:root {
    --bg-main: #090d16;
    --bg-card: rgba(17, 22, 37, 0.65);
    --card-bg: var(--bg-card);
    --bg-card-hover: rgba(22, 30, 52, 0.85);
    --border-color: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(139, 92, 246, 0.4);
    --text-main: #f3f4f6;
    --text-color: var(--text-main);
    --text-muted: #9ca3af;
    --primary: #8b5cf6;
    --primary-glow: rgba(139, 92, 246, 0.25);
    --secondary: #ec4899;
    --accent: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.25);
    --success: #10b981;
    --danger: #ef4444;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --shadow-main: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --card-bg: var(--bg-card);
    --bg-card-hover: #f1f5f9;
    --border-color: #cbd5e1;
    --border-hover: rgba(109, 40, 217, 0.4);
    --text-main: #0f172a;
    --text-color: var(--text-main);
    --text-muted: #475569;
    --primary: #6d28d9;
    --primary-glow: rgba(109, 40, 217, 0.15);
    --secondary: #db2777;
    --accent: #2563eb;
    --accent-glow: rgba(37, 99, 235, 0.1);
    --shadow-main: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] header {
    background: rgba(255, 255, 255, 0.8) !important;
    border-bottom: 1px solid #e2e8f0;
}

[data-theme="light"] .hero::before {
    background: radial-gradient(circle, rgba(109, 40, 217, 0.06) 0%, rgba(219, 39, 119, 0.02) 50%, transparent 100%);
}

[data-theme="light"] .hero-title {
    background: linear-gradient(135deg, #0f172a 40%, #6d28d9 100%) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
}

[data-theme="light"] .tool-icon-wrapper {
    background: rgba(109, 40, 217, 0.06) !important;
}

[data-theme="light"] .form-control {
    background: #ffffff !important;
    border-color: #cbd5e1 !important;
    color: #0f172a !important;
}

[data-theme="light"] .form-control:focus {
    border-color: #6d28d9 !important;
    box-shadow: 0 0 0 3px rgba(109, 40, 217, 0.15) !important;
}

[data-theme="light"] .sidebar-box {
    background: #ffffff !important;
    border-color: #e2e8f0 !important;
}

[data-theme="light"] .related-tool-item {
    background: #f8fafc !important;
    border-color: #e2e8f0 !important;
}

[data-theme="light"] .related-tool-item:hover {
    background: #f1f5f9 !important;
    border-color: rgba(109, 40, 217, 0.3) !important;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: var(--font-family);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* Layout Elements */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background: rgba(9, 13, 22, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 16px 0;
    transition: var(--transition);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-link {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

.logo-icon {
    color: var(--primary);
    filter: drop-shadow(0 0 8px var(--primary-glow));
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--text-main);
}

.nav-btn {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    padding: 8px 18px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px var(--accent-glow);
    transition: var(--transition);
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--primary-glow);
}

/* Hero Section */
.hero {
    padding: 80px 0 60px 0;
    text-align: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 300px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, rgba(236, 72, 153, 0.05) 50%, transparent 100%);
    z-index: -1;
    pointer-events: none;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #ffffff 40%, #a78bfa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 35px auto;
}

/* Search bar styling */
.search-container {
    max-width: 550px;
    margin: 0 auto;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 16px 20px 16px 50px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
    box-shadow: var(--shadow-main);
    backdrop-filter: blur(10px);
}

.search-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
}

.search-icon {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
    transition: var(--transition);
}

.search-input:focus + .search-icon {
    color: var(--primary);
}

/* Tools Dashboard / Main Grid */
.main-content {
    flex: 1;
    padding-bottom: 80px;
}

.category-section {
    margin-bottom: 50px;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 25px;
    border-left: 4px solid var(--primary);
    padding-left: 12px;
}

.category-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.category-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-main);
    backdrop-filter: blur(10px);
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-glow), transparent);
    opacity: 0;
    transition: var(--transition);
    z-index: -1;
}

.tool-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-hover);
    box-shadow: 0 12px 40px rgba(139, 92, 246, 0.15);
}

.tool-card:hover::before {
    opacity: 1;
}

.tool-icon-wrapper {
    background: rgba(255, 255, 255, 0.03);
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    margin-bottom: 18px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.tool-card:hover .tool-icon-wrapper {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 0 12px var(--primary-glow);
}

.tool-name {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
    transition: var(--transition);
}

.tool-card:hover .tool-name {
    color: var(--primary);
}

.tool-description {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.45;
    flex: 1;
}

.tool-card-footer {
    margin-top: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.tool-views {
    display: flex;
    align-items: center;
    gap: 4px;
}

.tool-action-link {
    color: var(--primary);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: var(--transition);
}

.tool-card:hover .tool-action-link {
    color: var(--secondary);
    gap: 8px;
}

/* Tool Execution View (Single Tool Page) */
.tool-page-container {
    padding: 40px 0 80px 0;
}

.tool-page-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

@media (max-width: 992px) {
    .tool-page-layout {
        grid-template-columns: 1fr;
    }
}

.tool-header-meta {
    margin-bottom: 30px;
}

.tool-breadcrumb {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.tool-breadcrumb a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
}

.tool-breadcrumb a:hover {
    color: var(--primary);
}

.tool-page-title-row {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 10px;
}

.tool-page-icon {
    color: var(--primary);
    filter: drop-shadow(0 0 5px var(--primary-glow));
}

