/* ═══════════════════════════════════════
   AAO Web & AI Solutions — style.css
   Colour palette:
     Navy:    #0F172A
     Blue:    #2563EB
     Cyan:    #06B6D4
     White:   #FFFFFF
     Light:   #F8FAFC
     Text:    #1E293B
═══════════════════════════════════════ */

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

:root {
  --navy:    #0F172A;
  --blue:    #2563EB;
  --cyan:    #06B6D4;
  --white:   #FFFFFF;
  --light:   #F8FAFC;
  --text:    #1E293B;
  --text-muted: #64748B;
  --border:  #E2E8F0;
  --radius:  14px;
  --radius-sm: 8px;
  --shadow:  0 4px 24px rgba(15,23,42,0.08);
  --shadow-lg: 0 16px 48px rgba(15,23,42,0.14);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-head: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
}

/* Dark mode variables */
[data-theme="dark"] {
  --white:   #0F172A;
  --light:   #1E293B;
  --text:    #F1F5F9;
  --text-muted: #94A3B8;
  --border:  #334155;
  --shadow:  0 4px 24px rgba(0,0,0,0.3);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.4);
}

html { scroll-behavior: smooth; }

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Loader ── */
#loader {
  position: fixed; inset: 0;
  background: var(--navy);
  z-index: 9999;
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.5s, visibility 0.5s;
}
#loader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }

.loader-inner { text-align: center; }

.loader-logo {
  font-family: var(--font-head);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #2563EB, #06B6D4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.loader-bar {
  width: 200px;
  height: 3px;
  background: rgba(255,255,255,0.15);
  border-radius: 99px;
  overflow: hidden;
}

.loader-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #2563EB, #06B6D4);
  border-radius: 99px;
  animation: loadFill 1.4s ease forwards;
}

@keyframes loadFill { to { width: 100%; } }

/* ── Scroll progress ── */
.scroll-progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  z-index: 1001;
  background: transparent;
  pointer-events: none;
}
.scroll-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  transition: width 0.1s linear;
}

/* ── Reveal animations ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }

/* ── Typography ── */
h1, h2, h3, h4 {
  font-family: var(--font-head);
  line-height: 1.15;
  font-weight: 700;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
  background: rgba(37,99,235,0.08);
  border: 1px solid rgba(37,99,235,0.2);
  padding: 0.35rem 0.9rem;
  border-radius: 99px;
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  color: var(--text);
  margin-bottom: 1rem;
}

.section-sub {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 560px;
  margin-bottom: 3rem;
}
.gradient-text {
    display: inline-block;
    background: linear-gradient(135deg, var(--blue), var(--cyan));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue), #1D4ED8);
  color: #fff;
  box-shadow: 0 4px 16px rgba(37,99,235,0.35);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #1D4ED8, var(--blue));
  box-shadow: 0 6px 24px rgba(37,99,235,0.5);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: rgba(37,99,235,0.04);
}

.btn-sm { padding: 0.5rem 1.1rem; font-size: 0.85rem; }
.btn-full { width: 100%; justify-content: center; }

/* ══════════════════════════════════════════
   NAVIGATION
══════════════════════════════════════════ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}

#navbar.scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border);
  padding: 0.65rem 0;
}

[data-theme="dark"] #navbar.scrolled {
  background: rgba(15,23,42,0.92);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav-logo {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.04em;
  transition: color var(--transition);
}

#navbar.scrolled .nav-logo { color: var(--text); }

.logo-aao { }
.logo-dot { color: var(--cyan); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin: 0 auto;
}

.nav-links a {
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  transition: all var(--transition);
}
.nav-links a:hover { color: #fff; background: rgba(255,255,255,0.1); }
#navbar.scrolled .nav-links a { color: var(--text-muted); }
#navbar.scrolled .nav-links a:hover { color: var(--text); background: var(--light); }

.nav-links .nav-cta {
  background: linear-gradient(135deg, var(--blue), #1D4ED8);
  color: #fff !important;
  padding: 0.5rem 1.1rem;
  box-shadow: 0 2px 10px rgba(37,99,235,0.4);
}
.nav-links .nav-cta:hover {
  box-shadow: 0 4px 16px rgba(37,99,235,0.55);
  transform: translateY(-1px);
  background: linear-gradient(135deg, #1D4ED8, var(--blue)) !important;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

