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

:root {
  --bg: #f7f1e8;
  --bg-soft: #efe5d3;
  --card: #ffffff;
  --brown: #6b4f32;
  --brown-dark: #3d2f20;
  --brown-soft: #8b6f47;
  --sand: #c9a76c;
  --accent: #b8854a;
  --green: #4a7c4e;
  --red: #b54a3a;
  --gray: #8a7e6e;
  --gray-light: #d9d2c4;
  --shadow: 0 2px 8px rgba(61, 47, 32, 0.08);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--brown-dark);
  min-height: 100vh;
  line-height: 1.5;
}

.screen { min-height: 100vh; }
.hidden { display: none !important; }

/* ============ Login ============ */
#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-box {
  background: var(--card);
  border-radius: 16px;
  padding: 40px 32px;
  box-shadow: var(--shadow);
  width: 100%;
  max-width: 380px;
  text-align: center;
}

.login-box h1 {
  font-size: 22px;
  color: var(--brown);
  margin-bottom: 8px;
}

.login-box p { color: var(--gray); margin-bottom: 24px; font-size: 14px; }

.login-box input {
  width: 100%;
  padding: 14px;
  border: 1.5px solid var(--gray-light);
  border-radius: 10px;
  font-size: 16px;
  margin-bottom: 12px;
  background: var(--bg);
}

.login-box input:focus {
  outline: none;
  border-color: var(--sand);
}

.login-box button {
  width: 100%;
  padding: 14px;
  background: var(--brown);
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
}

.login-box button:hover { background: var(--brown-dark); }

.error { color: var(--red); margin-top: 12px; font-size: 14px; min-height: 20px; }

/* ============ Header ============ */
header {
  background: var(--card);
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 10;
}

header h1 { font-size: 18px; color: var(--brown); font-weight: 600; }

.actions { display: flex; gap: 8px; align-items: center; }

.btn-secondary {
  padding: 8px 14px;
  background: var(--bg-soft);
  border: none;
  border-radius: 8px;
  color: var(--brown);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
}

.btn-secondary:hover { background: var(--gray-light); }

.btn-text {
  background: none;
  border: none;
  color: var(--gray);
  font-size: 13px;
  cursor: pointer;
  padding: 4px;
}

/* ============ Tabs ============ */
.tabs {
  background: var(--card);
  display: flex;
  overflow-x: auto;
  padding: 0 16px;
  border-bottom: 1px solid var(--gray-light);
  position: sticky;
  top: 60px;
  z-index: 9;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }

.tab {
  padding: 12px 16px;
  background: none;
  border: none;
  font-size: 14px;
  color: var(--gray);
  cursor: pointer;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  display: flex;
  align-items: center;
  gap: 8px;
}

.tab.active {
  color: var(--brown);
  border-bottom-color: var(--sand);
  font-weight: 600;
}

.badge {
  background: var(--gray-light);
  color: var(--brown-dark);
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.tab.active .badge {
  background: var(--sand);
  color: white;
}

/* ============ Reviews list ============ */
main {
  max-width: 800px;
  margin: 0 auto;
  padding: 16px;
}

.loading, .empty {
  text-align: center;
  color: var(--gray);
  padding: 40px 16px;
}

.review-card {
  background: var(--card);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: var(--shadow);
}

.review-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gray-light);
  flex-shrink: 0;
  object-fit: cover;
}

.review-meta { flex: 1; min-width: 0; }
.review-meta .name { font-weight: 600; color: var(--brown-dark); font-size: 15px; }
.review-meta .date { font-size: 12px; color: var(--gray); }

.stars { color: var(--sand); font-size: 16px; letter-spacing: 1px; }
.stars .empty-star { color: var(--gray-light); }

.review-comment {
  background: var(--bg);
  padding: 12px;
  border-radius: 10px;
  font-size: 14px;
  margin-bottom: 12px;
  white-space: pre-wrap;
  color: var(--brown-dark);
}

.review-comment.empty {
  font-style: italic;
  color: var(--gray);
  text-align: left;
  padding: 12px;
}

.ai-section {
  background: linear-gradient(135deg, #fbf6ec 0%, #f3e8d2 100%);
  border-left: 3px solid var(--sand);
  padding: 12px;
  border-radius: 10px;
  margin-bottom: 12px;
}

.ai-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--brown-soft);
  margin-bottom: 6px;
  font-weight: 600;
}

.ai-textarea {
  width: 100%;
  min-height: 80px;
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: 14px;
  color: var(--brown-dark);
  resize: vertical;
  outline: none;
  padding: 0;
  line-height: 1.5;
}

.existing-reply {
  background: var(--bg-soft);
  padding: 12px;
  border-radius: 10px;
  font-size: 14px;
  margin-bottom: 12px;
  white-space: pre-wrap;
}

.existing-reply-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gray);
  margin-bottom: 4px;
  font-weight: 600;
}

.btn-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.btn {
  padding: 10px 14px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-primary { background: var(--brown); color: white; flex: 1; min-width: 140px; }
.btn-primary:hover { background: var(--brown-dark); }
.btn-primary:disabled { background: var(--gray-light); cursor: not-allowed; }

.btn-ghost { background: transparent; color: var(--gray); border: 1px solid var(--gray-light); }
.btn-ghost:hover { background: var(--bg-soft); }

.btn-danger-ghost { background: transparent; color: var(--red); border: 1px solid var(--gray-light); }
.btn-danger-ghost:hover { background: #fbe9e6; }

/* ============ Toast ============ */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--brown-dark);
  color: white;
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 14px;
  z-index: 100;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  max-width: 90vw;
}

.toast.error { background: var(--red); }
.toast.success { background: var(--green); }

/* ============ Mobile ============ */
@media (max-width: 600px) {
  header { padding: 12px 16px; }
  header h1 { font-size: 16px; }
  .btn-row { flex-direction: column; }
  .btn-primary { width: 100%; }
}