/* ============================================================
   OraPerfect — Oracle Consulting Website
   style.css — All styles, mobile-first, no dependencies
   ============================================================ */

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
  --navy-900: #0a0f1e;
  --navy-800: #0f172a;
  --navy-700: #1e293b;
  --navy-600: #334155;
  --amber: #f59e0b;
  --amber-light: #fcd34d;
  --amber-dim: #92400e;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #475569;
  --border: rgba(255, 255, 255, 0.08);

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --font-mono: 'DM Mono', 'Courier New', monospace;

  --max-width: 1200px;
  --section-pad: 5rem 1.5rem;
}

/* ── Skip link ─────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background-color: var(--amber);
  color: var(--navy-900);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  border-radius: 0 0 4px 4px;
  z-index: 999;
  transition: top 0.2s ease;
}

.skip-link:focus { top: 0; }

/* ── Entrance animations ───────────────────────────────────── */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate {
  opacity: 0;
}

.animate.visible {
  animation-name: fadeUp;
  animation-duration: 0.5s;
  animation-timing-function: ease;
  animation-fill-mode: forwards;
}

.animate:nth-child(2) { animation-delay: 0.08s; }
.animate:nth-child(3) { animation-delay: 0.16s; }
.animate:nth-child(4) { animation-delay: 0.24s; }
.animate:nth-child(5) { animation-delay: 0.32s; }
.animate:nth-child(6) { animation-delay: 0.40s; }

/* Respect user preference for reduced motion */
@media (prefers-reduced-motion: reduce) {
  .animate { opacity: 1; }
  .animate.visible { animation: none; }
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--navy-900);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* ── Typography ────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }

p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.75;
}

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

section {
  padding: var(--section-pad);
  scroll-margin-top: 72px;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--amber);
  display: block;
  margin-bottom: 0.75rem;
}

.section-heading {
  margin-bottom: 1rem;
}

.section-subhead {
  color: var(--text-secondary);
  max-width: 52ch;
  margin-bottom: 3rem;
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  border: 2px solid transparent;
  line-height: 1;
}

.btn-primary {
  background-color: var(--amber);
  color: var(--navy-900);
  border-color: var(--amber);
}

.btn-primary:hover {
  background-color: var(--amber-light);
  border-color: var(--amber-light);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border);
}

.btn-outline:hover {
  border-color: var(--amber);
  color: var(--amber);
}

/* ── Navigation ────────────────────────────────────────────── */
#nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--navy-900);
  border-bottom: 1px solid var(--border);
  transition: background-color 0.3s ease;
}

#nav.scrolled {
  background-color: rgba(10, 15, 30, 0.97);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-brand {
  display: flex;
  flex-direction: column;
  gap: 0;
  line-height: 1;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.nav-tagline {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: var(--amber);
  margin-top: 2px;
}

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

.nav-links {
  display: none;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

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

.nav-cta {
  display: none;
}

.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu drawer */
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0;
  background-color: var(--navy-800);
  border-top: 1px solid var(--border);
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  padding: 1rem 1.5rem;
  font-size: 1rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  transition: color 0.2s ease, background-color 0.2s ease;
}

.mobile-menu a:hover {
  color: var(--amber);
  background-color: var(--navy-700);
}

.mobile-menu .btn {
  margin: 1rem 1.5rem;
  text-align: center;
}

/* ── Hero ──────────────────────────────────────────────────── */
#hero {
  padding: 5rem 1.5rem 4rem;
  border-bottom: 1px solid var(--border);
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background-color: var(--amber);
}

.hero-headline {
  margin-bottom: 1.25rem;
  max-width: 18ch;
}

.hero-headline em {
  font-style: italic;
  color: var(--amber);
}

.hero-subhead {
  max-width: 52ch;
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

/* Stats grid */
.hero-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background-color: var(--border);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 2.5rem;
}

.stat-card {
  background-color: var(--navy-800);
  padding: 1.5rem;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--amber);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* Tech badges */
.tech-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  padding: 0.3rem 0.65rem;
  border-radius: 3px;
  background-color: var(--navy-700);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

/* ── Services ──────────────────────────────────────────────── */
#services {
  background-color: var(--navy-800);
  border-bottom: 1px solid var(--border);
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

/* 5th card spans full width on 2-col layout */
@media (min-width: 640px) {
  .service-card:last-child:nth-child(odd) {
    grid-column: 1 / -1;
    max-width: calc(50% - 0.75rem);
  }
}

.service-card {
  background-color: var(--navy-900);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2rem;
  transition: border-color 0.25s ease;
}

.service-card:hover {
  border-color: rgba(245, 158, 11, 0.3);
}

.service-card.highlight {
  border-color: rgba(245, 158, 11, 0.4);
  position: relative;
}

