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

:root {
  --bg-dark: #060a12;
  --bg-card: rgba(12, 20, 38, 0.85);
  --accent-blue: #00d4ff;
  --accent-purple: #7b5cff;
  --accent-green: #00ffb2;
  --text-primary: #edf2ff;
  --text-muted: #7a8aaa;
  --border: rgba(0, 212, 255, 0.15);
  --glow-blue: 0 0 30px rgba(0, 212, 255, 0.25);
  --glow-purple: 0 0 30px rgba(123, 92, 255, 0.25);
  --radius: 16px;
  --transition: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.6;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--accent-blue); border-radius: 3px; }

/* ===== CANVAS BACKGROUND ===== */
#particle-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ===== NAV ===== */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 18px 5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(6, 10, 18, 0.7);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

nav.scrolled {
  padding: 12px 5%;
  background: rgba(6, 10, 18, 0.95);
}

.nav-logo {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  cursor: pointer;
}

.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.3px;
  transition: color 0.2s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--accent-blue);
  transition: width 0.3s;
}

.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  color: var(--bg-dark) !important;
  padding: 10px 22px;
  border-radius: 50px;
  font-weight: 700 !important;
  transition: opacity 0.2s, transform 0.2s !important;
}

.nav-cta:hover { opacity: 0.9; transform: translateY(-1px); }
.nav-cta::after { display: none !important; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--accent-blue);
  transition: var(--transition);
}

/* ===== SECTION BASE ===== */
section {
  position: relative;
  z-index: 1;
  padding: 120px 5%;
}

.section-tag {
  display: inline-block;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.3);
  color: var(--accent-blue);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-sub {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 560px;
  line-height: 1.75;
}

/* ===== HERO ===== */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
}

.hero-content {
  max-width: 700px;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.25);
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-blue);
  margin-bottom: 32px;
  animation: fadeInDown 0.8s ease both;
}

.hero-badge .dot {
  width: 8px; height: 8px;
  background: var(--accent-green);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.7); }
}

.hero-title {
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -2px;
  margin-bottom: 28px;
  animation: fadeInUp 0.9s 0.1s ease both;
}

.hero-title .line-2 {
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-purple) 60%, var(--accent-green) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 520px;
  line-height: 1.8;
  margin-bottom: 44px;
  animation: fadeInUp 1s 0.2s ease both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 1s 0.3s ease both;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  color: #fff;
  padding: 16px 32px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 0 40px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 50px rgba(0, 212, 255, 0.45);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  color: var(--text-primary);
  padding: 15px 32px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.btn-secondary:hover {
  border-color: var(--accent-blue);
  background: rgba(0, 212, 255, 0.06);
}

.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 64px;
  animation: fadeInUp 1s 0.4s ease both;
  flex-wrap: wrap;
}

.stat-item .stat-num {
  font-size: 2.2rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
}

.stat-item .stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 2px;
  letter-spacing: 0.3px;
}

.hero-visual {
  position: absolute;
  right: -2%;
  top: 50%;
  transform: translateY(-50%);
  width: 45%;
  max-width: 620px;
  animation: fadeInRight 1.2s 0.3s ease both;
  pointer-events: none;
}

.hero-visual svg { width: 100%; height: auto; }

/* Solutions preview panel (hero) */
.solutions-panel {
  background: rgba(12, 20, 38, 0.9);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--glow-blue);
  pointer-events: auto;
}

.solutions-panel-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 22px;
  background: rgba(0, 212, 255, 0.06);
  border-bottom: 1px solid rgba(0, 212, 255, 0.15);
}

.solutions-panel-header .dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}

.solutions-panel-header .dot.red { background: rgba(255, 90, 90, 0.6); }
.solutions-panel-header .dot.yellow { background: rgba(255, 200, 0, 0.6); }
.solutions-panel-header .dot.green { background: rgba(0, 255, 178, 0.6); }

.solutions-panel-header .panel-title {
  margin-left: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.3px;
}

.solutions-panel-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 26px;
}

.solution-tile {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 16px;
  transition: transform 0.3s, border-color 0.3s, background 0.3s;
}

.solution-tile:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 212, 255, 0.4);
  background: rgba(0, 212, 255, 0.05);
}

.solution-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.solution-icon.blue { background: rgba(0,212,255,0.1); border: 1px solid rgba(0,212,255,0.2); }
.solution-icon.purple { background: rgba(123,92,255,0.1); border: 1px solid rgba(123,92,255,0.2); }
.solution-icon.green { background: rgba(0,255,178,0.1); border: 1px solid rgba(0,255,178,0.2); }

