/* ============================================
   ORIGIN INTELLIGENCE™ — DESIGN SYSTEM
   ============================================ */

:root {
    /* Primary Palette */
    --deep-origin: #1B3A4B;
    --transformation-gold: #C4943A;
    --precision-slate: #3D4F5C;
    --abiding-cream: #F7F4EF;
    --witness-white: #FAFAF8;
    --near-black: #1A1A1E;

    /* Secondary Palette */
    --emergence-amber: #B8841E;
    --quiet-grey: #8B9AA5;
    --border-line: #E2DDD7;

    /* Typography */
    --font-heading: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

    /* Spacing */
    --container-max: 1280px;
    --container-narrow: 880px;
    --section-pad: 120px;
}

/* ============================================
   RESET & BASE
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--near-black);
    background: var(--witness-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

em {
    font-style: italic;
}

/* ============================================
   TYPOGRAPHY SCALE
   ============================================ */

h1, h2, h3 {
    font-family: var(--font-heading);
    font-weight: 400;
    color: var(--near-black);
}

h1 {
    font-size: clamp(2.25rem, 5vw, 3.5rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.875rem, 4vw, 2.5rem);
    line-height: 1.2;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.375rem;
    line-height: 1.3;
}

p {
    font-size: 1rem;
    line-height: 1.7;
}

/* ============================================
   CONTAINERS
   ============================================ */

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 32px;
}

.container-narrow {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 0 32px;
}

/* ============================================
   NAVIGATION
   ============================================ */

#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 24px 0;
    background: transparent;
    transition: background 0.4s ease, padding 0.4s ease, box-shadow 0.4s ease;
}

#navbar.scrolled {
    background: rgba(250, 250, 248, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 16px 0;
    box-shadow: 0 1px 0 var(--border-line);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--deep-origin);
    letter-spacing: -0.01em;
}

.nav-center {
    display: flex;
    gap: 40px;
}

.nav-center a {
    font-size: 0.9375rem;
    color: var(--precision-slate);
    transition: color 0.2s ease;
    position: relative;
}

.nav-center a:hover {
    color: var(--deep-origin);
}

.nav-center a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--transformation-gold);
    transition: width 0.3s ease;
}

.nav-center a:hover::after {
    width: 100%;
}

.nav-cta {
    background: var(--transformation-gold);
    color: white;
    padding: 12px 24px;
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: 2px;
    transition: background 0.2s ease, transform 0.2s ease;
}

.nav-cta:hover {
    background: var(--emergence-amber);
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 1.5px;
    background: var(--deep-origin);
    transition: all 0.3s ease;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn-primary {
    display: inline-block;
    background: var(--transformation-gold);
    color: white;
    padding: 16px 32px;
    border-radius: 2px;
    font-size: 0.9375rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary:hover {
    background: var(--emergence-amber);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(196, 148, 58, 0.25);
}

/* ============================================
   HERO
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    background: var(--witness-white);
    position: relative;
}

.hero-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 32px;
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 80px;
    align-items: center;
    width: 100%;
}

.hero-content {
    max-width: 720px;
}

.hero-headline {
    font-size: clamp(2.25rem, 5.5vw, 3.5rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--near-black);
    margin-bottom: 32px;
    animation: fadeUp 1s ease-out;
}

.hero-headline em {
    color: var(--deep-origin);
    font-style: italic;
}

.hero-sub {
    font-size: 1.25rem;
    line-height: 1.6;
    color: var(--precision-slate);
    margin-bottom: 48px;
    max-width: 560px;
    animation: fadeUp 1s ease-out 0.15s both;
}

.hero-cta-group {
    animation: fadeUp 1s ease-out 0.3s both;
}

.hero-cta-note {
    margin-top: 16px;
    font-size: 0.875rem;
    color: var(--quiet-grey);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeIn 1.5s ease-out 0.4s both;
}

.origin-mark {
    width: 100%;
    max-width: 400px;
    height: auto;
    animation: rotate 60s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ============================================
   RECOGNITION BLOCK
   ============================================ */

.recognition {
    background: var(--deep-origin);
    padding: var(--section-pad) 0;
    text-align: center;
    position: relative;
}

.recognition::before {
    content: '';
    position: absolute;
    top: 60px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 1px;
    background: var(--transformation-gold);
}

.recognition-quote {
    font-family: var(--font-heading);
    font-style: italic;
    font-size: clamp(1.5rem, 3vw, 2rem);
    line-height: 1.4;
    color: var(--abiding-cream);
    max-width: 800px;
    margin: 0 auto 32px;
}

.recognition-attr {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--transformation-gold);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* ============================================
   SECTION HEADER
   ============================================ */

