*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: radial-gradient(circle at top, #111827, #020617 55%);
    color: #e5e7eb;
}

.page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.auth-card {
    width: 100%;
    max-width: 380px;
    background: #020617;
    border-radius: 24px;
    padding: 1.8rem 1.6rem;
    border: 1px solid #1f2937;
    box-shadow: 0 20px 45px rgba(15, 23, 42, 0.9);
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.logo-icon {
    font-size: 1.4rem;
}

.logo-text {
    font-weight: 700;
    text-transform: lowercase;
    letter-spacing: 0.08em;
}

h1 {
    font-size: 1.5rem;
    margin-bottom: 0.4rem;
}

.subtitle {
    font-size: 0.85rem;
    color: #9ca3af;
    margin-bottom: 1.4rem;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.auth-form label {
    font-size: 0.8rem;
    color: #9ca3af;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.auth-form label.remember-me {
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
}

.auth-form label.remember-me input {
    width: 16px;
    height: 16px;
}

.auth-form input {
    border-radius: 999px;
    border: 1px solid #1f2937;
    background: #020617;
    color: #e5e7eb;
    padding: 0.55rem 0.9rem;
    font-size: 0.9rem;
    outline: none;
}

.auth-form input:focus {
    border-color: #4f46e5;
    box-shadow: 0 0 0 1px rgba(79, 70, 229, 0.4);
}

.validation-summary {
    border-radius: 14px;
    border: 1px solid rgba(248, 113, 113, 0.4);
    background: rgba(127, 29, 29, 0.2);
    padding: 0.6rem 0.75rem;
    font-size: 0.8rem;
    margin-bottom: 0.8rem;
}

.error-text {
    color: #fca5a5;
}

.notice {
    border-radius: 14px;
    border: 1px solid #1f2937;
    background: #0b1120;
    padding: 0.6rem 0.75rem;
    font-size: 0.8rem;
    margin-bottom: 0.8rem;
}

.notice.success {
    border-color: rgba(34, 197, 94, 0.45);
    color: #bbf7d0;
}

.notice.info {
    color: #c7d2fe;
}

/* Buton */
.btn {
    margin-top: 0.4rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    padding: 0.65rem 1.4rem;
    font-size: 0.9rem;
    border: none;
    cursor: pointer;
    font-weight: 500;
}

.btn.primary {
    background: linear-gradient(135deg, #4f46e5, #a855f7);
    color: #f9fafb;
    box-shadow: 0 14px 30px rgba(55, 65, 81, 0.9);
}

.btn.primary:hover {
    opacity: 0.95;
}

.link {
    color: #a855f7;
    text-decoration: none;
    font-size: 0.8rem;
}

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

.small {
    margin-top: 0.35rem;
    align-self: flex-end;
}

.switch,
.role-switch {
    margin-top: 1rem;
    font-size: 0.8rem;
    color: #9ca3af;
}

.role-switch {
    margin-top: 0.4rem;
    border-top: 1px solid #111827;
    padding-top: 0.6rem;
}