/* ============================================
   Northvane Digital — Design System & Styles
   ============================================ */

:root {
  --navy: #1B3A5C;
  --navy-dark: #132942;
  --blue: #2E86DE;
  --blue-light: #4A9FE8;
  --amber: #F4A623;
  --amber-hover: #E5971A;
  --bg: #F8F9FB;
  --card-bg: #FFFFFF;
  --text: #1A1A2E;
  --muted: #6B7280;
  --border: #E5E7EB;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 30px rgba(27,58,92,0.12);
  --max-w: 1200px;
  --transition: 0.3s ease;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--blue-light); }
ul { list-style: none; }
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
}

/* ---- Typography ---- */
h1, h2, h3, h4 { font-family: 'Plus Jakarta Sans', 'Inter', sans-serif; font-weight: 700; line-height: 1.2; color: var(--navy); }
h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
h3 { font-size: 1.25rem; }
p { color: var(--muted); line-height: 1.7; }

/* ---- Layout ---- */
.nv-wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.nv-section { padding: 96px 0; }
.nv-section--alt { background: var(--bg); }
.nv-section--navy { background: var(--navy); }
.nv-section-header { text-align: center; margin-bottom: 56px; }
.nv-section-header h2 { margin-bottom: 16px; }
.nv-section-header p { max-width: 560px; margin: 0 auto; }
.nv-section--navy .nv-section-header h2 { color: #fff; }
.nv-section--navy .nv-section-header p { color: rgba(255,255,255,0.7); }

/* ---- Buttons ---- */
.nv-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
}
.nv-btn--amber {
  background: var(--amber);
  color: var(--navy);
}
.nv-btn--amber:hover {
  background: var(--amber-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(244,166,35,0.35);
}
.nv-btn--outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.4);
}
.nv-btn--outline:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.08);
}
.nv-btn--blue {
  background: var(--blue);
  color: #fff;
}
.nv-btn--blue:hover {
  background: var(--blue-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(46,134,222,0.35);
}

/* ============================================
   HEADER
   ============================================ */
.nv-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--navy);
  transition: all var(--transition);
}
.nv-header--scrolled {
  background: var(--navy-dark);
  box-shadow: 0 2px 20px rgba(0,0,0,0.15);
}
.nv-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--max-w);
  margin: 0 auto;
}
.nv-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
}
.nv-logo-icon {
  width: 36px;
  height: 36px;
  background: var(--amber);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--navy);
}
.nv-nav { display: flex; align-items: center; gap: 32px; }
.nv-nav a {
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}
.nv-nav a:hover,
.nv-nav a.active {
  color: #fff;
}
.nv-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--amber);
  border-radius: 1px;
}
.nv-header-cta { margin-left: 16px; }
.nv-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nv-nav-toggle span {
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all var(--transition);
}
.nv-nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nv-nav-toggle.open span:nth-child(2) { opacity: 0; }
.nv-nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
.nv-nav-mobile {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  background: var(--navy-dark);
  padding: 24px;
  flex-direction: column;
  gap: 16px;
  z-index: 99;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.nv-nav-mobile.open { display: flex; }
.nv-nav-mobile a {
  color: rgba(255,255,255,0.8);
  font-size: 1rem;
  font-weight: 500;
  padding: 8px 0;
}
.nv-nav-mobile a:hover { color: #fff; }

/* ============================================
   HERO
   ============================================ */
.nv-hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--navy);
  position: relative;
  overflow: hidden;
  padding-top: 68px;
}
.nv-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}
.nv-hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 80px 24px 48px;
  max-width: 800px;
  margin: 0 auto;
}
.nv-hero h1 {
  color: #fff;
  margin-bottom: 24px;
}
.nv-hero h1 span {
  color: var(--amber);
}
.nv-hero-sub {
  color: rgba(255,255,255,0.7);
  font-size: 1.15rem;
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}
.nv-hero-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.nv-hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: auto;
  padding: 32px 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.nv-stat { text-align: center; }
.nv-stat-num {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
}
.nv-stat-label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  margin-top: 4px;
}

/* ============================================
   SERVICES
   ============================================ */
.nv-services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.nv-service-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: all var(--transition);
}
.nv-service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.nv-service-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--blue), var(--navy));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}
.nv-service-card h3 { margin-bottom: 12px; }
.nv-service-card p { font-size: 0.92rem; margin-bottom: 16px; }
.nv-service-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--blue);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.nv-service-link:hover { gap: 8px; }

/* ============================================
   PORTFOLIO
   ============================================ */
.nv-portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.nv-project-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
  group: project;
}
.nv-project-img {
  width: 100%;
  height: 100%;
  transition: transform var(--transition);
}
.nv-project-card:hover .nv-project-img { transform: scale(1.05); }
.nv-project-card:nth-child(1) .nv-project-img { background: linear-gradient(135deg, #1B3A5C, #2E86DE); }
.nv-project-card:nth-child(2) .nv-project-img { background: linear-gradient(135deg, #0F3460, #16C79A); }
.nv-project-card:nth-child(3) .nv-project-img { background: linear-gradient(135deg, #2E3A59, #6C5CE7); }
.nv-project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(19,41,66,0.95) 0%, rgba(19,41,66,0.3) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
  transition: all var(--transition);
}
.nv-project-category {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--amber);
  margin-bottom: 8px;
}
.nv-project-overlay h3 {
  color: #fff;
  font-size: 1.35rem;
  margin-bottom: 8px;
}
.nv-project-overlay p {
  color: rgba(255,255,255,0.7);
  font-size: 0.88rem;
  margin-bottom: 12px;
  opacity: 0;
  transform: translateY(8px);
  transition: all var(--transition);
}
.nv-project-card:hover .nv-project-overlay p {
  opacity: 1;
  transform: translateY(0);
}
.nv-project-metric {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(8px);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #fff;
  width: fit-content;
}

