/* ═══════════════════════════════════════════════════════════════════
   Meirins · Design system v3
   ═══════════════════════════════════════════════════════════════════ */

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

:root {
  /* Brand palette */
  --ink:         #0C0C10;
  --ink-2:       #18181F;
  --ink-mid:     #44444F;
  --muted:       #88889A;
  --cream:       #FAFAF8;
  --white:       #FFFFFF;
  --green:       #00B86B;
  --green-dim:   #009A58;
  --green-light: #E5FBF2;
  --rose:        #F06B88;
  --rose-light:  #FFF0F5;
  --amber:       #F5B800;
  --amber-light: #FFFBEA;

  /* Legacy tokens — used by legal pages */
  --blue:        #1A56DB;
  --blue-light:  #EFF6FF;
  --bg:          #F8FAFC;
  --text:        #1E293B;
  --border:      #E2E8F0;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  background: var(--cream);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; }
a:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; }

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 28px;
}
.container.narrow { max-width: 760px; }

/* ════════════════════════════════════
   HEADER
   ════════════════════════════════════ */
header {
  background: var(--ink);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}
header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--white);
  font-weight: 700;
  font-size: 17px;
}
.logo { font-size: 22px; }
.brand-name { letter-spacing: 0.2px; }
.blumm-logo { height: 42px; width: auto; display: block; filter: invert(1); mix-blend-mode: screen; }

#main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}
#main-nav a {
  color: rgba(255,255,255,0.55);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.15s;
}
#main-nav a:hover { color: var(--white); }

.lang-switcher {
  display: flex;
  gap: 4px;
  margin-left: 8px;
  border-left: 1px solid rgba(255,255,255,0.12);
  padding-left: 16px;
}
.lang-btn {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.18);
  color: rgba(255,255,255,0.45);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 4px;
  cursor: pointer;
  letter-spacing: 0.5px;
  transition: all 0.15s;
}
.lang-btn:hover { color: var(--white); border-color: rgba(255,255,255,0.5); }
.lang-btn.active { color: var(--white); border-color: var(--green); background: rgba(0,184,107,0.15); }

/* ════════════════════════════════════
   HERO
   ════════════════════════════════════ */
.hero {
  background: var(--ink);
  color: var(--white);
  padding: 88px 0 72px;
  overflow: hidden;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -60px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0,184,107,0.13) 0%, transparent 65%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(44px, 6vw, 80px);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.03em;
  text-wrap: balance;
  margin-bottom: 22px;
  color: var(--white);
}

.hero .lead {
  font-size: 17px;
  line-height: 1.7;
  color: rgba(255,255,255,0.62);
  max-width: 44ch;
  margin-bottom: 36px;
}

/* Store buttons */
.store-buttons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.store-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  color: var(--white);
  padding: 11px 18px;
  border-radius: 12px;
  transition: background 0.15s, border-color 0.15s;
}
.store-btn:hover { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.35); }
.store-icon { font-size: 20px; }
.store-btn > span:last-child { display: flex; flex-direction: column; line-height: 1.25; }
.store-btn small { font-size: 10px; opacity: 0.7; text-transform: uppercase; letter-spacing: 0.5px; }
.store-btn > span:last-child > *:not(small) { font-size: 14px; font-weight: 600; }

/* Badges */
.badges { display: flex; flex-wrap: wrap; gap: 8px; }
.badge {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.14);
  padding: 6px 13px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
}

/* Hero visual cards */
.hero-visual {
  position: relative;
  height: 320px;
}
.hv-card {
  position: absolute;
  border-radius: 20px;
  padding: 20px 22px;
}
.hv-phase {
  background: var(--ink-2);
  border: 1px solid rgba(255,255,255,0.1);
  width: 256px;
  top: 0;
  right: 32px;
}
.hv-habit {
  background: rgba(0,184,107,0.13);
  border: 1px solid rgba(0,184,107,0.32);
  width: 210px;
  bottom: 16px;
  right: 0;
}
.hv-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.hv-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.hv-moon { font-size: 20px; }
.hv-phase-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}
.hv-tip {
  font-size: 13px;
  color: rgba(255,255,255,0.55);
  line-height: 1.5;
  margin-bottom: 14px;
}
.hv-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.hv-tags span {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  background: rgba(0,184,107,0.18);
  border-radius: 50px;
  color: var(--green);
}
.hv-streak {
  font-size: 13px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}
.hv-bars { display: flex; gap: 5px; margin-bottom: 10px; }
.hv-bar {
  height: 7px;
  flex: 1;
  border-radius: 4px;
  background: rgba(255,255,255,0.1);
}
.hv-bar.on { background: var(--green); }
.hv-bar-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--green);
}

