/* ═══════════════════════════════════════════════
   FMCAI – Full Metal Consultants AI
   Dark theme · Signal Teal accent · Bricolage + Inter + JetBrains Mono
   Brand Identity Guide v1.0 (2026)
   ═══════════════════════════════════════════════ */

/* ─── Reset & Base ─── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

:root {
  /* ─── Brand colour tokens ─── */
  --bg-primary:   #0C1E18;                  /* Deep Forest — page background      */
  --bg-secondary: #0E2620;                  /* Half-step lift for alternating bands */
  --bg-card:      #152920;                  /* Slate — primary card surface       */
  --bg-elevated:  #1a3128;                  /* Slate +1 — hover-state lift        */
  --text-primary:   rgba(255, 255, 255, 0.88);
  --text-secondary: rgba(255, 255, 255, 0.52);
  --text-muted:     rgba(255, 255, 255, 0.26);
  --accent:       #00CC9B;                  /* Signal Teal — single accent        */
  --accent-hover: #33D6AF;                  /* Signal Teal +lightness on hover    */
  --accent-dim:   rgba(0, 204, 155, 0.15);
  --accent-glow:  rgba(0, 204, 155, 0.08);
  --border:       rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.10);

  /* ─── Radii ─── */
  --radius-sm:   6px;   /* buttons, inputs, tags          */
  --radius-md:   10px;  /* swatches, small inset blocks   */
  --radius-lg:   12px;  /* primary cards                  */
  --radius-pill: 999px;

  /* ─── Type ─── */
  --font-display: 'Bricolage Grotesque', 'Inter', sans-serif;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', 'IBM Plex Mono', 'Courier New', monospace;

  /* ─── Layout & Motion ─── */
  --max-width: 1140px;
  --header-h:  4rem;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ─── Utilities ─── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-pad {
  padding: 6rem 0;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: 3rem;
}

.text-accent {
  color: var(--accent);
}

/* ─── Links & Buttons ─── */
a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover { color: var(--accent); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.8rem 2rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-primary);
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--bg-primary);
  box-shadow: 0 0 30px var(--accent-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-light);
}
.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ─── Reveal animation ─── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ═══════════════ HEADER ═══════════════ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  z-index: 100;
  background: rgba(12, 30, 24, 0.85);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.logo-icon { flex-shrink: 0; }

.logo-wordmark {
  display: flex;
  flex-direction: column;
  gap: 0.08rem;
}

.logo-fmc {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  line-height: 1;
}

.logo-sub {
  font-family: var(--font-display);
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  line-height: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.25rem 0;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--accent);
  transition: width var(--transition);
}
.nav-links a:hover::after { width: 100%; }
.nav-links a:hover { color: var(--text-primary); }

.nav-cta {
  background: var(--accent-dim);
  color: var(--accent) !important;
  padding: 0.5rem 1.25rem !important;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: all var(--transition) !important;
}
.nav-cta:hover {
  background: var(--accent) !important;
  color: var(--bg-primary) !important;
  border-color: var(--accent) !important;
}
.nav-cta::after { display: none !important; }

/* ─── Mobile nav toggle ─── */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ═══════════════ HERO ═══════════════ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: var(--header-h);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-suptitle {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 800;
  line-height: 1.05;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.hero-desc {
  font-family: var(--font-body);
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 480px;
  margin-bottom: 2.5rem;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  gap: 1rem;
}

/* ─── Hero graphic ─── */
.hero-visual { display: flex; justify-content: center; }
.hero-graphic {
  width: 100%;
  max-width: 380px;
}

.pulse-ring {
  animation: pulseGlow 4s ease-in-out infinite;
}

@keyframes pulseGlow {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

.orbit-a { animation: driftA 6s ease-in-out infinite; }
.orbit-b { animation: driftB 6s ease-in-out infinite; }

@keyframes driftA {
  0%, 100% { transform: translate(0, 0); opacity: 0.6; }
  50% { transform: translate(4px, -4px); opacity: 1; }
}
@keyframes driftB {
  0%, 100% { transform: translate(0, 0); opacity: 0.6; }
  50% { transform: translate(-4px, 4px); opacity: 1; }
}

/* ─── Scroll hint ─── */
.hero-scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
}

.scroll-dot {
  animation: scrollDot 2s ease-in-out infinite;
}

@keyframes scrollDot {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(8px); opacity: 0.3; }
}

/* ═══════════════ SERVICES ═══════════════ */
.services {
  background: var(--bg-secondary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  transition: all var(--transition);
}

.service-card:hover {
  border-color: var(--accent-dim);
  background: var(--bg-elevated);
  transform: translateY(-4px);
  box-shadow: 0 18px 36px -20px rgba(0, 0, 0, 0.55);
}

.service-icon {
  margin-bottom: 1.5rem;
  width: 48px;
  height: 48px;
}

.service-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.service-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  line-height: 1.65;
}

.service-lis {
  list-style: none;
}

.service-lis li {
  position: relative;
  padding-left: 1.25rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
}

.service-lis li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ═══════════════ PORTFOLIO ═══════════════ */
.portfolio-filters {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}

