/**
 * QuickCrop - Light Theme Stylesheet
 * A clean, modern design with warm cream tones and terracotta accents
 */

/* ===== CSS Custom Properties ===== */
:root {
    /* Color Palette - Warm Cream & Terracotta */
    --color-bg-primary: #FEFCF9;
    --color-bg-secondary: #F9F6F1;
    --color-bg-tertiary: #F3EDE4;
    --color-bg-card: #FFFFFF;

    --color-text-primary: #1A1612;
    --color-text-secondary: #5C534A;
    --color-text-tertiary: #8B8178;
    --color-text-muted: #A69E94;

    --color-accent-primary: #C85A38;
    --color-accent-secondary: #E07B5A;
    --color-accent-tertiary: #D4A373;
    --color-accent-success: #5B8A5A;
    --color-accent-warning: #D4A373;
    --color-accent-error: #C44536;

    --color-border: #E5DED4;
    --color-border-light: #F0EBE3;

    /* Typography */
    --font-display: 'Fraunces', Georgia, serif;
    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(26, 22, 18, 0.04), 0 1px 2px rgba(26, 22, 18, 0.06);
    --shadow-md: 0 4px 12px rgba(26, 22, 18, 0.06), 0 2px 4px rgba(26, 22, 18, 0.04);
    --shadow-lg: 0 12px 32px rgba(26, 22, 18, 0.08), 0 4px 12px rgba(26, 22, 18, 0.04);
    --shadow-xl: 0 24px 48px rgba(26, 22, 18, 0.1), 0 8px 24px rgba(26, 22, 18, 0.06);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img, video {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--color-accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent-secondary);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* ===== Layout ===== */
.main {
    min-height: calc(100vh - 80px);
}

/* ===== Navigation ===== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(254, 252, 249, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border-light);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    text-decoration: none;
}

.nav-logo:hover {
    color: var(--color-text-primary);
}

.logo-icon {
    width: 36px;
    height: 36px;
    color: var(--color-accent-primary);
}

.nav-links {
    display: flex;
    gap: var(--space-xl);
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: var(--space-sm) 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent-primary);
    transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-accent-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: all var(--transition-fast);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-bg-card);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-lg);
    transform: translateY(-100%);
    opacity: 0;
    transition: all var(--transition-base);
    z-index: 99;
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
}

.mobile-link {
    display: block;
    padding: var(--space-md) 0;
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border-light);
}

.mobile-link:last-child {
    border-bottom: none;
}

/* ===== Hero Section ===== */
.hero {
    padding: var(--space-3xl) 0;
    background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 70%;
    height: 140%;
    background: radial-gradient(ellipse, rgba(200, 90, 56, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 600;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
}

.hero-title-line {
    display: block;
    color: var(--color-text-primary);
}

.hero-title-accent {
    display: block;
    color: var(--color-accent-primary);
    font-style: italic;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
    max-width: 480px;
}

.hero-cta-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-crop-demo {
    position: relative;
    width: 100%;
    max-width: 460px;
    aspect-ratio: 4/3;
}

.demo-image {
    width: 100%;
    height: 100%;
    background: url('/static/img/index-demo-1.webp') center/cover no-repeat;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
}

.demo-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.05);
}

.demo-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, transparent 40%, rgba(255,255,255,0.15) 50%, transparent 60%);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { transform: translateX(-100%); }
    50% { transform: translateX(100%); }
}

/* Animated crop area */
.demo-crop-area {
    position: absolute;
    border: 2px solid var(--color-accent-primary);
    background: rgba(200, 90, 56, 0.06);
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.35);
    animation: cropResize 4s ease-in-out infinite;
}

@keyframes cropResize {
    0%, 100% {
        top: 12%;
        left: 10%;
        width: 55%;
        height: 65%;
    }
    25% {
        top: 8%;
        left: 20%;
        width: 60%;
        height: 50%;
    }
    50% {
        top: 18%;
        left: 15%;
        width: 70%;
        height: 55%;
    }
    75% {
        top: 10%;
        left: 8%;
        width: 50%;
        height: 70%;
    }
}

