/* ============================================================
   XXI Century Consulting — Light Theme
   Palette: Navy #1B2E5A | Royal Blue #2B6EB5 | Gold #C8952E
   Typography: Cormorant Garamond (serif) + Montserrat (sans)
   ============================================================ */

:root {
  --navy:          #1B2E5A;
  --navy-mid:      #243D73;
  --blue:          #2B6EB5;
  --blue-light:    #3A8FD6;
  --gold:          #C8952E;
  --gold-light:    #D4AF37;
  --gold-pale:     #F5EDD6;
  --text-dark:     #1A1F2E;
  --text-mid:      #4A5568;
  --text-light:    #8A96A8;
  --bg:            #FFFFFF;
  --bg-off:        #F7F9FC;
  --bg-soft:       #EEF3FA;
  --border:        #DDE4EF;
  --shadow:        0 4px 24px rgba(27, 46, 90, 0.08);
  --shadow-md:     0 8px 40px rgba(27, 46, 90, 0.12);
  --shadow-lg:     0 20px 60px rgba(27, 46, 90, 0.16);
  --radius:        12px;
  --radius-lg:     20px;
  --serif:         'Cormorant Garamond', Georgia, serif;
  --sans:          'Montserrat', sans-serif;
}

/* RESET */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  font-family: var(--sans);
  font-size: 17px;
  color: var(--text-dark);
  background: var(--bg);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
a:focus-visible,
button:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 4px;
}

/* CONTAINER */
.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px;
}

/* SECTION BASE */
.section { padding: 100px 0; }
.section-header { text-align: center; max-width: 680px; margin: 0 auto 64px; }
.section-tag {
  display: inline-block;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--gold);
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 20px;
}
.section-title {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 600;
  color: var(--navy);
  line-height: 1.15;
  margin-bottom: 16px;
}
.section-title em {
  font-style: italic;
  color: var(--blue);
}
.section-sub {
  font-size: 17px;
  color: var(--text-mid);
  line-height: 1.75;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 14px 28px;
  border-radius: 4px;
  cursor: pointer;
  border: none;
  transition: all 0.25s ease;
}
.btn-primary {
  background: var(--navy);
  color: #fff;
  box-shadow: 0 4px 16px rgba(27, 46, 90, 0.3);
}
.btn-primary:hover {
  background: var(--navy-mid);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(27, 46, 90, 0.4);
}
.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--navy);
}
.btn-outline:hover {
  background: var(--navy);
  color: #fff;
  transform: translateY(-2px);
}
.btn-nav {
  background: var(--gold);
  color: #fff;
  font-size: 12px;
  padding: 11px 22px;
  box-shadow: 0 2px 12px rgba(200, 149, 46, 0.35);
}
.btn-nav:hover {
  background: var(--gold-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(200, 149, 46, 0.45);
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s;
}
.navbar.scrolled { box-shadow: var(--shadow-md); }
.nav-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px;
  height: 72px;
  display: flex;
  align-items: center;
  gap: 40px;
}
.nav-logo { flex-shrink: 0; }
.logo-img {
  height: 56px;
  width: auto;
  object-fit: contain;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  margin-left: auto;
}
.nav-links a {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-dark);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--blue); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: all 0.3s;
}
.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--border);
  background: #fff;
  padding: 16px 32px 24px;
}
.nav-mobile a {
  padding: 12px 0;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dark);
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}
.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile a:hover { color: var(--blue); }
.nav-mobile .btn-nav { margin-top: 16px; text-align: center; justify-content: center; }
.nav-mobile.open { display: flex; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  padding: 160px 0 100px;
  background: var(--bg);
  overflow: hidden;
}
.hero-bg-pattern {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 80% 20%, rgba(43,110,181,0.06) 0%, transparent 60%),
    radial-gradient(circle at 10% 80%, rgba(200,149,46,0.05) 0%, transparent 50%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
}
.hero-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-mid);
  margin-bottom: 24px;
  padding: 6px 0;
  border-left: 3px solid var(--gold);
  padding-left: 12px;
}
.hero-title {
  font-family: var(--serif);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.05;
  margin-bottom: 28px;
  letter-spacing: -0.01em;
}
.gold-text { color: var(--gold); }
.hero-sub {
  font-size: 18px;
  color: var(--text-mid);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 580px;
}
.hero-ctas {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.stat { text-align: left; }
.stat-num {
  display: block;
  font-family: var(--serif);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
}
.stat-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-light);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: 6px;
}
.stat-divider {
  width: 1px;
  height: 44px;
  background: var(--border);
  flex-shrink: 0;
}
/* Decorative diamond */
.hero-diamond {
  position: absolute;
  right: -80px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  z-index: 0;
}
.diamond-shape {
  width: 520px;
  height: 520px;
  background: linear-gradient(135deg, rgba(43,110,181,0.07) 0%, rgba(27,46,90,0.04) 50%, rgba(200,149,46,0.06) 100%);
  border: 1px solid rgba(43,110,181,0.12);
  transform: rotate(45deg);
  border-radius: 8px;
  animation: diamondFloat 8s ease-in-out infinite;
}
@keyframes diamondFloat {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50%       { transform: rotate(45deg) translateY(-16px); }
}

