/* ============================================
   BG Remover - Privacy-First Background Removal
   Premium Creative Design System
   ============================================ */

/* CSS Custom Properties */
:root {
    /* Colors - Ultra Dark Theme */
    --bg-primary: #030305;
    --bg-secondary: #070709;
    --bg-tertiary: #0d0d12;
    --bg-elevated: #131318;
    --bg-card: rgba(13, 13, 18, 0.7);

    /* Vibrant Accent Colors */
    --accent-primary: #7c3aed;
    --accent-secondary: #2dd4bf;
    --accent-tertiary: #f472b6;
    --accent-blue: #3b82f6;
    --accent-cyan: #06b6d4;
    --accent-pink: #ec4899;
    --accent-orange: #f97316;
    --accent-lime: #84cc16;
    --accent-yellow: #facc15;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #7c3aed 0%, #2dd4bf 50%, #f472b6 100%);
    --gradient-aurora: linear-gradient(135deg, #7c3aed 0%, #06b6d4 25%, #2dd4bf 50%, #f472b6 75%, #7c3aed 100%);
    --gradient-text: linear-gradient(90deg, #7c3aed, #2dd4bf, #f472b6, #7c3aed);
    --gradient-card: linear-gradient(135deg, rgba(124, 58, 237, 0.1) 0%, rgba(45, 212, 191, 0.05) 100%);

    /* Text Colors */
    --text-primary: #fafafa;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --text-accent: #a78bfa;

    /* Border Colors */
    --border-subtle: rgba(255, 255, 255, 0.03);
    --border-default: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.1);
    --border-accent: rgba(124, 58, 237, 0.3);

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.7);
    --shadow-glow-purple: 0 0 60px rgba(124, 58, 237, 0.4);
    --shadow-glow-cyan: 0 0 60px rgba(45, 212, 191, 0.3);
    --shadow-glow-pink: 0 0 60px rgba(244, 114, 182, 0.3);

    /* 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;
    --space-4xl: 6rem;
    --space-5xl: 8rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --radius-full: 9999px;

    /* Typography */
    --font-sans: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slower: 600ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

/* App Container */
.app {
    position: relative;
    min-height: 100vh;
}

/* ============================================
   ANIMATED BACKGROUNDS
   ============================================ */

/* Noise Texture */
.bg-noise {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
    z-index: 0;
}

/* Gradient Mesh */
.bg-gradient-mesh {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse 80% 50% at 20% 40%, rgba(124, 58, 237, 0.15), transparent),
        radial-gradient(ellipse 60% 40% at 80% 60%, rgba(45, 212, 191, 0.1), transparent),
        radial-gradient(ellipse 50% 30% at 40% 80%, rgba(244, 114, 182, 0.1), transparent);
    pointer-events: none;
    z-index: 0;
}

/* Aurora Effect */
.aurora {
    position: fixed;
    width: 150%;
    height: 50%;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
    pointer-events: none;
    z-index: 0;
    animation: aurora 20s ease-in-out infinite;
}

.aurora-1 {
    top: -30%;
    left: -25%;
    background: linear-gradient(180deg, rgba(124, 58, 237, 0.3) 0%, transparent 100%);
    animation-delay: 0s;
}

.aurora-2 {
    top: -20%;
    right: -25%;
    background: linear-gradient(180deg, rgba(45, 212, 191, 0.25) 0%, transparent 100%);
    animation-delay: -7s;
}

.aurora-3 {
    top: 10%;
    left: 20%;
    width: 80%;
    height: 30%;
    background: linear-gradient(180deg, rgba(244, 114, 182, 0.2) 0%, transparent 100%);
    animation-delay: -14s;
}

@keyframes aurora {

    0%,
    100% {
        transform: translateY(0) scale(1) rotate(0deg);
        opacity: 0.4;
    }

    25% {
        transform: translateY(30px) scale(1.05) rotate(2deg);
        opacity: 0.6;
    }

    50% {
        transform: translateY(-20px) scale(0.95) rotate(-1deg);
        opacity: 0.5;
    }

    75% {
        transform: translateY(15px) scale(1.02) rotate(1deg);
        opacity: 0.55;
    }
}

/* Floating Shapes */
.floating-shapes {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(40px);
    animation: float 25s ease-in-out infinite;
}