/* Crop grid (rule of thirds) */
.crop-grid {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.grid-line {
    position: absolute;
    background: rgba(255, 255, 255, 0.4);
}

.grid-line-h1, .grid-line-h2 {
    left: 0;
    right: 0;
    height: 1px;
}

.grid-line-h1 { top: 33.33%; }
.grid-line-h2 { top: 66.66%; }

.grid-line-v1, .grid-line-v2 {
    top: 0;
    bottom: 0;
    width: 1px;
}

.grid-line-v1 { left: 33.33%; }
.grid-line-v2 { left: 66.66%; }

/* Corner handles */
.demo-handle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: #fff;
    border: 2px solid var(--color-accent-primary);
    border-radius: 2px;
    box-shadow: var(--shadow-sm);
    z-index: 10;
}

.demo-handle-nw { animation: handleNW 4s ease-in-out infinite; }
.demo-handle-ne { animation: handleNE 4s ease-in-out infinite; }
.demo-handle-sw { animation: handleSW 4s ease-in-out infinite; }
.demo-handle-se { animation: handleSE 4s ease-in-out infinite; }

@keyframes handleNW {
    0%, 100% { top: calc(12% - 5px); left: calc(10% - 5px); }
    25% { top: calc(8% - 5px); left: calc(20% - 5px); }
    50% { top: calc(18% - 5px); left: calc(15% - 5px); }
    75% { top: calc(10% - 5px); left: calc(8% - 5px); }
}

@keyframes handleNE {
    0%, 100% { top: calc(12% - 5px); left: calc(65% - 5px); }
    25% { top: calc(8% - 5px); left: calc(80% - 5px); }
    50% { top: calc(18% - 5px); left: calc(85% - 5px); }
    75% { top: calc(10% - 5px); left: calc(58% - 5px); }
}

@keyframes handleSW {
    0%, 100% { top: calc(77% - 5px); left: calc(10% - 5px); }
    25% { top: calc(58% - 5px); left: calc(20% - 5px); }
    50% { top: calc(73% - 5px); left: calc(15% - 5px); }
    75% { top: calc(80% - 5px); left: calc(8% - 5px); }
}

@keyframes handleSE {
    0%, 100% { top: calc(77% - 5px); left: calc(65% - 5px); }
    25% { top: calc(58% - 5px); left: calc(80% - 5px); }
    50% { top: calc(73% - 5px); left: calc(85% - 5px); }
    75% { top: calc(80% - 5px); left: calc(58% - 5px); }
}

/* Edge handles */
.demo-handle-n, .demo-handle-s {
    width: 20px;
    height: 6px;
    border-radius: 3px;
}

.demo-handle-w, .demo-handle-e {
    width: 6px;
    height: 20px;
    border-radius: 3px;
}

.demo-handle-n { animation: handleN 4s ease-in-out infinite; }
.demo-handle-s { animation: handleS 4s ease-in-out infinite; }
.demo-handle-w { animation: handleW 4s ease-in-out infinite; }
.demo-handle-e { animation: handleE 4s ease-in-out infinite; }

@keyframes handleN {
    0%, 100% { top: calc(12% - 3px); left: calc(37.5% - 10px); }
    25% { top: calc(8% - 3px); left: calc(50% - 10px); }
    50% { top: calc(18% - 3px); left: calc(50% - 10px); }
    75% { top: calc(10% - 3px); left: calc(33% - 10px); }
}

@keyframes handleS {
    0%, 100% { top: calc(77% - 3px); left: calc(37.5% - 10px); }
    25% { top: calc(58% - 3px); left: calc(50% - 10px); }
    50% { top: calc(73% - 3px); left: calc(50% - 10px); }
    75% { top: calc(80% - 3px); left: calc(33% - 10px); }
}

