:root {
  --bg-main: #070b18;
  --bg-soft: #0d1326;
  --bg-card: rgba(255, 255, 255, 0.07);
  --primary: #5eead4;
  --secondary: #60a5fa;
  --accent: #f97316;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --border: rgba(255, 255, 255, 0.12);
  --shadow: 0 25px 80px rgba(0, 0, 0, 0.35);
  --radius: 24px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(96, 165, 250, 0.16), transparent 35%),
    radial-gradient(circle at top right, rgba(94, 234, 212, 0.12), transparent 35%),
    var(--bg-main);
  color: var(--text-main);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
}

.section-padding {
  padding: 110px 0;
}

.section-title span {
  display: inline-flex;
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.82rem;
  margin-bottom: 14px;
}

.section-title h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  line-height: 1.14;
  color: var(--text-main);
}

#preloader {
  position: fixed;
  inset: 0;
  background: #050816;
  z-index: 99999;
  display: grid;
  place-items: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

#preloader.hide {
  opacity: 0;
  visibility: hidden;
}

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

.loader-ring {
  width: 76px;
  height: 76px;
  border: 5px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--primary);
  border-right-color: var(--secondary);
  border-radius: 50%;
  margin: 0 auto 20px;
  animation: spin 1s linear infinite;
}

.loader-box h2 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 6px;
}

.loader-box p {
  color: var(--text-muted);
  margin: 0;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.custom-navbar {
  padding: 18px 0;
  background: rgba(7, 11, 24, 0.68);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid transparent;
  transition: 0.35s ease;
}

.custom-navbar.scrolled {
  padding: 12px 0;
  border-bottom-color: var(--border);
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.22);
}

.navbar-brand {
  color: var(--text-main);
  font-size: 1.45rem;
  font-weight: 800;
}

.navbar-brand span {
  color: var(--primary);
}

.navbar-brand strong {
  color: var(--secondary);
}

.navbar-brand:hover {
  color: var(--text-main);
}

.navbar-toggler {
  color: var(--text-main);
  font-size: 1.6rem;
}

.nav-link {
  color: var(--text-muted);
  font-weight: 600;
  margin: 0 5px;
  transition: 0.25s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}

.nav-btn,
.primary-btn,
.secondary-btn {
  border-radius: 999px;
  padding: 12px 24px;
  font-weight: 700;
  transition: 0.3s ease;
}

.nav-btn,
.primary-btn {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #06111f;
  border: 0;
  box-shadow: 0 12px 30px rgba(94, 234, 212, 0.22);
}

.nav-btn:hover,
.primary-btn:hover {
  transform: translateY(-3px);
  color: #06111f;
  box-shadow: 0 18px 40px rgba(96, 165, 250, 0.32);
}

.secondary-btn {
  color: var(--text-main);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
}

.secondary-btn:hover {
  color: var(--primary);
  border-color: var(--primary);
  transform: translateY(-3px);
}

.hero-section {
  position: relative;
  overflow: hidden;
  padding-top: 70px;
}

.hero-glow {
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  pointer-events: none;
}

.glow-one {
  background: var(--secondary);
  top: 12%;
  left: -180px;
}

.glow-two {
  background: var(--primary);
  bottom: 5%;
  right: -180px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--primary);
  background: rgba(94, 234, 212, 0.09);
  border: 1px solid rgba(94, 234, 212, 0.22);
  padding: 10px 16px;
  border-radius: 999px;
  font-weight: 700;
  margin-bottom: 24px;
}

.hero-content h1 {
  font-size: clamp(2.7rem, 6vw, 5.6rem);
  line-height: 1;
  font-weight: 900;
  letter-spacing: -0.055em;
  margin-bottom: 24px;
}

.hero-content h1 span {
  background: linear-gradient(135deg, var(--primary), var(--secondary), #fff);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-content p {
  color: var(--text-muted);
  font-size: 1.12rem;
  line-height: 1.8;
  max-width: 620px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 34px;
}

.hero-stats {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 42px;
}

.hero-stats div {
  min-width: 135px;
  padding: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 18px;
}

.hero-stats h3 {
  color: var(--primary);
  font-size: 1.35rem;
  font-weight: 900;
  margin: 0;
}