/* ============================================================
   SERVICES
   ============================================================ */
.services { background: var(--bg-off); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--blue-light));
  opacity: 0;
  transition: opacity 0.3s;
}
.service-card:hover {
  border-color: rgba(43, 110, 181, 0.3);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.service-card:hover::before { opacity: 1; }
.service-card--featured {
  grid-column: span 2;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
  color: #fff;
  border-color: transparent;
  padding: 44px 40px;
}
.service-card--featured::before {
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  opacity: 1;
  height: 4px;
}
.service-card--featured h3 { color: #fff !important; font-size: 1.65rem; }
.service-card--featured p { color: rgba(255,255,255,0.82) !important; font-size: 15.5px; }
.service-card--featured .service-tag {
  background: rgba(200,149,46,0.25);
  color: #F0D080;
  border-color: rgba(200,149,46,0.4);
}
.service-card--featured .service-icon { color: var(--gold-light); width: 52px; height: 52px; }
.service-card--featured:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(27, 46, 90, 0.4);
}
.service-icon {
  width: 48px;
  height: 48px;
  color: var(--blue);
  margin-bottom: 20px;
}
.service-icon svg { width: 100%; height: 100%; }
.service-card h3 {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 12px;
  line-height: 1.2;
}
.service-card p {
  font-size: 15px;
  color: var(--text-mid);
  line-height: 1.75;
  margin-bottom: 20px;
}
.service-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--bg-soft);
  color: var(--blue);
  border: 1px solid var(--border);
  padding: 4px 12px;
  border-radius: 100px;
}

/* ============================================================
   WHY US
   ============================================================ */
.why { background: var(--bg); }
.why-inner {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 80px;
  align-items: start;
}
.why-left { position: sticky; top: 100px; }
.why-left .section-tag { margin-bottom: 16px; }
.why-left .section-title { margin-bottom: 20px; }
.why-intro {
  font-size: 15px;
  color: var(--text-mid);
  line-height: 1.75;
  margin-bottom: 32px;
}
.why-right {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.advantage-item {
  display: flex;
  gap: 28px;
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s;
}
.advantage-item:first-child { border-top: 1px solid var(--border); }
.adv-num {
  font-family: var(--serif);
  font-size: 2.5rem;
  font-weight: 700;
  color: rgba(43,110,181,0.18);
  line-height: 1;
  flex-shrink: 0;
  width: 52px;
  transition: color 0.3s;
}
.advantage-item:hover .adv-num { color: var(--gold); }
.adv-content h4 {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 10px;
}
.adv-content p {
  font-size: 15px;
  color: var(--text-mid);
  line-height: 1.75;
}

/* ============================================================
   PROCESS
   ============================================================ */
.process { background: var(--bg-off); }
.process-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 800px;
  margin: 0 auto;
}
.process-step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 32px;
  padding: 48px 0;
  position: relative;
  border-bottom: 1px solid var(--border);
  align-items: start;
}
.process-step:last-child { border-bottom: none; }
.step-line {
  position: absolute;
  left: 39px;
  top: 80px;
  bottom: -1px;
  width: 2px;
  background: linear-gradient(to bottom, var(--blue-light), transparent);
}
.process-step:last-child .step-line { display: none; }
.step-num {
  font-family: var(--serif);
  font-size: 3rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
  position: relative;
  z-index: 1;
}
.step-content h3 {
  font-family: var(--serif);
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 14px;
  margin-top: 8px;
}
.step-content p {
  font-size: 16px;
  color: var(--text-mid);
  line-height: 1.8;
}

