/* ============================================================
   SVN Nexus Private Limited — Main Stylesheet
   ============================================================ */

/* ---------- CSS Custom Properties (Design Tokens) ---------- */
:root {
  --primary:       #4F46E5;   /* Indigo */
  --primary-dark:  #3730A3;
  --primary-light: #818CF8;
  --accent:        #06B6D4;   /* Cyan */
  --accent2:       #8B5CF6;   /* Purple */
  --success:       #10B981;
  --warning:       #F59E0B;
  --danger:        #EF4444;
  --text-dark:     #0F172A;
  --text-body:     #334155;
  --text-muted:    #64748B;
  --bg-white:      #FFFFFF;
  --bg-light:      #F8FAFC;
  --bg-dark:       #0F172A;
  --border:        #E2E8F0;
  --card-shadow:   0 4px 24px rgba(15, 23, 42, 0.08);
  --card-shadow-hover: 0 12px 40px rgba(79, 70, 229, 0.18);
  --radius:        14px;
  --radius-sm:     8px;
  --transition:    0.3s ease;
  --font:          'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --nav-h:         72px;
}

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

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

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

img { max-width: 100%; height: auto; display: block; }
a  { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font); }

/* ---------- Utility Classes ---------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-pad { padding: 96px 0; }
.bg-light     { background: var(--bg-light); }

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(79, 70, 229, 0.08);
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 12px;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.25;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  border: 2px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent2));
  color: #fff;
  box-shadow: 0 4px 18px rgba(79, 70, 229, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(79, 70, 229, 0.45);
}

.btn-outline {
  border-color: var(--primary);
  color: var(--primary);
  background: transparent;
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}

.btn-nav {
  background: var(--primary);
  color: #fff;
  padding: 9px 22px;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
}
.btn-nav:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.btn-white {
  background: #fff;
  color: var(--primary);
  font-weight: 700;
  border-color: #fff;
}
.btn-white:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.btn-full { width: 100%; justify-content: center; }

/* ---------- Scroll Reveal Animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.reveal-right {
  transform: translateX(40px);
}
.reveal.visible {
  opacity: 1;
  transform: translate(0, 0);
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  border-color: var(--border);
  box-shadow: 0 2px 20px rgba(15, 23, 42, 0.08);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--accent2));
  border-radius: 10px;
  color: #fff;
  font-size: 1.1rem;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-dark);
  letter-spacing: -0.02em;
}
.logo-text .accent { color: var(--primary); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav-link {
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-body);
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover,
.nav-link.active {
  color: var(--primary);
  background: rgba(79, 70, 229, 0.07);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 4px;
  transition: all var(--transition);
}
.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); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, #EEF2FF 0%, #F8FAFC 50%, #E0F2FE 100%);
  padding-top: var(--nav-h);
}

/* Decorative background shapes */
.hero-bg-shapes { position: absolute; inset: 0; pointer-events: none; }
.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
}
.shape-1 {
  width: 520px; height: 520px;
  background: radial-gradient(circle, var(--primary-light), transparent);
  top: -120px; right: -100px;
}
.shape-2 {
  width: 380px; height: 380px;
  background: radial-gradient(circle, var(--accent), transparent);
  bottom: -80px; left: -80px;
}
.shape-3 {
  width: 280px; height: 280px;
  background: radial-gradient(circle, var(--accent2), transparent);
  top: 40%; left: 40%;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 64px;
  padding-top: 48px;
  padding-bottom: 64px;
  position: relative;
  z-index: 1;
}

.hero-text .badge {
  display: inline-block;
  background: rgba(79, 70, 229, 0.1);
  color: var(--primary);
  border: 1px solid rgba(79, 70, 229, 0.2);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.hero-text h1 {
  font-size: clamp(2.4rem, 4.5vw, 3.6rem);
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.18;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 480px;
  margin-bottom: 36px;
  line-height: 1.75;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
}
.stat { display: flex; flex-direction: column; }
.stat-num {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1;
}
.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 4px;
}
.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* Hero Card Mockup */
.hero-image { position: relative; }

