/* ============================================
   CSS Variables - Premium Design System
   ============================================ */
:root {
  /* Colors - Dark Ocean Theme */
  --bg-deep: #061826;
  --bg-dark: #0A2236;
  --bg-card: #0F2D46;
  --accent-primary: #15D5FF;
  --accent-secondary: #7DEBFF;
  --text-heading: #E6F7FF;
  --text-body: #B6D9E6;
  --text-muted: #7FB8CC;
  --ocean: #15D5FF;
  --ocean-light: #7DEBFF;
  --ocean-dark: #0F9BC4;
  --text: #B6D9E6;
  --muted: #7FB8CC;
  --ssi-accent: #15D5FF;
  --ssi-accent-dark: #0F9BC4;

  /* Typography */
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --font-heading: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;

  /* Spacing (8px grid) */
  --space-xs: 0.5rem;
  /* 8px */
  --space-sm: 1rem;
  /* 16px */
  --space-md: 1.5rem;
  /* 24px */
  --space-lg: 2rem;
  /* 32px */
  --space-xl: 3rem;
  /* 48px */
  --space-2xl: 4rem;
  /* 64px */
  --space-3xl: 6rem;
  /* 96px */

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 24px rgba(21, 213, 255, 0.3);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ============================================
   Reset & Base Styles
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-body);
  background-color: var(--bg-deep);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Typography
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-heading);
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  text-align: center;
  margin-bottom: var(--space-2xl);
  background: linear-gradient(135deg, var(--text-heading) 0%, var(--accent-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================
   Container
   ============================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-xl);
  }
}

/* ============================================
   Header
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-md) 0;
  background: transparent;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.header.scrolled {
  background: rgba(6, 24, 38, 0.95);
  backdrop-filter: blur(15px);
  padding: var(--space-xs) 0;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header__container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: transform var(--transition-base);
}

.header__logo:hover {
  transform: scale(1.02);
}

.header__logo-img {
  height: 60px;
  width: auto;
  object-fit: contain;
  filter: brightness(1.1);
  transition: height 0.4s ease;
}

.header.scrolled .header__logo-img {
  height: 40px;
}

.header__nav {
  display: none;
  align-items: center;
  gap: var(--space-xl);
}

@media (min-width: 1024px) {
  .header__nav {
    display: flex;
  }
}

.header__nav-link {
  color: #ffffff;
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  opacity: 0.8;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 6px;
}

.header__nav-link:hover,
.header__nav-link.active {
  opacity: 1;
  color: var(--accent-primary);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.header__language {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header__language-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 0;
  background: transparent;
  border: none;
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  opacity: 0.5;
}

.header__language-btn.active {
  color: var(--accent-primary);
  opacity: 1;
}

.header__nav-icon {
  transition: transform var(--transition-base);
  opacity: 0.7;
}

.header__nav-item:hover .header__nav-icon {
  transform: rotate(180deg);
  color: var(--accent-primary);
  opacity: 1;
}

/* Submenu / Dropdown Styles */
.header__nav-item {
  position: relative;
  display: flex;
  align-items: center;
}

.header__submenu {
  position: absolute;
  top: 150%;
  left: 0 !important;
  transform: translateY(10px) !important;
  background: var(--bg-deep);
  min-width: 260px;
  padding: var(--space-sm) 0;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-top: 2px solid var(--accent-primary);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  z-index: 100;
  margin: 0;
}

/* Invisible bridge */
.header__nav-item::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: 20px;
}

.header__nav-item:hover .header__submenu {
  opacity: 1 !important;
  visibility: visible !important;
  transform: translateY(0) !important;
}

.header__submenu li {
  width: 100%;
}

.header__submenu-link {
  display: block;
  padding: 0.75rem var(--space-lg);
  color: #ffffff;
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-align: left;
}

.header__submenu-link:hover {
  background: rgba(21, 213, 255, 0.1);
  color: var(--accent-primary);
  padding-left: calc(var(--space-lg) + 8px);
}

.header__flag {
  width: 16px;
  height: 12px;
  object-fit: cover;
  border-radius: 1px;
}

.header__cart {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  color: #ffffff;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  cursor: pointer;
  transition: all var(--transition-base);
}

.header__cart:hover {
  background: rgba(21, 213, 255, 0.1);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.header__cart-count {
  position: absolute;
  top: -2px;
  right: -2px;
  background: var(--accent-primary);
  color: var(--bg-deep);
  font-size: 0.625rem;
  font-weight: 800;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.header__ssi-badge {
  display: none;
  align-items: center;
  transition: opacity var(--transition-base);
  padding-left: var(--space-md);
  border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.header__ssi-badge:hover {
  opacity: 1;
}

