*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --sky-light: #e3f3ff;
  --sky: #9dd6ff;
  --blue-soft: #5bbfff;
  --blue-mid: #2da0e8;
  --blue-deep: #0070d4;
  --blue-vivid: #0057d6;
  --navy: #0a2540;
  --dark: #061220;
  --white: #ffffff;
  --cyan: #00d4ff;
  --cyan-light: #80eaff;
  --electric: #3b82f6;
  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-border: rgba(255, 255, 255, 0.6);
  --font-display: 'Playfair Display', serif;
  --font-body: 'DM Sans', sans-serif;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--dark);
  overflow-x: hidden;
  line-height: 1.7;
  background: var(--sky-light);
}

/* HEADER */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.2rem 3rem;
  transition: all 0.4s;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header.scrolled {
  background: rgba(227, 243, 255, 0.88);
  backdrop-filter: blur(24px);
  box-shadow: 0 2px 40px rgba(0, 112, 212, 0.12);
}
.header-logo {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--navy);
  text-decoration: none;
}
.header-logo span { color: var(--blue-mid); }
.header-nav { display: flex; gap: 2.5rem; list-style: none; }
.header-nav a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--navy);
  text-decoration: none;
  position: relative;
  transition: color 0.3s;
  letter-spacing: 0.02em;
}
.header-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  width: 0;
  height: 2.5px;
  background: linear-gradient(90deg, var(--cyan), var(--blue-deep));
  transition: all 0.3s;
  transform: translateX(-50%);
  border-radius: 2px;
}
.header-nav a:hover { color: var(--blue-deep); }
.header-nav a:hover::after { width: 100%; }
.burger { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; }
.burger span { width: 24px; height: 2.5px; background: var(--navy); transition: 0.3s; border-radius: 2px; }

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 6rem 2rem 4rem;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 15% 30%, rgba(0, 212, 255, 0.25) 0%, transparent 50%),
    radial-gradient(ellipse at 85% 20%, rgba(45, 160, 232, 0.3) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(91, 191, 255, 0.2) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 50%, rgba(0, 112, 212, 0.15) 0%, transparent 40%),
    linear-gradient(180deg, var(--sky-light) 0%, #f0f9ff 50%, var(--white) 100%);
}

/* Floating blobs - brighter */
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(50px);
  animation: blobFloat 10s ease-in-out infinite;
}
.blob-1 { width: 450px; height: 450px; background: rgba(0, 212, 255, 0.22); top: 5%; left: -8%; animation-delay: 0s; }
.blob-2 { width: 350px; height: 350px; background: rgba(45, 160, 232, 0.28); top: 55%; right: -5%; animation-delay: -3s; }
.blob-3 { width: 280px; height: 280px; background: rgba(91, 191, 255, 0.25); bottom: 5%; left: 25%; animation-delay: -7s; }
.blob-4 { width: 200px; height: 200px; background: rgba(0, 87, 214, 0.18); top: 30%; right: 20%; animation-delay: -5s; border-radius: 40% 60% 55% 45% / 50% 40% 60% 50%; }

@keyframes blobFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(35px, -25px) scale(1.08); }
  50% { transform: translate(-15px, 20px) scale(0.95); }
  75% { transform: translate(20px, 10px) scale(1.03); }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
}
.hero-badge {
  display: inline-block;
  padding: 0.6rem 1.8rem;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.12), rgba(0, 112, 212, 0.1));
  border: 1.5px solid rgba(0, 212, 255, 0.3);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--blue-deep);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 2rem;
  backdrop-filter: blur(10px);
  animation: fadeUp 0.8s ease-out forwards;
  opacity: 0;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 9vw, 7rem);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.05;
  margin-bottom: 1.5rem;
  animation: fadeUp 0.8s ease-out 0.2s forwards;
  opacity: 0;
  background: linear-gradient(135deg, var(--navy) 0%, var(--blue-deep) 50%, var(--blue-mid) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-title em {
  font-style: italic;
  background: linear-gradient(135deg, var(--blue-deep), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 1.2rem;
  color: var(--blue-deep);
  opacity: 0.65;
  max-width: 500px;
  margin: 0 auto 2.5rem;
  font-weight: 300;
  animation: fadeUp 0.8s ease-out 0.4s forwards;
  opacity: 0;
}
.hero-cta-group {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeUp 0.8s ease-out 0.6s forwards;
  opacity: 0;
}
.btn-primary {
  display: inline-block;
  padding: 1.1rem 2.8rem;
  background: linear-gradient(135deg, var(--blue-deep), var(--blue-vivid));
  color: var(--white);
  text-decoration: none;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: all 0.35s;
  box-shadow: 0 6px 30px rgba(0, 112, 212, 0.35);
  position: relative;
  overflow: hidden;
}
.btn-primary::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}
.btn-primary:hover::before { left: 100%; }
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 40px rgba(0, 112, 212, 0.45);
}
.btn-ghost {
  display: inline-block;
  padding: 1.1rem 2.8rem;
  background: transparent;
  color: var(--blue-deep);
  text-decoration: none;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  border: 2px solid var(--blue-soft);
  transition: all 0.35s;
  position: relative;
  overflow: hidden;
}
.btn-ghost:hover {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.08), rgba(0, 112, 212, 0.08));
  transform: translateY(-3px);
  border-color: var(--blue-mid);
  box-shadow: 0 8px 30px rgba(0, 112, 212, 0.15);
}