.hero-card-mockup {
  background: #fff;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.14);
  overflow: hidden;
  max-width: 440px;
  margin-left: auto;
}

.mockup-header {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 14px 18px;
  background: #F1F5F9;
  border-bottom: 1px solid var(--border);
}
.dot {
  width: 12px; height: 12px;
  border-radius: 50%;
}
.dot.red    { background: #EF4444; }
.dot.yellow { background: #F59E0B; }
.dot.green  { background: #10B981; }

.mockup-body { padding: 24px 20px; display: flex; flex-direction: column; gap: 16px; }

.mockup-line {
  height: 10px;
  background: #E2E8F0;
  border-radius: 6px;
}
.mockup-line.w80  { width: 80%; }
.mockup-line.w60  { width: 60%; }
.mockup-line.w100 { width: 100%; }
.mockup-line.w70  { width: 70%; }
.mockup-line.w50  { width: 50%; }
.mockup-line.accent-line { background: linear-gradient(90deg, var(--primary), var(--accent)); }

.mockup-block {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #F8FAFC;
  padding: 12px 14px;
  border-radius: 10px;
}
.mockup-icon {
  width: 36px; height: 36px;
  background: rgba(79, 70, 229, 0.12);
  color: var(--primary);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}
.mockup-icon.green-icon {
  background: rgba(16, 185, 129, 0.12);
  color: var(--success);
}
.mockup-text-block { flex: 1; display: flex; flex-direction: column; gap: 6px; }

.mockup-chart {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 64px;
  padding: 8px 4px 0;
}
.bar {
  flex: 1;
  background: linear-gradient(180deg, var(--primary), var(--accent));
  border-radius: 4px 4px 0 0;
  opacity: 0.8;
}

/* Floating badges */
.floating-badge {
  position: absolute;
  background: #fff;
  padding: 10px 16px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-dark);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
.floating-badge i { color: var(--primary); }
.badge-1 { bottom: 40px; left: -30px; animation: float 3.5s ease-in-out infinite; }
.badge-2 { top: 30px;    left: -20px; animation: float 3.5s ease-in-out infinite 1.2s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

/* Hero scroll hint */
.hero-scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}
.hero-scroll-hint a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 2px solid var(--border);
  color: var(--text-muted);
  animation: bounce 2s ease-in-out infinite;
  transition: border-color var(--transition), color var(--transition);
}
.hero-scroll-hint a:hover { border-color: var(--primary); color: var(--primary); }
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(6px); }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 72px;
}

.about-img-wrapper {
  position: relative;
  border-radius: 20px;
  overflow: visible;
}
.about-img-wrapper img {
  width: 100%;
  border-radius: 20px;
  box-shadow: var(--card-shadow);
  object-fit: cover;
  max-height: 460px;
}

.about-experience-badge {
  position: absolute;
  bottom: -24px;
  right: -24px;
  background: linear-gradient(135deg, var(--primary), var(--accent2));
  color: #fff;
  padding: 20px 24px;
  border-radius: var(--radius);
  text-align: center;
  font-weight: 700;
  font-size: 0.85rem;
  box-shadow: 0 8px 28px rgba(79, 70, 229, 0.35);
  line-height: 1.4;
}
.about-experience-badge .years {
  display: block;
  font-size: 2rem;
  font-weight: 800;
}

.about-text .section-title { text-align: left; margin-top: 8px; }
.about-text p { color: var(--text-muted); margin-bottom: 16px; }

.about-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 24px 0 32px;
}
.about-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
  color: var(--text-dark);
  font-size: 0.95rem;
}
.about-list li i { color: var(--success); font-size: 1rem; flex-shrink: 0; }

/* ============================================================
   SERVICES
   ============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 36px 28px;
  border: 1px solid var(--border);
  box-shadow: var(--card-shadow);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--card-shadow-hover);
  border-color: rgba(79, 70, 229, 0.3);
}

