/* ==========================================================
   imgtotxt.io - Unique Futuristic SaaS & Glassmorphism Design
   ========================================================== */

:root {
    --bg-base: #07090e;
    --bg-surface: #121824;
    --bg-glass: rgba(18, 24, 36, 0.75);
    --border-glass: rgba(255, 255, 255, 0.08);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent-glow: #6366f1;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
    --accent-solid: #6366f1;
    --accent-hover: #4f46e5;
    --danger: #f43f5e;
    --success: #10b981;
    --radius-lg: 20px;
    --radius-md: 12px;
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.15);
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-heading: 'Poppins', sans-serif;
}

html.light {
    --bg-base: #f1f5f9;
    --bg-surface: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.85);
    --border-glass: rgba(0, 0, 0, 0.08);
    --text-main: #0f172a;
    --text-muted: #64748b;
    --shadow-glow: 0 10px 25px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-base);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    position: relative;
}

/* Background Ambient Glow */
body::before {
    content: '';
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 300px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, rgba(168, 85, 247, 0.05) 70%, transparent 100%);
    z-index: -1;
    pointer-events: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
.site-header {
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-glass);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    text-decoration: none;
    letter-spacing: -0.5px;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text-main);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.theme-btn, .menu-btn {
    background: var(--bg-surface);
    border: 1px solid var(--border-glass);
    border-radius: 50%;
    width: 42px;
    height: 42px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--text-main);
    transition: transform 0.2s;
}

.theme-btn:hover, .menu-btn:hover { transform: scale(1.05); }
.menu-btn { display: none; }

@media (max-width: 768px) {
    .menu-btn { display: flex; }
    .nav-links {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--bg-surface);
        flex-direction: column;
        padding: 2rem;
        border-bottom: 1px solid var(--border-glass);
        box-shadow: var(--shadow-glow);
    }
    .nav-links.active { display: flex; }
}

/* Hero Section */
.hero-section {
    text-align: center;
    margin: 3.5rem 0 2.5rem;
}

.hero-section h1 {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 0.75rem;
}

.hero-section h1 span {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-section p {
    color: var(--text-muted);
    font-size: 1.15rem;
    max-width: 600px;
    margin: 0 auto 1.25rem;
}

.privacy-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    background: var(--bg-surface);
    border: 1px solid var(--border-glass);
    padding: 0.4rem 1rem;
    border-radius: 30px;
    box-shadow: var(--shadow-glow);
}

/* Main Workspace Card (Command Center Layout) */
.ocr-workspace {
    background: var(--bg-surface);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-glow);
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 2rem;
    margin-bottom: 5rem;
}

@media (max-width: 900px) {
    .ocr-workspace { grid-template-columns: 1fr; padding: 1.25rem; }
}

.workspace-left, .workspace-right {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.panel-title {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Drop Zone */
.drop-zone {
    border: 2px dashed var(--border-glass);
    border-radius: var(--radius-md);
    padding: 3rem 1.5rem;
    text-align: center;
    cursor: pointer;
    background: rgba(99, 102, 241, 0.02);
    transition: all 0.3s ease;
}

.drop-zone:hover, .drop-zone:focus {
    border-color: var(--accent-solid);
    background: rgba(99, 102, 241, 0.05);
    outline: none;
}

.drop-message svg { stroke: var(--accent-solid); margin-bottom: 1rem; }
.drop-message p { font-size: 0.95rem; margin-bottom: 0.3rem; }
.browse-link { color: var(--accent-solid); font-weight: 600; text-decoration: underline; }
.sub-text { font-size: 0.8rem; color: var(--text-muted); }

/* Controls */
.control-group label { display: block; font-size: 0.8rem; font-weight: 600; margin-bottom: 0.5rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }

select {
    width: 100%;
    padding: 0.85rem 1rem;
    background: var(--bg-base);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    cursor: pointer;
}

.preview-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-base);
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-glass);
}