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}
.hero-badge, .hero-title, .hero-subtitle, .hero-cta-group {
  transform: translateY(30px);
}

/* Wave divider */
.wave-divider {
  width: 100%;
  overflow: hidden;
  line-height: 0;
}
.wave-divider svg {
  display: block;
  width: 100%;
  height: 80px;
}

/* SECTIONS */
section { position: relative; padding: 6rem 2rem; }
.section-container { max-width: 1100px; margin: 0 auto; }
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}
.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--navy);
  margin-bottom: 0.5rem;
}
.section-header p {
  color: var(--blue-mid);
  opacity: 0.7;
  font-size: 1rem;
  max-width: 500px;
  margin: 0 auto;
}

/* SERVICES */
.services-section {
  background: linear-gradient(180deg, var(--white) 0%, #eef7ff 50%, var(--sky-light) 100%);
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.service-card {
  background: var(--glass-bg);
  border: 1.5px solid var(--glass-border);
  border-radius: 24px;
  padding: 2.8rem 2rem;
  text-align: center;
  backdrop-filter: blur(12px);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--cyan), var(--blue-deep), var(--cyan));
  background-size: 200% 100%;
  border-radius: 24px 24px 0 0;
  transform: scaleX(0);
  transition: transform 0.4s;
}
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 25px 70px rgba(0, 112, 212, 0.15);
  border-color: rgba(0, 212, 255, 0.3);
}
.service-icon {
  width: 68px;
  height: 68px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(0, 112, 212, 0.12));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin: 0 auto 1.2rem;
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.service-card:hover .service-icon {
  transform: scale(1.15) rotate(-5deg);
}
.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--navy);
  margin-bottom: 0.5rem;
}
.service-card p {
  font-size: 0.88rem;
  color: var(--blue-deep);
  opacity: 0.6;
}

/* PORTFOLIO */
.portfolio-section {
  background: linear-gradient(180deg, var(--sky-light) 0%, #e8f6ff 50%, #f0faff 100%);
}
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.portfolio-item {
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  aspect-ratio: 4/3;
  cursor: pointer;
  transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s;
}
.portfolio-item:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 25px 60px rgba(0, 112, 212, 0.25);
}
.portfolio-item:nth-child(1) { background: linear-gradient(135deg, var(--cyan), var(--blue-deep)); }
.portfolio-item:nth-child(2) { background: linear-gradient(135deg, var(--blue-soft), var(--blue-vivid)); }
.portfolio-item:nth-child(3) { background: linear-gradient(135deg, var(--blue-mid), var(--navy)); }
.portfolio-item:nth-child(4) { background: linear-gradient(135deg, var(--blue-deep), var(--cyan)); }
.portfolio-item:nth-child(5) { background: linear-gradient(135deg, var(--cyan-light), var(--navy)); }
.portfolio-item:nth-child(6) { background: linear-gradient(135deg, var(--electric), var(--dark)); }
.portfolio-item::after {
  content: '';
  position: absolute;
  top: -30%;
  right: -20%;
  width: 160px;
  height: 160px;
  border: 2.5px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.portfolio-item:hover::after { transform: scale(1.3) translate(-10px, 10px); }
.portfolio-title {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2.4rem 1.6rem 1.4rem;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  background: linear-gradient(to top, rgba(10, 37, 64, 0.8), rgba(10, 37, 64, 0.05) 70%, transparent);
}
.portfolio-title h4 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--white);
}
.portfolio-title .photo-count {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--cyan);
  background: rgba(0, 212, 255, 0.15);
  border: 1px solid rgba(0, 212, 255, 0.3);
  padding: 0.3rem 0.9rem;
  border-radius: 50px;
  white-space: nowrap;
}
.portfolio-title .photo-count b {
  color: var(--white);
  font-weight: 600;
}
.portfolio-num {
  position: absolute;
  top: 1rem;
  left: 1rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  color: var(--navy);
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}
.portfolio-hint {
  display: block;
  text-align: center;
  margin-bottom: 2rem;
  font-size: 0.85rem;
  color: var(--blue-deep);
  opacity: 0.65;
}

