/* ============================================================
   PERRY NELSON — Personal Website
   Light editorial: Fraunces + Instrument Sans, warm paper,
   hairline rules, bronze accent
   ============================================================ */

/* --- Design Tokens --- */
:root {
  --paper: #faf8f3;
  --paper-raised: #ffffff;
  --ink: #201d18;
  --ink-2: #555047;
  --ink-3: #75705f;
  --line: #e4ded1;
  --line-strong: #c9c1af;
  --accent: #8c5a17;

  --dark: #181613;
  --dark-text: #f2ede4;
  --dark-text-2: rgba(242, 237, 228, 0.66);
  --dark-line: rgba(242, 237, 228, 0.18);

  --font-display: 'Fraunces', 'Georgia', serif;
  --font-body: 'Instrument Sans', 'Helvetica Neue', Arial, sans-serif;

  --section-padding: clamp(80px, 10vw, 140px);
  --container-max: 1160px;
  --container-padding: clamp(20px, 4.5vw, 48px);
}

/* --- Reset & Base --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body { font-family: var(--font-body); background: var(--paper); color: var(--ink-2); font-size: 1.02rem; line-height: 1.7; overflow-x: clip; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button { border: none; background: none; cursor: pointer; font-family: inherit; color: inherit; }
ul, ol { list-style: none; }
::selection { background: #ead9bc; color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.skip-link { position: absolute; left: -9999px; top: 0; z-index: 200; background: var(--ink); color: var(--paper); padding: 12px 20px; font-size: 0.9rem; font-weight: 550; border-radius: 0 0 4px 0; }
.skip-link:focus { left: 0; }

/* --- Typography --- */
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 480; color: var(--ink); line-height: 1.12; letter-spacing: -0.01em; }
h1 { font-size: clamp(3.6rem, 9vw, 6.8rem); font-weight: 420; line-height: 0.98; letter-spacing: -0.02em; }
h1 em, h2 em { font-style: italic; font-weight: 380; }
h2 { font-size: clamp(2.1rem, 4.2vw, 3.2rem); }
h3 { font-size: 1.35rem; font-weight: 520; }
h4 { font-size: 1.1rem; font-weight: 550; }
p { max-width: 68ch; }

.section-tag {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 22px;
}
.section-tag::before { content: ""; width: 30px; height: 1px; background: var(--accent); }

.section-header { margin-bottom: clamp(48px, 6vw, 72px); }
.section-header p { margin-top: 18px; font-size: 1.08rem; color: var(--ink-2); max-width: 52ch; }

.container { max-width: var(--container-max); margin: 0 auto; padding: 0 var(--container-padding); }
section { padding: var(--section-padding) 0; }
.about, .journey, .research, .ventures, .media, .life, .contact { border-top: 1px solid var(--line); }

.inline-link { color: var(--ink); text-decoration: underline; text-decoration-color: var(--line-strong); text-underline-offset: 3px; transition: color 0.2s, text-decoration-color 0.2s; }
.inline-link:hover { color: var(--accent); text-decoration-color: var(--accent); }

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-body); font-size: 0.92rem; font-weight: 550; letter-spacing: 0.01em;
  padding: 14px 26px; border-radius: 3px; transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--accent); color: #fff; }
.btn-ghost { border: 1px solid var(--line-strong); color: var(--ink); }
.btn-ghost:hover { border-color: var(--ink); }
.btn-lg { padding: 16px 30px; }
.btn-nav { padding: 10px 20px; font-size: 0.85rem; border: 1px solid var(--line-strong); color: var(--ink); }
.btn-nav:hover { border-color: var(--ink); }

/* --- Navigation --- */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: transparent; transition: background 0.25s, border-color 0.25s; border-bottom: 1px solid transparent; }
.nav.scrolled { background: rgba(250, 248, 243, 0.92); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom-color: var(--line); }
.nav-inner { max-width: var(--container-max); margin: 0 auto; padding: 0 var(--container-padding); height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.nav-logo { font-family: var(--font-display); font-size: 1.22rem; font-weight: 550; color: var(--ink); }
.nav-links { display: flex; gap: 30px; }
.nav-links a { font-size: 0.9rem; font-weight: 500; color: var(--ink-2); transition: color 0.2s; }
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-cta { display: flex; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav-toggle span { width: 22px; height: 1.5px; background: var(--ink); transition: transform 0.25s, opacity 0.25s; }
.nav-toggle.active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-menu { display: none; position: fixed; inset: 74px 0 0; background: var(--paper); padding: 40px var(--container-padding); flex-direction: column; gap: 4px; border-top: 1px solid var(--line); }
.mobile-menu.open { display: flex; }
.mobile-menu > a { font-family: var(--font-display); font-size: 1.7rem; color: var(--ink); padding: 12px 0; border-bottom: 1px solid var(--line); }
.mobile-menu-actions { margin-top: 28px; }

