/* ============================================================
   25th Studio — Stylesheet
   Theme: soft pastel green ("xanh lá pastel nhạt")
   ============================================================ */

:root {
  /* Pastel green palette */
  --green-50:  #f3f8f1;   /* page background tint */
  --green-100: #e7f0e3;   /* soft section background */
  --green-200: #d3e5cd;   /* cards / borders */
  --green-300: #b6d3ad;   /* pastel green accents */
  --green-400: #8fbb83;   /* buttons / highlights */
  --green-500: #6f9f63;   /* hover / deeper accent */
  --green-700: #3f5c39;   /* headings */

  --cream:   #fbfaf5;
  --ink:     #2f3a2c;     /* body text */
  --muted:   #6b7766;     /* secondary text */
  --white:   #ffffff;

  --font-head: "Cormorant Garamond", Georgia, serif;
  --font-body: "Jost", "Segoe UI", system-ui, sans-serif;

  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 18px 40px -24px rgba(63, 92, 57, 0.45);
  --shadow-sm: 0 8px 22px -16px rgba(63, 92, 57, 0.5);
  --maxw: 1140px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 86px; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--green-50);
  line-height: 1.65;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

.nowrap { white-space: nowrap; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

h1, h2, h3 { font-family: var(--font-head); color: var(--green-700); font-weight: 600; line-height: 1.12; }
h1 { font-size: clamp(2.6rem, 6vw, 4.4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: 1.45rem; }

em { font-style: italic; color: var(--green-500); }

.eyebrow {
  font-family: var(--font-body);
  text-transform: uppercase;
  letter-spacing: 0.28em;
  font-size: 0.74rem;
  font-weight: 500;
  color: var(--green-500);
  margin-bottom: 0.9rem;
}

/* ----------------------------- Buttons ----------------------------- */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  padding: 0.85rem 1.7rem;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.btn-primary {
  background: var(--green-400);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--green-500); transform: translateY(-2px); }
.btn-ghost {
  background: transparent;
  color: var(--green-700);
  border: 1.5px solid var(--green-300);
}
.btn-ghost:hover { background: var(--green-100); transform: translateY(-2px); }

/* ----------------------------- Header ----------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(243, 248, 241, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--green-200);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; }

.brand { display: flex; align-items: baseline; gap: 0.35rem; }
.brand-mark { font-family: var(--font-head); font-size: 1.7rem; font-weight: 600; color: var(--green-700); }
.brand-mark sup { font-size: 0.55em; }
.brand-name { font-family: var(--font-head); font-size: 1.25rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--green-500); }

.primary-nav { display: flex; align-items: center; gap: 2rem; }
.primary-nav a { font-size: 0.95rem; font-weight: 400; color: var(--ink); position: relative; transition: color 0.2s; }
.primary-nav a:not(.nav-cta)::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 2px; width: 0;
  background: var(--green-400); transition: width 0.25s var(--ease);
}
.primary-nav a:not(.nav-cta):hover::after { width: 100%; }
.primary-nav a:hover { color: var(--green-700); }
.nav-cta {
  background: var(--green-400); color: var(--white) !important;
  padding: 0.55rem 1.3rem; border-radius: 999px;
  transition: background 0.25s, transform 0.25s;
}
.nav-cta:hover { background: var(--green-500); transform: translateY(-1px); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 26px; height: 2px; background: var(--green-700); border-radius: 2px; transition: transform 0.3s, opacity 0.3s; }

/* ----------------------------- Hero ----------------------------- */
.hero { padding: clamp(3rem, 7vw, 6rem) 0 clamp(4rem, 8vw, 7rem); overflow: hidden; }
.hero-inner { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }
.hero-text h1 { margin: 0.4rem 0 1.2rem; }
.hero-sub { font-size: 1.12rem; color: var(--muted); max-width: 30rem; margin-bottom: 2rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }

.hero-art { position: relative; min-height: 420px; }
.hero-photo {
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
  border: 6px solid var(--white);
}
.hero-photo img { width: 100%; height: 100%; object-fit: cover; }
.hero-photo:first-child { aspect-ratio: 4/5; }
.hero-photo--sm {
  position: absolute; bottom: -32px; left: -28px; width: 46%;
  aspect-ratio: 1/1; z-index: 2;
}
.hero-art::before {
  content: ""; position: absolute; inset: -8% -10% auto auto; width: 60%; aspect-ratio: 1;
  background: radial-gradient(circle, var(--green-200), transparent 70%);
  z-index: -1; top: -6%; right: -8%;
}