@keyframes handleW {
    0%, 100% { top: calc(44.5% - 10px); left: calc(10% - 3px); }
    25% { top: calc(33% - 10px); left: calc(20% - 3px); }
    50% { top: calc(45.5% - 10px); left: calc(15% - 3px); }
    75% { top: calc(45% - 10px); left: calc(8% - 3px); }
}

@keyframes handleE {
    0%, 100% { top: calc(44.5% - 10px); left: calc(65% - 3px); }
    25% { top: calc(33% - 10px); left: calc(80% - 3px); }
    50% { top: calc(45.5% - 10px); left: calc(85% - 3px); }
    75% { top: calc(45% - 10px); left: calc(58% - 3px); }
}

/* Dimension indicator */
.demo-dimensions {
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    white-space: nowrap;
    box-shadow: var(--shadow-sm);
}

.demo-dimensions .dim-width,
.demo-dimensions .dim-height {
    color: var(--color-accent-primary);
    font-weight: 600;
    animation: dimChange 8s ease-in-out infinite;
}

.demo-dimensions .dim-width {
    animation-name: dimWidthChange;
}

.demo-dimensions .dim-height {
    animation-name: dimHeightChange;
}

@keyframes dimWidthChange {
    0%, 100% { content: "800"; }
}

@keyframes dimHeightChange {
    0%, 100% { content: "600"; }
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

.btn-primary {
    background: var(--color-accent-primary);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--color-accent-secondary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: var(--color-bg-card);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

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

.btn-full {
    width: 100%;
}

/* ===== Features Section ===== */
.features {
    padding: var(--space-3xl) 0;
    background: var(--color-bg-primary);
}

.features-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--space-2xl);
    color: var(--color-text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.feature-card {
    background: var(--color-bg-card);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
    transition: all var(--transition-base);
}

.feature-card:hover {
    border-color: var(--color-accent-tertiary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-accent-primary);
}

.feature-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--color-text-primary);
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ===== Tool Section ===== */
.tool-section {
    padding: var(--space-3xl) 0;
    background: var(--color-bg-secondary);
}

.tool-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Tabs */
.tool-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
    background: var(--color-bg-card);
    padding: var(--space-sm);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: transparent;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

.tab-btn.active {
    color: white;
    background: var(--color-accent-primary);
}

.tab-icon {
    width: 20px;
    height: 20px;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

/* Upload Zone */
.upload-zone {
    background: var(--color-bg-card);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-3xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--color-accent-primary);
    background: rgba(200, 90, 56, 0.02);
}

.upload-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.upload-icon svg {
    width: 40px;
    height: 40px;
    color: var(--color-accent-primary);
}

.upload-zone h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--color-text-primary);
}

.upload-zone p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.upload-hint {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
}

.upload-hint.format-hint {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-accent-primary);
}

.upload-maxsize {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: var(--space-md);
}

/* Cropper Interface */
.cropper-interface {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--space-xl);
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    border: 1px solid var(--color-border-light);
}

.cropper-main {
    position: relative;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    min-height: 400px;
}

.cropper-canvas-wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cropper-canvas-wrapper img {
    max-width: 100%;
    max-height: 500px;
}

/* Cropper.js overrides */
.cropper-view-box {
    outline: 2px solid var(--color-accent-primary);
    outline-offset: -2px;
}

.cropper-point {
    background-color: var(--color-accent-primary);
    width: 12px !important;
    height: 12px !important;
    border-radius: var(--radius-sm);
}

.cropper-line {
    background-color: var(--color-accent-primary);
}

.cropper-dashed {
    border-color: rgba(200, 90, 56, 0.5);
}

/* Sidebar */
.cropper-sidebar,
.video-sidebar,
.audio-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.sidebar-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--color-accent-tertiary);
    margin-bottom: var(--space-md);
}

.option-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

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

.option-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

/* Aspect Ratio Grid */
.aspect-ratio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
}

.aspect-btn {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.aspect-btn:hover {
    border-color: var(--color-accent-tertiary);
}