/* --- Hero --- */
.hero { padding: clamp(150px, 18vh, 210px) 0 var(--section-padding); }
.hero-layout { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(40px, 6vw, 90px); align-items: center; }
.hero-kicker { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); margin-bottom: 26px; }
.hero-text h1 { margin-bottom: 30px; }
.hero-description { font-size: 1.14rem; line-height: 1.75; color: var(--ink-2); max-width: 46ch; }
.hero-actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-top: 38px; }
.hero-photo img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; border-radius: 4px; }
.hero-photo { position: relative; }
.hero-photo::after { content: ""; position: absolute; inset: 14px -14px -14px 14px; border: 1px solid var(--line-strong); border-radius: 4px; z-index: -1; }

/* --- About --- */
.about-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(40px, 6vw, 90px); align-items: start; }
.about-image { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; border-radius: 4px; }
.about-text-col h2 { margin-bottom: 28px; }
.about-lead { font-size: 1.22rem; line-height: 1.65; color: var(--ink); margin-bottom: 22px; }
.about-text-col p + p { margin-top: 18px; }

.philosophy-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(28px, 4vw, 48px); margin-top: clamp(64px, 9vw, 110px); }
.philosophy-card { border-top: 1px solid var(--ink); padding-top: 22px; }
.philosophy-card h3 { font-size: 1.1rem; font-weight: 550; margin-bottom: 10px; }
.philosophy-card p { font-size: 0.95rem; }

/* --- Journey / CV --- */
.cv { border-bottom: 1px solid var(--line); }
.cv-row { display: grid; grid-template-columns: 150px 48px 1fr; gap: clamp(20px, 3vw, 36px); padding: 34px 0; border-top: 1px solid var(--line); align-items: start; }
.cv-year { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); padding-top: 6px; }
.cv-row--now .cv-year { color: var(--accent); }
.cv-logo { width: 46px; height: 46px; border: 1px solid var(--line); border-radius: 4px; background: var(--paper-raised); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.cv-logo img { max-width: 28px; max-height: 28px; object-fit: contain; }
.cv-logo-text { font-size: 0.6rem; font-weight: 700; letter-spacing: 0.04em; color: var(--ink-3); }
.cv-body h3 { font-size: 1.28rem; }
.cv-role { display: block; font-size: 0.86rem; color: var(--ink-3); margin: 4px 0 12px; }
.cv-body p { font-size: 0.98rem; max-width: 60ch; }

/* --- Research --- */
.research-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 22px; align-items: stretch; }
.research-card { background: var(--paper-raised); border: 1px solid var(--line); border-radius: 6px; padding: clamp(28px, 4vw, 46px); display: flex; flex-direction: column; }
.research-card-badge { font-size: 0.68rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin-bottom: 18px; }
.research-card h3 { font-size: clamp(1.4rem, 2.2vw, 1.75rem); margin-bottom: 16px; }
.research-card > p { font-size: 0.98rem; }

.research-stats { display: flex; flex-wrap: wrap; gap: clamp(28px, 4vw, 56px); margin: 30px 0; padding: 24px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.research-stat { display: flex; flex-direction: column; gap: 4px; }
.research-stat-value { font-family: var(--font-display); font-size: 1.9rem; font-weight: 480; color: var(--ink); line-height: 1; }
.research-stat-label { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); }

.research-links { display: flex; flex-wrap: wrap; gap: 10px 28px; margin-top: auto; padding-top: 8px; }
.research-links .btn { padding: 0; border: none; border-radius: 0; font-size: 0.92rem; font-weight: 550; color: var(--ink); text-decoration: underline; text-decoration-color: var(--line-strong); text-underline-offset: 4px; }
.research-links .btn:hover { color: var(--accent); text-decoration-color: var(--accent); }

