:root {
  --navy: #0a192f;
  --deep-blue: #112d4e;
  --accent-blue: #3f72af;
  --ice-blue: #dbe2ef;
  --white: #f9f9f9;
  --text-dark: #1d2733;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Montserrat", sans-serif;
  color: var(--text-dark);
  background: var(--white);
}

/* NAVBAR */
.custom-navbar {
  background: rgba(10, 25, 47, 0.85);
  backdrop-filter: blur(14px);
  padding: 18px 0;
}

.navbar-brand {
  font-family: "Oswald", sans-serif;
  color: var(--white);
  font-size: 1.5rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.navbar-brand:hover {
  color: var(--ice-blue);
}

.nav-link {
  color: var(--ice-blue);
  font-weight: 500;
}

.nav-link:hover {
  color: var(--white);
}

.nav-cta {
  border: 1px solid var(--accent-blue);
  border-radius: 30px;
  padding: 8px 18px !important;
}

/* HERO */
.hero-section {
  min-height: 100vh;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  background:
    radial-gradient(circle at 20% 20%, rgba(63, 114, 175, 0.45), transparent 28%),
    radial-gradient(circle at 85% 40%, rgba(219, 226, 239, 0.18), transparent 25%),
    linear-gradient(135deg, #07111f, #0a192f, #112d4e, #06101d);
  background-size: 200% 200%;
  animation: heroGradient 10s ease infinite;
}

.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, transparent 0%, rgba(255,255,255,0.06) 50%, transparent 100%);
  transform: translateX(-100%);
  animation: lightSweep 5s ease-in-out infinite;
}

.hero-section::after {
  content: "";
  position: absolute;
  width: 800px;
  height: 250px;
  left: 50%;
  bottom: 8%;
  transform: translateX(-50%);
  background: rgba(219, 226, 239, 0.08);
  border: 1px solid rgba(219, 226, 239, 0.12);
  border-radius: 50%;
  filter: blur(4px);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.65;
}

.hero-glow-one {
  width: 350px;
  height: 350px;
  background: var(--accent-blue);
  top: 18%;
  left: 8%;
  animation: floatGlow 7s ease-in-out infinite;
}

.hero-glow-two {
  width: 300px;
  height: 300px;
  background: var(--ice-blue);
  right: 10%;
  bottom: 18%;
  opacity: 0.25;
  animation: floatGlow 9s ease-in-out infinite reverse;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 850px;
  color: var(--white);
}

.hero-label,
.section-label {
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--accent-blue);
  font-weight: 700;
  font-size: 0.85rem;
}

.hero-title {
  font-family: "Oswald", sans-serif;
  font-size: clamp(3.5rem, 9vw, 7.5rem);
  line-height: 0.95;
  text-transform: uppercase;
  margin: 20px 0;
  animation: titleReveal 1.2s ease forwards;
}

.hero-title span {
  display: inline-block;
  background: linear-gradient(
    90deg,
    var(--white),
    var(--ice-blue),
    var(--accent-blue),
    var(--white)
  );
  background-size: 250%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 3s linear infinite;
}

.hero-subtitle {
  max-width: 650px;
  color: var(--ice-blue);
  font-size: 1.1rem;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 32px;
}

/* BUTTONS */
.btn-primary-custom,
.btn-outline-custom {
  border-radius: 50px;
  padding: 13px 28px;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.btn-primary-custom {
  background: var(--accent-blue);
  color: var(--white);
  border: 1px solid var(--accent-blue);
  box-shadow: 0 0 30px rgba(63, 114, 175, 0.45);
}

.btn-primary-custom:hover {
  background: var(--ice-blue);
  color: var(--navy);
  border-color: var(--ice-blue);
}

.btn-outline-custom {
  background: transparent;
  color: var(--ice-blue);
  border: 1px solid rgba(219, 226, 239, 0.6);
}

.btn-outline-custom:hover {
  background: var(--white);
  color: var(--navy);
}

/* SECTIONS */
.section-padding {
  padding: 100px 0;
}

.section-heading h2,
#about h2 {
  font-family: "Oswald", sans-serif;
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  color: var(--navy);
  text-transform: uppercase;
}

