/* ============================================
   GS Hairdresser Salon — Premium Stylesheet
   ============================================ */

/* ── CSS Variables ─────────────────────────── */
:root {
  --color-bg:          #FAF8F5;
  --color-bg-alt:      #F5F0EA;
  --color-bg-dark:     #1A1A1A;
  --color-primary:     #1A1A1A;
  --color-accent:      #B8956A;
  --color-accent-light:#D4B896;
  --color-accent-hover:#A07D55;
  --color-text:        #333333;
  --color-text-light:  #7A7A7A;
  --color-text-muted:  #9B9B9B;
  --color-border:      #E5DDD3;
  --color-border-light:#EDE8E1;
  --color-white:       #FFFFFF;
  --color-card:        #FFFFFF;

  --font-heading: 'Playfair Display', 'Georgia', serif;
  --font-body: 'DM Sans', 'Helvetica Neue', Arial, sans-serif;

  --section-py: clamp(80px, 10vw, 140px);
  --container-max: 1200px;
  --container-px: clamp(20px, 5vw, 40px);
  --transition-base: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition-base); }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 var(--container-px); }

/* ── Typography ────────────────────────────── */
h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 600; line-height: 1.2; color: var(--color-primary); }
.section-subtitle {
  font-family: var(--font-body); font-size: 0.8rem; font-weight: 500;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--color-accent);
  margin-bottom: 12px; display: block;
}
.section-title { font-size: clamp(2rem, 4.5vw, 3.2rem); margin-bottom: 20px; }
.section-desc { font-size: 1.05rem; color: var(--color-text-light); max-width: 600px; line-height: 1.8; }
.section-divider { width: 60px; height: 1.5px; background: var(--color-accent); margin: 0 auto 24px; }

/* ── Buttons ───────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 32px; font-size: 0.85rem; font-weight: 500;
  letter-spacing: 0.08em; text-transform: uppercase; border-radius: 2px;
  transition: all var(--transition-base); white-space: nowrap;
}
.btn-primary { background: var(--color-primary); color: var(--color-white); }
.btn-primary:hover { background: var(--color-accent); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--color-primary); border: 1.5px solid var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: var(--color-white); transform: translateY(-1px); }
.btn-outline-light { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.5); }
.btn-outline-light:hover { background: rgba(255,255,255,0.15); color: #fff; transform: translateY(-1px); }
.btn-accent { background: var(--color-accent); color: var(--color-white); }
.btn-accent:hover { background: var(--color-accent-hover); transform: translateY(-1px); }

/* ── Header ────────────────────────────────── */
/* Header — transparent over hero, frosted when scrolled */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 0 var(--container-px); transition: all var(--transition-base);
}
.header.scrolled {
  background: rgba(250, 248, 245, 0.97);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 20px rgba(0,0,0,0.06);
}
.header-inner {
  max-width: var(--container-max); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; height: 80px;
}
.logo { display: flex; align-items: center; gap: 12px; z-index: 1001; }
.logo img { height: 50px; width: auto; border-radius: 50%; }

/* Default state — over hero = white text */
.logo-text { font-family: var(--font-heading); font-size: 1.15rem; font-weight: 600; color: #FFFFFF; letter-spacing: 0.02em; line-height: 1.2; transition: color var(--transition-base); }
.logo-text small { display: block; font-family: var(--font-body); font-size: 0.6rem; font-weight: 400; letter-spacing: 0.25em; text-transform: uppercase; color: var(--color-accent-light); margin-top: 2px; transition: color var(--transition-base); }

/* Scrolled state — dark text */
.header.scrolled .logo-text { color: var(--color-primary); }
.header.scrolled .logo-text small { color: var(--color-accent); }

.nav-desktop { display: flex; align-items: center; gap: 36px; }
/* Default: white nav links over hero */
.nav-desktop a { font-size: 0.82rem; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: rgba(255,255,255,0.9); position: relative; padding: 4px 0; transition: color var(--transition-base); }
.nav-desktop a:hover { color: #FFFFFF; }
.nav-desktop a::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 1.5px; background: var(--color-accent-light); transition: width var(--transition-base); }
.nav-desktop a:hover::after { width: 100%; }
/* Scrolled: dark nav links */
.header.scrolled .nav-desktop a { color: var(--color-text); }
.header.scrolled .nav-desktop a:hover { color: var(--color-primary); }
.header.scrolled .nav-desktop a::after { background: var(--color-accent); }

