/* ============================================
   CSS Reset & Base Styles
   ============================================ */

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

:root {
    /* Color Palette - Industrial & Professional */
    --color-primary: #1a1a1a;
    --color-secondary: #2d2d2d;
    --color-accent: #205587;
    --color-text: #2d2d2d;
    --color-text-light: #666666;
    --color-text-inverse: #ffffff;
    --color-border: #e0e0e0;
    --color-bg: #ffffff;
    --color-bg-light: #f8f8f8;
    --color-bg-dark: #1a1a1a;
    
    /* Typography - Modern, Expressive Fonts */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
    --font-serif: 'Playfair Display', serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Layout */
    --container-width: 100%;
    --container-max-width: 1400px;
    --container-padding: 2rem;
    
    /* Transitions */
    --transition-base: 0.2s ease;
}

/* Hide Default Scrollbar - Custom scrollbar is used instead */
/* Only show custom scrollbar styles on mobile where native scroll is used */
@media (max-width: 768px) {
    /* Custom Minimalistic Scrollbar for Mobile */
    ::-webkit-scrollbar-button {
        display: none !important;
        width: 0 !important;
        height: 0 !important;
    }
    
    ::-webkit-scrollbar {
        width: 6px;
    }
    
    ::-webkit-scrollbar-track {
        background: transparent;
    }
    
    ::-webkit-scrollbar-thumb {
        background: var(--color-primary);
        border-radius: 3px;
        border: none;
    }
    
    ::-webkit-scrollbar-thumb:hover {
        background: var(--color-accent);
    }
    
    ::-webkit-scrollbar-corner {
        background: transparent;
    }
    
    html {
        scrollbar-width: thin;
        scrollbar-color: var(--color-primary) transparent;
    }
}

/* Desktop - Completely hide default scrollbar */
@media (min-width: 769px) {
    ::-webkit-scrollbar {
        width: 0px;
        background: transparent;
    }
    
    html {
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
    
    body {
        -ms-overflow-style: none;
    }
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    overflow-x: hidden;
    width: 100%;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    line-height: 1.6;
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
}

/* ============================================
   Triangle Page Transition (hidden by default)
   ============================================ */

.triangle-transition {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    justify-content: flex-end;
    align-items: flex-end;
    pointer-events: none;
    opacity: 0; /* hidden by default */
}

.triangle-transition svg {
    width: 140vmax;
    height: 140vmax;
    transform-origin: 100% 100%;
    transform: scale(0);
    transition: transform 0.7s cubic-bezier(0.65, 0, 0.35, 1);
    fill: var(--color-accent);
    filter: drop-shadow(0 10px 40px rgba(0, 0, 0, 0.35));
}

.triangle-transition.is-animating {
    opacity: 1;
}

.triangle-transition.is-animating svg {
    transform: scale(2.4);
}

/* Exit prep: start covered so we can animate uncover */
.triangle-transition.is-prepping {
    opacity: 1;
}

.triangle-transition.is-prepping svg {
    transform: scale(2.4);
}

/* Exit animation: shrink and slide left */
.triangle-transition.is-exiting {
    opacity: 1;
}

.triangle-transition.is-exiting svg {
    transform: scale(0) translate(-25%, 0);
}

/* Disable text selection */
.no-select {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
}

.no-select a,
.no-select button,
.no-select input,
.no-select textarea {
    -webkit-user-select: auto;
    -moz-user-select: auto;
    -ms-user-select: auto;
    user-select: auto;
}

/* ============================================
   Typography - Enhanced with Modern Fonts
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 700;
    letter-spacing: -0.05em;
    line-height: 0.95;
}

h2 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.1;
}

h3 {
    font-size: clamp(1.5rem, 3.5vw, 2rem);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1.2;
}

h4 {
    font-size: clamp(1.125rem, 2.5vw, 1.25rem);
    font-weight: 500;
}

p {
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-primary);
    font-weight: 400;
    line-height: 1.7;
}

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

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

ul, ol {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

li {
    margin-bottom: var(--spacing-xs);
}

/* ============================================
   Container & Layout
   ============================================ */

.container {
    max-width: var(--container-max-width);
    width: 100%;
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ============================================
   Home Button (for division pages)
   ============================================ */

.home-button {
    position: fixed;
    bottom: var(--spacing-lg);
    left: var(--spacing-lg);
    z-index: 1200;
    padding: 0.7rem 1.35rem;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: linear-gradient(135deg, rgba(32, 85, 135, 0.95), rgba(0, 245, 255, 0.9));
    color: var(--color-text-inverse);
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(10px);
}

