/* ===================================================================
   Discover Santorini — styles.css
   Παλέτα Αιγαίου: βαθύ μπλε, λευκό, χρυσές πινελιές
   =================================================================== */

:root {
  --blue:        #1b5e8c;
  --blue-dark:   #103d5c;
  --blue-deep:   #0a2a40;
  --gold:        #d9a441;
  --sand:        #f6f1e7;
  --white:       #ffffff;
  --ink:         #1d2b36;
  --grey:        #6b7b87;
  --radius:      14px;
  --shadow:      0 18px 40px rgba(16, 61, 92, 0.12);
  --maxw:        1180px;
  --header-h:    74px;
  --ease:        cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }

body {
  font-family: 'Poppins', system-ui, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

h1, h2, h3, h4, .logo, .footer-logo {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-weight: 600;
  line-height: 1.15;
}

.container { width: 90%; max-width: var(--maxw); margin: 0 auto; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 14px 34px;
  border-radius: 50px;
  font-weight: 500;
  letter-spacing: .3px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), background .3s;
  cursor: pointer;
}
.btn-primary { background: var(--gold); color: var(--blue-deep); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 28px rgba(217,164,65,.45); }

/* ---------- Section basics ---------- */
.section { padding: 110px 0; }

.kicker {
  text-transform: uppercase;
  letter-spacing: 3px;
  font-size: .78rem;
  font-weight: 600;
  color: var(--gold);
  margin-bottom: 10px;
}
.section-title { font-size: clamp(2.2rem, 5vw, 3.4rem); color: var(--blue-dark); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 60px; }
.section-head.light .section-title, .section-head.light .kicker { color: var(--white); }

/* fallback χρώμα όταν λείπει εικόνα */
.img-fallback {
  min-height: 220px;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
  position: relative;
}
.img-fallback::after {
  content: '🏝️';
  position: absolute; inset: 0;
  display: grid; place-items: center;
  font-size: 3rem; opacity: .6;
}

/* ===================================================================
   Header
   =================================================================== */
.header {
  position: fixed; top: 0; left: 0; width: 100%;
  height: var(--header-h);
  z-index: 100;
  display: flex; align-items: center;
  transition: background .4s, box-shadow .4s;
}
.header.scrolled {
  background: rgba(255,255,255,.96);
  box-shadow: 0 6px 24px rgba(16,61,92,.10);
  backdrop-filter: blur(8px);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; }

.logo { font-size: 1.7rem; color: var(--white); transition: color .4s; }
.logo span { color: var(--gold); }
.header.scrolled .logo { color: var(--blue-dark); }

.nav { display: flex; gap: 34px; align-items: center; }
.nav-link {
  position: relative;
  color: var(--white);
  font-size: .92rem; font-weight: 400;
  transition: color .3s;
}
.header.scrolled .nav-link { color: var(--ink); }
.nav-link::after {
  content: ''; position: absolute; left: 0; bottom: -6px;
  width: 0; height: 2px; background: var(--gold); transition: width .3s var(--ease);
}
.nav-link:hover::after { width: 100%; }
.nav-link:hover { color: var(--gold); }

.nav-cta {
  border: 1.5px solid var(--gold);
  border-radius: 50px;
  padding: 8px 22px;
  color: var(--gold) !important;
}
.nav-cta::after { display: none; }
.nav-cta:hover { background: var(--gold); color: var(--blue-deep) !important; }

/* language switcher */
.lang-switch { display: flex; gap: 6px; align-items: center; }
.lang-switch button {
  background: none; border: 0; cursor: pointer; padding: 2px;
  font-size: 1.25rem; line-height: 1;
  opacity: .5; filter: grayscale(40%);
  transition: opacity .25s, transform .25s, filter .25s;
}
.lang-switch button:hover { opacity: 1; filter: none; transform: translateY(-1px); }
.lang-switch button.active { opacity: 1; filter: none; transform: scale(1.18); }

/* hamburger */
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; z-index: 110; }
.nav-toggle span { width: 26px; height: 2px; background: var(--white); transition: .3s; }
.header.scrolled .nav-toggle span { background: var(--blue-dark); }
.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; overflow: hidden;
  height: 100vh; min-height: 600px;
  display: grid; place-items: center;
  text-align: center;
  color: var(--white);
  background: linear-gradient(135deg, #1b5e8c, #0a2a40);
}
/* Slideshow */
.hero-slides { position: absolute; inset: 0; z-index: 0; }
.hero-slide {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0; transition: opacity 1.4s ease-in-out;
}
.hero-slide.active { opacity: 1; }

.hero-overlay {
  position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(rgba(10,42,64,.42), rgba(10,42,64,.55)),
    radial-gradient(circle at 50% 120%, transparent, rgba(10,42,64,.5));
}
.hero-content { position: relative; z-index: 2; padding: 0 20px; }
.hero-kicker { text-transform: uppercase; letter-spacing: 5px; font-size: .85rem; margin-bottom: 14px; opacity: .9; }
.hero-title { font-size: clamp(3.5rem, 13vw, 8rem); letter-spacing: 2px; text-shadow: 0 4px 30px rgba(0,0,0,.3); }
.hero-subtitle { font-size: clamp(1.05rem, 2.5vw, 1.4rem); font-weight: 300; margin: 12px 0 34px; }

.hero-scroll {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  width: 26px; height: 44px; border: 2px solid rgba(255,255,255,.7); border-radius: 14px; z-index: 2;
}
.hero-scroll span {
  position: absolute; top: 8px; left: 50%; transform: translateX(-50%);
  width: 4px; height: 8px; background: var(--white); border-radius: 2px;
  animation: scrollDot 1.6s infinite;
}
@keyframes scrollDot { 0% {opacity:0; top:8px;} 40% {opacity:1;} 80% {opacity:0; top:24px;} 100% {opacity:0;} }

