/* ============================================================
   Adrian Sandmeier – Personal Training & Coaching Zürich
   style.css  |  Mobile First  |  Clean & Sportlich
   ============================================================ */

/* ── Custom Properties ─────────────────────────────────────── */
:root {
  --black:      #0d0d0d;
  --dark:       #1a1a1a;
  --grey-dark:  #2b2b2b;
  --grey-mid:   #555555;
  --grey-light: #e8e8e8;
  --white:      #ffffff;
  --accent:     #c8a96e;
  --accent-dim: #a8894e;

  --font-sans: 'Inter', 'Helvetica Neue', Arial, sans-serif;

  --max-width: 1100px;
  --radius: 4px;
  --transition: 0.2s ease;
}

/* ── Reset & Base ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  /* Prevent font size inflation on iOS */
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--white);
  color: var(--dark);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  /* Prevent horizontal overflow on mobile */
  overflow-x: hidden;
}

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

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

ul { list-style: none; }

/* ── Typography ─────────────────────────────────────────────── */
h1 {
  /* Tighter clamp for mobile: starts at 2rem, scales with viewport */
  font-size: clamp(2rem, 10vw, 5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--white);
}

h2 {
  font-size: clamp(1.5rem, 5vw, 2.4rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  letter-spacing: 0.01em;
}

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* ── Utility ────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  /* Comfortable side padding on mobile */
  padding: 0 1.1rem;
}

.section-label {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-block;
  /* Larger tap target on mobile */
  padding: 1rem 1.75rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  /* Minimum touch target height ~48px */
  min-height: 48px;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.btn-primary {
  background: var(--accent);
  color: var(--black);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--accent-dim);
  transform: translateY(-1px);
}

/* Full-width button on mobile for easier tapping */
.btn-block-mobile {
  display: block;
  width: 100%;
  text-align: center;
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 0.95rem;
  margin-top: 2rem;
}

/* ── Header / Navigation ────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(13, 13, 13, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  /* Taller header on mobile for easier touch */
  height: 56px;
}

.logo {
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--white);
  /* Prevent logo from being too long on small screens */
  white-space: nowrap;
}

/* Mobile nav: full-screen dropdown */
.nav {
  display: none;
  flex-direction: column;
  position: absolute;
  top: 56px;
  left: 0;
  right: 0;
  background: var(--black);
  padding: 0.5rem 1.1rem 1.5rem;
  gap: 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.nav.nav-open { display: flex; }

.nav a {
  color: var(--grey-light);
  font-size: 1rem;
  font-weight: 500;
  /* Large tap targets in nav */
  padding: 0.9rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: color var(--transition);
}

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

.nav a:hover,
.nav a:focus-visible { color: var(--accent); }

.nav-cta {
  color: var(--accent) !important;
  font-weight: 700 !important;
}

/* Burger – larger touch area */
.burger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  /* Minimum 44×44 touch target */
  padding: 10px 8px;
  margin-right: -8px;
}

.burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: opacity var(--transition), transform var(--transition);
}

/* ── Hero ───────────────────────────────────────────────────── */
.hero {
  position: relative;
  /* Use dvh for better mobile browser chrome handling */
  min-height: 100dvh;
  min-height: 100svh; /* fallback */
  display: flex;
  align-items: center;
  background: var(--black);
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(200,169,110,0.06) 0%, transparent 60%),
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 40px,
      rgba(255,255,255,0.012) 40px,
      rgba(255,255,255,0.012) 41px
    );
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  /* Account for fixed header + breathing room */
  padding-top: 96px;
  padding-bottom: 3rem;
  width: 100%;
}

.hero-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.hero-sub {
  font-size: 1rem;
  color: rgba(255,255,255,0.65);
  max-width: 520px;
  margin: 1.25rem 0 2rem;
  line-height: 1.65;
}

/* ── Sections ───────────────────────────────────────────────── */
.section {
  /* Tighter vertical padding on mobile */
  padding: 3.5rem 1.1rem;
}

.section-dark {
  background: var(--dark);
  color: var(--white);
}

.section-dark h2 { color: var(--white); }
.section-dark .section-label { color: var(--accent); }

/* ── Über mich – Grid ───────────────────────────────────────── */
.section-grid {
  display: grid;
  gap: 2rem;
}

/* Photo comes first on mobile (visual before text) */
.section-visual { order: -1; }

.section-text p {
  color: var(--grey-mid);
  font-size: 0.975rem;
}

.section-text h2 { color: var(--dark); }

/* Portrait photo */
.portrait-photo {
  width: 100%;
  /* Shorter aspect ratio on mobile to save vertical space */
  max-height: 340px;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center 15%;
  border-radius: var(--radius);
  display: block;
  margin: 0 auto;
}

/* ── Cards ──────────────────────────────────────────────────── */
.cards {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.card {
  background: var(--grey-dark);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius);
  padding: 1.5rem 1.25rem;
  transition: border-color var(--transition);
}

