/* OrbiStart Color System Variables & Application */
:root { /* Dark Theme (Default) - OrbiStart Palette */
    --os-bg-page: #1A1A1A;
    --os-surface-card: rgba(34, 36, 40, 0.85);
    --os-surface-card-opaque: rgb(34, 36, 40);
    --os-border-divider: #33363A;
    --os-primary-500: #2986CC; /* Main blue for active elements */
    --os-primary-400: #3D95E0; /* Lighter blue for hover */
    --os-primary-300: #5CA9FF; /* Accents, links */
    --os-text-primary: #F5F7F8;
    --os-text-secondary: #C6C8CA;
    --os-highlight-success: #34C759;
    --os-warning: #FFB02E; 
    --os-error: #FF404F; 
    --os-logo-image-url: url('../images/logo-dark-theme.webp');
    --os-logo-image-url-small: url('../images/logo-dark-theme-small.webp');
    
    --os-dark-bg-image: url('../images/dark-theme-background.webp');
    --os-light-bg-image: url('../images/light-theme-background.webp');
    --os-orbit-bg-image: url('../images/orbit-bg.webp');

    /* Generic application variables - Mapped for Dark Theme */
    --bg-color: var(--os-bg-page);
    --text-color: var(--os-text-primary);
    --text-color-secondary: var(--os-text-secondary);
    --card-bg: var(--os-surface-card);
    --card-bg-opaque: var(--os-surface-card-opaque);
    --input-bg: var(--os-surface-card);
    --border-color: var(--os-border-divider);
    --shadow-color: rgba(0, 0, 0, 0.25);
    --hover-bg: rgba(255, 255, 255, 0.08);
    --primary-color: var(--os-primary-500);
    --primary-hover-color: var(--os-primary-400);
    --secondary-color: var(--os-primary-300);
    --link-color: var(--os-primary-300);
    
    --button-text-color: var(--os-text-primary);
    --button-border-color: var(--os-border-divider);
    --button-bg-color: transparent;
    --button-primary-bg: var(--os-primary-500);
    --button-primary-text: #FFFFFF;
    --button-primary-hover-bg: var(--os-primary-400);
    
    --admin-button-bg: var(--os-warning);
    --admin-button-text: #1A1A1A;
    --admin-button-border: var(--os-warning);
    --admin-button-hover-bg: color-mix(in srgb, var(--os-warning) 85%, black);
    
    --active-label-bg: var(--os-primary-500);
    --active-label-color: #FFFFFF;
    --global-nav-bg: var(--os-surface-card-opaque);
    --global-nav-border: var(--os-border-divider);
    --global-nav-text: var(--os-text-primary);
    --global-nav-brand-text: var(--os-primary-300);
    --nav-module-link-hover-bg: var(--hover-bg);
    --white: #FFFFFF;
    --black: #000000;
    --danger-color: var(--os-error);
    --success-color: var(--os-highlight-success);

    --inactive-filter-bg: var(--os-surface-card);
    --inactive-filter-text: var(--os-text-primary);
    --inactive-filter-border: var(--os-border-divider);

    --page-background-image: var(--os-dark-bg-image);
}

body.theme-light {
    --os-bg-page: #F5F7F8; 
    --os-surface-card: rgba(255, 255, 255, 0.9); 
    --os-surface-card-opaque: rgb(255, 255, 255); 
    --os-border-divider: #D9DCEE;
    --os-primary-500: #2986CC; 
    --os-primary-400: #1F6EB8; 
    --os-primary-300: #3D95E0;
    --os-text-primary: #1A1A1A; 
    --os-text-secondary: #44474A;
    --os-highlight-success: #28A745; 
    --os-warning: #DCBA00; 
    --os-error: #D93025;
    --os-logo-image-url: url('../images/logo-light-theme.webp');
    --os-logo-image-url-small: url('../images/logo-light-theme-small.webp');

    --bg-color: var(--os-bg-page); 
    --text-color: var(--os-text-primary);
    --text-color-secondary: var(--os-text-secondary); 
    --card-bg: var(--os-surface-card);
    --card-bg-opaque: var(--os-surface-card-opaque);
    --input-bg: #FFFFFF; 
    --border-color: var(--os-border-divider);
    --shadow-color: rgba(0, 0, 0, 0.1); 
    --hover-bg: #e9ecef;
    --primary-color: var(--os-primary-500); 
    --primary-hover-color: var(--os-primary-400);
    --secondary-color: var(--os-primary-300);
    --link-color: var(--os-primary-500);
    --admin-button-text: var(--os-text-primary);
    --global-nav-brand-text: var(--os-primary-500);
    --page-background-image: var(--os-light-bg-image);
    
    /* Reverted: Unify light mode text colors for readability */
    --global-nav-text: var(--os-text-secondary);
    --button-text-color: var(--os-text-secondary);
    --inactive-filter-text: var(--os-text-secondary);
}

body.theme-orbit {
    --os-bg-page: #0F121C;
    --os-logo-image-url: url('../images/logo-dark-theme.webp');
    --os-logo-image-url-small: url('../images/logo-dark-theme-small.webp');
    --os-text-primary: #E0E7EF; 
    --os-text-secondary: #9AA5B8;
    --os-primary-300: #6CBFFF; 
    --os-surface-card: rgba(26, 30, 42, 0.8); 
    --os-surface-card-opaque: rgb(26, 30, 42);
    --os-border-divider: rgba(80, 84, 92, 0.4);
    --os-primary-500: #3B8EE5; 
    --os-primary-400: #5FA4F5;
    --os-warning: #FFC85A; 
    --os-error: #FF6B7C; 
    --os-highlight-success: #4CE078;

    --bg-color: var(--os-bg-page); 
    --text-color: var(--os-text-primary);
    --text-color-secondary: var(--os-text-secondary);
    --card-bg: var(--os-surface-card);
    --card-bg-opaque: var(--os-surface-card-opaque);
    --input-bg: rgba(32, 37, 50, 0.85); 
    --border-color: var(--os-border-divider);
    --shadow-color: rgba(0, 0, 0, 0.35); 
    --hover-bg: rgba(40, 45, 60, 0.9);
    --primary-color: var(--os-primary-500); 
    --primary-hover-color: var(--os-primary-400);
    --secondary-color: var(--os-primary-300);
    --link-color: var(--os-primary-300);
    --button-text-color: var(--os-primary-300);
    --button-border-color: var(--os-primary-300);
    --admin-button-text: #0F121C;
    --global-nav-brand-text: var(--os-primary-300);
    --inactive-filter-text: var(--os-text-primary);
    --page-background-image: var(--os-orbit-bg-image);
}

/* --- General Styles --- */
html { scroll-behavior: smooth; box-sizing: border-box; }
*, *:before, *:after { box-sizing: inherit; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    margin: 0;
    background-color: var(--bg-color);
    background-image: var(--page-background-image);
    background-size: cover; background-position: center center; background-repeat: no-repeat; background-attachment: fixed;
    color: var(--text-color);
    line-height: 1.6;
    padding-top: 60px; /* Height of global nav */
    transition: background-color 0.3s ease, color 0.3s ease;
    min-height: 100vh;
}
.auth-page-body {
    display: flex; flex-direction: column; justify-content: center; align-items: center;
    padding-top: 0; /* No top padding for auth pages */
}

a { color: var(--link-color); text-decoration: none; }
a:hover { text-decoration: underline; color: var(--primary-hover-color); }

