/* ==========================================================================
   WenceStudio by SmartDesign — Design System
   Premium editorial minimalism. Black base, restrained gold accent.
   ========================================================================== */

:root {
  /* Color tokens */
  --color-bg: #0a0a0a;
  --color-surface: #131313;
  --color-surface-raised: #1a1a1a;
  --color-primary: #0a0a0a;
  --color-secondary: #d9d9d9;
  --color-accent: #c9a45c;
  --color-accent-hover: #e0bc78;
  --color-accent-dim: rgba(201, 164, 92, 0.16);
  --color-text: #f2f0ec;
  --color-text-muted: #a8a29a;
  --color-border: #2a2a28;
  --color-success: #7fae8c;
  --color-warning: #d9a441;
  --color-error: #c96b5c;

  /* Typography */
  --font-display: Georgia, 'Iowan Old Style', 'Times New Roman', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;

  --fs-xs: 0.8rem;
  --fs-sm: 0.925rem;
  --fs-base: 1.0625rem;
  --fs-md: 1.25rem;
  --fs-lg: 1.75rem;
  --fs-xl: 2.5rem;
  --fs-2xl: 3.5rem;
  --fs-3xl: 4.75rem;

  /* Spacing scale */
  --sp-1: 0.5rem;
  --sp-2: 1rem;
  --sp-3: 1.5rem;
  --sp-4: 2rem;
  --sp-5: 3rem;
  --sp-6: 4.5rem;
  --sp-7: 6.5rem;
  --sp-8: 9rem;

  /* Radius / shadow */
  --radius-sm: 2px;
  --radius-md: 6px;
  --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.45);

  --max-width: 1180px;
  --border-hairline: 1px solid var(--color-border);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 var(--sp-3);
  color: var(--color-text);
  text-wrap: balance;
}

h1 { font-size: var(--fs-3xl); letter-spacing: -0.02em; }
h2 { font-size: var(--fs-2xl); letter-spacing: -0.015em; }
h3 { font-size: var(--fs-lg); }
h4 { font-size: var(--fs-md); }

p, li { text-wrap: pretty; }

p { margin: 0 0 var(--sp-3); color: var(--color-text); }
.lede { font-size: var(--fs-md); color: var(--color-text-muted); max-width: 42em; }

a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-hover); text-decoration: underline; }

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

ul, ol { padding-left: 1.25em; }
li { margin-bottom: 0.5em; }

/* Visible focus states everywhere */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-accent);
  color: #0a0a0a;
  padding: var(--sp-1) var(--sp-2);
  z-index: 200;
}
.skip-link:focus { left: var(--sp-2); top: var(--sp-2); }

/* ---------- Layout ---------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--sp-3);
}

section { padding: var(--sp-7) 0; }
@media (max-width: 640px) {
  section { padding: var(--sp-6) 0; }
}

.section-label {
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--sp-2);
  display: block;
}

.section-head { max-width: 46em; margin-bottom: var(--sp-5); }

.divider { border: none; border-top: var(--border-hairline); margin: var(--sp-6) 0; }

/* ---------- Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: var(--border-hairline);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-2) 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-display);
  font-size: var(--fs-md);
  color: var(--color-text);
  letter-spacing: 0.02em;
}
.brand:hover { color: var(--color-accent); text-decoration: none; }
.brand strong { color: var(--color-accent); font-weight: 400; }
.brand-logo {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: nowrap;
}
.nav-links a {
  color: var(--color-secondary);
  font-size: var(--fs-sm);
}
.nav-links a:hover, .nav-links a[aria-current="page"] {
  color: var(--color-accent);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: var(--border-hairline);
  color: var(--color-text);
  padding: 0.4em 0.7em;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* ---------- Nav dropdown ("Explore") ---------- */
.nav-dropdown { position: relative; }