.shape-1 {
    width: 300px;
    height: 300px;
    top: 20%;
    left: 10%;
    background: rgba(124, 58, 237, 0.15);
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    top: 60%;
    right: 15%;
    background: rgba(45, 212, 191, 0.12);
    animation-delay: -5s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    bottom: 20%;
    left: 30%;
    background: rgba(244, 114, 182, 0.1);
    animation-delay: -10s;
}

.shape-4 {
    width: 100px;
    height: 100px;
    top: 40%;
    right: 40%;
    background: rgba(6, 182, 212, 0.15);
    animation-delay: -15s;
}

.shape-5 {
    width: 250px;
    height: 250px;
    bottom: 10%;
    right: 5%;
    background: rgba(124, 58, 237, 0.1);
    animation-delay: -20s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    25% {
        transform: translate(50px, -30px) rotate(90deg);
    }

    50% {
        transform: translate(-30px, 50px) rotate(180deg);
    }

    75% {
        transform: translate(30px, 30px) rotate(270deg);
    }
}

/* ============================================
   NAVIGATION
   ============================================ */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) var(--space-xl);
    background: rgba(3, 3, 5, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    color: var(--text-primary);
}

.logo-glow {
    position: absolute;
    width: 40px;
    height: 40px;
    background: var(--accent-primary);
    border-radius: 50%;
    filter: blur(20px);
    opacity: 0.5;
    left: -5px;
}

.logo-icon {
    font-size: 1.5rem;
    position: relative;
    z-index: 1;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 1;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

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

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

.nav-link-icon {
    display: flex;
    align-items: center;
}

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

.nav-link-icon::after {
    display: none;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.hidden {
    display: none !important;
}

.text-accent {
    color: var(--text-accent);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text-animated {
    background: var(--gradient-text);
    background-size: 300% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 5s ease-in-out infinite;
}

@keyframes gradientShift {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-5xl) var(--space-xl) var(--space-3xl);
}

.hero-container {
    max-width: 900px;
    text-align: center;
}

.hero-badge {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: rgba(124, 58, 237, 0.1);
    border: 1px solid rgba(124, 58, 237, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--text-accent);
    margin-bottom: var(--space-xl);
    animation: fadeInUp 0.6s ease-out;
    overflow: hidden;
}

.badge-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    filter: blur(20px);
    opacity: 0.3;
    transform: translate(-50%, -50%);
    animation: pulseGlow 3s ease-in-out infinite;
}

@keyframes pulseGlow {

    0%,
    100% {
        opacity: 0.2;
        transform: translate(-50%, -50%) scale(1);
    }

    50% {
        opacity: 0.4;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-secondary);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
    position: relative;
    z-index: 1;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        box-shadow: 0 0 0 0 rgba(45, 212, 191, 0.4);
    }

    50% {
        opacity: 0.8;
        box-shadow: 0 0 0 8px rgba(45, 212, 191, 0);
    }
}

.hero-title {
    margin-bottom: var(--space-lg);
    animation: fadeInUp 0.6s ease-out 0.1s backwards;
}

.title-line {
    display: block;
    font-size: clamp(2.5rem, 7vw, 5rem);
    font-weight: 700;
    line-height: 1.1;
}

.title-line:first-child {
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-2xl);
    animation: fadeInUp 0.6s ease-out 0.2s backwards;
}

.hero-subtitle strong {
    color: var(--text-primary);
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
    margin-bottom: var(--space-3xl);
    animation: fadeInUp 0.6s ease-out 0.3s backwards;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-2xl);
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease-out 0.4s backwards;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
}

.stat-icon {
    font-size: 1.5rem;
    margin-bottom: var(--space-xs);
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Hero Preview Card */
.hero-preview {
    margin-top: var(--space-2xl);
    animation: fadeInUp 0.6s ease-out 0.5s backwards;
}

.preview-card {
    display: inline-flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
}

.preview-before,
.preview-after {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

.preview-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.preview-placeholder {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
}

.transparent-grid {
    background-image:
        linear-gradient(45deg, #333 25%, transparent 25%),
        linear-gradient(-45deg, #333 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #333 75%),
        linear-gradient(-45deg, transparent 75%, #333 75%);
    background-size: 12px 12px;
    background-position: 0 0, 0 6px, 6px -6px, -6px 0px;
    background-color: #222;
}

.preview-arrow {
    font-size: 1.5rem;
    color: var(--text-muted);
    animation: arrowPulse 2s ease-in-out infinite;
}