/* Default: light lang switcher over hero */
.lang-switcher { display: flex; align-items: center; gap: 4px; margin-left: 20px; padding-left: 20px; border-left: 1px solid rgba(255,255,255,0.25); transition: border-color var(--transition-base); }
.lang-btn { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; padding: 5px 8px; border-radius: 2px; color: rgba(255,255,255,0.55); transition: all var(--transition-base); }
.lang-btn:hover { color: #FFFFFF; }
.lang-btn.active { color: var(--color-white); background: rgba(255,255,255,0.2); }
/* Scrolled: dark lang switcher */
.header.scrolled .lang-switcher { border-left-color: var(--color-border); }
.header.scrolled .lang-btn { color: var(--color-text-muted); }
.header.scrolled .lang-btn:hover { color: var(--color-primary); }
.header.scrolled .lang-btn.active { color: var(--color-white); background: var(--color-primary); }

/* Default: white hamburger lines over hero */
.menu-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; z-index: 1001; }
.menu-toggle span { display: block; width: 24px; height: 1.5px; background: #FFFFFF; transition: all var(--transition-base); transform-origin: center; }
/* Scrolled: dark hamburger */
.header.scrolled .menu-toggle span { background: var(--color-primary); }
.menu-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 4px); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -4px); }

.nav-mobile {
  display: none; position: fixed; inset: 0; background: var(--color-bg); z-index: 999;
  flex-direction: column; align-items: center; justify-content: center; gap: 28px;
  opacity: 0; pointer-events: none; transition: opacity var(--transition-base);
}
.nav-mobile.open { opacity: 1; pointer-events: all; }
.nav-mobile a { font-family: var(--font-heading); font-size: 1.6rem; font-weight: 500; color: var(--color-primary); transition: color var(--transition-base); }
.nav-mobile a:hover { color: var(--color-accent); }
.nav-mobile .lang-switcher-mobile { display: flex; gap: 8px; margin-top: 16px; }
.nav-mobile .lang-btn { font-size: 0.85rem; padding: 8px 14px; }

/* ── Hero ──────────────────────────────────── */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; overflow: hidden; background: var(--color-bg-dark); }
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: 0.45; transition: opacity 1s ease; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(26,26,26,0.75) 0%, rgba(26,26,26,0.35) 100%); }
.hero-content { position: relative; z-index: 2; padding: 120px var(--container-px) 80px; max-width: var(--container-max); margin: 0 auto; width: 100%; }
.hero .section-subtitle { color: var(--color-accent-light); font-size: 0.75rem; letter-spacing: 0.3em; margin-bottom: 20px; }
.hero-title { font-family: var(--font-heading); font-size: clamp(2.8rem, 7vw, 5rem); font-weight: 700; line-height: 1.08; color: var(--color-white); margin-bottom: 24px; max-width: 700px; }
.hero-desc { font-size: 1.1rem; color: rgba(255,255,255,0.75); max-width: 520px; line-height: 1.8; margin-bottom: 40px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* Hero animations */
.hero-anim { opacity: 0; transform: translateY(30px); animation: fadeUp 0.8s ease forwards; }
.hero-anim.a1 { animation-delay: 0.2s; }
.hero-anim.a2 { animation-delay: 0.4s; }
.hero-anim.a3 { animation-delay: 0.6s; }
.hero-anim.a4 { animation-delay: 0.8s; }
@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }

/* ── Services ──────────────────────────────── */
.services { padding: var(--section-py) 0; background: var(--color-bg); }
.services-header { text-align: center; margin-bottom: 60px; }
.services-header .section-desc { margin: 0 auto; }
.services-tabs { display: flex; justify-content: center; gap: 8px; margin-bottom: 48px; flex-wrap: wrap; }
.services-tab {
  padding: 10px 24px; font-size: 0.82rem; font-weight: 500; letter-spacing: 0.05em;
  text-transform: uppercase; color: var(--color-text-muted); border: 1px solid var(--color-border);
  border-radius: 2px; transition: all var(--transition-base);
}
.services-tab:hover { color: var(--color-primary); border-color: var(--color-primary); }
.services-tab.active { background: var(--color-primary); color: var(--color-white); border-color: var(--color-primary); }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; }
.service-card {
  background: var(--color-card); border: 1px solid var(--color-border-light);
  padding: 36px 32px; transition: all var(--transition-base); position: relative; overflow: hidden;
}
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--color-accent); transform: scaleX(0); transition: transform var(--transition-base); transform-origin: left;
}
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover { box-shadow: 0 8px 40px rgba(0,0,0,0.06); transform: translateY(-3px); }
.service-card h4 { font-size: 1.15rem; margin-bottom: 10px; }
.service-card p { font-size: 0.92rem; color: var(--color-text-light); margin-bottom: 16px; line-height: 1.7; }
.service-price { font-size: 0.82rem; font-weight: 600; color: var(--color-accent); letter-spacing: 0.05em; }

