/* ================================================================
   VERTEX TECH SOLUTIONS — styles.css
   Sections:
     1.  CSS Variables  — dark default + light overrides
     2.  Reset & Base
     3.  Lucide icon defaults
     4.  Utility & Buttons
     5.  Scroll-reveal animation
     6.  Navigation
     7.  Theme toggle
     8.  Hero
     9.  About strip & stats
    10.  Services cards
    11.  CTA banner
    12.  Contact form section
    13.  Footer
    14.  Responsive — tablet ≤ 900px
    15.  Responsive — mobile  ≤ 600px
   ================================================================ */


/* ----------------------------------------------------------------
   1. CSS VARIABLES
   ---------------------------------------------------------------- */
:root {
  --bg:           #080b12;
  --bg-card:      #0e1420;
  --bg-nav:       rgba(8,11,18,0.75);
  --bg-footer:    rgba(5,8,16,0.8);
  --bg-cta:       rgba(11,22,36,0.5);
  --bg-stat:      #0e1420;

  --glass-bg:     rgba(14,20,32,0.35);
  --glass-border: rgba(255,255,255,0.2);
  --glass-blur:   blur(40px);
  --glass-shadow: 0 12px 40px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.1);

  --accent:       #00d8c8;
  --accent-2:     #7b5ef8;
  --accent-rgb:   0, 216, 200;

  --text:         #e8eaf2;
  --text-muted:   #6b7280;
  --text-heading: #ffffff;

  --border:       rgba(255,255,255,0.07);
  --shadow-card:  0 8px 32px rgba(0,0,0,0.45);

  --orb-1:        rgba(0,216,200,0.12);
  --orb-2:        rgba(123,94,248,0.12);
  --grid-dot:     rgba(0,216,200,0.12);

  --card-num:       rgba(255,255,255,0.04);
  --card-num-hover: rgba(0,216,200,0.09);

  --radius:    14px;
  --font-head: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --ease:      cubic-bezier(0.4,0,0.2,1);
  --t:         0.35s cubic-bezier(0.4,0,0.2,1);
}

[data-theme="light"] {
  --bg:           #f0f4f8;
  --bg-card:      #ffffff;
  --bg-nav:       rgba(240,244,248,0.75);
  --bg-footer:    rgba(221,228,238,0.8);
  --bg-cta:       rgba(224,238,255,0.5);
  --bg-stat:      #ffffff;

  --glass-bg:     rgba(255,255,255,0.45);
  --glass-border: rgba(255,255,255,0.6);
  --glass-blur:   blur(40px);
  --glass-shadow: 0 12px 40px rgba(0,0,0,0.12), inset 0 1px 0 rgba(255,255,255,0.4);

  --text:         #0f172a;
  --text-muted:   #64748b;
  --text-heading: #0f172a;

  --border:       rgba(0,0,0,0.09);
  --shadow-card:  0 4px 24px rgba(0,0,0,0.08);

  --orb-1:        rgba(0,200,190,0.15);
  --orb-2:        rgba(123,94,248,0.12);
  --grid-dot:     rgba(0,180,170,0.15);

  --card-num:       rgba(0,0,0,0.04);
  --card-num-hover: rgba(0,180,170,0.10);
}


/* ----------------------------------------------------------------
   2. RESET & BASE
   ---------------------------------------------------------------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

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

body {
  font-family: var(--font-body);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  transition: background-color var(--t), color var(--t);
  position: relative;
}

/* Animated background orbs */
body::before, body::after {
  content: '';
  position: fixed;
  z-index: -1;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(120px);
  opacity: 0.6;
  animation: glassOrbFloat 25s ease-in-out infinite alternate;
}
body::before {
  width: 60vw; height: 60vw;
  max-width: 800px; max-height: 800px;
  top: -10%; right: -10%;
  background: var(--orb-1);
}
body::after {
  width: 50vw; height: 50vw;
  max-width: 600px; max-height: 600px;
  bottom: -20%; left: -10%;
  background: var(--orb-2);
  animation-duration: 30s;
  animation-delay: -10s;
}
@keyframes glassOrbFloat {
  0%   { transform: translate(0,0) scale(1); }
  50%  { transform: translate(-5vw,10vh) scale(1.1); }
  100% { transform: translate(10vw,-10vh) scale(0.9); }
}

