/* ═══════════════════════════════════════════════
   STOIC MASTERCLASS — Design System
   stoicmasterclass.com · Est. 2023
   ═══════════════════════════════════════════════ */

/* ── RESET + CUSTOM PROPERTIES ──────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:         #0B0A09;
  --surface:    #141210;
  --surface-2:  #1C1916;
  --border:     #2A2622;
  --border-2:   #3A342E;
  --text-1:     #F0EBE3;
  --text-2:     #9E9389;
  --text-3:     #5C5450;
  --gold:       #C4963A;
  --gold-light: #D4AA4E;
  --gold-dim:   rgba(196,150,58,.12);
  --serif:      'Cormorant Garamond', Georgia, serif;
  --sans:       'Inter', system-ui, -apple-system, sans-serif;
  --max:        1160px;
  --pad:        clamp(20px, 5vw, 60px);
  --section:    clamp(80px, 10vw, 130px);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg); color: var(--text-1);
  font-family: var(--sans); font-size: 16px;
  line-height: 1.7; font-weight: 300;
  -webkit-font-smoothing: antialiased;
}

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

/* ── LAYOUT ─────────────────────────────────── */
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }
section { padding: var(--section) 0; }

/* ── NAVIGATION ─────────────────────────────── */
#nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px var(--pad);
  transition: background .3s, border-bottom .3s;
}
#nav.scrolled {
  background: rgba(11,10,9,.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-logo img { height: 38px; opacity: .85; }
.nav-links { display: flex; gap: 36px; list-style: none; }
.nav-links a {
  color: var(--text-2); text-decoration: none;
  font-size: 12px; font-weight: 400;
  letter-spacing: .1em; text-transform: uppercase;
  transition: color .2s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--text-1); }
.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  padding: 4px; flex-direction: column; gap: 5px;
}
.nav-toggle span {
  display: block; width: 22px; height: 1.5px;
  background: var(--text-1); transition: all .3s;
}

/* ── FOOTER ─────────────────────────────────── */
footer { border-top: 1px solid var(--border); padding: 56px 0; }
.footer-inner {
  display: flex; align-items: center;
  justify-content: space-between; flex-wrap: wrap; gap: 28px;
}
.footer-logo img { height: 30px; opacity: .3; }
.footer-center { text-align: center; }
.footer-q { font-family: var(--serif); font-size: 16px; font-style: italic; font-weight: 300; color: var(--text-3); }
.footer-d { font-size: 11px; font-weight: 300; letter-spacing: .08em; color: var(--text-3); margin-top: 5px; }
.footer-r { font-size: 11px; font-weight: 300; color: var(--text-3); text-align: right; }
.footer-r span { display: block; font-size: 10px; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 3px; }

/* ── SHARED TYPOGRAPHY ──────────────────────── */
.lbl {
  font-size: 10px; font-weight: 500;
  letter-spacing: .25em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 16px; display: block;
}
.h2 {
  font-family: var(--serif);
  font-size: clamp(30px, 4.5vw, 52px);
  font-weight: 300; line-height: 1.12;
  color: var(--text-1); margin-bottom: 20px;
}
.h2 em { font-style: italic; color: var(--gold-light); }
.h3 {
  font-family: var(--serif);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 400; line-height: 1.2;
  color: var(--text-1); margin-bottom: 16px;
}
.body-text {
  font-size: 16px; font-weight: 300;
  color: var(--text-2); line-height: 1.85; max-width: 620px;
}
.divider { width: 40px; height: 1px; background: var(--gold); margin: 32px 0; }