.solution-name {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.35;
}

/* Floating cards on hero visual */
.float-card {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 18px;
  backdrop-filter: blur(20px);
  font-size: 0.82rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--glow-blue);
  animation: floatCard 4s ease-in-out infinite;
}

.float-card.card-1 { top: 8%; right: 5%; animation-delay: 0s; }
.float-card.card-2 { bottom: 20%; left: -5%; animation-delay: 1.5s; }
.float-card.card-3 { top: 50%; right: -2%; animation-delay: 0.8s; }

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

.float-card .card-icon { font-size: 1.3rem; }

/* ===== MARQUEE STRIP ===== */
.marquee-section {
  padding: 30px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  background: rgba(0, 212, 255, 0.02);
}

.marquee-track {
  display: flex;
  gap: 60px;
  animation: marquee 25s linear infinite;
  white-space: nowrap;
}

.marquee-track:hover { animation-play-state: paused; }

.marquee-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  flex-shrink: 0;
}

.marquee-item span { color: var(--accent-blue); font-size: 1.1rem; }

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ===== ABOUT ===== */
#about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-dashboard {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--glow-blue);
}

.about-dashboard svg { width: 100%; height: auto; display: block; }

.about-text .section-sub { margin-bottom: 28px; }

.about-feature {
  display: flex;
  gap: 14px;
  margin-bottom: 20px;
  align-items: flex-start;
}

.about-feature .feat-icon {
  width: 42px; height: 42px;
  border-radius: 10px;
  background: rgba(0,212,255,0.1);
  border: 1px solid rgba(0,212,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.about-feature h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 2px; }
.about-feature p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }

/* ===== SERVICES ===== */
#services { text-align: center; }

.services-header { max-width: 600px; margin: 0 auto 64px; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: left;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
  cursor: default;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s;
}

.service-card:hover {
  border-color: rgba(0, 212, 255, 0.4);
  transform: translateY(-6px);
  box-shadow: var(--glow-blue);
}

.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 22px;
}

.service-icon.blue { background: rgba(0,212,255,0.1); border: 1px solid rgba(0,212,255,0.2); }
.service-icon.purple { background: rgba(123,92,255,0.1); border: 1px solid rgba(123,92,255,0.2); }
.service-icon.green { background: rgba(0,255,178,0.1); border: 1px solid rgba(0,255,178,0.2); }

.service-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 12px; }
.service-card p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.75; }

.service-card .learn-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-blue);
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 20px;
  text-decoration: none;
  transition: gap 0.2s;
}

.service-card:hover .learn-more { gap: 10px; }

/* ===== HOW IT WORKS ===== */
#process { text-align: center; }
.process-header { max-width: 600px; margin: 0 auto 80px; }

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 36px;
  left: calc(12.5% + 28px);
  right: calc(12.5% + 28px);
  height: 1px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple), var(--accent-green));
  z-index: 0;
}

.step {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.step-num {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: var(--bg-dark);
  border: 2px solid var(--accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--accent-blue);
  margin-bottom: 24px;
  transition: background 0.3s, box-shadow 0.3s;
  position: relative;
}

.step:hover .step-num {
  background: rgba(0,212,255,0.1);
  box-shadow: var(--glow-blue);
}

.step h3 { font-size: 1rem; font-weight: 700; margin-bottom: 10px; }
.step p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.65; }

/* ===== METRICS ===== */
#metrics {
  background: linear-gradient(135deg, rgba(0,212,255,0.04) 0%, rgba(123,92,255,0.04) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 100px 5%;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.metric-cell {
  background: var(--bg-dark);
  padding: 48px 36px;
  text-align: center;
  transition: background 0.3s;
}

.metric-cell:hover { background: rgba(0,212,255,0.04); }

.metric-num {
  font-size: 3.2rem;
  font-weight: 900;
  letter-spacing: -2px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}

.metric-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ===== CASE STUDIES ===== */
#cases { text-align: center; }
.cases-header { max-width: 600px; margin: 0 auto 64px; }

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

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: left;
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.case-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--glow-purple);
  border-color: rgba(123,92,255,0.4);
}

.case-img {
  height: 200px;
  background: linear-gradient(135deg, rgba(0,212,255,0.15), rgba(123,92,255,0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  position: relative;
  overflow: hidden;
}

.case-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 50%, var(--bg-card));
}

.case-tag {
  position: absolute;
  bottom: 12px;
  left: 16px;
  z-index: 1;
  background: rgba(0,212,255,0.15);
  border: 1px solid rgba(0,212,255,0.3);
  color: var(--accent-blue);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 50px;
}

