@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;600;700;800&family=Inter:wght@400;500;600&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:wght,FILL@100..700,0..1&display=swap');

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

:root {
  --background: #f9f9fb;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f3f3f5;
  --surface-container: #eeeef0;
  --surface-container-high: #e8e8ea;
  --surface-container-highest: #e2e2e4;
  --on-surface: #1a1c1d;
  --on-surface-variant: #454652;
  --outline: #767683;
  --outline-variant: #c6c5d4;
  --primary: #000666;
  --primary-container: #1a237e;
  --on-primary-container: #8690ee;
  --secondary-container: #c6e4f4;
  --error-container: #ffdad6;
  --on-error-container: #93000a;
  --tertiary-fixed-dim: #e6bdb5;
  --custom-safe: #E8F5E9;
  --custom-warning: #FFF8E1;
  --custom-danger: #FBE9E7;
  --shadow-ambient: 0 20px 40px rgba(0, 6, 102, 0.04);
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--background);
  color: var(--on-surface);
  min-height: 100dvh;
  padding-bottom: 5.5rem;
}

.font-headline { font-family: 'Manrope', sans-serif; }

.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  font-size: 24px; line-height: 1; vertical-align: middle;
  user-select: none;
}
.fill-icon { font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24; }

/* Header */
.app-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--background);
  display: flex; justify-content: space-between; align-items: center;
  padding: 1rem 1.5rem;
}
.app-header h1 {
  font-family: 'Manrope', sans-serif; font-weight: 800; font-size: 1.1rem;
  color: var(--primary); letter-spacing: -0.03em;
}
.header-avatar {
  width: 2.5rem; height: 2.5rem; border-radius: 9999px;
  background: var(--surface-container-high);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary); font-size: 1.1rem; font-weight: 700;
  font-family: 'Manrope', sans-serif;
  border: 2px solid var(--surface-container-highest);
  cursor: pointer;
}

/* Bottom Nav */
.bottom-nav {
  position: fixed; bottom: 0; left: 0; width: 100%;
  display: flex; justify-content: space-around; align-items: center;
  padding: 0.75rem 1rem 1.5rem;
  background: rgba(255,255,255,0.65);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(198,197,212,0.2);
  box-shadow: var(--shadow-ambient);
  border-radius: 1.5rem 1.5rem 0 0;
  z-index: 50;
}
.nav-item {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px; padding: 0.5rem; cursor: pointer;
  color: #94a3b8; text-decoration: none;
  font-size: 0.68rem; font-weight: 500; letter-spacing: 0.03em;
  transition: color 0.2s; border: none; background: none; font-family: 'Inter', sans-serif;
}
.nav-item:hover { color: var(--primary-container); }
.nav-item.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  color: white; border-radius: 9999px;
  padding: 0.75rem; margin-bottom: 0.25rem;
}

/* Cards */
.card {
  background: var(--surface-container-lowest);
  border-radius: 1.5rem; padding: 2rem;
  box-shadow: var(--shadow-ambient);
  position: relative; overflow: hidden;
}
.card-low {
  background: var(--surface-container-low);
  border-radius: 1.5rem; padding: 1.5rem;
}

.stripe-danger { border-left: 4px solid #E57373; }
.stripe-warning { border-left: 4px solid #FFB74D; }
.stripe-safe { border-left: 4px solid #66BB6A; }
.stripe-secondary { border-left: 4px solid var(--secondary-container); }
.stripe-primary { border-left: 4px solid rgba(0,6,102,0.2); }
.stripe-error { border-left: 4px solid var(--error-container); }

/* Gauge */
.gauge-track {
  width: 100%; height: 8px;
  background: var(--surface-container-high);
  border-radius: 9999px; overflow: hidden;
}
.gauge-fill { height: 100%; border-radius: 9999px; transition: width 0.6s ease; }

/* Buttons */
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  color: white; border: none; border-radius: 9999px;
  padding: 1rem 2.5rem; font-family: 'Manrope', sans-serif;
  font-weight: 700; font-size: 0.875rem; letter-spacing: 0.05em;
  cursor: pointer; box-shadow: 0 8px 24px rgba(0,6,102,0.2);
  transition: transform 0.15s;
}
.btn-primary:active { transform: scale(0.97); }

.btn-chip {
  padding: 0.5rem 1.25rem; border-radius: 9999px;
  background: var(--surface-container-low); border: none;
  font-family: 'Manrope', sans-serif; font-weight: 700; font-size: 0.8rem;
  color: var(--on-surface-variant); cursor: pointer;
  transition: background 0.2s, color 0.2s; white-space: nowrap;
}
.btn-chip.active { background: var(--primary); color: white; }
.btn-chip:hover:not(.active) { background: var(--surface-container-high); }

/* Inputs */
textarea, input[type="text"], input[type="date"], input[type="number"] {
  width: 100%; background: var(--surface-container-low);
  border: none; border-radius: 0.75rem;
  padding: 1rem; font-family: 'Inter', sans-serif; font-size: 0.875rem;
  color: var(--on-surface); resize: none; outline: none;
  transition: background 0.2s;
}
textarea:focus, input:focus { background: var(--surface-container-highest); }
textarea::placeholder, input::placeholder { color: rgba(118,118,131,0.5); }

