/* Linear.app Inspired Design System */

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

:root {
    /* Linear Color Palette - Match Main Page */
    --bg-primary: #0c0d0e;
    --bg-secondary: #151618;
    --bg-tertiary: #1c1d1f;
    --bg-card: #1a1b1d;
    --bg-hover: rgba(255, 255, 255, 0.04);
    --bg-active: rgba(255, 255, 255, 0.08);
    
    /* Text Colors */
    --text-primary: #f7f8f8;
    --text-secondary: #a8a9ab;
    --text-tertiary: #6e6f73;
    --text-quaternary: #4a4b4f;
    
    /* Accent Colors */
    --accent-blue: #5e8cff;
    --accent-purple: #a78bfa;
    --accent-green: #34d399;
    --accent-orange: #fb923c;
    --accent-red: #f87171;
    --accent-yellow: #fbbf24;
    
    /* Border Colors */
    --border-default: rgba(255, 255, 255, 0.1);
    --border-strong: rgba(255, 255, 255, 0.15);
    --border-primary: rgba(255, 255, 255, 0.08);
    --border-secondary: rgba(255, 255, 255, 0.05);
    --border-hover: rgba(255, 255, 255, 0.12);
    
    /* Additional Colors */
    --bg-overlay: rgba(255, 255, 255, 0.02);
    --bg-elevated: rgba(255, 255, 255, 0.03);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.5);
    
    /* Typography */
    --font-sans: 'Inter Variable', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', monospace;
    
    /* Spacing */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-7: 32px;
    --space-8: 40px;
    --space-9: 48px;
    --space-10: 64px;
    --space-12: 80px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --radius-2xl: 16px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Styles */
body {
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Lucide Icon Styles */
[data-lucide] {
    display: inline-flex;
    vertical-align: middle;
}

.icon-14 {
    width: 14px;
    height: 14px;
    stroke-width: 2;
}

.icon-16 {
    width: 16px;
    height: 16px;
    stroke-width: 2;
}

.icon-20 {
    width: 20px;
    height: 20px;
    stroke-width: 2;
}

.icon-24 {
    width: 24px;
    height: 24px;
    stroke-width: 1.5;
}

.icon-48 {
    width: 48px;
    height: 48px;
    stroke-width: 1.5;
}

/* Filled icon style */
[data-lucide][data-fill="true"] {
    fill: currentColor;
}

/* Navigation Bar */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(12, 13, 14, 0.95);
    border-bottom: 1px solid var(--border-default);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.nav-left {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-shrink: 0;
}

.nav-back {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.nav-back:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.nav-divider {
    width: 1px;
    height: 20px;
    background: var(--border-default);
}

.nav-title {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.nav-center {
    flex: 1;
    max-width: 480px;
    margin: 0 var(--space-4);
}

.search-box {
    position: relative;
    width: 100%;
}

.search-icon {
    position: absolute;
    left: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    pointer-events: none;
}

.search-input {
    width: 100%;
    padding: var(--space-2) var(--space-8) var(--space-2) 36px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    transition: all var(--transition-fast);
}

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

.search-input:focus {
    outline: none;
    background: var(--bg-elevated);
    border-color: var(--border-strong);
}

.search-shortcut {
    position: absolute;
    right: var(--space-2);
    top: 50%;
    transform: translateY(-50%);
    padding: 2px 6px;
    background: var(--bg-overlay);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    font-size: 11px;
    font-family: var(--font-mono);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-shrink: 0;
}

.nav-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.nav-btn:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--accent-blue);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary:hover {
    background: #4d7fff;
    transform: translateY(-1px);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    background: var(--bg-elevated);
    border-color: var(--border-strong);
}


/* Filter Bar */
.filter-bar {
    background: rgba(12, 13, 14, 0.95);
    border-bottom: 1px solid var(--border-default);
    position: sticky;
    top: 52px;
    z-index: 90;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding-top: var(--space-4);
}

.filter-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-4) var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.filter-tabs {
    display: flex;
    gap: var(--space-1);
    overflow-x: auto;
    scrollbar-width: none;
}

.filter-tabs::-webkit-scrollbar {
    display: none;
}

.filter-tab {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.filter-tab:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.filter-tab.active {
    color: var(--accent-blue);
    background: var(--bg-tertiary);
    border-color: var(--accent-blue);
}

.filter-count {
    padding: 1px var(--space-2);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 500;
    color: var(--text-secondary);
    min-width: 20px;
    text-align: center;
}

.filter-actions {
    display: flex;
    gap: var(--space-3);
    align-items: center;
}

/* Layout Toggle */
.layout-toggle {
    display: flex;
    gap: var(--space-1);
    padding: 3px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
}

.layout-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.layout-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.layout-btn.active {
    background: var(--bg-tertiary);
    color: var(--accent-blue);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.layout-btn svg {
    display: block;
}

.sort-select {
    padding: var(--space-2) var(--space-3);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sort-select:hover {
    background: var(--bg-elevated);
    border-color: var(--border-strong);
}

.sort-select:focus {
    outline: none;
    border-color: var(--accent-blue);
}

/* Main Content */
.main-content {
    min-height: calc(100vh - 52px);
    background: var(--bg-primary);
    padding-top: var(--space-2);
}

.content-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-4) var(--space-6);
}

/* Cards Grid - Default (Landscape) */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-5);
    padding: var(--space-2) 0;
}

