/* ============================================================
   直驗室 The Upright Lab — Main Stylesheet
   Brand: Coral #FF8D6B · Dark #26222E · Beige #F5EFE4
   Fonts: Noto Sans TC (ZH) · Work Sans (EN)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Work+Sans:wght@400;500;600;700&family=Noto+Sans+TC:wght@400;500;700&display=swap');

/* === ROOT ================================================== */
:root {
  --coral:       #FF8D6B;
  --coral-dark:  #e87a58;
  --dark:        #26222E;
  --dark-2:      #1a1720;
  --beige:       #F5EFE4;
  --beige-mid:   #EDE3D5;
  --white:       #FFFFFF;
  --text:        #26222E;
  --text-light:  #5C5663;
  --border:      rgba(38, 34, 46, 0.12);

  --font-zh: 'Noto Sans TC', sans-serif;
  --font-en: 'Work Sans', sans-serif;
  --font-tm: 'Times New Roman', Times, serif;

  --max-w:    1080px;
  --nav-h:    68px;
  --radius:   2px;
}

/* === RESET ================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-zh);
  color: var(--text);
  background: var(--white);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  /* Prevent font size inflation on iPhone landscape */
  -webkit-text-size-adjust: 100%;
}
img { max-width: 100%; display: block; }
a {
  color: inherit; text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}
ul { list-style: none; }

/* === TYPOGRAPHY ============================================ */
h1 { font-size: clamp(2rem, 5vw, 3.25rem); font-weight: 700; line-height: 1.2; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.4rem, 3vw, 2rem);  font-weight: 700; line-height: 1.3; }
h3 { font-size: clamp(1rem, 2vw, 1.2rem);  font-weight: 700; line-height: 1.4; }
h4 { font-size: 0.95rem; font-weight: 700; }
p  { font-size: 1rem; }
p + p { margin-top: 18px; }

.en { font-family: var(--font-en); }
.tm { font-family: var(--font-tm); font-weight: 700; }
.footer__trademark {
  font-size: 0.7rem; color: rgba(255,255,255,0.18);
  text-align: center; line-height: 1.7;
  margin-top: 20px; padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.07);
}
.label {
  font-family: var(--font-en);
  font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--coral);
}
.divider { width: 40px; height: 3px; background: var(--coral); margin: 20px 0 28px; }

/* === LAYOUT ================================================ */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section    { padding: 88px 0; }
.section--lg { padding: 120px 0; }
.section--sm { padding: 56px 0; }
.section--beige  { background: var(--beige); }
.section--dark   { background: var(--dark); }
.section--dark-2 { background: var(--dark-2); }

/* === NAV =================================================== */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(255,255,255,0.97);
  border-bottom: 1px solid var(--border);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  z-index: 200;
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
}
.nav__logo img { height: 32px; }
.nav__links {
  display: flex; align-items: center; gap: 28px;
}
.nav__links a {
  font-size: 0.875rem; font-weight: 500;
  color: var(--text); opacity: 0.6;
  transition: opacity 0.2s;
}
.nav__links a:hover,
.nav__links a.active { opacity: 1; }
.nav__links .btn--nav {
  background: var(--coral); color: var(--white) !important;
  opacity: 1 !important;
  padding: 8px 18px; border-radius: var(--radius);
  font-size: 0.825rem !important; font-weight: 600 !important;
  transition: background 0.2s;
}
.nav__links .btn--nav:hover { background: var(--coral-dark); }

.nav__hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; background: none; border: none; padding: 4px;
}
.nav__hamburger span { display: block; width: 22px; height: 2px; background: var(--dark); transition: 0.25s; }
.nav__hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; }
.nav__hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav__mobile {
  display: none; flex-direction: column;
  position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0;
  background: var(--white); z-index: 190;
  padding: 32px 24px; overflow-y: auto;
}
.nav__mobile.open { display: flex; }
.nav__mobile a {
  font-size: 1.1rem; font-weight: 500;
  padding: 16px 0; border-bottom: 1px solid var(--border);
  color: var(--text);
}
.nav__mobile .btn--nav {
  margin-top: 24px; text-align: center;
  padding: 14px 20px; border-radius: var(--radius);
  background: var(--coral); color: var(--white); font-weight: 600;
}