@keyframes arrowPulse {

    0%,
    100% {
        opacity: 0.5;
        transform: translateX(0);
    }

    50% {
        opacity: 1;
        transform: translateX(5px);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-lg);
    font-size: 0.9375rem;
    font-weight: 600;
    font-family: var(--font-sans);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    overflow: hidden;
}

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

.btn-sm {
    padding: var(--space-xs) var(--space-md);
    font-size: 0.875rem;
}

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

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg), var(--shadow-glow-purple);
}

.btn-glow {
    position: relative;
}

.btn-glow::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: var(--gradient-primary);
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    filter: blur(15px);
    transition: opacity var(--transition-base);
}

.btn-glow:hover::before {
    opacity: 0.6;
}

.btn-shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover .btn-shine {
    left: 100%;
}

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

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.btn-glass {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-secondary);
    border: 1px solid var(--border-default);
    backdrop-filter: blur(10px);
}

.btn-glass:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
    background: rgba(255, 255, 255, 0.06);
}

/* ============================================
   SECTIONS
   ============================================ */

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-md);
    background: rgba(124, 58, 237, 0.1);
    border: 1px solid rgba(124, 58, 237, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.tag-dot {
    width: 6px;
    height: 6px;
    background: var(--accent-secondary);
    border-radius: 50%;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   FEATURES SECTION
   ============================================ */

.features-section {
    position: relative;
    z-index: 1;
    padding: var(--space-5xl) 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-lg);
}

.privacy-cta {
    margin-top: var(--space-2xl);
}

.feature-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: all var(--transition-slow);
    backdrop-filter: blur(10px);
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-card);
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.feature-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-8px);
}

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

.feature-shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.03), transparent);
    transform: skewX(-20deg);
    transition: left 0.8s ease;
}

.feature-card:hover .feature-shine {
    left: 150%;
}

.feature-icon {
    position: relative;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: var(--space-md);
    z-index: 1;
}

.feature-card h3 {
    position: relative;
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    z-index: 1;
}

.feature-card p {
    position: relative;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    z-index: 1;
}

/* ============================================
   TOOLS SECTION
   ============================================ */

.tools-section {
    position: relative;
    z-index: 1;
    padding: var(--space-5xl) 0;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.tool-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
}

.tool-tab {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all var(--transition-base);
}

.tab-icon {
    font-size: 1.25rem;
}

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

.tool-tab.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    box-shadow: var(--shadow-glow-purple);
}

.tool-container {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    padding: var(--space-2xl);
    min-height: 500px;
    backdrop-filter: blur(10px);
}

.tool-panel {
    display: none;
}

.tool-panel.active {
    display: block;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* ============================================
   LOADING STATES
   ============================================ */

.model-loading,
.processing-section {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.loading-content,
.processing-content {
    text-align: center;
}

/* Animated Loading Orb */
.loading-orb {
    position: relative;
    width: 100px;
    height: 100px;
    margin: 0 auto var(--space-xl);
}

.orb-ring {
    position: absolute;
    inset: 0;
    border: 2px solid transparent;
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: orbSpin 2s linear infinite;
}

.orb-ring:nth-child(1) {
    border-top-color: var(--accent-primary);
    animation-duration: 2s;
}

.orb-ring:nth-child(2) {
    inset: 10px;
    border-top-color: var(--accent-secondary);
    animation-duration: 2.5s;
    animation-direction: reverse;
}

.orb-ring:nth-child(3) {
    inset: 20px;
    border-top-color: var(--accent-tertiary);
    animation-duration: 3s;
}

.orb-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2rem;
    animation: orbPulse 2s ease-in-out infinite;
}

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

@keyframes orbPulse {

    0%,
    100% {
        transform: translate(-50%, -50%) scale(1);
    }

    50% {
        transform: translate(-50%, -50%) scale(1.1);
    }
}

.processing-orb .orb-ring {
    border-top-color: var(--accent-secondary);
}

.processing-orb .orb-ring:nth-child(2) {
    border-top-color: var(--accent-primary);
}

.processing-orb .orb-ring:nth-child(3) {
    border-top-color: var(--accent-tertiary);
}

.loading-content h3,
.processing-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.loading-content p,
.processing-content p {
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.loading-note {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Progress Bar */
.progress-bar {
    position: relative;
    width: 100%;
    max-width: 300px;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin: var(--space-md) auto;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    width: 0%;
    transition: width var(--transition-base);
}

.progress-glow {
    position: absolute;
    top: 0;
    right: 0;
    width: 30px;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3));
    animation: progressGlow 1.5s ease-in-out infinite;
}

