/* ===== CSS Variables ===== */
:root {
    --deep-blue: #002467;
    --lavender: #8F7FE6;
    --teal: #2DD1C8;
    --white: #FFFFFF;
    --bg-main: #FFFFFF;
    --bg-card: #FFFFFF;
    --gradient: linear-gradient(135deg, var(--lavender), var(--teal));
    
    --text-primary: var(--deep-blue);
    --text-secondary: rgba(0, 36, 103, 0.6);
    --text-muted: rgba(0, 36, 103, 0.4);
    
    --border-color: rgba(0, 36, 103, 0.12);
    --border-hover: var(--lavender);
    --border-focus: var(--teal);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    
    --transition: 200ms ease;
}

/* ===== Dark Theme ===== */
[data-theme="dark"] {
    --deep-blue: #E8EAED;
    --bg-main: #0D1117;
    --bg-card: #161B22;
    --white: #161B22;
    
    --text-primary: #E8EAED;
    --text-secondary: rgba(232, 234, 237, 0.7);
    --text-muted: rgba(232, 234, 237, 0.5);
    
    --border-color: rgba(255, 255, 255, 0.12);
}

/* ===== Reset ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* ===== App Layout ===== */
.app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ===== Header ===== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
    padding: 0.875rem 1.5rem;
}

.header-content {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-img {
    height: 32px;
    width: auto;
}

.logo-divider {
    width: 1px;
    height: 24px;
    background: var(--border-color);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--deep-blue);
}

.header-links {
    display: flex;
    gap: 0.75rem;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    font-family: inherit;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient);
    color: white;
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-outline:hover {
    border-color: var(--lavender);
    background: rgba(143, 127, 230, 0.05);
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

/* Theme Toggle Button */
.btn-icon {
    padding: 0.5rem;
    background: transparent;
    border-color: var(--border-color);
}

.btn-icon:hover {
    border-color: var(--lavender);
    background: rgba(143, 127, 230, 0.05);
}

.btn-icon svg {
    width: 20px;
    height: 20px;
}

.btn-icon .icon-moon {
    display: none;
}

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

[data-theme="dark"] .btn-icon .icon-moon {
    display: block;
}

[data-theme="dark"] .btn-icon {
    color: #E8EAED;
}

/* Dark mode icon inversion */
[data-theme="dark"] .icon-card img,
[data-theme="dark"] .modal-icon-display img,
[data-theme="dark"] .variant-btn img {
    filter: invert(1);
}

/* ===== Layout (Sidebar + Main) ===== */
.layout {
    display: flex;
    flex: 1;
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
}

/* ===== Sidebar ===== */
.sidebar {
    width: 220px;
    flex-shrink: 0;
    padding: 1.5rem 1.25rem;
    border-right: 1px solid var(--border-color);
    position: fixed;
    top: 57px;
    left: 0;
    bottom: 0;
    background: var(--white);
    z-index: 50;
}

.sidebar-section {
    margin-bottom: 1.75rem;
}

.sidebar-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 0.875rem;
    padding-left: 0.25rem;
}

.sidebar-divider {
    height: 1px;
    background: var(--border-color);
    margin: 1.25rem 0;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.filter-btn {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
    font-family: inherit;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition);
    text-align: left;
    position: relative;
}

.filter-btn::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: var(--gradient);
    border-radius: 2px;
    transition: height var(--transition);
}

.filter-btn:hover {
    background: rgba(0, 36, 103, 0.04);
}

.filter-btn.active {
    background: rgba(143, 127, 230, 0.1);
    color: var(--lavender);
    font-weight: 600;
}

.filter-btn.active::before {
    height: 18px;
}

/* Random Button */
.btn-random {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--gradient);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 0.8125rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-random:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(143, 127, 230, 0.4);
}

.btn-random svg {
    width: 16px;
    height: 16px;
}

/* Install Commands */
.install-commands {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.install-cmd {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
}

.install-cmd:hover {
    border-color: var(--lavender);
}

.install-cmd code {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.6875rem;
    color: var(--text-primary);
}

.install-cmd svg {
    width: 14px;
    height: 14px;
    color: var(--text-muted);
    transition: color var(--transition);
}