.header__ssi-logo {
  height: 24px;
  width: auto;
  transition: all var(--transition-base);
}

.header__ssi-badge:hover .header__ssi-logo {
  filter: none;
}

@media (min-width: 1200px) {
  .header__ssi-badge {
    display: flex;
  }
}

.header__mobile-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
}

@media (min-width: 1024px) {
  .header__mobile-toggle {
    display: none;
  }
}

.header__mobile-toggle span {
  width: 24px;
  height: 2px;
  background: #ffffff;
  transition: all 0.3s ease;
}

.header__mobile-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.header__mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.header__mobile-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

@media (max-width: 1023px) {
  .header {
    padding: var(--space-sm) 0;
  }

  .header__logo-img {
    height: 36px;
  }

  .header__nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: var(--bg-deep);
    flex-direction: column;
    justify-content: center;
    padding: var(--space-2xl);
    gap: var(--space-xl);
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    z-index: 1001;
    display: flex;
  }

  .header__nav.mobile-open {
    right: 0;
  }

  .header__nav-link {
    font-size: 1.25rem;
    width: 100%;
    text-align: center;
    justify-content: center;
  }

  .header__nav-icon {
    display: none;
  }

  .header__nav-item {
    flex-direction: column;
    width: 100%;
    gap: var(--space-xs);
  }

  .header__submenu {
    position: static;
    opacity: 0;
    visibility: hidden;
    transform: none;
    background: transparent;
    box-shadow: none;
    border: none;
    padding: 0;
    min-width: unset;
    display: none;
    flex-direction: column;
    gap: 0.5rem;
    transition: all var(--transition-base);
  }

  .header__nav-item.submenu-open .header__submenu {
    display: flex;
    opacity: 1;
    visibility: visible;
    padding: 0.5rem 0;
  }

  .header__submenu-link {
    font-size: 1rem;
    padding: 0.5rem 0;
    text-align: center;
    opacity: 0.7;
    white-space: normal;
  }

  .header__submenu-link:hover {
    padding-left: 0;
    opacity: 1;
    background: transparent;
  }

  .header__actions {
    display: none;
  }
}

body.menu-open {
  overflow: hidden;
}

/* Header Overlay */
.header__overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 7, 13, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.header__overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero__scene {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: top center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  opacity: 0;
  transition: opacity 1s ease-in-out, transform 0.3s ease-out;
  transform: scale(1.1);
}

@media (max-width: 767px) {
  .hero__scene {
    background-attachment: scroll;
    /* Better performance on mobile */
  }
}

.hero__scene.active {
  opacity: 1;
  transform: scale(1);
}

.hero__scene--1 {
  background-image: url("assets/slide-bg.jpg");
}

.hero__scene--2 {
  background-image: url("assets/slide-bg.jpg");
}

.hero__scene--3 {
  background-image: url("assets/slide-bg.jpg");
}

.hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg,
      rgba(6, 24, 38, 0.5) 0%,
      rgba(6, 24, 38, 0.7) 50%,
      rgba(6, 24, 38, 0.9) 100%);
  z-index: 2;
}

.hero__content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 0 var(--space-md);
  max-width: 900px;
  animation: fadeUp 1s ease-out;
}

.hero__title {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 800;
  margin-bottom: var(--space-md);
  line-height: 1.1;
  color: var(--text-heading);
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.hero__title .hero__title-highlight {
  color: var(--accent-primary);
  text-shadow: 0 0 20px rgba(21, 213, 255, 0.5);
}

.hero__title-line1,
.hero__title-line2 {
  display: block;
}

.hero__title-line1 {
  font-size: 50px;
}

.hero__title-line2 {
  font-size: 45px;
}

.hero__subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--text-body);
  margin-bottom: var(--space-2xl);
  line-height: 1.6;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero__cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
  align-items: center;
}

.hero__scroll-indicator {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  color: var(--text-body);
  font-size: 0.875rem;
  animation: bounce 2s infinite;
}

.hero__scroll-indicator svg {
  width: 24px;
  height: 24px;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

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

@keyframes bounce {

  0%,
  100% {
    transform: translateX(-50%) translateY(0);
  }

  50% {
    transform: translateX(-50%) translateY(10px);
  }
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--accent-primary);
  color: var(--bg-deep);
  box-shadow: 0 4px 16px rgba(21, 213, 255, 0.3);
  font-weight: 600;
}

.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 ease;
}

.btn--primary:hover::before {
  left: 100%;
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(21, 213, 255, 0.4);
  background: var(--accent-secondary);
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--primary:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

.btn--secondary {
  background: transparent;
  color: var(--accent-primary);
  border: 1px solid var(--accent-primary);
  backdrop-filter: blur(10px);
}

