/* ============================================
   NAOK Website Styles - V3.0 Codex Compliant
   Fulcrum Prime Engineering Standard v2.1
   ============================================ */

/* ============================================
   1.0 Design System & CSS Variables
   ============================================ */
:root {
    /* 1.1 Color Palette */
    --dark-base: #0A2540;
    --deep-blue: #001F3F;
    --gold: #D4AF37;
    --gold-light: #E6C558;
    --gold-super-light: #FFF8E7; /* For high-contrast on gold bg */
    --white: #FFFFFF;
    --text-secondary: #B0B8C1;
    --border: #1A3A52;
    --disabled: #4A5568;
    --success: #10B981;
    --warning: #F59E0B;
    
    /* 1.2 Spacing & Rhythm (8px Grid) */
    --spacing-xs: 8px;   /* 0.5rem */
    --spacing-sm: 16px;  /* 1rem */
    --spacing-md: 24px;  /* 1.5rem */
    --spacing-lg: 48px;  /* 3rem */
    --spacing-xl: 72px;  /* 4.5rem */
    
    /* 1.3 Typography */
    --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-sm: 0.875rem; /* 14px */
    --font-size-base: 1rem;     /* 16px */
    --font-size-lg: 1.125rem;  /* 18px */
    --font-size-xl: 1.5rem;    /* 24px */
    --font-size-2xl: 2rem;     /* 32px */
    --font-size-3xl: 3rem;     /* 48px */
    --font-size-4xl: 4rem;     /* 64px */
    --line-height: 1.6;
    
    /* 1.4 Effects & Transitions */
    --transition-fast: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-smooth: 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-card-hover: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    --gold-glow: 0 0 30px rgba(212, 175, 55, 0.3);
    --card-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

/* ============================================
   2.0 Global Resets & Base Styles
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-base);
    background-color: var(--dark-base);
    color: var(--white);
    line-height: var(--line-height);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   3.0 Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--white);
}
h1 { font-size: clamp(2.5rem, 8vw, var(--font-size-4xl)); }
h2 { font-size: clamp(2rem, 6vw, var(--font-size-3xl)); }
h3 { font-size: clamp(1.5rem, 5vw, var(--font-size-2xl)); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    max-width: 65ch; /* Optimal reading width */
}

a {
    color: var(--gold);
    text-decoration: none;
    transition: color var(--transition-fast);
}
a:hover {
    color: var(--gold-light);
    text-decoration: underline;
    text-decoration-color: var(--gold);
}

strong {
    color: var(--white);
    font-weight: 600;
}

/* ============================================
   4.0 Layout & Containers
   ============================================ */
.container {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

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

/* ============================================
   5.0 Reusable Components
   ============================================ */

/* 5.1 Buttons */
.btn-gold, .btn-outline {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-weight: 600;
    font-size: var(--font-size-base);
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
    border: 2px solid transparent; /* Prevents jumping on hover */
}

.btn-gold {
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
    color: var(--dark-base);
    border-color: var(--gold-dark);
}
.btn-gold:hover {
    background: transparent;
    color: var(--gold);
    border-color: var(--gold);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: var(--gold);
}
.btn-outline:hover {
    background: var(--gold);
    color: var(--dark-base);
    border-color: var(--gold);
}

.btn-gold-small {
    padding: 0.625rem 1.5rem;
    font-size: var(--font-size-sm);
}

/* 5.2 Cards */
.interactive-card {
    background: rgba(10, 37, 64, 0.6);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: var(--spacing-lg);
    will-change: transform; /* Performance optimization for animations */
    transition: all var(--transition-card-hover);
}
.interactive-card:hover {
    transform: translateY(-8px) scale(1.03);
    box-shadow: var(--card-shadow), var(--gold-glow);
    border-color: var(--gold);
}

/* ============================================
   6.0 Section-Specific Styling
   ============================================ */

/* 6.1 Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 37, 64, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: background-color var(--transition-fast), box-shadow var(--transition-fast);
}
.nav.scrolled {
    background: rgba(0, 31, 63, 0.95);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}
.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
}
.nav-logo {
    font-size: var(--font-size-lg);
    font-weight: 800;
    color: var(--gold);
}
.nav-links {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}
.nav-links a {
    color: var(--white);
    font-weight: 600;
    font-size: var(--font-size-sm);
    text-decoration: none;
}
.nav-links a:hover {
    color: var(--gold);
}
.nav-toggle { display: none; } /* Handled in responsive section */
.nav-toggle-bar {
    width: 24px;
    height: 2px;
    background: var(--gold);
    transition: all var(--transition-fast);
}

