/* ==========================================================================
   Google Material Design 3 (M3) - Master Framework (Light Theme)
   ========================================================================== */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Google+Sans:wght@400;500;700&family=Roboto:wght@400;500;700&display=swap');

/* ✅ 1️⃣ Root / Global Selectors */
:root {
    /* M3 Color Tokens */
    --md-primary: #0b57d0;
    --md-on-primary: #ffffff;
    --md-primary-container: #d3e3fd;
    --md-on-primary-container: #041e49;
    --md-secondary: #535f70;
    --md-on-secondary: #ffffff;
    --md-secondary-container: #d7e3f7;
    --md-accent: #006a6a; /* Teal accent */
    --md-danger: #b3261e;
    --md-danger-container: #f9dedc;
    --md-success: #146c2e;
    --md-success-container: #c4eed0;
    --md-warning: #8d5000;
    --md-warning-container: #ffdcbe;
    --md-info: #00639b;
    --md-info-container: #cce5ff;
    
    --md-surface: #fdfbff;
    --md-surface-container: #ffffff;
    --md-surface-variant: #e0e2ec;
    --md-text: #1a1c1e;
    --md-text-variant: #43474e;
    --md-outline: #74777f;
    --md-outline-variant: #c4c6d0;

    /* Elevation (Shadows) */
    --md-elevation-1: 0 1px 2px rgba(0,0,0,0.1), 0 1px 3px rgba(0,0,0,0.05);
    --md-elevation-2: 0 2px 6px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.05);
    --md-elevation-3: 0 4px 8px rgba(0,0,0,0.1), 0 1px 3px rgba(0,0,0,0.05);

    /* Shapes */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    --border-radius-full: 9999px;
}

* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html { scroll-behavior: smooth; }

body { background-color: var(--md-surface); color: var(--md-text); font-family: 'Google Sans', 'Roboto', sans-serif; line-height: 1.6; }

@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

/* ✅ 2️⃣ Layout Classes */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 40px 0; }
.row { display: flex; flex-wrap: wrap; gap: 20px; }
.col { flex: 1; min-width: 280px; }

/* ✅ 3️⃣ Typography */
h1, h2, h3, h4, h5, h6 { color: var(--md-text); font-weight: 700; margin-bottom: 12px; }
h1 { font-size: 2.5rem; line-height: 1.2; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }
p { color: var(--md-text-variant); margin-bottom: 16px; }

/* ✅ 4️⃣ Form Related Selectors */
.form-group { margin-bottom: 20px; display: flex; flex-direction: column; }
.label { font-size: 14px; font-weight: 500; color: var(--md-text); margin-bottom: 6px; }
.input, .textarea, .select { 
    padding: 14px 16px; font-size: 16px; border: 1px solid var(--md-outline); 
    border-radius: var(--border-radius-sm); background: transparent; color: var(--md-text); outline: none; transition: 0.2s; 
}
.input:focus, .textarea:focus, .select:focus { border-color: var(--md-primary); box-shadow: 0 0 0 1px var(--md-primary); }
input[type="number"] { -moz-appearance: textfield; }
.textarea { resize: vertical; min-height: 100px; }
.radio-group, .checkbox-group { display: flex; gap: 16px; flex-wrap: wrap; }

/* Custom Control (Checkbox & Radio) */
.custom-control { display: flex; align-items: center; cursor: pointer; position: relative; padding-left: 32px; font-size: 15px; user-select: none; }
.custom-control input { position: absolute; opacity: 0; cursor: pointer; height: 0; width: 0; }
.checkmark { position: absolute; top: 0; left: 0; height: 20px; width: 20px; border: 2px solid var(--md-outline); transition: 0.2s; }
.custom-radio .checkmark { border-radius: 50%; }
.custom-checkbox .checkmark { border-radius: 4px; }
.custom-control:hover input ~ .checkmark { border-color: var(--md-primary); }
.custom-control input:checked ~ .checkmark { background-color: var(--md-primary); border-color: var(--md-primary); }
.checkmark:after { content: ""; position: absolute; display: none; }
.custom-control input:checked ~ .checkmark:after { display: block; }
.custom-checkbox .checkmark:after { left: 6px; top: 2px; width: 5px; height: 10px; border: solid white; border-width: 0 2px 2px 0; transform: rotate(45deg); }
.custom-radio .checkmark:after { top: 4px; left: 4px; width: 8px; height: 8px; border-radius: 50%; background: white; }

