/* JustConvert Design System v2.0 - Orange Theme with Glassmorphism */

:root {
    /* Primary: Orange */
    --primary: #FF6B35;
    --primary-hover: #E85D2C;
    --primary-light: #FFF3ED;
    --primary-container: #FFE0D0;
    --primary-fixed: #FFDCC8;
    --on-primary: #ffffff;

    /* Secondary: Deep Slate */
    --secondary: #1E293B;
    --secondary-light: #334155;

    /* Accent: Warm Gold */
    --accent: #F59E0B;
    --accent-light: #FEF3C7;

    /* Surfaces */
    --surface: #FAFAFA;
    --surface-dim: #E5E5E5;
    --surface-bright: #FFFFFF;
    --surface-container: #F0F0F2;
    --surface-container-low: #F5F5F7;
    --surface-container-high: #E8E8EA;
    --surface-container-highest: #E0E0E2;
    --surface-container-lowest: #FFFFFF;
    --surface-variant: #F1F5F9;

    /* Text */
    --on-surface: #0F172A;
    --on-surface-variant: #64748B;
    --on-background: #0F172A;

    /* Borders & Outlines */
    --outline: #94A3B8;
    --outline-variant: #E2E8F0;
    --border-glass: rgba(255, 107, 53, 0.12);

    /* States */
    --error: #DC2626;
    --error-container: #FEE2E2;
    --success: #16A34A;
    --success-container: #DCFCE7;

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 40px rgba(255, 107, 53, 0.15);
    --shadow-ambient: rgba(0, 0, 0, 0.06);
    --shadow-elevated: rgba(0, 0, 0, 0.1);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #FF6B35 0%, #FF8F65 100%);
    --gradient-hero: linear-gradient(135deg, #FF6B35 0%, #F97316 50%, #FB923C 100%);
    --gradient-warm: linear-gradient(135deg, #FF6B35 0%, #F59E0B 100%);
    --gradient-dark: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
    --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.9), rgba(255,255,255,0.6));
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.8), rgba(255,255,255,0.4));

    /* Glass */
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-bg-strong: rgba(255, 255, 255, 0.9);
    --glass-border: rgba(255, 255, 255, 0.3);
    --glass-shadow: 0 8px 32px rgba(255, 107, 53, 0.06);

    /* Radii */
    --radius-sm: 0.375rem;
    --radius-md: 0.625rem;
    --radius-lg: 0.875rem;
    --radius-xl: 1.25rem;
    --radius-2xl: 1.75rem;
    --radius-full: 9999px;

    /* Fonts */
    --font-headline: 'Manrope', system-ui, sans-serif;
    --font-body: 'Inter', system-ui, sans-serif;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ---------- Dark Mode ---------- */

[data-theme="dark"] {
    --surface: #0B0F19;
    --surface-dim: #151B2B;
    --surface-bright: #1A2236;
    --surface-container: #111827;
    --surface-container-low: #0F1525;
    --surface-container-high: #1E293B;
    --surface-container-highest: #263349;
    --surface-container-lowest: #070B14;
    --surface-variant: #1E293B;

    --on-surface: #F1F5F9;
    --on-surface-variant: #94A3B8;
    --on-background: #F1F5F9;

    --outline: #475569;
    --outline-variant: #334155;
    --border-glass: rgba(255, 107, 53, 0.15);

    --primary-light: #2A1A10;
    --primary-container: #3D1F0E;
    --primary-fixed: #3D2212;

    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 40px rgba(255, 107, 53, 0.2);

    --glass-bg: rgba(15, 23, 42, 0.8);
    --glass-bg-strong: rgba(15, 23, 42, 0.95);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);

    --gradient-card: linear-gradient(145deg, rgba(30,41,59,0.9), rgba(15,23,42,0.7));
    --gradient-glass: linear-gradient(135deg, rgba(30,41,59,0.8), rgba(15,23,42,0.5));

    --error-container: #450A0A;
    --success-container: #052E16;
}

/* ---------- Reset ---------- */

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

html {
    scroll-behavior: smooth;
    font-size: 17px;
}

body {
    font-family: var(--font-body);
    background: var(--surface);
    color: var(--on-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.65;
    transition: background-color 0.3s var(--ease-out), color 0.3s var(--ease-out);
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    display: block;
}

/* ---------- Animations ---------- */

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

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes checkDraw {
    from { stroke-dashoffset: 24; }
    to { stroke-dashoffset: 0; }
}