.aspect-btn.active {
    color: white;
    background: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
}

/* Mode Tabs (Crop/Resize) */
.mode-tabs {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    padding: var(--space-xs);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    width: fit-content;
}

.mode-tab {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: transparent;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.mode-tab:hover {
    color: var(--color-text-primary);
}

.mode-tab.active {
    color: var(--color-accent-primary);
    background: var(--color-bg-card);
    box-shadow: var(--shadow-sm);
}

.tab-icon {
    width: 18px;
    height: 18px;
}

/* Resize Presets */
.resize-presets {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
}

.preset-btn {
    padding: var(--space-sm) var(--space-xs);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.preset-btn:hover {
    color: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
    background: var(--color-bg-card);
}

/* Toggle Label */
.toggle-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    cursor: pointer;
}

.toggle-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-accent-primary);
    cursor: pointer;
}

/* Image/Video Info */
.image-info,
.video-info {
    margin-top: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
    text-align: center;
}

/* Dimension Inputs */
.dimension-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.input-group label {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

.input-group input,
.format-select {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.9rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg-card);
    color: var(--color-text-primary);
    transition: border-color var(--transition-fast);
    width: 100%;
    min-width: 0;
    box-sizing: border-box;
}

.input-group input:focus,
.format-select:focus {
    outline: none;
    border-color: var(--color-accent-primary);
}

/* Custom Select Dropdown */
.custom-select {
    position: relative;
    width: 100%;
}

.custom-select-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-size: 0.9rem;
    color: var(--color-text-primary);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.custom-select-btn:hover {
    border-color: var(--color-accent-tertiary);
}

.custom-select-btn:focus {
    outline: none;
    border-color: var(--color-accent-primary);
}

.custom-select-arrow {
    width: 16px;
    height: 16px;
    color: var(--color-text-tertiary);
    flex-shrink: 0;
    transition: transform var(--transition-fast);
}

.custom-select.open .custom-select-arrow {
    transform: rotate(180deg);
}

.custom-select-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: var(--space-xs);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
    z-index: 100;
    overflow: hidden;
    max-height: 200px;
    overflow-y: auto;
}

.custom-select.open .custom-select-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.custom-select-option {
    display: block;
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.custom-select-option:hover {
    background: var(--color-bg-secondary);
    color: var(--color-accent-primary);
}

.custom-select-option.active {
    background: rgba(200, 90, 56, 0.08);
    color: var(--color-accent-primary);
    font-weight: 500;
}

.format-select {
    width: 100%;
    cursor: pointer;
}

/* Quality Slider */
.quality-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    outline: none;
}

.quality-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--color-accent-primary);
    border-radius: var(--radius-full);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}

.quality-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--color-accent-primary);
    border-radius: var(--radius-full);
    cursor: pointer;
    border: none;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-top: auto;
    padding-top: var(--space-lg);
}

/* Video/Audio Editor Interface */
.video-editor-interface,
.audio-editor-interface {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--space-xl);
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    border: 1px solid var(--color-border-light);
}

.video-preview-area,
.audio-preview-area {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.video-container {
    position: relative;
    background: #000;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.video-container video {
    width: 100%;
    display: block;
}

.video-crop-overlay {
    position: absolute;
    border: 2px dashed var(--color-accent-primary);
    background: rgba(200, 90, 56, 0.1);
    pointer-events: none;
}

/* Video/Audio Controls */
.video-controls,
.audio-controls {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
}

.control-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.control-btn:hover {
    background: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
}

.control-btn:hover svg {
    color: white;
}

.control-btn svg {
    width: 20px;
    height: 20px;
    color: var(--color-text-primary);
    transition: color var(--transition-fast);
}

.time-display {
    flex: 1;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    font-variant-numeric: tabular-nums;
}

/* Waveform */
.waveform-container {
    position: relative;
    height: 120px;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

