/**
 * assets/css/components.css
 *
 * Shared UI components used across multiple pages.
 * Loaded on every page via includes/head-common.php.
 *
 * Components defined here:
 *   - Glassmorphism cards
 *   - Buttons (primary, secondary, ghost, icon)
 *   - Mood picker
 *   - Dialog / modal
 *   - Form elements
 *   - Badge / tag
 *   - Empty state
 *   - Toast / aria-live announcement
 *   - Navigation (shared with header.php styles)
 */

/* =========================================================
   GLASSMORPHISM CARD
   ========================================================= */

.card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition:
    background var(--duration-mid) var(--ease-gentle),
    border-color var(--duration-mid) var(--ease-gentle),
    box-shadow var(--duration-mid) var(--ease-gentle);
}

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

.card--glow:hover {
  box-shadow: var(--shadow-glow);
}

.card--sm {
  padding: var(--space-5) var(--space-6);
  border-radius: var(--radius-md);
}

.card--flush {
  padding: 0;
}

/* =========================================================
   BUTTONS
   ========================================================= */

/* Primary — the emotional CTA button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 500;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition:
    transform var(--duration-fast) var(--ease-spring),
    box-shadow var(--duration-fast) var(--ease-gentle),
    background var(--duration-fast) var(--ease-gentle),
    opacity var(--duration-fast) var(--ease-gentle);
  cursor: pointer;
  border: none;
  text-decoration: none;
  min-height: 44px;
  min-width: 44px;
}

.btn:active {
  transform: scale(0.97);
}

.btn--primary {
  background: var(--gold-lantern);
  color: var(--navy-deepest);
  box-shadow: 0 0 20px rgba(232, 201, 122, 0.2);
}

.btn--primary:hover {
  background: var(--gold-warm);
  color: var(--navy-deepest);
  box-shadow: 0 0 32px rgba(232, 201, 122, 0.35);
  transform: translateY(-1px);
}

.btn--primary:active {
  transform: scale(0.95) translateY(0);
}

.btn--secondary {
  background: var(--glass-bg);
  color: var(--moon-white);
  border: 1px solid var(--glass-border);
}

.btn--secondary:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  color: var(--moon-white);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-2);
  border: 1px solid transparent;
}

.btn--ghost:hover {
  color: var(--moon-white);
  border-color: var(--glass-border);
}

.btn--sm {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
  min-height: 36px;
}

.btn--lg {
  padding: var(--space-5) var(--space-12);
  font-size: var(--text-lg);
  min-height: 56px;
}

/* Acknowledgment CTA — special styling */
.btn--cta {
  background: linear-gradient(
    135deg,
    rgba(232, 201, 122, 0.15) 0%,
    rgba(157, 142, 196, 0.15) 100%
  );
  color: var(--moon-white);
  border: 1px solid rgba(232, 201, 122, 0.3);
  font-family: var(--font-display);
  font-size: clamp(var(--text-xl), 2.5vw, var(--text-2xl));
  font-weight: 400;
  padding: var(--space-5) var(--space-12);
  letter-spacing: 0.01em;
  box-shadow:
    0 0 32px rgba(232, 201, 122, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.btn--cta:hover {
  background: linear-gradient(
    135deg,
    rgba(232, 201, 122, 0.22) 0%,
    rgba(157, 142, 196, 0.22) 100%
  );
  border-color: rgba(232, 201, 122, 0.5);
  color: var(--moon-white);
  box-shadow:
    0 0 48px rgba(232, 201, 122, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.btn--cta:active {
  transform: scale(0.95);
}

.btn--cta[data-state="processing"] {
  opacity: 0.7;
  pointer-events: none;
}

.btn--danger {
  background: transparent;
  color: #c87070;
  border: 1px solid rgba(200, 112, 112, 0.3);
}

.btn--danger:hover {
  background: rgba(200, 112, 112, 0.08);
  border-color: rgba(200, 112, 112, 0.5);
  color: #e08080;
}

