/* style.css - Premium minimal design for Doctor Prescription Reader */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
    /* Color Palette - Light Mode Default */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    
    --primary: #1e6b52;
    --primary-light: #2d8266;
    --primary-rgb: 30, 107, 82;
    --accent: #0ea5e9;
    --accent-rgb: 14, 165, 233;
    
    --border-color: #e2e8f0;
    --card-shadow: 0 10px 30px -10px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.02);
    --card-shadow-hover: 0 20px 40px -15px rgba(15, 23, 42, 0.08), 0 1px 5px rgba(15, 23, 42, 0.03);
    
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;
    
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-heading: 'Plus Jakarta Sans', var(--font-sans);
}

/* Dark Mode Variables Override */
.dark-mode {
    --bg-primary: #080c14;
    --bg-secondary: #0f172a;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    
    --primary: #34d399;
    --primary-light: #6ee7b7;
    --primary-rgb: 52, 211, 153;
    --accent: #38bdf8;
    
    --border-color: #1e293b;
    --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.1);
    --card-shadow-hover: 0 20px 40px -15px rgba(0, 0, 0, 0.5), 0 1px 5px rgba(0, 0, 0, 0.2);
}

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

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-primary);
}

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

a:hover {
    color: var(--primary-light);
}

/* Layout Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header Styles */
.site-header {
    background-color: rgba(var(--bg-secondary) === #ffffff ? 255, 255, 255 : 15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--text-primary);
    user-select: none;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    border-radius: 10px;
    font-size: 1.2rem;
    box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.2);
}

.logo-text {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Header Menu */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-secondary);
    position: relative;
    padding: 6px 0;
}

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

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

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

/* Header Controls */
.header-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

.icon-btn {
    background: none;
    border: 1px solid var(--border-color);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.icon-btn:hover {
    background-color: rgba(var(--primary-rgb), 0.05);
    border-color: var(--primary);
    color: var(--primary);
}

/* Dropdowns */
.lang-dropdown-wrapper {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-btn:hover {
    border-color: var(--primary);
    color: var(--text-primary);
}

.lang-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--card-shadow-hover);
    width: 220px;
    max-height: 350px;
    overflow-y: auto;
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
    transition: all var(--transition-fast);
    z-index: 1000;
}

.lang-dropdown-menu.show {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.lang-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 10px 16px;
    border: none;
    background: none;
    text-align: left;
    font-family: var(--font-sans);
    font-size: 0.88rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.lang-item:hover {
    background-color: rgba(var(--primary-rgb), 0.05);
    color: var(--text-primary);
}

.lang-item.active {
    font-weight: 600;
    color: var(--primary);
    background-color: rgba(var(--primary-rgb), 0.08);
}

/* Mobile Menu Button */
.mobile-menu-toggle {
    display: none;
}

/* Hero Section */
.hero-section {
    padding: 64px 0 32px 0;
    text-align: center;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    background-color: rgba(var(--primary-rgb), 0.08);
    border: 1px solid rgba(var(--primary-rgb), 0.15);
    border-radius: var(--radius-full);
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
    font-family: var(--font-sans);
}

.badge svg {
    color: var(--primary);
}

.hero-section h1 {
    font-size: 2.8rem;
    letter-spacing: -0.02em;
    max-width: 800px;
    margin: 0 auto 16px auto;
}

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

/* Main Tool Workspace Container */
.tool-workspace {
    max-width: 800px;
    margin: 32px auto 64px auto;
}

/* Upload & Chat Panel - Card Style Matching Mockup */
.interactive-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--card-shadow);
    padding: 32px;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

/* Upload Interface */
.upload-interface {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 32px 24px;
    border: 2px dashed rgba(var(--primary-rgb), 0.2);
    border-radius: var(--radius-md);
    background-color: rgba(var(--primary-rgb), 0.015);
    transition: all var(--transition-normal);
    text-align: center;
    cursor: pointer;
}

.upload-interface:hover, .upload-interface.dragover {
    background-color: rgba(var(--primary-rgb), 0.04);
    border-color: var(--primary);
}

.upload-icon-circle {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    background-color: var(--danger);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.8rem;
    margin-bottom: 24px;
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.35);
    transition: transform var(--transition-normal);
}

