/* ============================================================
   EV Consulting Agency — Main Stylesheet
   Brand Colors: Electric Blue #0066CC → Teal #00B4B4
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=Instrument+Sans:ital,wght@0,300;0,400;0,500;0,600;1,300&display=swap');

/* ── RESET & ROOT ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

:root {
  /* Brand gradient pulled from logo */
  --blue:       #0077e6;
  --blue-dark:  #0055bb;
  --blue-deep:  #003a8c;
  --teal:       #00c4c4;
  --teal-dark:  #009999;
  --teal-mid:   #00aaaa;

  /* Gradient */
  --grad:       linear-gradient(135deg, var(--blue) 0%, var(--teal) 100%);
  --grad-rev:   linear-gradient(135deg, var(--teal) 0%, var(--blue) 100%);
  --grad-text:  linear-gradient(90deg, var(--blue) 0%, var(--teal) 100%);

  /* Neutrals */
  --dark:       #060d1a;
  --dark-2:     #0b1628;
  --dark-3:     #0f1f38;
  --dark-4:     #152845;
  --mid:        #1e3a5f;
  --border:     rgba(0,180,180,0.15);
  --border-2:   rgba(0,119,230,0.2);
  --white:      #f4f8ff;
  --gray:       #6b8cad;
  --text:       #b8cce0;

  /* Glow effects */
  --glow-blue:  0 0 40px rgba(0,119,230,0.3);
  --glow-teal:  0 0 40px rgba(0,196,196,0.3);

  /* Spacing */
  --nav-h: 80px;
}

body {
  font-family: 'Instrument Sans', sans-serif;
  background: var(--dark);
  color: var(--white);
  overflow-x: hidden;
  line-height: 1.6;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--dark-2); }
::-webkit-scrollbar-thumb { background: var(--grad); border-radius: 3px; }

/* ── SELECTION ── */
::selection { background: rgba(0,119,230,0.4); color: #fff; }

/* ── TYPOGRAPHY ── */
h1, h2, h3, h4 { font-family: 'Syne', sans-serif; line-height: 1.1; }

.grad-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── LAYOUT ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 40px; }
.section { padding: 100px 0; }
.section-sm { padding: 60px 0; }

.section-tag {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 11px; font-weight: 600; letter-spacing: 3px; text-transform: uppercase;
  color: var(--teal); margin-bottom: 20px;
}
.section-tag::before {
  content: ''; display: block;
  width: 24px; height: 2px;
  background: var(--grad);
}

/* ── NAV ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-h);
  display: flex; align-items: center;
  transition: all 0.3s;
}
.nav.scrolled {
  background: rgba(6,13,26,0.95);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 40px rgba(0,0,0,0.4);
}
.nav-inner {
  width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 40px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  display: flex; align-items: center; gap: 12px;
  text-decoration: none;
}
.nav-logo img { height: 42px; width: auto; }
.nav-logo-text {
  font-family: 'Syne', sans-serif;
  font-size: 16px; font-weight: 700; letter-spacing: 1px;
  color: var(--white); line-height: 1.2;
}
.nav-logo-text span { display: block; font-size: 10px; font-weight: 400; color: var(--teal); letter-spacing: 2px; text-transform: uppercase; }
.nav-links { display: flex; align-items: center; gap: 8px; list-style: none; }
.nav-links a {
  color: var(--text); font-size: 13px; font-weight: 500;
  text-decoration: none; padding: 8px 16px; border-radius: 4px;
  transition: all 0.2s; letter-spacing: 0.3px;
}
.nav-links a:hover, .nav-links a.active { color: var(--white); background: rgba(0,119,230,0.1); }
.nav-links a.active { color: var(--teal); }
.nav-cta {
  background: var(--grad) !important;
  color: #fff !important;
  padding: 10px 24px !important;
  font-weight: 600 !important;
  border-radius: 4px !important;
  transition: opacity 0.2s, transform 0.2s !important;
}
.nav-cta:hover { opacity: 0.9 !important; transform: translateY(-1px) !important; background: var(--grad) !important; }