.btn--secondary:hover {
  background: rgba(21, 213, 255, 0.1);
  border-color: var(--accent-secondary);
  color: var(--accent-secondary);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(21, 213, 255, 0.2);
}

.btn--small {
  padding: var(--space-xs) var(--space-md);
  font-size: 0.875rem;
}

/* ============================================
   Trust Strip
   ============================================ */
.trust-strip {
  background: var(--bg-dark);
  padding: var(--space-lg) 0;
  border-bottom: 1px solid rgba(21, 213, 255, 0.1);
}

.trust-strip__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
  align-items: center;
}

.trust-strip__item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-body);
  font-size: 0.875rem;
  font-weight: 500;
}

.trust-strip__icon {
  width: 24px;
  height: 24px;
  color: var(--accent-primary);
  flex-shrink: 0;
}

@media (min-width: 768px) and (max-width: 1023px) {
  .trust-strip__container {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }
}

@media (max-width: 767px) {
  .trust-strip__container {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .trust-strip {
    padding: var(--space-md) 0;
  }

  .trust-strip__item {
    justify-content: center;
    text-align: center;
  }
}

/* ============================================
   Intro Section
   ============================================ */
.intro {
  padding: var(--space-3xl) 0;
  background: var(--bg-deep);
}

.intro__wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.intro__image-section {
  position: relative;
}

.intro__image-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--bg-dark);
}

.intro__main-image {
  width: 100%;
  height: 100%;
  min-height: 550px;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-base);
  filter: brightness(0.8) contrast(1.1);
}

.intro__image-wrapper:hover .intro__main-image {
  transform: scale(1.05);
}

.intro__badge-cert {
  position: absolute;
  bottom: var(--space-lg);
  left: var(--space-lg);
  background: rgba(21, 213, 255, 0.15);
  backdrop-filter: blur(20px);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(21, 213, 255, 0.3);
}

.intro__badge-img {
  height: 50px;
  width: auto;
  object-fit: contain;
}

.intro__content-section {
  padding: var(--space-xl) 0;
}

.intro__partner-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(21, 213, 255, 0.1);
  border: 1px solid var(--accent-primary);
  border-radius: var(--radius-md);
  color: var(--accent-primary);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-lg);
}

.intro__partner-badge svg {
  width: 16px;
  height: 16px;
}

.intro__title {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-heading);
  margin-bottom: var(--space-md);
}

.intro__title-highlight {
  color: var(--accent-primary);
}

.intro__description {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-body);
  margin-bottom: var(--space-xl);
}

.intro__features {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-xl) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.intro__feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  font-size: 1rem;
  color: var(--text);
  line-height: 1.6;
}

.intro__feature svg {
  color: #f97316;
  flex-shrink: 0;
  margin-top: 0.125rem;
}

.intro__cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

/* ============================================
   Destinations
   ============================================ */
.destinations {
  padding: var(--space-3xl) 0;
  background: var(--bg-dark);
}

.destinations__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.destination-card {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  background: var(--bg-card);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(21, 213, 255, 0.2);
  transition: all var(--transition-base);
}

.destination-card:hover {
  transform: translateY(-8px);
  border-color: rgba(21, 213, 255, 0.4);
  box-shadow: 0 12px 40px rgba(21, 213, 255, 0.2), 0 8px 32px rgba(0, 0, 0, 0.5);
}

.destination-card__image {
  position: relative;
  width: 100%;
  height: 300px;
  overflow: hidden;
}

.destination-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
  filter: brightness(0.85) contrast(1.05);
}

.destination-card:hover .destination-card__img {
  transform: scale(1.1);
}

.destination-card__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg,
      transparent 0%,
      rgba(6, 24, 38, 0.85) 100%);
}

.destination-card__content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-xl);
  z-index: 2;
}

.destination-card__title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: var(--space-sm);
  color: var(--text-heading);
}

.destination-card__description {
  color: var(--text-body);
  margin-bottom: var(--space-md);
  font-size: 1.125rem;
}

/* ============================================
   Courses
   ============================================ */
.courses {
  padding: var(--space-3xl) 0 var(--space-2xl);
  background: var(--bg-deep);
}

.courses__slider {
  position: relative;
  margin-bottom: var(--space-2xl);
}

.courses__track {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  position: relative;
}

.course-card {
  background: var(--bg-card);
  border-radius: 16px;
  border: 1px solid rgba(21, 213, 255, 0.2);
  overflow: hidden;
  transition: all 0.5s ease-in-out;
  display: flex;
  flex-direction: column;
  opacity: 0.6;
  transform: scale(0.95);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.course-card.active {
  opacity: 1;
  transform: scale(1);
  border-color: var(--accent-primary);
  box-shadow: 0 8px 32px rgba(21, 213, 255, 0.3), 0 4px 16px rgba(0, 0, 0, 0.4);
}

