/* TrueApply — styles.css */
/* Mobile-first. Indigo + gold. Confident, trustworthy career brand. */

:root,
[data-theme="light"] {
  --indigo-900: #1E1B4B;
  --indigo-700: #3730A3;
  --indigo-600: #4338CA;
  --indigo-500: #6366F1;
  --indigo-200: #C7D2FE;
  --indigo-100: #E0E7FF;
  --indigo-50: #EEF2FF;
  --gold: #F59E0B;
  --gold-dark: #D97706;
  --gold-light: #FEF3C7;
  --white: #FFFFFF;
  --bg: #F8FAFC;
  --bg-alt: #F1F5F9;
  --text: #0F172A;
  --text-mid: #334155;
  --text-light: #64748B;
  --border: #E2E8F0;
  --card-bg: #FFFFFF;
  --prompt-bg: #EEF2FF;
  --prompt-border: #6366F1;
  --step-bg: #F8FAFC;
}

[data-theme="dark"] {
  --indigo-900: #0F0E2A;
  --indigo-700: #1E1B5E;
  --indigo-600: #3730A3;
  --indigo-500: #6366F1;
  --indigo-200: #3730A3;
  --indigo-100: #1E1B4B;
  --indigo-50: #181630;
  --gold: #F59E0B;
  --gold-dark: #D97706;
  --gold-light: #2D2410;
  --white: #1E1B4B;
  --bg: #0D0C1E;
  --bg-alt: #181630;
  --text: #F1F5F9;
  --text-mid: #CBD5E1;
  --text-light: #94A3B8;
  --border: #1E1B4B;
  --card-bg: #181630;
  --prompt-bg: #181630;
  --prompt-border: #6366F1;
  --step-bg: #181630;
}

/* ── Reset ─────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 17px; -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
  transition: background-color 0.3s, color 0.3s;
}

/* ── Navigation ─────────────────────────────────── */
.site-nav {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.5px;
}

.logo span { color: var(--gold); }

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: var(--text-light);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--indigo-600); }

.controls { display: flex; gap: 0.5rem; align-items: center; }

.toggle-btn {
  background: none;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  padding: 0.3rem 0.5rem;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-light);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
  line-height: 1;
}

.toggle-btn:hover { border-color: var(--gold); color: var(--text); }

/* ── Hero ───────────────────────────────────────── */
.hero {
  background: var(--indigo-900);
  margin-top: 1.5rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(99,102,241,0.25) 0%, transparent 65%),
              radial-gradient(ellipse at 20% 80%, rgba(245,158,11,0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3.5rem 1.25rem 4rem;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(99,102,241,0.25);
  border: 1px solid rgba(99,102,241,0.4);
  color: var(--indigo-200);
  border-radius: 100px;
  padding: 0.35rem 0.9rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  color: #FFFFFF;
  margin-bottom: 1.1rem;
  max-width: 620px;
}

.hero-sub {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.65;
  max-width: 520px;
  margin-bottom: 2rem;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--gold);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  padding: 0.875rem 1.75rem;
  border-radius: 12px;
  transition: background 0.2s, transform 0.15s;
  margin-bottom: 2rem;
}

.hero-cta:hover { background: var(--gold-dark); transform: translateY(-1px); }
.hero-cta:active { transform: scale(0.98); }

.hero-trust {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  color: rgba(255,255,255,0.45);
  font-size: 0.78rem;
}

.hero-trust .dot { opacity: 0.4; }

/* ── Premise Cards ──────────────────────────────── */
.premise {
  background: var(--bg);
  padding: 3rem 0;
  border-bottom: 1px solid var(--border);
}

.premise-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.premise-card {
  background: var(--card-bg);
  border: 1.5px solid var(--border);
  border-radius: 16px;
  padding: 1.75rem;
  transition: border-color 0.2s, transform 0.15s;
}

.premise-card:hover {
  border-color: var(--indigo-500);
  transform: translateY(-2px);
}

.premise-card--accent {
  border-color: var(--indigo-200);
  background: var(--indigo-50);
}

[data-theme="dark"] .premise-card--accent {
  border-color: var(--indigo-600);
  background: var(--indigo-100);
}

.premise-icon {
  color: var(--indigo-500);
  margin-bottom: 1rem;
}

.premise-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.6rem;
  letter-spacing: -0.2px;
}

.premise-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.65;
}

/* ── Guide / Article ────────────────────────────── */
.guide {
  padding: 3rem 0;
}

