/* ============================================================
   K2 Yachting — Stylesheet
   Theme: Dark Navy + Gold
   ============================================================ */

:root {
  --navy-deep:  #07111f;
  --navy:       #0d1c30;
  --navy-light: #152640;
  --navy-card:  #0f1e32;
  --border:     #1e3454;
  --gold:       #c8a84b;
  --gold-light: #e2c26c;
  --gold-dim:   #7a6228;
  --white:      #ffffff;
  --text:       #dce8f0;
  --text-muted: #7a98b5;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans:  'Inter', 'Open Sans', sans-serif;
  --radius:     8px;
  --shadow:     0 4px 24px rgba(0, 0, 0, 0.45);
  --transition: 0.28s ease;
}

/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--navy-deep);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
section { scroll-margin-top: 72px; }

/* ── Shared ──────────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
.section-header {
  text-align: center;
  margin-bottom: 3rem;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  color: var(--white);
  display: inline-block;
  position: relative;
}
.section-title::after {
  content: '';
  display: block;
  width: 56px;
  height: 2px;
  background: var(--gold);
  margin: 0.6rem auto 0;
}
.section-sub {
  color: var(--text-muted);
  font-size: 1rem;
  margin-top: 0.6rem;
}

/* ============================================================
   NAVBAR
   ============================================================ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 1.5rem;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
}
#navbar.scrolled {
  background: rgba(7, 17, 31, 0.97);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.03em;
}
.nav-logo span { color: var(--gold); }

.nav-links {
  display: flex;
  gap: 2.5rem;
}
.nav-link {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text);
  padding: 0.25rem 0;
  position: relative;
  transition: color var(--transition);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: left;
}
.nav-link:hover { color: var(--gold); }
.nav-link:hover::after { transform: scaleX(1); }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 10;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 620px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.hero-slides {
  position: absolute;
  inset: 0;
}
.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.8s ease;
}
.hero-slide.active { opacity: 1; }

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(7, 17, 31, 0.45) 0%,
    rgba(7, 17, 31, 0.25) 40%,
    rgba(7, 17, 31, 0.75) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem 4rem;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
}
.hero-text { max-width: 640px; }

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.08;
  color: var(--white);
  margin-bottom: 0.75rem;
  text-shadow: 0 2px 20px rgba(0,0,0,0.4);
}
.hero-title span { color: var(--gold); }

.hero-tagline {
  font-family: var(--font-serif);
  font-size: clamp(1rem, 2.2vw, 1.4rem);
  font-style: italic;
  color: var(--gold-light);
  margin-bottom: 0.9rem;
}
.hero-desc {
  font-size: 0.97rem;
  color: rgba(220, 232, 240, 0.82);
  max-width: 500px;
  margin-bottom: 2rem;
  line-height: 1.75;
}
.btn-hero {
  display: inline-block;
  padding: 0.85rem 2.2rem;
  background: var(--gold);
  color: var(--navy-deep);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
}
.btn-hero:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
}

.hero-espa { flex-shrink: 0; }
.espa-img {
  height: 190px;
  width: auto;
  border-radius: 5px;
  opacity: 0.88;
  transition: opacity var(--transition);
}
.espa-img:hover { opacity: 1; }

/* Scroll hint */
.scroll-hint {
  position: absolute;
  bottom: 1.75rem;
  left: 50%;
  transform: translateX(-50%);
  width: 22px;
  height: 36px;
  border: 2px solid rgba(200, 168, 75, 0.45);
  border-radius: 11px;
  display: flex;
  justify-content: center;
  padding-top: 5px;
  z-index: 2;
}
.scroll-hint span {
  width: 3px;
  height: 8px;
  background: var(--gold);
  border-radius: 2px;
  animation: scrollDot 2s ease infinite;
}
@keyframes scrollDot {
  0%, 100% { opacity: 1; transform: translateY(0); }
  60%       { opacity: 0; transform: translateY(12px); }
}

/* ============================================================
   FLEET SECTION
   ============================================================ */
.fleet-section {
  padding: 6rem 0;
  background: var(--navy-deep);
}

