:root {
  --color-bg: #F2F3F5;
  --color-surface: #FFFFFF;
  --color-red: #D6362B;
  --color-red-dark: #B22A21;
  --color-blue: #1259C3;
  --color-blue-dark: #0E479A;
  --color-text: #1B1C1E;
  --color-text-muted: #6B7076;
  --color-border: #E7E8EB;
  --color-green: #1E7B34;
  --color-green-bg: #E6F4EA;
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-pill: 999px;
  --shadow-card: 0 12px 30px rgba(27, 28, 30, 0.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: 'Noto Sans Thai', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

#app { min-height: 100vh; }

body:has(.hero) {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}
#app:has(> .hero) { min-height: auto; width: 100%; max-width: 480px; }

.hero {
  display: flex;
  flex-direction: column;
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  background: linear-gradient(160deg, var(--color-red) 0%, var(--color-red-dark) 38%, var(--color-blue-dark) 68%, var(--color-blue) 100%);
}
.hero-top { padding: 36px 26px 14px; color: #FFFFFF; }
.logo-circle {
  width: 48px; height: 48px; border-radius: var(--radius-pill);
  background: rgba(255,255,255,0.18);
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 18px; margin-bottom: 12px;
}
.hero-greeting { font-size: 22px; font-weight: 900; margin: 0 0 4px; }
.hero-sub { font-size: 13px; font-weight: 400; opacity: 0.85; margin: 0; }

.sheet-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  padding: 22px 22px 26px;
  box-shadow: var(--shadow-card);
}

.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12px; font-weight: 700; color: var(--color-text-muted); margin-bottom: 6px; }
.field input, .field textarea {
  width: 100%;
  padding: 13px 18px;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--color-border);
  background: var(--color-bg);
  font-size: 15px;
  font-family: inherit;
  color: var(--color-text);
  outline: none;
  transition: border-color 0.15s ease;
}
.field textarea { border-radius: var(--radius-md); resize: vertical; min-height: 70px; }
.field input:focus, .field textarea:focus { border-color: var(--color-blue); }
.field-hint { font-size: 12px; color: var(--color-text-muted); margin-top: 6px; }

.btn-primary {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-red) 0%, var(--color-blue) 100%);
  color: #FFFFFF;
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  min-height: 48px;
}
.btn-primary:active { opacity: 0.85; }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-secondary {
  width: 100%;
  padding: 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--color-text);
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  min-height: 48px;
}

.btn-danger-outline {
  width: 100%;
  padding: 12px;
  border: 1.5px solid var(--color-red-dark);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--color-red-dark);
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  min-height: 44px;
}

.error-box {
  display: none;
  background: #FDECEA;
  color: var(--color-red-dark);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 16px;
}
.success-box {
  display: none;
  background: var(--color-green-bg);
  color: var(--color-green);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 16px;
}

.footnote { text-align: center; font-size: 12px; color: var(--color-text-muted); margin-top: 22px; }

.page-wrap { max-width: 560px; margin: 0 auto; padding: 28px 20px 40px; }

.top-bar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; }
.top-bar-title { font-size: 20px; font-weight: 900; }
.top-bar-sub { font-size: 12px; color: var(--color-text-muted); margin-top: 2px; }

.nav-tab-bar { display: flex; gap: 8px; flex-wrap: wrap; margin: 14px 0 20px; }
.nav-tab-btn {
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}
.nav-tab-btn.active { background: var(--color-red-dark); border-color: var(--color-red-dark); color: #fff; }

.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
  margin-bottom: 16px;
}
.card h2 { margin: 0 0 6px; font-size: 18px; font-weight: 900; }
.card p { margin: 0; color: var(--color-text-muted); font-size: 14px; line-height: 1.6; }

.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; }
.stat-card { padding: 18px; margin-bottom: 0; }
.stat-label { font-size: 12px; color: var(--color-text-muted); margin: 0 0 4px; }
.stat-num { font-size: 26px; font-weight: 900; }

.ysg-select {
  width: 100%;
  padding: 13px 42px 13px 18px;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--color-border);
  background-color: var(--color-bg);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 20 20'%3E%3Cpath d='M5 8l5 5 5-5' fill='none' stroke='%236B7076' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  font-family: inherit;
  font-size: 15px;
  color: var(--color-text);
  outline: none;
  min-height: 48px;
  cursor: pointer;
  transition: border-color 0.15s ease;
}
.ysg-select:hover, .ysg-select:focus { border-color: var(--color-blue); }

.checkbox-row { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; font-size: 14px; font-weight: 600; }
.checkbox-row input { width: 20px; height: 20px; }

.fuel-fields-box {
  border: 1.5px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px;
  margin-bottom: 14px;
  display: none;
}
.fuel-fields-box.open { display: block; }

/* รายการรถ / บัญชีผู้ใช้งาน แบบแถวกดขยาย */
.item-row-box { border: 1.5px solid var(--color-border); border-radius: var(--radius-md); margin-bottom: 8px; overflow: hidden; }
.item-row {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  width: 100%; min-height: 52px; padding: 12px 14px;
  border: none; background: none; font-family: inherit; text-align: left; cursor: pointer;
}
.item-row-main { display: flex; flex-direction: column; gap: 2px; min-width: 0; flex: 1; }
.item-row-title { font-size: 14px; font-weight: 700; }
.item-row-sub { font-size: 12px; color: var(--color-text-muted); }
.item-row-chevron { font-size: 12px; color: var(--color-text-muted); transition: transform 0.15s ease; flex-shrink: 0; }
.item-row[aria-expanded="true"] .item-row-chevron { transform: rotate(180deg); }
.item-row-detail { padding: 0 14px 14px; border-top: 1px solid var(--color-border); font-size: 13px; }
.item-row-detail .detail-line { margin-top: 8px; color: var(--color-text-muted); }
.item-row-actions { display: flex; gap: 8px; margin-top: 12px; }
.item-row-actions button { flex: 1; padding: 10px 12px; font-size: 13px; min-height: 44px; }

.status-pill { display: inline-block; padding: 4px 10px; border-radius: var(--radius-pill); font-size: 11px; font-weight: 700; white-space: nowrap; }
.status-pill.ok { background: var(--color-green-bg); color: var(--color-green); }
.status-pill.due { background: #FDECEA; color: var(--color-red-dark); }
.status-pill.neutral { background: #F1F1F2; color: var(--color-text-muted); }

.mini-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.mini-table th, .mini-table td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--color-border); }
.mini-table-wrap { overflow-x: auto; }

.alert-card { border-left: 4px solid var(--color-red-dark); background: #FDECEA; border-radius: var(--radius-md); padding: 14px 16px; margin-bottom: 10px; }
.alert-card-title { font-weight: 800; font-size: 14px; margin-bottom: 4px; }
.alert-card-sub { font-size: 12px; color: var(--color-text-muted); }

.empty-state { text-align: center; padding: 30px 10px; color: var(--color-text-muted); font-size: 14px; }