/* =========================================================
   EverClimb — design tokens
   ========================================================= */
@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@400;500;600;700&family=Montserrat:wght@400;500;600;700&display=swap');

:root {
  /* Core brand palette */
  --obsidian: #0D1117;
  --granite:  #1F2933;
  --stone:    #D6D2C4;
  --summit:   #F7F5F2;
  --fog:      #9CA3AF;
  --midnight: #111827;
  --error:    #A3472D;

  /* Accent (Ember orange). hi/lo derive via color-mix. */
  --accent:      #C56A2D;
  --accent-hi:   color-mix(in oklab, var(--accent), white 14%);
  --accent-lo:   color-mix(in oklab, var(--accent), black 16%);
  --accent-soft: color-mix(in oklab, var(--accent), transparent 88%);

  /* Foreground / background roles (dark-first) */
  --bg-canvas:  var(--obsidian);
  --bg-surface: var(--granite);
  --bg-inset:   var(--midnight);

  --fg-primary:   var(--summit);
  --fg-secondary: #B8BCC2;
  --fg-tertiary:  var(--fog);

  --border-subtle:  rgba(214, 210, 196, 0.10);
  --border-default: rgba(214, 210, 196, 0.18);
  --border-strong:  rgba(214, 210, 196, 0.32);

  /* Type */
  --font-display: 'Oswald', 'Bebas Neue', 'Arial Narrow', sans-serif;
  --font-ui:      'Montserrat', 'Helvetica Neue', system-ui, -apple-system, Arial, sans-serif;
  --font-mono:    ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, Consolas, monospace;
  --tracking-eyebrow: 0.18em;

  /* Radius */
  --radius-button: 10px;
  --radius-card:   16px;
  --radius-large:  24px;

  /* Shadows */
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.18);

  /* Motion */
  --ease-standard: cubic-bezier(0.2, 0.6, 0.2, 1);
  --ease-out:      cubic-bezier(0.2, 0.8, 0.2, 1);
  --dur-fast: 140ms;
  --dur-base: 220ms;
}

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

html { scroll-behavior: smooth; }
html, body {
  margin: 0; padding: 0;
  background: var(--bg-canvas);
  color: var(--fg-primary);
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
button, input { font-family: inherit; }
a { color: inherit; }

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--fg-primary);
  line-height: 1.1;
  margin: 0;
  text-transform: uppercase;
}
p { margin: 0; }

.shell {
  width: 100%; max-width: 1200px;
  margin: 0 auto; padding: 0 32px;
}
.eyebrow {
  font-family: var(--font-ui);
  font-size: 12px; font-weight: 600;
  text-transform: uppercase; letter-spacing: var(--tracking-eyebrow);
  color: var(--accent);
  display: inline-block;
}

/* ---------- Buttons ---------- */
.btn {
  font-family: var(--font-ui); font-weight: 600;
  border: 0; border-radius: var(--radius-button);
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  text-decoration: none; white-space: nowrap; cursor: pointer;
  transition: background var(--dur-base) var(--ease-standard),
              color var(--dur-base) var(--ease-standard),
              border-color var(--dur-base), transform var(--dur-fast);
}
.btn--primary { background: var(--accent); color: var(--summit); }
.btn--primary:hover { background: var(--accent-hi); }
.btn--primary:active { background: var(--accent-lo); transform: translateY(1px); }
.btn--ghost { background: transparent; color: var(--accent); padding: 0; gap: 6px; }
.btn--ghost:hover { color: var(--accent-hi); gap: 9px; }
.btn--sm { height: 38px; padding: 0 16px; font-size: 13px; }
.btn--lg { height: 56px; padding: 0 26px; font-size: 16px; border-radius: 12px; }
.btn svg { width: 18px; height: 18px; flex: 0 0 auto; }
.btn--ghost svg { transition: transform var(--dur-base) var(--ease-standard); }
.btn--ghost:hover svg { transform: translateX(3px); }

