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

/* ─── Custom Properties ─── */
:root {
  --bg:         #FAF8F4;
  --bg-card:    #FFFFFF;
  --text:       #2C2825;
  --text-muted: #8A7F78;
  --accent:     #B5705A;
  --border:     #E8E2DC;
  --tag-bg:     #F2EDE8;

  --max-w:   680px;
  --pad-sm:  1.5rem;
  --pad-lg:  2.5rem;
}

/* ─── Base ─── */
html {
  font-size: 17px;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, sans-serif;
  line-height: 1.75;
  min-height: 100vh;
}

img {
  max-width: 100%;
  display: block;
}

/* ─── Typography ─── */
h1, h2, h3, h4 {
  font-family: 'Lora', serif;
  line-height: 1.3;
}

h1 { font-size: 2rem;   font-weight: 600; }
h2 { font-size: 1.5rem; font-weight: 600; }
h3 { font-size: 1.2rem; font-weight: 600; }

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

a:hover {
  text-decoration: underline;
}

.label {
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ─── Layout ─── */
main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--pad-sm);
}

@media (min-width: 640px) {
  main {
    padding: var(--pad-lg);
  }
}

/* ─── Site Nav ─── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem var(--pad-sm);
}

@media (min-width: 640px) {
  .site-nav {
    padding: 0.8rem var(--pad-lg);
  }
}

.nav-home {
  font-family: 'Lora', serif;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
}

.nav-home:hover {
  text-decoration: none;
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.nav-links a:hover {
  color: var(--accent);
  text-decoration: none;
}

/* ─── Home Page ─── */
.home-hero {
  width: 100%;
  height: 50vh;
  min-height: 240px;
  overflow: hidden;
}

.home-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.home-content {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--pad-sm);
  text-align: center;
}

@media (min-width: 640px) {
  .home-content {
    padding: var(--pad-lg);
  }
}

.home-heading {
  font-size: 2.5rem;
  font-weight: 400;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--text);
}

.home-subtitle {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 2.5rem;
}

.home-nav {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.home-nav-link {
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0.55rem 1.4rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.home-nav-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

/* ─── Cards ─── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
}

/* ─── Tags ─── */
.tag {
  display: inline-block;
  background: var(--tag-bg);
  border-radius: 4px;
  padding: 0.15rem 0.55rem;
  font-size: 12px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--text-muted);
  line-height: 1.6;
}

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

/* ─── Photo Grid ─── */
.photo-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

@media (min-width: 480px) {
  .photo-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.photo-grid img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: 8px;
}

/* ─── PIN Gate ─── */
.pin-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pin-card {
  text-align: center;
  width: 100%;
  max-width: 300px;
  padding: 1rem;
}

.pin-heading {
  font-family: 'Lora', serif;
  font-size: 1.75rem;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 2rem;
}

.pin-dots {
  display: flex;
  justify-content: center;
  gap: 0.875rem;
  margin-bottom: 2rem;
}

.pin-dot {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: transparent;
  transition: background 0.12s ease, border-color 0.12s ease;
}

.pin-dot--filled {
  background: var(--accent);
  border-color: var(--accent);
}

.pin-keypad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.625rem;
}

.pin-key {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 1.25rem;
  font-family: 'Lora', serif;
  color: var(--text);
  padding: 0.875rem 0;
  cursor: pointer;
  transition: background 0.1s ease, border-color 0.1s ease;
  user-select: none;
  -webkit-user-select: none;
  line-height: 1;
}

.pin-key:hover:not(:disabled) {
  background: var(--tag-bg);
  border-color: var(--accent);
}

.pin-key:active:not(:disabled) {
  background: var(--border);
}

.pin-key--del {
  font-size: 1rem;
  font-family: system-ui, -apple-system, sans-serif;
  color: var(--text-muted);
}

.pin-key--blank {
  background: transparent;
  border: none;
  pointer-events: none;
  display: block;
}

@keyframes pin-shake {
  0%,  100% { transform: translateX(0); }
  20%        { transform: translateX(-10px); }
  40%        { transform: translateX(10px); }
  60%        { transform: translateX(-7px); }
  80%        { transform: translateX(7px); }
}

.pin-shake {
  animation: pin-shake 0.45s ease-in-out;
}

/* ─── Page Headings ─── */
.page-header {
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  margin-bottom: 0.25rem;
}

/* ─── Lists (Letters, Memories) ─── */
.entry-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.entry-row {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.15s ease;
}

.entry-row:hover {
  border-color: var(--accent);
  text-decoration: none;
  color: var(--text);
}

.entry-date {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

.entry-title {
  font-family: 'Lora', serif;
  font-size: 1.05rem;
  flex: 1;
}

.entry-sender {
  font-size: 13px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.entry-sender--nathan { color: var(--accent); }
.entry-sender--kajal  { color: #2E4A72; }

/* ─── Single Post (Letters, Memories) ─── */
.post-header {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.post-meta {
  display: flex;
  gap: 1rem;
  align-items: center;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.post-body {
  font-family: 'Lora', serif;
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text);
}

.post-body p + p {
  margin-top: 1.25em;
}

/* ─── Ideas Tabs ─── */
.tab-bar {
  display: flex;
  gap: 0.25rem;
  border-bottom: 2px solid var(--border);
  margin-bottom: 1.75rem;
}

.tab-btn {
  background: none;
  border: none;
  padding: 0.6rem 1rem;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.tab-btn:hover {
  color: var(--accent);
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.idea-cards {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.idea-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.idea-card-body {
  flex: 1;
}

.idea-name {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.125rem;
}

.idea-note {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ─── Forms ─── */
.form-field {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.65rem 0.875rem;
  font-size: 1rem;
  font-family: system-ui, -apple-system, sans-serif;
  color: var(--text);
  transition: border-color 0.15s ease;
  appearance: none;
  -webkit-appearance: none;
}

.form-textarea {
  resize: vertical;
  min-height: 160px;
  line-height: 1.7;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 0.7rem 1.5rem;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: opacity 0.15s ease;
  font-family: system-ui, -apple-system, sans-serif;
}

.btn:hover {
  opacity: 0.88;
  text-decoration: none;
  color: #fff;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.btn--ghost:hover {
  background: var(--tag-bg);
  color: var(--accent);
  opacity: 1;
}