/* ==========================================================================
   Tockmarket - Main Stylesheet
   Optimized for performance and accessibility
   ========================================================================== */

/* CSS Variables */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: #151520;
    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b0;
    --text-muted: #707080;
    --accent: #00d4aa;
    --accent-hover: #00ffcc;
    --accent-subtle: rgba(0, 212, 170, 0.1);
    --border: #2a2a35;
    --border-light: #3a3a45;
    --success: #00c853;
    --danger: #ff4757;
    --warning: #ffa502;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.5);
    --radius: 8px;
    --radius-lg: 12px;
    --transition: 0.2s ease;
    --max-width: 1280px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    background: var(--bg-primary);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: clamp(1.125rem, 2vw, 1.375rem); }

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

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

a:hover { color: var(--accent-hover); }

/* Layout */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* ==========================================================================
   Ticker Tape
   ========================================================================== */
#ticker-tape {
    min-height: 46px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

/* ==========================================================================
   Header
   ========================================================================== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    color: var(--text-primary);
    text-decoration: none;
}

.logo-icon { font-size: 1.5rem; }
.logo-text { font-weight: 300; }
.logo-text strong { font-weight: 700; }

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

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius);
    transition: all var(--transition);
}

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

.dropdown-arrow {
    font-size: 0.625rem;
    transition: transform var(--transition);
}

/* Dropdown */
.nav-dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    padding: 0.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all var(--transition);
}

.nav-dropdown:hover .dropdown-menu,
.nav-dropdown:focus-within .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-menu a {
    display: block;
    padding: 0.625rem 1rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    border-radius: var(--radius);
    transition: all var(--transition);
}

.dropdown-menu a:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    padding: 3rem 0 4rem;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 3rem;
    align-items: center;
}

.hero-content h1 {
    margin-bottom: 1rem;
}

.highlight {
    color: var(--accent);
    position: relative;
}

.hero-subtitle {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    max-width: 480px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-widget {
    min-height: 400px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: var(--accent-hover);
    color: var(--bg-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 212, 170, 0.3);
}

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

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent);
    color: var(--text-primary);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* ==========================================================================
   Market Stats Bar
   ========================================================================== */
.market-stats {
    padding: 1rem 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

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

.stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.75rem;
    text-align: center;
}

.stat-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

/* ==========================================================================
   Section Styles
   ========================================================================== */
.section-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.section-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    background: var(--accent-subtle);
    border-radius: 100px;
    margin-bottom: 1rem;
}

.section-header h2 {
    margin-bottom: 0.75rem;
}

.section-header p {
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================================================
   Screener Section
   ========================================================================== */
.screener-section {
    padding: 4rem 0;
}

.screener-widget {
    min-height: 600px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

/* Widget Placeholder */
.widget-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: inherit;
    color: var(--text-muted);
}

.loader {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

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

/* ==========================================================================
   Education Section
   ========================================================================== */
.education-section {
    padding: 4rem 0;
    background: var(--bg-secondary);
}

.guides-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.guide-card {
    padding: 1.75rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

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

.guide-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.guide-card h3 {
    margin-bottom: 0.75rem;
}

.guide-card h3 a {
    color: var(--text-primary);
}

.guide-card h3 a:hover {
    color: var(--accent);
}

.guide-card p {
    font-size: 0.9375rem;
    margin-bottom: 1rem;
}

.guide-meta {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.guide-card-cta {
    background: var(--accent-subtle);
    border-color: var(--accent);
}

/* ==========================================================================
   Technical Analysis Section
   ========================================================================== */
.ta-section {
    padding: 4rem 0;
}

.ta-widget {
    min-height: 500px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

/* ==========================================================================
   CTA Section
   ========================================================================== */
.cta-section {
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    margin-bottom: 1rem;
}

.cta-content p {
    margin-bottom: 2rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    padding: 4rem 0 2rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    margin-top: 1rem;
    font-size: 0.9375rem;
}

.footer-nav h4 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

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

.footer-nav li {
    margin-bottom: 0.5rem;
}

.footer-nav a {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.footer-nav a:hover {
    color: var(--accent);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    text-align: center;
}

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

.disclaimer {
    margin-top: 0.75rem;
    font-size: 0.8125rem;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
    }
    
    .hero-content {
        text-align: center;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .guides-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-list {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 1rem;
        background: var(--bg-secondary);
        border-top: 1px solid var(--border);
        transform: translateX(100%);
        transition: transform 0.3s ease;
    }
    
    .nav-list.active {
        transform: translateX(0);
    }
    
    .nav-link {
        padding: 1rem;
        border-radius: 0;
        border-bottom: 1px solid var(--border);
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        background: var(--bg-tertiary);
        margin-top: 0.5rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .guides-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 2rem 0 3rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }
    
    .stat-card {
        padding: 0.5rem;
    }
}

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

/* ==========================================================================
   Print Styles
   ========================================================================== */
@media print {
    .header,
    .ticker-tape,
    .hero-widget,
    .screener-widget,
    .ta-widget,
    .cta-section {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
}