:root {
  --sand: #F5F0E8;
  --sand-dark: #E8E0D0;
  --sand-light: #FAF8F3;
  --terracotta: #C4704B;
  --terracotta-dark: #A85A3A;
  --terracotta-light: #D4896A;
  --warm-black: #2C2824;
  --warm-gray: #5C5650;
  --warm-gray-light: #8A837B;
  --cream: #FDF9F2;
  --sage: #8B9A7E;
  --sage-light: #C5D1BB;
  --gold: #C9A96E;
  --white: #FFFFFF;
  --shadow-soft: rgba(44,40,36,0.06);
  --shadow-med: rgba(44,40,36,0.12);
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Source Sans 3', 'Segoe UI', sans-serif;
  --font-accent: 'Lora', Georgia, serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
  color: var(--warm-black);
  background: var(--sand-light);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* === HEADER === */
.app-header {
  background: var(--warm-black);
  color: var(--sand);
  padding: 1rem 1.5rem;
  text-align: center;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}
.header-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}
.app-header h1 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.app-header h1 span { color: var(--terracotta-light); font-weight: 600; }
.header-subtitle {
  font-family: var(--font-accent);
  font-style: italic;
  font-size: 0.82rem;
  color: var(--warm-gray-light);
  margin-top: 0.15rem;
}

/* === LANGUAGE SWITCH (prominent, no flags) === */
.lang-switch {
  display: flex;
  justify-content: center;
  margin-top: 0.6rem;
}
.lang-toggle {
  display: flex;
  background: rgba(255,255,255,0.08);
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,0.15);
  overflow: hidden;
}
.lang-opt {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 1rem;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  cursor: pointer;
  background: transparent;
  color: var(--warm-gray-light);
  border: none;
  transition: all 0.25s ease;
}
.flag-icon {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  object-fit: cover;
}
.lang-opt.active {
  background: var(--terracotta);
  color: var(--white);
}
.lang-opt:hover:not(.active) {
  color: var(--sand);
  background: rgba(255,255,255,0.1);
}

/* === MOTIVATION BANNER === */
.motivation-banner {
  background: linear-gradient(135deg, var(--terracotta), var(--terracotta-dark));
  color: var(--white);
  text-align: center;
  padding: 0.8rem 1.5rem;
  font-family: var(--font-accent);
  font-style: italic;
  font-size: 0.9rem;
  line-height: 1.5;
}

/* === PROGRESS === */
.progress-container {
  background: var(--sand-dark);
  padding: 0.4rem 1.5rem;
  position: sticky;
  top: 78px;
  z-index: 90;
}
.progress-bar-wrap {
  background: var(--sand);
  border-radius: 20px;
  height: 7px;
  overflow: hidden;
}
.progress-bar-fill {
  background: linear-gradient(90deg, var(--terracotta), var(--terracotta-light));
  height: 100%;
  border-radius: 20px;
  transition: width 0.6s ease;
  width: 0;
}
.progress-text {
  text-align: center;
  font-size: 0.72rem;
  color: var(--warm-gray);
  margin-top: 3px;
  font-weight: 500;
}

/* === NAV === */
.nav-container {
  background: var(--cream);
  border-bottom: 1px solid var(--sand-dark);
  position: sticky;
  top: 104px;
  z-index: 80;
}
.nav-scroll {
  display: flex;
  overflow-x: auto;
  padding: 0.4rem 0.8rem;
  gap: 0.4rem;
}
.nav-scroll::-webkit-scrollbar { display: none; }
.nav-btn {
  flex-shrink: 0;
  background: var(--sand);
  color: var(--warm-gray);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  padding: 0.4rem 0.9rem;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  position: relative;
}
.nav-btn:hover { background: var(--sand-dark); color: var(--warm-black); }
.nav-btn.active { background: var(--terracotta); color: var(--white); border-color: var(--terracotta-dark); font-weight: 600; }
.nav-btn.completed::after {
  content: '\2713';
  position: absolute; top: -5px; right: -3px;
  background: var(--sage); color: var(--white);
  width: 16px; height: 16px; border-radius: 50%;
  font-size: 0.6rem;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
}
.nav-btn.bonus-btn { background: var(--warm-black); color: var(--sand); }
.nav-btn.bonus-btn.active { background: var(--gold); color: var(--warm-black); }