.upload-interface:hover .upload-icon-circle {
    transform: translateY(-4px);
}

.upload-interface h3 {
    font-size: 1.4rem;
    margin-bottom: 8px;
}

.upload-interface p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    max-width: 320px;
    margin-bottom: 24px;
}

.upload-buttons {
    display: flex;
    gap: 16px;
    width: 100%;
    max-width: 360px;
}

.btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary {
    background-color: var(--primary);
    border: 1px solid var(--primary);
    color: white;
}

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

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

.btn-secondary:hover {
    background-color: rgba(var(--primary-rgb), 0.05);
    border-color: var(--primary);
    color: var(--primary);
}

/* Chat Prompt Input Panel */
.chat-prompt-panel {
    margin-top: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chat-input-wrapper {
    display: flex;
    align-items: center;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    padding: 6px 6px 6px 16px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.chat-input-wrapper:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.15);
}

.chat-input-wrapper input {
    flex: 1;
    border: none;
    background: none;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--text-primary);
    padding: 8px 0;
    outline: none;
}

.chat-input-wrapper input::placeholder {
    color: var(--text-muted);
}

.chat-attachment-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border-radius: var(--radius-full);
    margin-right: 8px;
    transition: background-color var(--transition-fast);
}

.chat-attachment-btn:hover {
    background-color: rgba(0,0,0,0.05);
}

.chat-send-btn {
    background-color: var(--primary);
    color: white;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1rem;
    transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.chat-send-btn:hover {
    background-color: var(--primary-light);
    transform: scale(1.05);
}

.chat-footnote {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
}

/* File Hidden Inputs */
.hidden-file-input {
    display: none;
}

/* Processing Loader Overlay */
.loader-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(var(--bg-secondary) === #ffffff ? 255, 255, 255 : 15, 23, 42, 0.9);
    backdrop-filter: blur(8px);
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10;
    animation: fadeIn var(--transition-fast);
}

.pulse-scanner {
    position: relative;
    width: 80px;
    height: 80px;
    border-radius: var(--radius-md);
    border: 2px solid var(--primary);
    overflow: hidden;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pulse-scanner svg {
    font-size: 2.2rem;
    color: var(--primary);
}

.pulse-scanner::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(to right, transparent, var(--primary), transparent);
    animation: scanAnimation 2s infinite ease-in-out;
}

.loader-overlay p {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1.1rem;
}

@keyframes scanAnimation {
    0% { top: 0%; }
    50% { top: 100%; }
    100% { top: 0%; }
}

/* Analysis Output Panel */
.analysis-output {
    display: none;
    flex-direction: column;
    gap: 32px;
    margin-top: 32px;
}

/* Preview Image Card */
.preview-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    gap: 16px;
    align-items: center;
}

.preview-thumbnail {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    border: 1px solid var(--border-color);
}

.preview-info {
    flex: 1;
}

.preview-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.preview-size {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.preview-remove {
    cursor: pointer;
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.preview-remove:hover {
    color: var(--danger);
}

/* Section Card Layout */
.section-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--card-shadow);
    padding: 32px;
    transition: background-color var(--transition-normal);
}

.section-title-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.section-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background-color: rgba(var(--primary-rgb), 0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.medicine-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.medicine-card {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    background-color: var(--bg-primary);
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.medicine-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
}

.medicine-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 8px;
}

.med-name {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--primary);
}

.med-dosage-tag {
    background-color: rgba(var(--accent-rgb), 0.08);
    border: 1px solid rgba(var(--accent-rgb), 0.15);
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: var(--radius-full);
}

.med-meta-row {
    display: flex;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
}

.med-meta-item strong {
    color: var(--text-primary);
}

.med-detail {
    font-size: 0.9rem;
    margin-top: 8px;
}

.med-detail strong {
    color: var(--text-primary);
    display: block;
    margin-bottom: 2px;
}

/* Warnings and Precautions Callout */
.warning-box {
    background-color: rgba(239, 68, 68, 0.04);
    border: 1px solid rgba(239, 68, 68, 0.15);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-top: 16px;
}

.warning-header {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--danger);
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 8px;
}