/* ---------- Top nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 60;
  transition: background var(--dur-base) var(--ease-standard),
              border-color var(--dur-base), backdrop-filter var(--dur-base);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(13,17,23,0.78);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
}
.nav__inner {
  height: 74px; display: flex; align-items: center; gap: 32px;
}
.nav__brand { display: inline-flex; align-items: center; text-decoration: none; }
.nav__links {
  list-style: none; margin: 0 auto; padding: 0;
  display: flex; align-items: center; gap: 30px;
}
.nav__links a {
  display: inline-flex; align-items: center; gap: 7px;
  color: var(--fg-secondary); text-decoration: none;
  font-size: 14px; font-weight: 500;
  transition: color var(--dur-base);
}
.nav__links a:hover { color: var(--summit); }
.nav__actions { display: flex; align-items: center; gap: 12px; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  min-height: 94vh;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  padding: 168px 0 96px;
}
.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__bg img {
  width: 100%; height: 100%; object-fit: cover;
  filter: contrast(1.05) saturate(0.9);
}
.hero__bg::after {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(115% 80% at 50% 46%, rgba(13,17,23,0.30) 0%, rgba(13,17,23,0.66) 70%, rgba(13,17,23,0.80) 100%),
    linear-gradient(180deg, rgba(13,17,23,0.55) 0%, rgba(13,17,23,0.55) 38%, rgba(13,17,23,0.85) 80%, rgba(13,17,23,0.97) 100%);
}

.hero__content {
  position: relative; z-index: 1;
  max-width: 880px; margin: 0 auto;
  display: flex; flex-direction: column; align-items: center;
}
.hero__title {
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 84px);
  font-weight: 700; line-height: 1.0;
  letter-spacing: 0.01em; text-transform: uppercase;
  color: var(--summit); margin: 20px 0 0;
  text-wrap: balance;
  text-shadow: 0 2px 24px rgba(13,17,23,0.45);
}
.hero__lede {
  font-size: clamp(17px, 1.9vw, 20px); line-height: 1.55;
  color: var(--stone); max-width: 580px;
  margin: 28px auto 0; text-wrap: pretty;
  text-shadow: 0 1px 16px rgba(13,17,23,0.5);
}

/* hero signup */
.signup {
  display: flex; gap: 10px; margin: 36px auto 0;
  width: 100%; max-width: 480px;
}
.signup input {
  flex: 1; min-width: 0;
  height: 56px; padding: 0 18px;
  font-size: 15px; color: var(--summit);
  background: rgba(13,17,23,0.55);
  border: 1px solid var(--border-strong);
  border-radius: 12px; outline: 0;
  transition: border-color var(--dur-base), box-shadow var(--dur-base);
}
.signup input::placeholder { color: var(--fg-tertiary); }
.signup input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.signup .btn { flex: 0 0 auto; }
.hero__proof {
  margin: 18px auto 0;
  font-size: 13px; color: var(--fg-tertiary);
  letter-spacing: 0.01em;
}
.hero__proof strong { color: var(--stone); font-weight: 600; }

/* ---------- Sections ---------- */
.section { padding: 96px 0; }
.section--alt { background: var(--bg-inset); }
.sec-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 40px; margin-bottom: 52px;
}
.sec-head__text { max-width: 640px; }
.sec-head h2 {
  font-family: var(--font-display);
  font-size: clamp(34px, 4.4vw, 52px); font-weight: 700;
  text-transform: uppercase; color: var(--summit);
  margin: 12px 0 0; line-height: 1.02;
}
.sec-head__sub {
  font-size: 17px; color: var(--fg-secondary);
  margin-top: 14px; line-height: 1.5;
}
.sec-head__link { flex: 0 0 auto; padding-bottom: 6px; }

/* icon chip */
.ichip {
  display: inline-flex; align-items: center; justify-content: center;
  width: 48px; height: 48px; flex: 0 0 auto;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
}
.ichip svg { width: 26px; height: 26px; }

