/* Twiddle Box — umbrella marketing site */
@import url("./design-tokens.css");

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--tb-bg);
  color: var(--tb-text);
  font-family: var(--tb-font-body);
  font-size: var(--tb-text-base);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--tb-ember-bright); text-decoration: none; }
a:hover { color: var(--tb-text); }

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--tb-space-4) var(--tb-space-8);
  background: rgba(22, 24, 27, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--tb-border);
}

.wordmark {
  font-family: var(--tb-font-display);
  font-size: var(--tb-text-xl);
  font-weight: 400;
  color: var(--tb-text);
  letter-spacing: 0.04em;
}
.wordmark:hover { color: var(--tb-text); }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--tb-space-8);
}

.nav-links a {
  font-size: var(--tb-text-sm);
  font-weight: 500;
  color: var(--tb-muted);
  letter-spacing: 0.02em;
  transition: color 0.15s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--tb-text); }
.nav-links a.active { color: var(--tb-ember-bright); }

.nav-cta {
  background: var(--tb-ember);
  color: var(--tb-text) !important;
  padding: var(--tb-space-2) var(--tb-space-6);
  border-radius: var(--tb-radius-sm);
  font-weight: 600 !important;
  transition: background 0.15s !important;
}
.nav-cta:hover { background: var(--tb-ember-bright) !important; color: var(--tb-text) !important; }

/* hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--tb-muted);
  border-radius: 2px;
  transition: all 0.2s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   LAYOUT HELPERS
   ============================================================ */
.container {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 var(--tb-space-8);
}

section { padding: var(--tb-space-24) var(--tb-space-8); }
section .container { padding: 0; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  padding: var(--tb-space-24) var(--tb-space-8);
  text-align: center;
  background: linear-gradient(160deg, var(--tb-raised) 0%, var(--tb-bg) 60%);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(226,86,43,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-eyebrow {
  display: inline-block;
  font-size: var(--tb-text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--tb-ember-bright);
  margin-bottom: var(--tb-space-6);
}

.hero h1 {
  font-family: var(--tb-font-display);
  font-size: clamp(2.2rem, 5vw, var(--tb-text-5xl));
  font-weight: 400;
  line-height: 1.1;
  max-width: 18ch;
  margin: 0 auto;
  letter-spacing: 0.01em;
}

.hero h1 em {
  font-style: normal;
  color: var(--tb-ember-bright);
}

.hero-sub {
  color: var(--tb-muted);
  max-width: 52ch;
  margin: var(--tb-space-6) auto 0;
  font-size: var(--tb-text-lg);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--tb-space-4);
  margin-top: var(--tb-space-10);
  flex-wrap: wrap;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--tb-space-2);
  font-family: var(--tb-font-body);
  font-size: var(--tb-text-sm);
  font-weight: 600;
  padding: var(--tb-space-3) var(--tb-space-8);
  border-radius: var(--tb-radius-sm);
  border: none;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, box-shadow 0.15s;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.btn-primary {
  background: var(--tb-ember);
  color: var(--tb-text);
  box-shadow: var(--tb-glow);
}
.btn-primary:hover {
  background: var(--tb-ember-bright);
  color: var(--tb-text);
  box-shadow: 0 0 32px rgba(226,86,43,0.4);
}

.btn-ghost {
  background: transparent;
  color: var(--tb-muted);
  border: 1px solid var(--tb-border);
}
.btn-ghost:hover {
  color: var(--tb-text);
  border-color: var(--tb-iron-light);
}

/* ============================================================
   SECTION HEADINGS
   ============================================================ */
.section-label {
  font-size: var(--tb-text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--tb-ember-bright);
  margin-bottom: var(--tb-space-4);
}

h2.section-title {
  font-family: var(--tb-font-display);
  font-size: clamp(1.6rem, 3vw, var(--tb-text-3xl));
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0.01em;
  margin-bottom: var(--tb-space-6);
}

.section-body {
  color: var(--tb-muted);
  max-width: 60ch;
  line-height: 1.8;
}

/* ============================================================
   PRODUCT CARDS (home page)
   ============================================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--tb-space-6);
  margin-top: var(--tb-space-12);
}