/* ── BUTTONS + BADGES ───────────────────────── */
.btn-p {
  display: inline-block; padding: 14px 32px;
  background: var(--gold); color: var(--bg);
  font-size: 12px; font-weight: 500;
  letter-spacing: .08em; text-transform: uppercase;
  text-decoration: none; transition: background .2s;
}
.btn-p:hover { background: var(--gold-light); }
.btn-g {
  display: inline-block; padding: 13px 32px;
  border: 1px solid var(--border-2); color: var(--text-2);
  font-size: 12px; font-weight: 400;
  letter-spacing: .08em; text-transform: uppercase;
  text-decoration: none; transition: border-color .2s, color .2s;
}
.btn-g:hover { border-color: var(--gold); color: var(--text-1); }
.badge {
  display: inline-block; padding: 4px 12px;
  border: 1px solid var(--gold-dim); color: var(--gold);
  font-size: 10px; font-weight: 400;
  letter-spacing: .14em; text-transform: uppercase;
}

/* ── BREADCRUMB ─────────────────────────────── */
.breadcrumb {
  padding: 100px 0 0;
  font-size: 12px; font-weight: 300;
  color: var(--text-3); letter-spacing: .05em;
}
.breadcrumb a { color: var(--text-3); text-decoration: none; transition: color .2s; }
.breadcrumb a:hover { color: var(--gold); }
.breadcrumb .sep { margin: 0 8px; opacity: .4; }

/* ── HOME HERO ──────────────────────────────── */
.home-hero {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  text-align: center; padding-top: 80px;
  position: relative; overflow: hidden;
}
.home-hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 45%, rgba(196,150,58,.045) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner { max-width: 780px; padding: 0 var(--pad); }
.hero-logo {
  height: clamp(72px, 13vw, 120px);
  opacity: .9; margin-bottom: 48px;
}
.hero-eyebrow {
  font-size: 11px; font-weight: 400;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 22px;
}
.hero-title {
  font-family: var(--serif);
  font-size: clamp(44px, 7.5vw, 82px);
  font-weight: 300; line-height: 1.08;
  color: var(--text-1); margin-bottom: 28px;
}
.hero-title em { font-style: italic; color: var(--gold-light); }
.hero-sub {
  font-size: clamp(15px, 1.8vw, 18px);
  font-weight: 300; color: var(--text-2);
  line-height: 1.75; max-width: 540px;
  margin: 0 auto 44px;
}
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-scroll {
  position: absolute; bottom: 36px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center;
  gap: 8px; color: var(--text-3);
  font-size: 10px; letter-spacing: .16em; text-transform: uppercase;
}
.hero-scroll::after {
  content: ''; display: block; width: 1px; height: 32px; background: var(--border-2);
}

/* ── HOME: FEATURED SESSION ─────────────────── */
.featured-session {
  border-top: 1px solid var(--border);
}
.featured-card {
  background: var(--surface); border: 1px solid var(--border);
  padding: 52px; display: grid;
  grid-template-columns: 1fr 1fr; gap: 56px; align-items: start;
  text-decoration: none; color: inherit;
  transition: border-color .3s;
}
.featured-card:hover { border-color: var(--border-2); }

/* ── HOME: PORTALS ──────────────────────────── */
.portals {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px;
  margin-top: 48px;
}
.portal-card {
  background: var(--surface); padding: 44px 36px;
  text-decoration: none; color: inherit;
  transition: background .2s; position: relative; overflow: hidden;
}
.portal-card:hover { background: var(--surface-2); }
.portal-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--gold); transform: scaleX(0);
  transform-origin: left; transition: transform .3s;
}
.portal-card:hover::before { transform: scaleX(1); }
.portal-num { font-size: 10px; font-weight: 400; letter-spacing: .2em; text-transform: uppercase; color: var(--text-3); margin-bottom: 22px; }
.portal-title { font-family: var(--serif); font-size: 26px; font-weight: 400; color: var(--text-1); margin-bottom: 8px; }
.portal-desc { font-size: 14px; font-weight: 300; color: var(--text-2); line-height: 1.7; }
.portal-arrow { margin-top: 24px; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--gold); }

/* ── HOME: STATS BAR ────────────────────────── */
.stats-bar {
  display: flex; justify-content: center; gap: 64px;
  padding: 56px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stat-n {
  font-family: var(--serif); font-size: 44px;
  font-weight: 300; color: var(--gold); line-height: 1; margin-bottom: 6px;
  text-align: center;
}
.stat-l {
  font-size: 11px; font-weight: 400;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--text-3); text-align: center;
}