.course-card:hover {
  transform: translateY(-4px) scale(1.02);
  border-color: var(--accent-primary);
  box-shadow: 0 12px 40px rgba(21, 213, 255, 0.25), 0 8px 24px rgba(0, 0, 0, 0.5);
}

.course-card__image {
  width: 100%;
  height: 210px;
  overflow: hidden;
  background: var(--bg-deep);
  position: relative;
}

.course-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
  filter: brightness(0.85) contrast(1.05);
}

.course-card:hover .course-card__img {
  transform: scale(1.05);
}

.course-card__badge {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-sm);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  z-index: 2;
  backdrop-filter: blur(10px);
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.course-card__badge--beginner {
  color: var(--accent-secondary);
  border-color: var(--accent-primary);
  background: rgba(21, 213, 255, 0.15);
}

.course-card__badge--intermediate {
  color: #9b59b6;
  border-color: #9b59b6;
}

.course-card__badge--advanced {
  color: #e74c3c;
  border-color: #e74c3c;
}

.course-card__content {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.course-card__title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-heading);
  line-height: 1.3;
}

.course-card__description {
  font-size: 0.8125rem;
  color: var(--text-body);
  line-height: 1.5;
  margin-bottom: var(--space-sm);
}

.course-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.course-card__duration {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.course-card__duration svg {
  width: 14px;
  height: 14px;
  color: var(--accent-primary);
}

.course-card__price-wrapper {
  display: flex;
  align-items: baseline;
  gap: 0.375rem;
  margin-bottom: var(--space-sm);
}

.course-card__price {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-primary);
  line-height: 1;
}

.course-card__currency {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
}

.course-card__content .btn {
  margin-top: auto;
  width: 100%;
}

.courses__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-dark);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  z-index: 10;
  opacity: 0.7;
}

.courses__arrow:hover {
  opacity: 1;
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: var(--bg-deep);
  box-shadow: 0 4px 16px rgba(21, 213, 255, 0.3);
}

.courses__arrow--prev {
  left: -24px;
}

.courses__arrow--next {
  right: -24px;
}

.courses__dots {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
}

.courses__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  padding: 0;
}

.courses__dot.active,
.courses__dot:hover {
  background: var(--accent-primary);
  transform: scale(1.2);
  box-shadow: 0 0 12px rgba(21, 213, 255, 0.5);
}

/* ============================================
   Trips
   ============================================ */
.trips {
  padding: var(--space-3xl) 0 var(--space-2xl);
  background: var(--bg-dark);
}

.trips__slider {
  position: relative;
  margin-bottom: var(--space-2xl);
}

.trips__track {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  position: relative;
}

.trip-card {
  background: var(--bg-card);
  border-radius: 16px;
  border: 1px solid rgba(21, 213, 255, 0.2);
  overflow: hidden;
  transition: all 0.5s ease-in-out;
  display: flex;
  flex-direction: column;
  opacity: 0.6;
  transform: scale(0.95);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.trip-card.active {
  opacity: 1;
  transform: scale(1);
  border-color: var(--accent-primary);
  box-shadow: 0 8px 32px rgba(21, 213, 255, 0.3), 0 4px 16px rgba(0, 0, 0, 0.4);
}

.trip-card:hover {
  transform: translateY(-4px) scale(1.02);
  border-color: var(--accent-primary);
  box-shadow: 0 12px 40px rgba(21, 213, 255, 0.25), 0 8px 24px rgba(0, 0, 0, 0.5);
}

.trip-card__image {
  width: 100%;
  height: 210px;
  overflow: hidden;
  background: var(--bg-deep);
  position: relative;
}

.trip-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
  filter: brightness(0.85) contrast(1.05);
}

.trip-card:hover .trip-card__img {
  transform: scale(1.05);
}

.trip-card__badge {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-sm);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  z-index: 2;
  backdrop-filter: blur(10px);
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.trip-card__badge--location {
  color: var(--accent-secondary);
  border-color: var(--accent-primary);
  background: rgba(21, 213, 255, 0.15);
}

.trip-card__badge--premium {
  color: #f39c12;
  border-color: #f39c12;
}

.trip-card__content {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.trip-card__title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-heading);
  line-height: 1.3;
}

.trip-card__description {
  font-size: 0.8125rem;
  color: var(--text-body);
  line-height: 1.5;
  margin-bottom: var(--space-sm);
}

.trip-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.trip-card__duration,
.trip-card__dives {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.trip-card__duration svg,
.trip-card__dives svg {
  width: 14px;
  height: 14px;
  color: var(--accent-primary);
}