.product-card {
  background: var(--tb-surface);
  border: 1px solid var(--tb-border);
  border-radius: var(--tb-radius-md);
  padding: var(--tb-space-8);
  transition: border-color 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
  gap: var(--tb-space-4);
}
.product-card:hover {
  border-color: var(--tb-iron-light);
  box-shadow: var(--tb-shadow);
}
.product-card.forge:hover { border-color: var(--tb-ember); }

.card-tier {
  font-size: var(--tb-text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--tb-muted);
}
.card-tier.forge { color: var(--tb-ember-bright); }

.product-card h3 {
  font-family: var(--tb-font-display);
  font-size: var(--tb-text-xl);
  font-weight: 400;
  letter-spacing: 0.02em;
}

.product-card p {
  color: var(--tb-muted);
  font-size: var(--tb-text-sm);
  line-height: 1.75;
  flex: 1;
}

.card-tagline {
  font-size: var(--tb-text-xs);
  color: var(--tb-ember-bright);
  letter-spacing: 0.02em;
  font-style: italic;
  padding-top: var(--tb-space-2);
  border-top: 1px solid var(--tb-border);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--tb-space-2);
  font-size: var(--tb-text-sm);
  font-weight: 600;
  color: var(--tb-ember-bright);
  margin-top: var(--tb-space-2);
  transition: gap 0.15s;
}
.card-link:hover { gap: var(--tb-space-3); color: var(--tb-ember-bright); }

/* ============================================================
   FEATURE PILLARS
   ============================================================ */
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--tb-space-6);
  margin-top: var(--tb-space-12);
}

.pillar {
  padding: var(--tb-space-6);
  background: var(--tb-surface);
  border: 1px solid var(--tb-border);
  border-radius: var(--tb-radius-md);
}

.pillar-icon {
  font-size: 1.5rem;
  margin-bottom: var(--tb-space-4);
}

.pillar h3 {
  font-family: var(--tb-font-display);
  font-size: var(--tb-text-base);
  font-weight: 400;
  margin-bottom: var(--tb-space-3);
  letter-spacing: 0.03em;
}

.pillar p {
  font-size: var(--tb-text-sm);
  color: var(--tb-muted);
  line-height: 1.75;
}

/* ============================================================
   TWO-COLUMN SPLIT
   ============================================================ */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--tb-space-16);
  align-items: center;
}

@media (max-width: 720px) {
  .split { grid-template-columns: 1fr; gap: var(--tb-space-12); }
}

/* ============================================================
   SERVICES LIST
   ============================================================ */
.services {
  display: flex;
  flex-direction: column;
  gap: var(--tb-space-4);
  margin-top: var(--tb-space-10);
}

.service-item {
  display: flex;
  gap: var(--tb-space-6);
  padding: var(--tb-space-6);
  background: var(--tb-surface);
  border: 1px solid var(--tb-border);
  border-radius: var(--tb-radius-md);
  transition: border-color 0.2s;
}
.service-item:hover { border-color: var(--tb-iron-light); }

.service-num {
  font-family: var(--tb-font-display);
  font-size: var(--tb-text-2xl);
  color: var(--tb-border);
  line-height: 1;
  flex-shrink: 0;
  width: 2ch;
}

.service-item h3 {
  font-family: var(--tb-font-display);
  font-size: var(--tb-text-base);
  font-weight: 400;
  margin-bottom: var(--tb-space-2);
  letter-spacing: 0.03em;
}

.service-item p {
  font-size: var(--tb-text-sm);
  color: var(--tb-muted);
  line-height: 1.75;
}

/* ============================================================
   CONTACT FORM
   ============================================================ */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--tb-space-4);
  max-width: 600px;
  margin-top: var(--tb-space-10);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--tb-space-2);
}

.form-group label {
  font-size: var(--tb-text-sm);
  font-weight: 500;
  color: var(--tb-muted);
  letter-spacing: 0.02em;
}

