:root {
    color-scheme: light;
    --bg: #f3f5f1;
    --panel: #ffffff;
    --text: #1b1f1d;
    --muted: #69736d;
    --line: #d9ded7;
    --primary: #176b5b;
    --primary-dark: #0f4f43;
    --danger: #a33a32;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
    font-family: Arial, Helvetica, sans-serif;
}

.auth-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.auth-panel {
    width: min(100%, 420px);
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 28px;
    box-shadow: 0 18px 45px rgba(24, 34, 29, 0.08);
}

.brand-block {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 28px;
}

.brand-mark {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    background: #dfeae3;
    color: var(--primary-dark);
    font-weight: 700;
}

.eyebrow {
    margin: 0 0 4px;
    color: var(--muted);
    font-size: 12px;
    text-transform: uppercase;
}

h1 {
    margin: 0;
    font-size: 24px;
    line-height: 1.2;
}

.auth-form {
    display: grid;
    gap: 10px;
}

label {
    color: var(--muted);
    font-size: 14px;
    font-weight: 700;
}

input {
    width: 100%;
    min-height: 44px;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 10px 12px;
    color: var(--text);
    font-size: 15px;
}

input:focus {
    outline: 3px solid rgba(23, 107, 91, 0.18);
    border-color: var(--primary);
}

button {
    min-height: 44px;
    margin-top: 8px;
    border: 0;
    border-radius: 6px;
    background: var(--primary);
    color: #ffffff;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
}

button:hover {
    background: var(--primary-dark);
}

button:disabled {
    cursor: wait;
    opacity: 0.72;
}

.text-link {
    color: var(--primary-dark);
    font-size: 14px;
    text-align: center;
    text-decoration: none;
}

.text-link:hover {
    text-decoration: underline;
}

.form-message {
    min-height: 20px;
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 14px;
}

.form-message.error {
    color: var(--danger);
}

.form-message.success {
    color: var(--primary-dark);
}