/* ----------------------------- Sections ----------------------------- */
.section { padding: clamp(3.5rem, 8vw, 6.5rem) 0; }
.section--soft { background: var(--green-100); }

.section-head { max-width: 640px; margin: 0 auto clamp(2.5rem, 5vw, 3.5rem); text-align: center; }
.section-lead { color: var(--muted); font-size: 1.08rem; margin-top: 0.8rem; }

/* About */
.about-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.about-media { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); border: 6px solid var(--white); }
.about-media img { width: 100%; aspect-ratio: 4/5; object-fit: cover; }
.about-text h2 { margin-bottom: 1.2rem; }
.about-text p { color: var(--muted); margin-bottom: 1rem; }
.about-subhead { font-size: 1.25rem; margin: 1.8rem 0 0.4rem; }
.about-list { list-style: none; display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1.1rem; }
.about-list li {
  background: var(--green-100); color: var(--green-700); border: 1px solid var(--green-200);
  padding: 0.45rem 1.1rem; border-radius: 999px; font-size: 0.9rem;
}

/* Why choose */
.why-grid { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.why-item {
  background: var(--white); border: 1px solid var(--green-200); border-radius: var(--radius);
  padding: 1.6rem 1.5rem; box-shadow: var(--shadow-sm); display: flex; align-items: center; gap: 1rem;
  font-size: 1.02rem; color: var(--ink);
}
.why-item span {
  flex: none; width: 2.6rem; height: 2.6rem; border-radius: 50%;
  background: var(--green-100); color: var(--green-500);
  display: grid; place-items: center; font-family: var(--font-head); font-size: 1.15rem; font-weight: 600;
}

/* Reviews */
.reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6rem; }
.review-card {
  background: var(--white); border: 1px solid var(--green-200); border-radius: var(--radius);
  padding: 2rem 1.8rem; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; gap: 1rem;
}
.stars { color: var(--green-400); letter-spacing: 0.15em; font-size: 1.05rem; }
.review-card blockquote { font-family: var(--font-head); font-size: 1.35rem; line-height: 1.4; color: var(--green-700); font-style: italic; }
.review-card figcaption { color: var(--muted); font-size: 0.95rem; margin-top: auto; }
.reviews-note { text-align: center; color: var(--muted); font-style: italic; margin-top: 2.2rem; font-family: var(--font-head); font-size: 1.1rem; }

/* Gallery — portrait tiles matched to the 3:4 photos so nothing important is cropped */
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; }
.gallery-item {
  position: relative; overflow: hidden; border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm); background: var(--green-100);
  aspect-ratio: 3 / 4;
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; object-position: center; transition: transform 0.6s var(--ease); }
.gallery-item:hover img { transform: scale(1.04); }
.gallery-item figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 1.4rem 1.1rem 0.9rem; color: var(--white); font-family: var(--font-head); font-size: 1.2rem;
  background: linear-gradient(to top, rgba(47, 58, 44, 0.78), transparent);
}

.gallery-item { cursor: zoom-in; }
.gallery-item::after {
  content: "⤢"; position: absolute; top: 0.7rem; right: 0.7rem; z-index: 2;
  width: 2rem; height: 2rem; border-radius: 50%;
  background: rgba(251, 250, 245, 0.85); color: var(--green-700);
  display: grid; place-items: center; font-size: 0.9rem;
  opacity: 0; transform: scale(0.8); transition: opacity 0.25s, transform 0.25s;
}
.gallery-item:hover::after { opacity: 1; transform: scale(1); }

/* Lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: 100;
  display: flex; align-items: center; justify-content: center;
  padding: clamp(1rem, 4vw, 3rem);
  background: rgba(31, 39, 28, 0.92);
  opacity: 0; visibility: hidden; transition: opacity 0.28s var(--ease);
}
.lightbox.open { opacity: 1; visibility: visible; }
.lightbox__img {
  max-width: 100%; max-height: 100%;
  width: auto; height: auto; border-radius: var(--radius-sm);
  box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.6);
  transform: scale(0.96); transition: transform 0.28s var(--ease);
}
.lightbox.open .lightbox__img { transform: scale(1); }
.lightbox__caption {
  position: absolute; bottom: max(1rem, env(safe-area-inset-bottom)); left: 0; right: 0;
  text-align: center; color: var(--cream); font-family: var(--font-head);
  font-size: 1.2rem; font-style: italic; pointer-events: none;
}
.lightbox__close, .lightbox__nav {
  position: absolute; z-index: 2; border: 0; cursor: pointer;
  background: rgba(251, 250, 245, 0.14); color: var(--cream);
  backdrop-filter: blur(4px); transition: background 0.2s, transform 0.2s;
}
.lightbox__close {
  top: max(1rem, env(safe-area-inset-top)); right: 1rem;
  width: 2.8rem; height: 2.8rem; border-radius: 50%; font-size: 1.6rem; line-height: 1;
}
.lightbox__nav {
  top: 50%; transform: translateY(-50%);
  width: 3rem; height: 3rem; border-radius: 50%; font-size: 1.8rem; line-height: 1;
}
.lightbox__nav--prev { left: 1rem; }
.lightbox__nav--next { right: 1rem; }
.lightbox__close:hover, .lightbox__nav:hover { background: rgba(251, 250, 245, 0.28); }
.lightbox__nav:hover { transform: translateY(-50%) scale(1.08); }
body.lightbox-open { overflow: hidden; }