.guide-inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.guide-header {
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.guide-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--indigo-500);
  margin-bottom: 0.75rem;
}

.guide-header h2 {
  font-size: 1.65rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.5px;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.guide-meta {
  font-size: 0.82rem;
  color: var(--text-light);
}

.guide-content p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-mid);
  margin-bottom: 1.35rem;
}

.guide-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.3px;
  margin: 2.25rem 0 0.9rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
}

.guide-content h3:first-of-type {
  margin-top: 0;
}

/* ── Prompt Blocks ──────────────────────────────── */
.prompt-block {
  background: var(--prompt-bg);
  border-left: 3px solid var(--prompt-border);
  border-radius: 0 12px 12px 0;
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
}

.prompt-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--indigo-500);
  margin-bottom: 0.6rem;
}

.prompt-block p {
  font-size: 0.9rem !important;
  font-style: italic;
  color: var(--text-mid) !important;
  margin: 0 !important;
  line-height: 1.65 !important;
}

/* ── AdSense ────────────────────────────────────── */
.adsbygoogle { margin: 1.5rem 0 !important; }

/* ── How It Works ───────────────────────────────── */
.how-it-works {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 3rem 0;
}

.how-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
  text-align: center;
}

.how-inner h2 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.4px;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.how-sub {
  font-size: 0.95rem;
  color: var(--text-light);
  margin-bottom: 2.25rem;
}

.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  text-align: left;
}

.step {
  background: var(--card-bg);
  border: 1.5px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem;
  transition: border-color 0.2s;
}

.step:hover { border-color: var(--indigo-500); }

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  background: var(--indigo-900);
  color: #fff;
  border-radius: 10px;
  font-weight: 800;
  font-size: 0.9rem;
  margin-bottom: 0.9rem;
}

[data-theme="dark"] .step-num { background: var(--indigo-600); }

.step h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.4rem;
  letter-spacing: -0.2px;
}

.step p {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* ── About TrueApply ────────────────────────────── */
.about-ta {
  padding: 3rem 0;
}

.about-inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.about-text h2 {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.3px;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.about-text p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

.about-text a {
  color: var(--indigo-600);
  text-decoration: none;
  font-weight: 600;
}

.about-text a:hover { text-decoration: underline; }

.cta-btn {
  display: inline-flex;
  align-items: center;
  background: var(--indigo-900);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.8rem 1.5rem;
  border-radius: 10px;
  transition: background 0.2s;
}

.cta-btn:hover { background: var(--indigo-700); }

[data-theme="dark"] .cta-btn { background: var(--indigo-600); }
[data-theme="dark"] .cta-btn:hover { background: var(--indigo-500); }

/* ── Footer ─────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

.footer-logo {
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: -0.4px;
  color: var(--text);
  text-decoration: none;
}

.footer-logo span { color: var(--gold); }

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
}

.footer-nav a {
  color: var(--text-light);
  text-decoration: none;
  font-size: 0.82rem;
  transition: color 0.2s;
}

.footer-nav a:hover { color: var(--indigo-600); }

.footer-note {
  font-size: 0.78rem;
  color: var(--text-light);
}

.footer-note a {
  color: var(--text-light);
  text-decoration: none;
}

.footer-note a:hover { color: var(--indigo-600); }

/* ── Utilities ──────────────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* ── Responsive ─────────────────────────────────── */
@media (min-width: 480px) {
  .premise-inner { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 768px) {
  html { font-size: 18px; }

  .site-nav { padding: 1.5rem 2rem 0; }

  .hero-inner { padding: 5rem 2rem 5.5rem; }
  .hero h1 { font-size: 3.25rem; }
  .hero-sub { font-size: 1.1rem; }

  .premise-inner { grid-template-columns: 1fr 1fr 1fr; padding: 0 2rem; }
  .guide-inner { padding: 0 2rem; }
  .how-inner { padding: 0 2rem; }
  .steps { grid-template-columns: 1fr 1fr 1fr; }

  .about-inner {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    padding: 0 2rem;
    gap: 3rem;
  }

  .guide-header h2 { font-size: 1.85rem; }
  .footer-inner { flex-direction: row; justify-content: space-between; text-align: left; }
}

@media (min-width: 1100px) {
  .hero h1 { font-size: 3.75rem; }
}

/* Prevent layout shift on load */
@media (max-width: 479px) {
  .hero h1 { font-size: 2rem; letter-spacing: -0.5px; }
  .guide-header h2 { font-size: 1.35rem; }
}