/* Buttons General */
.btn { display: inline-block; padding: 0.6em 1.2em; font-size: 0.9rem; font-weight: 500; border-radius: 4px; cursor: pointer; text-align: center; text-decoration: none; transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease; border: 1px solid transparent; }
.btn-primary { background-color: var(--button-primary-bg); color: var(--button-primary-text); border-color: var(--button-primary-bg); }
.btn-primary:hover { background-color: var(--button-primary-hover-bg); border-color: var(--button-primary-hover-bg); }
.btn-secondary, .btn-outline { background-color: var(--button-bg-color); color: var(--button-text-color); border-color: var(--button-border-color); }
.btn-secondary:hover, .btn-outline:hover { background-color: var(--hover-bg); border-color: var(--primary-color); color: var(--primary-color); }
.btn-link { background: none; border: none; color: var(--link-color); padding: 0; text-decoration: underline; }
.btn-link:hover { color: var(--primary-hover-color); }
.btn-sm, .btn-xs { font-size: 0.8rem; padding: 0.4em 0.8em; }
.btn-xs { font-size: 0.7rem; padding: 0.2em 0.5em; }
button:disabled { cursor: not-allowed; opacity: 0.6; }

/* Forms */
.form-group { margin-bottom: 1rem; }
.form-group label, fieldset legend { display: block; margin-bottom: 0.5rem; font-weight: 500; color: var(--text-color-secondary); font-size: 0.9em; }
fieldset { border: 1px solid var(--border-color); padding: 1rem; border-radius: 4px; margin-bottom: 1rem;}
fieldset legend { padding: 0 0.5em; margin-left: 0.5em; font-size: 1em; font-weight: bold; color: var(--text-color); }
input[type="text"], input[type="email"], input[type="password"], input[type="url"], input[type="search"], input[type="number"], textarea, select {
    width: 100%; padding: 0.75rem; border: 1px solid var(--border-color); border-radius: 4px; box-sizing: border-box; background-color: var(--input-bg); color: var(--text-color); font-size: 1rem; transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary-color) 30%, transparent); }
textarea { min-height: 80px; resize: vertical; }
::placeholder { color: var(--text-color-secondary); opacity: 0.7; }

/* --- Global Navigation --- */
.top-global-nav { background-color: var(--global-nav-bg); border-bottom: 1px solid var(--global-nav-border); box-shadow: 0 1px 5px var(--shadow-color); padding: 0 20px; position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: 60px; display: flex; align-items: center; justify-content: space-between; box-sizing: border-box; }
.global-nav-left, .global-nav-right { display: flex; align-items: center; gap: 15px; }
.logo-link-global { display: flex; align-items: center; text-decoration: none; gap: 10px; }
.dashboard-logo-small { width: 36px; height: 36px; background-image: var(--os-logo-image-url-small); background-size: contain; background-repeat: no-repeat; background-position: center; }
.site-name-global { font-size: 1.5rem; font-weight: bold; color: var(--global-nav-brand-text); }
.main-module-links { list-style: none; padding: 0; margin: 0; display: flex; gap: 5px; }
.main-module-links li a { color: var(--global-nav-text); text-decoration: none; padding: 8px 12px; border-radius: 4px; font-size: 0.9rem; transition: background-color 0.2s ease, color 0.2s ease; }
.main-module-links li a:hover { background-color: var(--nav-module-link-hover-bg); color: var(--primary-color); }
.main-module-links li a.active-module { font-weight: bold; color: var(--primary-color); box-shadow: inset 0 -2px 0 var(--primary-color); }
.theme-select-global-container { display: flex; align-items: center; }
.theme-select-label.visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); border: 0; }
#theme-select, #theme-preference-select-account {
    padding: 5px 8px; border-radius: 4px; border: 1px solid var(--border-color); background-color: var(--input-bg); color: var(--text-color); cursor: pointer; font-size: 0.85em;
}
#theme-select option, #theme-preference-select-account option { background-color: var(--card-bg-opaque); color: var(--text-color); }
.user-greeting-nav { color: var(--text-color-secondary); font-size: 0.9em; margin-right: 10px; }
.global-nav-btn { padding: 7px 15px; border-radius: 4px; font-size: 0.9rem; text-decoration: none; cursor: pointer; border: 1px solid transparent; transition: background-color 0.2s ease, border-color 0.2s ease; font-weight: 500; }
.global-nav-btn.account-btn { background-color: var(--secondary-color); color: var(--white); border: none; }
.global-nav-btn.account-btn:hover { background-color: color-mix(in srgb, var(--secondary-color) 85%, black); }
.global-nav-btn.logout-btn { background-color: var(--button-primary-bg); color: var(--button-primary-text); border-color: var(--button-primary-bg); }
.global-nav-btn.logout-btn:hover { background-color: var(--button-primary-hover-bg); border-color: var(--button-primary-hover-bg); }

/* Main Wrapper for Status & Loading */
#main-wrapper { position: relative; padding: 20px; }
.status-message-container-fixed { position: fixed; top: 70px; left: 50%; transform: translateX(-50%); z-index: 1001; width: auto; max-width: 90%; padding: 0; }
.notification { padding: 0.8rem 1.2rem; margin-bottom: 0.5rem; border-radius: 4px; font-size: 0.9rem; text-align: center; box-shadow: 0 2px 5px rgba(0,0,0,0.15); border: 1px solid transparent; }
.notification.success { background-color: color-mix(in srgb, var(--success-color) 80%, var(--card-bg-opaque) 20%); color: var(--text-color); border-color: var(--success-color); }
.notification.error { background-color: color-mix(in srgb, var(--danger-color) 80%, var(--card-bg-opaque) 20%); color: var(--text-color); border-color: var(--danger-color); }
#loading-indicator { position: fixed; top: 75px; left: 50%; transform: translateX(-50%); background-color: var(--primary-color); color: var(--white); padding: 8px 15px; border-radius: 4px; box-shadow: 0 2px 8px var(--shadow-color); z-index: 2000; font-size: 0.9rem; }

/* --- GOOGLE-STYLE SEARCH BAR --- */
.google-search-section { max-width: 800px; margin: 20px auto 40px auto; }
.google-search-form { display: flex; border: 1px solid var(--border-color); border-radius: 24px; background-color: var(--input-bg); overflow: hidden; box-shadow: 0 1px 6px var(--shadow-color); transition: box-shadow 0.2s ease, border-color 0.2s ease; }
.google-search-form:hover, .google-search-form:focus-within { box-shadow: 0 2px 8px var(--shadow-color); border-color: var(--primary-color); }
#search-engine-select { 
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    border: none;
    border-right: 1px solid var(--border-color);
    background-color: transparent;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.5rem center;
    background-size: 1em;
    color: var(--text-color-secondary);
    font-weight: 500;
    padding-left: 15px;
    padding-right: 2rem;
    width: 110px;
}
#search-engine-select:focus { outline: none; }
#google-search-input { flex-grow: 1; border: none; background: transparent; padding: 10px 15px; font-size: 1rem; }
#google-search-input:focus { outline: none; }
.search-submit-btn { background: var(--primary-color); color: white; border: none; padding: 0 20px; cursor: pointer; font-weight: 500; }
.search-submit-btn:hover { background: var(--primary-hover-color); }