@keyframes progressGlow {
    0% {
        opacity: 0;
        transform: translateX(-30px);
    }

    50% {
        opacity: 1;
    }

    100% {
        opacity: 0;
        transform: translateX(30px);
    }
}

.progress-text {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* ============================================
   UPLOAD SECTION
   ============================================ */

.upload-section {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.drop-zone {
    position: relative;
    width: 100%;
    max-width: 500px;
    border: 2px dashed var(--border-default);
    border-radius: var(--radius-2xl);
    padding: var(--space-3xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    background: rgba(13, 13, 18, 0.5);
    overflow: hidden;
}

.drop-zone::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-card);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.drop-zone:hover,
.drop-zone.drag-over {
    border-color: var(--accent-primary);
    background: rgba(124, 58, 237, 0.05);
}

.drop-zone:hover::before,
.drop-zone.drag-over::before {
    opacity: 1;
}

.drop-zone-content {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    z-index: 1;
}

.drop-zone-icon {
    position: relative;
    font-size: 3rem;
}

.icon-pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 80px;
    height: 80px;
    background: var(--accent-primary);
    border-radius: 50%;
    filter: blur(20px);
    opacity: 0.3;
    transform: translate(-50%, -50%);
    animation: iconPulse 2s ease-in-out infinite;
}

@keyframes iconPulse {

    0%,
    100% {
        opacity: 0.2;
        transform: translate(-50%, -50%) scale(1);
    }

    50% {
        opacity: 0.4;
        transform: translate(-50%, -50%) scale(1.2);
    }
}

.drop-zone h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.drop-zone p {
    color: var(--text-secondary);
}

.file-types {
    font-size: 0.75rem;
    color: var(--text-muted);
    padding: var(--space-xs) var(--space-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

/* ============================================
   RESULT SECTION
   ============================================ */

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

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.result-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.preview-container {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.preview-toggle {
    display: flex;
    padding: var(--space-sm);
    gap: var(--space-xs);
    border-bottom: 1px solid var(--border-subtle);
    background: var(--bg-elevated);
}

.toggle-btn {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    font-family: var(--font-sans);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.toggle-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

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

.preview-wrapper {
    padding: var(--space-lg);
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-image {
    width: 100%;
    display: flex;
    justify-content: center;
}

.preview-image img {
    max-width: 100%;
    max-height: 350px;
    border-radius: var(--radius-lg);
    object-fit: contain;
}

.transparent-bg {
    background-image:
        linear-gradient(45deg, #333 25%, transparent 25%),
        linear-gradient(-45deg, #333 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #333 75%),
        linear-gradient(-45deg, transparent 75%, #333 75%);
    background-size: 16px 16px;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
    background-color: #222;
    border-radius: var(--radius-lg);
    display: inline-block;
}

.result-actions {
    display: flex;
    justify-content: center;
    margin-top: var(--space-lg);
}

/* ============================================
   WATERMARK EDITOR
   ============================================ */

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

.watermark-preview-container {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    margin-bottom: var(--space-xl);
    display: flex;
    justify-content: center;
    overflow: hidden;
}

.watermark-canvas-wrapper {
    max-width: 100%;
    overflow: hidden;
}

#watermark-canvas {
    max-width: 100%;
    max-height: 400px;
    border-radius: var(--radius-lg);
    object-fit: contain;
}

.watermark-controls {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
}

.control-group {
    margin-bottom: var(--space-lg);
}

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

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

.control-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.control-input,
.control-select {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-elevated);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9375rem;
    font-family: var(--font-sans);
    transition: all var(--transition-fast);
}

.control-input:focus,
.control-select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.2);
}

.control-select {
    cursor: pointer;
}

.control-range {
    width: 100%;
    height: 8px;
    background: var(--bg-elevated);
    border-radius: var(--radius-full);
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
}

.control-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--gradient-primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 15px rgba(124, 58, 237, 0.5);
    transition: transform var(--transition-fast);
}

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

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

.range-value {
    display: inline-block;
    margin-top: var(--space-xs);
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.color-picker-wrapper {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.control-color {
    width: 44px;
    height: 36px;
    border: 2px solid var(--border-default);
    border-radius: var(--radius-md);
    cursor: pointer;
    padding: 0;
    background: none;
    transition: border-color var(--transition-fast);
}