#darkToggle {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,0.25);
  background: transparent;
  color: rgba(255,255,255,0.85);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  transition: all var(--transition);
}
#darkToggle:hover { border-color: rgba(255,255,255,0.6); color: #fff; }
#navbar.scrolled #darkToggle { border-color: var(--border); color: var(--text-muted); }
#navbar.scrolled #darkToggle:hover { border-color: var(--blue); color: var(--blue); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.3rem;
}
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: #fff;
  border-radius: 99px;
  transition: all var(--transition);
}
#navbar.scrolled .hamburger span { background: var(--text); }
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ══════════════════════════════════════════
   HERO
══════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--navy);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 8rem 0 5rem;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(37,99,235,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.06) 1px, transparent 1px);
  background-size: 48px 48px;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.55;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.22;
  animation: orbFloat 8s ease-in-out infinite alternate;
}
.orb-1 { width: 500px; height: 500px; background: #2563EB; top: -100px; left: -100px; animation-delay: 0s; }
.orb-2 { width: 350px; height: 350px; background: #06B6D4; bottom: -80px; right: -60px; animation-delay: -3s; }
.orb-3 { width: 280px; height: 280px; background: #7C3AED; top: 50%; left: 60%; animation-delay: -5s; }

@keyframes orbFloat {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(30px, -40px) scale(1.05); }
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: rgba(6,182,212,0.12);
  border: 1px solid rgba(6,182,212,0.3);
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.4rem 1rem;
  border-radius: 99px;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.hero-sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.65);
  max-width: 560px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.hero-trust {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
  font-weight: 500;
}
.trust-item i { color: var(--cyan); }

.hero-scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  color: rgba(255,255,255,0.35);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: scrollBob 2s ease-in-out infinite;
}

@keyframes scrollBob {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ══════════════════════════════════════════
   STATS
══════════════════════════════════════════ */
.stats-section {
  padding: 4rem 0;
  background: var(--white);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.stat-card {
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--light);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }

.stat-icon {
  font-size: 1.5rem;
  color: var(--blue);
  margin-bottom: 0.75rem;
}

.stat-number {
  font-family: var(--font-head);
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ══════════════════════════════════════════
   SECTIONS — shared
══════════════════════════════════════════ */
.section-light { background: var(--light); }

.about-section, .services-section, .why-section,
.portfolio-section, .testimonials-section, .contact-section {
  padding: 5.5rem 0;
}

/* ══════════════════════════════════════════
   ABOUT
══════════════════════════════════════════ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  margin-top: 2.5rem;
}

.about-lead {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 1rem;
}

.about-text p { color: var(--text-muted); margin-bottom: 0.85rem; }

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.about-feature-card {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: all var(--transition);
}
.about-feature-card:hover { box-shadow: var(--shadow); border-color: rgba(37,99,235,0.2); }

.afc-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, rgba(37,99,235,0.1), rgba(6,182,212,0.1));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--blue);
  font-size: 1rem;
  flex-shrink: 0;
}
.about-feature-card h4 { font-size: 0.9rem; margin-bottom: 0.25rem; }
.about-feature-card p { font-size: 0.82rem; color: var(--text-muted); margin: 0; }

/* ══════════════════════════════════════════
   SERVICES
══════════════════════════════════════════ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.service-card {
  background: var(--light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(37,99,235,0.15);
}
.service-card:hover::before { opacity: 1; }

.sc-icon {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, rgba(37,99,235,0.1), rgba(6,182,212,0.1));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--blue);
  font-size: 1.1rem;
  margin-bottom: 1rem;
  transition: all var(--transition);
}
.service-card:hover .sc-icon {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
}

.service-card h3 { font-size: 1rem; margin-bottom: 0.5rem; }
.service-card p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }

/* ══════════════════════════════════════════
   WHY CHOOSE US
══════════════════════════════════════════ */
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.why-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  text-align: center;
  transition: all var(--transition);
}
.why-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(37,99,235,0.15); }

.why-card > i {
  font-size: 1.6rem;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.85rem;
  display: block;
}
.why-card h4 { font-size: 0.95rem; margin-bottom: 0.4rem; }
.why-card p { font-size: 0.82rem; color: var(--text-muted); }

/* ══════════════════════════════════════════
   PORTFOLIO
══════════════════════════════════════════ */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.portfolio-card {
  background: var(--light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
}
.portfolio-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }

.portfolio-img {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}
.portfolio-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.portfolio-card:hover .portfolio-img img { transform: scale(1.05); }

.portfolio-placeholder {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, rgba(37,99,235,0.08), rgba(6,182,212,0.12));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.8rem;
}
.portfolio-placeholder i { font-size: 1.75rem; color: var(--border); }

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15,23,42,0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
  backdrop-filter: blur(4px);
}
.portfolio-card:hover .portfolio-overlay { opacity: 1; }