/* ✅ 5️⃣ Button Selectors */
.button, submit { 
    display: inline-flex; justify-content: center; align-items: center; gap: 8px; 
    padding: 10px 24px; font-size: 15px; font-weight: 500; border-radius: var(--border-radius-full); 
    cursor: pointer; border: none; transition: 0.2s; text-decoration: none; 
}
.button:hover { transform: translateY(-1px); box-shadow: var(--md-elevation-1); }
.button:active { transform: translateY(0); box-shadow: none; }

.button-primary { background: var(--md-primary); color: var(--md-on-primary); }
.button-secondary { background: var(--md-primary-container); color: var(--md-primary); }
.button-accent { background: var(--md-accent); color: white; }
.button-danger { background: var(--md-danger); color: white; }
.button-success { background: var(--md-success); color: white; }
.button-warning { background: var(--md-warning); color: white; }
.button-info { background: var(--md-info); color: white; }
.button-hide { display: none; }

.button-sm { padding: 6px 16px; font-size: 13px; }
.button-lg { padding: 14px 32px; font-size: 16px; }

/* ✅ 6️⃣ Fieldset & Dialog */
.fieldset { border: 1px solid var(--md-outline-variant); border-radius: var(--border-radius-md); padding: 24px; margin-bottom: 24px; }
.fieldset legend { font-weight: 500; color: var(--md-primary); padding: 0 8px; }

.dialog-backdrop { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.4); display: none; justify-content: center; align-items: center; z-index: 1000; }
.dialog-backdrop.active { display: flex; }
.dialog { background: var(--md-surface-container); border-radius: var(--border-radius-xl); padding: 24px; width: 90%; max-width: 400px; box-shadow: var(--md-elevation-3); animation: scaleUp 0.3s ease; }
@keyframes scaleUp { from { transform: scale(0.9); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.dialog-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.dialog-title { font-size: 20px; margin: 0; }
.dialog-close { background: none; border: none; font-size: 24px; cursor: pointer; color: var(--md-text-variant); }
.dialog-body { color: var(--md-text-variant); margin-bottom: 24px; }
.dialog-footer { display: flex; justify-content: flex-end; gap: 12px; }

/* ✅ 7️⃣ Details & Summary */
.details { background: var(--md-surface-container); border: 1px solid var(--md-outline-variant); border-radius: var(--border-radius-md); margin-bottom: 12px; padding: 12px 16px; }
.summary { font-weight: 500; cursor: pointer; outline: none; list-style: none; display: flex; justify-content: space-between; }
.details-content { padding-top: 12px; color: var(--md-text-variant); }

/* ✅ 8️⃣ Media Elements */
.media-container { border-radius: var(--border-radius-md); overflow: hidden; }
.img, .video, .iframe { max-width: 100%; height: auto; display: block; border-radius: var(--border-radius-md); }
.audio { width: 100%; outline: none; }

/* ✅ 9️⃣ Text Elements */
.blockquote { border-left: 4px solid var(--md-primary); padding-left: 16px; margin: 16px 0; font-style: italic; color: var(--md-text-variant); }
.blockquote p:last-child { margin-bottom: 0; }
.em { font-style: italic; }
.strong { font-weight: 700; }
.span { color: inherit; }
.pre { background: var(--md-surface-variant); padding: 16px; border-radius: var(--border-radius-sm); overflow-x: auto; font-family: monospace; }
.code { background: var(--md-surface-variant); padding: 2px 6px; border-radius: 4px; font-family: monospace; font-size: 0.9em; color: var(--md-danger); }

