/* Platinum Taekwon-Do – Mockup Styles */

@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@400;500;600;700&family=Source+Sans+3:wght@400;600;700&display=swap');

:root {
  --font-display: 'Oswald', sans-serif;
  --font-body: 'Source Sans 3', sans-serif;
  --text-overline: 12px;
  --text-caption: 14px;
  --text-body: 16px;
  --text-body-lg: 18px;
  --text-h6: 14px;
  --text-h5: 16px;
  --text-h4: 20px;
  --text-h3: 24px;
  --text-h2: 32px;
  --text-h1: 48px;
  --text-display: 64px;
  --color-slate: #1E2128;
  --color-itf-blue: #1E3A8A;
  --color-deep-red: #9B1B30;
  --color-warm-white: #F5F3EF;
  --color-mat-grey: #6B7280;
  --color-floor-wood: #A67B5B;
  --color-belt-black: #0D0F12;
  --color-belt-white: #FFFFFF;
  --color-text-primary: #1E2128;
  --color-text-secondary: #4B5563;
  --color-text-inverse: #F5F3EF;
  --color-link: #1E3A8A;
  --color-link-hover: #9B1B30;
  --color-border: #D1D5DB;
  --color-border-strong: #9CA3AF;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.65;
  color: var(--color-text-primary);
  background: var(--color-belt-white);
}

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

a { color: var(--color-link); text-decoration: underline; text-underline-offset: 2px; }
a:hover { color: var(--color-link-hover); }

:focus-visible { outline: 2px solid var(--color-itf-blue); outline-offset: 2px; }

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-itf-blue);
  color: var(--color-belt-white);
  padding: 8px 16px;
  z-index: 200;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 14px;
}
.skip-link:focus { top: 0; }

.container { width: 100%; max-width: 1200px; margin-inline: auto; padding-inline: var(--space-5); }

/* Navigation */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 64px;
  background: var(--color-slate);
  z-index: 100;
  border-bottom: 1px solid rgba(245,243,239,0.1);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-warm-white);
  text-decoration: none;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  white-space: nowrap;
}

.nav-logo:hover { color: var(--color-floor-wood); }

.nav-links {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 4px;
}

.nav-links a {
  display: block;
  color: var(--color-warm-white);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 8px 12px;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--color-floor-wood); }

.nav-toggle {
  width: 48px;
  height: 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 0;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-warm-white);
  transition: transform 150ms ease, opacity 150ms ease;
}

.nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(8px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-8px) rotate(-45deg); }

.nav-mobile {
  display: none;
  position: fixed;
  top: 64px; left: 0; right: 0; bottom: 0;
  background: var(--color-slate);
  padding: var(--space-5);
  overflow-y: auto;
}

.nav-mobile.open { display: block; }

.nav-mobile ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-mobile li { border-bottom: 1px solid rgba(245,243,239,0.1); }

.nav-mobile a {
  display: block;
  color: var(--color-warm-white);
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 16px 0;
  min-height: 44px;
}

.nav-mobile a:hover { color: var(--color-floor-wood); }

/* Hero */
.hero {
  background: var(--color-slate);
  color: var(--color-warm-white);
  padding: calc(var(--space-9) + 64px) var(--space-5) var(--space-8);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-5);
  max-width: 800px;
}

.hero p {
  font-size: var(--text-body-lg);
  line-height: 1.6;
  color: var(--color-mat-grey);
  max-width: 600px;
  margin: 0 0 var(--space-6);
}

.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-4); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 28px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  border: 0;
  cursor: pointer;
  transition: background 150ms ease, color 150ms ease, border-color 150ms ease;
}

.btn-primary {
  background: var(--color-itf-blue);
  color: var(--color-belt-white);
}
.btn-primary:hover { background: var(--color-warm-white); color: var(--color-slate); }

.btn-secondary {
  background: transparent;
  color: var(--color-warm-white);
  border: 2px solid var(--color-warm-white);
}
.btn-secondary:hover { background: var(--color-warm-white); color: var(--color-slate); }

.btn-small { padding: 8px 20px; font-size: 14px; min-height: 40px; }

/* Sections */
.section { padding: var(--space-8) var(--space-5); }
.section-alt { background: var(--color-warm-white); }

.section-header {
  margin-bottom: var(--space-6);
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: var(--text-h2);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-3);
}

.section-header p {
  font-size: var(--text-body-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0;
}

.overline {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-overline);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-deep-red);
  margin-bottom: var(--space-3);
}

/* Grid */
.grid { display: grid; gap: var(--space-5); }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }

/* Cards */
.card {
  background: var(--color-belt-white);
  border: 1px solid var(--color-border);
  padding: var(--space-5);
}

.card:hover { border-color: var(--color-itf-blue); }

.card h3 {
  font-family: var(--font-display);
  font-size: var(--text-h4);
  font-weight: 600;
  margin: 0 0 var(--space-3);
}

.card p {
  color: var(--color-text-secondary);
  margin: 0;
}

.card-meta {
  font-size: var(--text-caption);
  color: var(--color-mat-grey);
  margin-top: var(--space-3);
}

/* Instructor card */
.instructor-card {
  text-align: center;
  padding: var(--space-6) var(--space-5);
}

.instructor-card img {
  width: 120px;
  height: 120px;
  object-fit: cover;
  margin: 0 auto var(--space-4);
  border: 2px solid var(--color-border);
}

.instructor-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-h4);
  font-weight: 600;
  margin: 0 0 var(--space-1);
}

.instructor-card .rank {
  font-size: var(--text-caption);
  color: var(--color-deep-red);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}