/* ════════════════════════════════════
   FEATURES
   ════════════════════════════════════ */
.features { padding: 88px 0; background: var(--cream); }

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.card {
  border-radius: 22px;
  padding: 36px 32px;
  transition: transform 0.2s;
}
.card:hover { transform: translateY(-3px); }
.card-num {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}
.card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
  line-height: 1.25;
}
.card p { font-size: 15px; line-height: 1.65; }

.card-green {
  background: var(--green-light);
  border: 1.5px solid rgba(0,184,107,0.2);
}
.card-green .card-num { color: var(--green-dim); }
.card-green h3 { color: var(--ink); }
.card-green p { color: var(--ink-mid); }

.card-rose {
  background: var(--rose-light);
  border: 1.5px solid rgba(240,107,136,0.2);
}
.card-rose .card-num { color: var(--rose); }
.card-rose h3 { color: var(--ink); }
.card-rose p { color: var(--ink-mid); }

.card-ink {
  background: var(--ink);
  border: 1.5px solid transparent;
}
.card-ink .card-num { color: rgba(255,255,255,0.35); }
.card-ink h3 { color: var(--white); }
.card-ink p { color: rgba(255,255,255,0.55); }

/* ════════════════════════════════════
   TRAINER SECTION
   ════════════════════════════════════ */
.trainer-section {
  padding: 88px 0;
  background: var(--ink-2);
  color: var(--white);
}
.trainer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.trainer-tag {
  display: inline-block;
  background: rgba(0,184,107,0.15);
  border: 1px solid rgba(0,184,107,0.35);
  color: var(--green);
  font-size: 11px;
  font-weight: 700;
  padding: 5px 13px;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}
.trainer-text h2 {
  font-size: clamp(28px, 3.5vw, 46px);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin-bottom: 18px;
  text-wrap: balance;
}
.trainer-text p {
  font-size: 16px;
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 44ch;
}
.trainer-perks {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 36px;
}
.trainer-perks li {
  font-size: 15px;
  color: rgba(255,255,255,0.75);
}
.trainer-btn {
  display: inline-block;
  background: var(--green);
  color: var(--ink);
  font-weight: 700;
  font-size: 15px;
  padding: 14px 28px;
  border-radius: 50px;
  transition: background 0.15s, transform 0.15s;
}
.trainer-btn:hover { background: var(--green-dim); transform: translateY(-1px); }

/* Dashboard preview */
.trainer-card-preview {
  background: #0F0F16;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 22px;
  padding: 28px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.4);
}
.tcp-header { display: flex; align-items: center; gap: 10px; margin-bottom: 24px; }
.tcp-logo { font-size: 22px; }
.tcp-brand { font-size: 16px; font-weight: 700; color: var(--white); }

.tcp-stats { display: flex; gap: 16px; margin-bottom: 24px; }
.tcp-stat {
  background: rgba(255,255,255,0.05);
  border-radius: 14px;
  padding: 14px 20px;
  flex: 1;
  text-align: center;
}
.tcp-num { display: block; font-size: 30px; font-weight: 800; color: var(--white); letter-spacing: -0.02em; }
.tcp-label { font-size: 12px; color: rgba(255,255,255,0.4); margin-top: 2px; }

.tcp-clients { display: flex; flex-direction: column; gap: 8px; }
.tcp-client {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,0.04);
  border-radius: 12px;
  padding: 10px 14px;
}
.tcp-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #5B4FF0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--white);
  font-size: 14px;
  flex-shrink: 0;
}
.tcp-info { display: flex; align-items: center; justify-content: space-between; flex: 1; }
.tcp-name { color: var(--white); font-size: 14px; font-weight: 500; }
.tcp-phase { font-size: 11px; font-weight: 600; padding: 3px 10px; border-radius: 50px; }
.phase-follicular { background: rgba(37,99,235,0.2); color: #93C5FD; }
.phase-luteal     { background: rgba(0,184,107,0.15); color: #6EE7B7; }
.phase-ovulation  { background: rgba(245,184,0,0.15); color: #FCD34D; }