/* 6.2 Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    background: radial-gradient(ellipse at top, var(--deep-blue) 0%, var(--dark-base) 50%, #000000 100%);
}
.starfield {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    will-change: transform; /* Performance optimization for parallax */
}
.star {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--white);
    border-radius: 50%;
    animation: twinkle 3s ease-in-out infinite;
}
@keyframes twinkle {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.2); }
}
.hero-content {
    position: relative;
    z-index: 10;
    max-width: 900px;
    padding: 0 var(--spacing-md);
}
.hero-title {
    margin-bottom: var(--spacing-md);
}
.typing-text {
    display: inline; /* To ensure no block behavior */
}
.hero-subtitle {
    font-size: var(--font-size-xl);
    font-weight: 400;
    margin: 0 auto var(--spacing-lg);
}
.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    font-size: var(--font-size-2xl);
    color: var(--gold);
    animation: bounce 2s infinite;
    z-index: 10;
}
@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

/* 6.3 By The Numbers Section */
.numbers {
    background: linear-gradient(180deg, #000000 0%, var(--dark-base) 100%);
    padding-top: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
}
.numbers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}
.number-item {
    padding: var(--spacing-md);
}
.number-value {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--gold);
    margin-bottom: var(--spacing-xs);
}
.number-label {
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
    line-height: 1.4;
    min-height: 3.5em; /* Ensure consistent height even with wrapping */
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 6.4 Why Now Section */
.section-header { text-align: center; margin-bottom: var(--spacing-lg); }
.section-title { margin-bottom: var(--spacing-sm); }
.section-intro { font-size: var(--font-size-lg); margin: 0 auto var(--spacing-md); }
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}
.card { padding: var(--spacing-lg); text-align: center; }
.card-title { color: var(--gold); }
.card-text { text-align: left; margin-left: auto; margin-right: auto; }
.challenge-box {
    background: rgba(0, 31, 63, 0.8);
    border: 2px solid var(--gold);
    border-radius: 8px;
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--gold-glow);
}
.challenge-title { color: var(--gold); }
.challenge-text { color: var(--white); margin: 0 auto var(--spacing-md); }

/* 6.5 About Section */
.about { background: linear-gradient(180deg, var(--dark-base) 0%, var(--deep-blue) 100%); }
.about-content { max-width: 900px; margin: 0 auto; }
.about-text { text-align: center; }
.about-text h2 { max-width: 600px; margin-left: auto; margin-right: auto; }
.about-text p { font-size: var(--font-size-lg); text-align: left; margin: 0 auto var(--spacing-md); }
.about-text .receipts {
    font-size: var(--font-size-xl);
    color: var(--gold) !important;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    text-align: center !important;
    max-width: 100%;
    font-weight: 800;
}
.about-cta { display: flex; gap: var(--spacing-sm); flex-wrap: wrap; justify-content: center; }

/* 6.6 Trust (Portfolio) Section */
.trust { background: var(--dark-base); }
.mvp-featured { margin-bottom: var(--spacing-lg); }
.mvp-badge {
    text-align: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gold);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-sm);
}
.mvp-card {
    max-width: 900px;
    margin: 0 auto;
    background: linear-gradient(135deg, rgba(10, 37, 64, 0.9) 0%, rgba(0, 31, 63, 0.9) 100%);
    border: 2px solid var(--gold);
    box-shadow: var(--card-glow);
}
.trust-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    padding: 0.375rem 0.75rem;
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.live-badge { background: var(--success); color: var(--white); animation: pulse 2s ease-in-out infinite; }
.mvp-subtitle { font-size: var(--font-size-lg); color: var(--gold); text-align: center; margin-bottom: var(--spacing-md); font-style: italic; }
.mvp-modules { margin: var(--spacing-md) 0; display: flex; flex-direction: column; gap: var(--spacing-sm); }
.mvp-module { padding: var(--spacing-sm); background: rgba(212, 175, 55, 0.05); border-left: 3px solid var(--gold); text-align: left; }
.mvp-module strong { color: var(--gold); font-size: var(--font-size-base); }
.mvp-module span { color: var(--text-secondary); font-size: var(--font-size-sm); }
.mvp-stack { text-align: center; font-size: var(--font-size-sm); color: var(--text-secondary); margin-top: var(--spacing-md); padding-top: var(--spacing-md); border-top: 1px solid rgba(212, 175, 55, 0.2); }
.mvp-cta { text-align: center; margin-top: var(--spacing-md); }

/* 6.7 Research Section */
.research { background: linear-gradient(180deg, var(--deep-blue) 0%, var(--dark-base) 100%); }
.research-card { max-width: 800px; margin: 0 auto; padding: var(--spacing-lg); text-align: center; }
.research-title { color: var(--gold); margin-bottom: var(--spacing-sm); }
.research-text, .research-cta-text { margin-left: auto; margin-right: auto; }
.research-text { font-size: var(--font-size-lg); }

