/* ==========================================================================
   1. CORE DESIGN TOKENS & RESET
   ========================================================================== */
:root {
    /* Color Palette - Ultra-Clean Black & White with Gold Accent */
    --bg-navy: #000000;
    --bg-navy-deep: #000000;
    --bg-charcoal: #000000;
    --bg-charcoal-light: #080808;
    --bg-card: rgba(18, 18, 18, 0.95);
    --accent-amber: #D98A2B;
    --accent-amber-light: #F2A341;
    --accent-amber-glow: rgba(217, 138, 43, 0.4);
    --text-pure-white: #FFFFFF;
    --text-concrete: #FFFFFF;
    --text-concrete-muted: #F1F5F9;
    --text-steel: #CBD5E1;
    --text-steel-light: #E2E8F0;
    --border-steel: rgba(255, 255, 255, 0.15);
    --border-amber: rgba(217, 138, 43, 0.5);

    /* Typography */
    --font-display: 'Sora', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    --font-mono: 'Space Grotesk', monospace;

    /* Transitions & Easing */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out-circ: cubic-bezier(0.85, 0, 0.15, 1);
    --transition-smooth: all 0.6s var(--ease-out-expo);
    --transition-fast: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);

    /* Dimensions */
    --nav-height: 90px;
    --container-width: 1400px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-charcoal);
    color: var(--text-concrete);
    overflow-x: clip;
    width: 100%;
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--text-concrete);
    background-color: var(--bg-charcoal);
    position: relative;
    cursor: default;
    width: 100%;
    overflow-x: clip;
}

/* Subtle Blueprint Grid Background Overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(to right, rgba(92, 114, 144, 0.04) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(92, 114, 144, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 1;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--text-steel);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-amber);
}

/* Typography Utilities */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.1;
    color: var(--text-concrete);
    letter-spacing: -0.02em;
}

.text-gradient {
    background: linear-gradient(135deg, var(--text-concrete) 0%, var(--text-steel-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-amber {
    color: var(--accent-amber);
}

.mono-tag {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--accent-amber);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.mono-tag::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background-color: var(--accent-amber);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-amber);
}

.section-header {
    margin-bottom: 4rem;
    position: relative;
    z-index: 2;
    text-align: center;
}

.section-header .mono-tag {
    margin-left: auto;
    margin-right: auto;
    justify-content: center;
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 800;
    margin-top: 0.5rem;
    text-align: center;
}

.section-subtitle {
    font-size: clamp(1.1rem, 1.8vw, 1.35rem);
    color: var(--text-steel-light);
    max-width: 750px;
    margin: 1.5rem auto 0 auto;
    font-weight: 400;
    text-align: center;
}

/* Layout Utilities */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2.5rem;
    position: relative;
    z-index: 2;
}

section {
    padding: 75px 0;
    position: relative;
}

/* Responsive Overrides for Core Layout */
@media (max-width: 768px) {
    html {
        font-size: 15px;
    }

    .container {
        padding: 0 1.5rem;
    }

    section {
        padding: 60px 0;
    }

    .section-header {
        margin-bottom: 2.5rem;
    }

    .section-title {
        font-size: clamp(2.2rem, 8vw, 3.2rem);
    }

    .section-subtitle {
        font-size: 1.05rem;
        margin-top: 1rem;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .container {
        padding: 0 1.25rem;
    }

    section {
        padding: 50px 0;
    }
}