::-webkit-scrollbar       { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

a   { color: inherit; text-decoration: none; transition: color var(--t); }
ul  { list-style: none; }
img { display: block; max-width: 100%; }


/* ----------------------------------------------------------------
   3. LUCIDE ICON DEFAULTS
   ---------------------------------------------------------------- */
svg[data-lucide] {
  display: inline-block;
  width: 1em; height: 1em;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  vertical-align: middle;
  flex-shrink: 0;
  overflow: visible;
}


/* ----------------------------------------------------------------
   4. UTILITY & BUTTONS
   ---------------------------------------------------------------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.gradient-text {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 50px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  white-space: nowrap;
  transition: background-color var(--t), box-shadow var(--t),
              transform var(--t), color var(--t), border-color var(--t), opacity var(--t);
}
.btn svg[data-lucide] { width: 1rem; height: 1rem; }
.btn:disabled { opacity: 0.65; cursor: not-allowed; transform: none !important; }

.btn-primary {
  background-color: var(--accent);
  color: #000;
  box-shadow: 0 0 20px rgba(var(--accent-rgb), 0.25);
}
.btn-primary:not(:disabled):hover {
  background-color: #00ffe9;
  box-shadow: 0 0 36px rgba(var(--accent-rgb), 0.45);
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--glass-border);
  color: var(--text);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.btn-ghost:not(:disabled):hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 8px 24px rgba(var(--accent-rgb), 0.2);
  transform: translateY(-2px);
  background: rgba(255,255,255,0.08);
}
[data-theme="light"] .btn-ghost {
  background: rgba(255,255,255,0.4);
  border-color: rgba(0,0,0,0.15);
}
[data-theme="light"] .btn-ghost:not(:disabled):hover {
  border-color: var(--accent);
  background: rgba(255,255,255,0.6);
}


/* ----------------------------------------------------------------
   5. SCROLL-REVEAL
   Elements start invisible and slide up.
   JS adds .visible when they enter the viewport.
   pointer-events:none while hidden so invisible elements don't
   block clicks on anything beneath them.
   ---------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  pointer-events: none;
  will-change: opacity, transform;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  will-change: auto;
}


/* ----------------------------------------------------------------
   6. NAVIGATION
   ---------------------------------------------------------------- */
#navbar {
  position: fixed;
  top: 16px; left: 16px; right: 16px;
  max-width: 1200px;
  margin: 0 auto;
  border-radius: 24px;
  z-index: 1000;
  padding: 16px 0;
  background-color: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  overflow: hidden;
  transition: transform var(--t), padding var(--t), background-color var(--t);
}
#navbar.scrolled { padding: 12px 0; }
#navbar.hidden   { transform: translateY(-150%); }

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Logo */
.logo { display: flex; align-items: center; flex-shrink: 0; }
.logo-img {
  height: 36px; width: auto;
  display: block;
  transition: transform var(--t), filter var(--t), opacity var(--t);
}
.logo-dark       { display: block; }
.logo-light-img  { display: none; }
[data-theme="light"] .logo-dark      { display: none; }
[data-theme="light"] .logo-light-img { display: block; }
.logo-dark { filter: drop-shadow(0 0 10px rgba(var(--accent-rgb),0.35)); }
.logo:hover .logo-dark {
  transform: scale(1.05);
  filter: drop-shadow(0 0 18px rgba(var(--accent-rgb),0.6)) brightness(1.08);
}
.logo-light-img { filter: drop-shadow(0 2px 4px rgba(0,0,0,0.12)); }
.logo:hover .logo-light-img {
  transform: scale(1.05);
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.18));
}
.footer-brand .logo-img { height: 32px; }

