/**
 * Custom styles for TradingBot Landing Page
 * Dark Mode Design
 */

:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --secondary-color: #8b5cf6;
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --success-color: #10b981;
    --error-color: #ef4444;
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-secondary: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Header & Navigation */
.navbar {
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Language Switcher */
.language-switcher {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.lang-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.4rem 0.8rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.875rem;
    font-weight: 500;
}

.lang-btn:hover {
    background: var(--bg-card);
    border-color: var(--primary-color);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.lang-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 4rem 0;
    background: var(--gradient-secondary);
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #f1f5f9 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-secondary);
}

.feature-item i {
    color: var(--primary-color);
    font-size: 1.25rem;
}

/* Login Section */
.login-section {
    background: var(--bg-card);
    border-radius: 1rem;
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.login-section:hover {
    box-shadow: 0 25px 50px -12px rgba(99, 102, 241, 0.25);
    border-color: var(--primary-color);
}

.login-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-subtitle {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
}

.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    background: var(--bg-dark);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.btn-primary {
    width: 100%;
    padding: 0.875rem 1.5rem;
    background: var(--gradient-primary);
    border: none;
    border-radius: 0.5rem;
    color: white;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 0.5rem;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(99, 102, 241, 0.4);
}

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

/* Links */
.forgot-password {
    display: block;
    text-align: center;
    margin-top: 1rem;
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.3s ease;
}

.forgot-password:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .login-section {
        padding: 2rem 1.5rem;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 1rem;
    }
    
    .language-switcher {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .login-title {
        font-size: 1.5rem;
    }
    
    .login-section {
        padding: 1.5rem 1rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.login-section {
    animation: fadeInUp 0.6s ease-out;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-darker);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-card);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-color);
}