.instructor-card .locations {
  font-size: var(--text-caption);
  color: var(--color-text-secondary);
}

/* Venue pills */
.pills { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-5); }

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 16px;
  background: var(--color-belt-white);
  border: 1px solid var(--color-border);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-text-primary);
}

.pill:hover { border-color: var(--color-itf-blue); color: var(--color-itf-blue); }

/* Timetable */
.timetable { border: 1px solid var(--color-border); }

.timetable-header {
  display: none;
  background: var(--color-slate);
  color: var(--color-warm-white);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: var(--space-3) var(--space-5);
}

.timetable-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.timetable-row:last-child { border-bottom: 0; }

.timetable-row:hover { background: var(--color-warm-white); }

.timetable-time {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-itf-blue);
}

.timetable-venue { font-weight: 600; }
.timetable-class { color: var(--color-text-secondary); }
.timetable-age { font-size: var(--text-caption); color: var(--color-mat-grey); }

/* Testimonial */
.testimonial {
  background: var(--color-warm-white);
  padding: var(--space-7) var(--space-5);
}

.testimonial blockquote {
  margin: 0;
  font-size: var(--text-body-lg);
  line-height: 1.7;
  max-width: 800px;
}

.testimonial blockquote p {
  margin: 0 0 var(--space-4);
  color: var(--color-text-primary);
}

.testimonial cite {
  font-style: normal;
  font-weight: 600;
  color: var(--color-text-secondary);
}

/* CTA Block */
.cta-block {
  background: var(--color-slate);
  color: var(--color-warm-white);
  padding: var(--space-8) var(--space-5);
  text-align: center;
}

.cta-block h2 {
  font-family: var(--font-display);
  font-size: var(--text-h2);
  font-weight: 700;
  margin: 0 0 var(--space-3);
}

.cta-block p {
  color: var(--color-mat-grey);
  max-width: 500px;
  margin: 0 auto var(--space-6);
  font-size: var(--text-body-lg);
}

/* Footer */
.footer {
  background: var(--color-belt-black);
  color: var(--color-mat-grey);
  padding: var(--space-8) var(--space-5) var(--space-6);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-warm-white);
  margin: 0 0 var(--space-4);
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-col li { margin-bottom: var(--space-2); }

.footer-col a {
  color: var(--color-mat-grey);
  text-decoration: none;
  font-size: var(--text-body);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.footer-col a:hover { color: var(--color-warm-white); }

.footer-bottom {
  border-top: 1px solid rgba(245,243,239,0.1);
  padding-top: var(--space-5);
  font-size: var(--text-caption);
  color: var(--color-mat-grey);
}

/* Page header */
.page-header {
  background: var(--color-slate);
  color: var(--color-warm-white);
  padding: calc(var(--space-8) + 64px) var(--space-5) var(--space-7);
}

.page-header h1 {
  font-family: var(--font-display);
  font-size: var(--text-h1);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0;
}

.page-header p {
  color: var(--color-mat-grey);
  max-width: 600px;
  margin: var(--space-4) 0 0;
  font-size: var(--text-body-lg);
}

/* Content */
.content { max-width: 720px; }
.content h2 {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: 700;
  margin: var(--space-7) 0 var(--space-4);
}
.content h3 {
  font-family: var(--font-display);
  font-size: var(--text-h4);
  font-weight: 600;
  margin: var(--space-6) 0 var(--space-3);
}
.content p { margin: 0 0 var(--space-4); }
.content ul { margin: 0 0 var(--space-5); padding-left: var(--space-5); }
.content li { margin-bottom: var(--space-2); }

/* Contact grid */
.contact-grid { display: grid; gap: var(--space-6); }

.contact-card {
  border: 1px solid var(--color-border);
  padding: var(--space-5);
}

.contact-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-h4);
  font-weight: 600;
  margin: 0 0 var(--space-3);
}

.contact-card p { margin: 0 0 var(--space-2); color: var(--color-text-secondary); }

/* Form */
.form-group { margin-bottom: var(--space-5); }
.form-group label {
  display: block;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: var(--space-2);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  font-family: var(--font-body);
  font-size: 16px;
  background: var(--color-belt-white);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-itf-blue);
  box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.15);
}

/* Responsive */
@media (min-width: 480px) {
  :root { --text-h1: 40px; --text-h2: 28px; }
  .hero h1 { font-size: 40px; }
}

@media (min-width: 768px) {
  :root { --text-h1: 48px; --text-h2: 32px; --text-h3: 28px; }
  .hero { padding: calc(var(--space-9) + 64px) var(--space-5) var(--space-9); }
  .hero h1 { font-size: 48px; }
  .nav-toggle { display: none; }
  .nav-links { display: flex; }
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
  .timetable-header { display: grid; grid-template-columns: 100px 1fr 1fr 120px; gap: var(--space-4); }
  .timetable-row { grid-template-columns: 100px 1fr 1fr 120px; gap: var(--space-4); align-items: center; }
}

@media (min-width: 1080px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
  .footer-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 1280px) {
  :root { --text-h1: 56px; --text-display: 64px; }
  .hero h1 { font-size: 56px; }
}

@media (min-width: 1440px) {
  :root { --text-h1: 64px; }
  .hero h1 { font-size: 64px; }
}

/* Print */
@media print {
  .nav, .nav-mobile, .cta-block, .footer { display: none; }
  .hero, .page-header { background: #fff; color: #000; padding: 24px 0; }
  body { font-size: 12pt; line-height: 1.5; color: #000; }
  a { text-decoration: underline; color: #000; }
  .card, .instructor-card { border: 1px solid #ccc; break-inside: avoid; }
}