/* --- Ventures --- */
.ventures-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.venture-card { background: var(--paper-raised); border: 1px solid var(--line); border-radius: 6px; display: block; transition: border-color 0.2s; }
.venture-card:hover { border-color: var(--line-strong); }
.venture-card-content { padding: clamp(26px, 3.5vw, 38px); display: flex; flex-direction: column; height: 100%; }
.venture-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.venture-logo { width: 46px; height: 46px; border: 1px solid var(--line); border-radius: 6px; background: var(--paper); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.venture-logo img { max-width: 30px; max-height: 30px; object-fit: contain; }
.venture-logo-wide { max-width: 36px; }
.venture-badge { font-size: 0.64rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); border: 1px solid var(--line); border-radius: 999px; padding: 5px 12px; white-space: nowrap; }
.venture-card h3 { font-size: 1.4rem; margin-bottom: 12px; transition: color 0.2s; }
.venture-card:hover h3 { color: var(--accent); }
.venture-card p { font-size: 0.95rem; }
.venture-metrics { display: flex; align-items: center; gap: 10px; font-size: 0.8rem; font-weight: 550; letter-spacing: 0.02em; color: var(--ink-3); margin-top: 20px; }
.venture-link-text { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 0.88rem; font-weight: 550; color: var(--ink); }
.venture-card:hover .venture-link-text { color: var(--accent); }

/* --- Philanthropy --- */
.philanthropy { position: relative; overflow: hidden; border-top: none; }
.philanthropy-bg { position: absolute; inset: 0; }
.philanthropy-bg-img { width: 100%; height: 100%; object-fit: cover; }
.philanthropy-overlay { position: absolute; inset: 0; background: rgba(20, 17, 13, 0.86); }
.philanthropy .container { position: relative; z-index: 1; }
.philanthropy-content { max-width: 730px; }
.philanthropy .section-tag { color: #d8b06a; }
.philanthropy .section-tag::before { background: #d8b06a; }
.philanthropy h2 { color: var(--dark-text); margin-bottom: 30px; }
.philanthropy-quote { margin-bottom: 30px; }
.philanthropy-quote blockquote { font-family: var(--font-display); font-style: italic; font-weight: 400; font-size: clamp(1.3rem, 2.4vw, 1.7rem); line-height: 1.4; color: var(--dark-text); }
.philanthropy-attribution { display: block; margin-top: 12px; font-size: 0.86rem; color: var(--dark-text-2); }
.philanthropy-content > p { color: var(--dark-text-2); margin-bottom: 16px; }
.philanthropy-details { display: flex; flex-wrap: wrap; gap: 12px 36px; margin-top: 28px; }
.philanthropy-detail span { font-size: 0.74rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--dark-text-2); }
.philanthropy-volunteering { margin-top: 44px; }
.philanthropy-volunteering h3 { font-size: 1.05rem; color: var(--dark-text); margin-bottom: 16px; }
.volunteer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.volunteer-card { border: 1px solid var(--dark-line); border-radius: 4px; padding: 18px 22px; }
.volunteer-card strong { color: var(--dark-text); font-weight: 600; font-size: 0.95rem; }
.volunteer-card p { color: var(--dark-text-2); font-size: 0.85rem; margin-top: 4px; }

/* --- Media --- */
.media-featured { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(32px, 5vw, 64px); align-items: center; margin-bottom: clamp(56px, 7vw, 88px); }
.media-video-wrapper { position: relative; aspect-ratio: 16 / 9; border-radius: 6px; overflow: hidden; border: 1px solid var(--line); background: var(--dark); }
.media-video-wrapper iframe { position: absolute; inset: 0; width: 100%; height: 100%; }
.media-featured-info h3 { font-size: clamp(1.4rem, 2.4vw, 1.8rem); margin-bottom: 8px; }
.media-featured-info p { font-size: 0.98rem; }

.media-card-type { font-size: 0.68rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin-bottom: 14px; }
.media-venue { font-size: 0.85rem; color: var(--ink-3); margin-bottom: 12px; }
.media-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(28px, 4vw, 44px); }
.media-card { border-top: 1px solid var(--line); padding-top: 24px; display: block; }
.media-card h3 { font-size: 1.14rem; line-height: 1.3; margin-bottom: 6px; transition: color 0.2s; }
.media-card-link:hover h3 { color: var(--accent); }
.media-card p:last-child { font-size: 0.92rem; }

