:root {
  --ink: #1f2933;
  --muted: #6b7684;
  --line: #e3e8ee;
  --bg: #f7f5f1;
  --card: #ffffff;
  --accent: #2f6f6a;
  --accent-dark: #245551;
  --shadow: 0 10px 30px rgba(31, 41, 51, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  min-height: 100vh;
}

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

.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

/* Top bar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: 880px;
  margin: 0 auto;
  padding: 18px 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
}

.brand .dot {
  font-size: 1.3rem;
}

.who {
  color: var(--muted);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 12px;
}

.linkbtn {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font: inherit;
  padding: 0;
}

/* Hero */
.hero {
  margin: 8px 0 28px;
}

.hero h1 {
  font-size: 2rem;
  margin: 0 0 6px;
  letter-spacing: -0.01em;
}

.hero p {
  margin: 0;
  color: var(--muted);
}

/* Trip grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 18px;
}

.trip {
  display: block;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.trip:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(31, 41, 51, 0.12);
}

.trip .cover {
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  background: linear-gradient(135deg, #dfeeec, #cfe3df);
}

.trip .body {
  padding: 16px 18px;
}

.trip h3 {
  margin: 0 0 4px;
  font-size: 1.15rem;
}

.trip p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

/* Login card */
.center {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.card {
  width: 100%;
  max-width: 380px;
  background: var(--card);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 28px 26px;
}

.card .logo {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 6px;
}

.card h2 {
  text-align: center;
  margin: 0 0 4px;
}

.card .sub {
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 20px;
}

.field {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 1rem;
  margin-bottom: 12px;
  background: #fbfbfa;
}

.field:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(47, 111, 106, 0.15);
}

.btn {
  width: 100%;
  padding: 12px 14px;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.btn:hover {
  background: var(--accent-dark);
}

.btn:disabled {
  background: #9fb6b3;
  cursor: default;
}

.error {
  color: #b4231f;
  font-size: 0.88rem;
  margin: 0 0 12px;
}

.hint {
  color: var(--muted);
  font-size: 0.78rem;
  margin: 0 0 12px;
}

.showpw {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.85rem;
  color: var(--muted);
  margin: 2px 0 12px;
  cursor: pointer;
  user-select: none;
}

.showpw input {
  width: 15px;
  height: 15px;
  accent-color: var(--accent);
  cursor: pointer;
}

.hidden {
  display: none !important;
}

/* Trip page content */
.back {
  display: inline-block;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.content {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 28px 30px;
}

.content h1 {
  margin-top: 0;
}

.content .lede {
  color: var(--muted);
  font-size: 1.05rem;
}

.loading {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
}