.preview-container img { width: 48px; height: 48px; object-fit: cover; border-radius: 8px; }
.file-meta { flex-grow: 1; margin-left: 1rem; overflow: hidden; }
#fileName { display: block; font-size: 0.85rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#fileDetails { display: block; font-size: 0.75rem; color: var(--text-muted); }
.text-btn { background: none; border: none; color: var(--danger); font-size: 0.8rem; cursor: pointer; font-weight: 500; }

.btn {
    width: 100%;
    padding: 0.9rem 1.25rem;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s ease;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.primary-btn { background: var(--accent-gradient); color: #fff; box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3); }
.primary-btn:hover:not(:disabled) { transform: translateY(-1px); filter: brightness(1.1); }

.secondary-btn { background: var(--bg-base); border: 1px solid var(--border-glass); color: var(--text-main); }
.secondary-btn:hover:not(:disabled) { background: var(--border-glass); }

.danger-btn { background: rgba(244, 63, 94, 0.1); color: var(--danger); border: 1px solid rgba(244, 63, 94, 0.2); }
.danger-btn:hover { background: var(--danger); color: #fff; }

/* Progress Panel */
.progress-container { background: var(--bg-base); padding: 1rem; border-radius: var(--radius-md); border: 1px solid var(--border-glass); }
.progress-bar-wrapper { width: 100%; height: 6px; background: var(--border-glass); border-radius: 3px; overflow: hidden; margin-bottom: 0.5rem; }
.progress-bar { width: 0%; height: 100%; background: var(--accent-gradient); transition: width 0.2s; }
.progress-status { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; }

/* Textarea & Stats */
textarea {
    width: 100%;
    height: 310px;
    background: var(--bg-base);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 1rem;
    color: var(--text-main);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    resize: vertical;
}

.text-stats {
    display: flex;
    gap: 2rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.action-buttons { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0.75rem; }
@media (max-width: 600px) { .action-buttons { grid-template-columns: 1fr; } }

/* Content Sections */
.content-section { margin-bottom: 4rem; }
.content-section h2 { font-family: var(--font-heading); font-size: 2rem; margin-bottom: 2rem; text-align: center; letter-spacing: -0.5px; }

.grid-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.25rem; }
.card { background: var(--bg-surface); border: 1px solid var(--border-glass); padding: 1.75rem; border-radius: var(--radius-lg); transition: transform 0.2s; }
.card:hover { transform: translateY(-3px); border-color: rgba(99, 102, 241, 0.3); }
.card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; color: var(--text-main); }
.card p { font-size: 0.9rem; color: var(--text-muted); }

.steps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.25rem; }
.step { background: var(--bg-surface); border: 1px solid var(--border-glass); padding: 1.75rem; border-radius: var(--radius-lg); }
.step span { font-size: 2.2rem; font-weight: 700; background: var(--accent-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; display: block; margin-bottom: 0.5rem; }
.step h3 { font-size: 1.05rem; margin-bottom: 0.3rem; }
.step p { font-size: 0.85rem; color: var(--text-muted); }

.faq-list details { background: var(--bg-surface); border: 1px solid var(--border-glass); border-radius: var(--radius-md); margin-bottom: 1rem; padding: 1.25rem; }
.faq-list summary { font-weight: 600; cursor: pointer; color: var(--text-main); }
.faq-list p { margin-top: 0.75rem; font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }

/* Footer */
.site-footer { background: var(--bg-surface); border-top: 1px solid var(--border-glass); padding: 2.5rem 0; margin-top: auto; font-size: 0.9rem; color: var(--text-muted); }
.footer-content { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1.5rem; }
.footer-links { display: flex; gap: 2rem; flex-wrap: wrap; }
.footer-links a { color: var(--text-muted); text-decoration: none; transition: color 0.2s; }
.footer-links a:hover { color: var(--text-main); }

.hidden { display: none !important; }