/* PORTFOLIO MODAL */
.portfolio-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(6, 18, 32, 0.9);
  backdrop-filter: blur(8px);
}
.portfolio-modal.open { display: flex; }
.modal-card {
  position: relative;
  max-width: 960px;
  width: calc(100% - 3rem);
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  border-radius: 24px;
  overflow: hidden;
  background: linear-gradient(160deg, var(--navy), var(--dark));
  box-shadow: 0 30px 100px rgba(0, 0, 0, 0.5);
  animation: modalIn 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.85) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 1.8rem;
  border-bottom: 1px solid rgba(0, 212, 255, 0.15);
}
.modal-head h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--white);
}
.modal-counter {
  font-size: 0.85rem;
  color: var(--cyan);
  font-weight: 500;
}
.modal-close {
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.8rem;
  cursor: pointer;
  line-height: 1;
  opacity: 0.7;
  transition: opacity 0.3s, transform 0.3s;
}
.modal-close:hover { opacity: 1; transform: rotate(90deg); }
.modal-body {
  position: relative;
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: rgba(0, 0, 0, 0.35);
}
.modal-body img {
  max-width: 100%;
  max-height: 62vh;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}
.modal-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1.5px solid rgba(0, 212, 255, 0.3);
  background: rgba(10, 37, 64, 0.8);
  color: var(--cyan);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
  z-index: 3;
}
.modal-nav:hover {
  background: var(--blue-deep);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(0, 112, 212, 0.5);
}
.modal-prev { left: 0.8rem; }
.modal-next { right: 0.8rem; }
.modal-thumbs {
  display: flex;
  gap: 0.6rem;
  padding: 1rem 1.8rem;
  overflow-x: auto;
  border-top: 1px solid rgba(0, 212, 255, 0.12);
  background: rgba(10, 37, 64, 0.4);
}
.modal-thumbs::-webkit-scrollbar { height: 6px; }
.modal-thumbs::-webkit-scrollbar-thumb { background: rgba(0, 212, 255, 0.35); border-radius: 3px; }
.thumb {
  width: 76px;
  height: 76px;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
  cursor: pointer;
  border: 2px solid transparent;
  opacity: 0.6;
  transition: all 0.3s;
}
.thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.thumb:hover { opacity: 1; transform: translateY(-2px); }
.thumb.active { border-color: var(--cyan); opacity: 1; box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.2); }

@media (max-width: 768px) {
  .modal-prev { left: 0.3rem; }
  .modal-next { right: 0.3rem; }
  .modal-head { padding: 0.9rem 1.2rem; }
  .thumb { width: 60px; height: 60px; }
}

/* ABOUT */
.about-section {
  background: linear-gradient(180deg, var(--white) 0%, #eef7ff 50%, var(--sky-light) 100%);
}
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.about-text h3 {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--navy);
  margin-bottom: 1rem;
}
.about-text p {
  color: var(--blue-deep);
  opacity: 0.7;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}
.features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.feature-card {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 1.6rem;
  background: var(--glass-bg);
  border: 1.5px solid var(--glass-border);
  border-radius: 18px;
  backdrop-filter: blur(12px);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.feature-card:hover {
  transform: translateX(10px);
  box-shadow: 0 12px 40px rgba(0, 112, 212, 0.12);
  border-color: rgba(0, 212, 255, 0.3);
}
.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--cyan), var(--blue-deep));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
  box-shadow: 0 4px 16px rgba(0, 112, 212, 0.25);
}
.feature-card h4 {
  font-size: 0.95rem;
  color: var(--navy);
  margin-bottom: 0.2rem;
}
.feature-card p {
  font-size: 0.8rem;
  color: var(--blue-deep);
  opacity: 0.55;
}