/* Desktop nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  flex: 1;
  justify-content: center;
}
.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  position: relative;
  padding-bottom: 4px;
  transition: color var(--t);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: width var(--t);
}
.nav-link:hover,
.nav-link.active          { color: var(--accent); }
.nav-link:hover::after,
.nav-link.active::after   { width: 100%; }

/* Contact CTA pill */
.nav-cta {
  padding: 8px 20px;
  border: 1px solid var(--accent);
  border-radius: 50px;
  color: var(--accent) !important;
}
.nav-cta::after { display: none; }
.nav-cta:hover  { background-color: var(--accent); color: #000 !important; }

/* Controls row */
.nav-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  width: 34px; height: 34px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--t), opacity var(--t), background-color var(--t);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  max-height: 0;
  overflow: hidden;
  background-color: transparent;
  border-top: 1px solid transparent;
  transition: max-height 0.4s var(--ease), padding 0.4s ease, border-color var(--t);
}
.mobile-menu.open {
  max-height: 360px;
  padding: 10px 0 18px;
  border-top-color: var(--glass-border);
}
.mobile-menu ul { display: flex; flex-direction: column; padding: 0 24px; }
.mob-link {
  display: block;
  padding: 13px 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  transition: color var(--t), padding-left var(--t);
}
.mob-link:hover { color: var(--accent); padding-left: 8px; }


/* ----------------------------------------------------------------
   7. THEME TOGGLE
   ---------------------------------------------------------------- */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  cursor: pointer;
  color: var(--text);
  flex-shrink: 0;
  transition: border-color var(--t), background-color var(--t), color var(--t), box-shadow var(--t);
}
.theme-toggle:hover {
  border-color: var(--accent);
  background-color: rgba(var(--accent-rgb),0.1);
  color: var(--accent);
  box-shadow: 0 0 12px rgba(var(--accent-rgb),0.2);
}
.theme-toggle svg[data-lucide] { width: 16px; height: 16px; }


/* ----------------------------------------------------------------
   8. HERO
   ---------------------------------------------------------------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 120px 24px 80px;
  text-align: center;
  background-color: var(--bg);
  transition: background-color var(--t);
}

.hero-grid {
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, var(--grid-dot) 1px, transparent 1px);
  background-size: 44px 44px;
  animation: gridDrift 20s linear infinite;
  pointer-events: none;
}
@keyframes gridDrift {
  from { background-position: 0 0; }
  to   { background-position: 44px 44px; }
}

.orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  animation: orbPulse 8s ease-in-out infinite alternate;
}
.orb-1 { width:500px; height:500px; background:var(--orb-1); filter:blur(90px); top:-120px; right:-80px; }
.orb-2 { width:380px; height:380px; background:var(--orb-2); filter:blur(90px); bottom:-80px; left:-60px; animation-delay:-3s; }
@keyframes orbPulse {
  from { transform: scale(1) translate(0,0); }
  to   { transform: scale(1.15) translate(20px,-20px); }
}

.hero-content { position: relative; z-index: 2; max-width: 800px; margin: 0 auto; }

.hero-tag {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(var(--accent-rgb),0.35);
  padding: 6px 18px;
  border-radius: 50px;
  margin-bottom: 28px;
  animation: fadeDown 0.8s ease both;
}
.hero-title {
  font-family: var(--font-head);
  font-size: clamp(2.6rem, 6vw, 5.2rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--text-heading);
  margin-bottom: 24px;
  animation: fadeDown 0.8s 0.15s ease both;
  transition: color var(--t);
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 40px;
  animation: fadeDown 0.8s 0.3s ease both;
}
.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeDown 0.8s 0.45s ease both;
}
@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.scroll-indicator {
  position: absolute;
  bottom: 30px; left: 50%;
  transform: translateX(-50%);
  width: 28px; height: 44px;
  border: 2px solid rgba(var(--accent-rgb),0.35);
  border-radius: 14px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}
.scroll-indicator span {
  display: block;
  width: 4px; height: 8px;
  background: var(--accent);
  border-radius: 2px;
  animation: scrollBob 2s ease-in-out infinite;
}
@keyframes scrollBob {
  0%,100% { transform: translateY(0); opacity: 1; }
  60%     { transform: translateY(10px); opacity: 0.2; }
}


