/* === CSS Custom Properties === */
:root {
  --primary: #ec4899;
  --primary-dark: #db2777;
  --primary-light: #f472b6;
  --primary-50: #fdf2f8;
  --primary-100: #fce7f3;
  --primary-200: #fbcfe8;
  --accent: #a855f7;
  --accent-light: #c084fc;
  --gradient-1: linear-gradient(135deg, #ec4899, #a855f7);
  --gradient-2: linear-gradient(135deg, #db2777, #ec4899, #f472b6);
  --gradient-3: linear-gradient(45deg, #ec4899, #f472b6, #c084fc);
  --gradient-hero: linear-gradient(135deg, #be185d 0%, #ec4899 30%, #f472b6 60%, #a855f7 100%);
  --glass-bg: rgba(255, 255, 255, 0.12);
  --glass-border: rgba(255, 255, 255, 0.18);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  --card-bg: rgba(255, 255, 255, 0.75);
  --card-border: rgba(255, 255, 255, 0.25);
  --dark: #0f172a;
  --dark-2: #1e293b;
  --dark-3: #334155;
  --gray: #64748b;
  --gray-light: #94a3b8;
  --light: #f8fafc;
  --light-2: #f1f5f9;
  --white: #ffffff;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
  --radius-sm: 8px;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-slow: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --container: 1200px;
}

/* === Reset & Base === */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font);
  color: var(--dark-2);
  background: var(--light);
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
a.service-card { color: inherit; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--font); }
input, textarea { font-family: var(--font); outline: none; }

::selection { background: var(--primary); color: var(--white); }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--light-2); }
::-webkit-scrollbar-thumb { background: var(--gray-light); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--gray); }

/* === Container === */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* === Section styling === */
.section {
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--primary);
  background: var(--primary-50);
  padding: 6px 18px;
  border-radius: 50px;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--dark);
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-subtitle {
  font-size: 1.1rem;
  color: var(--gray);
  max-width: 600px;
  line-height: 1.8;
}
.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-header .section-subtitle { margin: 0 auto; }

/* === Navigation === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
  padding: 10px 0;
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}
.nav-logo span { font-weight: 300; -webkit-text-fill-color: var(--dark-3); }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--dark-3);
  position: relative;
  padding: 4px 0;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-1);
  transition: var(--transition);
}
.nav-links a:hover { color: var(--primary); }
.nav-links a:hover::after { width: 100%; }
.nav-cta {
  background: var(--gradient-1);
  color: var(--white) !important;
  padding: 10px 24px !important;
  border-radius: 50px;
  font-weight: 600 !important;
  font-size: 0.85rem !important;
  transition: var(--transition);
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(236, 72, 153, 0.35); }
.nav-cta::after { display: none !important; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  z-index: 1001;
}
.nav-toggle span {
  width: 26px;
  height: 2.5px;
  background: var(--dark);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; transform: translateX(-10px); }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* === Hero === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: var(--gradient-hero);
  overflow: hidden;
  padding-top: 80px;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../img/bg-hero.jpg') center/cover no-repeat;
  opacity: 0.15;
  mix-blend-mode: overlay;
  z-index: 0;
}
.hero::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(192, 132, 252, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 20s infinite ease-in-out;
  z-index: 1;
}
@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease;
}
.hero-badge i { color: var(--accent-light); }
.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 20px;
  animation: fadeInUp 0.8s ease;
}
.hero-title .gradient-text {
  background: linear-gradient(135deg, #f472b6, #c084fc, #e879f9);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.75);
  max-width: 540px;
  line-height: 1.8;
  margin-bottom: 32px;
  animation: fadeInUp 1s ease;
}
.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  animation: fadeInUp 1.2s ease;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.btn-primary {
  background: var(--white);
  color: var(--primary);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.3);
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
  transform: translateY(-3px);
}
.btn-glass {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--white);
}
.btn-glass:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-3px);
}
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  animation: fadeInUp 1.4s ease;
}
.hero-stat h3 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
}
.hero-stat p {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeInRight 1s ease;
}
.hero-card {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}
.hero-card-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: var(--gradient-1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--white);
  margin-bottom: 20px;
}
.hero-card h4 { color: var(--white); font-size: 1.2rem; margin-bottom: 8px; }
.hero-card p { color: rgba(255, 255, 255, 0.65); font-size: 0.9rem; line-height: 1.6; }
.hero-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.hero-card-tags span {
  background: rgba(255, 255, 255, 0.08);
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.floating-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  animation: float 6s ease-in-out infinite;
}
.floating-card:nth-child(1) { top: 10%; right: -10%; animation-delay: 0s; }
.floating-card:nth-child(2) { bottom: 15%; left: -10%; animation-delay: -2s; }
.floating-card:nth-child(3) { top: 40%; right: -15%; animation-delay: -4s; }
.floating-card i { font-size: 1.2rem; color: var(--accent-light); }
.floating-card span { font-size: 0.8rem; color: var(--white); font-weight: 500; }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

