:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #16181d;
  --muted: #6b7280;
  --accent: #2f6fed;
  --accent-2: #1f53c2;
  --border: #e5e7eb;
  --slot-bg: #f1f4fb;
  --slot-bg-hover: #e3ebfb;
  --disabled: #d4d8df;
  --error: #d33;
  --ok: #16a34a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 24px 12px;
}

.card {
  width: 100%;
  max-width: 560px;
  background: var(--card);
  border-radius: 16px;
  box-shadow: 0 6px 24px rgba(0,0,0,0.06);
  padding: 28px 28px 32px;
}

.head {
  display: flex;
  gap: 14px;
  align-items: center;
  border-bottom: 1px solid var(--border);
  padding-bottom: 20px;
  margin-bottom: 22px;
}

.avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 20px;
}

h1 { margin: 0; font-size: 18px; }
h2 { font-size: 15px; font-weight: 600; margin: 0 0 12px; }
.subtitle, .muted { color: var(--muted); margin: 2px 0 0; font-size: 13px; }

.step { margin-bottom: 22px; }
.step.hidden { display: none; }

.dates {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 8px;
}

.date-btn {
  background: var(--slot-bg);
  border: 1px solid transparent;
  padding: 10px;
  border-radius: 10px;
  cursor: pointer;
  text-align: center;
  font-size: 14px;
  transition: all .15s;
}
.date-btn:hover { background: var(--slot-bg-hover); }
.date-btn.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent-2);
}

.slots {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(78px, 1fr));
  gap: 8px;
}

.slot-btn {
  background: var(--slot-bg);
  border: 1px solid transparent;
  padding: 10px 0;
  border-radius: 10px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: all .15s;
}
.slot-btn:hover { background: var(--slot-bg-hover); }
.slot-btn.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent-2);
}
.slot-btn.disabled {
  background: transparent;
  color: var(--disabled);
  cursor: not-allowed;
  text-decoration: line-through;
}

form {
  display: flex; flex-direction: column; gap: 12px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}

input {
  font: inherit;
  font-size: 15px;
  color: var(--text);
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  outline: none;
  transition: border-color .15s;
}
input:focus { border-color: var(--accent); }

button[type=submit] {
  margin-top: 6px;
  padding: 12px;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: white;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s;
}
button[type=submit]:hover { background: var(--accent-2); }
button[type=submit]:disabled { background: var(--disabled); cursor: wait; }

.error { color: var(--error); font-size: 13px; min-height: 16px; margin: 0; }

.done {
  text-align: center;
  padding: 12px 0 4px;
}
.check {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--ok);
  color: white;
  font-size: 32px;
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 12px;
}
.check.cancel { background: var(--error); font-size: 36px; }

.manage {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}
.manage h2 { margin-top: 0; }
.manage-actions {
  display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap;
}
.manage-actions button {
  flex: 1;
  min-width: 140px;
  padding: 11px;
  border-radius: 8px;
  border: none;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.manage-actions .secondary {
  background: var(--accent);
  color: white;
}
.manage-actions .secondary:hover { background: var(--accent-2); }
.manage-actions .danger {
  background: white;
  color: var(--error);
  border: 1px solid var(--error);
}
.manage-actions .danger:hover { background: #fdecec; }