/* ─── PadelHub — Global Styles ─── */
/* Mobile-first, Apple-inspired design system */

:root {
  --black: #1d1d1f;
  --white: #fbfbfd;
  --gray-50: #fafafa;
  --gray-100: #f5f5f7;
  --gray-200: #e8e8ed;
  --gray-400: #d2d2d7;
  --gray-500: #86868b;
  --gray-600: #6e6e73;
  --gray-700: #424245;
  --accent: #0071e3;
  --accent-hover: #0077ed;
  --green: #34c759;
  --orange: #ff9f0a;
  --red: #ff3b30;
  --font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --radius: 16px;
  --radius-sm: 10px;
  --max-w: 980px;
  --transition: 0.3s cubic-bezier(.25,.1,.25,1);
}

[data-theme="dark"] {
  --black: #f5f5f7;
  --white: #000;
  --gray-50: #1c1c1e;
  --gray-100: #1c1c1e;
  --gray-200: #2c2c2e;
  --gray-400: #3a3a3c;
  --gray-500: #8e8e93;
  --gray-600: #aeaeb2;
  --gray-700: #d1d1d6;
  --accent: #2997ff;
  --accent-hover: #4dacff;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background: var(--white);
  color: var(--black);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
  /* Prevent pull-to-refresh interfering */
  overscroll-behavior-y: contain;
}

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-hover); }

/* ─── iOS Safe Areas ─── */
@supports (padding: env(safe-area-inset-top)) {
  .nav { padding-top: env(safe-area-inset-top); }
  .footer { padding-bottom: calc(32px + env(safe-area-inset-bottom)); }
}

/* ─── Navigation ─── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251,251,253,.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--gray-200);
  transition: background var(--transition);
}

[data-theme="dark"] .nav {
  background: rgba(0,0,0,.72);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 22px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-size: 18px;
  font-weight: 600;
  color: var(--black);
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  font-size: 13px;
  color: var(--gray-600);
  font-weight: 400;
  transition: color var(--transition);
}

.nav-links a:hover { color: var(--black); }
.nav-links a.active { color: var(--black); font-weight: 500; }

.nav-lang {
  font-size: 12px !important;
  padding: 4px 10px;
  border-radius: 20px;
  background: var(--gray-100);
  color: var(--gray-600) !important;
  border: none;
  cursor: pointer;
}

/* ─── Hamburger Menu ─── */
.nav-hamburger {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
  position: relative;
  z-index: 110;
}

.nav-hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--black);
  border-radius: 2px;
  transition: all 0.3s ease;
  position: relative;
}

.nav-hamburger span::before,
.nav-hamburger span::after {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: var(--black);
  border-radius: 2px;
  position: absolute;
  left: 0;
  transition: all 0.3s ease;
}

.nav-hamburger span::before { top: -6px; }
.nav-hamburger span::after { top: 6px; }

/* Hamburger active state → ✕ */
.nav-hamburger.active span { background: transparent; }
.nav-hamburger.active span::before { top: 0; transform: rotate(45deg); }
.nav-hamburger.active span::after { top: 0; transform: rotate(-45deg); }

/* Mobile menu overlay */
.nav-mobile-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 99;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.nav-mobile-overlay.active {
  display: block;
  opacity: 1;
}

/* ─── Hero ─── */
.hero {
  text-align: center;
  padding: 120px 24px 80px;
  max-width: 720px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 20px;
  background: var(--gray-100);
  color: var(--gray-600);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin-bottom: 16px;
}

.hero p {
  font-size: clamp(17px, 2.5vw, 21px);
  color: var(--gray-600);
  line-height: 1.5;
  max-width: 540px;
  margin: 0 auto 36px;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--accent);
  color: #fff;
  border-radius: 980px;
  font-size: 17px;
  font-weight: 400;
  transition: background var(--transition), transform 0.15s;
  /* Touch-friendly minimum size */
  min-height: 48px;
}

.hero-cta:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: scale(1.02);
}

/* Remove hover transform on touch devices (prevents sticky hover) */
@media (hover: none) {
  .hero-cta:hover { transform: none; }
}

.hero-cta:active {
  transform: scale(0.97);
}

.hero-cta svg { width: 18px; height: 18px; }

/* ─── Features ─── */
.features {
  padding: 80px 24px;
  background: var(--gray-50);
}

.features-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.features h2 {
  text-align: center;
  font-size: 32px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 56px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,.06);
}

@media (hover: none) {
  .feature-card:hover { transform: none; box-shadow: none; }
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 15px;
  color: var(--gray-600);
  line-height: 1.55;
}

/* ─── Section ─── */
.section {
  padding: 80px 24px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.section h2 {
  font-size: 32px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section p.subtitle {
  font-size: 17px;
  color: var(--gray-600);
  margin-bottom: 40px;
}

/* ─── Blog Grid ─── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.blog-card {
  background: var(--gray-50);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.blog-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,.06);
}

@media (hover: none) {
  .blog-card:hover { transform: none; box-shadow: none; }
}

.blog-card-body { padding: 24px; }

.blog-card-tag {
  font-size: 12px;
  color: var(--accent);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.blog-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.blog-card p {
  font-size: 14px;
  color: var(--gray-600);
  line-height: 1.5;
}