.hero-stats p {
  margin: 4px 0 0;
  font-size: 0.88rem;
}

.hero-image-wrap {
  position: relative;
  max-width: 530px;
  margin: 0 auto;
}

.hero-image {
  border-radius: 34px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transform: rotate(1.5deg);
  background: rgba(255, 255, 255, 0.04);
}

.hero-image img {
  width: 100%;
  min-height: 600px;
  object-fit: cover;
  object-position: center;
}

.hero-card {
  position: absolute;
  z-index: 2;
  background: rgba(13, 19, 38, 0.88);
  border: 1px solid var(--border);
  color: var(--text-main);
  padding: 13px 18px;
  border-radius: 999px;
  font-weight: 800;
  box-shadow: var(--shadow);
  backdrop-filter: blur(15px);
}

.hero-card i {
  color: var(--primary);
  margin-right: 7px;
}

.card-one {
  top: 10%;
  left: -25px;
}

.card-two {
  top: 44%;
  right: -35px;
}

.card-three {
  bottom: 9%;
  left: 18px;
}

.floating-card {
  animation: float 4s ease-in-out infinite;
}

.card-two {
  animation-delay: 0.9s;
}

.card-three {
  animation-delay: 1.4s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-14px);
  }
}

.about-section {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent);
}

.about-image {
  position: relative;
  border-radius: 32px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.about-image img {
  width: 100%;
  min-height: 550px;
  object-fit: cover;
  object-position: center;
}

.experience-badge {
  position: absolute;
  right: 22px;
  bottom: 22px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #06111f;
  padding: 18px 22px;
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.experience-badge strong,
.experience-badge span {
  display: block;
  font-weight: 900;
}

.about-text {
  color: var(--text-muted);
  line-height: 1.85;
  font-size: 1.05rem;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 28px;
}

.about-item {
  display: flex;
  gap: 15px;
  padding: 20px;
  border-radius: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
}

.about-item i {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: rgba(94, 234, 212, 0.1);
  color: var(--primary);
  font-size: 1.25rem;
  flex: 0 0 auto;
}

.about-item h4 {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.about-item p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.stack-section {
  background: rgba(255, 255, 255, 0.02);
}

.stack-card,
.service-card,
.project-card,
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.18);
}

.stack-card {
  padding: 32px 20px;
  text-align: center;
  transition: 0.3s ease;
  height: 100%;
}

.stack-card:hover {
  transform: translateY(-10px);
  border-color: rgba(94, 234, 212, 0.45);
  background: rgba(94, 234, 212, 0.075);
}

.stack-card i {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 16px;
}

.stack-card h4 {
  font-size: 1.05rem;
  margin: 0;
  font-weight: 800;
}

.service-card {
  padding: 34px;
  height: 100%;
  transition: 0.3s ease;
}

.service-card:hover,
.project-card:hover {
  transform: translateY(-10px);
  border-color: rgba(96, 165, 250, 0.45);
}

.service-icon {
  width: 62px;
  height: 62px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(94, 234, 212, 0.16), rgba(96, 165, 250, 0.16));
  color: var(--primary);
  font-size: 1.6rem;
  margin-bottom: 22px;
}

.service-card h3,
.project-card h3 {
  font-size: 1.28rem;
  font-weight: 850;
  margin-bottom: 14px;
}

.service-card p,
.project-card p {
  color: var(--text-muted);
  line-height: 1.75;
  margin: 0;
}

.projects-section {
  background: rgba(255, 255, 255, 0.02);
}

.project-card {
  overflow: hidden;
  height: 100%;
  transition: 0.3s ease;
}

.project-image {
  height: 220px;
  display: grid;
  place-items: center;
  font-size: 4rem;
  color: white;
}

.gradient-one {
  background: linear-gradient(135deg, #14b8a6, #2563eb);
}

.gradient-two {
  background: linear-gradient(135deg, #f97316, #ec4899);
}

.gradient-three {
  background: linear-gradient(135deg, #8b5cf6, #06b6d4);
}

.project-body {
  padding: 28px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 20px;
}

.project-tags span {
  color: var(--primary);
  background: rgba(94, 234, 212, 0.09);
  border: 1px solid rgba(94, 234, 212, 0.22);
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
}