.service-icon-wrap {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
  flex-shrink: 0;
}
.icon-blue   { background: rgba(79, 70, 229, 0.1); color: var(--primary); }
.icon-purple { background: rgba(139, 92, 246, 0.1); color: var(--accent2); }
.icon-green  { background: rgba(16, 185, 129, 0.1); color: var(--success); }

.service-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}
.service-card > p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 20px; }

.service-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 28px;
  flex: 1;
}
.service-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-body);
}
.service-list li i { color: var(--success); font-size: 0.8rem; flex-shrink: 0; }

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  transition: gap var(--transition), color var(--transition);
  margin-top: auto;
}
.service-link:hover { gap: 10px; color: var(--primary-dark); }

/* ============================================================
   WHY CHOOSE US
   ============================================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 32px 24px;
  border: 1px solid var(--border);
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
}

.feature-icon {
  width: 60px; height: 60px;
  background: linear-gradient(135deg, rgba(79,70,229,0.12), rgba(6,182,212,0.1));
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  color: var(--primary);
  margin: 0 auto 18px;
}

.feature-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ============================================================
   PORTFOLIO
   ============================================================ */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

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

.portfolio-img {
  position: relative;
  overflow: hidden;
  height: 210px;
}
.portfolio-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.portfolio-card:hover .portfolio-img img { transform: scale(1.06); }

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: rgba(79, 70, 229, 0.82);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}
.portfolio-card:hover .portfolio-overlay { opacity: 1; }

.portfolio-info { padding: 22px 22px 26px; }
.portfolio-tag {
  display: inline-block;
  background: rgba(79, 70, 229, 0.08);
  color: var(--primary);
  padding: 3px 12px;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 10px;
}
.portfolio-info h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}
.portfolio-info p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials { background: linear-gradient(160deg, #EEF2FF 0%, #F8FAFC 100%); }

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

.testimonial-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 32px 28px;
  border: 1px solid var(--border);
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
}

.quote-icon {
  font-size: 1.5rem;
  color: var(--primary-light);
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--text-body);
  line-height: 1.75;
  flex: 1;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}
.testimonial-author img {
  width: 48px; height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border);
}
.testimonial-author strong {
  display: block;
  font-size: 0.95rem;
  color: var(--text-dark);
}
.testimonial-author span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.stars { color: var(--warning); font-size: 0.85rem; letter-spacing: 2px; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 56px;
  align-items: start;
}

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

.contact-info-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}

.contact-icon {
  width: 46px; height: 46px;
  background: rgba(79, 70, 229, 0.08);
  color: var(--primary);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  border: 1px solid rgba(79, 70, 229, 0.15);
}

.contact-info-item strong {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 4px;
}
.contact-info-item a,
.contact-info-item span {
  font-size: 0.95rem;
  color: var(--text-dark);
  font-weight: 500;
  transition: color var(--transition);
}
.contact-info-item a:hover { color: var(--primary); }

.contact-social {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}
.contact-social a {
  width: 40px; height: 40px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  font-size: 1rem;
  transition: all var(--transition);
}
.contact-social a:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}

/* Contact Form */
.contact-form-wrap {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 40px 36px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group { display: flex; flex-direction: column; }
.form-group.full-width { margin-bottom: 24px; }

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 7px;
}
.required { color: var(--danger); }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 15px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.9rem;
  color: var(--text-dark);
  background: var(--bg-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  resize: vertical;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}
.form-group input.error,
.form-group select.error,
.form-group textarea.error {
  border-color: var(--danger);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: #CBD5E1; }

.error-msg {
  color: var(--danger);
  font-size: 0.78rem;
  margin-top: 5px;
  min-height: 16px;
  display: block;
}

.form-success {
  display: none;
  background: rgba(16, 185, 129, 0.08);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  margin-top: 16px;
  text-align: center;
}
.form-success.show { display: flex; align-items: center; justify-content: center; gap: 10px; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { background: var(--bg-dark); color: #CBD5E1; }