/* ----------------------------------------------------------------
   9. ABOUT STRIP & STATS
   ---------------------------------------------------------------- */
.about-strip {
  padding: 100px 0;
  background-color: var(--glass-bg);
  /* Fallback for browsers without backdrop-filter */
  background-color: var(--bg-card);
  background-color: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
  transition: background-color var(--t);
}
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-text h2 {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-heading);
  margin-bottom: 20px;
  transition: color var(--t);
}
.about-text > p { color: var(--text-muted); max-width: 420px; }

.about-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }

.stat {
  background-color: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: var(--radius);
  padding: 28px 16px 22px;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: transform var(--t), border-color var(--t), background-color var(--t), box-shadow var(--t);
}
.stat::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
.stat:hover { border-color: var(--accent); transform: translateY(-4px); }

.stat-icon { color: var(--accent); margin-bottom: 10px; }
.stat-icon svg[data-lucide] { width: 22px; height: 22px; opacity: 0.8; }

.stat-row {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
  margin-bottom: 6px;
}
.stat-number { font-family: var(--font-head); font-size: 2.4rem; font-weight: 800; color: var(--accent); line-height: 1; }
.stat-suffix { font-family: var(--font-head); font-size: 1.6rem; font-weight: 800; color: var(--accent); line-height: 1; }
.stat > p    { font-size: 0.82rem; color: var(--text-muted); }


/* ----------------------------------------------------------------
  10. SERVICES CARDS
   ---------------------------------------------------------------- */
.services {
  padding: 100px 0;
  background-color: transparent;
  transition: background-color var(--t);
}
.section-header { text-align: center; margin-bottom: 64px; }
.section-header h2 {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 800;
  color: var(--text-heading);
  margin-bottom: 14px;
  transition: color var(--t);
}
.section-sub { color: var(--text-muted); max-width: 500px; margin: 0 auto; }

.cards-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }

.card {
  background-color: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: var(--radius);
  padding: 36px 28px;
  position: relative;
  overflow: hidden;
  cursor: default;
  /* Only transition visual properties — NOT opacity/transform which belong to .reveal */
  transition: border-color var(--t), box-shadow var(--t), background-color var(--t);
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: -101%; right: 101%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: left var(--t), right var(--t);
}
.card:hover::before { left: 0; right: 0; }
.card:hover {
  border-color: rgba(var(--accent-rgb),0.4);
  box-shadow: 0 20px 48px rgba(var(--accent-rgb),0.1), var(--shadow-card);
}

.card-num {
  position: absolute;
  top: 18px; right: 20px;
  font-family: var(--font-head);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--card-num);
  line-height: 1;
  user-select: none;
  pointer-events: none;
  transition: color var(--t);
}
.card:hover .card-num { color: var(--card-num-hover); }

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  border-radius: 12px;
  background: rgba(var(--accent-rgb),0.1);
  color: var(--accent);
  margin-bottom: 18px;
  transition: transform var(--t), background-color var(--t);
}
.card-icon svg[data-lucide] { width: 24px; height: 24px; }
.card:hover .card-icon { transform: scale(1.12) rotate(-4deg); background: rgba(var(--accent-rgb),0.18); }

.card h3 {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 4px;
  transition: color var(--t);
}
.card-tag {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}
.card-body {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 20px;
}

/* "Get Started →" link — only visible on hover */
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity var(--t), transform var(--t);
  pointer-events: none; /* invisible = not clickable */
}
.card-link svg[data-lucide] { width: 14px; height: 14px; transition: transform var(--t); }
.card:hover .card-link { opacity: 1; transform: translateX(0); pointer-events: auto; }
.card:hover .card-link svg[data-lucide] { transform: translateX(3px); }