/* --- Life --- */
.life-gallery { display: grid; grid-template-columns: 1.25fr 1fr; gap: clamp(20px, 3vw, 32px); }
.life-card { margin: 0; }
.life-card--large { grid-row: span 3; display: flex; flex-direction: column; }
.life-card img { width: 100%; object-fit: cover; border-radius: 4px; aspect-ratio: 4 / 3; }
.life-card--large img { aspect-ratio: auto; flex: 1; min-height: 0; height: 100%; }
.life-card figcaption { font-size: 0.85rem; color: var(--ink-3); padding-top: 10px; }

/* --- Contact --- */
.contact-content h2 { margin-bottom: 24px; }
.contact-description { font-size: 1.12rem; max-width: 46ch; }
.contact-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: clamp(40px, 5vw, 60px); }
.contact-link { display: flex; align-items: center; gap: 16px; border: 1px solid var(--line); border-radius: 6px; background: var(--paper-raised); padding: 20px 24px; transition: border-color 0.2s; }
.contact-link:hover { border-color: var(--line-strong); }
.contact-link-icon { width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 6px; display: flex; align-items: center; justify-content: center; color: var(--ink); flex-shrink: 0; }
.contact-link-icon svg { width: 20px; height: 20px; }
.contact-link-icon img { max-width: 24px; max-height: 24px; }
.contact-link-label { display: block; font-weight: 600; font-size: 0.95rem; color: var(--ink); }
.contact-link-handle { display: block; font-size: 0.84rem; color: var(--ink-3); }
.contact-link:hover .contact-link-label { color: var(--accent); }

/* --- Footer --- */
.footer { background: var(--dark); color: var(--dark-text-2); padding: clamp(64px, 8vw, 96px) 0 36px; }
.footer-inner { display: flex; justify-content: space-between; gap: 60px; margin-bottom: 56px; }
.footer-brand { max-width: 320px; }
.footer-logo { font-family: var(--font-display); font-size: 1.5rem; font-weight: 500; color: var(--dark-text); display: inline-block; margin-bottom: 14px; }
.footer-brand p { font-size: 0.92rem; }
.footer-links { display: flex; gap: clamp(40px, 6vw, 90px); }
.footer-col h3 { font-family: var(--font-body); font-size: 0.7rem; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--dark-text-2); margin-bottom: 18px; }
.footer-col a { display: block; font-size: 0.92rem; color: var(--dark-text-2); padding: 5px 0; transition: color 0.2s; }
.footer-col a:hover { color: var(--dark-text); }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-top: 28px; border-top: 1px solid var(--dark-line); font-size: 0.82rem; }

/* ============================================================
   RESPONSIVE — TABLET (≤1024px)
   ============================================================ */
@media (max-width: 1024px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .nav:has(.mobile-menu.open) { background: rgba(250, 248, 243, 0.98); border-bottom-color: var(--line); }

  .hero-layout { grid-template-columns: 1fr; gap: 48px; }
  .hero-photo { max-width: 420px; }

  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-image-col { max-width: 440px; }

  .research-grid { grid-template-columns: 1fr; }
  .media-featured { grid-template-columns: 1fr; }
  .media-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { flex-direction: column; gap: 40px; }
}

/* ============================================================
   RESPONSIVE — MOBILE (≤720px)
   ============================================================ */
@media (max-width: 720px) {
  .hero { padding-top: 130px; }
  .hero-actions .btn { width: 100%; }
  .hero-photo::after { display: none; }

  .philosophy-cards { grid-template-columns: 1fr; gap: 28px; }

  .cv-row { grid-template-columns: 46px 1fr; row-gap: 12px; }
  .cv-year { grid-column: 1 / -1; padding-top: 0; }

  .ventures-grid { grid-template-columns: 1fr; }
  .media-grid { grid-template-columns: 1fr; }
  .volunteer-grid { grid-template-columns: 1fr; }
  .life-gallery { grid-template-columns: 1fr; }
  .life-card--large { grid-row: auto; }
  .life-card--large img { aspect-ratio: 4 / 3; height: auto; }
  .contact-links { grid-template-columns: 1fr; }

  .footer-links { flex-wrap: wrap; gap: 32px 48px; }
  .footer-bottom { flex-direction: column; gap: 6px; }
}

/* --- Reduced motion --- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}