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

.card-icon {
  width: 36px;
  height: 36px;
  color: var(--accent);
  margin-bottom: 1rem;
}

.card-icon svg { width: 100%; height: 100%; }

.card h3 { color: var(--white); }

.card > p {
  color: rgba(255,255,255,0.6);
  font-size: 0.92rem;
  margin-bottom: 1rem;
}

.card ul { display: flex; flex-direction: column; gap: 0.4rem; }

.card ul li {
  font-size: 0.83rem;
  color: rgba(255,255,255,0.45);
  padding-left: 1rem;
  position: relative;
}

.card ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ── Für wen ────────────────────────────────────────────────── */
.fuerwen-grid {
  display: grid;
  gap: 0.75rem;
  margin-top: 2rem;
}

.fuerwen-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--grey-light);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

.fuerwen-item:hover { border-color: var(--accent); }

.check {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  background: var(--accent);
  color: var(--black);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 800;
  line-height: 1;
  margin-top: 2px;
}

.fuerwen-item p {
  font-size: 0.92rem;
  color: var(--grey-mid);
  margin: 0;
}

/* ── CTA / Kontakt ──────────────────────────────────────────── */
.section-cta { text-align: center; }

.cta-inner { max-width: 680px; margin: 0 auto; }

.cta-sub {
  color: rgba(255,255,255,0.6);
  font-size: 0.975rem;
  max-width: 520px;
  margin: 0 auto;
}

.contact-options {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.75rem;
  margin-top: 2rem;
}

/* Contact links as tap-friendly blocks on mobile */
.contact-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  min-height: 52px;
  transition: color var(--transition), background var(--transition);
}

.contact-link svg {
  width: 20px;
  height: 20px;
  color: var(--accent);
  flex-shrink: 0;
}

.contact-link:hover,
.contact-link:focus-visible {
  color: var(--accent);
  background: rgba(200,169,110,0.08);
  border-color: var(--accent);
}

.location-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  margin-top: 1.75rem;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.35);
}

.location-note svg {
  width: 15px;
  height: 15px;
  color: var(--accent);
  flex-shrink: 0;
}

/* ── Footer ─────────────────────────────────────────────────── */
.site-footer {
  background: var(--black);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 1.75rem 1.1rem;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  text-align: center;
}

.footer-inner p {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.3);
  margin: 0;
}

/* ── Tablet: 640px+ ─────────────────────────────────────────── */
@media (min-width: 640px) {
  .section { padding: 4.5rem 1.5rem; }

  .section-visual { order: 0; }

  .portrait-photo {
    max-height: none;
    aspect-ratio: 3 / 4;
    object-position: center top;
  }

  .cards { grid-template-columns: 1fr 1fr; gap: 1.25rem; }

  .fuerwen-grid { grid-template-columns: 1fr 1fr; }

  .contact-options {
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: 1rem;
  }

  .contact-link {
    flex: 1;
    max-width: 260px;
  }

  .btn-block-mobile {
    display: inline-block;
    width: auto;
  }
}

/* ── Desktop: 900px+ ────────────────────────────────────────── */
@media (min-width: 900px) {

  /* Nav */
  .burger { display: none; }

  .nav {
    display: flex;
    flex-direction: row;
    position: static;
    background: none;
    padding: 0;
    gap: 2rem;
    border: none;
  }

  .nav a {
    font-size: 0.85rem;
    padding: 0;
    border: none;
    color: rgba(255,255,255,0.7);
  }

  .nav a:hover { color: var(--white); }

  .nav-cta {
    background: var(--accent);
    color: var(--black) !important;
    padding: 0.5rem 1.1rem !important;
    border-radius: var(--radius);
    font-size: 0.8rem !important;
  }

  .nav-cta:hover { background: var(--accent-dim); color: var(--black) !important; }

  /* Header */
  .header-inner { height: 64px; }

  .nav { top: 64px; }

  /* Sections */
  .section { padding: 6rem 1.5rem; }

  /* Hero */
  .hero-content { padding-top: 104px; }

  h1 { font-size: clamp(3rem, 6vw, 5rem); }

  .hero-sub { font-size: 1.15rem; }

  /* Über mich */
  .section-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 5rem;
  }

  .portrait-photo {
    max-width: 420px;
    max-height: none;
    aspect-ratio: 3 / 4;
  }

  /* Cards */
  .cards { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }

  /* Für wen */
  .fuerwen-grid { grid-template-columns: repeat(3, 1fr); }

  /* Contact */
  .contact-options {
    gap: 2rem;
  }

  .contact-link {
    background: none;
    border: none;
    padding: 0;
    min-height: auto;
    justify-content: flex-start;
  }

  .contact-link:hover,
  .contact-link:focus-visible {
    background: none;
    border: none;
  }

  /* Footer */
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }

  .btn-large { padding: 1rem 2.5rem; font-size: 1rem; }
}

/* ── Focus Styles ───────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ── Reduced Motion ─────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}