.tool-page-title {
    font-size: 2rem;
    font-weight: 800;
}

.tool-page-description {
    color: var(--text-muted);
    font-size: 1rem;
    max-width: 800px;
}

.tool-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-main);
    backdrop-filter: blur(10px);
}

/* Common form elements for tools */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 14px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition);
    font-family: inherit;
}

select.form-control option {
    background-color: #111625;
    color: #f3f4f6;
}

.form-control:focus {
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.04);
    box-shadow: 0 0 10px var(--primary-glow);
}

textarea.form-control {
    resize: vertical;
    min-height: 150px;
    font-family: monospace;
}

.btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 20px 0;
}

.btn {
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--primary-glow);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

[data-theme="light"] .btn-secondary {
    background: #f1f5f9;
    color: #0f172a;
    border-color: #cbd5e1;
}

[data-theme="light"] .btn-secondary:hover {
    background: #e2e8f0;
}

.btn-success {
    background: var(--success);
    color: #fff;
}

.btn-success:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
}

.btn-danger {
    background: var(--danger);
    color: #fff;
}

.btn-danger:hover {
    filter: brightness(1.1);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* Sidebar styling for single tool view */
.tool-sidebar {
    display: none !important;
}

.sidebar-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-main);
}

.sidebar-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 18px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.related-tools-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.related-tool-item {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.related-tool-item:hover {
    background: rgba(255, 255, 255, 0.03);
    color: var(--primary);
}

.related-tool-icon {
    color: var(--primary);
}

.related-tool-name {
    font-size: 0.9rem;
    font-weight: 600;
}

/* Footer Section */
footer {
    background: rgba(9, 13, 22, 0.9);
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
    text-align: center;
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-top: auto;
}

.footer-links {
    margin-bottom: 15px;
    display: flex;
    justify-content: center;
    gap: 20px;
}

.footer-link {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--primary);
}

/* Specific UI configurations for some tools */
.output-box-container {
    position: relative;
}

.copy-btn {
    position: absolute;
    right: 10px;
    top: 10px;
    padding: 6px 12px;
    font-size: 0.78rem;
    border-radius: var(--radius-sm);
    z-index: 10;
}

.character-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 10px;
}

.stat-chip {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
}

.stat-chip span {
    font-weight: 700;
    color: var(--primary);
}

/* Color Picker Tool custom elements */
.color-picker-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 576px) {
    .color-picker-grid {
        grid-template-columns: 1fr;
    }
}

.color-preview-card {
    height: 100%;
    min-height: 150px;
    border-radius: var(--radius-md);
    border: 2px solid var(--border-color);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    font-weight: 700;
}

.color-values-row {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Image to Base64 dropzone */
.dropzone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: 40px 20px;
    text-align: center;
    background: rgba(255, 255, 255, 0.01);
    cursor: pointer;
    transition: var(--transition);
}

.dropzone:hover, .dropzone.active {
    border-color: var(--primary);
    background: rgba(139, 92, 246, 0.05);
}

.dropzone-icon {
    color: var(--primary);
    margin-bottom: 12px;
}

.image-preview {
    max-width: 150px;
    max-height: 150px;
    margin: 15px auto 0 auto;
    display: block;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

/* Alerts / Messages */
.alert {
    padding: 12px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    margin-bottom: 20px;
    font-weight: 500;
}

.alert-success {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid var(--success);
    color: var(--success);
}

.alert-error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid var(--danger);
    color: var(--danger);
}

/* Admin Specific CSS Rules */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 260px;
    background: #060910;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.admin-logo-wrapper {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.admin-menu {
    list-style: none;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.admin-menu-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.admin-menu-link:hover, .admin-menu-link.active {
    background: rgba(139, 92, 246, 0.1);
    color: var(--primary);
}

.admin-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #090d16;
}

.admin-navbar {
    height: 70px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
}

.admin-content-area {
    padding: 30px;
    flex: 1;
    overflow-y: auto;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: rgba(139, 92, 246, 0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-title {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.stat-value {
    font-size: 1.6rem;
    font-weight: 800;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
    text-align: left;
}

.admin-table th, .admin-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
}

.admin-table th {
    font-weight: 700;
    color: var(--text-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.admin-table td {
    font-size: 0.92rem;
}

.admin-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.01);
}

.badge {
    padding: 4px 8px;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 4px;
    display: inline-block;
}

.badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.badge-primary {
    background: rgba(139, 92, 246, 0.15);
    color: var(--primary);
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.modal-content {
    background: #0c101c;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    width: 100%;
    max-width: 500px;
    padding: 30px;
    box-shadow: var(--shadow-main);
    position: relative;
}

.modal-header {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.modal-close {
    position: absolute;
    right: 20px;
    top: 20px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
}

.modal-close:hover {
    color: var(--text-main);
}

/* Theme Toggle Button Styles */
.theme-toggle-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    cursor: pointer;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.theme-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary);
    transform: scale(1.05);
}
[data-theme="light"] .theme-toggle-btn {
    background: rgba(0, 0, 0, 0.03);
}
[data-theme="light"] .theme-toggle-btn:hover {
    background: rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .moon-icon { display: block; }
[data-theme="light"] .sun-icon { display: none; }
[data-theme="dark"] .moon-icon { display: none; }
[data-theme="dark"] .sun-icon { display: block; }