/* ----------------------------------------------------------------
/* ----------------------------------------------------------------
  11. CTA BANNER
   ---------------------------------------------------------------- */
.cta-banner {
  position: relative;
  overflow: hidden;
  padding: 80px 24px;
  text-align: center;
  background-color: var(--bg-cta);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
  transition: background-color var(--t);
}
.cta-glow {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 50%,
    rgba(var(--accent-rgb),0.07) 0%, transparent 70%);
  pointer-events: none;
}
.cta-banner h2 {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--text-heading);
  margin-bottom: 14px;
  position: relative;
  transition: color var(--t);
}
.cta-banner > .container > p {
  color: var(--text-muted);
  margin-bottom: 32px;
  position: relative;
}
.cta-banner .btn { position: relative; }


/* ----------------------------------------------------------------
  13. CONTACT FORM SECTION
   ---------------------------------------------------------------- */
.contact-section {
  position: relative;
  padding: 120px 0;
  /* removed overflow:hidden — it was clipping the glassmorphism glow */
}

.contact-bg-glow {
  position: absolute; inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 50% at 10% 60%, var(--orb-1), transparent),
    radial-gradient(ellipse 50% 40% at 85% 30%, var(--orb-2), transparent);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
  position: relative; /* sit above the glow */
  z-index: 1;
}

/* LEFT — info panel */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding-top: 8px;
}
.contact-heading {
  font-family: var(--font-head);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-heading);
  transition: color var(--t);
}
/* Gradient accent word in heading */
.contact-accent {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.contact-desc { color: var(--text-muted); max-width: 380px; }

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.contact-details li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.contact-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}
.contact-icon svg { width: 18px; height: 18px; }
.contact-detail-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 3px;
}
.contact-details a,
.contact-details span:not(.contact-detail-label) {
  font-size: 0.95rem;
  color: var(--text);
  transition: color var(--t);
}
.contact-details a:hover { color: var(--accent); }

.contact-availability {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 40px;
  width: fit-content;
}
.availability-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #22c55e;
  flex-shrink: 0;
  animation: pulseDot 2s ease-in-out infinite;
}
@keyframes pulseDot {
  0%,100% { box-shadow: 0 0 0 0 rgba(34,197,94,0.5); }
  50%     { box-shadow: 0 0 0 6px rgba(34,197,94,0); }
}

/* RIGHT — form panel */
.contact-form-wrap {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 44px 40px;
  box-shadow: var(--glass-shadow);
  position: relative;
}
.contact-form-wrap::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 24px 24px 0 0;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

/* Floating-label fields */
.form-float { position: relative; }
.form-float input,
.form-float textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  padding: 20px 0 10px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--t);
  resize: none;
}
.form-float textarea { min-height: 110px; }

.form-float label {
  position: absolute;
  top: 20px; left: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  pointer-events: none;
  transition: top 0.25s var(--ease), font-size 0.25s var(--ease), color 0.25s;
}
.form-float input:focus ~ label,
.form-float input:not(:placeholder-shown) ~ label,
.form-float textarea:focus ~ label,
.form-float textarea:not(:placeholder-shown) ~ label {
  top: 2px;
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.form-line {
  display: block;
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 2px;
  transition: width 0.35s var(--ease);
}
.form-float input:focus ~ .form-line,
.form-float textarea:focus ~ .form-line { width: 100%; }

.optional { font-size: 0.78rem; color: var(--text-muted); font-weight: 400; }

/* Service chips */
.service-chips-group { display: flex; flex-direction: column; gap: 12px; }
.chips-label {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.service-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.service-chips input[type="checkbox"] { display: none; }
.service-chips label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: 40px;
  border: 1px solid var(--border);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s var(--ease);
  user-select: none;
}
.service-chips label:hover { border-color: var(--accent); color: var(--accent); }
.service-chips input:checked + label {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
  color: #000;
  font-weight: 600;
}
.service-chips label svg { width: 13px; height: 13px; flex-shrink: 0; transition: color 0.2s; }
.service-chips input:checked + label svg { color: #000; }

/* Submit button */
.contact-submit {
  align-self: flex-start;
  position: relative;
  overflow: hidden;
}
.btn-shimmer {
  position: absolute;
  top: 0; left: -100%;
  width: 60%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s ease;
}
.contact-submit:hover .btn-shimmer { left: 160%; }