/* --- Page Structure for Dashboard (index.php) --- */
.page-container { max-width: 1200px; margin: 0 auto; padding: 20px; }
.dashboard-layout { display: flex; gap: 20px; }
.main-content-area { flex: 3; display: flex; flex-direction: column; gap: 20px; min-width: 0; }
.right-sidebar-panel { flex: 1; min-width: 280px; max-width: 320px; position: sticky; top: 80px; align-self: flex-start; }
.main-content-title { font-size: 1.2rem; font-weight: bold; color: var(--text-color); margin: 0; text-transform: uppercase; padding-bottom: 10px; border-bottom: 1px solid var(--border-color); }
.search-and-quickfilters { display: flex; flex-direction: column; gap: 15px; }
.quick-filter-buttons-row { display: flex; justify-content: space-between; align-items: center; gap: 15px; flex-wrap: wrap; }
.quick-filter-buttons { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.quick-filter-btn { padding: 8px 15px; border-radius: 20px; cursor: pointer; transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease; font-size: 0.9rem; text-decoration: none; display: inline-block; border-width: 1px; border-style: solid; }
#bookmark-manager-btn.quick-filter-btn { background-color: var(--admin-button-bg); color: var(--admin-button-text); border-color: var(--admin-button-border); }
#bookmark-manager-btn.quick-filter-btn:hover { background-color: var(--admin-button-hover-bg); border-color: var(--admin-button-hover-bg); }
#daily-filter-btn.quick-filter-btn:not(.active), #all-filter-btn.quick-filter-btn:not(.active) { background-color: var(--inactive-filter-bg); color: var(--inactive-filter-text); border-color: var(--inactive-filter-border); }
#daily-filter-btn.quick-filter-btn:not(.active):hover, #all-filter-btn.quick-filter-btn:not(.active):hover { background-color: color-mix(in srgb, var(--inactive-filter-bg) 80%, var(--text-color) 20%); border-color: var(--primary-color); }
#daily-filter-btn.quick-filter-btn.active, #all-filter-btn.quick-filter-btn.active { background-color: var(--active-label-bg); color: var(--active-label-color); border-color: var(--active-label-bg); }
#search-input { width: 100%; padding: 10px 15px; border: 1px solid var(--border-color); border-radius: 4px; box-sizing: border-box; font-size: 1rem; background-color: var(--input-bg); color: var(--text-color); }
.sort-section { display: flex; align-items: center; gap: 8px; }
.sort-section label { font-size: 0.9em; color: var(--text-color-secondary); }
#sort-dropdown { font-size: 0.9em; padding: 6px 8px; }

/* Filter Panel */
.label-nav-panel { background-color: var(--card-bg); border-radius: 8px; border: 1px solid var(--border-color); box-shadow: 0 1px 3px var(--shadow-color); display: flex; flex-direction: column; height: 65vh; max-height: 700px; }
.label-nav-title { font-size: 0.9rem; font-weight: bold; color: var(--button-primary-text); background-color: var(--primary-color); padding: 12px 15px; margin: 0; border-top-left-radius: inherit; border-top-right-radius: inherit; text-align: left; flex-shrink: 0; }
#filters-content { flex: 1; min-height: 0; overflow-y: auto; }
#label-tree-root-container { list-style-type: none; padding: 10px 15px; margin: 0; }
.label-tree-item .label-content { display: flex; align-items: center; padding: 3px 0; }
.label-toggler, .label-toggler-placeholder { display: inline-flex; align-items: center; justify-content: center; width: 18px; height: 18px; margin-right: 6px; color: var(--text-color-secondary); font-size: 0.7em; user-select: none; flex-shrink: 0; position: relative; }
.label-toggler { cursor: pointer; border-radius: 3px; }
.label-toggler:hover { background-color: var(--hover-bg); }
.label-toggler.expanded::before { content: ''; position: absolute; left:50%; top:50%; width: 0; height: 0; border-style: solid; border-width: 6px 5px 0 5px; border-color: var(--text-color-secondary) transparent transparent transparent; transform: translate(-50%, -65%); }
.label-toggler.collapsed::before { content: ''; position: absolute; left:50%; top:50%; width: 0; height: 0; border-style: solid; border-width: 5px 0 5px 6px; border-color: transparent transparent transparent var(--text-color-secondary); transform: translate(-60%, -50%); }
.label-toggler-placeholder::before { content: "•"; font-size: 1.4em; line-height: 1; color: var(--text-color-secondary); position: relative; left: 1px; top: -1px; }
.label-tree-item button { background-color: transparent; border: none; color: var(--link-color); padding: 4px 6px; text-align: left; cursor: pointer; border-radius: 4px; font-size: 0.9em; margin: 0; transition: background-color 0.2s ease, color 0.2s ease; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: inline-block; vertical-align: middle; max-width: calc(100% - 28px); }
.label-tree-item button:hover { background-color: var(--hover-bg); color: var(--primary-hover-color); }
.label-tree-item button.active { background-color: var(--active-label-bg); color: var(--active-label-color); font-weight: bold; }
.label-sub-tree { 
    padding-left: 20px; 
    margin: 2px 0 0 0; 
    width: 100%; 
    box-sizing: border-box; 
    list-style-type: none; /* FIX: Remove circle from nested lists */
}

/* --- Bookmark Grid & Cards --- */
.bookmark-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 20px; transition: opacity 0.3s ease-in-out; min-height: 100px; }
.bookmark-grid.filtering { opacity: 0.7; }
.bookmark-card { background-color: var(--card-bg); border: 1px solid var(--border-color); border-radius: 8px; box-shadow: 0 2px 5px var(--shadow-color), 0 0 0 1px var(--border-color); padding: 15px; aspect-ratio: 1 / 1; display: flex; flex-direction: column; justify-content: space-around; align-items: center; text-align: center; position: relative; overflow: hidden; transition: transform 0.2s ease-out, box-shadow 0.2s ease-out, background-color 0.3s ease, border-color 0.3s ease; animation: fadeIn 0.4s ease-out; }
.bookmark-card:hover { transform: translateY(-3px) scale(1.02); box-shadow: 0 5px 12px var(--shadow-color), 0 0 0 1px var(--secondary-color); }
@keyframes fadeIn { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }
.bookmark-card a { text-decoration: none; color: inherit; display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100%; width: 100%; position:relative; z-index: 1;}
.bookmark-card .card-content-wrapper { display: flex; flex-direction: column; align-items: center; justify-content: center; flex-grow: 1; overflow: hidden; width: 100%; padding: 5px; }
.bookmark-card .favicon { width: 32px; height: 32px; object-fit: contain; margin-bottom: 12px; border-radius: 4px; flex-shrink: 0; }
.bookmark-card .website-title { font-size: 0.95rem; font-weight: 600; margin: 0; color: var(--text-color); width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: normal; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; max-height: 4.2em; line-height: 1.4em; }
.edit-bookmark-btn, .delete-bookmark-btn { border: none; border-radius: 50%; width: 28px; height: 28px; line-height: 28px; text-align: center; cursor: pointer; position: absolute; top: 6px; opacity: 0; transition: opacity 0.2s ease, background-color 0.2s ease; z-index: 10; display: flex; align-items: center; justify-content: center; background-color: color-mix(in srgb, var(--card-bg) 60%, transparent); backdrop-filter: blur(2px); }
.bookmark-card:hover .edit-bookmark-btn, .bookmark-card:hover .delete-bookmark-btn { opacity: 0.85; }
.edit-bookmark-btn:hover, .delete-bookmark-btn:hover { opacity: 1; }
.edit-bookmark-btn { left: 6px; color: var(--secondary-color); font-size: 14px; }
.edit-bookmark-btn:hover { background-color: var(--secondary-color); color: var(--white); }
.delete-bookmark-btn { right: 6px; color: var(--os-error); font-size: 16px; }
.delete-bookmark-btn:hover { background-color: var(--os-error); color: var(--white); }
.empty-state, .initial-load-message { color: var(--text-color-secondary); grid-column: 1 / -1; text-align: center; padding: 40px 20px; font-size: 1.1em; }
.empty-state a { color: var(--link-color); font-weight: 500; }

