:root {
    /* Палитра лендинга WikiMedicus */
    --bg: #0e3a44;
    --panel: #ffffff;
    --panel-border: #e3eaf0;
    --text: #16222e;
    --muted: #5b6b7a;
    --accent: #1f7a8c;
    --accent-strong: #155e6e;
    --danger: #dc2626;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    color: var(--text);
    background: linear-gradient(120deg, #0e3a44 0%, #155e6e 58%, #1f7a8c 100%);
}

.login-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.login-panel {
    width: min(440px, 100%);
    padding: 36px 32px;
    border-radius: 22px;
    background: var(--panel);
    border: 1px solid var(--panel-border);
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    border-radius: 999px;
    font-weight: 800;
    color: var(--accent);
    background: rgba(31, 122, 140, 0.08);
    border: 1px solid rgba(31, 122, 140, 0.2);
}

h1 {
    margin: 24px 0 10px;
    font-size: 32px;
    letter-spacing: -0.3px;
}

.subtitle {
    margin: 0 0 24px;
    color: var(--muted);
    line-height: 1.5;
}

.login-form {
    display: grid;
    gap: 16px;
}

.login-form label {
    display: grid;
    gap: 8px;
}

.login-form span {
    color: var(--muted);
    font-size: 14px;
    font-weight: 600;
}

.login-form input {
    width: 100%;
    padding: 13px 15px;
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    background: #fbfdfe;
    color: var(--text);
    font-size: 16px;
    outline: none;
}

.login-form input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(31, 122, 140, 0.14);
    background: #fff;
}

#loginBtn {
    margin-top: 8px;
    border: none;
    border-radius: 12px;
    padding: 14px 18px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    color: #fff;
    background: var(--accent);
    transition: background 0.2s;
}

#loginBtn:hover {
    background: var(--accent-strong);
}

#loginBtn:disabled {
    opacity: 0.7;
    cursor: wait;
}

.error-box {
    margin-top: 18px;
    padding: 12px 14px;
    border-radius: 12px;
    color: #b91c1c;
    background: #fef2f2;
    border: 1px solid #fecaca;
}

.hint {
    margin-top: 18px;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.5;
}

.hint code {
    color: var(--accent);
    background: rgba(31, 122, 140, 0.08);
    padding: 1px 6px;
    border-radius: 5px;
}

@media (max-width: 640px) {
    .login-panel {
        padding: 24px 20px;
    }

    h1 {
        font-size: 28px;
    }
}