/* ── MC NUMBER BADGE ────────────────────────── */
.mc-num {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 10px; font-weight: 500;
  letter-spacing: .2em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 18px;
}
.mc-num::before {
  content: ''; display: inline-block;
  width: 18px; height: 1px; background: var(--gold);
}
.mc-guest {
  font-family: var(--serif);
  font-size: 22px; font-weight: 400;
  color: var(--text-1); line-height: 1.1; margin-bottom: 6px;
}
.mc-topic {
  font-family: var(--serif);
  font-size: 15px; font-style: italic;
  color: var(--gold-light); margin-bottom: 14px;
}
.mc-meta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
.mc-meta span {
  font-size: 11px; font-weight: 400;
  letter-spacing: .08em; text-transform: uppercase; color: var(--text-3);
}

/* ── SESSIONS ARCHIVE ───────────────────────── */
.page-header {
  padding: 120px 0 var(--section);
  border-bottom: 1px solid var(--border);
}
.page-header .h2 { margin-bottom: 16px; }

.concept-filters {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-bottom: 40px; padding-top: 40px;
}
.filter-btn {
  padding: 6px 16px; background: none;
  border: 1px solid var(--border); color: var(--text-3);
  font-family: var(--sans); font-size: 11px; font-weight: 400;
  letter-spacing: .1em; text-transform: uppercase;
  cursor: pointer; transition: all .2s;
}
.filter-btn:hover,
.filter-btn.active {
  border-color: var(--gold); color: var(--gold);
  background: var(--gold-dim);
}

.sessions-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px;
}
.mc-card {
  background: var(--surface); padding: 34px;
  transition: background .2s; position: relative;
  text-decoration: none; color: inherit; display: block;
}
.mc-card:hover { background: var(--surface-2); }
.mc-card-q {
  font-family: var(--serif); font-size: 14px; font-style: italic;
  color: var(--text-2); line-height: 1.6;
  border-left: 1px solid var(--border-2);
  padding-left: 12px; margin-top: 18px;
}
.mc-card.upcoming { background: transparent; border: 1px solid var(--border); overflow: hidden; }
.mc-card.upcoming::after {
  content: 'PRÓXIMAMENTE'; position: absolute; top: 16px; right: 16px;
  font-size: 9px; font-weight: 500; letter-spacing: .18em;
  color: var(--gold); background: var(--gold-dim); padding: 3px 10px;
}

/* ── INDIVIDUAL SESSION PAGE ────────────────── */
.session-hero {
  padding: 40px 0 var(--section);
  border-bottom: 1px solid var(--border);
}
.session-hero .mc-num { margin-bottom: 24px; }
.session-hero .mc-guest {
  font-size: clamp(36px, 5vw, 60px); margin-bottom: 10px;
}
.session-hero .mc-topic {
  font-size: clamp(18px, 2.5vw, 24px); margin-bottom: 22px;
}
.session-hero .mc-meta { margin-bottom: 24px; }

.session-content { max-width: 720px; }
.session-content section { padding: var(--section) 0; border-bottom: 1px solid var(--border); }
.session-content section:last-of-type { border-bottom: none; }
.session-content .lbl { margin-bottom: 20px; }

.session-desc {
  font-size: 17px; font-weight: 300;
  color: var(--text-2); line-height: 1.9;
}
.session-desc p { margin-bottom: 16px; }

.session-ideas { counter-reset: idea; list-style: none; }
.session-ideas li {
  counter-increment: idea;
  padding: 20px 0; border-bottom: 1px solid var(--border);
  font-size: 15px; font-weight: 300; color: var(--text-2); line-height: 1.8;
  display: flex; gap: 20px; align-items: flex-start;
}
.session-ideas li:last-child { border-bottom: none; }
.session-ideas li::before {
  content: counter(idea);
  font-family: var(--serif); font-size: 24px; font-weight: 300;
  color: var(--gold); opacity: .4; min-width: 24px; line-height: 1.4;
}
.session-ideas li strong {
  display: block; font-weight: 400; color: var(--text-1);
  font-size: 14px; margin-bottom: 4px;
}