/* TESTIMONIALS */
.testimonials-section {
  background: linear-gradient(180deg, #f0faff 0%, #e8f6ff 50%, var(--sky-light) 100%);
}
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.testimonial-card {
  background: var(--glass-bg);
  border: 1.5px solid var(--glass-border);
  border-radius: 22px;
  padding: 2.2rem 2rem;
  backdrop-filter: blur(12px);
  position: relative;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  display: flex;
  flex-direction: column;
}
.testimonial-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(0, 112, 212, 0.14);
  border-color: rgba(0, 212, 255, 0.3);
}
.testimonial-card::before {
  content: '“';
  position: absolute;
  top: 0.4rem;
  right: 1.4rem;
  font-family: var(--font-display);
  font-size: 5rem;
  line-height: 1;
  color: rgba(0, 212, 255, 0.15);
}
.testimonial-stars {
  color: #ffd166;
  font-size: 1rem;
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
}
.testimonial-text {
  font-size: 0.92rem;
  color: var(--blue-deep);
  opacity: 0.8;
  line-height: 1.7;
  flex: 1;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(0, 212, 255, 0.15);
}
.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), var(--blue-deep));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  color: var(--white);
  box-shadow: 0 4px 14px rgba(0, 112, 212, 0.25);
  flex-shrink: 0;
}
.testimonial-author .name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--navy);
}
.testimonial-author .company {
  font-size: 0.8rem;
  color: var(--blue-mid);
  opacity: 0.8;
}

/* CONTACTS */
.contacts-section {
  background: linear-gradient(180deg, var(--sky-light) 0%, #e8f6ff 50%, #f0faff 100%);
}
.contacts-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
}
.contact-info-cards {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.info-card {
  padding: 1.6rem;
  background: var(--glass-bg);
  border: 1.5px solid var(--glass-border);
  border-radius: 18px;
  backdrop-filter: blur(12px);
  transition: all 0.3s;
}
.info-card:hover {
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 8px 30px rgba(0, 112, 212, 0.08);
}
.info-card .label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--cyan);
  font-weight: 600;
  margin-bottom: 0.4rem;
}
.info-card p, .info-card a {
  color: var(--navy);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
}
.info-card a:hover { color: var(--blue-mid); }
.contact-form-card {
  background: var(--glass-bg);
  border: 1.5px solid var(--glass-border);
  border-radius: 24px;
  padding: 2.5rem;
  backdrop-filter: blur(12px);
  transition: border-color 0.3s;
}
.contact-form-card:hover {
  border-color: rgba(0, 212, 255, 0.25);
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.contact-form input,
.contact-form textarea {
  background: rgba(255,255,255,0.7);
  border: 1.5px solid rgba(91, 191, 255, 0.25);
  border-radius: 14px;
  padding: 0.95rem 1.2rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--dark);
  outline: none;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--blue-mid);
  box-shadow: 0 0 0 4px rgba(45, 160, 232, 0.12);
}
.contact-form textarea { min-height: 120px; resize: vertical; }
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: rgba(10, 37, 64, 0.3); }
.contact-form button {
  padding: 1.1rem;
  background: linear-gradient(135deg, var(--blue-deep), var(--blue-vivid));
  color: var(--white);
  border: none;
  border-radius: 14px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.35s;
  box-shadow: 0 6px 24px rgba(0, 112, 212, 0.25);
  position: relative;
  overflow: hidden;
}
.contact-form button::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transition: left 0.5s;
}
.contact-form button:hover::before { left: 100%; }
.contact-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 35px rgba(0, 112, 212, 0.35);
}

/* FOOTER */
.footer {
  background: linear-gradient(135deg, var(--navy) 0%, var(--dark) 100%);
  color: rgba(255, 255, 255, 0.45);
  text-align: center;
  padding: 2.5rem;
  font-size: 0.85rem;
  border-top: 1px solid rgba(0, 212, 255, 0.1);
}

/* MOBILE */
@media (max-width: 768px) {
  .header { padding: 1rem 1.5rem; }
  .header-nav { display: none; }
  .header-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(227, 243, 255, 0.97);
    backdrop-filter: blur(24px);
    padding: 1.5rem;
    gap: 1rem;
    border-bottom: 1px solid rgba(0, 212, 255, 0.15);
  }
  .burger { display: flex; }
  section { padding: 4rem 1.2rem; }
  .hero { padding: 5rem 1.2rem 3rem; }
  .hero-cta-group { flex-direction: column; align-items: stretch; }
  .hero-cta-group .btn-primary,
  .hero-cta-group .btn-ghost { width: 100%; text-align: center; }
  .services-grid { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .about-content { grid-template-columns: 1fr; gap: 2rem; }
  .contacts-grid { grid-template-columns: 1fr; }
  .contact-form-card { order: -1; padding: 1.8rem; }
}