.trip-card__price-wrapper {
  display: flex;
  align-items: baseline;
  gap: 0.375rem;
  margin-bottom: var(--space-sm);
}

.trip-card__price {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-primary);
  line-height: 1;
}

.trip-card__currency {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
}

.trip-card__content .btn {
  margin-top: auto;
  width: 100%;
}

.trips__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-dark);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  z-index: 10;
  opacity: 0.7;
}

.trips__arrow:hover {
  opacity: 1;
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: var(--bg-deep);
  box-shadow: 0 4px 16px rgba(21, 213, 255, 0.3);
}

.trips__arrow--prev {
  left: -24px;
}

.trips__arrow--next {
  right: -24px;
}

.trips__dots {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
}

.trips__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  padding: 0;
}

.trips__dot.active,
.trips__dot:hover {
  background: var(--accent-primary);
  transform: scale(1.2);
  box-shadow: 0 0 12px rgba(21, 213, 255, 0.5);
}

@media (max-width: 767px) {
  .trips__track {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .trips__arrow {
    width: 40px;
    height: 40px;
  }

  .trips__arrow--prev {
    left: 10px;
  }

  .trips__arrow--next {
    right: 10px;
  }

  .trip-card__image {
    height: 220px;
  }
}

/* ============================================
   Why Choose Us
   ============================================ */
.why-choose {
  padding: var(--space-3xl) 0;
  background: var(--bg-deep);
}

.why-choose__subtitle {
  text-align: center;
  color: var(--text-body);
  font-size: 1.125rem;
  margin-bottom: var(--space-2xl);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.why-choose__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.why-choose__card {
  padding: var(--space-xl);
  background: var(--bg-card);
  border-radius: 16px;
  border: 1px solid rgba(21, 213, 255, 0.2);
  text-align: center;
  transition: all var(--transition-base);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.why-choose__card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-primary);
  box-shadow: 0 8px 32px rgba(21, 213, 255, 0.25), 0 4px 16px rgba(0, 0, 0, 0.4);
}

.why-choose__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-md);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(21, 213, 255, 0.15);
  border-radius: var(--radius-md);
}

.why-choose__title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: var(--space-sm);
}

.why-choose__description {
  font-size: 0.9375rem;
  color: var(--text-body);
  line-height: 1.6;
  margin: 0;
}

/* ============================================
   Reviews
   ============================================ */
.reviews {
  padding: var(--space-3xl) 0;
  background: var(--bg-deep);
}

.reviews__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.review-card {
  padding: var(--space-xl);
  background: var(--bg-card);
  border-radius: 16px;
  border: 1px solid rgba(21, 213, 255, 0.2);
  text-align: left;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-base);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.review-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-primary);
  box-shadow: 0 8px 32px rgba(21, 213, 255, 0.25), 0 4px 16px rgba(0, 0, 0, 0.4);
}

.review-card__stars {
  display: flex;
  gap: 4px;
  margin-bottom: var(--space-md);
  color: #fbbf24;
}

.review-card__quote-wrapper {
  position: relative;
  flex-grow: 1;
  margin-bottom: var(--space-sm);
}

.review-card__quote {
  font-size: 0.9375rem;
  font-style: normal;
  color: var(--text-body);
  line-height: 1.7;
  margin: 0;
  max-height: calc(1.7em * 4);
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  position: relative;
}

.review-card__quote.expanded {
  max-height: 1000px;
}

.review-card__toggle {
  background: none;
  border: none;
  color: var(--accent-primary);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  margin-bottom: var(--space-md);
  text-align: left;
  transition: color var(--transition-base);
  display: none;
}

.review-card__toggle:hover {
  color: var(--accent-secondary);
  text-decoration: underline;
}

.review-card__toggle.active {
  display: block;
}

.review-card__author {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-style: normal;
  font-weight: 600;
  margin-top: auto;
}

.reviews__cta {
  text-align: center;
  margin-top: var(--space-2xl);
}

.reviews__cta .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

@media (max-width: 767px) {
  .reviews__grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}

/* ============================================
   Contact Form
   ============================================ */
.contact {
  padding: var(--space-3xl) 0;
  background: var(--bg-dark);
}

.contact__subtitle {
  text-align: center;
  color: var(--text-body);
  font-size: 1.125rem;
  margin-bottom: var(--space-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.contact__wrapper {
  display: grid;
  grid-template-columns: 40% 60%;
  gap: var(--space-2xl);
  align-items: center;
}

.contact__form {
  max-width: 100%;
}

.contact__field {
  margin-bottom: var(--space-sm);
}

.contact__fields-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-sm);
}

.contact__label {
  display: none;
}

.contact__input,
.contact__textarea {
  width: 100%;
  padding: var(--space-sm);
  background: var(--bg-card);
  border: 1px solid rgba(21, 213, 255, 0.2);
  border-radius: var(--radius-md);
  color: var(--text-body);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  transition: all var(--transition-base);
}

