/* ============================================================
   Darryl Gabriel Portfolio - Shared Stylesheet
   ============================================================ */

:root {
  --bg: #0b1220;
  --bg-soft: #0f1a2e;
  --card: #131f36;
  --card-hover: #182742;
  --border: #223350;
  --text: #e6edf7;
  --text-muted: #94a6c2;
  --text-dim: #64748b;
  --accent: #4f8ef7;
  --accent-soft: rgba(79, 142, 247, 0.12);
  --gold: #e8b04b;
  --gold-soft: rgba(232, 176, 75, 0.12);
  --teal: #2dd4bf;
  --teal-soft: rgba(45, 212, 191, 0.1);
  --green: #34d399;
  --radius: 14px;
  --maxw: 1080px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Navigation ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(11, 18, 32, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.nav-logo {
  font-weight: 700; font-size: 1.05rem; color: var(--text);
  text-decoration: none; letter-spacing: 0.02em;
}
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; gap: 26px; list-style: none; align-items: center; }
.nav-links a {
  color: var(--text-muted); text-decoration: none; font-size: 0.92rem; font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-cta {
  background: var(--accent); color: #fff !important; padding: 8px 16px;
  border-radius: 8px; font-weight: 600;
}
.nav-cta:hover { filter: brightness(1.1); }
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; }

/* ---------- Hero ---------- */
.hero {
  padding: 150px 0 80px;
  background:
    radial-gradient(ellipse 800px 400px at 70% -10%, rgba(79, 142, 247, 0.15), transparent),
    radial-gradient(ellipse 600px 300px at 10% 10%, rgba(232, 176, 75, 0.07), transparent);
}
.hero-eyebrow {
  color: var(--accent); font-weight: 600; font-size: 0.85rem;
  text-transform: uppercase; letter-spacing: 0.14em; margin-bottom: 16px;
}
.hero h1 {
  font-size: clamp(2.4rem, 6vw, 3.6rem); font-weight: 800;
  letter-spacing: -0.02em; line-height: 1.1; margin-bottom: 14px;
}
.hero-title {
  font-size: clamp(1.05rem, 2.5vw, 1.3rem); color: var(--text-muted);
  font-weight: 500; margin-bottom: 22px;
}
.hero-title .sep { color: var(--text-dim); margin: 0 10px; }
.hero p.lead {
  max-width: 640px; color: var(--text-muted); font-size: 1.05rem; margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 44px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 10px; font-weight: 600; font-size: 0.95rem;
  text-decoration: none; transition: all 0.2s; border: 1px solid transparent; cursor: pointer;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { filter: brightness(1.12); transform: translateY(-1px); }
.btn-outline { border-color: var(--border); color: var(--text); background: transparent; }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-gold { background: var(--gold); color: #1a1405; }
.btn-gold:hover { filter: brightness(1.08); transform: translateY(-1px); }

.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; max-width: 820px; }
.stat-chip {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px;
}
.stat-chip .num { font-size: 1.35rem; font-weight: 700; color: var(--text); display: block; }
.stat-chip .lbl { font-size: 0.8rem; color: var(--text-muted); }

/* ---------- Sections ---------- */
section { padding: 72px 0; }
section.alt { background: var(--bg-soft); }
.section-eyebrow {
  color: var(--accent); font-weight: 600; font-size: 0.8rem;
  text-transform: uppercase; letter-spacing: 0.14em; margin-bottom: 10px;
}
.section-title { font-size: clamp(1.6rem, 4vw, 2.1rem); font-weight: 700; letter-spacing: -0.01em; margin-bottom: 12px; }
.section-sub { color: var(--text-muted); max-width: 660px; margin-bottom: 40px; }