.portfolio-info { padding: 1.25rem; }
.portfolio-cat {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue);
  display: block;
  margin-bottom: 0.4rem;
}
.portfolio-info h3 { font-size: 1rem; margin-bottom: 0.35rem; }
.portfolio-info p { font-size: 0.83rem; color: var(--text-muted); }

/* ══════════════════════════════════════════
   PORTFOLIO MODAL
══════════════════════════════════════════ */
.portfolio-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.portfolio-modal.open { visibility: visible; opacity: 1; }

.portfolio-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15,23,42,0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.portfolio-modal-content {
  position: relative;
  background: var(--white);
  border-radius: var(--radius);
  max-width: 640px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  transform: translateY(24px) scale(0.97);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.portfolio-modal.open .portfolio-modal-content { transform: translateY(0) scale(1); }

.portfolio-modal-close {
  position: absolute;
  top: 1rem; right: 1rem;
  width: 38px; height: 38px;
  border-radius: 50%;
  border: none;
  background: rgba(15,23,42,0.55);
  color: #fff;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  z-index: 2;
  transition: background var(--transition);
}
.portfolio-modal-close:hover { background: rgba(15,23,42,0.85); }

.portfolio-modal-img {
  aspect-ratio: 16/8;
  background: linear-gradient(135deg, rgba(37,99,235,0.12), rgba(6,182,212,0.16));
  display: flex; align-items: center; justify-content: center;
  color: var(--border);
  font-size: 2.5rem;
}

.portfolio-modal-body { padding: 2rem; }
.portfolio-modal-body h3 { font-size: 1.4rem; margin: 0.5rem 0 0.9rem; }
.portfolio-modal-body p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 1.25rem; }

.portfolio-modal-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.5rem; }
.portfolio-modal-tags span {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  border-radius: 99px;
  background: rgba(37,99,235,0.08);
  color: var(--blue);
  border: 1px solid rgba(37,99,235,0.18);
}

/* ══════════════════════════════════════════
   TESTIMONIALS
══════════════════════════════════════════ */
.testimonials-carousel {
  position: relative;
  margin-top: 2.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.tc-viewport { overflow: hidden; flex: 1; }

.tc-track {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.65, 0, 0.35, 1);
}

.tc-track .testimonial-card {
  flex: 0 0 100%;
  max-width: 100%;
}

.tc-nav {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  background: var(--white);
  color: var(--text);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.tc-nav:hover { border-color: var(--blue); color: var(--blue); background: rgba(37,99,235,0.06); }

.tc-dots {
  position: absolute;
  bottom: -2.5rem;
  left: 0; right: 0;
  display: flex;
  justify-content: center;
  gap: 0.5rem;
}
.tc-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--border);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: all var(--transition);
}
.tc-dot.active { background: var(--blue); width: 22px; border-radius: 99px; }

.testimonial-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: box-shadow var(--transition);
  position: relative;
}

.tc-stars { color: #F59E0B; font-size: 0.85rem; margin-bottom: 1rem; display: flex; gap: 3px; }
.tc-text { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 1.5rem; font-style: italic; }

.tc-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.tc-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
}
.tc-author strong { display: block; font-size: 0.9rem; }
.tc-author span { font-size: 0.78rem; color: var(--text-muted); }

/* ══════════════════════════════════════════
   FAQ
══════════════════════════════════════════ */
.faq-list {
  max-width: 780px;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
  transition: border-color var(--transition);
}
.faq-item:has(.faq-question[aria-expanded="true"]) { border-color: rgba(37,99,235,0.35); }

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.4rem;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-head);
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text);
}

.faq-question i {
  flex-shrink: 0;
  color: var(--blue);
  transition: transform var(--transition);
}
.faq-question[aria-expanded="true"] i { transform: rotate(180deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-answer p {
  padding: 0 1.4rem 1.4rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ══════════════════════════════════════════
   CONTACT
══════════════════════════════════════════ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 4rem;
  align-items: start;
  margin-top: 2.5rem;
}

.contact-logo {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 0.5rem;
}
.contact-logo span { color: var(--cyan); }
.contact-tagline { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 2rem; }

.contact-details { margin-bottom: 2rem; display: flex; flex-direction: column; gap: 0.85rem; }

.cd-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.cd-item i {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, rgba(37,99,235,0.1), rgba(6,182,212,0.1));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--blue);
  font-size: 0.85rem;
  flex-shrink: 0;
}
.cd-item a:hover { color: var(--blue); }

.social-links { display: flex; gap: 0.6rem; }

.social-link {
  width: 38px; height: 38px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: all var(--transition);
}
.social-link:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: rgba(37,99,235,0.06);
  transform: translateY(-2px);
}