.nav-dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  background: none;
  border: none;
  margin: 0;
  padding: 0;
  color: var(--color-secondary);
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  line-height: 1.4;
  cursor: pointer;
}
.nav-dropdown-trigger:hover,
.nav-dropdown-trigger[aria-expanded="true"],
.nav-dropdown-trigger.has-active-child {
  color: var(--color-accent);
}

.nav-caret {
  font-size: 0.65em;
  transition: transform 0.18s ease;
}
.nav-dropdown-trigger[aria-expanded="true"] .nav-caret { transform: rotate(180deg); }

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 0.9rem);
  left: 50%;
  transform: translate(-50%, -6px);
  min-width: 220px;
  margin: 0;
  padding: var(--sp-1) 0;
  list-style: none;
  background: var(--color-surface);
  border: var(--border-hairline);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s;
  z-index: 150;
}
.nav-dropdown-menu.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0);
}
.nav-dropdown-menu li { margin: 0; }
.nav-dropdown-menu a {
  display: block;
  padding: 0.65em 1.1em;
  color: var(--color-secondary);
  font-size: var(--fs-sm);
  white-space: nowrap;
}
.nav-dropdown-menu a:hover,
.nav-dropdown-menu a[aria-current="page"] {
  background: var(--color-accent-dim);
  color: var(--color-accent);
  text-decoration: none;
}

@media (max-width: 1180px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: var(--border-hairline);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: var(--sp-2) var(--sp-3);
    display: none;
  }
  .nav-links.is-open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: var(--sp-2) 0; border-bottom: var(--border-hairline); }
  .nav-links li:last-child a { border-bottom: none; }

  .nav-dropdown { width: 100%; }
  .nav-dropdown-trigger {
    width: 100%;
    justify-content: space-between;
    padding: var(--sp-2) 0;
    border-bottom: var(--border-hairline);
  }
  .nav-dropdown-menu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    max-height: 0;
    overflow: hidden;
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
    transition: max-height 0.2s ease;
  }
  .nav-dropdown-menu.is-open { max-height: 24rem; padding: 0.25rem 0 0.5rem; }
  .nav-dropdown-menu a { padding: 0.6em 0 0.6em var(--sp-3); border-bottom: none; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.9em 1.6em;
  font-size: var(--fs-sm);
  font-family: var(--font-body);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
  text-decoration: none;
  white-space: nowrap;
}
.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--color-accent);
  color: #14110a;
  font-weight: 600;
}
.btn-primary:hover { background: var(--color-accent-hover); color: #14110a; text-decoration: none; }

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-secondary:hover { border-color: var(--color-accent); color: var(--color-accent); text-decoration: none; }

.btn-row { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin-top: var(--sp-4); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: var(--sp-6) 0 var(--sp-7);
  border-bottom: var(--border-hairline);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -20%;
  right: -10%;
  width: 46%;
  height: 140%;
  background: radial-gradient(circle at center, var(--color-accent-dim), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.hero .container { position: relative; z-index: 1; }
.hero h1:not(.hero-statement) { max-width: 16ch; }
.hero .lede { margin-top: var(--sp-3); }

.hero-statement {
  font-family: var(--font-display);
  font-weight: 400;
  color: var(--color-text);
  text-wrap: balance;
  margin: 0 0 var(--sp-3);
  max-width: 27ch;
  font-size: clamp(2.5rem, 1.5rem + 4.5vw, 5.5rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
@media (max-width: 640px) {
  .hero-statement { max-width: 20ch; }
}

/* ---------- Cards ---------- */
.card {
  background: var(--color-surface);
  border: var(--border-hairline);
  border-radius: var(--radius-md);
  padding: var(--sp-4);
}

.grid {
  display: grid;
  gap: var(--sp-3);
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 880px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* Problem list */
.problem-list { list-style: none; padding: 0; display: grid; gap: var(--sp-2); margin: 0; }
.problem-list li {
  border: var(--border-hairline);
  border-left: 2px solid var(--color-accent);
  padding: var(--sp-3);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  margin: 0;
}