.filter-btn.active {
  background: var(--accent);
  color: var(--bg-primary);
  border-color: var(--accent);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.portfolio-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  height: 100%;
  transition: all var(--transition);
}

.portfolio-card:hover {
  border-color: var(--accent-dim);
  background: var(--bg-elevated);
  transform: translateY(-2px);
  box-shadow: 0 18px 36px -20px rgba(0, 0, 0, 0.55);
}

.portfolio-meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 0.75rem;
  letter-spacing: 0.08em;
}

.portfolio-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.portfolio-desc {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.65;
  margin-bottom: 1.25rem;
}

.portfolio-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.portfolio-tags span {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  background: var(--accent-dim);
  color: var(--accent);
}

.portfolio-github {
  display: inline-block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
  margin-top: 1rem;
}
.portfolio-github:hover { opacity: 0.75; color: var(--accent); }

/* ═══════════════ SPEAKING ═══════════════ */
.speaking {
  background: var(--bg-secondary);
}

.speaking-list {
  max-width: 720px;
}

.speaking-group-title {
  margin-top: 2rem;
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.speaking-group-title:first-of-type {
  margin-top: 1rem;
}

.speaking-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}

.speaking-item:last-child { border-bottom: none; }

.speaking-date {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  padding-top: 0.2rem;
}

.speaking-info h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.speaking-info p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.speaking-cta {
  margin-top: 3rem;
  padding: 2rem;
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.speaking-cta p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

/* ═══════════════ PHILOSOPHY ═══════════════ */
.phil-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;
  align-items: start;
}

.phil-text p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 1.25rem;
  line-height: 1.7;
}

.phil-quote {
  margin-top: 2rem;
  padding: 1.5rem 2rem;
  border-left: 3px solid var(--accent);
  background: var(--bg-card);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-primary);
  font-style: italic;
  line-height: 1.5;
}

.phil-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.stat-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-align: center;
  transition: all var(--transition);
}

.stat-item:hover {
  border-color: var(--accent-dim);
}

.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 0.25rem;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.3;
}

/* ═══════════════ CONTACT ═══════════════ */
.contact {
  background: var(--bg-secondary);
}

.contact-intro {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 480px;
  margin-bottom: 2.5rem;
}

.contact-form {
  max-width: 640px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.75rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  transition: border-color var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-submit-row {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.form-note {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.form-status {
  margin-top: 1rem;
  font-size: 0.9rem;
}

.form-status.success { color: var(--accent); }
.form-status.error   { color: #D24737; }

/* ═══════════════ FOOTER ═══════════════ */
.site-footer {
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 2rem;
  align-items: start;
  padding-bottom: 2rem;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
}

.footer-tagline {
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 0.25rem;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-align: center;
}

.footer-nav a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

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

.footer-social {
  display: flex;
  gap: 1rem;
  justify-self: end;
}

.footer-social a {
  color: var(--text-muted);
  width: 24px;
  height: 24px;
  transition: color var(--transition);
  display: inline-flex;
}

.footer-social svg { width: 24px; height: 24px; }

.footer-social a:hover { color: var(--accent); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
  letter-spacing: 0.04em;
}

/* ═══════════════ WHY US ═══════════════ */
.why-us-items {
  max-width: 720px;
  margin-bottom: 2rem;
}

.why-us-item {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}

.why-us-item:last-child { border-bottom: none; }

.why-us-item h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.why-us-item p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 680px;
}

.why-us-note {
  max-width: 720px;
  padding: 1.5rem 2rem;
  border-left: 3px solid var(--accent);
  background: var(--bg-card);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.why-us-note p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.portfolio-subtitle {
  font-size: 0.92rem;
  color: var(--text-muted);
  font-style: italic;
  margin-bottom: 0.75rem;
  line-height: 1.5;
}

/* ═══════════════ ABOUT ═══════════════ */
.about-grid {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 4rem;
  align-items: start;
}

.about-photo {
  width: 240px;
  height: 240px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  border: 2px solid var(--border-light);
}

.about-text p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 1.25rem;
  line-height: 1.7;
  max-width: 620px;
}

.about-text .form-note {
  margin-top: 2rem;
}

/* ═══════════════ RESPONSIVE ═══════════════ */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2rem; }
  .hero-visual { display: none; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .phil-grid { grid-template-columns: 1fr; gap: 3rem; }
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-grid { grid-template-columns: 1fr; text-align: center; }
  .footer-social { justify-self: center; }
}

@media (max-width: 768px) {
  .services-grid { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .speaking-item { grid-template-columns: 1fr; gap: 0.25rem; }
  .form-row { grid-template-columns: 1fr; }
  .phil-stats { grid-template-columns: 1fr 1fr; }

  .nav-links {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(12, 30, 24, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    transform: translateY(-120%);
    opacity: 0;
    transition: all var(--transition);
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
  }

  .nav-toggle { display: flex; }

  .section-pad { padding: 4rem 0; }

  .hero-desc { font-size: 1rem; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .phil-stats { grid-template-columns: 1fr; }
  .hero-title { font-size: clamp(2.2rem, 10vw, 3rem); }
}