#waveform-canvas {
    width: 100%;
    height: 100%;
}

.waveform-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.waveform-trim-range {
    position: absolute;
    top: 0;
    bottom: 0;
    background: rgba(200, 90, 56, 0.15);
    border-left: 2px solid var(--color-accent-primary);
    border-right: 2px solid var(--color-accent-primary);
}

.waveform-playhead {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-accent-primary);
}

/* Timeline Editor */
.timeline-editor {
    padding: var(--space-md) 0;
}

.timeline-bar {
    position: relative;
    height: 24px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    cursor: pointer;
    overflow: visible;
}

.timeline-progress {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    background: var(--color-accent-tertiary);
    border-radius: var(--radius-full);
    pointer-events: none;
}

.timeline-trim-range {
    position: absolute;
    top: 0;
    bottom: 0;
    background: rgba(200, 90, 56, 0.2);
    border-radius: var(--radius-full);
    pointer-events: none;
}

.timeline-trim-start,
.timeline-trim-end {
    position: absolute;
    top: -4px;
    width: 12px;
    height: 32px;
    background: var(--color-accent-primary);
    border-radius: var(--radius-sm);
    cursor: ew-resize;
    transform: translateX(-50%);
    z-index: 2;
}

.timeline-trim-start:hover,
.timeline-trim-end:hover {
    background: var(--color-accent-secondary);
}

/* Trim Inputs */
.trim-inputs {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.trim-inputs .input-group {
    flex-direction: row;
    align-items: center;
    gap: var(--space-sm);
}

.trim-inputs .input-group label {
    min-width: 80px;
}

.trim-inputs .input-group input {
    flex: 1;
    min-width: 80px;
}

.set-time-btn {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-accent-primary);
    background: rgba(200, 90, 56, 0.1);
    border: 1px solid var(--color-accent-primary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.set-time-btn:hover {
    background: var(--color-accent-primary);
    color: white;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
}

.toggle-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-accent-primary);
}

.duration-display {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-accent-primary);
    font-variant-numeric: tabular-nums;
}

/* Results Section */
.results-section {
    margin-top: var(--space-xl);
    padding: var(--space-xl);
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-light);
}

.results-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-lg);
}

.results-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.result-card {
    padding: var(--space-lg);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
}

.result-card h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
}

.result-card p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
}

.result-card p strong {
    color: var(--color-text-primary);
}

.result-card-success {
    background: linear-gradient(135deg, rgba(91, 138, 90, 0.1) 0%, rgba(91, 138, 90, 0.05) 100%);
    border: 1px solid rgba(91, 138, 90, 0.2);
}

.results-actions {
    display: flex;
    gap: var(--space-md);
}

/* ===== Page Header ===== */
.page-header {
    padding: var(--space-2xl) 0;
    background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
}

.page-header-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    text-align: center;
}

.page-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.page-description {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    max-width: 640px;
    margin: 0 auto;
}

/* ===== Formats Section ===== */
.formats-section {
    padding: var(--space-2xl) 0;
    background: var(--color-bg-primary);
}

.formats-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    text-align: center;
}

.formats-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.format-link {
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.format-link:hover {
    color: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
}

.format-link.active {
    color: white;
    background: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-tertiary);
    font-size: 0.9rem;
}

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

/* ===== How To Section ===== */
.howto-section {
    padding: var(--space-2xl) 0;
    background: var(--color-bg-secondary);
}

.howto-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.howto-steps {
    display: grid;
    gap: var(--space-lg);
}

.howto-step {
    display: flex;
    align-items: flex-start;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
}

.step-number {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: white;
    background: var(--color-accent-primary);
    border-radius: var(--radius-md);
}

.howto-step p {
    color: var(--color-text-secondary);
    line-height: 1.6;
    padding-top: var(--space-sm);
}

/* ===== Content Pages ===== */
.content-page {
    padding: var(--space-3xl) 0;
}

.content-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.content-container h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-lg);
}

.content-container h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
}

.content-container p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.8;
}

.content-container .intro {
    font-size: 1.1rem;
    color: var(--color-text-primary);
}