/* ---------- Two-track cards ---------- */
.track-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.track-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px; position: relative; overflow: hidden;
}
.track-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
}
.track-card.finance::before { background: linear-gradient(90deg, var(--gold), transparent); }
.track-card.cloud::before { background: linear-gradient(90deg, var(--accent), transparent); }
.track-card h3 { font-size: 1.2rem; margin-bottom: 6px; }
.track-card .track-tag {
  display: inline-block; font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; padding: 4px 10px; border-radius: 20px; margin-bottom: 14px;
}
.finance .track-tag { background: var(--gold-soft); color: var(--gold); }
.cloud .track-tag { background: var(--accent-soft); color: var(--accent); }
.track-card p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 16px; }
.track-card ul { list-style: none; }
.track-card li {
  color: var(--text-muted); font-size: 0.92rem; padding: 6px 0 6px 24px; position: relative;
}
.track-card li::before {
  content: '›'; position: absolute; left: 8px; font-weight: 700;
}
.finance li::before { color: var(--gold); }
.cloud li::before { color: var(--accent); }

/* ---------- Project cards ---------- */
.project-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.project-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; transition: border-color 0.2s, background 0.2s;
}
.project-card:hover { border-color: var(--accent); background: var(--card-hover); }
.project-card h3 { font-size: 1.05rem; margin-bottom: 10px; display: flex; align-items: center; gap: 10px; }
.project-card .icon { font-size: 1.2rem; }
.project-card p { color: var(--text-muted); font-size: 0.92rem; }
.project-card .metrics { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.metric-pill {
  background: var(--accent-soft); color: var(--accent); font-size: 0.78rem; font-weight: 600;
  padding: 4px 12px; border-radius: 20px;
}
.metric-pill.gold { background: var(--gold-soft); color: var(--gold); }
.metric-pill.teal { background: var(--teal-soft); color: var(--teal); }

/* ---------- Certifications ---------- */
.cert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.cert-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; text-align: left; transition: border-color 0.2s;
}
.cert-card:hover { border-color: var(--accent); }
.cert-card.featured { border-color: var(--gold); background: linear-gradient(160deg, rgba(232,176,75,0.06), var(--card) 55%); }
.cert-level {
  display: inline-block; font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; padding: 3px 10px; border-radius: 20px; margin-bottom: 12px;
}
.cert-level.expert { background: var(--accent-soft); color: var(--accent); }
.cert-level.associate { background: var(--teal-soft); color: var(--teal); }
.cert-level.specialist { background: var(--gold-soft); color: var(--gold); }
.cert-level.fundamentals { background: rgba(148,166,194,0.12); color: var(--text-muted); }
.cert-card h3 { font-size: 1rem; margin-bottom: 6px; }
.cert-card .cert-issuer { color: var(--text-dim); font-size: 0.82rem; }

/* ---------- Case study banner ---------- */
.case-banner {
  background: linear-gradient(135deg, var(--card), #16233d);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 40px; display: grid; grid-template-columns: 1.4fr 1fr; gap: 30px; align-items: center;
}
.case-banner h3 { font-size: 1.4rem; margin-bottom: 12px; }
.case-banner p { color: var(--text-muted); margin-bottom: 20px; }
.cost-steps { display: flex; align-items: center; gap: 12px; justify-content: center; flex-wrap: wrap; }
.cost-step { text-align: center; }
.cost-step .amount { font-size: 1.6rem; font-weight: 800; display: block; }
.cost-step .when { font-size: 0.75rem; color: var(--text-dim); }
.cost-step.start .amount { color: #f87171; }
.cost-step.mid .amount { color: var(--gold); }
.cost-step.end .amount { color: var(--green); }
.cost-arrow { color: var(--text-dim); font-size: 1.3rem; }

/* ---------- Testimonials ---------- */
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 34px; }
.quote-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; display: flex; flex-direction: column;
}
.quote-card .quote-mark { color: var(--accent); font-size: 2rem; font-weight: 800; line-height: 1; margin-bottom: 10px; }
.quote-card blockquote { color: var(--text-muted); font-size: 0.93rem; font-style: italic; flex: 1; }
.quote-attr { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--border); }
.quote-attr .name { font-weight: 600; font-size: 0.92rem; display: block; }
.quote-attr .role { color: var(--text-dim); font-size: 0.8rem; }
.center { text-align: center; }