/* ✅ 🔟 Lists */
.ul, .ol { padding-left: 24px; margin-bottom: 16px; color: var(--md-text-variant); }
.li { margin-bottom: 8px; }
.dl { margin-bottom: 16px; }
.dt { font-weight: 700; margin-top: 12px; }
.dd { margin-left: 16px; color: var(--md-text-variant); }

/* ✅ 1️⃣1️⃣ Tables */
.table-container { overflow-x: auto; margin-bottom: 24px; border-radius: var(--border-radius-md); border: 1px solid var(--md-outline-variant); }
.table { width: 100%; border-collapse: collapse; text-align: left; }
.table th, .table td { padding: 14px 16px; border-bottom: 1px solid var(--md-outline-variant); }
.table th { background: var(--md-surface-variant); font-weight: 500; }
.table tr:hover { background: rgba(0,0,0,0.02); }
.table thead { border-bottom: 2px solid var(--md-outline); }
.table tfoot { font-weight: 700; background: var(--md-surface-variant); }

/* ✅ 1️⃣2️⃣ Links */
.a { color: var(--md-primary); text-decoration: none; position: relative; font-weight: 500; }
.a:hover { color: var(--md-on-primary-container); }
.a:after { content: ''; position: absolute; width: 0; height: 1px; bottom: 0; left: 0; background: currentColor; transition: width 0.3s; }
.a:hover:after { width: 100%; }

/* ✅ 1️⃣3️⃣ File Upload */
.file-upload { display: flex; flex-direction: column; gap: 16px; margin-bottom: 24px; }
.file-upload-label { border: 2px dashed var(--md-outline); border-radius: var(--border-radius-lg); padding: 40px 20px; text-align: center; cursor: pointer; color: var(--md-text-variant); transition: 0.2s; background: var(--md-surface-container); }
.file-upload-label:hover { border-color: var(--md-primary); background: var(--md-primary-container); color: var(--md-primary); }
.file-upload-input { display: none; }
.file-upload-preview { display: none; background: var(--md-surface-container); padding: 16px; border-radius: var(--border-radius-md); border: 1px solid var(--md-outline-variant); align-items: center; gap: 16px; }
.file-upload-preview.active { display: flex; }
.file-upload-name { font-weight: 500; flex-grow: 1; word-break: break-all; }
.file-upload-size { font-size: 13px; color: var(--md-text-variant); }
.file-upload-remove { color: var(--md-danger); cursor: pointer; font-weight: 500; }

/* ✅ 1️⃣4️⃣ FAQ Accordion */
.faq-container { display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--md-surface-container); border: 1px solid var(--md-outline-variant); border-radius: var(--border-radius-md); overflow: hidden; }
.faq-question { padding: 16px; font-weight: 500; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.faq-question:after { content: '+'; font-size: 20px; transition: 0.2s; }
.faq-item.active .faq-question:after { transform: rotate(45deg); color: var(--md-primary); }
.faq-answer { padding: 0 16px; max-height: 0; overflow: hidden; transition: 0.3s ease; color: var(--md-text-variant); }
.faq-item.active .faq-answer { padding: 0 16px 16px; max-height: 500px; }

/* ✅ 1️⃣5️⃣ Header & Navigation */
.header { background: var(--md-surface-container); border-bottom: 1px solid var(--md-outline-variant); position: sticky; top: 0; z-index: 100; padding: 16px 20px; display: flex; justify-content: space-between; align-items: center; }
.nav { display: flex; gap: 24px; }
.nav-link { color: var(--md-text-variant); text-decoration: none; font-weight: 500; transition: 0.2s; }
.nav-link:hover { color: var(--md-primary); }

/* ✅ 1️⃣6️⃣ Footer */
.footer { background: var(--md-surface-container); padding: 24px 20px; text-align: center; border-top: 1px solid var(--md-outline-variant); color: var(--md-text-variant); font-size: 14px; margin-top: auto; }

/* ✅ 1️⃣7️⃣ Components */
.card { background: var(--md-surface-container); border-radius: var(--border-radius-lg); padding: 24px; box-shadow: var(--md-elevation-1); border: 1px solid var(--md-outline-variant); transition: 0.2s; }
.card:hover { box-shadow: var(--md-elevation-2); transform: translateY(-2px); }