/* =====================================================
   NEWSLETTER — editorial layout (featured + stacked)
   ===================================================== */
.posts {
  display: grid; grid-template-columns: 1.25fr 1fr; gap: 40px;
  align-items: stretch;
}
.post:first-child {
  grid-row: span 2;
  display: flex; flex-direction: column; justify-content: center;
  gap: 18px; padding: 40px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-large);
  text-decoration: none;
}
.post:first-child .ichip { width: 60px; height: 60px; }
.post:first-child .ichip svg { width: 32px; height: 32px; }
.post:first-child .post__title { font-size: 30px; }
.post:not(:first-child) {
  display: grid; grid-template-columns: auto 1fr; gap: 18px;
  align-items: start; padding: 22px 0; text-decoration: none;
  border-bottom: 1px solid var(--border-subtle);
}
.post:nth-child(3) { border-bottom: 0; }

.post__title {
  font-family: var(--font-display); font-weight: 600;
  font-size: 22px; text-transform: uppercase; letter-spacing: 0.01em;
  color: var(--summit); line-height: 1.1;
  margin: 0; display: block; transition: color var(--dur-base);
}
.post:hover .post__title { color: var(--accent); }
.post__excerpt { font-size: 15px; color: var(--fg-secondary); line-height: 1.55; margin: 8px 0 0; display: block; }
.post__date2 {
  font-family: var(--font-mono); font-size: 12px;
  color: var(--fg-tertiary); letter-spacing: 0.02em; white-space: nowrap;
  margin-top: 10px; display: block;
}

/* =====================================================
   NEWSLETTER ARCHIVE PAGE
   ===================================================== */
.archive-list { border-top: 1px solid var(--border-subtle); }
.archive-post {
  display: grid; grid-template-columns: auto 1fr auto;
  align-items: center; gap: 22px;
  padding: 26px 4px; text-decoration: none;
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--dur-base);
}
.archive-post:hover { background: rgba(214,210,196,0.04); }
.archive-post:hover .archive-post__title { color: var(--accent); }
.archive-post__body { display: flex; flex-direction: column; gap: 6px; }
.archive-post__title {
  font-family: var(--font-display); font-weight: 600;
  font-size: 20px; text-transform: uppercase; letter-spacing: 0.01em;
  color: var(--summit); line-height: 1.15;
  transition: color var(--dur-base);
}
.archive-post__excerpt { font-size: 14px; color: var(--fg-secondary); line-height: 1.5; }
.archive-post__meta {
  font-family: var(--font-mono); font-size: 12px;
  color: var(--fg-tertiary); letter-spacing: 0.02em; white-space: nowrap;
  text-align: right;
}
.archive-empty { padding: 40px 4px; color: var(--fg-secondary); font-size: 15px; }
.archive-empty a { color: var(--accent); }

.pagination { display: flex; align-items: center; justify-content: center; gap: 20px; margin-top: 44px; }
.pagination__btn {
  height: 40px; padding: 0 20px;
  font-family: var(--font-ui); font-weight: 600; font-size: 13px;
  color: var(--summit); background: transparent;
  border: 1px solid var(--border-default); border-radius: var(--radius-button);
  cursor: pointer;
  transition: border-color var(--dur-base), background var(--dur-base), opacity var(--dur-base);
}
.pagination__btn:hover:not(:disabled) { border-color: var(--border-strong); background: rgba(214,210,196,0.05); }
.pagination__btn:disabled { opacity: 0.35; cursor: default; }
.pagination__label {
  font-family: var(--font-mono); font-size: 12px;
  color: var(--fg-tertiary); letter-spacing: 0.02em; white-space: nowrap;
}

@media (max-width: 560px) {
  .archive-post { grid-template-columns: auto 1fr; }
  .archive-post__meta { display: none; }
}

/* =====================================================
   RESOURCES
   ===================================================== */
.resources {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
}
.resource {
  display: flex; flex-direction: column; gap: 14px;
  padding: 28px; text-decoration: none;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  transition: transform var(--dur-base) var(--ease-standard),
              border-color var(--dur-base), box-shadow var(--dur-base);
}
.resource:hover {
  transform: translateY(-4px);
  border-color: var(--border-default);
  box-shadow: var(--shadow-md);
}
.resource__title {
  font-family: var(--font-display); font-weight: 600; font-size: 22px;
  text-transform: uppercase; letter-spacing: 0.01em;
  color: var(--summit); margin: 4px 0 0; line-height: 1.1;
}
.resource__desc { font-size: 14px; color: var(--fg-secondary); line-height: 1.55; margin: 0; flex: 1; }
.resource__more {
  font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--accent); display: inline-flex; align-items: center; gap: 6px;
  transition: gap var(--dur-base);
}
.resource:hover .resource__more { gap: 10px; }