/* 6.8 Services Section */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--spacing-md); }
.service-card { padding: var(--spacing-lg); text-align: center; }
.service-title { color: var(--gold); margin-bottom: var(--spacing-md); }
.service-description { font-size: var(--font-size-base); min-height: 120px; }

/* 6.9 Footer */
.footer { background: #000000; padding: var(--spacing-lg) 0 var(--spacing-md); }
.footer-content { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: var(--spacing-md); }
.footer-brand { text-align: left; }
.footer-logo { font-size: var(--font-size-xl); font-weight: 800; color: var(--gold); }
.footer-tagline { font-size: var(--font-size-sm); color: var(--text-secondary); margin: 0; }
.footer-links { display: flex; gap: var(--spacing-md); }
.footer-links a { color: var(--text-secondary); font-weight: 600; }
.footer-badge {
    background: rgba(212, 175, 55, 0.05);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    text-align: center;
    padding: var(--spacing-md) 0;
    margin: var(--spacing-lg) 0;
    width: 100vw;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
}
.footer-badge p { font-size: var(--font-size-sm); color: var(--gold); margin: 0; max-width: 800px; padding: 0 var(--spacing-md); margin: 0 auto; }
.footer-legal { text-align: center; padding-top: var(--spacing-md); }
.footer-legal a { margin: 0 var(--spacing-xs); text-decoration: none; }
.footer-legal p { font-size: var(--font-size-sm); color: var(--disabled); margin: 0; }

/* ============================================
   7.0 Modals
   ============================================ */
.modal { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; z-index: 2000; align-items: center; justify-content: center; }
.modal.active { display: flex; }
.modal-overlay { position: absolute; inset: 0; background: rgba(0, 0, 0, 0.85); backdrop-filter: blur(4px); }
.modal-content {
    position: relative;
    max-width: 600px;
    width: 90%;
    background: var(--dark-base);
    border: 2px solid var(--gold);
    border-radius: 8px;
    padding: var(--spacing-lg);
    box-shadow: var(--card-glow);
    z-index: 2001;
    animation: modalSlideIn 0.3s ease;
}
@keyframes modalSlideIn { from { opacity: 0; transform: translateY(-50px); } to { opacity: 1; transform: translateY(0); } }
.modal-close { position: absolute; top: var(--spacing-sm); right: var(--spacing-sm); background: none; border: none; color: var(--white); font-size: 2rem; cursor: pointer; line-height: 1; transition: color var(--transition-fast); }
.modal-close:hover { color: var(--gold); }
.modal-title { margin-bottom: var(--spacing-md); }
.contact-form { display: flex; flex-direction: column; gap: var(--spacing-md); }
.honeypot { position: absolute; left: -9999px; }
.form-group { display: flex; flex-direction: column; gap: var(--spacing-xs); }
.form-group label { font-weight: 600; font-size: var(--font-size-sm); }
.form-group input, .form-group textarea { padding: 0.75rem; background: var(--deep-blue); border: 1px solid var(--border); border-radius: 4px; color: var(--white); font-family: var(--font-base); font-size: var(--font-size-base); transition: all var(--transition-fast); }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--gold); box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1); }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--disabled); }

/* ============================================
   8.0 Animations & Effects
   ============================================ */
.fade-in {
    opacity: 0;
    transform: translateY(20px) scale(0.98);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), 
                transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.fade-in.visible { opacity: 1; transform: translateY(0) scale(1); }

/* ============================================
   9.0 Responsive Design
   ============================================ */
@media (max-width: 768px) {
    :root {
        --font-size-3xl: 2.25rem;
        --font-size-4xl: 2.75rem;
        --spacing-lg: 32px;
        --spacing-xl: 48px;
    }
    .nav-toggle { display: flex; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; z-index: 1001; }
    .nav-links { display: none; position: fixed; inset: 0; background: var(--dark-base); flex-direction: column; justify-content: center; align-items: center; font-size: var(--font-size-2xl); gap: var(--spacing-lg); }
    .nav-links.active { display: flex; }
    .nav-toggle.active .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .nav-toggle.active .nav-toggle-bar:nth-child(2) { opacity: 0; }
    .nav-toggle.active .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
    .hero-cta { flex-direction: column; gap: var(--spacing-sm); }
    .cards-grid, .services-grid { grid-template-columns: 1fr; }
    .footer-content { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
    .btn-gold, .btn-outline { width: 100%; }
    .number-value { font-size: var(--font-size-2xl); }
}

/* ============================================
   10.0 Accessibility & Utilities
   ============================================ */
:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); border: 0; }
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}