.install-cmd:hover svg {
    color: var(--lavender);
}

/* ===== Main Content ===== */
.main {
    flex: 1;
    padding: 1.5rem 2rem;
    position: relative;
    overflow: hidden;
    margin-left: 220px;
}

/* ===== Decorative Blobs ===== */
.blob {
    position: absolute;
    border-radius: 50%;
    background: var(--gradient);
    filter: blur(100px);
    opacity: 0.15;
    pointer-events: none;
    z-index: 0;
}

.blob-1 {
    width: 400px;
    height: 400px;
    top: -100px;
    right: -100px;
}

.blob-2 {
    width: 300px;
    height: 300px;
    bottom: 100px;
    left: -100px;
}

/* ===== Search ===== */
.search-container {
    position: fixed;
    top: 57px;
    left: 220px;
    right: 0;
    padding: 1.5rem 2rem;
    z-index: 10;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 36, 103, 0.1);
    border-left: none;
    border-right: none;
    border-top: none;
}

[data-theme="dark"] .search-container {
    background: rgba(13, 17, 23, 0.7);
    border-color: rgba(255, 255, 255, 0.1);
}

.search-icon {
    position: absolute;
    left: calc(2rem + 1rem);
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--text-muted);
}

.search-input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    font-size: 1rem;
    font-family: inherit;
    background: var(--white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    transition: all var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--teal);
}

.search-input::placeholder {
    color: var(--text-muted);
}

/* ===== Results Info ===== */
.results-info {
    margin-top: 70px;
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    z-index: 1;
    position: relative;
}

/* ===== Icons Grid ===== */
.icons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 0.75rem;
    position: relative;
    z-index: 1;
}

.icon-card {
    aspect-ratio: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background: var(--white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition);
}

.icon-card:hover {
    border-color: var(--lavender);
    transform: translateY(-2px);
}

.icon-card img {
    width: 28px;
    height: 28px;
    transition: transform var(--transition);
}

.icon-card:hover img {
    transform: scale(1.1);
}

.icon-card .icon-name {
    display: none;
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
    position: relative;
    z-index: 1;
}

.pagination-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition);
}

.pagination-btn:hover:not(:disabled) {
    border-color: var(--lavender);
    color: var(--lavender);
}

.pagination-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pagination-btn svg {
    width: 18px;
    height: 18px;
}

.pagination-pages {
    display: flex;
    gap: 0.25rem;
}

.page-btn {
    min-width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition);
}

.page-btn:hover {
    border-color: var(--lavender);
}

.page-btn.active {
    background: var(--gradient);
    border-color: transparent;
    color: white;
}

.page-ellipsis {
    min-width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
}

/* ===== Footer ===== */
.footer {
    text-align: center;
    padding: 2rem 1.5rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-left: 220px;
}

.footer a {
    color: var(--lavender);
    text-decoration: none;
    font-weight: 500;
}

.footer a:hover {
    text-decoration: underline;
}

.footer-meta {
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.footer-heart {
    width: 16px;
    height: 16px;
    vertical-align: middle;
    margin: 0 2px;
    filter: invert(27%) sepia(94%) saturate(5631%) hue-rotate(352deg) brightness(91%) contrast(124%);
}

/* ===== Modal (Full-Width Flaticon Style) ===== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: none;
}

.modal.active {
    display: flex;
    align-items: stretch;
    justify-content: center;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 36, 103, 0.3);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: absolute;
    inset: 10px;
    background: var(--white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition);
    z-index: 10;
}

.modal-close:hover {
    border-color: var(--lavender);
    color: var(--lavender);
}

.modal-close svg {
    width: 20px;
    height: 20px;
}

.modal-body {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 400px;
    overflow: hidden;
}

/* Modal Left: Icon Preview */
.modal-preview-section {
    display: flex;
    flex-direction: column;
    padding: 2rem;
    border-right: 1px solid var(--border-color);
}

.modal-variants {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.variant-btn {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
}

.variant-btn:hover,
.variant-btn.active {
    border-color: var(--lavender);
}

.variant-btn img {
    width: 24px;
    height: 24px;
}

.modal-icon-display {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-icon-display img {
    width: 160px;
    height: 160px;
    transition: width var(--transition), height var(--transition);
}