/* === MAIN === */
.main-content { max-width: 700px; margin: 0 auto; padding: 1.5rem 1.2rem 3rem; }
.page { display: none; }
.page.active { display: block; animation: fadeIn 0.35s ease; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* === WELCOME === */
.welcome-hero { text-align: center; padding: 2.5rem 0 1.5rem; }
.logo-text { font-family: var(--font-display); font-size: 2.4rem; font-weight: 700; color: var(--warm-black); line-height: 1.15; }
.logo-accent { display: block; font-size: 0.95rem; font-weight: 400; letter-spacing: 0.25em; text-transform: uppercase; color: var(--terracotta); }
.tagline { font-family: var(--font-accent); font-style: italic; font-size: 1.05rem; color: var(--warm-gray); margin-top: 0.8rem; }
.welcome-intro { background: var(--cream); border-radius: var(--radius-lg); padding: 1.8rem; margin: 1.5rem 0; border-left: 4px solid var(--terracotta); }
.welcome-intro p { margin-bottom: 0.8rem; color: var(--warm-gray); }
.welcome-intro p:last-child { margin-bottom: 0; }

/* === START BUTTON === */
.start-btn {
  display: block; width: 100%;
  padding: 1.3rem 2rem;
  background: var(--terracotta); color: var(--white);
  border: none; border-radius: var(--radius-md);
  font-family: var(--font-display); font-size: 1.15rem; font-weight: 600;
  cursor: pointer; transition: all 0.3s ease;
  margin: 1.5rem 0;
  box-shadow: 0 6px 24px rgba(196,112,75,0.35);
  text-align: center;
}
.start-btn:hover { background: var(--terracotta-dark); transform: translateY(-2px); box-shadow: 0 8px 32px rgba(196,112,75,0.45); }

/* === SECTIONS === */
.info-section { margin: 1.5rem 0; }
.info-section h2 { font-family: var(--font-display); font-size: 1.4rem; font-weight: 600; color: var(--warm-black); margin-bottom: 0.8rem; }
.info-card { background: var(--white); border-radius: var(--radius-md); padding: 1.3rem; margin-bottom: 0.8rem; box-shadow: 0 2px 12px var(--shadow-soft); border: 1px solid var(--sand-dark); }
.info-card h3 { font-family: var(--font-accent); font-size: 1rem; font-weight: 500; color: var(--terracotta); margin-bottom: 0.4rem; }
.info-card p { color: var(--warm-gray); font-size: 0.92rem; }

/* === DAY OVERVIEW === */
.days-overview { display: grid; gap: 0.4rem; margin: 1rem 0; }
.day-overview-item {
  display: flex; align-items: center; gap: 1rem; padding: 0.9rem;
  background: var(--white); border-radius: var(--radius-sm);
  border-left: 3px solid var(--terracotta);
  box-shadow: 0 1px 4px var(--shadow-soft);
  cursor: pointer; transition: all 0.2s ease;
}
.day-overview-item:hover { background: var(--sand-light); transform: translateX(4px); }
.day-overview-item.bonus-item { border-left-color: var(--gold); }
.day-num { font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; color: var(--terracotta); min-width: 1.8rem; }
.day-num.gold { color: var(--gold); }
.day-info h4 { font-weight: 600; font-size: 0.92rem; color: var(--warm-black); }
.day-info p { font-family: var(--font-accent); font-style: italic; font-size: 0.82rem; color: var(--warm-gray-light); }

/* === DAY PAGE === */
.day-header { text-align: center; padding: 1.5rem 0 1.2rem; border-bottom: 1px solid var(--sand-dark); margin-bottom: 1.5rem; }
.day-number { font-family: var(--font-display); font-size: 3rem; font-weight: 700; color: var(--terracotta); line-height: 1; }
.day-title { font-family: var(--font-display); font-size: 1.5rem; font-weight: 600; color: var(--warm-black); margin-top: 0.4rem; }
.day-subtitle { font-family: var(--font-accent); font-style: italic; font-size: 0.95rem; color: var(--warm-gray); margin-top: 0.2rem; }

/* === META === */
.meta-box { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; background: var(--warm-black); color: var(--sand); border-radius: var(--radius-md); padding: 1.3rem; margin-bottom: 1.5rem; }
.meta-label { font-size: 0.68rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--warm-gray-light); }
.meta-value { font-family: var(--font-accent); font-size: 0.88rem; color: var(--sand); }

/* === AUDIO === */
.audio-box { background: linear-gradient(135deg, #3D3834, var(--warm-black)); border-radius: var(--radius-md); padding: 1.3rem; margin-bottom: 1.5rem; text-align: center; color: var(--sand); }
.audio-icon { font-size: 1.8rem; margin-bottom: 0.4rem; }
.audio-box p { font-family: var(--font-accent); font-style: italic; font-size: 0.85rem; color: var(--warm-gray-light); }

