/* ============================================
   XMPRISE — Landing Page Styles
   Premium Minimalist Design System
   ============================================ */

/* --- Design Tokens --- */
:root {
  /* Colors */
  --navy:       #0b1120;
  --navy-mid:   #111827;
  --charcoal:   #1a2332;
  --slate:      #2a3a4e;
  --muted:      #8899aa;
  --light:      #c8d6e5;
  --off-white:  #f0f2f5;
  --white:      #ffffff;
  --teal:       #2dd4a8;
  --teal-dim:   #1fb892;
  --teal-glow:  rgba(45, 212, 168, 0.12);
  --emerald:    #10b981;

  /* Typography */
  --font-display: 'Outfit', sans-serif;
  --font-body:    'DM Sans', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  /* Spacing */
  --section-pad: clamp(80px, 10vw, 140px);
  --container:   1200px;

  /* Motion */
  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
  --duration:  0.7s;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  background: var(--navy);
  color: var(--light);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { border: none; cursor: pointer; font-family: inherit; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
}

/* --- Scroll-triggered Fade-in --- */
.fade-in {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity var(--duration) var(--ease-out),
              transform var(--duration) var(--ease-out);
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-in.delay-1 { transition-delay: 0.1s; }
.fade-in.delay-2 { transition-delay: 0.2s; }
.fade-in.delay-3 { transition-delay: 0.3s; }
.fade-in.delay-4 { transition-delay: 0.4s; }

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 clamp(20px, 4vw, 48px);
  transition: background 0.4s var(--ease-soft),
              box-shadow 0.4s var(--ease-soft),
              backdrop-filter 0.4s var(--ease-soft);
}
.nav.scrolled {
  background: rgba(11, 17, 32, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.04);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

/* Logo */
.logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--white);
  text-transform: uppercase;
}
.logo span {
  color: var(--teal);
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}
.nav-links a {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.02em;
  transition: color 0.3s var(--ease-soft);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--teal);
  transition: width 0.3s var(--ease-out);
}
.nav-links a:hover {
  color: var(--white);
}
.nav-links a:hover::after {
  width: 100%;
}

/* Nav CTA */
.nav-cta {
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 10px 24px;
  border-radius: 6px;
  background: var(--teal);
  color: var(--navy);
  letter-spacing: 0.01em;
  transition: background 0.3s var(--ease-soft),
              transform 0.2s var(--ease-soft);
}
.nav-cta:hover {
  background: var(--teal-dim);
  transform: translateY(-1px);
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.3s var(--ease-out), opacity 0.3s;
}
.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  overflow: hidden;
}

/* Subtle grid background */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(45, 212, 168, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 212, 168, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
}

/* Gradient orb */
.hero-glow {
  position: absolute;
  width: 700px;
  height: 700px;
  top: -15%;
  right: -10%;
  background: radial-gradient(circle, rgba(45, 212, 168, 0.06) 0%, transparent 65%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 780px;
}

/* Eyebrow */
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--teal);
  text-transform: uppercase;
  margin-bottom: 28px;
}
.hero-eyebrow::before {
  content: '';
  width: 32px;
  height: 1.5px;
  background: var(--teal);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5.5vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--white);
  letter-spacing: -0.025em;
  margin-bottom: 24px;
}
.hero h1 .accent {
  color: var(--teal);
}

.hero-sub {
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
  color: var(--muted);
  max-width: 600px;
  line-height: 1.75;
  margin-bottom: 44px;
}

/* CTA group */
.cta-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 32px;
  background: var(--teal);
  color: var(--navy);
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: 8px;
  letter-spacing: 0.01em;
  transition: background 0.3s var(--ease-soft),
              transform 0.2s var(--ease-soft),
              box-shadow 0.3s var(--ease-soft);
}
.btn-primary:hover {
  background: var(--teal-dim);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(45, 212, 168, 0.2);
}
.btn-primary svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s var(--ease-out);
}
.btn-primary:hover svg {
  transform: translateX(3px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 32px;
  background: transparent;
  color: var(--white);
  font-weight: 500;
  font-size: 0.9375rem;
  border-radius: 8px;
  border: 1px solid var(--slate);
  letter-spacing: 0.01em;
  transition: border-color 0.3s var(--ease-soft),
              background 0.3s var(--ease-soft),
              transform 0.2s var(--ease-soft);
}
.btn-secondary:hover {
  border-color: var(--teal);
  background: var(--teal-glow);
  transform: translateY(-2px);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.5;
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--teal), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50%      { opacity: 1;   transform: scaleY(1); }
}