/* ===================================================================
   About
   =================================================================== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.about-text p { color: var(--grey); margin-bottom: 18px; }
.about-img img { border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; height: 480px; object-fit: cover; }

.stats { display: flex; gap: 40px; margin-top: 34px; }
.stat-num { font-family: 'Cormorant Garamond', serif; font-size: 2.6rem; font-weight: 700; color: var(--blue); display: block; }
.stat-label { font-size: .82rem; color: var(--grey); text-transform: uppercase; letter-spacing: 1px; }

/* ===================================================================
   Highlights / Cards
   =================================================================== */
.highlights { background: var(--sand); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.card {
  background: var(--white); border-radius: var(--radius); overflow: hidden;
  box-shadow: 0 10px 30px rgba(16,61,92,.08);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}
.card:hover { transform: translateY(-8px); box-shadow: var(--shadow); }
.card-img { height: 220px; overflow: hidden; }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.card:hover .card-img img { transform: scale(1.08); }
.card-body { padding: 26px 26px 30px; }
.card-body h3 { font-size: 1.7rem; color: var(--blue-dark); margin-bottom: 8px; }
.card-body p { color: var(--grey); font-size: .95rem; }

/* ===================================================================
   Gallery
   =================================================================== */
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.gallery-item {
  height: 260px; border-radius: var(--radius); overflow: hidden; cursor: pointer;
  position: relative;
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.gallery-item::after {
  content: '🔍'; position: absolute; inset: 0; display: grid; place-items: center;
  font-size: 1.6rem; background: rgba(16,61,92,.35); opacity: 0; transition: opacity .3s;
}
.gallery-item:hover img { transform: scale(1.1); }
.gallery-item:hover::after { opacity: 1; }

/* ===================================================================
   Beaches (parallax-ish band)
   =================================================================== */
.beaches {
  position: relative; color: var(--white);
  background: linear-gradient(135deg, var(--blue), var(--blue-deep));
  background-image: linear-gradient(rgba(10,42,64,.7), rgba(10,42,64,.78)), url('images/beach.jpg');
  background-size: cover; background-position: center; background-attachment: fixed;
}
.beach-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.beach {
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.15);
  backdrop-filter: blur(6px); padding: 30px 32px; border-radius: var(--radius);
  transition: transform .3s var(--ease), background .3s;
}
.beach:hover { transform: translateY(-5px); background: rgba(255,255,255,.14); }
.beach h3 { font-size: 1.6rem; color: var(--gold); margin-bottom: 8px; }
.beach p { font-size: .95rem; opacity: .9; }

/* ===================================================================
   Map
   =================================================================== */
.map-frame { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.map-frame iframe { display: block; }

/* ===================================================================
   Footer
   =================================================================== */
.footer { background: var(--blue-deep); color: rgba(255,255,255,.8); padding: 70px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 40px; }
.footer-logo { font-size: 1.9rem; color: var(--white); margin-bottom: 12px; }
.footer-logo span { color: var(--gold); }
.footer h4 { color: var(--white); margin-bottom: 16px; font-size: 1.3rem; }
.footer li { margin-bottom: 10px; }
.footer a:hover { color: var(--gold); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 50px; padding: 24px 0; text-align: center; font-size: .85rem; }

/* ===================================================================
   Lightbox
   =================================================================== */
.lightbox {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(8,22,33,.94);
  display: none; place-items: center;
}
.lightbox.open { display: grid; }
.lb-img { max-width: 88vw; max-height: 82vh; border-radius: 8px; box-shadow: 0 20px 60px rgba(0,0,0,.6); }
.lb-close { position: absolute; top: 22px; right: 30px; font-size: 2.6rem; color: #fff; background: none; border: 0; cursor: pointer; line-height: 1; }
.lb-nav { position: absolute; top: 50%; transform: translateY(-50%); font-size: 2rem; color: #fff; background: rgba(255,255,255,.12); border: 0; width: 52px; height: 52px; border-radius: 50%; cursor: pointer; transition: background .3s; }
.lb-nav:hover { background: var(--gold); color: var(--blue-deep); }
.lb-prev { left: 24px; } .lb-next { right: 24px; }

/* ===================================================================
   Back to top
   =================================================================== */
.to-top {
  position: fixed; bottom: 26px; right: 26px; z-index: 90;
  width: 48px; height: 48px; border-radius: 50%; border: 0;
  background: var(--gold); color: var(--blue-deep); font-size: 1.3rem; cursor: pointer;
  opacity: 0; pointer-events: none; transform: translateY(20px);
  transition: opacity .3s, transform .3s; box-shadow: 0 8px 20px rgba(217,164,65,.4);
}
.to-top.show { opacity: 1; pointer-events: auto; transform: translateY(0); }

/* ===================================================================
   Scroll reveal
   =================================================================== */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ===================================================================
   Responsive
   =================================================================== */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-img img { height: 340px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .beaches { background-attachment: scroll; }
}

@media (max-width: 680px) {
  .section { padding: 80px 0; }
  .nav {
    position: fixed; top: 0; right: -100%;
    width: 75%; max-width: 320px; height: 100vh;
    background: var(--blue-deep);
    flex-direction: column; justify-content: center; gap: 28px;
    transition: right .4s var(--ease); padding: 40px;
  }
  .nav.open { right: 0; }
  .nav-link { color: var(--white) !important; font-size: 1.2rem; }
  .nav-toggle { display: flex; }
  .lang-switch { margin-left: auto; margin-right: 16px; }
  .lang-switch button { font-size: 1.1rem; }
  .cards, .gallery-grid, .beach-list { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .stats { gap: 26px; flex-wrap: wrap; }
}