.session-quote {
  font-family: var(--serif);
  font-size: clamp(18px, 2.2vw, 26px);
  font-style: italic; font-weight: 300;
  color: var(--text-1); line-height: 1.45;
  padding-left: 20px; border-left: 2px solid var(--gold);
  margin-bottom: 28px;
}

.session-reflection {
  background: var(--surface); border: 1px solid var(--border);
  padding: 36px;
}
.session-reflection p {
  font-size: 15px; font-weight: 300;
  color: var(--text-2); line-height: 1.85;
}

.session-resources {
  list-style: none;
}
.session-resources li {
  padding: 16px 0; border-bottom: 1px solid var(--border);
  font-size: 14px; color: var(--text-2);
}
.session-resources li:last-child { border-bottom: none; }
.session-resources a { color: var(--gold); text-decoration: none; }
.session-resources a:hover { text-decoration: underline; }

/* Related sessions */
.related-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px;
  margin-top: 24px;
}

/* Session prev/next navigation */
.session-pager {
  display: flex; justify-content: space-between; align-items: center;
  padding: 48px 0; gap: 20px;
}
.pager-link {
  text-decoration: none; color: inherit;
  font-size: 13px; transition: color .2s;
}
.pager-link:hover { color: var(--gold); }
.pager-link .pager-dir {
  font-size: 10px; letter-spacing: .15em;
  text-transform: uppercase; color: var(--text-3);
  margin-bottom: 4px; display: block;
}
.pager-link .pager-name {
  font-family: var(--serif); font-size: 18px;
  font-weight: 400; color: var(--text-1);
}
.pager-center {
  text-align: center;
}
.pager-center a {
  font-size: 11px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--text-3);
  text-decoration: none;
}
.pager-center a:hover { color: var(--gold); }

/* ── PHILOSOPHY PAGE ────────────────────────── */
.concept-block {
  padding: var(--section) 0;
  border-bottom: 1px solid var(--border);
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 60px; align-items: start;
}
.concept-block:last-child { border-bottom: none; }
.concept-name-big {
  font-family: var(--serif); font-size: clamp(36px, 5vw, 56px);
  font-weight: 300; color: var(--text-1); margin-bottom: 8px;
}
.concept-tr {
  font-family: var(--serif); font-size: 17px;
  font-style: italic; color: var(--gold); margin-bottom: 28px;
}
.concept-body {
  font-size: 16px; font-weight: 300;
  color: var(--text-2); line-height: 1.85;
}
.concept-body p { margin-bottom: 16px; }
.concept-sessions { margin-top: 32px; }
.concept-sessions .lbl { margin-bottom: 12px; }
.concept-session-link {
  display: block; padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px; color: var(--text-2);
  text-decoration: none; transition: color .2s;
}
.concept-session-link:hover { color: var(--gold); }
.concept-session-link:last-child { border-bottom: none; }

/* Secondary concepts grid */
.secondary-concepts {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px;
}
.sec-concept {
  background: var(--surface); padding: 32px;
  transition: background .2s;
}
.sec-concept:hover { background: var(--surface-2); }
.sec-concept-name {
  font-family: var(--serif); font-size: 22px;
  font-weight: 400; color: var(--text-1); margin-bottom: 6px;
}
.sec-concept-desc {
  font-size: 13px; font-weight: 300;
  color: var(--text-2); line-height: 1.7;
}

