/* ============================================================
   Ideal Exit — Brand Hub
   Visual identity: ideal-exit-brand skill (canonical).
   Editorial / private-bank. Warm dark, cream ink, single gold accent.
   ============================================================ */

/* ---------- Tokens ---------- */
:root,
[data-theme="dark"] {
  --color-bg: #16140f;
  --color-surface: #1f1c16;
  --color-surface-2: #211e17;
  --color-deep: #0e0c08;
  --color-border: #2a2720;
  --color-divider: rgba(237, 233, 224, 0.14);
  --color-text: #ede9e0;
  --color-text-muted: #9b9588;
  --color-text-faint: #6b6960;
  --color-primary: #d4c5a0;
  --color-primary-hover: #e0d4b4;
  --color-on-primary: #16140f;
}

[data-theme="light"] {
  --color-bg: #faf8f5;
  --color-surface: #ffffff;
  --color-surface-2: #f3f0eb;
  --color-deep: #eceae4;
  --color-border: #d9d4ca;
  --color-divider: rgba(26, 24, 18, 0.12);
  --color-text: #1a1812;
  --color-text-muted: #6b6960;
  --color-text-faint: #a39e92;
  --color-primary: #8a7d5a;
  --color-primary-hover: #6e6344;
  --color-on-primary: #faf8f5;
}

:root {
  --font-display: "Cabinet Grotesk", Inter, system-ui, sans-serif;
  --font-body: "Satoshi", Inter, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Courier New", monospace;
  --maxw: 1120px;
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin: 0 0 0.6rem;
}
h1 { font-weight: 800; letter-spacing: -0.02em; }

/* Logo gold elements — theme-aware (CSS vars don't resolve in SVG presentation attrs, so target via class) */
.ie-gold-fill { fill: var(--color-primary); }
.ie-gold-stroke { stroke: var(--color-primary); }
p { margin: 0 0 1rem; }
em { color: var(--color-primary); font-style: italic; font-weight: 700; }

a {
  color: var(--color-text);
  text-decoration: none;
  border-bottom: 1px solid var(--color-primary);
  transition: color var(--transition), border-color var(--transition);
}
a:hover { color: var(--color-primary); }

.eyebrow {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  display: block;
  margin-bottom: 0.75rem;
}

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem; }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0.85rem 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-brand { display: flex; align-items: center; gap: 0.7rem; border-bottom: 0; }
.nav-logo { height: 30px; width: auto; display: block; }
.nav-wordmark {
  font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase;
  letter-spacing: 0.14em; color: var(--color-text-muted);
}
.theme-toggle {
  display: inline-flex; align-items: center; gap: 0.45rem;
  font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--color-text-muted);
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); padding: 0.45rem 0.7rem; cursor: pointer;
  transition: all var(--transition);
}
.theme-toggle:hover { color: var(--color-primary); border-color: var(--color-primary); }
.toggle-icon { width: 14px; height: 14px; }

/* ---------- Hero ---------- */
.hero {
  text-align: center; padding: 5rem 1.5rem 3.5rem;
  max-width: 820px; margin: 0 auto;
}
.hero-logo { height: 56px; width: auto; margin: 0 auto 2rem; display: block; }
.hero h1 { font-size: clamp(2.4rem, 1.2rem + 4vw, 4rem); margin-bottom: 1rem; }
.hero-tagline {
  font-size: clamp(1rem, 0.9rem + 0.4vw, 1.2rem);
  color: var(--color-text-muted); max-width: 620px; margin: 0 auto 1.75rem;
}
.hero-meta {
  display: flex; gap: 1.5rem; justify-content: center; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--color-text-faint);
}

/* ---------- Section cards grid ---------- */
.sections {
  max-width: var(--maxw); margin: 0 auto; padding: 1rem 1.5rem 4rem;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.25rem;
}
.section-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: 1.6rem 1.5rem;
  display: flex; flex-direction: column; gap: 0.4rem;
  transition: border-color var(--transition), transform var(--transition);
}
.section-card .card-num {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em;
  color: var(--color-primary); text-transform: uppercase;
}
.section-card h3 { font-size: 1.25rem; margin: 0.2rem 0; }
.section-card p { color: var(--color-text-muted); font-size: 0.92rem; margin: 0; }
.section-card.is-active { cursor: pointer; }
.section-card.is-active:hover { border-color: var(--color-primary); transform: translateY(-2px); }
.section-card.is-placeholder { opacity: 0.55; }
.section-card .card-status {
  margin-top: 0.6rem; font-family: var(--font-mono); font-size: 0.68rem;
  text-transform: uppercase; letter-spacing: 0.1em; color: var(--color-text-faint);
}
.section-card.is-active .card-status { color: var(--color-primary); }