/* === COLLAPSIBLE (shared for on-the-go, science, benefit) === */
.collapsible { margin-bottom: 1rem; border-radius: var(--radius-md); overflow: hidden; }
.collapsible-toggle {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.2rem; border: none; cursor: pointer;
  font-family: var(--font-display); font-size: 1rem; font-weight: 600;
  transition: all 0.2s ease; text-align: left;
  border-radius: var(--radius-md);
}
.collapsible-toggle .arrow { transition: transform 0.3s ease; font-size: 0.75rem; opacity: 0.6; }
.collapsible-toggle.open .arrow { transform: rotate(180deg); }
.collapsible-body { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.collapsible-body.open { max-height: 800px; }
.collapsible-body-inner { padding: 0 1.2rem 1.2rem; }

/* On-the-go collapsible */
.collapsible.onthego .collapsible-toggle {
  background: linear-gradient(135deg, var(--sage-light), #D8E3CF);
  color: var(--warm-black);
  border-left: 4px solid var(--sage);
  font-size: 0.95rem;
}
.collapsible.onthego .collapsible-body { background: linear-gradient(135deg, var(--sage-light), #D8E3CF); }
.collapsible.onthego .collapsible-body-inner { padding-top: 0.4rem; }
.onthego-step { display: flex; gap: 0.8rem; margin-bottom: 0.8rem; align-items: flex-start; }
.onthego-step:last-child { margin-bottom: 0; }
.step-label {
  flex-shrink: 0; background: var(--sage); color: var(--white);
  padding: 3px 10px; border-radius: var(--radius-sm);
  font-size: 0.72rem; font-weight: 600; text-transform: uppercase;
  min-width: 65px; text-align: center;
}
.onthego-step p { font-size: 0.88rem; color: var(--warm-gray); }

/* Science collapsible */
.collapsible.science .collapsible-toggle {
  background: var(--cream);
  color: var(--warm-black);
  border: 1px solid var(--sand-dark);
}
.collapsible.science .collapsible-body { background: var(--cream); }
.collapsible.science .collapsible-body-inner {
  border-top: 1px solid var(--sand-dark);
  padding-top: 1rem;
}
.collapsible.science .collapsible-body-inner p { color: var(--warm-gray); font-size: 0.9rem; line-height: 1.7; }

/* Benefit collapsible */
.collapsible.benefit .collapsible-toggle {
  background: linear-gradient(135deg, var(--terracotta), var(--terracotta-dark));
  color: var(--white);
}
.collapsible.benefit .collapsible-toggle .arrow { opacity: 0.8; }
.collapsible.benefit .collapsible-body { background: linear-gradient(135deg, var(--terracotta), var(--terracotta-dark)); }
.collapsible.benefit .collapsible-body-inner {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 1rem;
}
.collapsible.benefit .collapsible-body-inner p { color: rgba(255,255,255,0.92); font-size: 0.9rem; line-height: 1.7; }

/* === SAFETY BOX === */
.safety-box { background: var(--warm-black); color: var(--sand); border-radius: var(--radius-md); padding: 1.3rem; margin-bottom: 1.5rem; }
.safety-box h3 { font-family: var(--font-display); font-size: 1.05rem; color: var(--terracotta-light); margin-bottom: 0.8rem; }
.safety-item { padding: 0.4rem 0; font-size: 0.88rem; color: var(--sand-dark); }

/* === DAY INTRO === */
.day-intro {
  font-family: var(--font-accent); font-size: 1rem; line-height: 1.8;
  color: var(--warm-gray); margin-bottom: 1.5rem; padding: 1.3rem;
  background: var(--cream); border-radius: var(--radius-md);
  border-left: 4px solid var(--terracotta-light);
}

/* === PREPARATION (numbered, clearer) === */
.prep-box {
  background: var(--sand);
  border-radius: var(--radius-md);
  padding: 1.3rem;
  margin-bottom: 1.5rem;
}
.prep-box h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--warm-black);
  margin-bottom: 1rem;
}
.prep-step {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
  margin-bottom: 0.8rem;
}
.prep-step:last-child { margin-bottom: 0; }
.prep-num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  background: var(--terracotta-light);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
}
.prep-step p {
  font-size: 0.9rem;
  color: var(--warm-gray);
  padding-top: 0.2rem;
}

/* === STEPS (structured instructions!) === */
.step-section {
  margin-bottom: 2rem;
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: 0 2px 12px var(--shadow-soft);
  border: 1px solid var(--sand-dark);
}
.step-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1.2rem;
  padding-bottom: 0.8rem;
  border-bottom: 2px solid var(--sand);
}
.step-badge {
  flex-shrink: 0;
  background: var(--terracotta);
  color: var(--white);
  border-radius: var(--radius-sm);
  padding: 0.3rem 0.8rem;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.step-header h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--warm-black);
}

