/* Stock AI - Black Theme */

:root {
    --primary: #00d4ff;
    --primary-dark: #00a8cc;
    --accent: #00d4ff;
    --dark: #0a0a0a;
    --dark-light: #141414;
    --dark-lighter: #1f1f1f;
    --gray: #888888;
    --gray-light: #aaaaaa;
    --light: #ffffff;
    --success: #00c853;
    --danger: #ff5252;
    --warning: #ffd740;
    --gradient: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.7);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--light);
    background: var(--dark);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--light);
    text-decoration: none;
}

.logo-img {
    width: 36px;
    height: 36px;
    object-fit: contain;
}

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

.nav a {
    text-decoration: none;
    color: var(--gray-light);
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient);
    color: var(--dark);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.4);
}

.btn-download {
    background: var(--light);
    color: var(--dark);
    font-size: 1.1rem;
    padding: 16px 32px;
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.3);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.1rem;
}

/* Hero Section */
.hero {
    padding: 140px 0 80px;
    background: var(--dark);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at top right, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
                radial-gradient(ellipse at bottom left, rgba(0, 168, 204, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.2);
    color: var(--primary);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--light);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-cta {
    margin-bottom: 2rem;
}

.hero-note {
    color: var(--gray);
    font-size: 0.9rem;
    margin-top: 1rem;
}

.hero-note i {
    color: var(--success);
}

.trust-badges {
    display: flex;
    gap: 2rem;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray);
    font-size: 0.9rem;
}

.trust-item i {
    color: var(--primary);
}

/* Phone Mockup */
.hero-visual {
    display: flex;
    justify-content: center;
}

.phone-frame {
    width: 300px;
    height: 600px;
    background: var(--dark-lighter);
    border-radius: 40px;
    padding: 10px;
    box-shadow: var(--shadow-lg);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.phone-screen {
    background: var(--dark-light);
    border-radius: 30px;
    height: 100%;
    padding: 20px;
    overflow: hidden;
}

.app-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.app-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 15px;
}

.tab {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    background: rgba(255,255,255,0.05);
    color: var(--gray);
}

.tab.active {
    background: var(--primary);
    color: var(--dark);
}

.stock-card {
    background: rgba(255,255,255,0.03);
    border-radius: 12px;
    padding: 15px;
    margin-bottom: 12px;
    border: 1px solid rgba(255,255,255,0.05);
}

.stock-name {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--light);
}

.stock-price {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 5px 0;
    color: var(--light);
}

.change {
    font-size: 0.9rem;
    margin-left: 8px;
}

.change.up {
    color: var(--success);
}

.change.down {
    color: var(--danger);
}

.stock-bar {
    height: 4px;
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
    margin-top: 8px;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    background: var(--success);
    border-radius: 2px;
}

.bar-fill.down {
    background: var(--danger);
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--dark-light);
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--light);
}

.section-subtitle {
    text-align: center;
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 2rem;
    border-radius: 16px;
    background: var(--dark);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 212, 255, 0.2);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.feature-icon i {
    font-size: 1.5rem;
    color: var(--primary);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--light);
}

.feature-card p {
    color: var(--gray);
    line-height: 1.7;
}

/* How It Works */
.how-it-works {
    padding: 100px 0;
    background: var(--dark);
}

.how-it-works h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--light);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.step {
    display: flex;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--dark-light);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--gradient);
    color: var(--dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--light);
}

.step-content p {
    color: var(--gray);
}

/* Download Section */
.download-section {
    padding: 100px 0;
    background: var(--dark-light);
    text-align: center;
}

.download-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--light);
}

.download-center {
    margin: 3rem 0;
}

.store-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--light);
    color: var(--dark);
    padding: 16px 32px;
    border-radius: 12px;
    text-decoration: none;
    transition: transform 0.3s, box-shadow 0.3s;
}

.store-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.3);
}

.store-btn i {
    font-size: 2.5rem;
}

.app-store-large i {
    font-size: 3rem;
}

.btn-text {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.btn-text .small {
    font-size: 0.875rem;
    opacity: 0.7;
}

.btn-text .big {
    font-size: 1.5rem;
    font-weight: 700;
}

.download-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.feature-tag {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray);
}

.feature-tag i {
    color: var(--primary);
}

/* Disclaimer Section */
.disclaimer-section {
    padding: 60px 0;
    background: var(--dark);
}

.disclaimer-box {
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.disclaimer-box i {
    color: var(--warning);
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.disclaimer-box p {
    color: var(--gray-light);
    margin: 0;
    font-size: 0.9rem;
}

/* Footer */
.footer {
    padding: 60px 0 30px;
    background: var(--dark);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-brand p {
    color: var(--gray);
    max-width: 300px;
}

.footer-links h4 {
    margin-bottom: 1rem;
    font-size: 1rem;
    color: var(--light);
}

.footer-links a {
    display: block;
    color: var(--gray);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: color 0.3s;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 2rem;
    text-align: center;
}

.footer-bottom p {
    color: var(--gray);
    margin-bottom: 0.5rem;
}

.disclaimer {
    font-size: 0.75rem;
    opacity: 0.6;
}

/* Text utilities */
.text-center {
    text-align: center;
}

.mt-4 {
    margin-top: 2rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        margin: 0 auto 2rem;
    }
    
    .trust-badges {
        justify-content: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand p {
        max-width: none;
    }
}