.form-group input,
.form-group textarea,
.form-group select {
  background: var(--tb-surface);
  border: 1px solid var(--tb-border);
  border-radius: var(--tb-radius-sm);
  color: var(--tb-text);
  font-family: var(--tb-font-body);
  font-size: var(--tb-text-sm);
  padding: var(--tb-space-3) var(--tb-space-4);
  transition: border-color 0.15s;
  outline: none;
  width: 100%;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus { border-color: var(--tb-ember); }

.form-group textarea { min-height: 140px; resize: vertical; }

/* ============================================================
   CTA BAND
   ============================================================ */
.cta-band {
  text-align: center;
  background: var(--tb-surface);
  border-top: 1px solid var(--tb-border);
  border-bottom: 1px solid var(--tb-border);
}

.cta-band h2 {
  font-family: var(--tb-font-display);
  font-size: clamp(1.4rem, 3vw, var(--tb-text-2xl));
  font-weight: 400;
  margin-bottom: var(--tb-space-4);
  letter-spacing: 0.01em;
}

.cta-band p { color: var(--tb-muted); margin-bottom: var(--tb-space-8); }

/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about-block {
  max-width: 680px;
}

.about-block p {
  color: var(--tb-muted);
  line-height: 1.85;
  margin-bottom: var(--tb-space-6);
}

.about-block p:last-child { margin-bottom: 0; }

.tier-list {
  display: flex;
  flex-direction: column;
  gap: var(--tb-space-4);
  margin-top: var(--tb-space-8);
}

.tier-item {
  display: flex;
  gap: var(--tb-space-6);
  padding: var(--tb-space-6);
  background: var(--tb-surface);
  border: 1px solid var(--tb-border);
  border-radius: var(--tb-radius-md);
}

.tier-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--tb-iron);
  margin-top: 6px;
  flex-shrink: 0;
}
.tier-dot.forge { background: var(--tb-ember); box-shadow: 0 0 8px rgba(226,86,43,0.5); }

.tier-item h3 {
  font-family: var(--tb-font-display);
  font-size: var(--tb-text-base);
  font-weight: 400;
  margin-bottom: var(--tb-space-2);
  letter-spacing: 0.03em;
}
.tier-item p { font-size: var(--tb-text-sm); color: var(--tb-muted); line-height: 1.75; }

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  border-top: 1px solid var(--tb-border);
  padding: var(--tb-space-12) var(--tb-space-8);
}

.footer-inner {
  max-width: 1060px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--tb-space-6);
}

.footer-brand {
  font-family: var(--tb-font-display);
  font-size: var(--tb-text-base);
  color: var(--tb-muted);
  letter-spacing: 0.04em;
}

.footer-links {
  display: flex;
  gap: var(--tb-space-8);
}

.footer-links a {
  font-size: var(--tb-text-sm);
  color: var(--tb-muted);
  transition: color 0.15s;
}
.footer-links a:hover { color: var(--tb-text); }

.footer-copy {
  width: 100%;
  font-size: var(--tb-text-xs);
  color: var(--tb-iron-light);
  margin-top: var(--tb-space-6);
  padding-top: var(--tb-space-6);
  border-top: 1px solid var(--tb-border);
}

/* ============================================================
   DIVIDER
   ============================================================ */
.divider {
  height: 1px;
  background: var(--tb-border);
  margin: 0 var(--tb-space-8);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .nav { padding: var(--tb-space-4) var(--tb-space-6); }

  .nav-links {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--tb-space-6);
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--tb-surface);
    border-bottom: 1px solid var(--tb-border);
    padding: var(--tb-space-8) var(--tb-space-6);
    z-index: 99;
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: var(--tb-text-base); }
  .nav-toggle { display: flex; }

  section { padding: var(--tb-space-16) var(--tb-space-6); }
  .hero { padding: var(--tb-space-16) var(--tb-space-6); }
  .hero h1 { font-size: clamp(1.8rem, 7vw, 2.8rem); }

  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-links { flex-wrap: wrap; gap: var(--tb-space-4); }

  .service-item { flex-direction: column; gap: var(--tb-space-3); }
  .service-num { font-size: var(--tb-text-xl); }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn { justify-content: center; }
  .products-grid { grid-template-columns: 1fr; }
  .pillars { grid-template-columns: 1fr; }
}