/* =====================================================
   WHAT IS EVERCLIMB — value pillars (card layout)
   ===================================================== */
.explain { text-align: center; max-width: 760px; margin: 0 auto 56px; }
.explain h2 {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(36px, 5vw, 60px); text-transform: uppercase;
  color: var(--summit); margin: 12px 0 0; line-height: 1.0;
}
.explain p {
  font-size: 18px; color: var(--fg-secondary); line-height: 1.6;
  margin: 22px auto 0; max-width: 660px;
}

.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.pillar {
  display: flex; flex-direction: column; gap: 14px;
  padding: 32px 28px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
}
.pillar__title {
  font-family: var(--font-display); font-weight: 700; font-size: 26px;
  text-transform: uppercase; letter-spacing: 0.02em;
  color: var(--summit); margin: 0; line-height: 1.05;
}
.pillar__desc { font-size: 15px; color: var(--fg-secondary); line-height: 1.6; margin: 0; }

/* =====================================================
   FOOTER
   ===================================================== */
.footer { background: var(--bg-inset); border-top: 1px solid var(--border-subtle); padding-top: 72px; }
.footer__inner { display: grid; grid-template-columns: 1.3fr 2fr; gap: 64px; padding-bottom: 52px; }
.footer__tagline {
  font-family: var(--font-display); font-size: 16px; font-weight: 600;
  color: var(--stone); margin: 16px 0 22px;
  text-transform: uppercase; letter-spacing: 0.1em;
}
.footer__social { display: flex; gap: 12px; }
.footer__social a {
  width: 40px; height: 40px; border-radius: 10px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--fg-secondary); border: 1px solid var(--border-default);
  transition: color var(--dur-base), border-color var(--dur-base), background var(--dur-base);
}
.footer__social a:hover { color: var(--summit); border-color: var(--border-strong); background: rgba(214,210,196,0.05); }
.footer__social svg { width: 18px; height: 18px; }
.footer__cols { display: flex; justify-content: flex-end; }
.footer__col { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; }
.footer__col h6 {
  font-family: var(--font-ui); font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.14em; color: var(--accent);
  margin: 0 0 6px;
}
.footer__col a {
  color: var(--fg-secondary); text-decoration: none; font-size: 14px;
  display: inline-flex; align-items: center; gap: 8px;
  transition: color var(--dur-base);
}
.footer__col a:hover { color: var(--summit); }
.footer__fine {
  padding: 24px 0; border-top: 1px solid var(--border-subtle);
  display: flex; justify-content: space-between; gap: 16px;
  font-family: var(--font-mono); font-size: 12px; color: var(--fg-tertiary);
  letter-spacing: 0.02em;
}

/* ---------- reveal (fail-safe: visible by default, animates on view) ---------- */
@keyframes reveal-up { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
.reveal { opacity: 1; }
.reveal.in { animation: reveal-up 560ms var(--ease-out) both; }
@media (prefers-reduced-motion: reduce) { .reveal.in { animation: none; } }

/* ---------- responsive ---------- */
@media (max-width: 920px) {
  .nav__links { display: none; }
  .resources,
  .pillars { grid-template-columns: 1fr; }
  .posts { grid-template-columns: 1fr; }
  .post:first-child { grid-row: auto; }
  .footer__inner { grid-template-columns: 1fr; gap: 40px; }
  .footer__cols { justify-content: flex-start; }
  .sec-head { flex-direction: column; align-items: flex-start; gap: 18px; }
}
@media (max-width: 560px) {
  .shell { padding: 0 20px; }
  .signup { flex-direction: column; }
  .signup .btn { width: 100%; }
}