:root {
    --bg: #f3eee7;
    --card: #ffffff;
    --ink: #212127;
    --accent: #12595a;
    --accent-2: #e88930;
    --muted: #6f7079;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    min-height: 100vh;
    font-family: "Segoe UI", Tahoma, sans-serif;
    color: var(--ink);
    background: radial-gradient(circle at 20% 20%, #f9f2dc 0%, var(--bg) 45%, #ece2d6 100%);
    display: grid;
    place-items: center;
}
.card {
    width: min(440px, calc(100vw - 30px));
    background: var(--card);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.12);
}
h1 {
    margin: 0 0 8px;
    font-size: 1.5rem;
}
p {
    margin: 0 0 18px;
    color: var(--muted);
}
label {
    display: block;
    margin: 12px 0 6px;
    font-weight: 600;
}
input {
    width: 100%;
    border: 1px solid #d6d7dc;
    border-radius: 10px;
    padding: 10px 12px;
    font-size: 1rem;
}
button {
    margin-top: 16px;
    width: 100%;
    border: 0;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent), #0c7f81);
    color: white;
    font-weight: 700;
    padding: 12px;
    cursor: pointer;
}
.error {
    color: #9d1f1f;
    margin-top: 8px;
    font-weight: 600;
}