.contact__input::placeholder,
.contact__textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.7;
}

.contact__input:focus,
.contact__textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(21, 213, 255, 0.15);
  background: var(--bg-dark);
}

.contact__textarea {
  resize: vertical;
  min-height: 70px;
}

.contact__image {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact__img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  object-fit: contain;
}

.contact__form .btn {
  width: 50%;
  margin: 0 auto var(--space-sm);
  display: block;
}

.contact__microcopy {
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ============================================
   Footer - Premium Design
   ============================================ */
.footer {
  padding: 0;
  background: linear-gradient(180deg, #061826 0%, #040a12 100%);
  border-top: 1px solid rgba(21, 213, 255, 0.15);
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(21, 213, 255, 0.4), transparent);
}

/* Zone A: CTA Strip */
.footer__cta {
  padding: var(--space-3xl) var(--space-lg);
  border-bottom: 1px solid rgba(21, 213, 255, 0.15);
}

.footer__cta-content {
  max-width: 900px;
  margin: 0 auto;
  background: rgba(15, 45, 70, 0.6);
  border: 1px solid rgba(21, 213, 255, 0.2);
  border-radius: 16px;
  padding: var(--space-2xl);
  text-align: center;
  backdrop-filter: blur(10px);
}

.footer__cta-title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: var(--space-sm);
  line-height: 1.2;
}

.footer__cta-subtitle {
  font-size: 1rem;
  color: var(--text-body);
  margin-bottom: var(--space-xl);
  line-height: 1.6;
}

.footer__cta-buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.footer__cta-btn-primary,
.footer__cta-btn-secondary {
  min-width: 160px;
  padding: var(--space-sm) var(--space-xl);
  font-weight: 600;
  border-radius: 12px;
  transition: all var(--transition-base);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.footer__cta-btn-primary {
  background: var(--accent-primary);
  color: var(--bg-deep);
  border: 1px solid var(--accent-primary);
  font-weight: 600;
}

.footer__cta-btn-primary:hover {
  background: var(--accent-secondary);
  border-color: var(--accent-secondary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(21, 213, 255, 0.4);
}

.footer__cta-btn-secondary {
  background: transparent;
  color: var(--accent-primary);
  border: 1px solid var(--accent-primary);
}

.footer__cta-btn-secondary:hover {
  background: rgba(21, 213, 255, 0.1);
  border-color: var(--accent-secondary);
  color: var(--accent-secondary);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(21, 213, 255, 0.2);
}

.footer__cta-trust {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--space-lg);
}

.footer__cta-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: rgba(21, 213, 255, 0.1);
  border: 1px solid rgba(21, 213, 255, 0.2);
  border-radius: 8px;
  font-size: 0.875rem;
  color: var(--text-body);
  transition: all var(--transition-fast);
}

.footer__cta-chip svg {
  flex-shrink: 0;
  color: var(--accent-primary);
}

.footer__cta-chip:hover {
  background: rgba(21, 213, 255, 0.15);
  border-color: var(--accent-primary);
  color: var(--text-heading);
}

/* Zone B: Main Footer Grid */
.footer__main {
  padding: var(--space-3xl) var(--space-lg);
  border-bottom: 1px solid rgba(21, 213, 255, 0.15);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  max-width: 1280px;
  margin: 0 auto;
}

.footer__column--location {
  min-width: 0;
  width: 100%;
}

.footer__column {
  display: flex;
  flex-direction: column;
}

.footer__column-title,
.footer__logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: var(--space-md);
  line-height: 1.2;
  display: block;
}

.footer__logo-img {
  height: 60px !important;
  width: auto !important;
  object-fit: contain !important;
  filter: brightness(1.1) !important;
  transition: height 0.4s ease !important;
}

.footer__column-heading {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.875rem;
}

.footer__column-description {
  font-size: 0.9375rem;
  color: var(--text-body);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.footer__social {
  display: flex;
  gap: var(--space-sm);
  margin-top: auto;
}

.footer__social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(21, 213, 255, 0.1);
  border: 1px solid rgba(21, 213, 255, 0.2);
  color: var(--text-body);
  transition: all var(--transition-base);
  text-decoration: none;
}

.footer__social-link:hover {
  background: rgba(21, 213, 255, 0.2);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(21, 213, 255, 0.3);
}

.footer__nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__nav-link {
  color: var(--text-body);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: all var(--transition-fast);
  position: relative;
  display: inline-block;
  width: fit-content;
  padding-bottom: 2px;
}

.footer__nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent-primary);
  transition: width var(--transition-base);
}