/* Instruction items inside steps */
.step-body {}
.step-instruction {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--sand);
}
.step-instruction:last-child { border-bottom: none; }
.step-instruction .inst-marker {
  flex-shrink: 0;
  color: var(--terracotta);
  font-weight: 700;
  font-size: 0.95rem;
  padding-top: 0.05rem;
}
.step-instruction p {
  color: var(--warm-gray);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* === TIPS === */
.step-tip {
  background: var(--sand);
  border-radius: var(--radius-sm);
  padding: 0.8rem 1rem;
  margin-top: 0.8rem;
  font-size: 0.88rem;
  color: var(--warm-gray);
}
.step-tip strong { color: var(--terracotta); }

/* === OPTIONAL === */
.optional-box {
  background: linear-gradient(135deg, #FFF8F0, #FFF3E6);
  border: 2px dashed var(--terracotta-light);
  border-radius: var(--radius-md);
  padding: 1rem 1.2rem;
  margin-top: 0.8rem;
}
.optional-tag {
  display: inline-block;
  background: var(--terracotta-light);
  color: var(--white);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  margin-bottom: 0.4rem;
}
.optional-box p { font-size: 0.88rem; color: var(--warm-gray); line-height: 1.6; }

/* === ROUTINE SHEET === */
.routine-sheet { background: var(--white); border-radius: var(--radius-md); padding: 1.5rem; margin: 1.5rem 0; box-shadow: 0 2px 16px var(--shadow-soft); border: 1px solid var(--sand-dark); }
.routine-sheet h3 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; color: var(--warm-black); margin-bottom: 0.2rem; }
.sheet-hint { font-size: 0.78rem; color: var(--warm-gray-light); font-style: italic; margin-bottom: 1.2rem; }
.routine-field { margin-bottom: 1.2rem; }
.routine-field label { display: block; font-family: var(--font-accent); font-size: 0.92rem; font-weight: 500; color: var(--warm-black); margin-bottom: 0.4rem; }
.routine-field textarea { width: 100%; min-height: 70px; padding: 0.8rem; border: 2px solid var(--sand-dark); border-radius: var(--radius-sm); font-family: var(--font-body); font-size: 0.88rem; color: var(--warm-black); background: var(--sand-light); resize: vertical; transition: border-color 0.3s ease; line-height: 1.6; }
.routine-field textarea:focus { outline: none; border-color: var(--terracotta); background: var(--white); }
.save-indicator { font-size: 0.72rem; color: var(--sage); font-style: italic; margin-top: 0.2rem; opacity: 0; transition: opacity 0.3s; }
.save-indicator.show { opacity: 1; }
.state-check { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; margin-bottom: 1.2rem; }
.state-item label { font-size: 0.75rem; font-weight: 600; color: var(--warm-gray); text-transform: uppercase; letter-spacing: 0.05em; display: block; margin-bottom: 3px; }
.state-item input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 5px; background: var(--sand-dark); border-radius: 3px; outline: none; }
.state-item input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 18px; height: 18px; background: var(--terracotta); border-radius: 50%; cursor: pointer; }
.state-val { text-align: center; font-family: var(--font-display); font-size: 1rem; font-weight: 700; color: var(--terracotta); }

/* === BUTTONS === */
.complete-btn { display: block; width: 100%; padding: 1.2rem; background: var(--terracotta); color: var(--white); border: none; border-radius: var(--radius-md); font-family: var(--font-display); font-size: 1.05rem; font-weight: 600; cursor: pointer; transition: all 0.3s ease; margin-top: 1.5rem; box-shadow: 0 4px 16px rgba(196,112,75,0.3); }
.complete-btn:hover { background: var(--terracotta-dark); transform: translateY(-2px); }
.complete-btn.done { background: var(--sage); cursor: default; box-shadow: none; }
.complete-btn.done:hover { transform: none; }
.completion-msg { text-align: center; padding: 1.2rem; background: var(--cream); border-radius: var(--radius-md); margin-top: 0.8rem; display: none; }
.completion-msg.show { display: block; }
.completion-msg p { font-family: var(--font-accent); color: var(--warm-gray); font-size: 0.92rem; }
.next-day-hint { color: var(--terracotta); font-weight: 600; }
.day-nav { display: flex; justify-content: space-between; gap: 0.8rem; margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--sand-dark); }
.day-nav-btn { flex: 1; padding: 0.8rem 1rem; background: var(--sand); color: var(--warm-black); border: 2px solid var(--sand-dark); border-radius: var(--radius-md); font-family: var(--font-body); font-size: 0.9rem; font-weight: 600; cursor: pointer; transition: all 0.3s ease; text-align: center; }
.day-nav-btn:hover { background: var(--terracotta); color: var(--white); border-color: var(--terracotta); }
.day-nav-btn.next { background: var(--warm-black); color: var(--sand); border-color: var(--warm-black); }
.day-nav-btn.next:hover { background: var(--terracotta); border-color: var(--terracotta); color: var(--white); }