.service-card.highlight::before {
  content: 'Most In Demand';
  position: absolute;
  top: -1px;
  right: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background-color: var(--amber);
  color: var(--navy-900);
  padding: 0.25rem 0.6rem;
  border-radius: 0 0 4px 4px;
  font-weight: 700;
}

.service-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--amber);
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.service-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.service-card.highlight .service-title {
  color: var(--amber-light);
}

.service-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.service-list li {
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding-left: 1rem;
  position: relative;
}

.service-list li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--amber);
}

/* ── Experience ────────────────────────────────────────────── */
#experience {
  border-bottom: 1px solid var(--border);
}

.timeline {
  position: relative;
  padding-left: 1.5rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background-color: var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: 2.5rem;
  padding-left: 1.5rem;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -1.5rem;
  top: 8px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--amber);
  border: 2px solid var(--navy-900);
  outline: 1px solid var(--amber);
}

.timeline-period {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--amber);
  margin-bottom: 0.3rem;
}

.timeline-role {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: 0.15rem;
}

.timeline-company {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.timeline-note {
  font-size: 0.825rem;
  color: var(--text-muted);
  font-style: italic;
}

.timeline-note strong {
  color: var(--amber-light);
  font-style: normal;
}

/* ── Results ───────────────────────────────────────────────── */
#results {
  background-color: var(--navy-800);
  border-bottom: 1px solid var(--border);
}

.results-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.result-card {
  background-color: var(--navy-900);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2rem;
}

.result-metric {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--amber);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.result-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.result-detail {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* ── About ─────────────────────────────────────────────────── */
#about {
  border-bottom: 1px solid var(--border);
}

.about-body {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 60ch;
  line-height: 1.8;
}

.about-body strong {
  color: var(--amber-light);
}

/* ── Contact ───────────────────────────────────────────────── */
#contact {
  border-bottom: 1px solid var(--border);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

.contact-info-block {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-info-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.contact-info-value {
  font-size: 1rem;
  color: var(--text-primary);
}

.contact-info-value a:hover {
  color: var(--amber);
}

/* Contact form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.form-group input,
.form-group select,
.form-group textarea {
  background-color: var(--navy-700);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.7rem 0.9rem;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color 0.2s ease;
  outline: none;
  width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--amber);
  outline: 2px solid var(--amber);
  outline-offset: -2px;
}

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

.form-group textarea {
  resize: vertical;
  min-height: 130px;
}

.form-group select option {
  background-color: var(--navy-700);
}

.form-submit {
  align-self: flex-start;
}

.form-feedback {
  font-size: 0.875rem;
  padding: 0.6rem 0;
  min-height: 1.5rem;
}

.form-feedback.success { color: #4ade80; }
.form-feedback.error   { color: #f87171; }

/* ── Footer ────────────────────────────────────────────────── */
#footer {
  background-color: var(--navy-800);
  padding: 2.5rem 1.5rem;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

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

.footer-tagline {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: var(--amber);
  margin-top: 3px;
}

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

.footer-cert {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 0.3rem 0.75rem;
  border-radius: 3px;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── Responsive: tablet (640px+) ──────────────────────────── */
@media (min-width: 640px) {
  .form-row {
    grid-template-columns: 1fr 1fr;
  }

  .hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .services-grid {
    grid-template-columns: 1fr 1fr;
  }

  .results-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ── Responsive: desktop (900px+) ─────────────────────────── */
@media (min-width: 900px) {
  .nav-links {
    display: flex;
  }

  .nav-cta {
    display: inline-block;
  }

  .hamburger {
    display: none;
  }

  #hero {
    padding: 7rem 1.5rem 5rem;
  }

  .hero-headline {
    max-width: 22ch;
  }

  .contact-grid {
    grid-template-columns: 1fr 1.6fr;
    gap: 4rem;
  }

  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* ── Print stylesheet ──────────────────────────────────────── */
@media print {
  #nav, .hero-ctas, .contact-form, #about, #footer { display: none; }

  body {
    background: #fff;
    color: #000;
    font-size: 12pt;
  }

  h1, h2, h3, h4 { color: #000; }

  p, .timeline-note, .service-list li, .result-detail {
    color: #333;
  }

  .section-label, .timeline-period, .service-num,
  .hero-eyebrow, .stat-number, .result-metric {
    color: #b45309;
  }

  .hero-stats, .service-card, .result-card {
    border: 1px solid #ccc;
    background: #fff;
  }

  section { padding: 1.5rem 0; }

  a { color: #000; text-decoration: none; }

  .contact-info-value a::after {
    content: ' (' attr(href) ')';
    font-size: 0.8em;
    color: #555;
  }
}

/* ── Responsive: wide (1200px+) ───────────────────────────── */
@media (min-width: 1200px) {
  :root {
    --section-pad: 6rem 1.5rem;
  }
}