/* ── Layout ─────────────────────────────────────────────── */

.login-root {
    --bg: #0a0a0b;
    --bg-elevated: #101012;
    --surface: #141416;
    --surface-muted: #18181b;
    --surface-hover: #1c1c1f;
    --text: #e4e4e7;
    --text-strong: #fafafa;
    --text-muted: #71717a;
    --accent: #2dd4bf;
    --accent-hover: #5eead4;
    --accent-solid: #14b8a6;
    --accent-solid-hover: #0d9488;
    --accent-subtle: rgba(45, 212, 191, 0.14);
    --border: #27272a;
    --border-muted: #1f1f23;
    --border-focus: #2dd4bf;
    --error: #f87171;
    --error-bg: rgba(248, 113, 113, 0.12);
    --error-border: rgba(248, 113, 113, 0.38);
    --header-bg: rgba(10, 10, 11, 0.94);
    --button-text: #ffffff;
    --shadow-card: 0 24px 48px -28px rgba(0, 0, 0, 0.6);
    position: fixed;
    inset: 0;
    overflow: auto;
    background: var(--bg);
    color: var(--text);
    font-family: "Fira Code", monospace;
    -webkit-font-smoothing: auto;

    min-height: 100vh;
    display: grid;
    place-items: center;
}

.login-main {
    display: grid;
    place-items: center;
    padding: 2rem 1.25rem;
}

/* ── Card ────────────────────────────────────────────────── */

.login-card {
    width: min(400px, 100vw - 2.5rem);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    box-shadow: var(--shadow-card);
    padding: 2.5rem 2.25rem;
    animation: fade-up 220ms ease both;
}

/* ── Header ─────────────────────────────────────────────── */

.login-header {
    margin-bottom: 2rem;
}

.login-system-label {
    display: block;
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.login-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-strong);
    line-height: 1.3;
    margin-bottom: 0.3rem;
}

/* ── Form ────────────────────────────────────────────────── */

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.field-label {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.field-input {
    font-family: "Fira Code", monospace;
    font-size: 0.9rem;
    color: var(--text);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.65rem 0.85rem;
    outline: none;
    cursor: text;
    -webkit-user-select: text;
    user-select: text;
    transition:
        border-color 120ms ease,
        box-shadow 120ms ease;
    width: 100%;
}

.field-input::placeholder {
    color: var(--text-muted);
    opacity: 0.78;
}

.field-input:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-subtle);
}

/* ── Submit ─────────────────────────────────────────────── */

.login-submit {
    font-family: "Fira Code", monospace;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--button-text);
    background-color: var(--accent-solid);
    border: 1px solid var(--accent-solid);
    border-radius: 4px;
    padding: 0.75rem 1rem;
    width: 100%;
    cursor: pointer;
    margin-top: 0.5rem;
    transition:
        background-color 120ms ease,
        transform 100ms ease;
}

.login-submit:hover {
    background-color: var(--accent-solid-hover);
}

.login-submit:active {
    transform: scale(0.99);
}

.login-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* ── Error message ──────────────────────────────────────── */

.login-error {
    font-size: 0.8rem;
    color: var(--error);
    background: var(--error-bg);
    border: 1px solid var(--error-border);
    border-radius: 4px;
    padding: 0.6rem 0.85rem;
    margin-top: -0.25rem;
}

/* ── Footer ─────────────────────────────────────────────── */

.login-footer {
    margin-top: 1.75rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.login-footer-text {
    font-size: 0.72rem;
    color: var(--text-muted);
}

/* ── Animation ──────────────────────────────────────────── */

@keyframes fade-up {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}