@keyframes borderPulse {
    0%, 100% { border-color: var(--primary); }
    50% { border-color: var(--accent); }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

.animate-fade-in-up {
    animation: fadeInUp 0.5s var(--ease-out) both;
}

.animate-stagger > * {
    animation: fadeInUp 0.5s var(--ease-out) both;
}

.animate-stagger > *:nth-child(1) { animation-delay: 0ms; }
.animate-stagger > *:nth-child(2) { animation-delay: 50ms; }
.animate-stagger > *:nth-child(3) { animation-delay: 100ms; }
.animate-stagger > *:nth-child(4) { animation-delay: 150ms; }
.animate-stagger > *:nth-child(5) { animation-delay: 200ms; }
.animate-stagger > *:nth-child(6) { animation-delay: 250ms; }
.animate-stagger > *:nth-child(7) { animation-delay: 300ms; }
.animate-stagger > *:nth-child(8) { animation-delay: 350ms; }
.animate-stagger > *:nth-child(9) { animation-delay: 400ms; }
.animate-stagger > *:nth-child(10) { animation-delay: 450ms; }
.animate-stagger > *:nth-child(11) { animation-delay: 500ms; }
.animate-stagger > *:nth-child(12) { animation-delay: 550ms; }
.animate-stagger > *:nth-child(n+13) { animation-delay: 600ms; }

/* ---------- Navigation ---------- */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    transition: background-color 0.3s;
}

.nav-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
}

.nav-logo {
    font-family: var(--font-headline);
    font-weight: 800;
    font-size: 1.625rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.03em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
}

.nav-links a {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--on-surface-variant);
    padding: 0.5rem 0.875rem;
    border-radius: var(--radius-lg);
    transition: all 0.2s var(--ease-out);
}

.nav-links a:hover {
    color: var(--primary);
    background: var(--primary-light);
}

.nav-links a.active {
    color: var(--primary);
    font-weight: 600;
    background: var(--primary-light);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-search {
    position: relative;
    display: none;
}

.nav-search input {
    background: var(--surface-container-low);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-full);
    padding: 0.5rem 1rem 0.5rem 2.5rem;
    font-size: 0.8125rem;
    width: 200px;
    outline: none;
    font-family: var(--font-body);
    color: var(--on-surface);
    transition: all 0.2s;
}

.nav-search input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
    width: 260px;
}

.nav-search .search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.125rem;
    color: var(--outline);
}

/* Theme Toggle */
.theme-toggle {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--outline-variant);
    background: var(--surface-container-low);
    color: var(--on-surface-variant);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    font-size: 1.125rem;
}

.theme-toggle:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    color: var(--on-surface);
    cursor: pointer;
    border-radius: var(--radius-md);
    align-items: center;
    justify-content: center;
}

/* User Menu */
.user-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.75rem 0.375rem 0.5rem;
    background: var(--surface-container-low);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all 0.2s;
}

.user-menu:hover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
}

.user-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.user-name {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--on-surface);
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ---------- Buttons ---------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.875rem;
    border: none;
    cursor: pointer;
    transition: all 0.25s var(--ease-out);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn .material-symbols-outlined {
    font-size: 1.125rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--on-primary);
    padding: 0.625rem 1.5rem;
    border-radius: var(--radius-full);
    box-shadow: 0 2px 8px rgba(255, 107, 53, 0.25);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(255, 107, 53, 0.35);
}

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

.btn-accent {
    background: var(--gradient-warm);
    background-size: 200% 200%;
    color: var(--on-primary);
    padding: 0.75rem 2rem;
    border-radius: var(--radius-full);
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(255, 107, 53, 0.3);
}

.btn-accent:hover {
    animation: gradientShift 3s ease infinite;
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(255, 107, 53, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--on-surface);
    padding: 0.625rem 1.5rem;
    border-radius: var(--radius-full);
    border: 1.5px solid var(--outline-variant);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
}

.btn-ghost {
    background: transparent;
    color: var(--on-surface-variant);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
}

.btn-ghost:hover {
    background: var(--surface-container);
    color: var(--on-surface);
}

.btn-lg {
    padding: 0.875rem 2.5rem;
    font-size: 1rem;
}

.btn-sm {
    padding: 0.375rem 1rem;
    font-size: 0.8125rem;
}

.btn-google {
    background: var(--surface-container-lowest);
    color: var(--on-surface);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    border: 1.5px solid var(--outline-variant);
    font-weight: 600;
    width: 100%;
}