/* Contact form */
.contact-form {
  background: var(--light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
}

.form-group input,
.form-group textarea {
  padding: 0.7rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--white);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
}

.form-group textarea { resize: vertical; }

/* Honeypot spam trap — hidden from real users, still reachable by bots */
.hp-field {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.form-status {
  margin-top: 1rem;
  font-size: 0.875rem;
  text-align: center;
  font-weight: 500;
}
.form-status.success { color: #10B981; }
.form-status.error { color: #EF4444; }

/* Field-level validation */
.form-group.field-invalid input,
.form-group.field-invalid textarea {
  border-color: #EF4444;
}
.form-group.field-invalid input:focus,
.form-group.field-invalid textarea:focus {
  box-shadow: 0 0 0 3px rgba(239,68,68,0.12);
}
.form-group.field-valid input,
.form-group.field-valid textarea {
  border-color: #10B981;
}
.form-group.field-valid input:focus,
.form-group.field-valid textarea:focus {
  box-shadow: 0 0 0 3px rgba(16,185,129,0.12);
}
.field-error-msg {
  display: block;
  min-height: 1.1em;
  font-size: 0.78rem;
  color: #EF4444;
  margin-top: -0.15rem;
}

/* ══════════════════════════════════════════
   FOOTER
══════════════════════════════════════════ */
.footer {
  background: var(--navy);
  color: rgba(255,255,255,0.6);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo {
  font-family: var(--font-head);
  font-size: 1.75rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.75rem;
}
.footer-logo span { color: var(--cyan); }
.footer-brand p { font-size: 0.87rem; margin-bottom: 1.5rem; line-height: 1.6; }

.footer-brand .social-links .social-link {
  border-color: rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.5);
}
.footer-brand .social-links .social-link:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(6,182,212,0.08);
}

.footer-col h4 {
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #fff;
  margin-bottom: 1.2rem;
}

.footer-col ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col a, .footer-col span { font-size: 0.875rem; transition: color var(--transition); }
.footer-col a:hover { color: var(--cyan); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.82rem;
}

.footer-legal { display: flex; gap: 1.5rem; }
.footer-legal a { transition: color var(--transition); }
.footer-legal a:hover { color: var(--cyan); }

/* ══════════════════════════════════════════
   BACK TO TOP
══════════════════════════════════════════ */
#backToTop {
  position: fixed;
  bottom: 2rem; right: 2rem;
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--blue), #1D4ED8);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 0.85rem;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(37,99,235,0.45);
  opacity: 0; visibility: hidden;
  transition: all var(--transition);
  z-index: 900;
}
#backToTop.visible { opacity: 1; visibility: visible; }
#backToTop:hover { transform: translateY(-3px); box-shadow: 0 6px 24px rgba(37,99,235,0.6); }

/* ══════════════════════════════════════════
   AI ASSISTANT WIDGET
══════════════════════════════════════════ */
.ai-chat {
  position: fixed;
  bottom: 2rem; left: 2rem;
  z-index: 950;
}

.ai-chat-toggle {
  position: relative;
  width: 58px; height: 58px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  font-size: 1.3rem;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 24px rgba(37,99,235,0.45);
  transition: transform var(--transition), box-shadow var(--transition);
}
.ai-chat-toggle:hover { transform: translateY(-3px); box-shadow: 0 10px 32px rgba(37,99,235,0.55); }
.ai-chat.open .ai-chat-toggle { transform: rotate(90deg) scale(0.92); }

.ai-chat-pulse {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--cyan);
  animation: aiPulse 2.4s ease-out infinite;
}
.ai-chat.open .ai-chat-pulse { display: none; }

@keyframes aiPulse {
  0% { transform: scale(1); opacity: 0.7; }
  100% { transform: scale(1.6); opacity: 0; }
}

.ai-chat-panel {
  position: absolute;
  bottom: 74px; left: 0;
  width: min(360px, 88vw);
  height: min(520px, 70vh);
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform-origin: bottom left;
  transform: scale(0.9) translateY(12px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease, visibility 0.25s ease;
}
.ai-chat.open .ai-chat-panel {
  transform: scale(1) translateY(0);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.ai-chat-header {
  background: linear-gradient(135deg, var(--navy), #1E293B);
  padding: 1rem 1.1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.ai-chat-header-info { display: flex; align-items: center; gap: 0.7rem; }

.ai-chat-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.ai-chat-header-info strong { color: #fff; font-size: 0.9rem; display: block; }
.ai-chat-status { font-size: 0.72rem; color: rgba(255,255,255,0.6); display: flex; align-items: center; gap: 0.3rem; }
.ai-chat-status i { font-size: 0.45rem; color: #10B981; }