.footer-top { padding: 72px 0 48px; }

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
}

.footer-brand .nav-logo { color: #fff; margin-bottom: 16px; display: inline-flex; }
.footer-brand .logo-text { color: #fff; }
.footer-brand p {
  font-size: 0.9rem;
  color: #94A3B8;
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 300px;
}

.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.06);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: #94A3B8;
  font-size: 0.9rem;
  transition: all var(--transition);
}
.footer-social a:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}

.footer-col h5 {
  font-size: 0.875rem;
  font-weight: 700;
  color: #F1F5F9;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col ul li a {
  font-size: 0.9rem;
  color: #94A3B8;
  transition: color var(--transition), padding-left var(--transition);
}
.footer-col ul li a:hover { color: #fff; padding-left: 4px; }

.footer-contact-list { gap: 12px !important; }
.footer-contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: #94A3B8;
}
.footer-contact-list li i { color: var(--primary-light); margin-top: 3px; flex-shrink: 0; }
.footer-contact-list li a { color: #94A3B8; }
.footer-contact-list li a:hover { color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 20px 0;
}
.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { font-size: 0.85rem; color: #64748B; }

.footer-legal {
  display: flex;
  gap: 24px;
}
.footer-legal a {
  font-size: 0.85rem;
  color: #64748B;
  transition: color var(--transition);
}
.footer-legal a:hover { color: #94A3B8; }

/* ============================================================
   BACK TO TOP BUTTON
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--accent2));
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(79, 70, 229, 0.4);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: all var(--transition);
  z-index: 999;
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.5);
}

/* ============================================================
   RESPONSIVE — Tablet (max 1024px)
   ============================================================ */
@media (max-width: 1024px) {
  .hero-content       { gap: 40px; }
  .services-grid      { grid-template-columns: 1fr 1fr; }
  .features-grid      { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid     { grid-template-columns: 1fr 1fr; }
  .testimonials-grid  { grid-template-columns: 1fr 1fr; }
  .contact-grid       { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid        { grid-template-columns: 1fr 1fr; gap: 36px; }
  .about-grid         { gap: 48px; }
}

/* ============================================================
   RESPONSIVE — Mobile (max 768px)
   ============================================================ */
@media (max-width: 768px) {
  .section-pad { padding: 64px 0; }

  /* Navbar */
  .hamburger { display: flex; }
  .btn-nav   { display: none; }

  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(14px);
    flex-direction: column;
    padding: 24px 24px 32px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-110%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
    box-shadow: 0 8px 32px rgba(15, 23, 42, 0.1);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-link { padding: 12px 16px; font-size: 1rem; border-radius: 10px; }

  /* Hero */
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 48px;
    padding-top: 32px;
  }
  .hero-text h1    { font-size: 2.2rem; }
  .hero-sub        { margin: 0 auto 32px; }
  .hero-cta        { justify-content: center; }
  .hero-stats      { justify-content: center; }
  .hero-image      { display: none; }

  /* About */
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-text .section-title { text-align: center; }
  .about-text { text-align: center; }
  .about-list li { justify-content: center; }
  .about-text .btn { width: 100%; justify-content: center; }

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

  /* Why Us */
  .features-grid    { grid-template-columns: 1fr 1fr; gap: 16px; }

  /* Portfolio */
  .portfolio-grid   { grid-template-columns: 1fr; }

  /* Testimonials */
  .testimonials-grid { grid-template-columns: 1fr; }

  /* Contact */
  .contact-form-wrap { padding: 28px 20px; }
  .form-row { grid-template-columns: 1fr; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom .container { flex-direction: column; text-align: center; }
}

/* ============================================================
   RESPONSIVE — Small Mobile (max 480px)
   ============================================================ */
@media (max-width: 480px) {
  .features-grid { grid-template-columns: 1fr; }
  .hero-stats    { flex-direction: column; gap: 12px; }
  .stat-divider  { width: 40px; height: 1px; }
  .hero-cta      { flex-direction: column; align-items: center; }
  .hero-cta .btn { width: 100%; justify-content: center; }
}