/* Page fade */
#page-content { animation: fadeIn 0.22s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }

/* Calendar */
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 3px; }
.cal-day {
  aspect-ratio: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  border-radius: 0.5rem; font-size: 0.8rem; font-weight: 600;
  position: relative; cursor: pointer; transition: transform 0.1s;
}
.cal-day:active { transform: scale(0.9); }
.cal-day.other-month { color: rgba(118,118,131,0.3); background: transparent !important; }
.cal-day.today { outline: 2px solid var(--primary); outline-offset: 1px; }
.cal-day.safe { background: var(--custom-safe); }
.cal-day.warning { background: var(--custom-warning); }
.cal-day.danger { background: var(--custom-danger); }
.cal-day .dot {
  position: absolute; bottom: 3px;
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--primary);
}

/* Mood buttons */
.mood-btn {
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
  padding: 1rem; border-radius: 0.75rem;
  background: var(--surface-container-low); border: none; cursor: pointer;
  transition: background 0.2s, transform 0.1s; flex: 1;
}
.mood-btn:active { transform: scale(0.95); }
.mood-btn.selected { background: rgba(0,6,102,0.06); outline: 2px solid var(--primary); }
.mood-btn .material-symbols-outlined { font-size: 2rem; }
.mood-btn .label { font-size: 0.68rem; font-weight: 600; color: var(--on-surface-variant); }

/* Log card */
.log-card {
  position: relative; overflow: hidden;
  background: var(--surface-container-low);
  border-radius: 1rem; padding: 1.5rem 1.5rem 1.5rem 2rem;
  display: flex; gap: 1.5rem;
}

/* Phase scroll */
.phase-scroll { display: flex; gap: 0.75rem; overflow-x: auto; padding-bottom: 0.5rem; }
.phase-scroll::-webkit-scrollbar { display: none; }

/* Setup modal */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.35);
  backdrop-filter: blur(4px); z-index: 100;
  display: flex; align-items: center; justify-content: center; padding: 1.5rem;
}
.modal {
  background: var(--surface-container-lowest);
  border-radius: 1.5rem; padding: 2rem;
  width: 100%; max-width: 420px;
  box-shadow: 0 32px 64px rgba(0,6,102,0.12);
}
.modal h2 { font-family: 'Manrope', sans-serif; font-weight: 800; font-size: 1.5rem; color: var(--primary); margin-bottom: 0.5rem; }
.modal p { color: var(--on-surface-variant); font-size: 0.9rem; margin-bottom: 1.5rem; line-height: 1.6; }
.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--on-surface-variant); margin-bottom: 0.5rem; }

/* Toast */
.toast {
  position: fixed; bottom: 6rem; left: 50%; transform: translateX(-50%);
  background: var(--on-surface); color: white;
  padding: 0.75rem 1.5rem; border-radius: 9999px;
  font-size: 0.875rem; font-weight: 500; z-index: 200;
  animation: toastIn 0.3s ease, toastOut 0.3s ease 1.7s forwards;
  white-space: nowrap; pointer-events: none;
}
@keyframes toastIn { from { opacity: 0; transform: translateX(-50%) translateY(10px); } to { opacity: 1; transform: translateX(-50%) translateY(0); } }
@keyframes toastOut { to { opacity: 0; transform: translateX(-50%) translateY(10px); } }

/* Bento 2-col */
@media (min-width: 540px) { .bento-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; } }
.bento-2 > * + * { margin-top: 1.5rem; }
@media (min-width: 540px) { .bento-2 > * + * { margin-top: 0; } }

main { max-width: 640px; margin: 0 auto; padding: 2rem 1.5rem; }
.section-gap { margin-top: 2rem; }
.label-xs { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--on-surface-variant); }

/* Forecast bar */
.forecast-bar { display: flex; width: 100%; height: 12px; border-radius: 9999px; overflow: hidden; gap: 2px; }
.forecast-seg { flex: 1; height: 100%; }
.forecast-seg:first-child { border-radius: 9999px 0 0 9999px; }
.forecast-seg:last-child { border-radius: 0 9999px 9999px 0; }

/* Guide list */
.guide-list { display: flex; flex-direction: column; gap: 1.5rem; }
.guide-item { display: flex; gap: 1rem; }
.guide-icon {
  flex-shrink: 0; width: 1.75rem; height: 1.75rem; border-radius: 9999px;
  display: flex; align-items: center; justify-content: center;
  margin-top: 2px;
}
.guide-icon.do { background: rgba(0,6,102,0.06); color: var(--primary); }
.guide-icon.dont { background: rgba(255,218,214,0.5); color: var(--on-error-container); }
.guide-item strong { display: block; font-weight: 700; font-size: 0.9rem; margin-bottom: 0.2rem; }
.guide-item p { font-size: 0.82rem; color: var(--on-surface-variant); line-height: 1.5; }