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

:root {
  --bg: #0d0d0d;
  --bg-alt: #111111;
  --surface: #1a1a1a;
  --border: #222222;
  --text: #e8e8e8;
  --text-muted: #888888;
  --accent: #c8a96e;
  --accent-dim: rgba(200, 169, 110, 0.12);
  --font: 'Georgia', serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --transition: 0.3s var(--ease);
  --transition-slow: 0.55s var(--ease);
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 18px;
  line-height: 1.7;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity var(--transition-slow) var(--ease) var(--reveal-delay, 0s),
    transform var(--transition-slow) var(--ease) var(--reveal-delay, 0s);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Nav */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(13, 13, 13, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

header.scrolled {
  background: rgba(13, 13, 13, 0.98);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font);
  font-size: 1.1rem;
  color: var(--accent);
  letter-spacing: 0.03em;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color var(--transition);
}

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

.nav-contact {
  color: var(--accent) !important;
  border: 1px solid var(--accent);
  padding: 0.3rem 0.9rem;
  transition: background var(--transition), color var(--transition) !important;
}

.nav-contact:hover {
  background: var(--accent);
  color: var(--bg) !important;
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
  z-index: 200;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-muted);
  transition: transform var(--transition), opacity var(--transition), background var(--transition);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  background: var(--accent);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  background: var(--accent);
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 2rem 4rem;
  background: radial-gradient(ellipse at center top, #1a1500 0%, var(--bg) 60%);
}

.hero-content { max-width: 700px; }

.hero-content > * {
  animation: fadeInUp 0.7s var(--ease) forwards;
  opacity: 0;
}

.hero-content h1 { animation-delay: 0.1s; }
.hero-content .tagline { animation-delay: 0.25s; }
.hero-content .cta { animation-delay: 0.4s; }

.hero h1 {
  font-family: var(--font);
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: normal;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 1.25rem;
  line-height: 1.1;
}

.tagline {
  font-size: clamp(0.95rem, 2.5vw, 1.1rem);
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 2.5rem;
}

.cta {
  display: inline-block;
  padding: 0.75rem 2rem;
  border: 1px solid var(--accent);
  color: var(--accent);
  text-decoration: none;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.cta:hover {
  background: var(--accent);
  color: var(--bg);
  transform: translateY(-2px);
}

/* Sections */
.section { padding: 6rem 2rem; }
.section-alt { background: var(--bg-alt); }
.container { max-width: 1100px; margin: 0 auto; }

h2 {
  font-family: var(--font);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: normal;
  color: var(--text);
  margin-bottom: 3rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.section-intro {
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 3rem;
  font-size: 1.05rem;
}

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

.about-text p {
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
}

.about-text p:last-child { margin-bottom: 0; }

.about-stats {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.stat {
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
}

.stat:hover {
  transform: translateX(4px);
  border-color: var(--accent);
  background: var(--accent-dim);
}

.stat-number {
  display: block;
  font-family: var(--font);
  font-size: 1.4rem;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* Timeline */
.timeline { display: flex; flex-direction: column; gap: 0; }

.timeline-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 2rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
  transition: padding-left var(--transition), border-color var(--transition);
}

.timeline-item:hover {
  padding-left: 0.5rem;
  border-color: rgba(200, 169, 110, 0.3);
}

.timeline-item:first-child { border-top: 1px solid var(--border); }

.timeline-meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: 0.2rem;
}

.timeline-date {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.timeline-tag {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 0.1rem 0.5rem;
  width: fit-content;
}

.timeline-body h3 {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.company {
  font-size: 0.9rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.timeline-body p:not(.company) {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Clients Grid */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.client-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.75rem;
  transition: border-color var(--transition), transform var(--transition), background var(--transition);
}

.client-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  background: var(--accent-dim);
}

.client-card h3 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.client-sector {
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.client-card p:not(.client-sector):not(.client-result) {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.client-result {
  font-size: 0.8rem;
  color: var(--accent);
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
  font-style: italic;
}

/* Contact */
.contact-container { text-align: center; }

.contact-container h2 {
  border-bottom: none;
  margin-bottom: 1rem;
}

.contact-container .section-intro { margin: 0 auto 2rem; }

.email-link {
  display: inline-block;
  font-family: var(--font);
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 0.25rem;
  transition: opacity var(--transition);
}

.email-link:hover { opacity: 0.7; }

/* Footer */
footer {
  padding: 2.5rem 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

footer p { font-size: 0.85rem; color: var(--text-muted); }

footer a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-content > *, .reveal {
    animation: none;
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Responsive */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav-menu {
    position: fixed;
    top: 60px;
    left: 0; right: 0;
    background: rgba(13, 13, 13, 0.98);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: center;
    gap: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow), padding var(--transition);
  }

  .nav-menu.open {
    max-height: 400px;
    padding: 1.5rem 0;
  }

  .nav-menu li { width: 100%; text-align: center; }

  .nav-menu a {
    display: block;
    padding: 0.9rem 2rem;
    font-size: 0.9rem;
  }

  .nav-contact { margin: 0.5rem auto 0; width: fit-content; }

  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .timeline-item { grid-template-columns: 1fr; gap: 0.5rem; }
  .clients-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .clients-grid { grid-template-columns: 1fr; }
}