/* ── Academy ───────────────────────────────── */
.academy { padding: var(--section-py) 0; background: var(--color-bg-alt); }
.academy-header { text-align: center; margin-bottom: 24px; }
.academy-header .section-desc { margin: 0 auto 24px; }
.academy-cert {
  text-align: center; max-width: 650px; margin: 0 auto 56px; padding: 24px 32px;
  background: var(--color-white); border-left: 3px solid var(--color-accent);
  font-size: 0.95rem; color: var(--color-text); line-height: 1.8; font-style: italic;
}
.academy-cert svg { display: inline-block; vertical-align: middle; margin-right: 8px; color: var(--color-accent); }
.courses-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 32px; margin-bottom: 48px; }
.course-card {
  background: var(--color-white); border: 1px solid var(--color-border-light);
  padding: 40px 36px; transition: all var(--transition-base); position: relative;
}
.course-card:hover { box-shadow: 0 12px 48px rgba(0,0,0,0.07); transform: translateY(-4px); }
.course-tag {
  display: inline-block; font-size: 0.7rem; font-weight: 600; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--color-accent); border: 1px solid var(--color-accent);
  padding: 4px 12px; margin-bottom: 16px;
}
.course-card h3 { font-size: 1.4rem; margin-bottom: 14px; }
.course-card > p { font-size: 0.95rem; color: var(--color-text-light); line-height: 1.8; margin-bottom: 20px; }
.course-highlights { list-style: none; margin-bottom: 24px; }
.course-highlights li { font-size: 0.88rem; color: var(--color-text); padding: 6px 0 6px 20px; position: relative; }
.course-highlights li::before { content: ''; position: absolute; left: 0; top: 13px; width: 6px; height: 6px; border-radius: 50%; background: var(--color-accent); }
.course-duration {
  font-size: 0.82rem; font-weight: 600; color: var(--color-accent); letter-spacing: 0.05em;
  text-transform: uppercase; padding-top: 16px; border-top: 1px solid var(--color-border-light);
}
.academy-cta { text-align: center; }

/* ── Gallery ───────────────────────────────── */
.gallery { padding: var(--section-py) 0; background: var(--color-bg); }
.gallery-header { text-align: center; margin-bottom: 48px; }
.gallery-header .section-desc { margin: 0 auto; }
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.gallery-item { position: relative; overflow: hidden; aspect-ratio: 1; background: var(--color-bg-alt); cursor: pointer; }
.gallery-item.tall { grid-row: span 2; aspect-ratio: auto; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-slow); }
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item-overlay {
  position: absolute; inset: 0; background: rgba(26,26,26,0.3); opacity: 0;
  transition: opacity var(--transition-base); display: flex; align-items: center; justify-content: center;
}
.gallery-item:hover .gallery-item-overlay { opacity: 1; }
.gallery-item-overlay svg { color: white; }

/* ── About ─────────────────────────────────── */
.about { padding: var(--section-py) 0; background: var(--color-bg-alt); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-image { position: relative; overflow: hidden; aspect-ratio: 4/5; }
.about-image img { width: 100%; height: 100%; object-fit: cover; }
.about-image::after {
  content: ''; position: absolute; top: 20px; left: 20px; right: -20px; bottom: -20px;
  border: 1.5px solid var(--color-accent); z-index: -1;
}
.about-content .section-desc { margin-bottom: 4px; }
.about-stats {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
  margin-top: 40px; padding-top: 40px; border-top: 1px solid var(--color-border);
}
.stat-number { font-family: var(--font-heading); font-size: 2.2rem; font-weight: 700; color: var(--color-accent); line-height: 1; margin-bottom: 6px; }
.stat-label { font-size: 0.82rem; color: var(--color-text-muted); letter-spacing: 0.03em; }

/* ── Contact ───────────────────────────────── */
.contact { padding: var(--section-py) 0; background: var(--color-bg); }
.contact-header { text-align: center; margin-bottom: 56px; }
.contact-header .section-desc { margin: 0 auto; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }

.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 0.8rem; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-text); margin-bottom: 8px; }
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 13px 16px; font-family: var(--font-body); font-size: 0.92rem;
  color: var(--color-text); background: var(--color-white); border: 1px solid var(--color-border);
  border-radius: 2px; transition: border-color var(--transition-base); outline: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--color-accent); }
.form-textarea { resize: vertical; min-height: 100px; }
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239B9B9B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-submit-btn { width: 100%; margin-top: 4px; }
.form-input.error, .form-select.error { border-color: #C0392B; }