.progress-bar { width: 100%; height: 8px; background: var(--md-surface-variant); border-radius: 4px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--md-primary); width: 0%; transition: width 0.3s; }

.tooltip { position: relative; cursor: pointer; }
.tooltip-text { visibility: hidden; background: var(--md-text); color: white; text-align: center; padding: 6px 12px; border-radius: 4px; position: absolute; z-index: 1; bottom: 125%; left: 50%; transform: translateX(-50%); font-size: 12px; white-space: nowrap; opacity: 0; transition: 0.2s; }
.tooltip:hover .tooltip-text { visibility: visible; opacity: 1; }

.spinner-container { display: flex; justify-content: center; align-items: center; padding: 20px; }
.spinner { width: 40px; height: 40px; border: 4px solid var(--md-surface-variant); border-top: 4px solid var(--md-primary); border-radius: 50%; animation: spin 1s linear infinite; }

.tag { background: var(--md-primary-container); color: var(--md-on-primary-container); padding: 4px 12px; border-radius: var(--border-radius-sm); font-size: 13px; font-weight: 500; display: inline-block; }

/* ✅ 1️⃣8️⃣ Utility Classes */
.text-center { text-align: center; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; } .mb-4 { margin-bottom: 32px; } .mb-5 { margin-bottom: 48px; }
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; } .mt-4 { margin-top: 32px; } .mt-5 { margin-top: 48px; }

/* ✅ 1️⃣9️⃣ Image Converter Specific */
.preview-container { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; margin-top: 24px; }
.preview-item { background: var(--md-surface-container); border: 1px solid var(--md-outline-variant); border-radius: var(--border-radius-md); overflow: hidden; display: flex; flex-direction: column; }
.preview-image { width: 100%; height: 180px; object-fit: contain; background: var(--md-surface-variant); border-bottom: 1px solid var(--md-outline-variant); }
.preview-info { padding: 16px; flex-grow: 1; }
.preview-info .file-name { font-weight: 500; font-size: 14px; margin-bottom: 8px; word-break: break-all; }
.preview-info .size-info { font-size: 12px; color: var(--md-text-variant); display: flex; justify-content: space-between; }
.preview-info .new-size { color: var(--md-success); font-weight: 500; }
.preview-actions { display: flex; padding: 12px 16px; border-top: 1px solid var(--md-outline-variant); gap: 12px; background: #f8f9fa; }
.action-button { flex: 1; display: flex; justify-content: center; align-items: center; padding: 8px; border-radius: var(--border-radius-sm); border: 1px solid var(--md-outline); background: white; cursor: pointer; transition: 0.2s; }
.action-button:hover { background: var(--md-primary-container); color: var(--md-primary); border-color: var(--md-primary); }
.action-button svg { width: 18px; height: 18px; fill: currentColor; }
.download-all-container { text-align: center; margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--md-outline-variant); }
.overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(255,255,255,0.9); display: none; justify-content: center; align-items: center; z-index: 10; flex-direction: column; border-radius: inherit; }
.overlay.active { display: flex; }
.hidden { display: none !important; }
.quality-control { margin-top: 16px; }
.quality-value { font-weight: 700; color: var(--md-primary); float: right; }

/* ✅ 2️⃣0️⃣ Range Input Styling */
input[type="range"] { -webkit-appearance: none; width: 100%; height: 6px; background: var(--md-surface-variant); border-radius: 4px; outline: none; margin: 12px 0; }
input[type="range"]:hover { background: var(--md-outline-variant); }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 20px; height: 20px; border-radius: 50%; background: var(--md-primary); cursor: pointer; transition: 0.2s; box-shadow: 0 1px 3px rgba(0,0,0,0.3); }
input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.1); box-shadow: 0 0 0 8px var(--md-primary-container); }
input[type="range"]::-moz-range-thumb { width: 20px; height: 20px; border-radius: 50%; background: var(--md-primary); cursor: pointer; border: none; transition: 0.2s; }