/* Transformation table */
.transform-table {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3);
}
@media (max-width: 720px) { .transform-table { grid-template-columns: 1fr; } }
.transform-col { border: var(--border-hairline); border-radius: var(--radius-md); padding: var(--sp-4); }
.transform-col.before { background: var(--color-surface); }
.transform-col.after { background: var(--color-surface-raised); border-color: var(--color-accent-dim); }
.transform-col h3 { font-size: var(--fs-base); text-transform: uppercase; letter-spacing: 0.08em; font-family: var(--font-body); }
.transform-col.after h3 { color: var(--color-accent); }
.transform-col ul { list-style: none; padding: 0; margin: 0; }
.transform-col li { padding: 0.5em 0; border-bottom: var(--border-hairline); }
.transform-col li:last-child { border-bottom: none; }

/* AETHER stages */
.stage-list { display: grid; gap: var(--sp-2); }
.stage {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--sp-3);
  border: var(--border-hairline);
  border-radius: var(--radius-md);
  padding: var(--sp-4);
  background: var(--color-surface);
  align-items: start;
}
.stage-letter {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  color: var(--color-accent);
  border: 1px solid var(--color-accent-dim);
  border-radius: 50%;
  width: 2.4em;
  height: 2.4em;
  display: flex;
  align-items: center;
  justify-content: center;
}
.stage h3 { margin-bottom: var(--sp-1); }
.stage-output { font-size: var(--fs-sm); color: var(--color-accent); margin-top: var(--sp-1); }
@media (max-width: 640px) { .stage { grid-template-columns: 1fr; } }

/* Service cards */
.service-card {
  border: var(--border-hairline);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  padding: var(--sp-4);
  display: flex;
  flex-direction: column;
}
.service-card .price { color: var(--color-accent); font-size: var(--fs-sm); margin-top: auto; padding-top: var(--sp-2); }
.tier-order { font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: 0.1em; color: var(--color-text-muted); }

/* Comparison table */
.compare-table { width: 100%; border-collapse: collapse; font-size: var(--fs-sm); }
.compare-table th, .compare-table td { border: var(--border-hairline); padding: var(--sp-2); text-align: left; vertical-align: top; }
.compare-table th { background: var(--color-surface); color: var(--color-accent); font-weight: 600; }
.table-scroll { overflow-x: auto; }

/* Badges / notices */
.notice {
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--sp-2) var(--sp-3);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  background: var(--color-surface);
}
.placeholder-tag {
  display: inline-block;
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-warning);
  border: 1px solid var(--color-warning);
  border-radius: var(--radius-sm);
  padding: 0.15em 0.5em;
  margin-left: 0.5em;
}

/* Insight / article cards */
.article-card {
  border: var(--border-hairline);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  padding: var(--sp-4);
}
.pillar-tag {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
}

/* Diagram */
.flow-diagram {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-4) 0;
}
.flow-node {
  border: var(--border-hairline);
  border-radius: var(--radius-sm);
  padding: var(--sp-2) var(--sp-3);
  font-size: var(--fs-sm);
  background: var(--color-surface);
}
.flow-arrow { color: var(--color-accent); font-size: var(--fs-md); }

/* ---------- Forms ---------- */
.form-field { margin-bottom: var(--sp-3); }
.form-field label { display: block; margin-bottom: 0.4em; font-size: var(--fs-sm); color: var(--color-secondary); }
.form-field .hint { font-size: var(--fs-xs); color: var(--color-text-muted); margin-top: 0.3em; }
input[type="text"], input[type="email"], input[type="tel"], select, textarea {
  width: 100%;
  padding: 0.75em 0.9em;
  background: var(--color-surface);
  border: var(--border-hairline);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--fs-base);
}
textarea { min-height: 120px; resize: vertical; }
fieldset { border: var(--border-hairline); border-radius: var(--radius-md); padding: var(--sp-3); margin: 0 0 var(--sp-3); }
legend { padding: 0 0.5em; color: var(--color-accent); font-size: var(--fs-sm); }