/* === MISC === */
.divider { height: 1px; background: linear-gradient(90deg, transparent, var(--sand-dark), transparent); margin: 1.5rem 0; }
.disclaimer { text-align: center; padding: 0.8rem; font-size: 0.75rem; color: var(--warm-gray-light); font-style: italic; border-top: 1px solid var(--sand-dark); margin-top: 1.5rem; }
.storage-notice { background: var(--sand); border-radius: var(--radius-sm); padding: 0.4rem 0.8rem; font-size: 0.75rem; color: var(--warm-gray-light); margin-top: 0.8rem; }
/* === WELCOME LOGO === */
.welcome-logo {
  display: block;
  width: 64px;
  height: 64px;
  margin: 0 auto 1.2rem;
  opacity: 0.85;
}

/* === FOOTER LOGO === */
.footer-logo {
  margin-bottom: 1rem;
}
.footer-logo-img {
  width: 44px;
  height: 44px;
  opacity: 0.7;
  transition: opacity 0.3s ease;
  filter: invert(1);
}
.footer-logo-img:hover {
  opacity: 1;
}

.app-footer { background: var(--warm-black); color: var(--warm-gray-light); text-align: center; padding: 1.5rem; font-size: 0.78rem; }
.app-footer a { color: var(--terracotta-light); text-decoration: none; }
/* === ACCESS GATE === */
.access-gate {
  text-align: center;
  padding: 3rem 1.5rem;
  max-width: 400px;
  margin: 0 auto;
}
.gate-logo {
  width: 72px;
  height: 72px;
  margin-bottom: 1.5rem;
  border-radius: 50%;
}
.gate-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--warm-black);
  margin-bottom: 0.4rem;
}
.gate-subtitle {
  font-family: var(--font-accent);
  font-style: italic;
  font-size: 1rem;
  color: var(--warm-gray);
  margin-bottom: 2rem;
}
.gate-form {
  margin-bottom: 1.5rem;
}
.gate-input {
  display: block;
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--sand-dark);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--warm-black);
  background: var(--white);
  text-align: center;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transition: border-color 0.3s ease;
  margin-bottom: 1rem;
}
.gate-input:focus {
  outline: none;
  border-color: var(--terracotta);
}
.gate-input::placeholder {
  text-transform: none;
  letter-spacing: normal;
  font-weight: 400;
  color: var(--warm-gray-light);
}
.gate-btn {
  display: block;
  width: 100%;
  padding: 1rem;
  background: var(--terracotta);
  color: var(--white);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(196,112,75,0.3);
}
.gate-btn:hover {
  background: var(--terracotta-dark);
  transform: translateY(-1px);
}
.gate-error {
  color: #c0392b;
  font-size: 0.88rem;
  margin-top: 0.8rem;
  min-height: 1.2em;
}
.gate-hint {
  font-size: 0.82rem;
  color: var(--warm-gray-light);
  line-height: 1.5;
  font-style: italic;
}

/* === SCROLL TOP === */
.scroll-top { position: fixed; bottom: 20px; right: 20px; width: 40px; height: 40px; background: var(--terracotta); color: var(--white); border: none; border-radius: 50%; font-size: 1.1rem; cursor: pointer; box-shadow: 0 3px 12px rgba(196,112,75,0.4); opacity: 0; pointer-events: none; transition: all 0.3s ease; z-index: 200; }
.scroll-top.visible { opacity: 1; pointer-events: all; }

/* === RESPONSIVE === */
@media (max-width: 600px) {
  .app-header h1 { font-size: 1.1rem; }
  .app-header { padding: 0.8rem 1rem; }
  .progress-container { top: 66px; padding: 0.4rem 1rem; }
  .nav-container { top: 90px; }
  .main-content { padding: 1.2rem 0.8rem; }
  .logo-text { font-size: 1.9rem; }
  .day-number { font-size: 2.5rem; }
  .day-title { font-size: 1.25rem; }
  .meta-box { grid-template-columns: 1fr; }
  .state-check { grid-template-columns: 1fr; }
}