/* === About === */
#about {
  position: relative;
  background: var(--light);
}
#about::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../img/bg-about.jpg') center/cover no-repeat;
  opacity: 0.06;
  mix-blend-mode: soft-light;
  pointer-events: none;
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: center;
}
.about-image {
  position: relative;
}
.about-image-placeholder {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  background: var(--gradient-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  color: rgba(255, 255, 255, 0.3);
  position: relative;
  overflow: hidden;
}
.about-image-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.08) 100%);
}
.about-image-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius);
  padding: 16px 24px;
  box-shadow: var(--shadow-lg);
}
.about-image-badge h4 { font-size: 1.3rem; color: var(--primary); font-weight: 800; }
.about-image-badge p { font-size: 0.8rem; color: var(--gray); }
.about-content h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 800; color: var(--dark); margin-bottom: 16px; }
.about-content h2 span { background: var(--gradient-1); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.about-content p { color: var(--gray); margin-bottom: 16px; line-height: 1.8; }
.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 24px 0;
}
.about-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--dark-2);
}
.about-feature i { color: var(--primary); font-size: 0.85rem; }

/* === Skills === */
#skills {
  position: relative;
}
#skills::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../img/bg-about.jpg') center/cover no-repeat;
  opacity: 0.04;
  mix-blend-mode: soft-light;
  pointer-events: none;
}
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.skill-card {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.skill-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-200);
}
.skill-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.skill-header h4 { font-size: 1rem; font-weight: 600; color: var(--dark); }
.skill-header span { font-size: 0.85rem; font-weight: 700; color: var(--primary); }
.skill-bar {
  width: 100%;
  height: 8px;
  background: var(--light-2);
  border-radius: 10px;
  overflow: hidden;
}
.skill-bar-fill {
  height: 100%;
  background: var(--gradient-1);
  border-radius: 10px;
  transition: width 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  width: 0;
}

/* === Services / Expertise === */
#services {
  position: relative;
}
#services::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../img/bg-services.jpg') center/cover no-repeat;
  opacity: 0.05;
  mix-blend-mode: soft-light;
  pointer-events: none;
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.service-card {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-1);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}
.service-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--primary-50);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--primary);
  margin-bottom: 18px;
  transition: var(--transition);
}
.service-card:hover .service-icon {
  background: var(--gradient-1);
  color: var(--white);
  transform: scale(1.05);
}
.service-card h3 { font-size: 1.15rem; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.service-card p { font-size: 0.9rem; color: var(--gray); line-height: 1.7; }
.service-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 16px;
}
.service-tools span {
  font-size: 0.7rem;
  padding: 4px 12px;
  border-radius: 50px;
  background: var(--light-2);
  color: var(--dark-3);
  font-weight: 500;
}
.service-stat {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 600;
}
.service-stat i { font-size: 0.75rem; }

/* === Service Pages Backgrounds === */
.service-page-hero { position: relative; }
.service-page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../img/bg-hero.jpg') center/cover no-repeat;
  opacity: 0.08;
  mix-blend-mode: overlay;
  pointer-events: none;
}
.service-detail-section { position: relative; }
.service-detail-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../img/bg-about.jpg') center/cover no-repeat;
  opacity: 0.04;
  mix-blend-mode: soft-light;
  pointer-events: none;
}
.service-tools-section { position: relative; }
.service-tools-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../img/bg-services.jpg') center/cover no-repeat;
  opacity: 0.04;
  mix-blend-mode: soft-light;
  pointer-events: none;
}
.service-cta-section { position: relative; }
.service-cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../img/bg-contact.jpg') center/cover no-repeat;
  opacity: 0.04;
  mix-blend-mode: soft-light;
  pointer-events: none;
}