/* ✅ 2️⃣1️⃣ Toggle Switches (M3 Switch) */
.switch { position: relative; display: inline-block; width: 52px; height: 32px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: var(--md-surface-variant); transition: .3s; border-radius: 32px; border: 2px solid var(--md-outline); }
.slider:before { position: absolute; content: ""; height: 16px; width: 16px; left: 6px; bottom: 6px; background-color: var(--md-outline); transition: .3s; border-radius: 50%; }
.switch input:checked + .slider { background-color: var(--md-primary); border-color: var(--md-primary); }
.switch input:checked + .slider:before { transform: translateX(20px); background-color: var(--md-on-primary); height: 24px; width: 24px; bottom: 2px; }

/* ✅ 2️⃣2️⃣ Tabs & Navigation Tab */
.tabs-container { display: flex; border-bottom: 1px solid var(--md-outline-variant); margin-bottom: 20px; overflow-x: auto; }
.tab-button { background: none; border: none; padding: 14px 24px; font-size: 14px; font-weight: 500; color: var(--md-text-variant); cursor: pointer; position: relative; transition: 0.2s; white-space: nowrap; }
.tab-button:hover { background: rgba(0,0,0,0.04); color: var(--md-text); }
.tab-button.tab-active { color: var(--md-primary); }
.tab-button.tab-active::after { content: ''; position: absolute; bottom: 0; left: 0; width: 100%; height: 3px; background-color: var(--md-primary); border-radius: 3px 3px 0 0; }
.tab-content { display: none; padding: 16px 0; animation: fadeIn 0.3s ease; }
.tab-content.active { display: block; }

/* ✅ 2️⃣3️⃣ Snackbars & Toast Notifications */
.snackbar-container { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); z-index: 2000; display: flex; flex-direction: column; gap: 8px; pointer-events: none; }
.snackbar { background-color: #313033; color: #f4eff4; min-height: 48px; padding: 14px 16px; border-radius: 4px; box-shadow: var(--md-elevation-3); display: flex; align-items: center; justify-content: space-between; gap: 16px; min-width: 300px; max-width: 600px; font-size: 14px; pointer-events: auto; animation: slideUp 0.3s ease; }
@keyframes slideUp { from { transform: translateY(100%); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.snackbar-close { color: #d0bcff; font-weight: 500; background: none; border: none; cursor: pointer; text-transform: uppercase; padding: 0 8px; }

/* ✅ 2️⃣4️⃣ Badges (Notification Dots) */
.badge-container { position: relative; display: inline-flex; }
.badge { position: absolute; top: -4px; right: -4px; background-color: var(--md-danger); color: white; border-radius: 12px; padding: 0 6px; font-size: 11px; font-weight: 700; min-width: 18px; height: 18px; display: flex; justify-content: center; align-items: center; border: 2px solid var(--md-surface-container); }
.badge-dot { position: absolute; top: 0; right: 0; width: 10px; height: 10px; background-color: var(--md-danger); border-radius: 50%; border: 2px solid var(--md-surface-container); }

/* ✅ 2️⃣5️⃣ Navigation Drawer (Sidebar) */
.drawer-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100vh; background: rgba(0,0,0,0.4); z-index: 1000; opacity: 0; visibility: hidden; transition: 0.3s ease; }
.drawer-overlay.active { opacity: 1; visibility: visible; }
.drawer { position: fixed; top: 0; left: 0; width: 280px; height: 100vh; background: var(--md-surface-container); z-index: 1001; transform: translateX(-100%); transition: transform 0.3s cubic-bezier(0.4, 0.0, 0.2, 1); border-radius: 0 16px 16px 0; box-shadow: var(--md-elevation-2); display: flex; flex-direction: column; }
.drawer.drawer-open { transform: translateX(0); }
.drawer-item { padding: 16px 24px; display: flex; align-items: center; gap: 12px; font-weight: 500; color: var(--md-text-variant); cursor: pointer; transition: 0.2s; border-radius: 28px; margin: 4px 12px; }
.drawer-item:hover { background: rgba(0,0,0,0.04); }
.drawer-item.active { background: var(--md-primary-container); color: var(--md-on-primary-container); }