.form-success { text-align: center; padding: 40px 24px; }
.form-success-icon {
  width: 56px; height: 56px; border-radius: 50%; background: var(--color-accent);
  color: white; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px;
}
.form-success p { font-size: 1.1rem; color: var(--color-text); margin-bottom: 20px; }

.contact-info { padding-top: 12px; }
.contact-info-item { margin-bottom: 32px; }
.contact-info-label { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.15em; text-transform: uppercase; color: var(--color-accent); margin-bottom: 8px; }
.contact-info-value { font-size: 1rem; color: var(--color-text); line-height: 1.8; }
.contact-info-value a { color: var(--color-text); border-bottom: 1px solid var(--color-border); transition: all var(--transition-base); }
.contact-info-value a:hover { color: var(--color-accent); border-color: var(--color-accent); }

.whatsapp-btn {
  display: inline-flex; align-items: center; gap: 10px; padding: 14px 28px;
  background: #25D366; color: white; font-size: 0.85rem; font-weight: 600;
  letter-spacing: 0.04em; border-radius: 2px; margin-top: 8px; transition: all var(--transition-base);
}
.whatsapp-btn:hover { background: #1EB954; transform: translateY(-2px); box-shadow: 0 6px 24px rgba(37,211,102,0.3); }

/* ── Footer ────────────────────────────────── */
.footer { background: var(--color-bg-dark); color: rgba(255,255,255,0.6); padding: 60px 0 40px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 24px; }
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-brand img { height: 44px; border-radius: 50%; }
.footer-brand-text { font-family: var(--font-heading); font-size: 1rem; color: var(--color-white); line-height: 1.3; }
.footer-brand-text small { display: block; font-family: var(--font-body); font-size: 0.68rem; color: rgba(255,255,255,0.45); letter-spacing: 0.12em; text-transform: uppercase; font-weight: 400; margin-top: 2px; }
.footer-links { display: flex; gap: 28px; }
.footer-links a { font-size: 0.82rem; color: rgba(255,255,255,0.5); transition: color var(--transition-base); }
.footer-links a:hover { color: var(--color-accent-light); }
.footer-copy { text-align: center; font-size: 0.78rem; margin-top: 40px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.08); color: rgba(255,255,255,0.35); }

/* ── Floating WhatsApp ─────────────────────── */
.floating-whatsapp {
  position: fixed; bottom: 28px; right: 28px; width: 56px; height: 56px;
  background: #25D366; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4); z-index: 999; transition: all var(--transition-base);
}
.floating-whatsapp:hover { transform: scale(1.08); box-shadow: 0 6px 30px rgba(37,211,102,0.5); }
.floating-whatsapp svg { width: 28px; height: 28px; color: white; }

/* ── Reveal Animation ──────────────────────── */
.reveal { opacity: 0; transform: translateY(32px); transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── Lightbox ──────────────────────────────── */
.lightbox {
  position: fixed; inset: 0; background: rgba(0,0,0,0.92); z-index: 2000;
  display: none; align-items: center; justify-content: center; padding: 40px;
}
.lightbox.open {
  display: flex;
}
.lightbox img { max-width: 90%; max-height: 85vh; object-fit: contain; border-radius: 2px; }
.lightbox-close {
  position: absolute; top: 24px; right: 32px; color: white; font-size: 2rem;
  padding: 8px; cursor: pointer; transition: opacity var(--transition-base); background: none; border: none;
}
.lightbox-close:hover { opacity: 0.7; }

/* ── Responsive ────────────────────────────── */
@media (max-width: 768px) {
  .nav-desktop { display: none; }
  .menu-toggle { display: flex; }
  .nav-mobile { display: flex; }
  .header-inner { height: 68px; }
  .logo img { height: 40px; }
  .hero-content { padding: 100px var(--container-px) 60px; }
  .hero-actions { flex-direction: column; gap: 12px; }
  .hero-actions .btn { width: 100%; text-align: center; }
  .services-grid { grid-template-columns: 1fr; }
  .courses-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-item.tall { grid-row: span 1; aspect-ratio: 1; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-image { max-width: 400px; margin: 0 auto; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
}
@media (max-width: 480px) {
  .gallery-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .services-tabs { gap: 6px; }
  .services-tab { padding: 8px 16px; font-size: 0.75rem; }
}