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 80px;
}

.section-header h2 {
    margin-bottom: 24px;
}

.section-header h2 em {
    color: var(--deep-origin);
    font-style: italic;
}

.section-sub {
    font-size: 1.125rem;
    color: var(--precision-slate);
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   PILLARS
   ============================================ */

.pillars {
    padding: var(--section-pad) 0;
    background: var(--witness-white);
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0;
    border-top: 1px solid var(--border-line);
    border-bottom: 1px solid var(--border-line);
}

.pillar {
    padding: 56px 32px;
    border-right: 1px solid var(--border-line);
    transition: background 0.3s ease;
}

.pillar:last-child {
    border-right: none;
}

.pillar:hover {
    background: var(--abiding-cream);
}

.pillar-num {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--transformation-gold);
    letter-spacing: 0.08em;
    display: block;
    margin-bottom: 24px;
}

.pillar h3 {
    font-size: 1.375rem;
    margin-bottom: 20px;
    color: var(--near-black);
}

.pillar-line {
    width: 32px;
    height: 1px;
    background: var(--transformation-gold);
    margin-bottom: 20px;
}

.pillar p {
    font-size: 0.9375rem;
    color: var(--precision-slate);
    line-height: 1.6;
}

/* ============================================
   AUDIENCE
   ============================================ */

.audience {
    padding: var(--section-pad) 0;
    background: var(--abiding-cream);
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 80px;
}

.audience-card {
    background: var(--witness-white);
    padding: 48px 40px;
    border: 1px solid var(--border-line);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.audience-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 24px 48px -16px rgba(27, 58, 75, 0.12);
}

.audience-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--transformation-gold);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    display: block;
    margin-bottom: 28px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-line);
}

.audience-card p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--near-black);
}

.audience-cta {
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
}

.audience-cta-text {
    font-family: var(--font-heading);
    font-size: 1.375rem;
    line-height: 1.5;
    color: var(--deep-origin);
    margin-bottom: 32px;
    font-style: italic;
}

/* ============================================
   RESEARCH ANCHOR
   ============================================ */

.research {
    padding: 80px 0;
    background: var(--deep-origin);
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 56px;
    text-align: center;
}

.research-stat {
    padding: 0 16px;
    position: relative;
}

.research-stat:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -28px;
    top: 10%;
    height: 80%;
    width: 1px;
    background: rgba(196, 148, 58, 0.25);
}

.research-label {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    color: var(--transformation-gold);
    display: block;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.research-value {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--abiding-cream);
    letter-spacing: 0.04em;
    line-height: 1.6;
    text-transform: uppercase;
    opacity: 0.85;
}

/* ============================================
   FOOTER
   ============================================ */

footer {
    background: var(--near-black);
    color: var(--abiding-cream);
    padding: 80px 0 32px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(247, 244, 239, 0.1);
    align-items: end;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.footer-tagline {
    font-size: 0.9375rem;
    color: var(--quiet-grey);
}

.footer-nav {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
}

.footer-nav a {
    font-size: 0.875rem;
    color: var(--abiding-cream);
    opacity: 0.7;
    transition: opacity 0.2s ease, color 0.2s ease;
}

.footer-nav a:hover {
    opacity: 1;
    color: var(--transformation-gold);
}

.footer-bottom {
    padding-top: 32px;
    font-size: 0.8125rem;
    color: var(--quiet-grey);
    line-height: 1.6;
}

/* ============================================
   SCROLL REVEAL
   ============================================ */

.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
    .pillars-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pillar {
        border-right: 1px solid var(--border-line);
        border-bottom: 1px solid var(--border-line);
    }

    .pillar:nth-child(2n) {
        border-right: none;
    }

    .pillar:nth-last-child(-n+1) {
        border-bottom: none;
    }

    .audience-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .hero-visual {
        order: -1;
        max-width: 280px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    :root {
        --section-pad: 80px;
    }

    .nav-center,
    .nav-cta {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-container {
        padding: 0 24px;
    }

    .container,
    .container-narrow,
    .hero-container {
        padding: 0 24px;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .pillars-grid {
        grid-template-columns: 1fr;
    }

    .pillar {
        border-right: none;
        padding: 40px 24px;
    }

    .pillar:last-child {
        border-bottom: none;
    }

    .research-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .research-stat:not(:last-child)::after {
        display: none;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-nav {
        gap: 20px;
    }

    .audience-card {
        padding: 32px 24px;
    }
}

/* Mobile menu open state */
.nav-menu-open {
    overflow: hidden;
}

.nav-menu-open .nav-center,
.nav-menu-open .nav-cta {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--witness-white);
    padding: 32px 24px;
    gap: 24px;
    border-bottom: 1px solid var(--border-line);
    z-index: 99;
}

.nav-menu-open .nav-cta {
    top: auto;
    align-items: center;
}