.warning-box ul {
    list-style-type: none;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.warning-box li {
    position: relative;
    padding-left: 16px;
    margin-bottom: 8px;
}

.warning-box li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--danger);
    font-weight: bold;
}

/* AI Health Chat Window */
.chat-window {
    display: flex;
    flex-direction: column;
    height: 480px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-primary);
    overflow: hidden;
}

.chat-history {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.chat-bubble {
    max-width: 80%;
    padding: 12px 18px;
    border-radius: 18px;
    font-size: 0.92rem;
    line-height: 1.5;
}

.chat-bubble-user {
    align-self: flex-end;
    background-color: var(--primary);
    color: white;
    border-bottom-right-radius: 4px;
}

.chat-bubble-model {
    align-self: flex-start;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
    border: 1px solid var(--border-color);
}

.chat-typing-indicator {
    display: none;
    align-self: flex-start;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 12px 18px;
    border-radius: 18px;
    gap: 4px;
}

.dot {
    width: 6px;
    height: 6px;
    background-color: var(--text-muted);
    border-radius: 50%;
    animation: typingPulse 1.4s infinite ease-in-out;
}

.dot:nth-child(2) { animation-delay: 0.2s; }
.dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingPulse {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

.chat-footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 12px 16px;
}

/* Landing Informational Sections */
.landing-section {
    padding: 80px 0;
    border-top: 1px solid var(--border-color);
}

.section-heading {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 56px auto;
}

.section-heading h2 {
    font-size: 2.2rem;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.section-heading p {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

/* Feature Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.feature-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px;
    box-shadow: var(--card-shadow);
    transition: all var(--transition-normal);
}

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

.feature-icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background-color: rgba(var(--primary-rgb), 0.08);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 24px;
}

.feature-box h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.feature-box p {
    color: var(--text-secondary);
    font-size: 0.92rem;
}

/* Guide Grid */
.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 32px;
}

.guide-step {
    text-align: center;
    position: relative;
}

.guide-num {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background-color: var(--primary);
    color: white;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px auto;
    box-shadow: 0 4px 10px rgba(var(--primary-rgb), 0.2);
}

.guide-step h3 {
    font-size: 1.15rem;
    margin-bottom: 8px;
}

.guide-step p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    max-width: 240px;
    margin: 0 auto;
}

/* Benefits Grid */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 20px;
    border-radius: var(--radius-sm);
}

.benefit-check {
    color: var(--success);
    font-size: 1.2rem;
    display: flex;
    align-items: center;
}

.benefit-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* FAQ Layout */
.faq-list {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: border-color var(--transition-fast);
}

.faq-item:hover {
    border-color: var(--primary);
}

.faq-question {
    width: 100%;
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
    border: none;
    text-align: left;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--text-primary);
    cursor: pointer;
}

.faq-answer {
    padding: 0 24px 24px 24px;
    color: var(--text-secondary);
    font-size: 0.92rem;
    display: none;
}

.faq-arrow {
    font-size: 0.8rem;
    transition: transform var(--transition-fast);
}

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

/* Footer Styles */
.site-footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 64px 0 32px 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 48px;
}

.footer-brand {
    max-width: 320px;
}

.footer-brand p {
    margin-top: 12px;
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: 64px;
    flex-wrap: wrap;
}

.footer-column h4 {
    color: var(--text-primary);
    font-size: 0.95rem;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.footer-column li {
    margin-bottom: 10px;
}

.footer-column a {
    color: var(--text-secondary);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 32px;
    flex-wrap: wrap;
    gap: 20px;
}

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

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

/* Responsive Breakpoints */
@media (max-width: 768px) {
    .nav-menu {
        display: flex !important;
        gap: 16px !important;
    }
    
    .nav-menu .nav-link {
        font-size: 0.85rem !important;
    }
    
    @media (max-width: 576px) {
        .nav-menu .nav-link {
            display: none !important;
        }
        .nav-menu .nav-link[href*="other-tools"] {
            display: inline-block !important;
        }
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero-section h1 {
        font-size: 2.2rem;
    }
    