.btn-google:hover {
    background: var(--surface-container-low);
    border-color: var(--outline);
    box-shadow: var(--shadow-sm);
}

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

/* ---------- Layout ---------- */

.container {
    max-width: 1360px;
    margin: 0 auto;
    padding: 0 2rem;
}

.page-content {
    padding-top: 4.5rem;
    min-height: 100vh;
}

/* ---------- Hero ---------- */

.hero {
    text-align: center;
    padding: 5rem 0 3rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255,107,53,0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    animation: float 8s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(245,158,11,0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    animation: float 10s ease-in-out infinite reverse;
}

.hero h1 {
    font-family: var(--font-headline);
    font-weight: 800;
    font-size: 4.25rem;
    line-height: 1.08;
    letter-spacing: -0.03em;
    color: var(--on-background);
    max-width: 860px;
    margin: 0 auto 1.75rem;
    animation: fadeInUp 0.6s var(--ease-out) both;
}

.hero h1 .accent {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-style: normal;
}

.hero p {
    font-size: 1.125rem;
    color: var(--on-surface-variant);
    max-width: 560px;
    margin: 0 auto 2.5rem;
    animation: fadeInUp 0.6s var(--ease-out) 0.1s both;
}

.hero-search {
    max-width: 580px;
    margin: 0 auto;
    background: var(--glass-bg-strong);
    padding: 0.4rem;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    animation: fadeInUp 0.6s var(--ease-out) 0.2s both;
}

.hero-search input {
    flex-grow: 1;
    border: none;
    background: transparent;
    padding: 0.625rem 1rem;
    font-family: var(--font-body);
    outline: none;
    font-size: 0.9375rem;
    color: var(--on-surface);
}

.hero-search input::placeholder {
    color: var(--on-surface-variant);
}

.hero-popular {
    margin-top: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s var(--ease-out) 0.3s both;
}

.hero-popular span {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--on-surface-variant);
}

.hero-popular a {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.875rem;
    transition: color 0.2s;
}

.hero-popular a:hover {
    color: var(--primary-hover);
}

/* ---------- Tool Page Hero ---------- */

.tool-hero {
    text-align: center;
    padding: 3rem 0 2rem;
    animation: fadeInUp 0.5s var(--ease-out) both;
}

.tool-hero h1 {
    font-family: var(--font-headline);
    font-weight: 800;
    font-size: 3rem;
    color: var(--on-background);
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.tool-hero p {
    font-size: 1rem;
    color: var(--on-surface-variant);
    max-width: 500px;
    margin: 0 auto;
}

/* ---------- Drop Zone ---------- */

.dropzone-wrapper {
    max-width: 680px;
    margin: 2rem auto;
    animation: scaleIn 0.4s var(--ease-out) 0.2s both;
}

.dropzone {
    background: var(--gradient-glass);
    backdrop-filter: blur(12px);
    border-radius: var(--radius-2xl);
    padding: 3.5rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s var(--ease-out);
    position: relative;
    border: 2px dashed var(--outline-variant);
}

.dropzone:hover {
    border-color: var(--primary);
    background: var(--primary-light);
    box-shadow: var(--shadow-glow);
}

.dropzone.dragover {
    border-color: var(--primary);
    background: var(--primary-light);
    border-style: solid;
    box-shadow: var(--shadow-glow);
    animation: borderPulse 1.5s ease infinite;
}

.dropzone-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    color: white;
    font-size: 1.75rem;
    box-shadow: 0 4px 20px rgba(255, 107, 53, 0.3);
    transition: transform 0.3s var(--ease-spring);
}

.dropzone:hover .dropzone-icon {
    transform: scale(1.08);
}

.dropzone-label {
    font-weight: 700;
    font-size: 1.0625rem;
    color: var(--on-background);
    margin-bottom: 0.375rem;
}

.dropzone-sublabel {
    font-size: 0.875rem;
    color: var(--on-surface-variant);
}

.dropzone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

/* ---------- Feature Chips ---------- */

.chip-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1.25rem;
    flex-wrap: wrap;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--on-surface-variant);
    background: var(--surface-container-lowest);
    border: 1px solid var(--outline-variant);
}

.chip .material-symbols-outlined {
    font-size: 0.875rem;
    color: var(--primary);
}

/* ---------- Filter Bar ---------- */

.filter-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    padding: 1rem 0;
}

.filter-chip {
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 600;
    border: 1.5px solid var(--outline-variant);
    cursor: pointer;
    transition: all 0.25s var(--ease-out);
    background: transparent;
    color: var(--on-surface-variant);
    font-family: var(--font-body);
}

