/* ==========================================================================
   Design Tokens & CSS Variables
   ========================================================================== */
:root {
    /* Color Palette */
    --color-navy: #071827;
    --color-navy-light: #0d273d;
    --color-navy-dark: #030d17;
    --color-teal: #00D1C1;
    --color-teal-hover: #00b8aa;
    --color-teal-rgb: 0, 209, 193;
    --color-gold: #F6B84B;
    --color-gold-hover: #e5a73b;
    --color-white: #F7FAFC;
    --color-pure-white: #FFFFFF;
    --color-gray-steel: #6B7C8F;
    --color-gray-light: #E2E8F0;
    --color-gray-border: rgba(107, 124, 143, 0.2);
    
    /* Gradients */
    --gradient-cinematic: linear-gradient(135deg, #071827 0%, #073B4C 45%, #00D1C1 100%);
    --gradient-glow: radial-gradient(circle, rgba(0, 209, 193, 0.15) 0%, rgba(7, 24, 39, 0) 70%);
    --gradient-overlay: linear-gradient(to bottom, rgba(7, 24, 39, 0.4) 0%, rgba(7, 24, 39, 0.95) 100%);
    
    /* Fonts */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    /* Spacing & Layout */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    --container-width: 1200px;
    
    /* Shadows & Border Radius */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 10px 20px rgba(0,0,0,0.15);
    --shadow-lg: 0 20px 40px rgba(0,0,0,0.25);
    --shadow-teal: 0 0 20px rgba(0, 209, 193, 0.3);
    --shadow-gold: 0 0 20px rgba(246, 184, 75, 0.2);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 24px;
    
    /* Accessibility Variables (Dynamically Modified by JS) */
    --font-scale: 1;
    --letter-spacing: normal;
    --line-height-scale: 1.6;
    
    /* Transition */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-body);
    font-size: calc(1rem * var(--font-scale));
    letter-spacing: var(--letter-spacing);
    line-height: var(--line-height-scale);
    background-color: var(--color-white);
    color: var(--color-navy);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-navy);
    line-height: 1.25;
}

h1 { font-size: calc(3rem * var(--font-scale)); margin-bottom: var(--spacing-md); }
h2 { font-size: calc(2.25rem * var(--font-scale)); margin-bottom: var(--spacing-sm); }
h3 { font-size: calc(1.5rem * var(--font-scale)); margin-bottom: var(--spacing-sm); }

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

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

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

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-md);
}

/* Accessibility Focus Ring Styles */
:focus-visible {
    outline: 3px solid var(--color-teal);
    outline-offset: 4px;
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 20px;
    background: var(--color-teal);
    color: var(--color-navy);
    padding: var(--spacing-sm) var(--spacing-md);
    font-weight: bold;
    border-radius: var(--radius-sm);
    z-index: 10000;
    transition: top 0.2s;
}

.skip-link:focus {
    top: 20px;
}

/* ==========================================================================
   Header & Layout Containment
   ========================================================================== */
.main-header {
    background: rgba(7, 24, 39, 0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--color-gray-border);
    transition: var(--transition-fast);
}

.header-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--color-white);
}

.text-teal { color: var(--color-teal) !important; }
.text-gold { color: var(--color-gold) !important; }
.bg-navy { background-color: var(--color-navy) !important; color: var(--color-white) !important; }
.bg-white { background-color: var(--color-white) !important; color: var(--color-navy) !important; }

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--color-gray-steel);
    font-weight: 500;
    padding: var(--spacing-xs) 0;
    position: relative;
}

.nav-link:hover, .nav-link.active {
    color: var(--color-white);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-teal);
    transition: var(--transition-fast);
}

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-white);
    position: relative;
}

.hamburger::before, .hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--color-white);
    left: 0;
}

.hamburger::before { top: -6px; }
.hamburger::after { bottom: -6px; }

/* ==========================================================================
   Footer
   ========================================================================== */
.main-footer {
    background: var(--color-navy-dark);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    margin-top: auto;
    border-top: 1px solid var(--color-gray-border);
}

.footer-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.footer-brand .footer-logo {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
    display: inline-block;
}

.footer-mission {
    font-size: 0.95rem;
    color: var(--color-gray-steel);
    max-width: 350px;
}

.footer-nav-grid {
    grid-column: span 3;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.footer-nav-col h3 {
    color: var(--color-white);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.footer-nav-col ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-nav-col ul li a {
    color: var(--color-gray-steel);
    font-size: 0.95rem;
}

.footer-nav-col ul li a:hover {
    color: var(--color-white);
    padding-left: 5px;
}

.footer-bottom {
    max-width: var(--container-width);
    margin: var(--spacing-lg) auto 0;
    padding: var(--spacing-md) var(--spacing-md) 0;
    border-top: 1px solid var(--color-gray-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--color-gray-steel);
    font-size: 0.9rem;
}

/* ==========================================================================
   Buttons & User Interface Layouts
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.75rem;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: none;
    transition: var(--transition-fast);
    gap: var(--spacing-xs);
}