/* ─── Footer ─── */
.footer {
  border-top: 1px solid var(--gray-200);
  padding: 32px 24px;
  text-align: center;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  font-size: 13px;
  color: var(--gray-500);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  list-style: none;
  margin-bottom: 12px;
}

.footer-links a { color: var(--gray-500); font-size: 13px; }
.footer-links a:hover { color: var(--black); }

/* ─── PIN Screen ─── */
.pin-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  min-height: 100dvh;
  padding: 24px;
}

.pin-box {
  text-align: center;
  max-width: 360px;
  width: 100%;
}

.pin-box h2 {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.pin-box p {
  color: var(--gray-600);
  font-size: 15px;
  margin-bottom: 32px;
}

.pin-input {
  width: 100%;
  text-align: center;
  font-size: 32px;
  letter-spacing: 12px;
  padding: 16px;
  border: 1px solid var(--gray-400);
  border-radius: var(--radius-sm);
  background: var(--white);
  color: var(--black);
  outline: none;
  font-family: var(--font);
  transition: border-color var(--transition);
}

.pin-input:focus { border-color: var(--accent); }

.pin-error {
  color: var(--red);
  font-size: 14px;
  margin-top: 12px;
  display: none;
}

/* ─── Utilities ─── */
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-4 { margin-top: 32px; }
.mb-4 { margin-bottom: 32px; }

/* ─── Responsive — Mobile First (iPhone optimized) ─── */
@media (max-width: 734px) {

  /* Navigation: hamburger menu */
  .nav-inner { height: 44px; padding: 0 16px; }
  .nav-hamburger { display: flex; }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 280px;
    max-width: 80vw;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--white);
    padding: 80px 24px 40px;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(.32,.72,0,1);
    z-index: 105;
    box-shadow: -4px 0 24px rgba(0,0,0,.12);
  }

  [data-theme="dark"] .nav-links {
    background: #1c1c1e;
  }

  .nav-links.open { transform: translateX(0); }

  .nav-links li {
    border-bottom: 1px solid var(--gray-200);
  }

  .nav-links li:last-child { border-bottom: none; }

  .nav-links a {
    display: block;
    font-size: 17px !important;
    padding: 16px 0;
    color: var(--black);
    font-weight: 400;
    /* Touch target: 48px min */
    min-height: 48px;
    display: flex;
    align-items: center;
  }

  .nav-links a.active {
    color: var(--accent);
    font-weight: 600;
  }

  .nav-lang {
    margin-top: 8px;
    width: fit-content;
    font-size: 14px !important;
    padding: 8px 16px;
  }

  /* Hero: mobile optimized */
  .hero {
    padding: 64px 20px 48px;
  }

  .hero h1 {
    font-size: 32px;
    line-height: 1.1;
    letter-spacing: -0.02em;
  }

  .hero p {
    font-size: 16px;
    margin-bottom: 28px;
    line-height: 1.45;
  }

  .hero-badge {
    font-size: 11px;
    margin-bottom: 16px;
  }

  .hero-cta {
    padding: 14px 24px;
    font-size: 16px;
    width: 100%;
    justify-content: center;
    min-height: 50px;
  }

  /* Features: single column, snug spacing */
  .features {
    padding: 48px 20px;
  }

  .features h2 {
    font-size: 26px;
    margin-bottom: 32px;
  }

  .features-grid { grid-template-columns: 1fr; gap: 12px; }

  .feature-card {
    padding: 24px 20px;
    border-radius: 14px;
  }

  .feature-card h3 { font-size: 17px; }
  .feature-card p { font-size: 14px; }

  /* Section */
  .section {
    padding: 48px 20px;
  }

  .section h2 { font-size: 26px; }
  .section p.subtitle { font-size: 15px; margin-bottom: 24px; }

  /* Blog grid: single column */
  .blog-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .blog-card { border-radius: 14px; }
  .blog-card-body { padding: 20px; }
  .blog-card h3 { font-size: 16px; }
  .blog-card p { font-size: 13px; }

  /* Footer: stack and touch-friendly */
  .footer { padding: 24px 20px 32px; }

  .footer-links {
    flex-wrap: wrap;
    gap: 16px;
  }

  .footer-links a {
    font-size: 14px;
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .footer-inner p { font-size: 12px; margin-top: 8px; }

  /* PIN screen: mobile */
  .pin-box { padding: 24px 20px; }
  .pin-box h2 { font-size: 24px; }
  .pin-input {
    font-size: 28px;
    padding: 14px;
    letter-spacing: 8px;
    max-width: 200px;
    margin: 0 auto;
  }
}

/* Extra small screens (iPhone SE, 375px) */
@media (max-width: 375px) {
  .hero { padding: 48px 16px 40px; }
  .hero h1 { font-size: 28px; }
  .hero p { font-size: 15px; }
  .hero-cta { font-size: 15px; padding: 12px 20px; }

  .features { padding: 40px 16px; }
  .features h2 { font-size: 24px; }
  .feature-card { padding: 20px 16px; }

  .section { padding: 40px 16px; }
  .section h2 { font-size: 24px; }

  .footer { padding: 20px 16px 28px; }
}

/* Landscape on small devices */
@media (max-height: 500px) and (orientation: landscape) {
  .hero { padding: 32px 24px 24px; }
  .pin-screen { min-height: auto; padding: 24px; }
}