.filter-chip:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
}

.filter-chip.active {
    background: var(--gradient-primary);
    color: var(--on-primary);
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(255, 107, 53, 0.25);
}

/* ---------- Cards Grid ---------- */

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.25rem;
}

.tool-card {
    background: var(--glass-bg-strong);
    backdrop-filter: blur(8px);
    padding: 1.75rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--outline-variant);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    transition: all 0.3s var(--ease-out);
    text-decoration: none;
    color: inherit;
    position: relative;
    overflow: hidden;
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s;
}

.tool-card:hover {
    border-color: var(--border-glass);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

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

.tool-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    transition: all 0.3s var(--ease-spring);
}

.tool-card:hover .tool-card-icon {
    background: var(--gradient-primary);
    transform: scale(1.1) rotate(-3deg);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.tool-card-icon .material-symbols-outlined {
    color: var(--primary);
    font-size: 1.375rem;
    transition: color 0.3s;
}

.tool-card:hover .tool-card-icon .material-symbols-outlined {
    color: white;
}

.tool-card h3 {
    font-family: var(--font-headline);
    font-weight: 700;
    font-size: 1.15rem;
    margin-bottom: 0.5rem;
    color: var(--on-surface);
}

.tool-card p {
    font-size: 0.8125rem;
    color: var(--on-surface-variant);
    line-height: 1.5;
    margin-bottom: 1.25rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.tool-card .card-link {
    margin-top: auto;
    color: var(--primary);
    font-weight: 700;
    font-size: 0.8125rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    transition: gap 0.2s var(--ease-out);
}

.tool-card:hover .card-link {
    gap: 0.625rem;
}

.card-link .material-symbols-outlined {
    font-size: 0.875rem;
}

/* ---------- Processing State ---------- */

.processing-state {
    display: none;
    text-align: center;
    padding: 3rem 2rem;
    animation: fadeIn 0.3s;
}

.processing-state.active {
    display: block;
}

.spinner {
    width: 52px;
    height: 52px;
    border: 3px solid var(--surface-container-high);
    border-top-color: var(--primary);
    border-right-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 1.5rem;
}

.processing-text {
    font-size: 1rem;
    font-weight: 600;
    color: var(--on-surface);
    margin-bottom: 0.25rem;
}

.processing-subtext {
    font-size: 0.8125rem;
    color: var(--on-surface-variant);
}

/* ---------- Result State ---------- */

.result-state {
    display: none;
    text-align: center;
    padding: 2.5rem;
    background: var(--glass-bg-strong);
    backdrop-filter: blur(12px);
    border-radius: var(--radius-2xl);
    max-width: 480px;
    margin: 2rem auto;
    border: 1px solid var(--outline-variant);
    box-shadow: var(--shadow-lg);
}

.result-state.active {
    display: block;
    animation: scaleIn 0.4s var(--ease-spring) both;
}

.result-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--success-container);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: var(--success);
    font-size: 1.5rem;
}

.result-title {
    font-family: var(--font-headline);
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.result-meta {
    font-size: 0.8125rem;
    color: var(--on-surface-variant);
    margin-bottom: 1.5rem;
}

.result-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* ---------- Options Panel ---------- */

.options-panel {
    max-width: 680px;
    margin: 1.5rem auto;
    background: var(--glass-bg-strong);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-xl);
    padding: 1.5rem 2rem;
    border: 1px solid var(--outline-variant);
}

.options-panel h3 {
    font-family: var(--font-headline);
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 1rem;
}

.option-group {
    margin-bottom: 1.25rem;
}

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

.option-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--on-surface-variant);
    margin-bottom: 0.5rem;
}

.option-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--outline-variant);
    border-radius: var(--radius-md);
    background: var(--surface-container-lowest);
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: var(--on-surface);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.option-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.option-select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--outline-variant);
    border-radius: var(--radius-md);
    background: var(--surface-container-lowest);
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: var(--on-surface);
    outline: none;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M6 8L1 3h10z' fill='%2394A3B8'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    transition: border-color 0.2s;
}

.option-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.radio-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.radio-option {
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 500;
    background: var(--surface-container);
    color: var(--on-surface-variant);
    cursor: pointer;
    transition: all 0.2s var(--ease-out);
    border: 1.5px solid transparent;
    font-family: var(--font-body);
}

.radio-option:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.radio-option.active {
    background: var(--gradient-primary);
    color: var(--on-primary);
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(255, 107, 53, 0.25);
}