    .hero-section p {
        font-size: 1rem;
    }
    
    .upload-buttons {
        flex-direction: column;
    }
    
    .interactive-panel {
        padding: 20px;
    }
    
    .section-card {
        padding: 20px;
    }
    
    .footer-top {
        flex-direction: column;
        gap: 30px;
    }
    
    .footer-links {
        gap: 32px;
        flex-direction: column;
    }
}

/* Mobile Header Fine-Tuning */
@media (max-width: 576px) {
    .site-header .container {
        padding: 0 16px;
        height: 64px;
    }
    
    .logo {
        font-size: 0.95rem;
        gap: 6px;
    }
    
    .logo-icon {
        width: 28px;
        height: 28px;
        font-size: 0.9rem;
        border-radius: 8px;
    }
    
    .logo-text {
        max-width: 140px;
        line-height: 1.15;
        font-weight: 700;
        display: inline-block;
    }
    
    .header-controls {
        gap: 6px;
    }
    
    .lang-btn {
        padding: 6px 8px;
        font-size: 0.85rem;
        gap: 4px;
    }
    
    .lang-btn-text {
        display: none;
    }
    
    .lang-btn-icon {
        display: inline !important;
    }
    
    .icon-btn {
        width: 34px;
        height: 34px;
    }
}

/* Guide Article Styles */
.guide-article {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--card-shadow);
    padding: 40px;
    margin: 40px 0;
    transition: background-color var(--transition-normal);
}

.guide-article h2 {
    color: var(--primary);
    font-size: 1.8rem;
    margin-bottom: 20px;
    font-family: var(--font-heading);
    line-height: 1.3;
}

.guide-article h3 {
    color: var(--text-primary);
    font-size: 1.4rem;
    margin-top: 32px;
    margin-bottom: 16px;
    font-family: var(--font-heading);
    border-left: 4px solid var(--primary);
    padding-left: 12px;
}

.guide-article h4 {
    color: var(--text-primary);
    font-size: 1.15rem;
    margin-top: 24px;
    margin-bottom: 12px;
    font-family: var(--font-heading);
}

.guide-article p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 18px;
    font-size: 1rem;
}

.guide-article ul, .guide-article ol {
    margin-bottom: 24px;
    padding-left: 24px;
}

.guide-article li {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 8px;
}

.guide-article strong {
    color: var(--text-primary);
}

.guide-article-section {
    margin-top: 40px;
}

/* Comparison Table Styles */
.comparison-table-wrapper {
    overflow-x: auto;
    margin: 32px 0;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.95rem;
    background-color: var(--bg-primary);
    min-width: 600px;
}

.comparison-table caption {
    padding: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    background-color: rgba(var(--primary-rgb), 0.05);
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    background-color: rgba(var(--primary-rgb), 0.08);
    color: var(--primary);
    font-weight: 600;
    padding: 14px 18px;
    border-bottom: 2px solid var(--border-color);
}

.comparison-table td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    line-height: 1.5;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table tr:nth-child(even) {
    background-color: rgba(var(--primary-rgb), 0.02);
}

.comparison-table td strong {
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .guide-article {
        padding: 24px;
        margin: 24px 0;
    }
    
    .guide-article h2 {
        font-size: 1.5rem;
    }
    
    .guide-article h3 {
        font-size: 1.25rem;
    }
}

/* E-E-A-T Author Box Styles */
.author-box-card {
    display: flex;
    gap: 32px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--card-shadow);
    align-items: center;
    transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.author-avatar-col {
    flex-shrink: 0;
}

.author-img {
    width: 110px;
    height: 110px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 3px solid rgba(var(--primary-rgb), 0.2);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.author-info-col {
    flex: 1;
}

.author-name {
    font-size: 1.4rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.author-role {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: block;
    margin-bottom: 12px;
}

.author-bio {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.author-meta-links {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.author-work-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    padding: 10px 20px;
}

.author-socials {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-socials .social-link {
    color: var(--text-muted);
    transition: color var(--transition-fast), transform var(--transition-fast);
    display: flex;
    align-items: center;
}

.author-socials .social-link:hover {
    color: var(--primary);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .author-box-card {
        flex-direction: column;
        text-align: center;
        gap: 24px;
        padding: 24px;
    }
    
    .author-meta-links {
        flex-direction: column;
        align-items: center;
        gap: 16px;
    }
}