/* --- Admin & Account Page Specific Styles --- */
.admin-container, .account-settings-container { max-width: 750px; margin: 20px auto; padding: 30px 40px; background-color: var(--card-bg-opaque); border: 1px solid var(--border-color); border-radius: 8px; box-shadow: 0 4px 15px var(--shadow-color); }
#form-heading, .page-main-title { text-align: center; margin-bottom: 1.5rem; font-size: 1.6em; color: var(--primary-color); }
.greeting-text { text-align: center; font-size: 1.1em; margin-bottom: 25px; color: var(--text-color-secondary); }
.settings-section { margin-bottom: 2.5rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--border-color); }
.settings-section:last-of-type { border-bottom: none; margin-bottom: 0; }
.settings-section h2 { font-size: 1.3em; color: var(--text-color); margin-top: 0; margin-bottom: 1.5rem; padding-bottom: 0.5rem; border-bottom: 1px dashed var(--border-color); }
#save-website-button { background-color: var(--admin-button-bg); color: var(--admin-button-text); border-color: var(--admin-button-border); font-weight: bold; width: 100%; margin-top:1rem; padding: 0.8rem; }
#save-website-button:hover { background-color: var(--admin-button-hover-bg); }
.dashboard-link-container { text-align: center; margin-top: 20px; }

/* Admin Label Management */
.label-management-section { margin-top: 20px; margin-bottom: 20px; padding: 15px; border: 1px solid var(--border-color); border-radius: 4px; background-color: var(--input-bg); }
.new-label-form-inline { display: flex; gap: 10px; align-items: stretch; margin-bottom: 10px;}
.label-management-section p.instructions { font-size: 0.85em; color: var(--text-color-secondary); margin-top: 5px; margin-bottom: 0; }
.scrollable-labels-area { max-height: 250px; overflow-y: auto; padding: 8px; border: 1px solid var(--border-color); border-radius: 4px; background-color: var(--input-bg); }
.label-item-container { display: flex; align-items: center; padding: 4px 2px; }
.label-item-container.level-1 { margin-left: 20px; } .label-item-container.level-2 { margin-left: 40px; }
.label-checkbox-group { flex-grow: 1; display: flex; align-items: center; }
.label-checkbox-group input[type="checkbox"] { margin-right: 8px; transform: scale(1.1); accent-color: var(--primary-color); }
.label-checkbox-group label { cursor: pointer; font-size: 0.9em; }
.add-sub-label-btn { margin-left: auto; }
.delete-custom-label-icon { cursor: pointer; margin-left: 8px; color: var(--danger-color); font-weight: bold; padding: 0 6px; border-radius: 3px; font-size: 1.1em; line-height: 1; user-select: none; }
.delete-custom-label-icon:hover { background-color: var(--hover-bg); }

/* Account Calendar */
.calendar-preview-container { margin-top: 1rem; padding: 1rem; border: 1px dashed var(--border-color); border-radius: 4px; background-color: var(--input-bg); }
.calendar-preview-container h4 { margin-top: 0; color: var(--text-color-secondary); font-size: 0.9em; }
#calendar-embed-preview-account iframe { width: 100%; min-height: 450px; border: 1px solid var(--border-color); border-radius: 4px; background-color: var(--white); }
#calendar-embed-preview-account p { color: var(--text-color-secondary); }


/* --- Auth Pages (Consolidated from inline styles) --- */
.login-container-php, .register-container-php, .forgot-password-container, .reset-password-container { width: 100%; max-width: 420px; padding: 30px 35px; background-color: var(--card-bg); border-radius: 8px; box-shadow: 0 5px 15px var(--shadow-color); border: 1px solid var(--border-color); color: var(--text-color); margin: 20px; }
.dashboard-logo-auth { width: 200px; height: 54px; background-image: var(--os-logo-image-url); background-size: contain; background-repeat: no-repeat; background-position: center; margin: 0 auto 20px auto; }
.login-container-php h2, .register-container-php h2, .forgot-password-container h2, .reset-password-container h2 { text-align: center; color: var(--primary-color, #3d85c6); margin-top: 0; margin-bottom: 25px; font-size: 1.8em; }
.login-container-php button[type="submit"], .register-container-php button[type="submit"], .forgot-password-container button[type="submit"], .reset-password-container button[type="submit"] { width: 100%; padding: 12px; background-color: var(--primary-color, #3d85c6); color: var(--white, #fff); border: none; border-radius: 4px; cursor: pointer; font-size: 1rem; font-weight: bold; transition: background-color 0.2s ease; }
.login-container-php button[type="submit"]:hover, .register-container-php button[type="submit"]:hover, .forgot-password-container button[type="submit"]:hover, .reset-password-container button[type="submit"]:hover { background-color: #2c6aa0; }
.links-group { text-align: center; margin-top: 15px; font-size: 0.9em; }
.links-group p { margin-bottom: 8px; }
.links-group a { color: var(--primary-color, #3d85c6); text-decoration: underline; }
.error-message, .message.error-message { color: var(--danger-color, #dc3545); text-align: center; margin-top: 15px; margin-bottom: 10px; font-size: 0.9em; }
.success-message, .message.success-message { color: var(--success-color, #28a745); text-align: center; margin-top: 15px; }
.message a { color: var(--primary-color, #3d85c6); font-weight: bold; }
.message-display { text-align: center; margin-top: 20px; padding: 10px; border-radius: 4px; font-size: 0.9em; border: 1px solid transparent; }
.error-message-display { background-color: rgba(220, 53, 69, 0.1); color: var(--danger-color, #dc3545); border-color: var(--danger-color, #dc3545);}
.success-message-display { background-color: rgba(40, 167, 69, 0.1); color: var(--success-color, #28a745); border-color: var(--success-color, #28a745);}


/* --- Back to Top Button --- */
#backToTopBtn { position: fixed; bottom: 25px; right: 25px; width: 44px; height: 44px; background-color: var(--primary-color); color: var(--button-primary-text); border: none; border-radius: 50%; font-size: 22px; line-height: 44px; text-align: center; cursor: pointer; box-shadow: 0 2px 8px var(--shadow-color); z-index: 999; display: none; transition: background-color 0.2s, transform 0.2s; }
#backToTopBtn:hover { background-color: var(--primary-hover-color); transform: scale(1.05); }

/* --- SPECIFIC FIXES & RESPONSIVE STYLES --- */

/* Specific override for Light Theme header text */
body.theme-light .main-module-links li a,
body.theme-light #theme-select,
body.theme-light .user-greeting-nav {
    color: #F5F7F8;
}

/* Inactive filter buttons in light mode */
body.theme-light #daily-filter-btn.quick-filter-btn:not(.active), 
body.theme-light #all-filter-btn.quick-filter-btn:not(.active) { 
    background-color: #44474A;
    color: #F5F7F8; 
    border-color: #44474A;
}


/* Mobile Navigation */
.mobile-menu-toggle-btn { display: none; font-size: 1.8rem; background: none; border: none; color: var(--text-color); cursor: pointer; z-index: 1002; }
.mobile-menu-container { display: none; flex-direction: column; justify-content: center; align-items: center; gap: 20px; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: var(--card-bg-opaque); z-index: 1001; padding-top: 80px; text-align: center; }
.mobile-menu-container .main-module-links { display: flex; flex-direction: column; gap: 15px; }
.mobile-menu-container .global-nav-btn { display: block; margin: 10px 0; }
.filter-toggle-mobile { display: none; }


@media (max-width: 992px) { /* Tablet and below */
    body { padding-top: 60px; }
    #main-wrapper { padding: 15px; }
    .page-container { padding: 10px; }
    .top-global-nav { padding: 0 15px; }
    .main-module-links, .user-greeting-nav { display: none; }
    .mobile-menu-toggle-btn { display: block; }
    .dashboard-layout { flex-direction: column; }
    .right-sidebar-panel { order: -1; position: static; max-width: none; width: 100%; }
    
    /* Collapsible Filter Panel on Mobile */
    .label-nav-panel > .label-nav-title { display: none; }
    .filter-toggle-mobile { 
        display: flex; 
        justify-content: space-between; 
        align-items: center; 
        width: 100%; 
        background-color: var(--os-surface-card); 
        border: 1px solid var(--border-color);
        cursor: pointer; 
        border-radius: 8px;
        padding: 12px 15px;
        font-size: 1rem;
        font-weight: 500;
        color: var(--text-color);
    }
    .toggle-icon { font-size: 1.2em; }
    #filters-content { display: none; }
    #filters-content.open { display: block; }
    .label-nav-panel { height: auto; max-height: none; background: none; border: none; box-shadow: none; }
    