/* ---------- File List ---------- */

.file-list {
    max-width: 680px;
    margin: 1rem auto;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--glass-bg-strong);
    border-radius: var(--radius-lg);
    margin-bottom: 0.5rem;
    border: 1px solid var(--outline-variant);
    transition: all 0.2s;
    animation: fadeInUp 0.3s var(--ease-out) both;
}

.file-item:hover {
    border-color: var(--border-glass);
    box-shadow: var(--shadow-sm);
}

.file-item-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.file-item-icon .material-symbols-outlined {
    font-size: 1.125rem;
    color: var(--primary);
}

.file-item-info {
    flex-grow: 1;
    min-width: 0;
}

.file-item-name {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--on-surface);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-item-size {
    font-size: 0.6875rem;
    color: var(--on-surface-variant);
}

.file-item-remove {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--on-surface-variant);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
}

.file-item-remove:hover {
    background: var(--error-container);
    color: var(--error);
}

/* ---------- How It Works ---------- */

.how-it-works {
    background: var(--glass-bg-strong);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-2xl);
    padding: 3rem 2rem;
    margin-top: 3rem;
    border: 1px solid var(--outline-variant);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.step-card {
    text-align: center;
}

.step-number {
    font-family: var(--font-headline);
    font-weight: 800;
    font-size: 2.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.75rem;
}

.step-card h4 {
    font-family: var(--font-headline);
    font-weight: 700;
    font-size: 0.9375rem;
    margin-bottom: 0.5rem;
    color: var(--on-surface);
}

.step-card p {
    font-size: 0.8125rem;
    color: var(--on-surface-variant);
    line-height: 1.5;
}

/* ---------- Pricing ---------- */

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    align-items: start;
}

.pricing-card {
    background: var(--glass-bg-strong);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-2xl);
    padding: 2.5rem 2rem;
    position: relative;
    border: 1px solid var(--outline-variant);
    transition: all 0.3s var(--ease-out);
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: var(--on-primary);
    padding: 0.25rem 1.25rem;
    border-radius: var(--radius-full);
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 2px 8px rgba(255, 107, 53, 0.3);
}

.pricing-tier {
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--primary);
    margin-bottom: 0.25rem;
}

.pricing-name {
    font-family: var(--font-headline);
    font-weight: 800;
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    color: var(--on-surface);
}

.pricing-desc {
    font-size: 0.8125rem;
    color: var(--on-surface-variant);
    margin-bottom: 1.5rem;
}

.pricing-amount {
    font-family: var(--font-headline);
    font-weight: 800;
    font-size: 2.5rem;
    color: var(--on-surface);
}

.pricing-period {
    font-size: 0.8125rem;
    color: var(--on-surface-variant);
    font-weight: 400;
}

.pricing-features {
    list-style: none;
    margin: 1.5rem 0;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: var(--on-surface-variant);
    margin-bottom: 0.625rem;
}

.pricing-features li .material-symbols-outlined {
    font-size: 1rem;
    color: var(--primary);
}

.pricing-features li.disabled {
    opacity: 0.4;
}

.pricing-features li.disabled .material-symbols-outlined {
    color: var(--on-surface-variant);
}

.pricing-card .btn {
    width: 100%;
    margin-top: 0.5rem;
}

/* ---------- Trust Strip ---------- */

.trust-strip {
    display: flex;
    gap: 1.5rem;
    margin-top: 1rem;
}

.trust-block {
    background: var(--glass-bg-strong);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1.5rem;
    flex: 1;
    border: 1px solid var(--outline-variant);
    transition: all 0.3s;
}

.trust-block:hover {
    border-color: var(--border-glass);
    box-shadow: var(--shadow-sm);
}

.trust-value {
    font-family: var(--font-headline);
    font-weight: 800;
    font-size: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.trust-label {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--on-surface-variant);
    font-weight: 600;
}

/* ---------- CTA Section ---------- */

.cta-section {
    background: var(--gradient-dark);
    border-radius: var(--radius-2xl);
    padding: 4rem 2rem;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,107,53,0.15) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.cta-section h2 {
    font-family: var(--font-headline);
    font-weight: 800;
    font-size: 2.25rem;
    margin-bottom: 1rem;
    position: relative;
}

.cta-section p {
    opacity: 0.8;
    max-width: 500px;
    margin: 0 auto 2rem;
    position: relative;
}