/* Filter buttons */
.fleet-filters {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}
.filter-btn {
  padding: 0.5rem 1.5rem;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 100px;
  cursor: pointer;
  transition: all var(--transition);
}
.filter-btn:hover,
.filter-btn.active {
  border-color: var(--gold);
  color: var(--gold);
  background: rgba(200, 168, 75, 0.08);
}

/* Grid */
.fleet-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

/* Card */
.yacht-card {
  background: var(--navy-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.yacht-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
  border-color: var(--gold-dim);
}

/* Card image */
.card-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}
.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.yacht-card:hover .card-img-wrap img { transform: scale(1.06); }

.card-badge {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: rgba(7, 17, 31, 0.78);
  border: 1px solid var(--gold-dim);
  color: var(--gold);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.22rem 0.6rem;
  border-radius: 4px;
  backdrop-filter: blur(4px);
}

.photo-count {
  position: absolute;
  bottom: 0.75rem;
  right: 0.75rem;
  background: rgba(7, 17, 31, 0.65);
  color: var(--text-muted);
  font-size: 0.72rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  backdrop-filter: blur(4px);
}

.placeholder-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(7, 17, 31, 0.48);
}
.placeholder-label span {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 0.35rem 0.85rem;
  border-radius: 4px;
  background: rgba(7, 17, 31, 0.72);
  backdrop-filter: blur(4px);
}

/* Card body */
.card-body {
  padding: 1.2rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-num {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  margin-bottom: 0.25rem;
}
.card-model {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 1rem;
}

/* Specs */
.card-specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.45rem;
  margin-top: auto;
  margin-bottom: 1rem;
}
.spec-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.45rem 0.25rem;
}
.spec-val {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--gold);
  line-height: 1.2;
}
.spec-lbl {
  font-size: 0.62rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.15rem;
}

/* CTA row */
.card-cta {
  display: block;
  text-align: center;
  padding: 0.55rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: all var(--transition);
}
.yacht-card:hover .card-cta {
  border-color: var(--gold);
  color: var(--gold);
  background: rgba(200, 168, 75, 0.06);
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact-section {
  padding: 6rem 0;
  background: var(--navy);
}
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin-bottom: 2.5rem;
}
.contact-card {
  background: var(--navy-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: border-color var(--transition);
}
.contact-card:hover { border-color: var(--gold-dim); }
.contact-icon {
  font-size: 1.8rem;
  color: var(--gold);
  margin-bottom: 1rem;
}
.contact-card h3 {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.5rem;
}
.contact-card a,
.contact-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
  transition: color var(--transition);
}
.contact-card a:hover { color: var(--gold); }

.company-name {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--navy-deep);
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.footer-espa-img {
  height: 60px;
  width: auto;
  opacity: 0.78;
  border-radius: 4px;
  transition: opacity var(--transition);
}
.footer-espa-img:hover { opacity: 1; }

.footer-center { text-align: center; }
.footer-logo {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.4rem;
}
.footer-logo span { color: var(--gold); }
.footer-copy {
  color: var(--text-muted);
  font-size: 0.78rem;
  line-height: 1.75;
}
.footer-copy a { color: var(--gold-dim); transition: color var(--transition); }
.footer-copy a:hover { color: var(--gold); }

.footer-social { display: flex; gap: 0.9rem; }
.social-link {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1rem;
  transition: all var(--transition);
}
.social-link:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* ============================================================
   LIGHTBOX / GALLERY MODAL
   ============================================================ */
#lbOverlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(4, 10, 20, 0.93);
  z-index: 2000;
  backdrop-filter: blur(6px);
}
#lbOverlay.open { display: block; }

#lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2001;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 4rem;
}
#lightbox.open { display: flex; }

.lb-close {
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 2.5rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  transition: color var(--transition);
  z-index: 10;
}
.lb-close:hover { color: var(--white); }

