/* ==========================================================================
   Login Page — Swiss Industrial Aesthetic
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=Space+Mono:wght@400;700&display=swap');

:root {
    --color-bg: #f0f1f5;
    --color-surface: #ffffff;
    --color-surface-raised: #f7f7f9;
    --color-border: #e0e1e6;
    --color-border-focus: #6366f1;
    --color-accent: #6366f1;
    --color-accent-glow: rgba(99, 102, 241, 0.15);
    --color-accent-hover: #4f46e5;
    --color-text: #1a1a23;
    --color-text-muted: #8b8d97;
    --color-text-label: #5a5c66;
    --color-error: #dc2626;
    --color-success: #16a34a;
    --font-body: 'DM Sans', system-ui, sans-serif;
    --font-mono: 'Space Mono', monospace;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.login-page {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

/* Background grid pattern */
body.login-page::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(99, 102, 241, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

/* Subtle radial glow */
body.login-page::after {
    content: '';
    position: fixed;
    top: 30%;
    left: 50%;
    width: 800px;
    height: 800px;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(99, 102, 241, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

/* ---- Login Container ---- */
.login-wrapper {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
    padding: 0 24px;
    animation: loginFadeIn 0.6s ease-out;
}

@keyframes loginFadeIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---- Brand ---- */
.login-brand {
    text-align: center;
    margin-bottom: 40px;
}

.login-brand-logo {
    width: 48px;
    height: 48px;
    background: var(--color-accent);
    border-radius: var(--radius-md);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    box-shadow: 0 0 30px var(--color-accent-glow);
}

.login-brand-logo img {
    width: 24px;
    height: auto;
    filter: brightness(0) invert(1);
}

.login-brand h1 {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 6px;
}

.login-brand p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-weight: 400;
}

/* ---- Card ---- */
.login-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    box-shadow:
        0 4px 24px rgba(0, 0, 0, 0.06),
        0 1px 3px rgba(0, 0, 0, 0.04);
}

/* ---- Form ---- */
.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-label);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-family: var(--font-mono);
}

.form-group input {
    width: 100%;
    padding: 12px 14px;
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    outline: none;
}

.form-group input::placeholder {
    color: var(--color-text-muted);
}

.form-group input:focus {
    border-color: var(--color-border-focus);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-group input.is-invalid {
    border-color: var(--color-error);
}

.form-error {
    font-size: 0.8125rem;
    color: var(--color-error);
    font-weight: 400;
    margin-top: 2px;
}

.form-row-split {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.form-remember {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.8125rem;
    color: var(--color-text-label);
}

.form-remember input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--color-accent);
    cursor: pointer;
}

.form-forgot {
    font-size: 0.8125rem;
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.15s ease;
}

.form-forgot:hover {
    color: var(--color-accent-hover);
}

/* ---- Submit Button ---- */
.btn-login {
    width: 100%;
    padding: 13px 20px;
    background: var(--color-accent);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.1s ease, box-shadow 0.2s ease;
    letter-spacing: -0.01em;
    margin-top: 4px;
}

.btn-login:hover {
    background: var(--color-accent-hover);
    box-shadow: 0 4px 20px var(--color-accent-glow);
}

.btn-login:active {
    transform: scale(0.985);
}

/* ---- Alert ---- */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-weight: 500;
    margin-bottom: 4px;
}

.alert-danger {
    background: rgba(248, 113, 113, 0.1);
    border: 1px solid rgba(248, 113, 113, 0.2);
    color: var(--color-error);
}

.alert-success {
    background: rgba(52, 211, 153, 0.1);
    border: 1px solid rgba(52, 211, 153, 0.2);
    color: var(--color-success);
}

/* ---- Footer ---- */
.login-footer {
    text-align: center;
    margin-top: 28px;
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.login-footer a {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
}

.login-footer a:hover {
    color: var(--color-accent-hover);
}

/* ---- Corner decorators ---- */
.login-decorator {
    position: fixed;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--color-text-muted);
    opacity: 0.3;
    pointer-events: none;
}

.login-decorator--tl {
    top: 24px;
    left: 24px;
}

.login-decorator--br {
    bottom: 24px;
    right: 24px;
}

/* ---- Responsive ---- */
@media (max-width: 480px) {
    .login-card {
        padding: 28px 22px;
    }

    .login-brand {
        margin-bottom: 32px;
    }
}