    #filters-content.open #label-tree-root-container {
        border: 1px solid var(--border-color); 
        border-top: none; 
        border-radius: 0 0 8px 8px; 
        max-height: 40vh;
        overflow-y: auto;
        padding: 10px; 
        background-color: var(--card-bg); 
    }
}

@media (max-width: 768px) {
    body { padding-top: 50px; }
    .top-global-nav { height: 50px; padding: 0 10px; }
    .site-name-global { font-size: 1.2rem; }
    .dashboard-logo-small { width: 28px; height: 28px; }
    #theme-select, #theme-preference-select-account { font-size: 0.8em; padding: 4px 6px;}
    .global-nav-btn { font-size: 0.85rem; padding: 6px 10px; }
    .main-content-title { font-size: 1.1rem; }
    .quick-filter-buttons { gap: 8px; }
    .quick-filter-btn { font-size: 0.85rem; padding: 7px 12px; }
    .bookmark-grid { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 15px; }
    .bookmark-card .website-title { font-size: 0.85rem; -webkit-line-clamp: 2; max-height: 2.6em; }
    .admin-container, .account-settings-container, .login-container-php, .register-container-php, .forgot-password-container, .reset-password-container { padding: 20px; margin: 20px 15px; }
    .label-sub-tree { padding-left: 15px; }
    #backToTopBtn { width: 40px; height: 40px; font-size: 20px; line-height: 40px; bottom: 15px; right: 15px;}
}
@media (max-width: 480px) {
    .top-global-nav { gap: 10px; }
    .site-name-global { display: none; }
    .logo-link-global { margin-right: auto; }
    .global-nav-right { gap: 6px; }
    .main-content-area, .right-sidebar-panel { gap: 15px; }
    .main-content-title { font-size: 1rem; }
    #search-input { font-size: 0.9rem; padding: 8px 10px; }
    .quick-filter-btn { font-size: 0.8rem; padding: 6px 10px; }
    .bookmark-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
    .bookmark-card { padding: 10px; }
    .bookmark-card .favicon { width: 24px; height: 24px; margin-bottom: 8px; }
    .bookmark-card .website-title { font-size: 0.8rem; -webkit-line-clamp: 3; line-height: 1.3em; max-height: 3.9em; }
    .label-tree-item button {font-size: 0.8rem;}
    .label-sub-tree { padding-left: 10px; }
    .admin-container h2, .account-settings-container h2, 
    .login-container-php h2, .register-container-php h2, 
    .forgot-password-container h2, .reset-password-container h2 { font-size: 1.5em; margin-bottom: 20px; }
    .admin-container, .account-settings-container, .login-container-php, .register-container-php, .forgot-password-container, .reset-password-container { padding: 15px; }
}

/* OrbiStart 2.0 visual layer */
:root{--os-bg:#0b1020;--os-surface:rgba(20,28,48,.82);--os-surface-2:rgba(30,41,67,.86);--os-border:rgba(255,255,255,.10);--os-text:#f7f9ff;--os-muted:#aab5cc;--os-accent:#6ea8fe;--os-accent-2:#8b7cff;--os-radius:20px;--os-shadow:0 24px 60px rgba(0,0,0,.28)}
body{background:var(--os-bg);color:var(--os-text);min-height:100vh}.theme-light{--os-bg:#eef3fb;--os-surface:rgba(255,255,255,.9);--os-surface-2:#fff;--os-border:rgba(23,42,76,.12);--os-text:#172033;--os-muted:#66738d;--os-accent:#2868d8;--os-shadow:0 22px 55px rgba(45,72,120,.14)}
.app-header{position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:14px clamp(18px,4vw,54px);backdrop-filter:blur(18px);background:rgba(9,14,27,.72);border-bottom:1px solid var(--os-border)}.theme-light .app-header{background:rgba(245,248,253,.78)}
.brand{display:flex;align-items:center;gap:10px;color:var(--os-text);font-weight:800;font-size:1.15rem;text-decoration:none}.brand-mark{width:34px;height:34px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#fff 0 7%,#7eb4ff 8% 25%,#6256d8 55%,#1b2240 100%);box-shadow:0 0 0 5px rgba(110,168,254,.12)}
.desktop-nav,.header-actions{display:flex;align-items:center;gap:10px}.desktop-nav a,.icon-link,.account-chip{color:var(--os-muted);text-decoration:none;padding:9px 12px;border-radius:12px}.desktop-nav a:hover,.desktop-nav a.active,.account-chip:hover,.icon-link:hover{color:var(--os-text);background:var(--os-surface)}
#main-wrapper{width:min(1500px,calc(100% - 32px));margin:0 auto;padding:32px 0 70px}.hero-search{max-width:980px;margin:18px auto 34px;text-align:center;padding:40px 24px}.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:.72rem;font-weight:800;color:var(--os-accent)}.hero-copy h1{font-size:clamp(2.1rem,5vw,4rem);line-height:1.05;margin:.35em 0 .2em}.hero-copy p{color:var(--os-muted);font-size:1.05rem}.universal-search{display:grid;grid-template-columns:auto 1fr auto;gap:10px;max-width:880px;margin:28px auto 0;padding:10px;background:var(--os-surface);border:1px solid var(--os-border);border-radius:24px;box-shadow:var(--os-shadow)}.universal-search input,.universal-search select,.universal-search button{border:0;border-radius:14px;padding:14px 16px;font-size:1rem}.universal-search input,.universal-search select{background:transparent;color:var(--os-text)}.universal-search button,.primary-action{background:linear-gradient(135deg,var(--os-accent),var(--os-accent-2));color:white!important;font-weight:800;text-decoration:none;border:0}
.dashboard-shell{display:grid;grid-template-columns:260px minmax(0,1fr);gap:22px;align-items:start}.sidebar-card,.bookmark-panel,.admin-container,.account-container,.auth-card,.login-container-php,.register-container-php,.forgot-password-container-php,.reset-password-container-php{background:var(--os-surface);border:1px solid var(--os-border);border-radius:var(--os-radius);box-shadow:var(--os-shadow)}.sidebar-card{padding:20px;position:sticky;top:88px}.bookmark-panel{padding:22px}.sidebar-heading,.panel-toolbar,.bookmark-controls{display:flex;align-items:center;justify-content:space-between;gap:14px}.sidebar-heading h2,.panel-toolbar h2{margin:4px 0}.primary-action{padding:11px 15px;border-radius:13px}.bookmark-controls{margin:22px 0;flex-wrap:wrap}.bookmark-controls input,.bookmark-controls select{background:var(--os-surface-2);color:var(--os-text);border:1px solid var(--os-border);border-radius:12px;padding:11px 13px}.bookmark-controls input{flex:1;min-width:220px}.segmented{display:flex;background:var(--os-surface-2);padding:4px;border-radius:13px}.segmented button{border:0;background:transparent;color:var(--os-muted);padding:8px 13px;border-radius:10px}.segmented button.active{background:var(--os-accent);color:#fff}.bookmark-grid{display:grid!important;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:15px}.bookmark-card{border-radius:16px!important;border:1px solid var(--os-border)!important;background:var(--os-surface-2)!important;box-shadow:none!important;transition:transform .18s ease,border-color .18s ease}.bookmark-card:hover{transform:translateY(-3px);border-color:rgba(110,168,254,.55)!important}.label-tree-root{padding:0;margin:14px 0;list-style:none}.filter-toggle-mobile{display:none}
.auth-page-body #main-wrapper{display:grid;place-items:center;min-height:100vh;padding:30px}.login-container-php,.register-container-php,.forgot-password-container-php,.reset-password-container-php,.auth-card{width:min(440px,100%);padding:34px}.admin-container,.account-container{max-width:900px;margin:24px auto;padding:28px}.form-group input,.form-group textarea,.form-group select{width:100%;box-sizing:border-box;background:var(--os-surface-2);color:var(--os-text);border:1px solid var(--os-border);border-radius:12px;padding:12px}
@media(max-width:860px){.desktop-nav,.header-actions .account-chip,.header-actions .icon-link{display:none}.dashboard-shell{grid-template-columns:1fr}.sidebar-card{position:static}.filter-toggle-mobile{display:inline-flex}.universal-search{grid-template-columns:1fr}.universal-search select,.universal-search button{width:100%}.bookmark-controls{align-items:stretch}.bookmark-controls>*{width:100%}}
.mobile-menu-container{display:none}.mobile-menu-container.open{display:flex;position:fixed;z-index:99;top:64px;left:16px;right:16px;flex-direction:column;gap:6px;padding:14px;background:var(--os-surface-2);border:1px solid var(--os-border);border-radius:16px;box-shadow:var(--os-shadow)}.mobile-menu-container a{color:var(--os-text);text-decoration:none;padding:12px;border-radius:10px}.mobile-menu-container a:hover{background:var(--os-surface)}