.btn-teal {
    background-color: var(--color-teal);
    color: var(--color-navy);
}

.btn-teal:hover {
    background-color: var(--color-teal-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-teal);
}

.btn-gold {
    background-color: var(--color-gold);
    color: var(--color-navy);
}

.btn-gold:hover {
    background-color: var(--color-gold-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold);
}

.btn-outline-white {
    background: transparent;
    border: 2px solid var(--color-white);
    color: var(--color-white);
}

.btn-outline-white:hover {
    background: var(--color-white);
    color: var(--color-navy);
    transform: translateY(-2px);
}

.btn-outline-teal {
    background: transparent;
    border: 2px solid var(--color-teal);
    color: var(--color-teal);
}

.btn-outline-teal:hover {
    background: var(--color-teal);
    color: var(--color-navy);
    transform: translateY(-2px);
}

/* Grid & Section Container System */
.section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.text-center { text-align: center; }

.section-tag {
    font-family: var(--font-heading);
    color: var(--color-teal);
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-xs);
    display: inline-block;
}

.section-title-large {
    font-size: calc(3rem * var(--font-scale));
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.section-desc {
    font-size: 1.15rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: var(--spacing-lg);
}

/* ==========================================================================
   Home Hero Section (Cinematic)
   ========================================================================== */
.hero-sec {
    background: var(--gradient-cinematic);
    position: relative;
    padding: var(--spacing-xl) 0;
    min-height: 85vh;
    display: flex;
    align-items: center;
    color: var(--color-white);
    overflow: hidden;
}

.hero-sec::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 80%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: var(--gradient-glow);
    pointer-events: none;
    z-index: 1;
}

.hero-sec .container {
    z-index: 2;
    position: relative;
}

.hero-sub {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-gold);
    margin-bottom: var(--spacing-xs);
    letter-spacing: 0.05em;
}

.hero-tagline {
    font-size: 1.25rem;
    color: var(--color-gray-light);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
}

.hero-ctas {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* ==========================================================================
   Timeline / Reality Component
   ========================================================================== */
.timeline-list {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-md) 0;
}

.timeline-list::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 20px;
    width: 2px;
    background: var(--color-gray-light);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-lg);
    padding-left: 50px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 6px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-teal);
    border: 3px solid var(--color-white);
    box-shadow: var(--shadow-sm);
    z-index: 2;
}

.timeline-item.gold-marker::before {
    background: var(--color-gold);
}

.timeline-year {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.4rem;
    color: var(--color-navy);
    margin-bottom: var(--spacing-xs);
}

.timeline-card {
    background: var(--color-pure-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-border);
}

/* ==========================================================================
   Split-Screen Shift Layout
   ========================================================================== */
.split-shift {
    display: flex;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.shift-left, .shift-right {
    flex: 1;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.shift-left {
    background: var(--color-navy-light);
    color: var(--color-white);
    border-right: 2px solid var(--color-teal);
}

.shift-right {
    background: var(--color-pure-white);
    color: var(--color-navy);
}

.shift-words {
    font-size: 1.8rem;
    font-family: var(--font-heading);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    color: var(--color-teal);
}

/* ==========================================================================
   Generic Subpages Layout
   ========================================================================== */
.page-intro {
    background: var(--color-navy);
    color: var(--color-white);
    padding: var(--spacing-lg) 0;
    border-bottom: 2px solid var(--color-teal);
}

.card {
    background: var(--color-pure-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-border);
    transition: var(--transition-fast);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.card-title {
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

/* Forms styling */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    font-size: 0.95rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-gray-steel);
    border-radius: var(--radius-sm);
    background-color: var(--color-white);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-control:focus {
    border-color: var(--color-teal);
    box-shadow: 0 0 0 3px rgba(0, 209, 193, 0.2);
    outline: none;
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

/* ==========================================================================
   Modals
   ========================================================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(7, 24, 39, 0.85);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    max-width: 500px;
    width: 100%;
    position: relative;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-teal);
}

.modal-content.content-large {
    max-width: 700px;
}

.modal-close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--color-gray-steel);
    line-height: 1;
}

.modal-close-btn:hover {
    color: var(--color-navy);
}

.success-icon-wrapper {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(0, 209, 193, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.success-check-svg {
    width: 40px;
    height: 40px;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 992px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    .grid-2 { grid-template-columns: 1fr; gap: var(--spacing-md); }
    .grid-3 { grid-template-columns: 1fr; }
    
    .footer-container {
        grid-template-columns: 1fr;
    }
    
    .footer-nav-grid {
        grid-column: span 1;
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-navy);
        padding: var(--spacing-md);
        border-bottom: 2px solid var(--color-teal);
    }
    
    .nav-menu.active {
        display: block;
    }
    
    .nav-list {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }
    
    .split-shift {
        flex-direction: column;
    }
    
    .shift-left {
        border-right: none;
        border-bottom: 2px solid var(--color-teal);
    }
    
    .footer-nav-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
}