/* ✅ 2️⃣6️⃣ Dropdown Menus (Popovers) */
.dropdown { position: relative; display: inline-block; }
.dropdown-menu { position: absolute; right: 0; top: 110%; background: var(--md-surface-container); border-radius: var(--border-radius-sm); box-shadow: var(--md-elevation-2); border: 1px solid var(--md-outline-variant); min-width: 160px; z-index: 100; display: none; flex-direction: column; overflow: hidden; padding: 8px 0; }
.dropdown-menu.show { display: flex; animation: fadeIn 0.2s ease; }
.dropdown-item { padding: 12px 16px; font-size: 14px; color: var(--md-text); text-decoration: none; cursor: pointer; display: flex; align-items: center; gap: 12px; transition: 0.2s; border: none; background: none; width: 100%; text-align: left; }
.dropdown-item:hover { background: var(--md-surface-variant); }

/* ✅ 2️⃣7️⃣ Skeleton Loaders (Placeholders) */
.skeleton { background: #e0e0e0; background-image: linear-gradient(90deg, #e0e0e0 0px, #f5f5f5 40px, #e0e0e0 80px); background-size: 200px 100%; animation: shimmer 1.5s infinite linear; border-radius: 4px; }
@keyframes shimmer { 0% { background-position: -200px 0; } 100% { background-position: 200px 0; } }
.skeleton-text { height: 16px; margin-bottom: 8px; width: 100%; }
.skeleton-text.short { width: 60%; }
.skeleton-image { height: 200px; width: 100%; border-radius: var(--border-radius-md); }

/* ✅ 2️⃣8️⃣ Bottom Navigation Bar (For Mobile) */
.bottom-nav { position: fixed; bottom: 0; left: 0; width: 100%; background: var(--md-surface-container); border-top: 1px solid var(--md-outline-variant); display: flex; justify-content: space-around; align-items: center; height: 80px; z-index: 99; padding-bottom: env(safe-area-inset-bottom); }
.bottom-nav-item { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; flex: 1; color: var(--md-text-variant); cursor: pointer; text-decoration: none; font-size: 12px; font-weight: 500; transition: 0.2s; height: 100%; }
.bottom-nav-icon { width: 64px; height: 32px; display: flex; justify-content: center; align-items: center; border-radius: 16px; transition: 0.2s; }
.bottom-nav-item.active { color: var(--md-text); }
.bottom-nav-item.active .bottom-nav-icon { background: var(--md-primary-container); color: var(--md-on-primary-container); }

/* ✅ 2️⃣9️⃣ Pagination */
.pagination { display: flex; justify-content: center; align-items: center; gap: 8px; margin: 24px 0; list-style: none; }
.page-item { display: inline-block; }
.page-link { width: 40px; height: 40px; display: flex; justify-content: center; align-items: center; border-radius: 50%; border: 1px solid var(--md-outline-variant); color: var(--md-text); text-decoration: none; font-weight: 500; transition: 0.2s; }
.page-link:hover { background: var(--md-surface-variant); }
.page-item.page-active .page-link { background: var(--md-primary); color: var(--md-on-primary); border-color: var(--md-primary); }

/* ✅ 3️⃣0️⃣ Dividers (Separators) */
.divider { height: 1px; width: 100%; background-color: var(--md-outline-variant); margin: 24px 0; border: none; }
.hr-text { display: flex; align-items: center; text-align: center; color: var(--md-text-variant); font-size: 14px; font-weight: 500; margin: 24px 0; }
.hr-text::before, .hr-text::after { content: ''; flex: 1; border-bottom: 1px solid var(--md-outline-variant); }
.hr-text::before { margin-right: 16px; }
.hr-text::after { margin-left: 16px; }



:root {
            --md-primary: #1a73e8;
            --md-surface: #f8f9fa;
            --md-surface-container: #ffffff;
            --md-text: #202124;
            --md-text-variant: #5f6368;
            --md-border: #dadce0;
            --md-chip-bg: #e8f0fe;
            --google-red: #EA4335;
            --google-yellow: #FBBC05;
        }

        * { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Google Sans', 'Roboto', sans-serif; }

        body { 
            background-color: var(--md-surface); 
            color: var(--md-text); 
            min-height: 100vh; 
            display: flex; 
            flex-direction: column; 
        }

        /* --- Top App Bar --- */
        .top-app-bar {
            height: 64px; display: flex; align-items: center; padding: 0 16px;
            background: var(--md-surface-container); position: sticky; top: 0; z-index: 100;
            border-bottom: 1px solid var(--md-border); justify-content: space-between;
        }
        .header-left { display: flex; align-items: center; gap: 12px; }
        
        .icon-btn { 
            width: 48px; height: 48px; border-radius: 50%; border: none; background: transparent;
            cursor: pointer; display: flex; justify-content: center; align-items: center; transition: 0.2s; color: var(--md-text-variant);
        }
        .icon-btn:hover { background: rgba(60,64,67,0.08); }
        
        /* Bold Red Logo */
        .brand-logo { 
            font-size: 26px; font-weight: 800; color: var(--google-red); 
            letter-spacing: -0.5px; user-select: none; 
        }

        /* --- Three Dot Header Menu --- */
        .header-actions { position: relative; }
        .dropdown-menu {
            position: absolute; right: 8px; top: 56px; background: white; border: 1px solid var(--md-border);
            border-radius: 8px; box-shadow: 0 4px 12px rgba(0,0,0,0.1); display: none; flex-direction: column;
            min-width: 180px; z-index: 200; overflow: hidden;
        }
        .dropdown-menu.show { display: flex; }
        .dropdown-menu a { padding: 14px 16px; text-decoration: none; color: var(--md-text); font-size: 14px; transition: 0.2s; font-weight: 500; }
        .dropdown-menu a:hover { background: #f1f3f4; color: var(--md-primary); }

        /* --- Sidebar Navigation --- */
        .nav-drawer {
            position: fixed; top: 0; left: 0; width: 280px; height: 100vh;
            background: var(--md-surface-container); z-index: 1000;
            transform: translateX(-100%); transition: transform 0.25s cubic-bezier(0.4, 0.0, 0.2, 1);
            border-radius: 0 16px 16px 0; box-shadow: 0 4px 15px rgba(0,0,0,0.1); display: flex; flex-direction: column;
        }
        .nav-drawer.open { transform: translateX(0); }
        .drawer-header { padding: 20px; border-bottom: 1px solid var(--md-border); display: flex; align-items: center; }
        .drawer-links { list-style: none; padding: 12px 8px; flex-grow: 1; }
        .drawer-links li {
            padding: 0 16px; height: 48px; display: flex; align-items: center; gap: 18px;
            border-radius: 24px; cursor: pointer; font-size: 14px; font-weight: 500; color: var(--md-text);
            transition: 0.2s; margin-bottom: 4px;
        }
        .drawer-links li svg { fill: var(--md-text-variant); width: 24px; height: 24px; }
        .drawer-links li:hover { background: #f1f3f4; }
        .drawer-links li.active { background: var(--md-chip-bg); color: var(--md-primary); }
        .drawer-links li.active svg { fill: var(--md-primary); }

        /* Overlay Background */
        .overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100vh; background: rgba(32,33,36,0.4); z-index: 999; opacity: 0; visibility: hidden; transition: 0.3s ease; }
        .overlay.open { opacity: 1; visibility: visible; }

        /* --- Main Content Area (Blank Space) --- */
        .main-container { 
            padding: 20px; 
            max-width: 1000px; 
            margin: 0 auto; 
            width: 100%; 
            flex-grow: 1; 
        }

        /* --- Footer --- */
        footer { 
            text-align: center; 
            padding: 24px; 
            border-top: 1px solid var(--md-border); 
            color: var(--md-text-variant); 
            font-size: 14px; 
            background: var(--md-surface-container); 
            margin-top: auto; 
        }