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

:root {
  --bg: #0f1117;
  --bg-card: #1a1d27;
  --bg-card-hover: #222633;
  --text: #e8e8ed;
  --text-muted: #8b8d97;
  --accent: #6c63ff;
  --accent-light: #8b83ff;
  --accent-glow: rgba(108, 99, 255, 0.25);
  --success: #4ade80;
  --success-bg: rgba(74, 222, 128, 0.12);
  --danger: #f87171;
  --border: #2a2d3a;
  --radius: 16px;
  --radius-sm: 10px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

button {
  font-family: var(--font);
  cursor: pointer;
  border: none;
  outline: none;
}

/* ========== Layout ========== */
.app-container {
  max-width: 480px;
  margin: 0 auto;
  padding: 24px 20px 40px;
  min-height: 100dvh;
}

.page-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.page-subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 28px;
}

/* ========== Cards ========== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  transition: background 0.2s;
}

.card:hover {
  background: var(--bg-card-hover);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 600;
}

.card-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 500;
}

.card-status.done {
  color: var(--success);
}

.card-status.todo {
  color: var(--text-muted);
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all 0.2s;
  width: 100%;
}

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

.btn-primary:hover {
  background: var(--accent-light);
  box-shadow: 0 0 20px var(--accent-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--text);
}

.btn-success {
  background: var(--success);
  color: #0f1117;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

/* ========== Form ========== */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 1rem;
  font-family: var(--font);
  transition: border-color 0.2s;
}

.form-input:focus {
  border-color: var(--accent);
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-glow);
}

textarea.form-input {
  resize: vertical;
  min-height: 200px;
  line-height: 1.7;
}

/* ========== Breathing ========== */
.breathing-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 70dvh;
  gap: 32px;
}

.breathing-ring-wrapper {
  position: relative;
  width: 220px;
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.breathing-ring {
  width: 220px;
  height: 220px;
  transform: rotate(-90deg);
}

.breathing-ring-bg {
  fill: none;
  stroke: var(--border);
  stroke-width: 6;
}

.breathing-ring-progress {
  fill: none;
  stroke: var(--accent);
  stroke-width: 6;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.3s linear;
  filter: drop-shadow(0 0 8px var(--accent-glow));
}

.breathing-ball {
  position: absolute;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, var(--accent-light), var(--accent));
  box-shadow: 0 0 40px var(--accent-glow), 0 0 80px rgba(108, 99, 255, 0.1);
  transition: transform 0.3s ease-in-out;
}

.breathing-ball.inhale {
  animation: pulse-grow var(--phase-duration) ease-in-out forwards;
}

.breathing-ball.exhale {
  animation: pulse-shrink var(--phase-duration) ease-in-out forwards;
}

.breathing-ball.hold {
  animation: pulse-hold var(--phase-duration) ease-in-out forwards;
}

@keyframes pulse-grow {
  from { transform: scale(0.6); }
  to { transform: scale(1.15); }
}

@keyframes pulse-shrink {
  from { transform: scale(1.15); }
  to { transform: scale(0.6); }
}

@keyframes pulse-hold {
  from { transform: scale(1.15); }
  to { transform: scale(1.1); }
}

.breathing-phase-text {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.breathing-countdown {
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent-light);
  font-variant-numeric: tabular-nums;
}

.breathing-time-left {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

/* ========== Completion Screen ========== */
.completion-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 70dvh;
  gap: 20px;
  text-align: center;
}

.completion-icon {
  font-size: 4rem;
  margin-bottom: 8px;
}

.completion-title {
  font-size: 1.6rem;
  font-weight: 700;
}

.completion-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.completion-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  max-width: 300px;
}

/* ========== Journal History ========== */

/* Calendar */
.calendar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 24px;
}

.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.calendar-month {
  font-size: 1.05rem;
  font-weight: 700;
  text-transform: capitalize;
}

.calendar-nav {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: transparent;
  color: var(--text);
  font-size: 1.4rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
  padding: 0;
}