/* Square Layout */
.cards-grid.layout-square {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

/* Portrait Layout */
.cards-grid.layout-portrait {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}

/* Style Card */
.style-card {
    background: var(--bg-card);
    border: 1.5px solid var(--border-strong);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.style-card:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent-blue);
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

.card-image {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 ratio (default landscape) */
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
    overflow: hidden;
    border-bottom: 1px solid var(--border-default);
}

/* Square layout - 1:1 ratio */
.layout-square .card-image {
    padding-bottom: 100%;
}

/* Portrait layout - 9:16 ratio */
.layout-portrait .card-image {
    padding-bottom: 177.78%;
}

.card-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Ensure images fill the container properly in all layouts */
.layout-square .card-image img,
.layout-portrait .card-image img {
    object-fit: cover;
    object-position: center;
}

.card-favorite {
    position: absolute;
    top: var(--space-2);
    right: var(--space-2);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.card-favorite:hover {
    color: var(--accent-yellow);
    background: rgba(0, 0, 0, 0.7);
}

.card-favorite.active {
    color: var(--accent-yellow);
}

.card-content {
    padding: var(--space-4);
    background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.2));
}

/* Adjust content padding for portrait layout to prevent overflow */
.layout-portrait .card-content {
    padding: var(--space-3);
}

/* Adjust font sizes for smaller cards */
.layout-portrait .card-sref {
    font-size: 12px;
}

.layout-portrait .card-description {
    font-size: 12px;
    -webkit-line-clamp: 3;
}

.card-header {
    display: flex;
    align-items: start;
    justify-content: space-between;
    margin-bottom: var(--space-3);
    padding-bottom: var(--space-2);
    border-bottom: 1px solid var(--border-secondary);
}

.card-sref {
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 500;
    color: var(--accent-blue);
    margin-bottom: var(--space-1);
}

.card-category {
    display: inline-flex;
    padding: 3px var(--space-2);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card-description {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: var(--space-2) 0 var(--space-3);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 40px;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
    min-height: 28px;
    align-items: flex-start;
}

.card-tag {
    padding: 3px var(--space-2);
    background: var(--bg-secondary);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-sm);
    font-size: 11px;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.card-tag:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-default);
}

.card-actions {
    display: flex;
    gap: var(--space-2);
    padding-top: var(--space-3);
    margin-top: var(--space-3);
    border-top: 1px solid var(--border-strong);
}

.card-action {
    flex: 1;
    padding: var(--space-2);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.card-action:hover {
    background: var(--bg-tertiary);
    color: var(--accent-blue);
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-10) var(--space-6);
    text-align: center;
}

.empty-icon {
    margin-bottom: var(--space-5);
    color: var(--text-quaternary);
}

.empty-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.empty-description {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    padding: var(--space-4);
}

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

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    width: 90%;
    max-width: 640px;
    max-height: 90vh;
    background: var(--bg-secondary);
    border: 1.5px solid var(--border-strong);
    border-radius: var(--radius-xl);
    overflow: hidden;
    animation: modalSlideIn 0.2s ease-out;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--border-default);
}

.modal-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--space-6);
    overflow-y: auto;
    max-height: calc(90vh - 140px);
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-5) var(--space-6);
    border-top: 1px solid var(--border-default);
}

/* Form Elements */
.form-grid {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--space-6);
}

.form-group {
    margin-bottom: var(--space-5);
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-label {
    display: block;
    margin-bottom: var(--space-2);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    background: var(--bg-elevated);
    border-color: var(--accent-blue);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
    font-family: var(--font-sans);
}

/* Image Upload */
.image-upload {
    position: relative;
    width: 100%;
    height: 200px;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.upload-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    width: 100%;
    height: 100%;
    background: var(--bg-tertiary);
    border: 2px dashed var(--border-strong);
    border-radius: var(--radius-lg);
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.upload-area:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-blue);
    color: var(--text-primary);
}

.upload-preview {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

/* Toast */
.toast {
    position: fixed;
    bottom: var(--space-6);
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-base);
    z-index: 2000;
}

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

.toast-content {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    background: var(--bg-elevated);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.toast-icon {
    color: var(--accent-green);
}

.toast-message {
    font-size: 14px;
    color: var(--text-primary);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .cards-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
    
    .cards-grid.layout-square {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
    
    .cards-grid.layout-portrait {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 var(--space-4);
        gap: var(--space-2);
    }
    
    .nav-center {
        display: none;
    }
    
    .cards-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: var(--space-3);
    }
    
    .cards-grid.layout-square {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
    
    .cards-grid.layout-portrait {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
    
    /* Simplify layout toggle on mobile */
    .layout-toggle {
        padding: 2px;
    }
    
    .layout-btn {
        padding: 6px;
    }
    
    .layout-btn svg {
        width: 14px;
        height: 14px;
    }
    
    .header-container {
        padding: var(--space-6) var(--space-4);
    }
    
    .header-title {
        font-size: 24px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-3);
    }
    
    .filter-container {
        padding: var(--space-3) var(--space-4);
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-tabs {
        width: 100%;
        overflow-x: auto;
    }
    
    .content-container {
        padding: var(--space-4);
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95%;
        max-height: 95vh;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fadeIn {
    animation: fadeIn 0.3s ease-out;
}

.animate-slideUp {
    animation: slideUp 0.3s ease-out;
}

/* Loading State */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-default);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-overlay);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-quaternary);
}