#aiChatClose {
  width: 30px; height: 30px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.8);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition);
}
#aiChatClose:hover { background: rgba(255,255,255,0.2); color: #fff; }

.ai-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  background: var(--light);
}

.ai-msg {
  max-width: 82%;
  padding: 0.6rem 0.9rem;
  border-radius: 14px;
  font-size: 0.85rem;
  line-height: 1.5;
  animation: aiMsgIn 0.25s ease;
}
@keyframes aiMsgIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

.ai-msg.bot {
  align-self: flex-start;
  background: var(--white);
  border: 1px solid var(--border);
  color: var(--text);
  border-bottom-left-radius: 4px;
}
.ai-msg.user {
  align-self: flex-end;
  background: linear-gradient(135deg, var(--blue), #1D4ED8);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.ai-msg.typing {
  display: flex;
  gap: 4px;
  padding: 0.85rem 1rem;
  align-items: center;
}
.ai-msg.typing span {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--text-muted);
  animation: aiTypingDot 1.2s infinite ease-in-out;
}
.ai-msg.typing span:nth-child(2) { animation-delay: 0.15s; }
.ai-msg.typing span:nth-child(3) { animation-delay: 0.3s; }
@keyframes aiTypingDot { 0%, 60%, 100% { transform: translateY(0); opacity: 0.4; } 30% { transform: translateY(-4px); opacity: 1; } }

.ai-chat-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  padding: 0 1.1rem 0.75rem;
  flex-shrink: 0;
  background: var(--light);
}
.ai-chat-quick:empty { display: none; }
.ai-quick-btn {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.4rem 0.8rem;
  border-radius: 99px;
  border: 1px solid rgba(37,99,235,0.25);
  background: rgba(37,99,235,0.06);
  color: var(--blue);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.ai-quick-btn:hover { background: rgba(37,99,235,0.14); }

.ai-chat-input-row {
  display: flex;
  gap: 0.5rem;
  padding: 0.85rem;
  border-top: 1px solid var(--border);
  background: var(--white);
  flex-shrink: 0;
}
.ai-chat-input-row input {
  flex: 1;
  border: 1.5px solid var(--border);
  border-radius: 99px;
  padding: 0.6rem 1rem;
  font-size: 0.85rem;
  font-family: var(--font-body);
  background: var(--light);
  color: var(--text);
  outline: none;
  transition: border-color var(--transition);
}
.ai-chat-input-row input:focus { border-color: var(--blue); }
.ai-chat-input-row button {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition);
}
.ai-chat-input-row button:hover { transform: scale(1.06); }

.ai-chat-footer {
  text-align: center;
  font-size: 0.68rem;
  color: var(--text-muted);
  padding: 0.5rem 0.75rem 0.7rem;
  background: var(--white);
  flex-shrink: 0;
}

/* ══════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════ */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
  .hamburger { display: flex; }

  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    height: 100vh;
    width: min(320px, 85vw);
    background: var(--navy);
    flex-direction: column;
    align-items: flex-start;
    padding: 5rem 2rem 2rem;
    gap: 0.25rem;
    transition: right var(--transition);
    box-shadow: -8px 0 32px rgba(0,0,0,0.3);
    z-index: 999;
    overflow-y: auto;
  }
  .nav-links.open { right: 0; }
  .nav-links a { color: rgba(255,255,255,0.75) !important; font-size: 1rem; padding: 0.65rem 1rem; width: 100%; }
  .nav-links a:hover { color: #fff !important; background: rgba(255,255,255,0.08) !important; }
  .nav-links .nav-cta { margin-top: 1rem; }

  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .about-features { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .form-row { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .portfolio-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 2rem; }
  .hero-ctas { flex-direction: column; align-items: center; }
  .hero-trust { flex-direction: column; align-items: center; }
  .contact-form { padding: 1.5rem; }

  .ai-chat { bottom: 1.25rem; left: 1.25rem; }
  .ai-chat-panel { width: min(340px, 92vw); height: min(480px, 72vh); bottom: 68px; }
  #backToTop { bottom: 1.25rem; right: 1.25rem; }
  .portfolio-modal-body { padding: 1.5rem; }
  .tc-nav { width: 36px; height: 36px; font-size: 0.8rem; }
}

/* ══════════════════════════════════════════
   REDUCED MOTION
══════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .orb { animation: none; }
  .hero-scroll-hint { animation: none; }
  .ai-chat-pulse { animation: none; display: none; }
  .ai-msg.typing span { animation: none; opacity: 0.6; }
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}