/* === BUTTONS =============================================== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 28px; border-radius: var(--radius);
  font-family: var(--font-zh); font-size: 0.95rem; font-weight: 600;
  cursor: pointer; border: none; transition: 0.2s;
  text-decoration: none; white-space: nowrap;
  /* iOS: prevent tap highlight and ensure min tap size */
  -webkit-tap-highlight-color: transparent;
  min-height: 44px;
}
.btn--primary  { background: var(--coral); color: var(--white); }
.btn--primary:hover  { background: var(--coral-dark); }
.btn--outline  { background: transparent; color: var(--white); border: 1.5px solid rgba(255,255,255,0.4); }
.btn--outline:hover  { border-color: var(--white); background: rgba(255,255,255,0.08); }
.btn--ghost    { background: transparent; color: var(--coral); border: 1.5px solid var(--coral); }
.btn--ghost:hover    { background: var(--coral); color: var(--white); }
.btn--dark     { background: var(--dark); color: var(--white); }
.btn--dark:hover     { background: var(--dark-2); }

/* === PAGE HEADER =========================================== */
.page-header {
  background: var(--dark);
  padding: calc(var(--nav-h) + 72px) 0 72px;
}
.page-header .label { margin-bottom: 16px; }
.page-header h1 { color: var(--white); }
.page-header p  { color: rgba(255,255,255,0.55); margin-top: 16px; max-width: 520px; font-size: 1rem; }

/* === HERO ================================================== */
.hero {
  min-height: 100vh;
  background: var(--dark);
  display: flex; align-items: center;
  padding-top: var(--nav-h);
  position: relative; overflow: hidden;
}
.hero__image {
  position: absolute; inset: 0;
  background: url('../images/studio.jpg') center/cover no-repeat;
  opacity: 0.18;
}
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(26,23,32,0.95) 40%, rgba(38,34,46,0.8) 100%);
}
.hero__content { position: relative; z-index: 1; max-width: 600px; }
.hero .label   { margin-bottom: 24px; }
.hero h1       { color: var(--white); margin-bottom: 24px; }
.hero h1 em    { color: var(--coral); font-style: normal; }
.hero__sub     { color: rgba(255,255,255,0.6); font-size: 1.05rem; max-width: 460px; margin-bottom: 40px; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* === INTRO STRIP =========================================== */
.intro-strip {
  background: var(--coral);
  padding: 28px 0;
  overflow: hidden;
}
.intro-strip__inner {
  display: flex; gap: 48px; align-items: center;
  white-space: nowrap; justify-content: center; flex-wrap: wrap;
}
.intro-strip__item {
  font-family: var(--font-en); font-size: 0.8rem;
  font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--white); opacity: 0.9;
}
.intro-strip__dot {
  width: 4px; height: 4px; border-radius: 50%;
  background: rgba(255,255,255,0.5);
  flex-shrink: 0;
}

/* === SERVICES ============================================== */
.services__grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 2px; margin-top: 56px;
  background: var(--border);
}
.service-card {
  background: var(--white);
  padding: 40px 32px;
  border-top: 3px solid transparent;
  transition: border-color 0.25s;
}
@media (hover: hover) { .service-card:hover { border-color: var(--coral); } }
.service-card .label { margin-bottom: 20px; }
.service-card h3     { margin-bottom: 12px; }
.service-card p      { color: var(--text-light); font-size: 0.925rem; line-height: 1.75; }
.service-card__price { margin-top: 20px; font-size: 0.875rem; color: var(--text-light); }
.service-card__price strong { color: var(--coral); font-size: 1rem; }

/* === PRICING =============================================== */
.pricing__grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 48px; margin-top: 56px;
}
.pricing-block__title  { margin-bottom: 6px; }
.pricing-block__sub    { font-size: 0.875rem; color: var(--text-light); margin-bottom: 28px; }