/* OrbiStart 2.1 Orbit redesign */
body.app-page-body {
    padding-top: 0;
    background-color: var(--os-bg);
    background-image: none;
    background-repeat: no-repeat;
    background-position: center top;
    background-size: cover;
    background-attachment: fixed;
}
body.theme-orbit.app-page-body {
    --os-bg: #050c17;
    --os-surface: rgba(8, 18, 35, .84);
    --os-surface-2: rgba(18, 31, 54, .82);
    --os-border: rgba(151, 190, 255, .24);
    --os-text: #f7f9ff;
    --os-muted: #b7c5da;
    --os-accent: #55a7ff;
    --os-accent-2: #765cff;
    background-image: linear-gradient(rgba(2, 8, 17, .18), rgba(2, 8, 17, .36)), url('../images/orbit-bg.webp');
}
body.theme-light.app-page-body { background-image: none; }
.header-wrap {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 14px clamp(14px, 2vw, 26px) 0;
}
.app-header {
    position: relative;
    top: auto;
    width: min(1600px, 100%);
    margin: 0 auto;
    min-height: 64px;
    padding: 8px 18px;
    border: 1px solid var(--os-border);
    border-radius: 15px;
    background: rgba(5, 12, 25, .82);
    box-shadow: 0 12px 34px rgba(0, 0, 0, .28);
    backdrop-filter: blur(20px) saturate(125%);
}
.theme-light .app-header { background: rgba(255, 255, 255, .86); }
.brand { gap: 9px; font-size: 1.3rem; letter-spacing: -.02em; white-space: nowrap; }
.brand-logo { width: 37px; height: 37px; object-fit: contain; filter: drop-shadow(0 0 8px rgba(91, 124, 255, .55)); }
.brand-mark { display: none; }
.desktop-nav { margin-left: clamp(18px, 3vw, 48px); margin-right: auto; }
.desktop-nav a { position: relative; padding: 11px 13px; }
.desktop-nav a.active { background: transparent; color: #8dcbff; }
.desktop-nav a.active::after {
    content: "";
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: 2px;
    height: 2px;
    border-radius: 99px;
    background: linear-gradient(90deg, #48a9ff, #7a66ff);
    box-shadow: 0 0 10px rgba(73, 169, 255, .65);
}
.header-actions { gap: 12px; min-width: 0; }
.theme-control { display: flex; align-items: center; gap: 8px; color: var(--os-text); font-size: .9rem; white-space: nowrap; }
.theme-control select {
    color: var(--os-text);
    background: rgba(255,255,255,.04);
    border: 1px solid var(--os-border);
    border-radius: 9px;
    padding: 8px 30px 8px 11px;
}
.header-divider { width: 1px; height: 24px; background: var(--os-border); }
.account-chip, .icon-link { padding: 8px 2px; white-space: nowrap; }
.account-chip { max-width: 245px; overflow: hidden; text-overflow: ellipsis; }
.logout-link { color: var(--os-text); font-weight: 700; }
.mobile-menu-toggle-btn { border: 1px solid var(--os-border); background: var(--os-surface); color: var(--os-text); border-radius: 9px; padding: 8px 10px; }
#main-wrapper { width: min(1500px, calc(100% - 34px)); padding-top: 22px; }
.hero-search { margin: 0 auto 20px; padding: 28px 24px 18px; }
.hero-copy h1 { font-size: clamp(2.4rem, 4.4vw, 4.25rem); text-shadow: 0 3px 18px rgba(0,0,0,.35); }
.hero-copy p { margin-bottom: 0; }
.universal-search { background: rgba(8, 18, 35, .78); border-color: rgba(151,190,255,.26); }
.dashboard-shell { grid-template-columns: 220px minmax(0,1fr); gap: 22px; max-width: 1260px; margin: 0 auto; }
.sidebar-card, .bookmark-panel { backdrop-filter: blur(16px) saturate(120%); }
.sidebar-card { top: 92px; }
.bookmark-panel { min-height: 480px; }
.bookmark-grid { grid-template-columns: repeat(5, minmax(145px, 1fr)); }
.bookmark-card { min-height: 142px; }
@media (max-width: 1180px) {
    .bookmark-grid { grid-template-columns: repeat(4, minmax(145px,1fr)); }
    .account-chip { max-width: 165px; }
}
@media (max-width: 940px) {
    .desktop-nav, .header-actions .account-chip, .header-actions .icon-link, .header-actions .header-divider, .theme-control > span { display: none; }
    .header-wrap { padding: 10px 10px 0; }
    .app-header { min-height: 58px; padding: 7px 12px; }
    #main-wrapper { width: min(100% - 20px, 900px); }
    .dashboard-shell { grid-template-columns: 1fr; }
    .sidebar-card { position: static; }
    .bookmark-grid { grid-template-columns: repeat(3, minmax(125px,1fr)); }
}
@media (max-width: 620px) {
    .brand { font-size: 1.08rem; }
    .brand-logo { width: 32px; height: 32px; }
    .hero-search { padding: 24px 5px 14px; }
    .hero-copy h1 { font-size: 2.2rem; }
    .universal-search { border-radius: 18px; }
    .bookmark-grid { grid-template-columns: repeat(2, minmax(120px,1fr)); }
    .bookmark-panel, .sidebar-card { padding: 16px; }
}


/* OrbiStart 2.2 theme polish and Neon Nebula theme */
.brand,
.brand:link,
.brand:visited,
.brand:hover,
.brand:focus,
.brand:active,
.brand span,
.brand:hover span,
.brand:focus span {
    color: var(--os-text);
    text-decoration: none !important;
}
.brand:hover,
.brand:focus-visible {
    background: rgba(255,255,255,.045);
    outline: none;
}

/* Dark is intentionally neutral and nearly black, not navy. */
body.theme-dark {
    --os-bg: #08090c;
    --os-surface: rgba(20,21,25,.94);
    --os-surface-2: #202126;
    --os-border: rgba(255,255,255,.11);
    --os-text: #f7f7f8;
    --os-muted: #b6b8c0;
    --os-accent: #62a8ff;
    --os-accent-2: #8a70ff;
    background-color: #08090c;
    background-image: radial-gradient(circle at 50% -15%, rgba(255,255,255,.05), transparent 38%);
}
body.theme-dark .app-header { background: rgba(10,10,13,.92); }