/* =========================================================
   MOOD PICKER
   ========================================================= */

.mood-picker {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
}

.mood-option {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--moon-soft);
  cursor: pointer;
  transition:
    background var(--duration-fast) var(--ease-gentle),
    border-color var(--duration-fast) var(--ease-gentle),
    color var(--duration-fast) var(--ease-gentle),
    transform var(--duration-fast) var(--ease-spring);
  min-height: 44px;
  min-width: 44px;
}

.mood-option:hover {
  background: var(--glass-bg-hover);
  border-color: rgba(232, 201, 122, 0.25);
  color: var(--moon-white);
}

.mood-option.is-selected {
  background: rgba(232, 201, 122, 0.12);
  border-color: rgba(232, 201, 122, 0.4);
  color: var(--gold-lantern);
}

.mood-option:active {
  transform: scale(0.95);
}

.mood-option__emoji {
  font-size: var(--text-lg);
  line-height: 1;
}

/* =========================================================
   DIALOG / MODAL
   ========================================================= */

.dialog-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(8, 13, 26, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: var(--z-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  opacity: 0;
  transition: opacity var(--duration-mid) var(--ease-gentle);
}

.dialog-backdrop.is-visible {
  opacity: 1;
}

.dialog {
  position: relative;
  width: 100%;
  max-width: 520px;
  background: var(--navy-mid);
  border: 1px solid var(--glass-border-hover);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-lg);
  transform: translateY(16px) scale(0.98);
  transition:
    transform var(--duration-mid) var(--ease-spring),
    opacity var(--duration-mid) var(--ease-gentle);
  opacity: 0;
}

.dialog-backdrop.is-visible .dialog {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.dialog__close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  color: var(--moon-dim);
  font-size: var(--text-xl);
  line-height: 1;
  transition:
    background var(--duration-fast) var(--ease-gentle),
    color var(--duration-fast) var(--ease-gentle);
}

.dialog__close:hover {
  background: var(--glass-bg-hover);
  color: var(--moon-white);
}

.dialog__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--moon-white);
  margin-bottom: var(--space-4);
}

.dialog__body {
  color: var(--moon-soft);
  line-height: 1.7;
}

/* =========================================================
   FORM ELEMENTS
   ========================================================= */

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--text-sm);
  color: var(--moon-soft);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.form-input,
.form-textarea,
.form-select {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  color: var(--moon-white);
  font-size: var(--text-base);
  width: 100%;
  transition:
    border-color var(--duration-fast) var(--ease-gentle),
    box-shadow var(--duration-fast) var(--ease-gentle);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--moon-dim);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: rgba(232, 201, 122, 0.4);
  box-shadow: 0 0 0 3px rgba(232, 201, 122, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
  line-height: 1.6;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%238a8799' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-10);
  cursor: pointer;
}

.form-select option {
  background: var(--navy-mid);
  color: var(--moon-white);
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--moon-dim);
}

.form-error {
  font-size: var(--text-xs);
  color: #c87070;
}

.char-count {
  font-size: var(--text-xs);
  color: var(--moon-dim);
  text-align: right;
  font-family: var(--font-mono);
}

.char-count.is-near-limit {
  color: var(--gold-lantern);
}

.char-count.is-at-limit {
  color: #c87070;
}

/* =========================================================
   BADGE / TAG
   ========================================================= */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  color: var(--moon-soft);
  letter-spacing: 0.03em;
}

/* =========================================================
   EMPTY STATE
   ========================================================= */

.empty-state {
  text-align: center;
  padding: var(--space-16) var(--space-8);
  color: var(--moon-dim);
}

.empty-state__icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
  opacity: 0.5;
}

.empty-state__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--moon-soft);
  margin-bottom: var(--space-3);
}

.empty-state__text {
  font-size: var(--text-base);
  max-width: 40ch;
  margin-inline: auto;
}

/* =========================================================
   LIVE ANNOUNCEMENT REGION
   ========================================================= */