/* ── SESSION GALLERY ────────────────────────── */
.session-gallery { margin-top: 32px; }
.gallery-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 4px;
}
.gallery-grid img {
  width: 100%; height: 220px;
  object-fit: cover; display: block;
  border-radius: 2px;
  filter: grayscale(.15);
  transition: filter .3s, transform .3s;
  cursor: pointer;
}
.gallery-grid img:hover {
  filter: grayscale(0); transform: scale(1.02);
}
@media (max-width: 540px) {
  .gallery-grid { grid-template-columns: 1fr 1fr; }
  .gallery-grid img { height: 160px; }
}

/* ── READING PAGE ───────────────────────────── */
.books-section { margin-bottom: 48px; }
.books-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px;
}
.book-card {
  background: var(--surface); padding: 36px;
  transition: background .2s;
}
.book-card:hover { background: var(--surface-2); }
.book-type { font-size: 10px; font-weight: 500; letter-spacing: .2em; text-transform: uppercase; color: var(--gold); margin-bottom: 14px; }
.book-title { font-family: var(--serif); font-size: 22px; font-weight: 400; color: var(--text-1); line-height: 1.2; margin-bottom: 6px; }
.book-author { font-family: var(--serif); font-size: 15px; font-style: italic; color: var(--text-2); margin-bottom: 18px; }
.book-note { font-size: 13px; font-weight: 300; color: var(--text-3); line-height: 1.75; }

/* ── COMMUNITY PAGE ─────────────────────────── */
.com-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: start;
}
.com-left p {
  font-size: 16px; font-weight: 300;
  color: var(--text-2); line-height: 1.85; margin-top: 20px;
}
.values { margin-top: 44px; display: flex; flex-direction: column; gap: 22px; }
.val-row { display: flex; gap: 18px; }
.val-n { font-family: var(--serif); font-size: 22px; font-weight: 300; color: var(--gold); opacity: .45; min-width: 26px; line-height: 1.2; }
.val-text { font-size: 14px; font-weight: 300; color: var(--text-2); line-height: 1.7; }
.val-text strong { display: block; font-weight: 400; color: var(--text-1); font-size: 13px; letter-spacing: .04em; margin-bottom: 4px; }
.preguntas { padding: 40px; background: var(--bg); border: 1px solid var(--border); }
.preg-title { font-size: 10px; font-weight: 500; letter-spacing: .2em; text-transform: uppercase; color: var(--gold); margin-bottom: 26px; }
.preg-item { padding: 18px 0; border-bottom: 1px solid var(--border); font-size: 13.5px; font-weight: 300; color: var(--text-2); line-height: 1.65; }
.preg-item:last-child { border-bottom: none; padding-bottom: 0; }
.preg-item strong { display: block; font-weight: 400; color: var(--text-1); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 5px; }

/* ── RESPONSIVE ─────────────────────────────── */
@media (max-width: 1000px) {
  .sessions-grid { grid-template-columns: repeat(2, 1fr); }
  .featured-card { grid-template-columns: 1fr; gap: 40px; }
  .concept-block { grid-template-columns: 1fr; gap: 36px; }
  .secondary-concepts { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .sessions-grid { grid-template-columns: 1fr; }
  .portals { grid-template-columns: 1fr; }
  .books-grid { grid-template-columns: 1fr; }
  .com-grid { grid-template-columns: 1fr; gap: 48px; }
  .related-grid { grid-template-columns: 1fr; }
  .stats-bar { gap: 32px; flex-wrap: wrap; justify-content: flex-start; padding-left: var(--pad); }
  .session-pager { flex-direction: column; text-align: center; }
  .nav-links {
    display: none; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(11,10,9,.98);
    padding: 24px var(--pad) 32px; gap: 22px;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-r { text-align: left; }
  .footer-center { text-align: left; }
  .featured-card { padding: 32px 24px; }
}
@media (max-width: 540px) {
  .secondary-concepts { grid-template-columns: 1fr; }
  .mc-card { padding: 28px 22px; }
}

/* ── ANIMATIONS ─────────────────────────────── */
.fade { opacity: 0; transform: translateY(16px); transition: opacity .5s ease, transform .5s ease; }
.fade.visible { opacity: 1; transform: translateY(0); }