/* ── Material You tokens ─────────────────────────────── */
:root {
  --md-primary: #6750A4;
  --md-on-primary: #FFFFFF;
  --md-primary-container: #EADDFF;
  --md-on-primary-container: #21005D;
  --md-secondary: #625B71;
  --md-on-secondary: #FFFFFF;
  --md-secondary-container: #E8DEF8;
  --md-on-secondary-container: #1D192B;
  --md-tertiary: #7D5260;
  --md-error: #B3261E;
  --md-error-container: #F9DEDC;
  --md-on-error: #FFFFFF;
  --md-surface: #FEF7FF;
  --md-on-surface: #1D1B20;
  --md-on-surface-variant: #49454F;
  --md-surface-variant: #E7E0EC;
  --md-outline: #79747E;
  --md-outline-variant: #CAC4D0;
  --md-surface-container-lowest: #FFFFFF;
  --md-surface-container-low: #F7F2FA;
  --md-surface-container: #F3EDF7;
  --md-surface-container-high: #ECE6F0;
  --md-surface-container-highest: #E6E0E9;
  --md-inverse-surface: #322F35;
  --md-inverse-on-surface: #F5EFF7;
  --md-shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.08);
  --md-shadow-lg: 0 4px 8px rgba(0,0,0,0.1), 0 2px 4px rgba(0,0,0,0.06);
  --md-radius-xs: 4px;
  --md-radius-sm: 8px;
  --md-radius-md: 12px;
  --md-radius-lg: 16px;
  --md-radius-xl: 28px;
  --md-radius-full: 9999px;
  --font: 'Inter', 'Segoe UI', Roboto, system-ui, sans-serif;
}

/* ── Reset ──────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  font-family: var(--font);
  background: var(--md-surface);
  color: var(--md-on-surface);
  min-height: 100vh;
  line-height: 1.5;
}
a { color: var(--md-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Top bar ────────────────────────────────────────── */
.topbar {
  position: sticky; top: 0; z-index: 100;
  background: var(--md-surface-container);
  border-bottom: 1px solid var(--md-outline-variant);
  backdrop-filter: blur(12px);
}
.topbar-inner {
  max-width: 680px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 16px; height: 56px;
}
.topbar-brand {
  display: flex; align-items: center; gap: 8px;
  font-weight: 600; font-size: 1.125rem;
  color: var(--md-on-surface) !important; text-decoration: none !important;
}
.topbar-brand .material-symbols-rounded { color: var(--md-primary); font-size: 28px; }
.topbar-actions { display: flex; gap: 4px; }

/* ── Icon button ────────────────────────────────────── */
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: var(--md-radius-full);
  background: transparent; border: none; cursor: pointer;
  color: var(--md-on-surface-variant); text-decoration: none !important;
  transition: background 0.15s;
}
.icon-btn:hover { background: var(--md-surface-container-highest); }
.icon-btn .material-symbols-rounded { font-size: 22px; }
.icon-btn-sm { width: 32px; height: 32px; }
.icon-btn-sm .material-symbols-rounded { font-size: 18px; }

/* ── Buttons ────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 24px; border-radius: var(--md-radius-xl);
  font-family: var(--font); font-size: 0.875rem; font-weight: 500;
  cursor: pointer; border: none; text-decoration: none !important;
  transition: box-shadow 0.15s, background 0.15s;
  min-height: 40px; white-space: nowrap;
}
.btn .material-symbols-rounded { font-size: 18px; }
.btn-filled { background: var(--md-primary); color: var(--md-on-primary); }
.btn-filled:hover { box-shadow: var(--md-shadow); }
.btn-tonal { background: var(--md-secondary-container); color: var(--md-on-secondary-container); }
.btn-tonal:hover { box-shadow: var(--md-shadow); }
.btn-text { background: transparent; color: var(--md-primary); padding: 10px 12px; }
.btn-text:hover { background: rgba(103,80,164,0.08); }
.btn-sm { min-height: 32px; padding: 6px 16px; font-size: 0.8125rem; }
.btn-full { width: 100%; justify-content: center; }

/* ── Flash messages ─────────────────────────────────── */
.flash-container {
  max-width: 680px; margin: 16px auto 0; padding: 0 16px;
}
.flash {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px; border-radius: var(--md-radius-md);
  font-size: 0.875rem; margin-bottom: 8px;
}
.flash .material-symbols-rounded { font-size: 20px; flex-shrink: 0; }
.flash-close {
  margin-left: auto; background: none; border: none;
  cursor: pointer; color: inherit; opacity: 0.6;
  display: flex; padding: 4px;
}
.flash-close:hover { opacity: 1; }
.flash-error { background: var(--md-error-container); color: var(--md-error); }
.flash-success { background: #d4f5d0; color: #1b5e20; }