.case-body { padding: 24px; }
.case-body h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; }
.case-body p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 16px; }

.case-result {
  display: flex;
  gap: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.case-result .res-item .res-num {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--accent-green);
  letter-spacing: -0.5px;
}

.case-result .res-item .res-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ===== TESTIMONIALS ===== */
#testimonials { text-align: center; overflow: hidden; }
.testimonials-header { max-width: 600px; margin: 0 auto 64px; }

.testimonials-track {
  display: flex;
  gap: 24px;
  overflow: hidden;
  position: relative;
}

.testimonials-slider {
  display: flex;
  gap: 24px;
  transition: transform 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.testimonial-card {
  min-width: 400px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  text-align: left;
  flex-shrink: 0;
}

.testimonial-card .stars { color: #ffd93d; font-size: 0.9rem; margin-bottom: 16px; }
.testimonial-card blockquote {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-muted);
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-author .avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--bg-dark);
}

.testimonial-author .name { font-size: 0.9rem; font-weight: 700; }
.testimonial-author .title { font-size: 0.78rem; color: var(--text-muted); }

.slider-controls {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 40px;
}

.slider-btn {
  width: 44px; height: 44px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, background 0.2s;
}

.slider-btn:hover { border-color: var(--accent-blue); background: rgba(0,212,255,0.08); }

/* ===== CONTACT ===== */
#contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-info .section-sub { margin-bottom: 40px; }

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 28px;
}

.contact-item .ci-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-item h4 { font-size: 0.85rem; color: var(--text-muted); font-weight: 600; margin-bottom: 2px; }
.contact-item p { font-size: 0.95rem; font-weight: 600; }

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  backdrop-filter: blur(20px);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  color: var(--text-primary);
  font-size: 0.92rem;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  appearance: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(0,212,255,0.1);
}

.form-group select option {
  background: var(--bg-dark);
  color: var(--text-primary);
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(122,138,170,0.5); }
.form-group textarea { resize: vertical; min-height: 130px; }

.form-submit {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.form-submit:hover { opacity: 0.9; transform: translateY(-2px); }

/* ===== FOOTER ===== */
footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 60px 5% 30px;
  background: rgba(6,10,18,0.9);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .nav-logo { display: inline-block; margin-bottom: 16px; font-size: 1.5rem; }
.footer-brand p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; max-width: 280px; }

.footer-socials {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.footer-socials a {
  width: 36px; height: 36px;
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: border-color 0.2s, color 0.2s;
}

.footer-socials a:hover { border-color: var(--accent-blue); color: var(--accent-blue); }

.footer-col h5 {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-bottom: 18px;
}

.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.2s;
}
.footer-col ul li a:hover { color: var(--text-primary); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p { font-size: 0.82rem; color: var(--text-muted); }
.footer-bottom .footer-legal { display: flex; gap: 24px; }
.footer-bottom .footer-legal a { font-size: 0.82rem; color: var(--text-muted); text-decoration: none; transition: color 0.2s; }
.footer-bottom .footer-legal a:hover { color: var(--text-primary); }

/* ===== SCROLL ANIMATIONS ===== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* stagger delays */
.delay-1 { transition-delay: 0.1s !important; }
.delay-2 { transition-delay: 0.2s !important; }
.delay-3 { transition-delay: 0.3s !important; }
.delay-4 { transition-delay: 0.4s !important; }
.delay-5 { transition-delay: 0.5s !important; }
.delay-6 { transition-delay: 0.6s !important; }

/* ===== KEYFRAMES ===== */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(60px) translateY(-50%); }
  to   { opacity: 1; transform: translateX(0) translateY(-50%); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1100px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .process-steps::before { display: none; }
}

@media (max-width: 900px) {
  #about { grid-template-columns: 1fr; gap: 40px; }
  #contact { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { display: none; }
  .hero-title { font-size: clamp(2.2rem, 8vw, 4rem); }
  .cases-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 70px; left: 0; right: 0;
    background: rgba(6,10,18,0.98);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
  }
  .hamburger { display: flex; }
  .services-grid { grid-template-columns: 1fr; }
  .metrics-grid { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 28px; }
  .testimonial-card { min-width: calc(100vw - 40px); }
  section { padding: 80px 5%; }
}

/* ===== PLACEHOLDER HIGHLIGHT ===== */
.ph {
  background: rgba(255,200,0,0.12);
  border: 1px dashed rgba(255,200,0,0.4);
  border-radius: 4px;
  padding: 1px 6px;
  font-style: italic;
  color: rgba(255,200,0,0.9);
  font-size: inherit;
}