@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap");

:root {
    --bg-base: #09111d;
    --bg-accent: #13233f;
    --panel: rgba(16, 28, 47, 0.82);
    --panel-border: rgba(111, 168, 255, 0.2);
    --text-main: #f3f7ff;
    --text-muted: #9ab0d1;
    --primary: #4aa2fc;
    --primary-hover: #2e89e8;
    --danger: #ff6666;
    --success: #6fe19d;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Inter", sans-serif;
    background:
        radial-gradient(circle at top left, rgba(74, 162, 252, 0.18), transparent 28%),
        radial-gradient(circle at bottom right, rgba(53, 97, 178, 0.14), transparent 32%),
        linear-gradient(160deg, var(--bg-base), #04070d 72%);
    color: var(--text-main);
}

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

.login-card {
    width: min(100%, 420px);
    padding: 32px;
    border-radius: 24px;
    background: var(--panel);
    border: 1px solid var(--panel-border);
    box-shadow: 0 28px 90px rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(22px);
}

.eyebrow {
    margin: 0 0 8px;
    color: var(--primary);
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.login-header h1 {
    margin: 0;
    font-size: 2.2rem;
}

.subtitle {
    margin: 12px 0 0;
    line-height: 1.6;
    color: var(--text-muted);
}

.login-form {
    margin-top: 28px;
    display: grid;
    gap: 14px;
}

.login-form label {
    font-weight: 600;
}

.login-form input {
    width: 100%;
    padding: 15px 16px;
    border-radius: 14px;
    border: 1px solid rgba(154, 176, 209, 0.2);
    background: rgba(7, 15, 28, 0.7);
    color: var(--text-main);
    font-size: 1rem;
}

.login-form input:focus {
    outline: 2px solid rgba(74, 162, 252, 0.35);
    border-color: var(--primary);
}

.login-form button {
    margin-top: 8px;
    border: 0;
    border-radius: 14px;
    padding: 15px 16px;
    font-weight: 700;
    font-size: 1rem;
    background: linear-gradient(135deg, var(--primary), #357eff);
    color: #fff;
    cursor: pointer;
}

.login-form button:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--primary-hover), #2d70ea);
}

.login-form button:disabled {
    opacity: 0.65;
    cursor: wait;
}

.status {
    min-height: 22px;
    margin: 0;
    color: var(--text-muted);
}

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

.status.success {
    color: var(--success);
}

.instruction-box {
    margin-top: 24px;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(154, 176, 209, 0.18);
}

.instruction-box summary {
    cursor: pointer;
    padding: 14px 16px;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.04);
}

.instruction-content {
    padding: 16px;
    color: var(--text-muted);
    line-height: 1.6;
}