/* Privacy toggle */
.privacy-toggle-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.privacy-toggle {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  cursor: pointer;
}
.privacy-toggle input[type="checkbox"] { display: none; }
.toggle-track {
  position: relative;
  width: 44px; height: 24px;
  background: var(--border);
  border-radius: 50px;
  border: 1px solid var(--border);
  flex-shrink: 0;
  margin-top: 2px;
  transition: background 0.3s var(--ease), border-color 0.3s;
  cursor: pointer;
}
.toggle-thumb {
  position: absolute;
  top: 3px; left: 3px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: transform 0.3s var(--ease), background 0.3s;
}
.privacy-toggle input:checked ~ .toggle-track {
  background: var(--accent);
  border-color: var(--accent);
}
.privacy-toggle input:checked ~ .toggle-track .toggle-thumb {
  transform: translateX(20px);
  background: #000;
}
.toggle-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.toggle-text a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.privacy-toggle-error {
  display: none;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: #f87171;
  padding-left: 58px;
}
.privacy-toggle-error svg   { width: 14px; height: 14px; flex-shrink: 0; }
.privacy-toggle-error.visible { display: flex; }

/* Success message */
.form-success {
  display: none;
  align-items: center;
  gap: 8px;
  color: #22c55e;
  font-size: 0.92rem;
  font-weight: 500;
  padding: 12px 16px;
  background: rgba(34,197,94,0.08);
  border: 1px solid rgba(34,197,94,0.2);
  border-radius: 10px;
}
.form-success svg { width: 18px; height: 18px; flex-shrink: 0; }


/* ----------------------------------------------------------------
  14. FOOTER
   ---------------------------------------------------------------- */
footer {
  background-color: var(--bg-footer);
  border-top: 1px solid var(--border);
  padding: 72px 0 0;
  transition: background-color var(--t);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.6fr;
  gap: 48px;
  margin-bottom: 56px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand > p { font-size: 0.9rem; color: var(--text-muted); max-width: 260px; line-height: 1.7; }

.footer-col h4 {
  font-family: var(--font-head);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.footer-col ul li,
.footer-col p { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 10px; }
.footer-col a { transition: color var(--t); }
.footer-col a:hover { color: var(--accent); }

.footer-contact p { display: flex; align-items: center; gap: 10px; }
.footer-icon { color: var(--accent); flex-shrink: 0; }
.footer-icon svg[data-lucide] { width: 15px; height: 15px; }
.footer-contact a { word-break: break-all; }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.footer-bottom-links {
  display: flex;
  gap: 20px;
}
.footer-privacy-link {
  font-size: 0.82rem;
  color: var(--text-muted);
  border-bottom: 1px solid transparent;
  /* Single unified transition — no duplicate */
  transition: color var(--t), border-color var(--t);
}
.footer-privacy-link:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}


/* ----------------------------------------------------------------
  15. RESPONSIVE — Tablet ≤ 900px
   ---------------------------------------------------------------- */
@media (max-width: 900px) {
  .nav-links  { display: none; }
  .hamburger  { display: flex; }

  .about-inner { grid-template-columns: 1fr; gap: 48px; }
  .cards-grid  { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }

  .contact-wrapper { grid-template-columns: 1fr; gap: 48px; }
  .contact-desc    { max-width: 100%; }
}


/* ----------------------------------------------------------------
  16. RESPONSIVE — Mobile ≤ 600px
   ---------------------------------------------------------------- */
@media (max-width: 600px) {
  .hero-title  { font-size: 2.2rem; }
  .about-stats { grid-template-columns: 1fr; }
  .cards-grid  { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom       { flex-direction: column; text-align: center; }
  .footer-bottom-links { justify-content: center; }

  .contact-form-wrap { padding: 32px 24px; }
  .form-row          { grid-template-columns: 1fr; gap: 28px; }
  .contact-submit    { width: 100%; justify-content: center; }
}