.radio-scale { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.radio-scale label {
  display: flex;
  align-items: center;
  gap: 0.4em;
  border: var(--border-hairline);
  border-radius: var(--radius-sm);
  padding: 0.5em 0.9em;
  cursor: pointer;
  font-size: var(--fs-sm);
}
.radio-scale input:checked + span,
.radio-scale label:has(input:checked) {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.field-error { color: var(--color-error); font-size: var(--fs-xs); margin-top: 0.3em; display: none; }
.form-field.has-error input,
.form-field.has-error select,
.form-field.has-error textarea { border-color: var(--color-error); }
.form-field.has-error .field-error { display: block; }

.form-status {
  border-radius: var(--radius-sm);
  padding: var(--sp-2) var(--sp-3);
  margin-bottom: var(--sp-3);
  font-size: var(--fs-sm);
  display: none;
}
.form-status.is-visible { display: block; }
.form-status.success { background: rgba(127, 174, 140, 0.12); border: 1px solid var(--color-success); color: var(--color-success); }
.form-status.error { background: rgba(201, 107, 92, 0.12); border: 1px solid var(--color-error); color: var(--color-error); }

.checkbox-field { display: flex; align-items: flex-start; gap: 0.6em; }
.checkbox-field input { margin-top: 0.3em; }

/* ---------- Scorecard ---------- */
.progress-track {
  height: 6px;
  background: var(--color-surface);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: var(--sp-2);
}
.progress-fill { height: 100%; background: var(--color-accent); transition: width 0.3s ease; }
.progress-label { font-size: var(--fs-xs); color: var(--color-text-muted); margin-bottom: var(--sp-4); }

.sc-section { display: none; }
.sc-section.is-active { display: block; }

.sc-question { border: var(--border-hairline); border-radius: var(--radius-md); padding: var(--sp-3); margin-bottom: var(--sp-2); background: var(--color-surface); }
.sc-question p { font-weight: 600; margin-bottom: var(--sp-2); }

.sc-nav { display: flex; justify-content: space-between; gap: var(--sp-2); margin-top: var(--sp-4); }

.score-ring {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 8px solid var(--color-accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  margin: 0 auto var(--sp-4);
}
.score-ring .num { font-family: var(--font-display); font-size: var(--fs-xl); color: var(--color-accent); font-variant-numeric: tabular-nums; }
.score-ring .lbl { font-size: var(--fs-xs); color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.08em; }

.category-score { display: flex; align-items: center; gap: var(--sp-2); margin-bottom: var(--sp-2); }
.category-score .bar { flex: 1; height: 8px; background: var(--color-surface); border-radius: 4px; overflow: hidden; }
.category-score .bar-fill { height: 100%; background: var(--color-accent); transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1); }
.category-score .label { width: 11em; font-size: var(--fs-sm); }
.category-score .pct { width: 3.5em; text-align: right; font-size: var(--fs-sm); color: var(--color-text-muted); font-variant-numeric: tabular-nums; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: var(--border-hairline);
  padding: var(--sp-6) 0 var(--sp-4);
  background: var(--color-surface);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--sp-4);
  margin-bottom: var(--sp-5);
}
@media (max-width: 880px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-grid h4 { font-family: var(--font-body); font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: 0.1em; color: var(--color-secondary); margin-bottom: var(--sp-2); }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 0.6em; }
.footer-grid a { color: var(--color-text-muted); }
.footer-grid a:hover { color: var(--color-accent); }
.footer-bottom { border-top: var(--border-hairline); padding-top: var(--sp-3); display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--sp-2); }

/* ---------- Utility ---------- */
.text-muted { color: var(--color-text-muted); }
.text-accent { color: var(--color-accent); }
.mt-0 { margin-top: 0; }
.center { text-align: center; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}