.pricing-table { width: 100%; border-collapse: collapse; }
.pricing-table th {
  text-align: left; padding: 0 0 10px;
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.06em;
  color: var(--text-light); border-bottom: 2px solid var(--border);
}
.pricing-table td {
  padding: 11px 0; font-size: 0.9rem;
  border-bottom: 1px solid var(--border);
}
.pricing-table td:last-child { text-align: right; font-family: var(--font-en); font-weight: 600; }
.pricing-table tr:last-child td { border-bottom: none; }
.price-coral { color: var(--coral); }

.pricing-notes {
  margin-top: 20px; padding: 16px 20px;
  background: var(--beige-mid); border-radius: var(--radius);
  font-size: 0.85rem; color: var(--text-light); line-height: 1.9;
}

/* === CTA BAND ============================================== */
.cta-band {
  background: var(--coral);
  padding: 72px 0; text-align: center;
}
.cta-band h2    { color: var(--white); margin-bottom: 12px; }
.cta-band p     { color: rgba(255,255,255,0.8); margin-bottom: 36px; font-size: 1rem; }
.cta-band .btn--outline { border-color: rgba(255,255,255,0.7); }

/* === ABOUT STORY =========================================== */
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: start;
}
.about-grid__text { color: var(--text-light); }
.about-grid__text p { line-height: 1.9; }
.about-grid__visual {
  background: var(--beige-mid);
  aspect-ratio: 4/5; overflow: hidden;
}
.about-grid__visual img { width: 100%; height: 100%; object-fit: cover; }

/* === INSTRUCTORS =========================================== */
.instructors__grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px; margin-top: 56px;
}
.instructor-card {
  background: var(--beige);
  border-top: 3px solid transparent;
  transition: border-color 0.25s;
  overflow: hidden;
}
.instructor-card__photo {
  width: 100%; aspect-ratio: 1 / 1;
  overflow: hidden; background: var(--beige-mid);
}
.instructor-card__photo img {
  width: 100%; height: 100%; object-fit: cover;
  object-position: center top;
  transition: transform 0.4s ease;
}
@media (hover: hover) {
  .instructor-card:hover { border-color: var(--coral); }
  .instructor-card:hover .instructor-card__photo img { transform: scale(1.03); }
}
.instructor-card__body { padding: 28px 28px 32px; }
.instructor-card .label { margin-bottom: 14px; }
.instructor-card__name    { font-size: 1.2rem; font-weight: 700; }
.instructor-card__name-en { font-family: var(--font-en); font-size: 0.8rem; color: var(--text-light); margin-bottom: 20px; margin-top: 2px; }
.instructor-card__bio     { font-size: 0.875rem; color: var(--text-light); line-height: 1.8; }
.instructor-card__fit {
  margin-top: 20px; padding: 14px 16px;
  background: rgba(255,141,107,0.1);
  border-left: 3px solid var(--coral);
  font-size: 0.84rem; line-height: 1.75; color: var(--dark);
}
.instructor-card__placeholder {
  font-size: 0.875rem; color: var(--text-light); font-style: italic;
}

.certs-toggle {
  display: flex; align-items: center; gap: 6px;
  background: none; border: none; cursor: pointer;
  font-family: var(--font-zh); font-size: 0.8rem; font-weight: 600;
  color: var(--coral); padding: 10px 0 0; margin-top: 4px;
}
.certs-toggle svg { transition: transform 0.2s; }
.certs-toggle.open svg { transform: rotate(180deg); }
.certs-list { display: none; margin-top: 10px; }
.certs-list.open { display: block; }
.certs-list li {
  font-size: 0.78rem; color: var(--text-light); font-family: var(--font-en);
  padding: 5px 0; border-bottom: 1px solid var(--border);
  line-height: 1.5;
}
.certs-list li:last-child { border-bottom: none; }

/* === SCHEDULE ============================================== */
.schedule__week {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 24px; margin-top: 56px;
}
.schedule-card {
  background: var(--dark); color: var(--white);
  padding: 40px 36px;
}
.schedule-card .label { margin-bottom: 16px; }
.schedule-card__time  {
  font-family: var(--font-en); font-size: 2.25rem;
  font-weight: 700; line-height: 1; margin-bottom: 12px;
}
.schedule-card__info  { font-size: 0.9rem; color: rgba(255,255,255,0.55); line-height: 1.7; }