/* ============================================
   ABOUT / TEAM
   ============================================ */
.nv-about-text {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
  font-size: 1.1rem;
  line-height: 1.8;
}
.nv-team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.nv-team-card { text-align: center; }
.nv-team-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto 20px;
  position: relative;
  overflow: hidden;
}
.nv-team-card:nth-child(1) .nv-team-avatar { background: linear-gradient(135deg, #F4A623, #E8725A); }
.nv-team-card:nth-child(2) .nv-team-avatar { background: linear-gradient(135deg, #2E86DE, #1B3A5C); }
.nv-team-card:nth-child(3) .nv-team-avatar { background: linear-gradient(135deg, #6C5CE7, #A29BFE); }
.nv-team-avatar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
}
.nv-team-card h3 { margin-bottom: 4px; font-size: 1.15rem; }
.nv-team-card p { font-size: 0.9rem; }

/* ============================================
   TESTIMONIALS
   ============================================ */
.nv-testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.nv-testimonial-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 32px;
}
.nv-testimonial-quote {
  font-size: 2rem;
  color: var(--amber);
  margin-bottom: 12px;
  line-height: 1;
}
.nv-testimonial-card p {
  color: rgba(255,255,255,0.85);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 24px;
  font-style: italic;
}
.nv-testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nv-testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--navy));
}
.nv-testimonial-name {
  font-weight: 600;
  color: #fff;
  font-size: 0.9rem;
}
.nv-testimonial-role {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
}

/* ============================================
   CONTACT
   ============================================ */
.nv-contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: start;
}
.nv-form-group {
  margin-bottom: 20px;
}
.nv-form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 6px;
}
.nv-form-input,
.nv-form-select,
.nv-form-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card-bg);
  color: var(--text);
  transition: border-color var(--transition);
}
.nv-form-input:focus,
.nv-form-select:focus,
.nv-form-textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(46,134,222,0.1);
}
.nv-form-textarea { min-height: 120px; resize: vertical; }
.nv-form-select { appearance: none; cursor: pointer; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236B7280' fill='none' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; padding-right: 40px; }
.nv-form-success {
  display: none;
  background: #D1FAE5;
  color: #065F46;
  padding: 16px;
  border-radius: 8px;
  font-weight: 500;
  margin-top: 16px;
}
.nv-form-success.show { display: block; }
.nv-contact-info { padding-top: 8px; }
.nv-contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
}
.nv-contact-icon {
  width: 44px;
  height: 44px;
  background: var(--bg);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.nv-contact-item h4 {
  font-size: 0.9rem;
  margin-bottom: 2px;
}
.nv-contact-item p { font-size: 0.9rem; }

/* ============================================
   FOOTER
   ============================================ */
.nv-footer { background: var(--navy-dark); padding: 64px 0 0; }
.nv-footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.nv-footer-brand p {
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
  margin-top: 12px;
  max-width: 280px;
}
.nv-footer h4 {
  color: #fff;
  font-size: 0.9rem;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.nv-footer-links a {
  display: block;
  color: rgba(255,255,255,0.5);
  font-size: 0.88rem;
  padding: 4px 0;
  transition: color var(--transition);
}
.nv-footer-links a:hover { color: var(--amber); }
.nv-footer-social {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}
.nv-footer-social a {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.08);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  transition: all var(--transition);
}
.nv-footer-social a:hover {
  background: var(--amber);
  color: var(--navy);
}
.nv-footer-bottom {
  text-align: center;
  padding: 24px;
  color: rgba(255,255,255,0.35);
  font-size: 0.82rem;
}

/* ============================================
   SCROLL REVEAL
   ============================================ */
.nv-reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.nv-revealed {
  opacity: 1;
  transform: translateY(0);
}
/* Fallback: if JS hasn't fired after 1.5s, show anyway */
.nv-reveal { animation: nvFallback 0s 1.5s forwards; }
.nv-revealed { animation: none; }
@keyframes nvFallback { to { opacity: 1; transform: translateY(0); } }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .nv-portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .nv-portfolio-grid .nv-project-card:last-child { grid-column: span 2; }
  .nv-footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nv-nav, .nv-header-cta { display: none; }
  .nv-nav-toggle { display: flex; }
  .nv-hero-inner { padding: 48px 24px 32px; }
  .nv-hero-stats { gap: 24px; flex-wrap: wrap; }
  .nv-stat-num { font-size: 1.5rem; }
  .nv-services-grid { grid-template-columns: 1fr; }
  .nv-portfolio-grid { grid-template-columns: 1fr; }
  .nv-portfolio-grid .nv-project-card:last-child { grid-column: auto; }
  .nv-team-grid { grid-template-columns: 1fr; max-width: 320px; margin: 0 auto; }
  .nv-testimonials-grid { grid-template-columns: 1fr; }
  .nv-contact-grid { grid-template-columns: 1fr; }
  .nv-footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .nv-section { padding: 64px 0; }
  .nv-section-header { margin-bottom: 36px; }
}