/* Native select menus need explicit option colors in every browser. */
.theme-control select,
#theme-preference-select-account,
.universal-search select,
.bookmark-controls select,
#sort-dropdown {
    color-scheme: dark;
}
body.theme-dark select,
body.theme-orbit select,
body.theme-nebula select,
body.theme-green select,
body.theme-manor select {
    color: #f4f7ff !important;
    background-color: #171a21 !important;
}
body.theme-dark select option,
body.theme-orbit select option,
body.theme-nebula select option,
body.theme-green select option,
body.theme-manor select option {
    color: #f4f7ff !important;
    background: #171a21 !important;
}
body.theme-light select {
    color-scheme: light;
    color: #172033 !important;
    background-color: #ffffff !important;
    border-color: rgba(23,42,76,.18) !important;
}
body.theme-light select option {
    color: #172033 !important;
    background: #ffffff !important;
}
body.theme-light .universal-search {
    background: rgba(255,255,255,.96);
    border-color: rgba(23,42,76,.16);
}
body.theme-light .universal-search input {
    color: #172033 !important;
}
body.theme-light .universal-search input::placeholder { color: #73809a; }
body.theme-light .theme-control select { color: #172033 !important; background: #fff !important; }

/* Surprise theme: Neon Nebula */
body.theme-nebula {
    --os-bg: #10051d;
    --os-surface: rgba(30,10,51,.82);
    --os-surface-2: rgba(47,17,73,.88);
    --os-border: rgba(255,141,231,.23);
    --os-text: #fff7ff;
    --os-muted: #d9bfe6;
    --os-accent: #ff58c7;
    --os-accent-2: #6d7cff;
    --os-shadow: 0 24px 65px rgba(20,0,40,.44);
    background-color: #10051d;
    background-image:
        radial-gradient(circle at 15% 12%, rgba(255,70,190,.30), transparent 30%),
        radial-gradient(circle at 85% 24%, rgba(83,102,255,.30), transparent 34%),
        radial-gradient(circle at 55% 100%, rgba(117,51,255,.24), transparent 38%),
        linear-gradient(145deg, #090317 0%, #180626 48%, #071125 100%);
    background-attachment: fixed;
}
body.theme-nebula::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    opacity: .45;
    background-image:
        radial-gradient(circle, rgba(255,255,255,.75) 0 1px, transparent 1.4px),
        radial-gradient(circle, rgba(255,182,240,.55) 0 1px, transparent 1.4px);
    background-size: 90px 90px, 137px 137px;
    background-position: 0 0, 38px 24px;
    z-index: -1;
}
body.theme-nebula .app-header {
    background: rgba(19,5,34,.78);
    border-color: rgba(255,133,225,.24);
}
body.theme-nebula .brand-logo {
    filter: drop-shadow(0 0 10px rgba(255,88,199,.65));
}
body.theme-nebula .desktop-nav a.active { color: #ff9be2; }
body.theme-nebula .desktop-nav a.active::after {
    background: linear-gradient(90deg, #ff58c7, #7182ff);
    box-shadow: 0 0 12px rgba(255,88,199,.7);
}
body.theme-nebula .universal-search,
body.theme-nebula .sidebar-card,
body.theme-nebula .bookmark-panel {
    backdrop-filter: blur(18px) saturate(135%);
}
body.theme-nebula .bookmark-card:hover {
    border-color: rgba(255,112,211,.48);
    box-shadow: 0 15px 34px rgba(91,35,160,.28);
}


/* Version 2.3 Green theme: greenery, dinosaurs, aliens, and UFOs */
body.theme-green {
    --os-bg: #031109;
    --os-surface: rgba(8, 20, 13, .82);
    --os-surface-2: rgba(11, 31, 19, .9);
    --os-border: rgba(124, 255, 181, .18);
    --os-text: #effff2;
    --os-muted: #b9dfc4;
    --os-accent: #8bff7c;
    --os-accent-2: #40d985;
    --os-shadow: 0 28px 65px rgba(0, 0, 0, .45);
    background-color: #031109;
    background-image:
        linear-gradient(180deg, rgba(3, 14, 8, .42) 0%, rgba(3, 14, 8, .66) 52%, rgba(2, 10, 6, .88) 100%),
        radial-gradient(circle at 50% 10%, rgba(82, 255, 170, .12), transparent 38%),
        url('../images/green-theme-bg.webp');
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
}
body.theme-green::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(circle at 78% 16%, rgba(139, 255, 124, .10), transparent 20%),
        radial-gradient(circle at 18% 86%, rgba(92, 255, 186, .08), transparent 25%);
    z-index: -1;
}
body.theme-green .app-header {
    background: rgba(4, 17, 11, .78);
    border-color: rgba(124, 255, 181, .18);
}
body.theme-green .brand-logo {
    filter: drop-shadow(0 0 10px rgba(97, 255, 140, .26));
}
body.theme-green .desktop-nav a.active { color: #b9ff8a; }
body.theme-green .desktop-nav a.active::after {
    background: linear-gradient(90deg, #9dff79, #46d58b);
    box-shadow: 0 0 12px rgba(139,255,124,.35);
}
body.theme-green .eyebrow,
body.theme-green .sidebar-eyebrow,
body.theme-green .panel-eyebrow {
    color: #9dff79;
}
body.theme-green .universal-search,
body.theme-green .sidebar-card,
body.theme-green .bookmark-panel {
    backdrop-filter: blur(18px) saturate(120%);
}
body.theme-green .bookmark-card:hover {
    border-color: rgba(139, 255, 124, .5);
    box-shadow: 0 18px 34px rgba(25, 84, 43, .28);
}
body.theme-green .primary-button,
body.theme-green .add-bookmark-btn,
body.theme-green .search-submit {
    background: linear-gradient(135deg, #68d36d 0%, #9dff79 100%);
    color: #07200d;
}
body.theme-green .quick-filter.active {
    background: linear-gradient(135deg, rgba(95,220,110,.85), rgba(162,255,124,.95));
    color: #0a1b0f;
}


/* Version 2.4.1 Midnight Manor theme, scarier haunted-house edition */
body.theme-manor {
    --os-bg: #06070d;
    --os-surface: rgba(14, 14, 22, .82);
    --os-surface-2: rgba(21, 22, 32, .9);
    --os-border: rgba(183, 193, 255, .18);
    --os-text: #f7f8ff;
    --os-muted: #c3c7dd;
    --os-accent: #b7bfff;
    --os-accent-2: #86e0c0;
    --os-shadow: 0 28px 65px rgba(0,0,0,.56);
    background-color: #06070d;
    background-image:
      linear-gradient(180deg, rgba(6,7,13,.50) 0%, rgba(6,7,13,.60) 38%, rgba(6,7,13,.78) 100%),
      radial-gradient(circle at 50% 12%, rgba(146, 158, 255, .10), transparent 24%),
      url('../images/manor-theme-bg.webp');
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
}
body.theme-manor::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background:
      linear-gradient(180deg, rgba(3,4,8,.12) 0%, rgba(3,4,8,.18) 40%, rgba(3,4,8,.32) 100%),
      radial-gradient(circle at 15% 18%, rgba(255,255,255,.06), transparent 16%),
      radial-gradient(circle at 83% 24%, rgba(174, 255, 231, .04), transparent 14%);
    z-index: -1;
}
body.theme-manor .app-header { background: rgba(8,9,15,.76); border-color: rgba(183, 193, 255, .16); }
body.theme-manor .desktop-nav a.active { color: #d9defe; }
body.theme-manor .desktop-nav a.active::after { background: linear-gradient(90deg,#aab5ff,#8ce3c9); box-shadow: 0 0 12px rgba(170,181,255,.40); }
body.theme-manor .eyebrow,
body.theme-manor .sidebar-eyebrow,
body.theme-manor .panel-eyebrow { color: #c5cbff; }
body.theme-manor .primary-action,
body.theme-manor .add-bookmark-btn,
body.theme-manor .search-submit,
body.theme-manor .universal-search button { background: linear-gradient(135deg,#7788ff,#90d3c0); color: #071019; }
body.theme-manor .bookmark-card:hover { border-color: rgba(183,193,255,.42)!important; box-shadow: 0 18px 36px rgba(29,33,72,.28)!important; }

