/* =====================================================
   AI Stock Analyzer DE - Mobile-First Responsive CSS
   Optimized for Google Ads Landing Page Quality Score
   ===================================================== */

/* ===== CSS Variables ===== */
:root {
    /* Colors */
    --primary-color: #0066cc;
    --primary-hover: #0052a3;
    --primary-light: #e6f2ff;
    --secondary-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --dark-color: #1a1a1a;
    --light-bg: #f8f9fa;
    --border-color: #e0e0e0;
    --text-color: #333;
    --text-light: #666;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.12);
    
    /* Spacing - Mobile First */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Transitions */
    --transition-fast: all 0.15s ease;
    --transition-base: all 0.3s ease;
}

/* ===== Global Reset - Mobile First ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #ffffff;
    overflow-x: hidden;
    min-height: 100vh;
}

/* ===== Typography - Mobile Optimized ===== */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 28px; margin-bottom: var(--spacing-md); }
h2 { font-size: 24px; }
h3 { font-size: 20px; }
h4 { font-size: 18px; }

p { margin-bottom: var(--spacing-sm); }

/* Tablet Typography */
@media (min-width: 768px) {
    h1 { font-size: 36px; }
    h2 { font-size: 28px; }
    h3 { font-size: 22px; }
}

/* Desktop Typography */
@media (min-width: 1024px) {
    h1 { font-size: 42px; }
    h2 { font-size: 32px; }
    h3 { font-size: 24px; }
}

/* ===== Container - Mobile First ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

@media (min-width: 768px) {
    .container { padding: 0 var(--spacing-md); }
}

@media (min-width: 1024px) {
    .container { padding: 0 var(--spacing-lg); }
}

/* ===== Accessibility & Core Elements ===== */
img, video {
    max-width: 100%;
    height: auto;
    display: block;
}

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

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

a:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

button {
    font-family: inherit;
    font-size: inherit;
    cursor: pointer;
    border: none;
    background: none;
    transition: var(--transition-fast);
    -webkit-tap-highlight-color: transparent;
}

button:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

input, textarea, select {
    font-family: inherit;
    font-size: 16px; /* Prevents zoom on iOS */
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

/* ===== Header - Mobile First ===== */
.site-header {
    background: #ffffff;
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo a {
    display: flex;
    align-items: center;
    color: var(--dark-color);
    font-weight: 700;
    font-size: 18px;
    white-space: nowrap;
}

.logo-icon {
    font-size: 24px;
    margin-right: 6px;
}

.logo-text {
    display: none; /* Hide on mobile */
}

/* Navigation - Mobile First */
.main-nav {
    display: flex;
    gap: 12px;
    font-size: 14px;
}

.main-nav a {
    color: var(--text-color);
    font-weight: 500;
    padding: 6px 8px;
    white-space: nowrap;
}

.main-nav a:hover { color: var(--primary-color); }

/* Tablet Header */
@media (min-width: 768px) {
    .site-header { padding: 16px 0; }
    .logo a { font-size: 22px; }
    .logo-icon { font-size: 32px; margin-right: 10px; }
    .logo-text { display: inline; }
    .main-nav { gap: 20px; font-size: 16px; }
    .main-nav a { padding: 8px 12px; }
}

@media (min-width: 1024px) {
    .main-nav { gap: 25px; }
}

/* ===== Hero Section - Mobile First ===== */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #ffffff;
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.hero-title {
    font-size: 32px;
    margin-bottom: var(--spacing-sm);
    color: #ffffff;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.hero-subtitle {
    font-size: 16px;
    margin-bottom: var(--spacing-sm);
    opacity: 0.95;
}

.hero-disclaimer {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(255,255,255,0.2);
    border-radius: var(--radius-md);
    display: inline-block;
}

@media (min-width: 768px) {
    .hero-section { padding: var(--spacing-xl) 0; }
    .hero-title { font-size: 42px; }
    .hero-subtitle { font-size: 18px; margin-bottom: var(--spacing-md); }
    .hero-disclaimer { font-size: 16px; }
}

@media (min-width: 1024px) {
    .hero-title { font-size: 48px; }
    .hero-subtitle { font-size: 20px; }
}