.live-region {
  position: fixed;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-dialog);
  min-width: 280px;
  max-width: 520px;
  text-align: center;
  pointer-events: none;
}

.announcement-card {
  background: var(--navy-mid);
  border: 1px solid rgba(232, 201, 122, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-8);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity var(--duration-slow) var(--ease-gentle),
    transform var(--duration-slow) var(--ease-spring);
}

.announcement-card.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.announcement-card__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--gold-lantern);
  margin-bottom: var(--space-2);
}

.announcement-card__text {
  color: var(--moon-soft);
  font-size: var(--text-base);
}

/* =========================================================
   ACCORDION (FAQ)
   ========================================================= */

.accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.accordion__item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--duration-fast) var(--ease-gentle);
}

.accordion__item:hover {
  border-color: var(--glass-border-hover);
}

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--moon-white);
  text-align: left;
  cursor: pointer;
  gap: var(--space-4);
  min-height: 60px;
  background: transparent;
  border: none;
}

.accordion__trigger:hover {
  color: var(--gold-lantern);
}

.accordion__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--moon-dim);
  transition: transform var(--duration-fast) var(--ease-gentle);
}

.accordion__item[open] .accordion__icon {
  transform: rotate(180deg);
}

.accordion__item[open] .accordion__trigger {
  color: var(--gold-lantern);
}

.accordion__content {
  padding: 0 var(--space-6) var(--space-5);
  color: var(--moon-soft);
  line-height: 1.75;
}

/* =========================================================
   SUBJECT TYPE SELECTOR
   ========================================================= */

.type-selector {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.type-option {
  padding: var(--space-2) var(--space-4);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--moon-soft);
  cursor: pointer;
  transition:
    background var(--duration-fast) var(--ease-gentle),
    border-color var(--duration-fast) var(--ease-gentle),
    color var(--duration-fast) var(--ease-gentle);
  min-height: 36px;
}

.type-option:hover {
  background: var(--glass-bg-hover);
  color: var(--moon-white);
}

.type-option.is-selected {
  background: rgba(157, 142, 196, 0.12);
  border-color: rgba(157, 142, 196, 0.4);
  color: var(--lavender-soft);
}

/* =========================================================
   MEMORY LIST ITEM (shared between History and Journal)
   ========================================================= */

.memory-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  transition:
    background var(--duration-fast) var(--ease-gentle),
    border-color var(--duration-fast) var(--ease-gentle);
}

.memory-item:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
}

.memory-item__icon {
  font-size: var(--text-xl);
  line-height: 1;
  flex-shrink: 0;
  margin-top: 2px;
}

.memory-item__body {
  flex: 1;
  min-width: 0;
}

.memory-item__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-1);
}

.memory-item__date {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--moon-dim);
}

.memory-item__label {
  font-size: var(--text-base);
  color: var(--moon-white);
  font-weight: 500;
}

.memory-item__note {
  font-size: var(--text-sm);
  color: var(--moon-soft);
  margin-top: var(--space-1);
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.memory-item__actions {
  display: flex;
  gap: var(--space-2);
  flex-shrink: 0;
}

/* =========================================================
   CONFIRMATION DIALOG
   ========================================================= */

.confirm-dialog__message {
  color: var(--moon-soft);
  margin-bottom: var(--space-6);
  line-height: 1.7;
}

.confirm-dialog__actions {
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
  flex-wrap: wrap;
}

/* =========================================================
   LOADING STATE
   ========================================================= */

.is-loading {
  opacity: 0.6;
  pointer-events: none;
}

/* =========================================================
   UTILITY CLASSES
   ========================================================= */

.is-hidden {
  display: none !important;
}

.is-invisible {
  visibility: hidden;
  opacity: 0;
}

.flow > * + * {
  margin-top: var(--space-6);
}

.flow--sm > * + * {
  margin-top: var(--space-3);
}

.flow--lg > * + * {
  margin-top: var(--space-10);
}