.section-heading p {
  max-width: 650px;
  margin: 0 auto;
  color: #5d6b7a;
}

/* SERVICES */
.service-card {
  height: 100%;
  padding: 32px;
  border-radius: 24px;
  background: linear-gradient(180deg, #ffffff, #eef3f9);
  border: 1px solid rgba(17, 45, 78, 0.08);
  box-shadow: 0 20px 50px rgba(10, 25, 47, 0.08);
  transition: 0.3s ease;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 25px 70px rgba(10, 25, 47, 0.16);
}

.service-card h4 {
  font-family: "Oswald", sans-serif;
  color: var(--deep-blue);
  text-transform: uppercase;
}

.service-card p {
  color: #5d6b7a;
  line-height: 1.7;
}

/* GALLERY */
.gallery-section {
  background: var(--ice-blue);
}

.gallery-img {
  width: 100%;
  height: 330px;
  object-fit: cover;
  border-radius: 24px;
  box-shadow: 0 20px 45px rgba(10, 25, 47, 0.18);
  transition: 0.3s ease;
}

.gallery-img:hover {
  transform: scale(1.03);
}

/* ABOUT */
#about p {
  color: #5d6b7a;
  line-height: 1.8;
}

.about-box {
  background: var(--navy);
  color: var(--white);
  border-radius: 28px;
  padding: 40px;
  box-shadow: 0 25px 60px rgba(10, 25, 47, 0.25);
}

.about-box h3 {
  font-family: "Oswald", sans-serif;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.about-box ul {
  list-style: none;
  padding: 0;
}

.about-box li {
  padding: 12px 0;
  border-bottom: 1px solid rgba(219, 226, 239, 0.18);
}

.about-box li::before {
  content: "✓";
  color: var(--accent-blue);
  margin-right: 10px;
  font-weight: 800;
}

/* BOOKING */
.booking-section {
  background:
    linear-gradient(rgba(10, 25, 47, 0.92), rgba(10, 25, 47, 0.94)),
    url("https://images.unsplash.com/photo-1542362567-b07e54358753?auto=format&fit=crop&w=1600&q=80");
  background-size: cover;
  background-position: center;
  color: var(--white);
}

.booking-section h2 {
  color: var(--white);
}

.booking-section .section-heading p {
  color: var(--ice-blue);
}

.booking-form {
  max-width: 850px;
  margin: 0 auto;
  background: rgba(249, 249, 249, 0.08);
  border: 1px solid rgba(219, 226, 239, 0.15);
  backdrop-filter: blur(12px);
  padding: 35px;
  border-radius: 28px;
}

.form-control {
  border-radius: 16px;
  padding: 14px 16px;
  border: 1px solid rgba(219, 226, 239, 0.3);
}

.form-control:focus {
  box-shadow: 0 0 0 0.2rem rgba(63, 114, 175, 0.25);
  border-color: var(--accent-blue);
}

/* FOOTER */
.footer {
  background: #06101d;
  color: var(--ice-blue);
  padding: 45px 0;
}

.footer h4 {
  font-family: "Oswald", sans-serif;
  text-transform: uppercase;
  color: var(--white);
}

.footer-small {
  font-size: 0.85rem;
  opacity: 0.7;
}

/* JS ANIMATIONS */
.navbar-scrolled {
  padding: 12px 0;
  background: rgba(6, 16, 29, 0.96);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.hidden-element {
  opacity: 0;
  transform: translateY(35px);
}

.show-element {
  opacity: 1;
  transform: translateY(0);
  transition: 0.8s ease;
}

/* ANIMATIONS */
@keyframes heroGradient {
  0% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0% 50%;
  }
}

@keyframes shimmer {
  0% {
    background-position: 0%;
  }

  100% {
    background-position: 250%;
  }
}

@keyframes lightSweep {
  0% {
    transform: translateX(-100%);
  }

  45%, 100% {
    transform: translateX(100%);
  }
}

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

  50% {
    transform: translateY(-28px);
  }
}

@keyframes titleReveal {
  from {
    opacity: 0;
    transform: translateY(35px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero-content {
    text-align: center;
  }

  .hero-buttons {
    justify-content: center;
  }

  .section-padding {
    padding: 75px 0;
  }

  .booking-form {
    padding: 24px;
  }
}