/* Academy */
/* Two clickable training photos that lead into the programs — reuse the gallery
   tile look (.gallery-item) so they match the Pictures section and open the lightbox. */
.academy-gallery {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem;
  max-width: 700px; margin: 0 auto clamp(2.5rem, 5vw, 3.5rem);
}
.academy-gallery .gallery-item img { object-position: center 32%; }
.program-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.6rem; margin-bottom: clamp(2.5rem, 5vw, 3.5rem); }
.program-card {
  background: var(--white); border: 1px solid var(--green-200); border-radius: var(--radius);
  padding: 2.2rem 2rem; box-shadow: var(--shadow-sm);
}
.course-num { font-family: var(--font-head); font-size: 2.2rem; color: var(--green-300); display: block; margin-bottom: 0.2rem; }
.program-card h3 { margin-bottom: 0.5rem; }
.program-tag { color: var(--green-500); font-style: italic; font-family: var(--font-head); font-size: 1.05rem; margin-bottom: 0.5rem; }
.program-card > p:not(.program-tag) { color: var(--muted); margin-bottom: 1.4rem; }
.program-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; }
.program-cols h4 { font-family: var(--font-body); text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.74rem; color: var(--green-500); font-weight: 600; margin-bottom: 0.9rem; }

.ticks { list-style: none; display: flex; flex-direction: column; gap: 0.7rem; }
.ticks li { position: relative; padding-left: 1.9rem; color: var(--ink); font-size: 0.96rem; }
.ticks li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  width: 1.3rem; height: 1.3rem; border-radius: 50%;
  background: var(--green-300); color: var(--green-700);
  display: grid; place-items: center; font-size: 0.75rem; font-weight: 600;
}
.academy-cta {
  text-align: center; background: var(--white); border: 1px solid var(--green-200);
  border-radius: var(--radius); padding: 2.5rem 1.5rem; box-shadow: var(--shadow-sm);
}
.academy-cta p { color: var(--muted); margin-bottom: 1.4rem; font-size: 1.08rem; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1.3fr 0.7fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.contact-info h2 { margin-bottom: 0.8rem; }
.contact-list { list-style: none; margin: 2rem 0 1.8rem; display: flex; flex-direction: column; gap: 1.1rem; }
.contact-list li { display: grid; grid-template-columns: 110px 1fr; align-items: baseline; gap: 1rem; padding-bottom: 1.1rem; border-bottom: 1px solid var(--green-200); }
.contact-label { text-transform: uppercase; letter-spacing: 0.16em; font-size: 0.72rem; color: var(--green-500); font-weight: 500; }
.contact-list a:hover { color: var(--green-500); }
.btn-book { margin-top: 0.5rem; }
.contact-hint { font-size: 0.82rem; color: var(--muted); font-style: italic; margin-top: 0.7rem; }

.contact-hours { background: var(--green-100); border: 1px solid var(--green-200); border-radius: var(--radius); padding: 2rem 1.8rem; }
.contact-hours h3 { margin-bottom: 1.2rem; }
.hours-list { list-style: none; display: flex; flex-direction: column; gap: 0.9rem; }
.hours-list li { display: flex; justify-content: space-between; gap: 1rem; font-size: 0.96rem; color: var(--ink); }
.hours-list .closed { color: var(--green-500); font-style: italic; }
.hours-note { margin-top: 1.2rem; font-size: 0.85rem; color: var(--muted); font-style: italic; }

/* ----------------------------- Footer ----------------------------- */
.site-footer { background: var(--green-700); color: var(--green-100); padding: 3rem 0 2rem; }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 1.4rem; text-align: center; }
.footer-brand { display: flex; align-items: baseline; gap: 0.35rem; }
.footer-brand .brand-mark, .footer-brand .brand-name { color: var(--cream); }
.footer-nav { display: flex; flex-wrap: wrap; gap: 1.6rem; }
.footer-nav a { font-size: 0.92rem; color: var(--green-100); transition: color 0.2s; }
.footer-nav a:hover { color: var(--white); }
.footer-copy { font-size: 0.85rem; color: var(--green-200); }