.footer__nav-link:hover {
  color: var(--accent-primary);
}

.footer__nav-link:hover::after {
  width: 100%;
}

/* Location Cards */
.footer__column--location {
  display: flex;
  min-width: 260px;
  width: 100%;
  flex: 1 1 0;
}

.footer__column--location .footer__location-card {
  width: 100%;
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  font-style: normal;
  transition: all var(--transition-base);
}

.footer__location-card {
  padding: var(--space-sm) var(--space-md);
  background: rgba(21, 213, 255, 0.05);
  border: 1px solid rgba(21, 213, 255, 0.15);
  border-radius: 10px;
  font-style: normal;
  transition: all var(--transition-base);
}

.footer__location-card:hover {
  background: rgba(21, 213, 255, 0.1);
  border-color: rgba(21, 213, 255, 0.3);
}

.footer__location-title {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 0.5rem;
}

.footer__location-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  color: var(--text-body);
  font-size: 0.8125rem;
  line-height: 1.5;
  margin-bottom: 0.375rem;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__location-item:last-child {
  margin-bottom: 0;
}

.footer__location-item svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--accent-primary);
  width: 14px;
  height: 14px;
}

.footer__location-item:hover {
  color: var(--accent-primary);
}

/* Zone C: Certificates */
.footer__certificates {
  padding: var(--space-2xl) var(--space-lg);
  border-bottom: 1px solid rgba(21, 213, 255, 0.15);
  text-align: center;
}

.footer__certificates-label {
  font-size: 0.875rem;
  color: var(--text-body);
  margin-bottom: var(--space-lg);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 500;
}

.footer__certificates-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-2xl);
  flex-wrap: wrap;
}

.footer__cert-logo {
  height: 50px;
  width: auto;
  filter: grayscale(30%);
  transition: all var(--transition-base);
}

.footer__cert-logo:hover {
  opacity: 1;
  filter: grayscale(0%);
  transform: translateY(-2px);
}

/* Zone D: Bottom Bar */
.footer__bottom {
  padding: var(--space-lg) var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer__copyright {
  color: var(--text-body);
  font-size: 0.875rem;
  margin: 0;
}

.footer__bottom-nav {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.footer__bottom-link {
  color: var(--text-body);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition-fast);
  position: relative;
}

.footer__bottom-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent-primary);
  transition: width var(--transition-base);
}

.footer__bottom-link:hover {
  color: var(--accent-primary);
}

.footer__bottom-link:hover::after {
  width: 100%;
}

.footer__bottom-separator {
  color: var(--text-muted);
  opacity: 0.5;
  font-size: 0.875rem;
}

/* ============================================
   Section Reveal Animation
   ============================================ */
.section-reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.section-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Responsive Adjustments - Tablet
   ============================================ */
@media (min-width: 768px) and (max-width: 1023px) {
  :root {
    --space-3xl: 4rem;
    --space-2xl: 3rem;
  }

  .container {
    padding: 0 var(--space-lg);
  }

  .hero {
    min-height: 550px;
  }

  .hero__title-line1 {
    font-size: 42px;
  }

  .hero__title-line2 {
    font-size: 38px;
  }

  .intro__wrapper {
    gap: var(--space-2xl);
  }

  .intro__main-image {
    min-height: 450px;
  }

  .intro__title {
    font-size: 2rem;
  }

  .courses__track {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }

  .trips__track {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }

  .destinations__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }

  .why-choose__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }

  .reviews__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }

  .contact__wrapper {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .contact__image {
    order: -1;
    max-height: 400px;
  }

  .destination-card__image {
    height: 280px;
  }

  .destination-card__title {
    font-size: 1.75rem;
  }

  .section-title {
    font-size: 2.5rem;
  }

  .courses__arrow--prev,
  .trips__arrow--prev {
    left: -20px;
  }

  .courses__arrow--next,
  .trips__arrow--next {
    right: -20px;
  }

  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
  }

  .footer__column--location {
    grid-column: span 1;
  }

  .footer__cta-content {
    padding: var(--space-xl);
  }
}

/* ============================================
   Responsive Adjustments - Mobile
   ============================================ */
@media (max-width: 767px) {
  .hero__cta-group {
    flex-direction: column;
  }

  .hero__cta-group .btn {
    width: 100%;
    max-width: 300px;
    min-height: 48px;
    /* Better touch target */
    padding: var(--space-sm) var(--space-lg);
  }

  .destinations__grid,
  .why-choose__grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .intro__wrapper {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .intro__main-image {
    min-height: 350px;
  }

  .intro__title {
    font-size: 1.75rem;
  }

  .intro__badge-cert {
    bottom: var(--space-md);
    left: var(--space-md);
    padding: var(--space-xs) var(--space-sm);
  }