.home-button:hover {
    background: linear-gradient(135deg, rgba(0, 245, 255, 0.95), rgba(32, 85, 135, 0.9));
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 18px 36px rgba(0, 0, 0, 0.28);
}

/* ============================================
   Header & Navigation (Removed from home)
   ============================================ */

.main-header {
    display: none;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    background-color: var(--color-bg-dark);
    color: var(--color-text-inverse);
    padding: var(--spacing-xxl) 0;
    min-height: 90vh;
    display: flex;
    align-items: center;
    margin-bottom: 0;
    position: relative;
    overflow: hidden;
}

.brand-lockup {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.brand-lockup img {
    height: clamp(60px, 12vw, 96px);
    width: auto;
    filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.25));
}

.hero-logo {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.hero-logo img {
    width: min(720px, 86vw);
    height: auto;
    max-height: 260px;
    filter: drop-shadow(0 12px 32px rgba(0, 0, 0, 0.28));
    object-fit: contain;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
    width: 100%;
}

.hero h2 {
    color: var(--color-text-inverse);
    font-size: clamp(3rem, 8vw, 5.5rem);
    margin-bottom: 2rem;
    font-weight: 700;
    letter-spacing: -0.05em;
    line-height: 0.95;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 3vw, 1.5rem);
    color: rgba(255, 255, 255, 0.9);
    font-weight: 300;
    letter-spacing: 0.02em;
    line-height: 1.7;
    max-width: 750px;
    margin: 0 auto;
}

/* ============================================
   Page Header (for division pages)
   ============================================ */

.page-header {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--spacing-xl);
}

.academy-gateway .container {
    text-align: center;
}

.academy-gateway .breadcrumb {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.academy-gateway .page-subtitle {
    max-width: 860px;
    margin: 0.25rem auto 0;
}

.academy-location-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-top: 0.75rem;
    padding: 0.55rem 1.05rem;
    background: linear-gradient(135deg, rgba(32, 85, 135, 0.12), rgba(0, 245, 255, 0.12));
    color: var(--color-primary);
    border: 1px solid rgba(32, 85, 135, 0.18);
    border-radius: 999px;
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.08);
    font-weight: 700;
    letter-spacing: 0.01em;
}

.academy-location-chip::before {
    content: '';
    width: 10px;
    height: 10px;
    background: var(--color-accent);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(32, 85, 135, 0.2);
}

.breadcrumb {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.breadcrumb a {
    color: var(--color-text-light);
}

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

.breadcrumb span {
    margin: 0 var(--spacing-xs);
}

.page-header h1 {
    margin-bottom: var(--spacing-sm);
}

.page-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    color: var(--color-text-light);
    font-weight: 400;
}

/* ============================================
   Content Sections
   ============================================ */

.content-section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

/* ============================================
   Footer
   ============================================ */

.main-footer {
    background: radial-gradient(circle at 20% 20%, rgba(0, 245, 255, 0.12), transparent 35%),
        radial-gradient(circle at 80% 10%, rgba(255, 0, 255, 0.12), transparent 35%),
        linear-gradient(135deg, #0f172a, #0a1020 45%, #0c1c34);
    color: var(--color-text-inverse);
    margin-top: var(--spacing-xxl);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: var(--spacing-md);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(6px);
}

.footer-card h3,
.footer-card h4 {
    color: #e8ecff;
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.01em;
}

.footer-card p,
.footer-card a {
    color: rgba(232, 236, 255, 0.86);
}

.footer-card a:hover {
    color: #ffffff;
}

.footer-links {
    list-style: none;
    margin: 0;
    display: grid;
    gap: 0.35rem;
}

.footer-links li {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.footer-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 700;
    background: linear-gradient(135deg, rgba(0, 245, 255, 0.16), rgba(255, 0, 255, 0.18));
    color: #e8ecff;
}

.footer-bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(232, 236, 255, 0.7);
    font-size: 0.9rem;
    letter-spacing: 0.01em;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1400px) {
    .container {
        max-width: 100%;
        padding: 0 var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
        --spacing-xxl: 3rem;
        --spacing-xl: 2rem;
    }
    
    .home-button {
        bottom: var(--spacing-md);
        left: var(--spacing-md);
        padding: 0.55rem 1.05rem;
        font-size: 0.85rem;
        letter-spacing: 0.03em;
    }

    .hero {
        padding: var(--spacing-xl) 0;
    }

    .hero h2 {
        font-size: clamp(1.75rem, 5vw, 2.5rem);
    }

    /* Disable 3D background on mobile for performance */
    #bg-canvas {
        display: none;
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 0.75rem;
    }
}