.project-note {
  max-width: 760px;
  margin: 40px auto 0;
  padding: 22px;
  text-align: center;
  border-radius: 20px;
  background: rgba(96, 165, 250, 0.08);
  border: 1px solid rgba(96, 165, 250, 0.18);
}

.project-note p {
  margin: 0;
  color: var(--text-muted);
}

.process-section {
  position: relative;
}

.timeline {
  max-width: 860px;
  margin-inline: auto;
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(var(--primary), var(--secondary));
}

.timeline-item {
  position: relative;
  padding-left: 60px;
  margin-bottom: 30px;
}

.timeline-dot {
  position: absolute;
  left: 5px;
  top: 20px;
  width: 24px;
  height: 24px;
  background: var(--primary);
  border-radius: 50%;
  border: 5px solid var(--bg-main);
  box-shadow: 0 0 0 5px rgba(94, 234, 212, 0.12);
}

.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 26px;
}

.timeline-content h3 {
  font-size: 1.2rem;
  font-weight: 850;
  margin-bottom: 10px;
}

.timeline-content p {
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0;
}

.contact-section {
  background:
    radial-gradient(circle at bottom left, rgba(94, 234, 212, 0.08), transparent 35%),
    rgba(255, 255, 255, 0.02);
}

.contact-text {
  color: var(--text-muted);
  line-height: 1.8;
  font-size: 1.05rem;
}

.contact-info {
  display: grid;
  gap: 16px;
  margin-top: 30px;
}

.contact-info div {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--text-muted);
}

.contact-info i {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  background: rgba(94, 234, 212, 0.1);
  color: var(--primary);
}

.social-links {
  display: flex;
  gap: 12px;
  margin-top: 30px;
}

.social-links a {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  color: var(--text-main);
  border: 1px solid var(--border);
  background: var(--bg-card);
  border-radius: 50%;
  transition: 0.3s ease;
}

.social-links a:hover {
  color: #06111f;
  background: var(--primary);
  transform: translateY(-5px);
}

.contact-form {
  padding: 34px;
}

.contact-form label {
  color: var(--text-main);
  font-weight: 700;
  margin-bottom: 8px;
}

.form-control {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  color: var(--text-main);
  padding: 14px 16px;
  border-radius: 15px;
}

.form-control:focus {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  border-color: var(--primary);
  box-shadow: 0 0 0 0.25rem rgba(94, 234, 212, 0.12);
}

.form-control::placeholder {
  color: rgba(148, 163, 184, 0.7);
}

.form-status {
  margin: 0;
  color: var(--primary);
  font-weight: 700;
  text-align: center;
  min-height: 24px;
}

.footer {
  padding: 28px 0;
  border-top: 1px solid var(--border);
  background: rgba(7, 11, 24, 0.8);
}

.footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer p {
  margin: 0;
  color: var(--text-muted);
}

.back-to-top {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: #06111f;
  background: var(--primary);
  border-radius: 50%;
}

#scrollTopBtn {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 46px;
  height: 46px;
  border: 0;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #06111f;
  display: grid;
  place-items: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: 0.3s ease;
  z-index: 99;
}

#scrollTopBtn.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.delay-1 {
  transition-delay: 0.12s;
}

.delay-2 {
  transition-delay: 0.24s;
}

.delay-3 {
  transition-delay: 0.36s;
}

.delay-4 {
  transition-delay: 0.48s;
}

@media (max-width: 991px) {
  .custom-navbar {
    background: rgba(7, 11, 24, 0.94);
  }

  .navbar-collapse {
    padding: 20px 0;
  }

  .nav-link {
    padding: 12px 0;
  }

  .hero-section {
    padding-top: 105px;
  }

  .hero-image img {
    min-height: 520px;
  }

  .card-one {
    left: 8px;
  }

  .card-two {
    right: 8px;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 575px) {
  .section-padding {
    padding: 80px 0;
  }

  .hero-content h1 {
    font-size: 2.65rem;
  }

  .hero-content p {
    font-size: 1rem;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .hero-stats div {
    width: 100%;
  }

  .hero-image img,
  .about-image img {
    min-height: 420px;
  }

  .hero-card {
    font-size: 0.78rem;
    padding: 10px 13px;
  }

  .contact-form {
    padding: 24px;
  }

  .footer .container {
    flex-direction: column;
    text-align: center;
  }
}