/* ============================================
   SECTION HEADERS (shared)
   ============================================ */
.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-label::before {
  content: '';
  width: 24px;
  height: 1.5px;
  background: var(--teal);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 20px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 560px;
  line-height: 1.75;
}

/* ============================================
   COLLECTIVE (About)
   ============================================ */
.collective {
  padding: var(--section-pad) 0;
  position: relative;
}

/* Divider line */
.collective::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(90%, var(--container));
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--slate), transparent);
}

.collective-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
  margin-top: 56px;
}

.collective-text p {
  font-size: 1.05rem;
  color: var(--light);
  line-height: 1.8;
  margin-bottom: 16px;
}
.collective-text p:last-child {
  margin-bottom: 0;
}

/* Stats */
.collective-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.stat-card {
  background: var(--navy-mid);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: 12px;
  padding: 28px 24px;
  transition: border-color 0.4s var(--ease-soft),
              transform 0.3s var(--ease-soft);
}
.stat-card:hover {
  border-color: rgba(45, 212, 168, 0.15);
  transform: translateY(-2px);
}
.stat-number {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--teal);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.5;
}

/* ============================================
   SERVICES
   ============================================ */
.services {
  padding: var(--section-pad) 0;
  background: var(--navy-mid);
  position: relative;
}
.services::before,
.services::after {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: min(90%, var(--container));
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--slate), transparent);
}
.services::before { top: 0; }
.services::after  { bottom: 0; }

.services-header {
  text-align: center;
  margin-bottom: 56px;
}
.services-header .section-label {
  justify-content: center;
}
.services-header .section-label::before { display: none; }
.services-header .section-desc {
  margin: 0 auto;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

/* Service Card */
.service-card {
  background: var(--navy);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: 14px;
  padding: 36px 32px;
  cursor: pointer;
  transition: border-color 0.4s var(--ease-soft),
              transform 0.3s var(--ease-soft),
              box-shadow 0.4s var(--ease-soft);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--teal), var(--emerald));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease-out);
}
.service-card:hover,
.service-card.active {
  border-color: rgba(45, 212, 168, 0.12);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.25);
}
.service-card:hover::before,
.service-card.active::before {
  transform: scaleX(1);
}

.service-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--teal-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--teal);
}
.service-icon svg {
  width: 22px;
  height: 22px;
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.service-toggle {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--slate);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.3s, transform 0.4s var(--ease-out);
  flex-shrink: 0;
}
.service-card.active .service-toggle {
  border-color: var(--teal);
  transform: rotate(45deg);
}
.service-toggle svg {
  width: 12px;
  height: 12px;
  color: var(--muted);
}

.service-brief {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.6;
}

.service-detail {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s var(--ease-out),
              opacity 0.4s var(--ease-soft),
              margin 0.4s var(--ease-soft);
  opacity: 0;
}
.service-card.active .service-detail {
  max-height: 200px;
  opacity: 1;
  margin-top: 16px;
}
.service-detail p {
  font-size: 0.9rem;
  color: var(--light);
  line-height: 1.75;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.04);
}

/* ============================================
   WHY XMPRISE
   ============================================ */
.why {
  padding: var(--section-pad) 0;
  position: relative;
}

.why-header {
  text-align: center;
  margin-bottom: 56px;
}
.why-header .section-label {
  justify-content: center;
}
.why-header .section-label::before { display: none; }
.why-header .section-desc {
  margin: 0 auto;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.why-card {
  text-align: center;
  padding: 36px 24px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.04);
  background: var(--navy-mid);
  transition: border-color 0.4s var(--ease-soft),
              transform 0.3s var(--ease-soft);
}
.why-card:hover {
  border-color: rgba(45, 212, 168, 0.12);
  transform: translateY(-3px);
}