/* Size Slider */
.size-slider-container {
    padding: 1rem 2rem;
    text-align: center;
}

.size-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.size-label span {
    color: var(--lavender);
    font-weight: 600;
}

.size-slider {
    width: 100%;
    max-width: 300px;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--border-color);
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

.size-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--gradient);
    border-radius: 50%;
    cursor: pointer;
    transition: transform var(--transition);
}

.size-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.size-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--gradient);
    border-radius: 50%;
    border: none;
    cursor: pointer;
}

.size-ticks {
    display: flex;
    justify-content: space-between;
    max-width: 300px;
    margin: 0.5rem auto 0;
    font-size: 0.625rem;
    color: var(--text-muted);
}

/* Color Picker */
.color-picker-container {
    padding: 1.25rem 2rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.color-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.color-picker-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.color-presets {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.color-preset {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
}

.color-preset:hover {
    transform: scale(1.1);
}

.color-preset.active {
    border-color: var(--text-primary);
    box-shadow: 0 0 0 2px var(--bg-main);
}

.color-custom {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.5rem;
    background: var(--bg-main);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
}

.color-input {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    padding: 0;
    overflow: hidden;
}

.color-input::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-input::-webkit-color-swatch {
    border: none;
    border-radius: var(--radius-sm);
}

.hex-input {
    width: 70px;
    padding: 0.25rem 0.5rem;
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-primary);
    background: transparent;
    border: none;
    text-transform: uppercase;
    outline: none;
}

.hex-input::placeholder {
    color: var(--text-muted);
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
    color: var(--text-muted);
}

.empty-state svg {
    width: 64px;
    height: 64px;
    margin-bottom: 1.5rem;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.empty-state p {
    font-size: 0.875rem;
}

/* Loading Skeleton */
.skeleton-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 0.75rem;
}

.skeleton-card {
    aspect-ratio: 1;
    background: linear-gradient(90deg, var(--border-color) 25%, rgba(143, 127, 230, 0.1) 50%, var(--border-color) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-lg);
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Hover Tooltip */
.icon-card {
    position: relative;
}

.icon-card::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    padding: 0.375rem 0.75rem;
    background: var(--deep-blue);
    color: white;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    pointer-events: none;
    z-index: 100;
}

[data-theme="dark"] .icon-card::after {
    background: #E8EAED;
    color: #0D1117;
}

.icon-card:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-4px);
}

/* Modal Right: Details */
.modal-details-section {
    padding: 2rem;
    overflow-y: auto;
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--deep-blue);
    margin-bottom: 0.75rem;
}

.modal-badges {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.badge {
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: capitalize;
    background: rgba(143, 127, 230, 0.1);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--lavender);
}

.modal-code-blocks {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.code-block-wrapper label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 0.375rem;
}

.code-block {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: rgba(0, 36, 103, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.code-block code {
    flex: 1;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.8125rem;
    color: var(--teal);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.copy-btn {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition);
}

.copy-btn:hover {
    border-color: var(--lavender);
    color: var(--lavender);
}

.copy-btn svg {
    width: 16px;
    height: 16px;
}

.modal-actions {
    display: flex;
    gap: 0.75rem;
}

.modal-actions .btn {
    flex: 1;
    justify-content: center;
}

.modal-actions .btn svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* ===== Toast ===== */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.25rem;
    background: var(--teal);
    border-radius: var(--radius-md);
    color: white;
    font-size: 0.875rem;
    font-weight: 500;
    opacity: 0;
    transition: all var(--transition);
    z-index: 2000;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast svg {
    width: 18px;
    height: 18px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .modal-body {
        grid-template-columns: 1fr;
    }
    
    .modal-preview-section {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding: 1.5rem;
    }
    
    .modal-icon-display img {
        width: 120px;
        height: 120px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        display: none;
    }
    
    .main {
        padding: 1rem;
        margin-left: 0;
    }
    
    .icons-grid {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    }
    
    .header-links .btn span {
        display: none;
    }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 36, 103, 0.2);
}