.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--white); transition: all 0.3s; border-radius: 2px; }
.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 {
  display: none; position: fixed; top: var(--nav-h); left: 0; right: 0;
  background: rgba(6,13,26,0.98); backdrop-filter: blur(20px);
  padding: 24px 40px 32px; border-bottom: 1px solid var(--border);
  z-index: 999;
}
.mobile-menu.open { display: block; }
.mobile-menu ul { list-style: none; display: flex; flex-direction: column; gap: 4px; }
.mobile-menu a { display: block; padding: 12px 0; color: var(--text); text-decoration: none; font-size: 16px; font-weight: 500; border-bottom: 1px solid var(--border); }
.mobile-menu a:last-child { border-bottom: none; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: 'Syne', sans-serif; font-weight: 600; font-size: 14px;
  letter-spacing: 0.5px; text-decoration: none;
  padding: 14px 32px; border-radius: 4px;
  border: none; cursor: pointer; transition: all 0.25s;
}
.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 4px 24px rgba(0,119,230,0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(0,119,230,0.5); }
.btn-outline {
  background: transparent;
  color: var(--teal);
  border: 1px solid var(--teal);
}
.btn-outline:hover { background: rgba(0,196,196,0.08); transform: translateY(-2px); }
.btn-ghost {
  background: transparent; color: var(--white);
  padding: 14px 0;
}
.btn-ghost::after { content: ' →'; transition: margin-left 0.2s; }
.btn-ghost:hover::after { margin-left: 4px; }
.btn-ghost:hover { color: var(--teal); }

/* ── CARDS ── */
.card {
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 36px 32px;
  transition: all 0.3s;
  position: relative; overflow: hidden;
}
.card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--grad); transform: scaleX(0); transform-origin: left;
  transition: transform 0.3s;
}
.card:hover { transform: translateY(-6px); border-color: var(--border-2); box-shadow: var(--glow-blue); }
.card:hover::before { transform: scaleX(1); }

/* ── GRID LAYOUTS ── */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* ── DIVIDER ── */
.divider { height: 1px; background: var(--border); margin: 0; }

/* ── BADGE ── */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(0,119,230,0.1); border: 1px solid rgba(0,119,230,0.3);
  color: var(--teal); font-size: 11px; font-weight: 600;
  letter-spacing: 2px; text-transform: uppercase;
  padding: 6px 16px; border-radius: 2px;
}
.badge::before { content: '◆'; font-size: 6px; }

/* ── ANIMATIONS ── */
@keyframes fadeUp { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes pulse { 0%,100% { opacity:1; } 50% { opacity:0.5; } }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes shimmer { from { background-position: -200% 0; } to { background-position: 200% 0; } }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes gradMove { 0% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } 100% { background-position: 0% 50%; } }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

.anim-fade-up { animation: fadeUp 0.7s ease forwards; }
.delay-1 { animation-delay: 0.1s; opacity: 0; }
.delay-2 { animation-delay: 0.22s; opacity: 0; }
.delay-3 { animation-delay: 0.34s; opacity: 0; }
.delay-4 { animation-delay: 0.46s; opacity: 0; }
.delay-5 { animation-delay: 0.58s; opacity: 0; }

/* ── PAGE HERO (shared) ── */
.page-hero {
  padding: calc(var(--nav-h) + 80px) 0 80px;
  position: relative; overflow: hidden;
}
.page-hero-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 70% 80% at 20% 50%, rgba(0,100,200,0.12) 0%, transparent 60%),
              radial-gradient(ellipse 50% 60% at 80% 80%, rgba(0,180,180,0.08) 0%, transparent 50%);
}
.page-hero h1 { font-size: clamp(40px, 5vw, 64px); margin-bottom: 20px; }
.page-hero p { font-size: 18px; color: var(--text); max-width: 560px; line-height: 1.8; }

/* ── FOOTER ── */
footer {
  background: var(--dark-2);
  border-top: 1px solid var(--border);
  padding: 72px 0 32px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 56px; }
.footer-brand img { height: 44px; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; color: var(--text); line-height: 1.7; max-width: 280px; }
.footer-col h4 { font-family: 'Syne', sans-serif; font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--teal); margin-bottom: 20px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col a { color: var(--text); text-decoration: none; font-size: 14px; transition: color 0.2s; }
.footer-col a:hover { color: var(--white); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 28px; border-top: 1px solid var(--border); flex-wrap: wrap; gap: 16px; }
.footer-bottom p { font-size: 13px; color: var(--gray); }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  width: 36px; height: 36px; border-radius: 4px;
  border: 1px solid var(--border); color: var(--gray);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; text-decoration: none; transition: all 0.2s;
}
.footer-social a:hover { border-color: var(--teal); color: var(--teal); }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .section { padding: 72px 0; }
  .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}