  .intro__badge-img {
    height: 40px;
  }

  .courses__track {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .trips__track {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .courses__arrow,
  .trips__arrow {
    width: 44px;
    height: 44px;
  }

  .courses__arrow--prev,
  .trips__arrow--prev {
    left: 8px;
  }

  .courses__arrow--next,
  .trips__arrow--next {
    right: 8px;
  }

  .destination-card__image {
    height: 240px;
  }

  .destination-card__title {
    font-size: 1.5rem;
  }

  .destination-card__content {
    padding: var(--space-lg);
  }

  .section-title {
    font-size: 1.875rem;
    margin-bottom: var(--space-xl);
  }

  .contact__wrapper {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .contact__image {
    order: -1;
    max-height: 300px;
  }

  .contact__fields-row {
    grid-template-columns: 1fr;
  }

  .contact__form .btn {
    width: 100%;
    min-height: 48px;
  }

  .course-card__content .btn,
  .trip-card__content .btn {
    min-height: 44px;
  }

  .trust-strip__item {
    font-size: 0.8125rem;
  }

  .footer__cta {
    padding: var(--space-2xl) var(--space-md);
  }

  .footer__cta-content {
    padding: var(--space-lg);
  }

  .footer__cta-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .footer__cta-btn-primary,
  .footer__cta-btn-secondary {
    width: 100%;
  }

  .footer__cta-trust {
    flex-direction: column;
    align-items: center;
  }

  .footer__main {
    padding: var(--space-2xl) var(--space-md);
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }


  .footer__certificates {
    padding: var(--space-xl) var(--space-md);
  }

  .footer__certificates-logos {
    flex-direction: column;
    gap: var(--space-lg);
  }

  .footer__cert-logo {
    height: 40px;
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
    padding: var(--space-lg) var(--space-md);
  }

  .footer__bottom-nav {
    justify-content: center;
  }

  .hero__scroll-indicator {
    bottom: var(--space-lg);
    font-size: 0.75rem;
  }

  .hero__scroll-indicator svg {
    width: 20px;
    height: 20px;
  }

  .hero__title-line1 {
    font-size: 36px;
  }

  .hero__title-line2 {
    font-size: 32px;
  }

  .hero__subtitle {
    font-size: 0.9375rem;
    margin-bottom: var(--space-xl);
  }
}

/* ============================================
   Back to Top Button - Premium Design
   ============================================ */
.back-to-top {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  width: 52px;
  height: 52px;
  background: rgba(15, 45, 70, 0.9);
  backdrop-filter: blur(10px);
  color: var(--accent-primary);
  border: 1px solid rgba(21, 213, 255, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.9);
  transition: all var(--transition-base);
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
  stroke-width: 2.5;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.back-to-top:hover {
  background: rgba(21, 213, 255, 0.2);
  border-color: var(--accent-primary);
  color: var(--accent-secondary);
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 8px 24px rgba(21, 213, 255, 0.3), 0 0 20px rgba(21, 213, 255, 0.2);
}

.back-to-top:active {
  transform: translateY(-2px) scale(1.02);
}

.back-to-top:focus {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

@media (max-width: 767px) {
  .back-to-top {
    bottom: var(--space-lg);
    right: var(--space-lg);
    width: 48px;
    height: 48px;
  }

  .back-to-top svg {
    width: 18px;
    height: 18px;
  }
}

@media (max-width: 480px) {
  :root {
    --space-3xl: 3rem;
    --space-2xl: 2.5rem;
    --space-xl: 2rem;
    --space-lg: 1.5rem;
  }

  .container {
    padding: 0 var(--space-sm);
  }

  .hero {
    min-height: 500px;
  }

  .hero__title-line1 {
    font-size: 32px;
  }

  .hero__title-line2 {
    font-size: 28px;
  }

  .hero__subtitle {
    font-size: 0.875rem;
  }

  .section-title {
    font-size: 1.75rem;
    margin-bottom: var(--space-xl);
  }

  .intro__title {
    font-size: 1.5rem;
  }

  .intro__main-image {
    min-height: 300px;
  }

  .intro__badge-cert {
    bottom: var(--space-sm);
    left: var(--space-sm);
    padding: var(--space-xs);
  }

  .intro__badge-img {
    height: 32px;
  }

  .destination-card__title {
    font-size: 1.375rem;
  }

  .destination-card__content {
    padding: var(--space-md);
  }

  .course-card__content,
  .trip-card__content {
    padding: var(--space-md);
  }

  .btn {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    min-height: 44px;
  }

  .footer__grid {
    gap: var(--space-lg);
  }

  .footer__column-title {
    font-size: 1.25rem;
  }
}