/* === Projects & Certifications Backgrounds === */
#projects { position: relative; }
#projects::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../img/bg-services.jpg') center/cover no-repeat;
  opacity: 0.04;
  mix-blend-mode: soft-light;
  pointer-events: none;
}
#certifications { position: relative; }
#certifications::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../img/bg-contact.jpg') center/cover no-repeat;
  opacity: 0.04;
  mix-blend-mode: soft-light;
  pointer-events: none;
}

/* === Projects === */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}
.project-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--white);
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid rgba(0, 0, 0, 0.04);
}
.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}
.project-image {
  height: 200px;
  background: var(--gradient-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}
.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  transition: var(--transition-slow);
}
.project-card:hover .project-image img { transform: scale(1.08); }
.project-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 50%, rgba(15, 59, 140, 0.3));
  z-index: 1;
}
.project-tag {
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.7rem;
  color: var(--white);
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.1);
  z-index: 1;
}
.project-content { padding: 24px; }
.project-content h3 { font-size: 1.15rem; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.project-content p { font-size: 0.9rem; color: var(--gray); line-height: 1.7; margin-bottom: 16px; }
.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.project-tech span {
  font-size: 0.72rem;
  padding: 4px 12px;
  border-radius: 50px;
  background: var(--primary-50);
  color: var(--primary);
  font-weight: 500;
}

/* === Certifications === */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.cert-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: var(--transition);
  display: flex;
  align-items: flex-start;
  gap: 18px;
}
.cert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.cert-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: 12px;
  background: var(--primary-50);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--primary);
}
.cert-info h4 { font-size: 0.95rem; font-weight: 600; color: var(--dark); margin-bottom: 4px; }
.cert-info p { font-size: 0.82rem; color: var(--gray); }
.cert-info .cert-date { font-size: 0.75rem; color: var(--primary-light); font-weight: 500; margin-top: 6px; }

/* === Testimonials Slider === */
#testimonials {
  position: relative;
}
#testimonials::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../img/bg-services.jpg') center/cover no-repeat;
  opacity: 0.04;
  mix-blend-mode: soft-light;
  pointer-events: none;
}
.testimonials-slider {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
  overflow: hidden;
}
.testimonials-track {
  display: flex;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.testimonial-slide {
  min-width: 100%;
  padding: 0 8px;
}
.testimonial-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: var(--transition);
  position: relative;
  margin: 0 4px;
}
.testimonial-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}
.testimonial-card::before {
  content: '\201C';
  position: absolute;
  top: 16px;
  right: 28px;
  font-size: 5rem;
  line-height: 1;
  color: var(--primary-100);
  font-family: Georgia, serif;
}
.testimonial-stars {
  color: #f59e0b;
  font-size: 0.85rem;
  margin-bottom: 16px;
}
.testimonial-text {
  font-size: 0.95rem;
  color: var(--dark-3);
  line-height: 1.8;
  margin-bottom: 20px;
  font-style: italic;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}
.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1.1rem;
}
.testimonial-name { font-size: 0.95rem; font-weight: 600; color: var(--dark); }
.testimonial-role { font-size: 0.8rem; color: var(--gray); }

/* === Contact === */
#contact {
  position: relative;
}
#contact::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../img/bg-contact.jpg') center/cover no-repeat;
  opacity: 0.05;
  mix-blend-mode: soft-light;
  pointer-events: none;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
}
.contact-info h3 { font-size: 1.5rem; font-weight: 700; color: var(--dark); margin-bottom: 16px; }
.contact-info > p { color: var(--gray); margin-bottom: 32px; line-height: 1.8; }
.contact-details { display: flex; flex-direction: column; gap: 20px; }
.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
}
.contact-item-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: 12px;
  background: var(--primary-50);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--primary);
}
.contact-item h4 { font-size: 0.9rem; font-weight: 600; color: var(--dark); }
.contact-item p, .contact-item a { font-size: 0.85rem; color: var(--gray); }
.contact-item a:hover { color: var(--primary); }
.contact-ctas {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 32px;
}
.contact-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  backdrop-filter: blur(12px);
}
.contact-cta:hover {
  transform: translateX(6px);
  border-color: var(--primary-200);
  background: var(--primary-50);
}
.contact-cta i { color: var(--primary); font-size: 1.1rem; }
.contact-form {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow);
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--dark-2);
  margin-bottom: 6px;
}
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--light-2);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  background: var(--white);
  transition: var(--transition);
  color: var(--dark-2);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  border-color: var(--primary-light);
  box-shadow: 0 0 0 4px var(--primary-100);
}
.form-group textarea { min-height: 140px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.btn-submit {
  width: 100%;
  padding: 16px;
  background: var(--gradient-1);
  color: var(--white);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 700;
  transition: var(--transition);
}
.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(236, 72, 153, 0.35);
}