/* ===== Stock Search Box - Mobile First ===== */
.stock-search-box {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    margin-top: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.search-input-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.search-input {
    width: 100%;
    padding: 14px 16px;
    font-size: 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.analyze-btn {
    width: 100%;
    padding: 14px 24px;
    font-size: 16px;
    font-weight: 600;
    background: var(--primary-color);
    color: #ffffff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 48px;
}

.analyze-btn:hover {
    background: var(--primary-hover);
    box-shadow: var(--shadow-lg);
    transform: translateY(-1px);
}

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

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

.btn-loading { display: inline-block; }

.spinner {
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

.spinner circle {
    stroke: currentColor;
    stroke-dasharray: 50;
    stroke-dashoffset: 25;
}

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

@media (min-width: 768px) {
    .stock-search-box { padding: var(--spacing-lg); }
    .search-input-wrapper { flex-direction: row; }
    .search-input { flex: 1; }
    .analyze-btn { width: auto; min-width: 160px; }
}

/* ===== Progress & Results - Mobile First ===== */
.progress-info {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--primary-light);
    border-radius: var(--radius-md);
    color: var(--primary-color);
    text-align: center;
}

.analysis-result {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--light-bg);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--secondary-color);
}

.result-content {
    color: var(--text-color);
    line-height: 1.8;
}

.result-content h3 {
    color: var(--dark-color);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.result-content ul, .result-content ol {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.result-content li { margin-bottom: 6px; }

/* ===== Email Form - Mobile First ===== */
.email-form {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: #ffffff;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.email-form h3 {
    color: var(--dark-color);
    margin-bottom: var(--spacing-xs);
}

.email-form > p {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.email-transparency {
    background: var(--light-bg);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.email-transparency h4 {
    font-size: 16px;
    margin-bottom: var(--spacing-xs);
}

.transparency-list {
    list-style: none;
    margin-bottom: var(--spacing-sm);
}

.transparency-list li {
    padding: 6px 0;
    font-size: 14px;
}

.privacy-note {
    font-size: 13px;
    color: var(--text-light);
    margin: 0;
}

.privacy-note a { text-decoration: underline; }

#reportForm {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.email-input {
    width: 100%;
    padding: 14px 16px;
    font-size: 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.email-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.submit-btn {
    width: 100%;
    padding: 14px 24px;
    font-size: 16px;
    font-weight: 600;
    background: var(--secondary-color);
    color: #ffffff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    min-height: 48px;
}

.submit-btn:hover {
    background: #218838;
    box-shadow: var(--shadow-lg);
}

@media (min-width: 768px) {
    #reportForm { flex-direction: row; }
    .email-input { flex: 1; }
    .submit-btn { width: auto; min-width: 180px; }
}

/* ===== Service Nature Section - Mobile First ===== */
.service-nature-section {
    padding: var(--spacing-lg) 0;
    background: var(--light-bg);
}

.compliance-notice {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.notice-title {
    text-align: center;
    color: var(--dark-color);
    margin-bottom: var(--spacing-md);
}

.notice-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.notice-item {
    padding: var(--spacing-md);
    background: var(--light-bg);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-color);
}

.notice-item h3 {
    font-size: 18px;
    margin-bottom: var(--spacing-xs);
    color: var(--dark-color);
}

.notice-item p {
    font-size: 14px;
    color: var(--text-color);
    margin: 0;
    line-height: 1.6;
}

.notice-item strong { color: var(--danger-color); }

@media (min-width: 768px) {
    .service-nature-section { padding: var(--spacing-xl) 0; }
    .compliance-notice { padding: var(--spacing-lg); }
    .notice-grid { grid-template-columns: repeat(2, 1fr); }
    .notice-item p { font-size: 15px; }
}

/* ===== Risk Warning Section - Mobile First ===== */
.risk-warning-section {
    padding: var(--spacing-lg) 0;
    background: #fff8e1;
}

.warning-box {
    background: #ffffff;
    border: 3px solid var(--warning-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-lg);
}

.warning-title {
    color: var(--danger-color);
    text-align: center;
    margin-bottom: var(--spacing-md);
    font-size: 24px;
}