.calendar-nav:hover:not(:disabled) {
  background: var(--bg-card-hover);
}

.calendar-nav:disabled {
  color: var(--border);
  cursor: default;
}

.calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  margin-bottom: 4px;
}

.calendar-weekdays span {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 6px 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}

.calendar-day {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 500;
  border-radius: 50%;
  background: transparent;
  color: var(--text);
  position: relative;
  transition: background 0.15s;
  padding: 0;
  width: 100%;
  aspect-ratio: 1;
}

.calendar-day.empty {
  pointer-events: none;
}

.calendar-day.future {
  color: #2a2d3a;
  cursor: default;
}

.calendar-day:not(.empty):not(.future):hover {
  background: var(--bg-card-hover);
}

.calendar-day.today:not(.selected) {
  color: var(--accent-light);
  font-weight: 700;
}

.calendar-day.selected {
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}

.calendar-day.selected.has-entry::after {
  background: #fff;
}

.calendar-day.has-entry::after {
  content: '';
  position: absolute;
  bottom: 3px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent-light);
}

/* Day view */
.day-view {
  margin-top: 0;
}

.day-view-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  gap: 12px;
}

.day-view-date {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-light);
  text-align: center;
  flex: 1;
  text-transform: capitalize;
}

.day-nav {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 1.3rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 0;
  transition: background 0.2s, border-color 0.2s;
}

.day-nav:hover:not(:disabled) {
  background: var(--bg-card-hover);
  border-color: var(--accent);
}

.day-nav:disabled {
  color: var(--border);
  border-color: var(--border);
  cursor: default;
}

.empty-day {
  text-align: center;
  color: var(--text-muted);
  padding: 40px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.empty-day p {
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.empty-day .btn {
  width: auto;
  display: inline-flex;
}

/* ========== Activity Recap ========== */
.recap-section {
  margin-bottom: 32px;
}

.recap-section-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.recap-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.recap-row {
  display: grid;
  grid-template-columns: 100px 1fr 1fr 1fr;
  gap: 8px;
  align-items: center;
  padding: 10px 12px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.recap-row-header {
  background: transparent;
  border: none;
  padding-bottom: 4px;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 600;
}

.recap-date {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

.recap-check {
  text-align: center;
  font-size: 1rem;
}

.recap-check.done { color: var(--success); }
.recap-check.missed { color: #444; }

/* ========== Nav Links ========== */
.bottom-links {
  display: flex;
  gap: 12px;
  margin-top: 28px;
}

.bottom-links .btn {
  flex: 1;
}

/* ========== Auth ========== */
.auth-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  padding: 24px 20px;
}

.auth-card {
  width: 100%;
  max-width: 380px;
}

.auth-logo {
  font-size: 2rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.auth-tagline {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 32px;
}

.auth-error {
  background: rgba(248, 113, 113, 0.1);
  border: 1px solid rgba(248, 113, 113, 0.3);
  color: var(--danger);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  margin-bottom: 16px;
  display: none;
}

.auth-error.visible {
  display: block;
}

/* ========== Loading ========== */
.loading-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ========== Save indicator ========== */
.save-indicator {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 8px;
  min-height: 1.2em;
}

.save-indicator.saved {
  color: var(--success);
}

/* ========== Responsive ========== */
@media (max-width: 480px) {
  .app-container {
    padding: 20px 16px 32px;
  }
}

/* ========== Back link ========== */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 20px;
  text-decoration: none;
}

.back-link:hover {
  color: var(--text);
  text-decoration: none;
}

/* ========== Journal entry content (shared) ========== */
.journal-entry-content {
  width: 100%;
  padding: 16px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.95rem;
  font-family: var(--font);
  line-height: 1.8;
  resize: vertical;
  min-height: 220px;
  transition: border-color 0.2s;
}

.journal-entry-content:focus {
  border-color: var(--accent);
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* ========== Empty state ========== */
.empty-state {
  text-align: center;
  color: var(--text-muted);
  padding: 40px 20px;
  font-size: 0.95rem;
}