/* === Footer === */
.footer {
  background: var(--dark);
  color: var(--white);
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand h3 {
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient-3);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}
.footer-brand p { color: var(--gray-light); font-size: 0.9rem; line-height: 1.7; max-width: 300px; }
.footer-col h4 { font-size: 1rem; font-weight: 600; margin-bottom: 20px; color: var(--white); }
.footer-col a {
  display: block;
  font-size: 0.88rem;
  color: var(--gray-light);
  margin-bottom: 10px;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--primary-light); transform: translateX(4px); }
.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}
.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-light);
  transition: var(--transition);
}
.footer-social a:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  transform: translateY(-3px);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { font-size: 0.85rem; color: var(--gray-light); }

/* === Slider Navigation === */
.slider-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
}
.slider-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--light-2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dark-3);
  font-size: 1rem;
  transition: var(--transition);
  cursor: pointer;
}
.slider-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}
.slider-dots {
  display: flex;
  gap: 8px;
}
.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--light-2);
  border: none;
  cursor: pointer;
  transition: var(--transition);
}
.slider-dot.active {
  background: var(--primary);
  width: 28px;
  border-radius: 5px;
}

/* === WhatsApp Button === */
.whatsapp-btn {
  position: fixed;
  bottom: 30px;
  left: 30px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25d366;
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: var(--transition);
  animation: pulse-whatsapp 2s infinite;
}
.whatsapp-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
  color: var(--white);
}
@keyframes pulse-whatsapp {
  0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.7); }
}
.whatsapp-tooltip {
  position: absolute;
  left: 66px;
  background: var(--white);
  color: var(--dark-2);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}
.whatsapp-btn:hover .whatsapp-tooltip {
  opacity: 1;
  visibility: visible;
}

/* === About Image Real Photo === */
.about-image-photo {
  width: 100%;
  aspect-ratio: 3/4;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  background: var(--primary-50);
}
.about-image-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  transform: scale(1.2);
  transition: var(--transition-slow);
  display: block;
}
.about-image-photo:hover img { transform: scale(1.35); }

/* === Glass Divider === */
.glass-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary-200), transparent);
  margin: 0;
  opacity: 0.5;
}

/* === Back to Top === */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-1);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 4px 20px rgba(236, 72, 153, 0.3);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(236, 72, 153, 0.4);
}

/* === Responsive === */
@media (max-width: 1024px) {
  .hero-grid { gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .floating-card { display: none; }
}

@media (max-width: 768px) {
  .whatsapp-btn { width: 48px; height: 48px; font-size: 1.3rem; bottom: 20px; left: 20px; }
  .whatsapp-tooltip { display: none; }
  .section { padding: 70px 0; }
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 75%;
    max-width: 320px;
    height: 100vh;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    padding: 40px;
    gap: 24px;
    transition: var(--transition);
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.1);
  }
  .nav-links.active { right: 0; }
  .nav-toggle { display: flex; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; text-align: center; }
  .hero-desc { margin-left: auto; margin-right: auto; }
  .hero-buttons { justify-content: center; }
  .hero-stats { justify-content: center; flex-wrap: wrap; gap: 24px; }
  .hero-visual { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-image { max-width: 300px; margin: 0 auto; }
  .about-features { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .services-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .certs-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 2rem; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; }
  .section-title { font-size: 1.6rem; }
  .contact-form { padding: 24px; }
  .service-card { padding: 24px; }
  .project-card .project-content { padding: 18px; }
}