.schedule-pricing { margin-top: 64px; }
.schedule-pricing h3 { margin-bottom: 28px; }
.schedule-pricing-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 2px; background: var(--border);
}
.schedule-price-card {
  background: var(--white); padding: 28px 24px;
}
.schedule-price-card__label { font-size: 0.8rem; color: var(--text-light); margin-bottom: 8px; }
.schedule-price-card__amount {
  font-family: var(--font-en); font-size: 1.75rem;
  font-weight: 700; color: var(--dark); line-height: 1;
}
.schedule-price-card__unit  { font-size: 0.8rem; color: var(--text-light); margin-top: 4px; }
.schedule-price-card--featured .schedule-price-card__amount { color: var(--coral); }

/* === TRAINING ============================================== */
.training-path { margin-top: 56px; }
.training-step {
  display: flex; gap: 32px;
  padding: 36px 0; border-top: 1px solid var(--border);
}
.training-step:last-child { border-bottom: 1px solid var(--border); }
.training-step__num {
  font-family: var(--font-en); font-size: 2.25rem; font-weight: 700;
  color: var(--coral); opacity: 0.25; min-width: 52px; line-height: 1; flex-shrink: 0;
}
.training-step__body h3  { margin-bottom: 10px; }
.training-step__body p   { font-size: 0.925rem; color: var(--text-light); }

.training-news { margin-top: 56px; }
.training-news-item {
  padding: 28px 0; border-bottom: 1px solid var(--border);
  display: flex; gap: 32px; align-items: flex-start;
}
.training-news-item:first-child { border-top: 1px solid var(--border); }
.training-news-item__date {
  font-family: var(--font-en); font-size: 0.8rem; font-weight: 600;
  color: var(--coral); min-width: 80px; padding-top: 3px;
}
.training-news-item h4 { margin-bottom: 6px; }
.training-news-item p  { font-size: 0.875rem; color: var(--text-light); }

.rental-info { margin-top: 56px; }
.rental-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 2px; background: var(--border); margin-top: 32px;
}
.rental-card {
  background: var(--beige); padding: 32px 28px;
}
.rental-card h4    { margin-bottom: 8px; }
.rental-card p     { font-size: 0.875rem; color: var(--text-light); }
.rental-card__rate {
  font-family: var(--font-en); font-size: 1.5rem;
  font-weight: 700; color: var(--coral); margin: 12px 0 4px;
}

/* === CONTACT SECTION ======================================= */
.contact-section { background: var(--dark); padding: 88px 0; }
.contact-section h2 { color: var(--white); margin-bottom: 8px; }
.contact-section__sub { color: rgba(255,255,255,0.5); margin-bottom: 48px; }
.contact-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 32px; margin-bottom: 48px;
}
.contact-item__label {
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em;
  color: rgba(255,255,255,0.35); margin-bottom: 8px; text-transform: uppercase;
  font-family: var(--font-en);
}
.contact-item__value { color: var(--white); font-size: 0.925rem; line-height: 1.7; }
.contact-item__value a { color: var(--coral); }

/* === NOTICE BOX ============================================ */
.notice {
  padding: 18px 22px;
  background: rgba(255,141,107,0.1);
  border-left: 3px solid var(--coral);
  font-size: 0.875rem; color: var(--text-light); line-height: 1.8;
  margin-top: 24px;
}

/* === FOOTER ================================================ */
.footer { background: var(--dark-2); padding: 40px 0; }
.footer__inner {
  display: flex; align-items: center;
  justify-content: space-between; flex-wrap: wrap; gap: 20px;
}
.footer__logo img  { height: 26px; }
.footer__copy      { font-size: 0.78rem; color: rgba(255,255,255,0.28); }
.footer__links     { display: flex; gap: 24px; }
.footer__links a   {
  font-size: 0.78rem; color: rgba(255,255,255,0.35);
  transition: color 0.2s;
}
.footer__links a:hover { color: rgba(255,255,255,0.75); }