.control-color:hover {
    border-color: var(--border-hover);
}

.control-color::-webkit-color-swatch-wrapper {
    padding: 3px;
}

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

.watermark-actions {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.watermark-actions .btn {
    flex: 1;
}

/* ============================================
   PRIVACY SECTION
   ============================================ */

.privacy-section {
    position: relative;
    z-index: 1;
    padding: var(--space-5xl) 0;
}

.privacy-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.privacy-text .section-tag,
.privacy-text .section-title {
    text-align: left;
}

.privacy-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

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

.privacy-point {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    color: var(--text-secondary);
}

.point-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.privacy-point strong {
    color: var(--text-primary);
}

.privacy-visual {
    display: flex;
    justify-content: center;
}

.privacy-diagram {
    position: relative;
    width: 100%;
    max-width: 400px;
}

.diagram-browser {
    background: var(--bg-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.diagram-header {
    display: flex;
    gap: 8px;
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border-subtle);
}

.diagram-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.diagram-dot.red {
    background: #ef4444;
}

.diagram-dot.yellow {
    background: #eab308;
}

.diagram-dot.green {
    background: #22c55e;
}

.diagram-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    padding: var(--space-2xl);
}

.diagram-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
}

.step-emoji {
    font-size: 2rem;
    animation: stepBounce 2s ease-in-out infinite;
}

.step-emoji:nth-child(1) {
    animation-delay: 0s;
}

.diagram-step:nth-child(3) .step-emoji {
    animation-delay: 0.2s;
}

.diagram-step:nth-child(5) .step-emoji {
    animation-delay: 0.4s;
}

@keyframes stepBounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}

.step-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.diagram-arrow {
    color: var(--accent-primary);
    font-size: 1.5rem;
    animation: arrowMove 1.5s ease-in-out infinite;
}

@keyframes arrowMove {

    0%,
    100% {
        opacity: 0.5;
        transform: translateX(0);
    }

    50% {
        opacity: 1;
        transform: translateX(3px);
    }
}

.diagram-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: rgba(45, 212, 191, 0.1);
    color: var(--accent-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.label-icon {
    font-size: 1rem;
}

.diagram-cloud {
    position: absolute;
    bottom: -50px;
    right: -30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 0.5;
}

.cloud-emoji {
    font-size: 2.5rem;
}

.cloud-text {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.cloud-x {
    position: absolute;
    top: 0;
    right: -10px;
    font-size: 1.25rem;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    position: relative;
    z-index: 1;
    padding: var(--space-3xl) var(--space-xl);
    border-top: 1px solid var(--border-subtle);
    background: var(--bg-secondary);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

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

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

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

.footer-copy {
    text-align: center;
}

.footer-copy p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.footer-tech {
    color: var(--text-muted);
    font-size: 0.75rem;
    margin-top: var(--space-xs);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
    .privacy-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .privacy-text .section-tag,
    .privacy-text .section-title {
        text-align: center;
    }

    .privacy-points {
        align-items: center;
    }

    .privacy-visual {
        order: -1;
    }
}

@media (max-width: 768px) {
    .nav {
        padding: var(--space-sm) var(--space-md);
    }

    .nav-links {
        gap: var(--space-md);
    }

    .nav-link:not(.nav-link-icon) {
        display: none;
    }

    .hero {
        padding: var(--space-4xl) var(--space-md) var(--space-2xl);
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-stats {
        gap: var(--space-lg);
    }

    .hero-preview {
        display: none;
    }

    .section-container {
        padding: 0 var(--space-md);
    }

    .tool-tabs {
        flex-direction: column;
    }

    .tool-container {
        padding: var(--space-lg);
    }

    .control-row {
        grid-template-columns: 1fr;
    }

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

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

@media (max-width: 480px) {
    .hero-badge {
        font-size: 0.7rem;
        padding: var(--space-xs) var(--space-md);
    }

    .drop-zone {
        padding: var(--space-xl);
    }

    .aurora {
        display: none;
    }

    .floating-shapes .shape {
        display: none;
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {

    .nav,
    .footer,
    .bg-noise,
    .bg-gradient-mesh,
    .aurora,
    .floating-shapes {
        display: none;
    }
}

/* ============================================
   FOCUS STATES
   ============================================ */

.btn:focus-visible,
.tool-tab:focus-visible,
.toggle-btn:focus-visible,
.drop-zone:focus-visible,
.control-input:focus-visible,
.control-select:focus-visible,
.nav-link:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}