/* ============================================================
   PARTNERS
   ============================================================ */
.partners { background: var(--bg); padding: 72px 0; }
.partners-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}
.partners-inner .section-tag { margin: 0; }
.partner-logo-link {
  display: inline-block;
  opacity: 0.92;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.partner-logo-link:hover { opacity: 1; transform: translateY(-2px); }
.partner-logo { height: 92px; width: auto; object-fit: contain; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact { background: var(--navy); }
.contact-inner {
  position: relative;
  text-align: center;
  padding: 80px 40px;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.contact-diamond-bg {
  position: absolute;
  inset: -100px;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(43,110,181,0.3) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 50%, rgba(200,149,46,0.15) 0%, transparent 60%);
  pointer-events: none;
}
.contact-content { position: relative; z-index: 1; }
.section-tag--light {
  color: var(--gold-light);
  border-color: rgba(212,175,55,0.4);
}
.contact-title {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.1;
  margin-bottom: 20px;
}
.contact-title em {
  font-style: italic;
  color: var(--gold-light);
}
.contact-sub {
  font-size: 16px;
  color: rgba(255,255,255,0.65);
  max-width: 520px;
  margin: 0 auto 48px;
  line-height: 1.75;
}
.contact-cta-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-gold {
  background: var(--gold);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  padding: 16px 36px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  letter-spacing: 0.04em;
  box-shadow: 0 4px 20px rgba(200,149,46,0.45);
  transition: all 0.25s ease;
}
.btn-gold:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(200,149,46,0.55);
}
.btn-outline-white {
  background: transparent;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  padding: 15px 32px;
  border-radius: 4px;
  border: 1.5px solid rgba(255,255,255,0.4);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  letter-spacing: 0.04em;
  transition: all 0.25s ease;
}
.btn-outline-white:hover {
  border-color: rgba(255,255,255,0.85);
  background: rgba(255,255,255,0.08);
  transform: translateY(-2px);
}

/* Contact form */
.contact-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  max-width: 560px;
  margin: 40px auto 28px;
  color: rgba(255,255,255,0.4);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.contact-divider::before,
.contact-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(255,255,255,0.15);
}
.contact-form {
  max-width: 560px;
  margin: 0 auto;
  text-align: left;
}
.hidden-field { display: none; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  font-family: var(--sans);
  font-size: 15px;
  color: #fff;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 6px;
  padding: 14px 16px;
  transition: border-color 0.2s, background 0.2s;
}
.contact-form textarea {
  resize: vertical;
  margin-bottom: 20px;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: rgba(255,255,255,0.4); }
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--gold);
  background: rgba(255,255,255,0.1);
}
.form-submit { margin: 0 auto; }
.form-status {
  margin-top: 16px;
  font-size: 14px;
  min-height: 20px;
  text-align: center;
}
.form-status.success { color: var(--gold-light); }
.form-status.error { color: #F0A0A0; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: #111828;
  padding: 48px 0 32px;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 20px;
}
.logo-img--footer {
  height: 52px;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}
.footer-wordmark {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: rgba(255,255,255,0.9);
  letter-spacing: 0.02em;
  margin-bottom: 4px;
}
.footer-wordmark span { color: var(--gold-light); }
.footer-mission {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
  max-width: 440px;
  line-height: 1.6;
  font-style: italic;
}
.footer-links {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  justify-content: center;
}
.footer-links a {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--gold-light); }
.footer-copy {
  font-size: 11px;
  color: rgba(255,255,255,0.25);
  margin-top: 8px;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 20px;
  width: 100%;
  text-align: center;
}

/* ============================================================
   SCROLL ANIMATIONS
   ============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: none;
}
/* Hero elements always visible immediately */
.hero .fade-up {
  opacity: 1 !important;
  transform: none !important;
  transition: none !important;
}

/* Respect users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .fade-up { opacity: 1; transform: none; }
  .diamond-shape { animation: none; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
  .service-card--featured { grid-column: span 2; }
  .why-inner { grid-template-columns: 1fr; gap: 48px; }
  .why-left { position: static; }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .section { padding: 72px 0; }
  .nav-links { display: none; }
  .nav-inner .btn-nav { display: none; }
  .nav-toggle { display: flex; }
  .hero { padding: 120px 0 72px; }
  .hero-diamond { display: none; }
  .hero-title { font-size: clamp(2.5rem, 10vw, 4rem); }
  .hero-ctas { gap: 12px; }
  .hero-stats { gap: 20px; }
  .services-grid { grid-template-columns: 1fr; }
  .service-card--featured { grid-column: span 1; }
  .process-step { grid-template-columns: 56px 1fr; gap: 20px; }
  .step-line { left: 27px; }
  .form-row { grid-template-columns: 1fr; }
  .partner-logo { height: 76px; }
}

@media (max-width: 480px) {
  .hero-ctas { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .stat-divider { display: none; }
  .hero-stats { flex-direction: column; gap: 16px; align-items: center; text-align: center; }
  .stat { text-align: center; }
}