/* === RESPONSIVE ============================================ */
@media (max-width: 920px) {
  .nav__links  { display: none; }
  .nav__hamburger { display: flex; }

  .services__grid       { grid-template-columns: 1fr; }
  .pricing__grid        { grid-template-columns: 1fr; }
  .about-grid           { grid-template-columns: 1fr; gap: 40px; }
  .instructors__grid    { grid-template-columns: repeat(2, 1fr); }
  .schedule__week       { grid-template-columns: 1fr; }
  .schedule-pricing-grid { grid-template-columns: 1fr; }
  .rental-grid          { grid-template-columns: 1fr; }
  .contact-grid         { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  html { font-size: 17.5px; }

  .section   { padding: 64px 0; }
  .hero__actions { flex-direction: column; }
  .instructors__grid  { grid-template-columns: 1fr; }
  .contact-grid       { grid-template-columns: 1fr; }
  .footer__inner      { flex-direction: column; align-items: flex-start; }
  .about-grid__visual { display: none; }
  .intro-strip__dot   { display: none; }

  /* Pricing tables: scroll horizontally on small screens */
  .pricing-block { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .pricing-table { min-width: 420px; }
  .pricing-table th,
  .pricing-table td { font-size: 0.8rem; padding: 9px 4px; }
  .pricing-table th:first-child,
  .pricing-table td:first-child { min-width: 120px; }

  /* Juliu photo section */
  .juliu-grid { grid-template-columns: 1fr !important; gap: 32px !important; }

  /* Page headers: tighter on mobile */
  .page-header { padding: calc(var(--nav-h) + 48px) 0 48px; }

  /* Service cards: tighter padding */
  .service-card { padding: 28px 20px; }
  .instructor-card__body { padding: 20px 20px 24px; }

  /* Schedule cards */
  .schedule-card { padding: 28px 24px; }
  .schedule-card__time { font-size: 1.75rem; }

  /* Training steps */
  .training-step { gap: 20px; }
  .training-step__num { font-size: 1.75rem; min-width: 40px; }

  /* Posts grid */
  .posts-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   直說 — Posts
   ============================================================ */

.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 28px;
  margin-top: 8px;
}

.post-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.post-card:hover {
  border-color: var(--coral);
  box-shadow: 0 4px 20px rgba(0,0,0,0.07);
}

.post-card__category {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--coral);
}

.post-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--dark);
}

.post-card__excerpt {
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--text-light);
  flex: 1;
}

.post-card__date {
  font-size: 0.75rem;
  color: var(--text-light);
  opacity: 0.6;
  margin-top: 4px;
}

.posts-empty {
  text-align: center;
  padding: 96px 0;
  color: var(--text-light);
  font-size: 0.9375rem;
  letter-spacing: 0.02em;
}

/* ============================================================
   直說 — Article Page
   ============================================================ */

.post-hero {
  width: 100%;
  max-height: 520px;
  overflow: hidden;
  margin-top: var(--nav-h);
}

.post-hero img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  object-position: center 30%;
  display: block;
}

.post-article {
  padding: 64px 0 96px;
}

.post-article__inner {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 24px;
}

.post-back {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--coral);
  text-decoration: none;
  margin-bottom: 24px;
}

.post-back::before {
  content: '← ';
}

.post-header {
  margin-bottom: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}

.post-header__category {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--coral);
  margin-bottom: 12px;
}

.post-header h1 {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 16px;
  color: var(--dark);
}

.post-header__meta {
  font-size: 0.8125rem;
  color: var(--text-light);
  opacity: 0.65;
}

.post-body {
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--text);
}

.post-body p {
  margin-bottom: 1.5em;
}

.post-body h2 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 2.5em 0 0.75em;
  color: var(--dark);
}

.post-body h3 {
  font-size: 1rem;
  font-weight: 700;
  margin: 2em 0 0.5em;
  color: var(--dark);
}

.post-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

@media (max-width: 600px) {
  .post-hero img { height: 280px; }
  .post-article { padding: 40px 0 72px; }
  .post-cta { flex-direction: column; }
  .post-cta .btn { text-align: center; }
}