/* ---------- Section 01: signature generator ---------- */
.sig-section {
  border-top: 1px solid var(--color-border);
  background: var(--color-deep);
  padding: 3.5rem 0 4.5rem;
}
.sig-head { max-width: var(--maxw); margin: 0 auto 2.5rem; padding: 0 1.5rem; }
.sig-head h2 { font-size: clamp(1.8rem, 1.2rem + 2vw, 2.6rem); }
.sig-head p { color: var(--color-text-muted); max-width: 640px; }

.sig-layout {
  max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem;
  display: grid; grid-template-columns: minmax(320px, 420px) 1fr; gap: 2.5rem;
  align-items: start;
}
@media (max-width: 860px) { .sig-layout { grid-template-columns: 1fr; } }

/* Form */
.sig-form { display: flex; flex-direction: column; gap: 1.1rem; }
.field { display: flex; flex-direction: column; gap: 0.35rem; }
.field label {
  font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--color-text-muted);
}
.field label .req { color: var(--color-primary); }
.field input {
  font-family: var(--font-body); font-size: 0.95rem;
  background: var(--color-surface); color: var(--color-text);
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  padding: 0.65rem 0.8rem; transition: border-color var(--transition);
}
.field input:focus { outline: none; border-color: var(--color-primary); }
.field input::placeholder { color: var(--color-text-faint); }
.field input:invalid:not(:placeholder-shown) { border-color: #b4524a; }

/* Preview column */
.sig-preview-wrap { position: sticky; top: 5rem; display: flex; flex-direction: column; gap: 1.25rem; }
.sig-tabs { display: inline-flex; gap: 0.4rem; }
.sig-tab {
  font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase;
  letter-spacing: 0.08em; padding: 0.45rem 0.9rem; cursor: pointer;
  background: transparent; color: var(--color-text-muted);
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.sig-tab.is-active { color: var(--color-on-primary); background: var(--color-primary); border-color: var(--color-primary); }

/* The signature canvas — independent of page theme so the preview reflects the chosen sig theme */
.sig-render {
  border-radius: var(--radius-lg); padding: 2rem; border: 1px solid var(--color-border);
  overflow-x: auto;
}
.sig-render.is-dark { background: #16140f; }
.sig-render.is-light { background: #faf8f5; }
.sig-render .placeholder {
  color: var(--color-text-faint); font-family: var(--font-mono);
  font-size: 0.8rem; text-align: center; padding: 2rem 0;
}

.sig-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.btn {
  font-family: var(--font-mono); font-size: 0.74rem; text-transform: uppercase;
  letter-spacing: 0.08em; padding: 0.7rem 1.1rem; cursor: pointer;
  border-radius: var(--radius-sm); border: 1px solid var(--color-primary);
  transition: all var(--transition);
}
.btn-primary { background: var(--color-primary); color: var(--color-on-primary); }
.btn-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); }
.btn-ghost { background: transparent; color: var(--color-primary); }
.btn-ghost:hover { background: var(--color-surface); }

.sig-note {
  font-size: 0.85rem; color: var(--color-text-muted); max-width: 640px;
  border-left: 2px solid var(--color-primary); padding-left: 1rem;
}
.sig-note strong { color: var(--color-text); }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--color-border); padding: 2.5rem 1.5rem;
  text-align: center; color: var(--color-text-faint);
  font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.06em;
}
.footer a { color: var(--color-text-muted); border-bottom-color: var(--color-divider); }

/* ---------- Toast ---------- */
.copied-toast {
  position: fixed; bottom: 1.5rem; left: 50%; transform: translateX(-50%) translateY(1rem);
  background: var(--color-primary); color: var(--color-on-primary);
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.04em;
  padding: 0.7rem 1.2rem; border-radius: var(--radius-sm);
  opacity: 0; pointer-events: none; transition: all var(--transition); z-index: 100;
}
.copied-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}