.warning-content ul {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.warning-content li {
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    background: #fff3cd;
    border-left: 4px solid var(--danger-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    line-height: 1.6;
}

.warning-content strong {
    color: var(--danger-color);
    display: block;
    margin-bottom: 4px;
}

.warning-footer {
    padding: var(--spacing-sm);
    background: var(--light-bg);
    border-radius: var(--radius-md);
    text-align: center;
    font-size: 14px;
    margin: 0;
}

@media (min-width: 768px) {
    .risk-warning-section { padding: var(--spacing-xl) 0; }
    .warning-box { padding: var(--spacing-lg); }
    .warning-title { font-size: 28px; }
    .warning-content li { font-size: 15px; }
}

/* ===== Features Section - Mobile First ===== */
.features-section {
    padding: var(--spacing-lg) 0;
    background: #ffffff;
}

.section-title {
    text-align: center;
    color: var(--dark-color);
    margin-bottom: var(--spacing-lg);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.feature-card {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    text-align: center;
    transition: var(--transition-base);
    box-shadow: var(--shadow-sm);
}

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

.feature-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    font-size: 18px;
    color: var(--dark-color);
    margin-bottom: var(--spacing-xs);
}

.feature-card p {
    font-size: 14px;
    color: var(--text-color);
    line-height: 1.6;
    margin: 0;
}

.feature-card strong { color: var(--danger-color); }

@media (min-width: 768px) {
    .features-section { padding: var(--spacing-xl) 0; }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .feature-card p { font-size: 15px; }
}

@media (min-width: 1024px) {
    .features-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ===== Footer - Mobile First ===== */
.site-footer {
    background: var(--dark-color);
    color: #ffffff;
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
    color: #ffffff;
    font-size: 18px;
    margin-bottom: var(--spacing-sm);
}

.footer-section p {
    font-size: 14px;
    line-height: 1.6;
    color: rgba(255,255,255,0.8);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: rgba(255,255,255,0.8);
    font-size: 14px;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: #ffffff;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: var(--spacing-md);
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255,255,255,0.6);
    margin-bottom: 8px;
}

.disclaimer-short {
    font-size: 12px;
    margin: 0;
}

@media (min-width: 768px) {
    .site-footer { padding: var(--spacing-xl) 0 var(--spacing-md); }
    .footer-content { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
    .footer-content { grid-template-columns: repeat(3, 1fr); }
}

/* ===== Cookie Consent Banner - Mobile First ===== */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #ffffff;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    z-index: 10000;
    padding: var(--spacing-md);
    transform: translateY(0);
    transition: transform 0.3s ease;
}

.cookie-banner.hidden {
    transform: translateY(100%);
}

.cookie-content p {
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

.cookie-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.btn-accept, .btn-decline {
    width: 100%;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    min-height: 44px;
}

.btn-accept {
    background: var(--primary-color);
    color: #ffffff;
}

.btn-accept:hover {
    background: var(--primary-hover);
}

.btn-decline {
    background: var(--light-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn-decline:hover {
    background: #e9ecef;
}

.cookie-buttons a {
    text-align: center;
    padding: 8px;
    font-size: 13px;
}

@media (min-width: 768px) {
    .cookie-banner { padding: var(--spacing-md) var(--spacing-lg); }
    .cookie-content { max-width: 900px; margin: 0 auto; }
    .cookie-buttons {
        flex-direction: row;
        justify-content: center;
        align-items: center;
    }
    .btn-accept, .btn-decline {
        width: auto;
        min-width: 140px;
    }
}

/* ===== Utility Classes ===== */
.hidden { display: none !important; }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.text-center { text-align: center; }
.loading { pointer-events: none; opacity: 0.6; }

/* ===== Touch Optimizations ===== */
@media (hover: none) and (pointer: coarse) {
    a, button {
        min-height: 44px;
        min-width: 44px;
    }
    .main-nav a { padding: 10px 12px; }
}

/* ===== Performance: Reduce Motion ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ===== Print Styles ===== */
@media print {
    .site-header,
    .cookie-banner,
    .stock-search-box,
    .analyze-btn { display: none; }
    body { font-size: 12pt; line-height: 1.5; }
    .container { max-width: 100%; }
}