/* ---------- Testimonials page ---------- */
.page-header { padding: 130px 0 50px; background: radial-gradient(ellipse 700px 300px at 50% -10%, rgba(79,142,247,0.14), transparent); }
.category-block { margin-bottom: 54px; }
.category-title {
  font-size: 1.25rem; font-weight: 700; margin-bottom: 20px;
  display: flex; align-items: center; gap: 12px;
}
.category-title .bar { width: 34px; height: 3px; background: var(--accent); border-radius: 2px; display: inline-block; }
.ref-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; margin-bottom: 18px; position: relative; scroll-margin-top: 90px;
}
.ref-card blockquote { color: var(--text-muted); font-size: 0.97rem; }
.ref-card .quote-attr { margin-top: 16px; }
.copy-link {
  position: absolute; top: 18px; right: 18px; background: none; border: 1px solid var(--border);
  color: var(--text-dim); border-radius: 8px; padding: 5px 11px; font-size: 0.75rem; cursor: pointer;
  transition: all 0.2s; font-family: inherit;
}
.copy-link:hover { color: var(--accent); border-color: var(--accent); }
.ref-card:target { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

/* ---------- Contact ---------- */
.contact-grid { display: flex; gap: 16px; flex-wrap: wrap; }
.contact-item {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 26px; text-decoration: none; color: var(--text);
  display: flex; align-items: center; gap: 12px; font-weight: 500; font-size: 0.95rem;
  transition: border-color 0.2s;
}
.contact-item:hover { border-color: var(--accent); }
.contact-item .ci { font-size: 1.2rem; }

/* ---------- Case study page ---------- */
.timeline { position: relative; padding-left: 34px; margin: 40px 0; }
.timeline::before {
  content: ''; position: absolute; left: 10px; top: 6px; bottom: 6px; width: 2px;
  background: var(--border);
}
.tl-item { position: relative; margin-bottom: 36px; }
.tl-item::before {
  content: ''; position: absolute; left: -30px; top: 6px; width: 12px; height: 12px;
  border-radius: 50%; background: var(--accent); border: 3px solid var(--bg);
}
.tl-item .tl-date { color: var(--accent); font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; }
.tl-item h3 { font-size: 1.1rem; margin: 6px 0 8px; }
.tl-item p { color: var(--text-muted); font-size: 0.95rem; }
.tl-item .tl-cost { font-weight: 700; margin-top: 6px; display: inline-block; padding: 3px 12px; border-radius: 20px; font-size: 0.85rem; }
.tl-cost.red { background: rgba(248,113,113,0.12); color: #f87171; }
.tl-cost.gold { background: var(--gold-soft); color: var(--gold); }
.tl-cost.green { background: rgba(52,211,153,0.12); color: var(--green); }

.arch-compare { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin: 30px 0; }
.arch-box { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; }
.arch-box h3 { font-size: 1rem; margin-bottom: 16px; }
.arch-box.before h3 { color: #f87171; }
.arch-box.after h3 { color: var(--green); }
.arch-box ul { list-style: none; }
.arch-box li { color: var(--text-muted); font-size: 0.9rem; padding: 7px 0; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; gap: 10px; }
.arch-box li:last-child { border-bottom: none; }
.arch-box li .cost { color: var(--text-dim); font-size: 0.82rem; white-space: nowrap; }
.arch-box li.total { font-weight: 700; color: var(--text); }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--border); padding: 36px 0; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
footer p { color: var(--text-dim); font-size: 0.85rem; }
.footer-links { display: flex; gap: 20px; }
.footer-links a { color: var(--text-muted); text-decoration: none; font-size: 0.85rem; }
.footer-links a:hover { color: var(--accent); }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .track-grid, .project-grid, .arch-compare { grid-template-columns: 1fr; }
  .cert-grid, .testimonial-grid { grid-template-columns: 1fr 1fr; }
  .stat-row { grid-template-columns: 1fr 1fr; }
  .case-banner { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .cert-grid, .testimonial-grid { grid-template-columns: 1fr; }
  .ref-card { padding-top: 58px; }
  .nav-links {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: var(--bg-soft); border-bottom: 1px solid var(--border);
    flex-direction: column; padding: 18px 24px; gap: 16px; align-items: flex-start;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
}