/* ---------- Footer ---------- */

.footer {
    background: var(--surface-container);
    padding: 3rem 0 1.5rem;
    margin-top: 4rem;
    border-top: 1px solid var(--outline-variant);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-brand h4 {
    font-family: var(--font-headline);
    font-weight: 800;
    font-size: 1.25rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    font-size: 0.8125rem;
    color: var(--on-surface-variant);
    line-height: 1.6;
}

.footer-col h5 {
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--on-surface);
    margin-bottom: 0.75rem;
}

.footer-col a {
    display: block;
    font-size: 0.8125rem;
    color: var(--on-surface-variant);
    margin-bottom: 0.5rem;
    transition: color 0.2s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--outline-variant);
    font-size: 0.75rem;
    color: var(--on-surface-variant);
}

/* ---------- Auth Pages ---------- */

.auth-container {
    max-width: 440px;
    margin: 3rem auto;
    padding: 2.5rem 2rem;
    background: var(--glass-bg-strong);
    backdrop-filter: blur(12px);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--outline-variant);
    box-shadow: var(--shadow-lg);
    animation: scaleIn 0.4s var(--ease-out) both;
}

.auth-container h2 {
    font-family: var(--font-headline);
    font-weight: 800;
    font-size: 1.75rem;
    text-align: center;
    margin-bottom: 0.5rem;
}

.auth-subtitle {
    text-align: center;
    font-size: 0.875rem;
    color: var(--on-surface-variant);
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--on-surface-variant);
    margin-bottom: 0.375rem;
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--outline-variant);
    background: var(--surface-container-lowest);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: var(--on-surface);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.auth-divider {
    text-align: center;
    position: relative;
    margin: 1.5rem 0;
    font-size: 0.75rem;
    color: var(--on-surface-variant);
    font-weight: 500;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40%;
    height: 1px;
    background: var(--outline-variant);
}

.auth-divider::before { left: 0; }
.auth-divider::after { right: 0; }

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.8125rem;
    color: var(--on-surface-variant);
}

.auth-footer a {
    color: var(--primary);
    font-weight: 600;
}

/* OTP Input */
.otp-container {
    display: flex;
    justify-content: center;
    gap: 0.625rem;
    margin: 1.5rem 0;
}

.otp-input {
    width: 48px;
    height: 56px;
    text-align: center;
    font-size: 1.25rem;
    font-weight: 700;
    font-family: var(--font-headline);
    border: 2px solid var(--outline-variant);
    border-radius: var(--radius-md);
    background: var(--surface-container-lowest);
    color: var(--on-surface);
    outline: none;
    transition: all 0.2s;
}

.otp-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.15);
}

.auth-step {
    display: none;
}

.auth-step.active {
    display: block;
    animation: fadeInUp 0.3s var(--ease-out) both;
}

/* ---------- QR Preview ---------- */

.qr-preview {
    width: 200px;
    height: 200px;
    margin: 1.5rem auto;
    background: var(--surface-container-low);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border: 1px solid var(--outline-variant);
}

.qr-preview img {
    max-width: 100%;
    max-height: 100%;
}

/* ---------- Toast ---------- */

.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--secondary);
    color: white;
    padding: 0.875rem 1.5rem;
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    z-index: 1000;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s var(--ease-out);
    max-width: 400px;
    box-shadow: var(--shadow-lg);
}

.toast.visible {
    transform: translateY(0);
    opacity: 1;
}

.toast.success {
    background: var(--success);
}

.toast.error {
    background: var(--error);
}

/* ---------- Stats Section ---------- */

.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    padding: 2rem 0;
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-family: var(--font-headline);
    font-weight: 800;
    font-size: 2rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--on-surface-variant);
    font-weight: 500;
}

/* ---------- Responsive ---------- */

@media (min-width: 1024px) {
    .nav-search {
        display: block;
    }
}

@media (max-width: 1024px) {
    .hero h1 {
        font-size: 2.75rem;
    }

    .tools-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
        max-width: 640px;
        margin-left: auto;
        margin-right: auto;
    }

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

    .steps-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

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

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .tool-hero h1 {
        font-size: 2rem;
    }

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

    .nav-links {
        display: none;
    }

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

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

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

    .trust-strip {
        flex-direction: column;
    }

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

    .otp-input {
        width: 42px;
        height: 48px;
        font-size: 1.125rem;
    }
}

@media (max-width: 480px) {
    .tools-grid {
        grid-template-columns: 1fr;
    }

    .nav-inner {
        padding: 0.75rem 1rem;
    }

    .hero-search {
        margin: 0 0.5rem;
    }
}