/* ======================================
   Millennium Capital Investment Bank
   Production-Ready CSS Framework
   ====================================== */

/* CSS Custom Properties */
:root {
    --primary-blue: #001f3f;
    --accent-green: #00c851;
    --accent-green-hover: #00a844;
    --light-gray: #f8f9fa;
    --dark-gray: #333;
    --white: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.18);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --error: #e53e3e;
    --success: #38a169;
    --warning: #d69e2e;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 6rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 15px;
    --radius-xl: 20px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
}

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

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-family);
    line-height: var(--line-height-base);
    color: var(--text-primary);
    overflow-x: hidden;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

/* Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-blue);
    color: var(--white);
    padding: 8px;
    text-decoration: none;
    border-radius: 0 0 var(--radius-sm) 0;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* focus-visible for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--accent-green);
    outline-offset: 2px;
}

/* Selection */
::selection {
    background: var(--accent-green);
    color: var(--white);
}

/* ======================================
   Navigation
   ====================================== */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
    letter-spacing: -0.5px;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.logo i {
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
    flex-wrap: wrap;
}

.nav-link {
    text-decoration: none;
    color: var(--white);
    font-weight: 500;
    transition: all 0.3s ease;
    font-size: 0.95rem;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-green);
    transition: width 0.3s ease;
}

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

.nav-link:hover {
    color: var(--accent-green);
}

.online-banking-btn {
    background: var(--accent-green);
    color: var(--white);
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all 0.3s ease;
    white-space: nowrap;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.online-banking-btn:hover {
    background: var(--accent-green-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 200, 81, 0.3);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    width: 24px;
    height: 2px;
    background: var(--white);
    display: block;
    transition: all 0.3s ease;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
}

.hamburger::before {
    transform: translateY(-8px);
}

.hamburger::after {
    transform: translateY(8px);
}

/* ======================================
   Hero Section
   ====================================== */
.hero {
    position: relative;
    min-height: 100vh;
    overflow: hidden;
    padding-top: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-video-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.5);
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 31, 63, 0.6) 0%, rgba(0, 20, 40, 0.8) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: var(--white);
    max-width: 800px;
    padding: 0 var(--spacing-lg);
    animation: fadeInUp 1s ease;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero p {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
    font-weight: 300;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ======================================
   Buttons
   ====================================== */
.btn {
    padding: 1.1rem 2.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--accent-green);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 200, 81, 0.3);
}

.btn-primary:hover {
    background: var(--accent-green-hover);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 200, 81, 0.4);
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--white);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(5px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-3px);
    box-shadow: var(--glass-shadow);
}

/* ======================================
   Layout Components
   ====================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section-title {
    text-align: center;
    font-size: clamp(2.2rem, 4vw, 3rem);
    margin-bottom: var(--spacing-lg);
    color: var(--primary-blue);
    font-weight: 600;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--accent-green);
    margin: var(--spacing-sm) auto 0;
    border-radius: 2px;
}

/* ======================================
   Sections
   ====================================== */
.featured-products,
.quick-actions {
    padding: var(--spacing-xxl) 0;
}

/* ======================================
   Cards & Grids
   ====================================== */
.banking-grid,
.actions-grid,
.locations-grid,
.calculator-grid {
    display: grid;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.banking-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.actions-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.banking-card,
.action-card,
.stat-card {
    background: var(--white);
    padding: var(--spacing-xl) var(--spacing-lg);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.banking-card {
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.banking-card::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-green), #00ff88);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.banking-card:hover::before {
    transform: scaleX(1);
}

.banking-card:hover,
.action-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.banking-icon {
    font-size: 3.5rem;
    color: var(--accent-green);
    margin-bottom: var(--spacing-md);
    display: inline-block;
    transition: transform 0.3s ease;
}

.banking-card:hover .banking-icon {
    transform: scale(1.1);
}

.banking-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-blue);
}

.banking-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.rate-highlight {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-green);
    margin: var(--spacing-sm) 0;
}

.card-link {
    color: var(--accent-green);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.card-link:hover {
    color: var(--accent-green-hover);
    transform: translateX(5px);
}

/* ======================================
   Action Cards
   ====================================== */
.action-card {
    text-align: center;
    text-decoration: none;
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
}

.action-card i {
    font-size: 2.5rem;
    color: var(--accent-green);
    margin-bottom: var(--spacing-sm);
}

.action-card h4 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--primary-blue);
}

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

/* ======================================
   About Preview
   ====================================== */
.about-preview {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, #f0f4f8, #d9e2ec);
}

.about-content {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.about-content h2 {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
}

.about-content p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.stat-card {
    box-shadow: var(--shadow-md);
    text-align: center;
}

.stat-card .number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-green);
    margin-bottom: 0.5rem;
}

.stat-card .label {
    color: var(--primary-blue);
    font-weight: 600;
}

/* ======================================
   Footer
   ====================================== */
footer {
    background: var(--primary-blue);
    color: var(--white);
    padding: 3rem 0;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.9rem;
}

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

.social-links {
    margin-top: var(--spacing-lg);
}

.social-links a {
    color: var(--white);
    font-size: 1.8rem;
    margin: 0 var(--spacing-sm);
    transition: all 0.3s ease;
    display: inline-block;
}

.social-links a:hover {
    color: var(--accent-green);
    transform: translateY(-3px);
}

.footer-legal {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.85rem;
    opacity: 0.8;
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Ensure content is visible by default, animate only when JS is ready */
.fade-in {
    opacity: 1;
    transform: translateY(0);
}

/* Only apply animation if JavaScript has initialized */
body.js-loaded .fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

body.js-loaded .fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Loading State */
.loading {
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

/* ======================================
   Print Styles
   ====================================== */
@media print {
    nav, footer, .hero-video-container {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .hero-content {
        color: black;
        text-align: left;
    }
    
    a[href]::after {
        content: " (" attr(href) ")";
    }
}