.content-container .last-updated {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-xl);
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    position: relative;
    padding-left: var(--space-xl);
    margin-bottom: var(--space-sm);
    color: var(--color-text-secondary);
}

.feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 8px;
    height: 8px;
    background: var(--color-accent-primary);
    border-radius: var(--radius-full);
}

/* FAQ */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.faq-item {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-primary);
    text-align: left;
    background: transparent;
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: var(--color-bg-secondary);
}

.faq-icon {
    width: 20px;
    height: 20px;
    color: var(--color-text-tertiary);
    transition: transform var(--transition-base);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--space-lg) var(--space-lg);
    color: var(--color-text-secondary);
}

/* ===== Footer ===== */
.footer {
    background: var(--color-bg-tertiary);
    border-top: 1px solid var(--color-border);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(4, 1fr);
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

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

.footer-logo .logo-icon {
    width: 28px;
    height: 28px;
}

.footer-tagline {
    font-size: 0.9rem;
    color: var(--color-text-tertiary);
}

.footer-section h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--space-sm);
}

.footer-section a {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.footer-section a:hover {
    color: var(--color-accent-primary);
}

/* Language Selector */
.language-selector {
    position: relative;
}

.lang-select-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-select-btn:hover {
    border-color: var(--color-accent-tertiary);
    background: var(--color-bg-secondary);
}

.lang-select-btn:focus {
    outline: none;
    border-color: var(--color-accent-primary);
}

.lang-icon {
    width: 18px;
    height: 18px;
    color: var(--color-text-tertiary);
    flex-shrink: 0;
}

.lang-current {
    flex: 1;
    text-align: left;
}

.lang-arrow {
    width: 16px;
    height: 16px;
    color: var(--color-text-tertiary);
    flex-shrink: 0;
    transition: transform var(--transition-fast);
}

.language-selector.open .lang-arrow {
    transform: rotate(180deg);
}

.lang-dropdown {
    position: absolute;
    bottom: 100%;
    left: 0;
    right: 0;
    margin-bottom: var(--space-xs);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-fast);
    z-index: 100;
    overflow: hidden;
}

.language-selector.open .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: block;
    padding: var(--space-sm) var(--space-md);
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.lang-option:hover {
    background: var(--color-bg-secondary);
    color: var(--color-accent-primary);
}

.lang-option.active {
    background: rgba(200, 90, 56, 0.08);
    color: var(--color-accent-primary);
    font-weight: 500;
}

.footer-bottom {
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-copyright {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.footer-legal-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.footer-legal-links a {
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
}

.footer-legal-links a:hover {
    color: var(--color-accent-primary);
}

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        order: 1;
    }

    .hero-visual {
        order: 2;
        width: 100%;
        max-width: 460px;
        margin: var(--space-md) auto 0;
    }

    .hero-crop-demo {
        max-width: 100%;
    }

    .demo-dimensions {
        bottom: -25px;
        font-size: 0.7rem;
    }

    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-cta-group {
        justify-content: center;
    }

    .cropper-interface,
    .video-editor-interface,
    .audio-editor-interface {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .mobile-menu {
        display: block;
    }

    .hero {
        padding: var(--space-2xl) 0;
    }

    .tool-tabs {
        width: 100%;
        flex-direction: column;
    }

    .tab-btn {
        width: 100%;
        justify-content: center;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .results-grid {
        grid-template-columns: 1fr;
    }

    .results-actions {
        flex-direction: column;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .trim-inputs .input-group {
        flex-direction: column;
        align-items: stretch;
    }

    .trim-inputs .input-group label {
        min-width: unset;
    }
}

@media (max-width: 480px) {
    :root {
        --space-lg: 1rem;
        --space-xl: 1.5rem;
        --space-2xl: 2rem;
        --space-3xl: 2.5rem;
    }

    .aspect-ratio-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .dimension-inputs {
        grid-template-columns: 1fr;
    }
}