.why-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--teal-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: var(--teal);
}
.why-icon svg {
  width: 24px;
  height: 24px;
}

.why-card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 10px;
}
.why-card p {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.65;
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
  padding: var(--section-pad) 0;
  background: var(--navy-mid);
  position: relative;
}
.contact::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(90%, var(--container));
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--slate), transparent);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-info h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 24px;
  margin-top: 36px;
}
.contact-info h3:first-child {
  margin-top: 0;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--light);
  transition: color 0.3s;
  margin-bottom: 12px;
}
.contact-link:hover {
  color: var(--teal);
}
.contact-link svg {
  width: 18px;
  height: 18px;
  color: var(--teal);
  flex-shrink: 0;
}

.schedule-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  border: 1px solid var(--slate);
  color: var(--white);
  font-size: 0.875rem;
  font-weight: 500;
  transition: border-color 0.3s, background 0.3s, transform 0.2s;
}
.schedule-btn:hover {
  border-color: var(--teal);
  background: var(--teal-glow);
  transform: translateY(-1px);
}
.schedule-btn svg {
  width: 16px;
  height: 16px;
  color: var(--teal);
}

/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.form-group input,
.form-group textarea {
  background: var(--navy);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 8px;
  padding: 14px 16px;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  transition: border-color 0.3s var(--ease-soft),
              box-shadow 0.3s var(--ease-soft);
  outline: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--slate);
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px var(--teal-glow);
}
.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  align-self: flex-start;
  padding: 14px 36px;
  background: var(--teal);
  color: var(--navy);
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: 8px;
  transition: background 0.3s var(--ease-soft),
              transform 0.2s var(--ease-soft),
              box-shadow 0.3s var(--ease-soft);
}
.form-submit:hover {
  background: var(--teal-dim);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(45, 212, 168, 0.2);
}

.form-note {
  font-size: 0.78rem;
  color: var(--slate);
  margin-top: -4px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: 32px 0;
  border-top: 1px solid rgba(255,255,255,0.04);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-copy {
  font-size: 0.8rem;
  color: var(--slate);
}
.footer-copy a {
  color: var(--muted);
  transition: color 0.3s;
}
.footer-copy a:hover {
  color: var(--teal);
}
.footer-links {
  display: flex;
  gap: 24px;
}
.footer-links a {
  font-size: 0.8rem;
  color: var(--slate);
  transition: color 0.3s;
}
.footer-links a:hover {
  color: var(--teal);
}

/* ============================================
   MOBILE RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .collective-grid {
    gap: 48px;
  }
}

@media (max-width: 768px) {
  /* Nav */
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--navy-mid);
    padding: 100px 32px 40px;
    transition: right 0.4s var(--ease-out);
    border-left: 1px solid rgba(255,255,255,0.04);
    z-index: 999;
  }
  .nav-menu.open { right: 0; }
  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 28px;
  }
  .nav-links a { font-size: 1rem; }
  .nav-links li:last-child { margin-top: 8px; }

  /* Hero */
  .hero { min-height: auto; padding: 120px 0 80px; }
  .scroll-indicator { display: none; }

  /* Collective */
  .collective-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  /* Why */
  .why-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .why-card {
    text-align: left;
    display: grid;
    grid-template-columns: 52px 1fr;
    gap: 16px;
    align-items: start;
    padding: 24px;
  }
  .why-icon { margin: 0; }
  .why-card h3, .why-card p { text-align: left; }
  .why-card-content { grid-column: 2; }

  /* Contact */
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .form-row {
    grid-template-columns: 1fr;
  }

  /* Footer */
  .footer-inner {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .cta-group {
    flex-direction: column;
    width: 100%;
  }
  .btn-primary, .btn-secondary {
    width: 100%;
    justify-content: center;
  }
  .stat-card {
    padding: 20px 18px;
  }
}

/* --- Overlay for mobile menu --- */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s var(--ease-soft);
}
.nav-overlay.active {
  opacity: 1;
  pointer-events: auto;
}