/* ----------------------------- Mobile sticky CTA ----------------------------- */
.mobile-cta { display: none; }
.mobile-cta.is-hidden { transform: translateY(120%); opacity: 0; pointer-events: none; }

/* ----------------------------- Reveal animation ----------------------------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

/* ----------------------------- Responsive ----------------------------- */
@media (max-width: 900px) {
  .hero-inner, .about-grid, .contact-grid { grid-template-columns: 1fr; }
  /* Text first so the "About" anchor lands on the heading, not the photo */
  .about-text { order: -1; }
  .about-media { max-width: 100%; }
  /* Compact landscape banner instead of a screen-filling portrait */
  .about-media img { aspect-ratio: 16 / 10; max-height: 300px; object-position: center 38%; }
  .reviews-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .program-grid { grid-template-columns: 1fr; }
  /* 3 portrait tiles: first two side by side, the before/after spans full width (no orphan tile) */
  .gallery-grid { grid-template-columns: 1fr 1fr; }
  .gallery-item:last-child { grid-column: 1 / -1; aspect-ratio: 4 / 3; }
  .hero-art { max-width: 460px; margin: 0 auto; }

  .nav-toggle { display: flex; }
  .primary-nav {
    position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--green-50); border-bottom: 1px solid var(--green-200);
    padding: 0.5rem 24px 1.2rem;
    transform: translateY(-12px); opacity: 0; pointer-events: none;
    transition: opacity 0.25s, transform 0.25s;
  }
  .primary-nav.open { transform: none; opacity: 1; pointer-events: auto; }
  .primary-nav a { padding: 0.9rem 0; border-bottom: 1px solid var(--green-200); }
  .primary-nav a:not(.nav-cta)::after { display: none; }
  .nav-cta { text-align: center; margin-top: 0.8rem; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  /* Hide the "Book Now" nav pill on mobile — the sticky bar handles it */
  .nav-cta { display: none; }

  /* Sticky booking bar */
  .mobile-cta {
    display: flex; gap: 0.7rem; align-items: center;
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
    padding: 0.7rem 16px calc(0.7rem + env(safe-area-inset-bottom));
    background: rgba(251, 250, 245, 0.92);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--green-200);
    box-shadow: 0 -8px 24px -18px rgba(63, 92, 57, 0.6);
    transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
  }
  .mobile-cta .btn-primary { flex: 1; text-align: center; padding: 0.9rem 1rem; }
  .mobile-cta__ig {
    flex: none; width: 48px; height: 48px; border-radius: 14px;
    display: grid; place-items: center;
    color: var(--green-700); background: var(--green-100); border: 1px solid var(--green-200);
  }
  /* Keep the footer clear of the sticky bar */
  body { padding-bottom: 76px; }
}

@media (max-width: 540px) {
  .container { padding: 0 18px; }
  .section { padding: 3rem 0; }
  h1 { font-size: clamp(2.3rem, 11vw, 3rem); }

  /* Hero: roomier, no overlap clutter on small screens */
  .hero { padding: 2rem 0 3rem; }
  .eyebrow { letter-spacing: 0.2em; }
  .hero-sub { font-size: 1.05rem; }
  .hero-actions { gap: 0.7rem; }
  .hero-actions .btn {
    flex: 1; text-align: center; white-space: nowrap;
    padding: 0.7rem 0.6rem; font-size: 0.9rem;
  }
  .hero-art { max-width: 100%; }
  .hero-photo--sm { width: 40%; bottom: -20px; left: -12px; border-width: 4px; }

  .program-card { padding: 1.8rem 1.4rem; }
  .program-cols { grid-template-columns: 1fr; gap: 0.4rem 1.4rem; }
  /* Phones: stack all three full-width so lash detail stays large and uncropped */
  .gallery-grid { grid-template-columns: 1fr; gap: 0.7rem; }
  .gallery-item:last-child { grid-column: auto; aspect-ratio: 3 / 4; }
  .gallery-item figcaption { font-size: 1rem; padding: 1rem 0.8rem 0.7rem; }
  .review-card { padding: 1.7rem 1.5rem; }
  .review-card blockquote { font-size: 1.2rem; }
  .contact-list li { grid-template-columns: 1fr; gap: 0.2rem; }
  .academy-cta { padding: 2rem 1.3rem; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}