/* ── Auth page ──────────────────────────────────────── */
.auth-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 24px;
}
.auth-card {
  width: 100%; max-width: 400px;
  background: var(--md-surface-container-lowest);
  border-radius: var(--md-radius-xl); padding: 40px 32px;
  box-shadow: var(--md-shadow-lg);
}
.auth-header { text-align: center; margin-bottom: 32px; }
.auth-icon {
  font-size: 48px; color: var(--md-primary);
  background: var(--md-primary-container);
  width: 80px; height: 80px; border-radius: var(--md-radius-full);
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.auth-header h1 { font-size: 1.75rem; font-weight: 700; margin-bottom: 4px; }
.auth-subtitle { color: var(--md-on-surface-variant); font-size: 0.875rem; }
.auth-form { display: flex; flex-direction: column; gap: 16px; }
.auth-link {
  text-align: center; margin-top: 20px;
  font-size: 0.875rem; color: var(--md-on-surface-variant);
}

/* ── Material text field ────────────────────────────── */
.field { position: relative; }
.field input, .field textarea {
  width: 100%; padding: 20px 16px 8px;
  background: var(--md-surface-container-high);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-radius-sm);
  font-family: var(--font); font-size: 1rem;
  color: var(--md-on-surface);
  outline: none; transition: border-color 0.15s;
  resize: vertical;
}
.field input:focus, .field textarea:focus { border-color: var(--md-primary); border-width: 2px; padding: 19px 15px 7px; }
.field label, .field .textarea-label {
  position: absolute; left: 16px; top: 14px;
  font-size: 1rem; color: var(--md-on-surface-variant);
  pointer-events: none; transition: all 0.15s;
  background: transparent;
}
.field input:focus + label,
.field input:not(:placeholder-shown) + label,
.field textarea:focus ~ .textarea-label,
.field textarea:not(:placeholder-shown) ~ .textarea-label {
  top: 4px; font-size: 0.75rem; color: var(--md-primary);
}
.field textarea:focus ~ .textarea-label,
.field textarea:not(:placeholder-shown) ~ .textarea-label {
  background: var(--md-surface-container-high);
  padding: 0 4px; border-radius: 2px;
}

/* ── Captcha section ────────────────────────────────── */
.captcha-section {
  display: flex; flex-direction: column; align-items: center; gap: 12px;
}
.captcha-fallback {
  display: flex; align-items: center; gap: 6px;
  color: var(--md-on-surface-variant); font-size: 0.8125rem;
  cursor: pointer; padding: 8px 12px;
  border-radius: var(--md-radius-sm);
  background: var(--md-surface-container);
  border: 1px solid var(--md-outline-variant);
  transition: background 0.15s;
}
.captcha-fallback:hover { background: var(--md-surface-container-high); }
.captcha-fallback .material-symbols-rounded { font-size: 18px; }

/* ── Wall page ──────────────────────────────────────── */
.wall-page { padding: 24px 16px 64px; }
.wall-container { max-width: 680px; margin: 0 auto; }

/* Profile card */
.profile-card {
  display: flex; align-items: center; gap: 20px;
  background: var(--md-surface-container-lowest);
  border-radius: var(--md-radius-lg); padding: 28px 24px;
  box-shadow: var(--md-shadow); margin-bottom: 20px;
  flex-wrap: wrap;
}
.profile-avatar {
  width: 72px; height: 72px; border-radius: var(--md-radius-full);
  background: var(--md-primary-container);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.profile-avatar .material-symbols-rounded { font-size: 36px; color: var(--md-on-primary-container); }
.profile-info { flex: 1; min-width: 0; }
.profile-name { font-size: 1.5rem; font-weight: 700; line-height: 1.2; }
.profile-handle { font-size: 0.875rem; color: var(--md-on-surface-variant); }
.profile-bio { font-size: 0.875rem; color: var(--md-on-surface-variant); margin-top: 4px; }
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 12px; border-radius: var(--md-radius-full);
  font-size: 0.75rem; font-weight: 600;
}
.badge-admin { background: var(--md-primary-container); color: var(--md-on-primary-container); }
.badge-admin .material-symbols-rounded { font-size: 14px; }