/* Mobile layout refinement */
@media (max-width: 940px) {
    body.app-page-body { background-attachment: scroll; }
    .header-wrap { padding: 8px 8px 0; }
    .app-header { border-radius: 14px; }
    .header-actions { gap: 8px; }
    .theme-control select { max-width: 118px; padding: 8px 26px 8px 9px; }
    .hero-search { padding-top: 20px; }
    .hero-copy p { padding: 0 12px; }
    .sidebar-card { order: 2; }
    .bookmark-panel { order: 1; }
    .filters-content-collapsible { max-height: 0; overflow: hidden; transition: max-height .25s ease; }
    .filters-content-collapsible.open { max-height: 65vh; overflow: auto; margin-top: 10px; }
}
@media (max-width: 620px) {
    #main-wrapper { width: calc(100% - 16px); padding-top: 12px; }
    .brand span { display: inline; }
    .brand { font-size: 1rem; gap: 7px; }
    .brand-logo { width: 30px; height: 30px; }
    .app-header { min-height: 54px; padding: 7px 9px; }
    .theme-control select { font-size: .82rem; max-width: 104px; }
    .mobile-menu-toggle-btn { padding: 7px 9px; }
    .hero-copy h1 { font-size: clamp(2rem, 10vw, 2.75rem); line-height: 1.05; }
    .hero-copy p { font-size: .95rem; }
    .universal-search { display: grid; grid-template-columns: 1fr; gap: 8px; padding: 8px; margin-top: 20px; }
    .universal-search select,
    .universal-search input,
    .universal-search button { width: 100%; min-height: 48px; }
    .panel-toolbar { align-items: flex-start; }
    .panel-toolbar .primary-action { padding: 10px 12px; font-size: .9rem; }
    .bookmark-controls { margin: 16px 0; }
    .bookmark-controls input { min-width: 0; }
    .bookmark-grid { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px; }
    .bookmark-card { min-height: 118px; padding: 12px!important; }
    .bookmark-card .website-title { font-size: .82rem; }
    .sidebar-card, .bookmark-panel { border-radius: 16px; padding: 14px; }
}
@media (max-width: 390px) {
    .brand span { display: none; }
    .theme-control select { max-width: 96px; }
    .hero-copy h1 { font-size: 2rem; }
}

/* Mobile install prompt */
.install-app-prompt[hidden] { display: none!important; }
.install-app-prompt {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 14px;
    background: rgba(0,0,0,.58);
    backdrop-filter: blur(6px);
}
.install-app-card {
    position: relative;
    display: grid;
    grid-template-columns: 72px 1fr;
    gap: 15px;
    width: min(560px,100%);
    padding: 20px;
    border: 1px solid var(--os-border);
    border-radius: 22px;
    background: color-mix(in srgb, var(--os-surface-2) 94%, black 6%);
    color: var(--os-text);
    box-shadow: 0 28px 80px rgba(0,0,0,.55);
}
.install-app-icon { width: 72px; height: 72px; border-radius: 18px; object-fit: cover; }
.install-app-close { position:absolute; top:8px; right:10px; width:34px; height:34px; border:0; border-radius:50%; background:transparent; color:var(--os-muted); font-size:1.6rem; }
.install-app-kicker { color: var(--os-accent); text-transform:uppercase; letter-spacing:.12em; font-size:.7rem; font-weight:800; }
.install-app-copy h2 { margin:5px 30px 6px 0; font-size:1.25rem; }
.install-app-copy p { margin:0 0 10px; color:var(--os-muted); }
.install-ios-steps { margin:10px 0; padding:11px 12px; border-radius:12px; background:var(--os-surface); line-height:1.45; }
.install-app-actions { display:flex; flex-wrap:wrap; gap:9px; margin-top:12px; }
.install-app-button,.install-app-later { border:0; border-radius:12px; padding:11px 14px; font-weight:800; }
.install-app-button { background:linear-gradient(135deg,var(--os-accent),var(--os-accent-2)); color:#fff; }
.install-app-later { background:var(--os-surface); color:var(--os-text); border:1px solid var(--os-border); }
@media (min-width: 901px) { .install-app-prompt { display:none!important; } }
@media (max-width: 430px) {
    .install-app-card { grid-template-columns: 56px 1fr; padding:16px; border-radius:19px; }
    .install-app-icon { width:56px; height:56px; border-radius:14px; }
    .install-app-copy h2 { font-size:1.08rem; }
    .install-app-actions { grid-column:1 / -1; }
}


/* Version 2.4.2 dark theme polish */
body.theme-dark .universal-search {
    background: rgba(20, 21, 25, .94);
    border-color: rgba(255,255,255,.11);
}
body.theme-dark .universal-search select,
body.theme-dark .universal-search input {
    background: rgba(255,255,255,.02);
}


/* Version 2.5.0 mobile backgrounds and install entry points */
.mobile-menu-container .mobile-menu-action {
    appearance: none;
    width: 100%;
    border: 0;
    background: transparent;
    color: var(--os-text);
    text-align: left;
    font: inherit;
    padding: 12px;
    border-radius: 10px;
    cursor: pointer;
}
.mobile-menu-container .mobile-menu-action:hover,
.mobile-menu-container .mobile-menu-action:focus-visible {
    background: var(--os-surface);
    outline: none;
}
.install-settings-actions { margin-top: 12px; }
.install-settings-section [data-install-open] { min-width: 210px; }

@media (max-width: 767px) and (orientation: portrait) {
    body.theme-orbit.app-page-body {
        background-image: linear-gradient(rgba(2, 8, 17, .18), rgba(2, 8, 17, .36)), url('../images/orbit-bg-mobile-portrait.webp');
        background-position: center center;
    }
    body.theme-green {
        background-image:
            linear-gradient(180deg, rgba(3, 14, 8, .42) 0%, rgba(3, 14, 8, .66) 52%, rgba(2, 10, 6, .88) 100%),
            radial-gradient(circle at 50% 10%, rgba(82, 255, 170, .12), transparent 38%),
            url('../images/green-theme-bg-mobile-portrait.webp');
        background-position: center center;
    }
    body.theme-manor {
        background-image:
            linear-gradient(180deg, rgba(6,7,13,.50) 0%, rgba(6,7,13,.60) 38%, rgba(6,7,13,.78) 100%),
            radial-gradient(circle at 50% 12%, rgba(146, 158, 255, .10), transparent 24%),
            url('../images/manor-theme-bg-mobile-portrait.webp');
        background-position: center center;
    }
}

@media (max-width: 950px) and (orientation: landscape) {
    body.theme-orbit.app-page-body {
        background-image: linear-gradient(rgba(2, 8, 17, .18), rgba(2, 8, 17, .36)), url('../images/orbit-bg-mobile-landscape.webp');
        background-position: center center;
    }
    body.theme-green {
        background-image:
            linear-gradient(180deg, rgba(3, 14, 8, .42) 0%, rgba(3, 14, 8, .66) 52%, rgba(2, 10, 6, .88) 100%),
            radial-gradient(circle at 50% 10%, rgba(82, 255, 170, .12), transparent 38%),
            url('../images/green-theme-bg-mobile-landscape.webp');
        background-position: center center;
    }
    body.theme-manor {
        background-image:
            linear-gradient(180deg, rgba(6,7,13,.50) 0%, rgba(6,7,13,.60) 38%, rgba(6,7,13,.78) 100%),
            radial-gradient(circle at 50% 12%, rgba(146, 158, 255, .10), transparent 24%),
            url('../images/manor-theme-bg-mobile-landscape.webp');
        background-position: center center;
    }
}