/* ════════════════════════════════════
   LEGAL SECTION
   ════════════════════════════════════ */
.legal {
  padding: 80px 0;
  background: var(--white);
  border-top: 1px solid var(--border);
}
.legal h2 {
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: 36px;
  color: var(--ink);
}
.legal-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 620px;
  margin: 0 auto;
}
.legal-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--cream);
  border-radius: 16px;
  padding: 20px 22px;
  color: var(--ink);
  border: 1.5px solid var(--border);
  transition: border-color 0.15s, background 0.15s, transform 0.15s;
}
.legal-card:hover {
  border-color: var(--green);
  background: var(--green-light);
  transform: translateX(4px);
}
.legal-emoji { font-size: 26px; flex-shrink: 0; }
.legal-card div { flex: 1; }
.legal-card h4 { font-size: 15px; font-weight: 700; margin-bottom: 2px; color: var(--ink); }
.legal-card p { font-size: 13px; color: var(--muted); line-height: 1.4; }
.arrow { color: var(--green); font-weight: 700; font-size: 18px; flex-shrink: 0; }

/* ════════════════════════════════════
   FOOTER
   ════════════════════════════════════ */
footer {
  background: var(--ink);
  padding: 48px 0;
  text-align: center;
  margin-top: 0;
}
.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 20px;
  margin-bottom: 12px;
  color: var(--white);
  font-weight: 700;
}
footer p { color: rgba(255,255,255,0.4); font-size: 14px; margin-bottom: 6px; }
footer .small { font-size: 13px; }
footer a { color: rgba(255,255,255,0.5); transition: color 0.15s; }
footer a:hover { color: var(--white); }

/* ════════════════════════════════════
   HAMBURGER
   ════════════════════════════════════ */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all 0.2s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ════════════════════════════════════
   LEGAL PAGES (privacy, terms, etc.)
   ════════════════════════════════════ */
.legal-page { padding: 60px 0 80px; }
.legal-page h1 {
  font-size: clamp(28px, 4vw, 38px);
  margin-bottom: 8px;
  letter-spacing: -0.5px;
  color: var(--text);
}
.legal-page .meta { color: var(--muted); font-size: 14px; margin-bottom: 32px; }
.legal-page section { margin-bottom: 36px; }
.legal-page h2 { font-size: 22px; margin-bottom: 12px; color: var(--text); padding-top: 12px; }
.legal-page h3 { font-size: 16px; margin: 18px 0 10px; color: var(--text); }
.legal-page p { margin-bottom: 12px; color: #334155; }
.legal-page ul { padding-left: 22px; margin-bottom: 12px; }
.legal-page li { margin-bottom: 6px; color: #334155; }
.legal-page strong { color: var(--text); }

.legal-page table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 14px;
  background: white;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.legal-page th, .legal-page td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.legal-page th { background: var(--bg); font-weight: 600; }
.legal-page tr:last-child td { border-bottom: 0; }

.medical-disclaimer {
  background: #FEF3C7;
  border-left: 4px solid #F59E0B;
  padding: 18px 22px;
  border-radius: 8px;
  margin-bottom: 32px;
}
.medical-disclaimer strong { display: block; color: #92400E; font-size: 15px; margin-bottom: 6px; }
.medical-disclaimer p { color: #78350F; font-size: 14px; margin: 0; }

/* ════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════ */
@media (max-width: 900px) {
  .trainer-inner { grid-template-columns: 1fr; gap: 44px; }
  .trainer-visual { display: none; }
}

@media (max-width: 720px) {
  .grid { grid-template-columns: 1fr; }
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .hero-visual { height: 260px; }
  .hv-phase { width: 220px; right: 20px; }
  .hv-habit { width: 185px; right: 0; }
  .hero { padding: 60px 0 52px; }
}

@media (max-width: 640px) {
  .hamburger { display: flex; }
  header { position: relative; }

  #main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--ink-2);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    flex-direction: column;
    padding: 16px 24px 20px;
    gap: 16px;
    box-shadow: 0 12px 32px rgba(0,0,0,0.3);
    z-index: 100;
  }
  #main-nav.open { display: flex; }
  #main-nav a { font-size: 16px; color: rgba(255,255,255,0.8); padding: 4px 0; }
  .lang-switcher { border-left: none; padding-left: 0; margin-left: 0; margin-top: 4px; }

  .store-buttons { flex-direction: column; align-items: flex-start; }
  .features { padding: 56px 0; }
  .trainer-section { padding: 60px 0; }
  .legal { padding: 56px 0; }

  .legal-page { padding: 32px 0 50px; }
  .legal-page table { font-size: 13px; }
  .legal-page th, .legal-page td { padding: 10px; }
}