/* Post form */
.post-form-card {
  background: var(--md-surface-container-lowest);
  border-radius: var(--md-radius-lg); padding: 20px;
  box-shadow: var(--md-shadow); margin-bottom: 24px;
}
.post-form-card form { display: flex; gap: 16px; }
.post-form-avatar {
  width: 40px; height: 40px; border-radius: var(--md-radius-full);
  background: var(--md-surface-container-high);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.post-form-avatar .material-symbols-rounded { font-size: 20px; color: var(--md-on-surface-variant); }
.post-form-body { flex: 1; display: flex; flex-direction: column; gap: 12px; }
.post-form-body textarea {
  width: 100%; padding: 12px 16px;
  background: var(--md-surface-container);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-radius-md);
  font-family: var(--font); font-size: 0.9375rem;
  color: var(--md-on-surface); resize: vertical;
  outline: none; transition: border-color 0.15s;
  min-height: 80px;
}
.post-form-body textarea:focus { border-color: var(--md-primary); }
.post-form-actions {
  display: flex; align-items: center; justify-content: space-between;
}
.char-count { font-size: 0.75rem; color: var(--md-on-surface-variant); }

.login-prompt {
  text-align: center; margin-bottom: 24px;
  padding: 24px;
  background: var(--md-surface-container-low);
  border-radius: var(--md-radius-lg);
  border: 1px dashed var(--md-outline-variant);
}

/* Posts */
.posts-list { display: flex; flex-direction: column; gap: 12px; }
.post-card {
  background: var(--md-surface-container-lowest);
  border-radius: var(--md-radius-lg); padding: 20px;
  box-shadow: var(--md-shadow);
  transition: box-shadow 0.15s;
}
.post-card:hover { box-shadow: var(--md-shadow-lg); }
.post-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  margin-bottom: 12px; gap: 12px;
}
.post-author {
  display: flex; align-items: center; gap: 12px;
  text-decoration: none !important; color: inherit;
}
.post-author:hover { opacity: 0.8; }
.post-avatar {
  width: 40px; height: 40px; border-radius: var(--md-radius-full);
  background: var(--md-secondary-container);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.post-avatar .material-symbols-rounded { font-size: 20px; color: var(--md-on-secondary-container); }
.post-author-name { font-weight: 600; font-size: 0.9375rem; display: block; }
.post-author-handle { font-size: 0.8125rem; color: var(--md-on-surface-variant); }
.post-meta { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.post-time { font-size: 0.8125rem; color: var(--md-on-surface-variant); white-space: nowrap; }
.delete-form { display: inline; }
.post-content {
  font-size: 0.9375rem; line-height: 1.6;
  color: var(--md-on-surface);
  word-break: break-word;
}

/* Empty state */
.empty-state {
  text-align: center; padding: 64px 24px;
  color: var(--md-on-surface-variant);
}
.empty-icon { font-size: 64px; opacity: 0.4; display: block; margin-bottom: 16px; }
.empty-hint { font-size: 0.875rem; margin-top: 4px; }

/* Settings */
.settings-card {
  background: var(--md-surface-container-lowest);
  border-radius: var(--md-radius-lg); padding: 32px 24px;
  box-shadow: var(--md-shadow);
}
.settings-title {
  display: flex; align-items: center; gap: 12px;
  font-size: 1.25rem; font-weight: 600; margin-bottom: 24px;
}
.settings-title .material-symbols-rounded { color: var(--md-primary); }
.settings-form { display: flex; flex-direction: column; gap: 16px; }
.settings-form textarea {
  width: 100%; padding: 20px 16px 8px;
  background: var(--md-surface-container-high);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-radius-sm);
  font-family: var(--font); font-size: 1rem;
  color: var(--md-on-surface); resize: vertical;
  outline: none; transition: border-color 0.15s;
  min-height: 80px;
}
.settings-form textarea:focus { border-color: var(--md-primary); border-width: 2px; padding: 19px 15px 7px; }

/* ── Responsive ─────────────────────────────────────── */
@media (max-width: 600px) {
  .topbar-inner { padding: 8px 12px; }
  .profile-card { padding: 20px 16px; gap: 16px; }
  .profile-avatar { width: 56px; height: 56px; }
  .profile-avatar .material-symbols-rounded { font-size: 28px; }
  .profile-name { font-size: 1.25rem; }
  .post-form-card { padding: 16px; }
  .post-card { padding: 16px; }
  .auth-card { padding: 32px 20px; }
  .settings-card { padding: 24px 16px; }
}