.lb-prev, .lb-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(7, 17, 31, 0.65);
  border: 1px solid var(--border);
  color: var(--white);
  font-size: 2.2rem;
  line-height: 1;
  padding: 0.7rem 1rem;
  cursor: pointer;
  border-radius: var(--radius);
  transition: all var(--transition);
  z-index: 10;
  user-select: none;
  backdrop-filter: blur(4px);
}
.lb-prev { left: 1rem; }
.lb-next { right: 1rem; }
.lb-prev:hover, .lb-next:hover {
  background: rgba(200, 168, 75, 0.18);
  border-color: var(--gold);
  color: var(--gold);
}

.lb-inner {
  width: 100%;
  max-width: 920px;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  max-height: calc(100vh - 3rem);
}

.lb-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
.lb-header h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--white);
}
.lb-counter {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.lb-note {
  display: none;
  font-size: 0.8rem;
  color: var(--gold-dim);
  letter-spacing: 0.06em;
  text-align: center;
  padding: 0.4rem 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: rgba(200, 168, 75, 0.05);
  flex-shrink: 0;
}

.lb-img-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
}
.lb-img-wrap img {
  max-width: 100%;
  max-height: calc(100vh - 240px);
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: opacity 0.2s ease;
}

.lb-thumbs {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.25rem;
  flex-shrink: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.lb-thumbs::-webkit-scrollbar { height: 4px; }
.lb-thumbs::-webkit-scrollbar-track { background: transparent; }
.lb-thumbs::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.lb-thumb {
  flex-shrink: 0;
  width: 62px;
  height: 46px;
  object-fit: cover;
  border-radius: 4px;
  border: 2px solid transparent;
  cursor: pointer;
  opacity: 0.55;
  transition: all var(--transition);
}
.lb-thumb:hover { opacity: 0.85; }
.lb-thumb.active {
  border-color: var(--gold);
  opacity: 1;
}

/* ============================================================
   RESPONSIVE — TABLET  (≤ 1024px)
   ============================================================ */
@media (max-width: 1024px) {
  .fleet-grid    { grid-template-columns: repeat(2, 1fr); }
  .contact-grid  { grid-template-columns: repeat(2, 1fr); }
  .contact-grid .contact-card:last-child {
    grid-column: 1 / -1;
    max-width: 420px;
    margin: 0 auto;
  }
}

/* ============================================================
   RESPONSIVE — MOBILE  (≤ 768px)
   ============================================================ */
@media (max-width: 768px) {
  /* Nav */
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: 72px; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(7, 17, 31, 0.98);
    border-bottom: 1px solid var(--border);
    max-height: 0;
    overflow: hidden;
    padding: 0 1.5rem;
    transition: max-height 0.35s ease, padding 0.35s ease;
  }
  .nav-links.open {
    max-height: 300px;
    padding: 1rem 1.5rem;
  }
  .nav-links li {
    border-bottom: 1px solid var(--border);
    padding: 0.8rem 0;
  }
  .nav-links li:last-child { border-bottom: none; }
  .nav-link::after { display: none; }

  /* Hero */
  .hero-content {
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-end;
    padding-bottom: 3.5rem;
    gap: 1.5rem;
  }
  .hero-espa { align-self: flex-start; }

  /* Fleet */
  .fleet-section  { padding: 4rem 0; }
  .fleet-grid     { grid-template-columns: 1fr; }

  /* Contact */
  .contact-section { padding: 4rem 0; }
  .contact-grid    { grid-template-columns: 1fr; }
  .contact-grid .contact-card:last-child {
    grid-column: auto;
    max-width: none;
  }

  /* Footer */
  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
  .footer-social { justify-content: center; }

  /* Lightbox */
  #lightbox { padding: 1rem 0.5rem; }
  .lb-prev  { left: 0.25rem; padding: 0.5rem 0.75rem; font-size: 1.8rem; }
  .lb-next  { right: 0.25rem; padding: 0.5rem 0.75rem; font-size: 1.8rem; }
  .lb-img-wrap img { max-height: calc(100vh - 200px); }
}

@media (max-width: 480px) {
  .hero       { min-height: 100svh; }
  .hero-title { font-size: 2.6rem; }
  .fleet-section, .contact-section { padding: 3rem 0; }
  .section-header { margin-bottom: 2rem; }
}

/* ── Reduced motion ──────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}