/**
 * Страница входа (центрированная карточка).
 * Токены: foundation.css (base/layout/components + theme + a11y).
 */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-primary);
    position: relative;
    overflow: hidden;
    margin: 0;
}

.login-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

.login-bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.012) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.012) 1px, transparent 1px);
    background-size: 60px 60px;
}

.login-wrapper {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 460px;
    padding: 24px;
    animation: loginAppear 0.5s ease forwards;
}

@keyframes loginAppear {
    from {
        opacity: 0;
        transform: translateY(16px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.login-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 24px;
    transition: color 0.2s;
}

.login-back:hover {
    color: var(--color-text-primary);
}

.login-back svg {
    transition: transform 0.2s;
}

.login-back:hover svg {
    transform: translateX(-3px);
}

.login-card {
    background: rgba(26, 26, 26, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 44px 40px 40px;
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(255, 255, 255, 0.03) inset;
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 20%;
    right: 20%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
    border-radius: 2px;
}

.login-header {
    text-align: center;
    margin-bottom: 36px;
}

.login-logo {
    font-size: 34px;
    font-weight: 500;
    color: #fafafa;
    letter-spacing: -0.028em;
    margin-bottom: 8px;
    text-decoration: none;
    font-feature-settings: "kern" 1, "ss01" 1, "ss02" 1, "cv11" 1;
    text-rendering: geometricPrecision;
}

.login-subtitle {
    font-size: 14px;
    color: var(--color-text-muted);
    margin: 0;
}

.login-error {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--color-danger);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    font-size: 14px;
    animation: shakeError 0.4s ease;
}

.login-error-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

@keyframes shakeError {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-8px); }
    40% { transform: translateX(6px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(2px); }
}

.login-form-group {
    margin-bottom: 20px;
}

.login-form-label {
    display: block;
    margin-bottom: 8px;
    color: var(--color-text-secondary);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.login-input-wrapper {
    position: relative;
}

.login-input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
    transition: color 0.2s;
}

.login-input-wrapper:focus-within .login-input-icon {
    color: var(--color-accent);
}

.login-input-wrapper:has(.login-password-toggle) .login-input {
    padding-right: 44px;
}

.login-input {
    width: 100%;
    padding: 14px 16px 14px 44px;
    background: rgba(15, 15, 15, 0.6);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    border-radius: var(--radius-md);
    font-size: 15px;
    font-family: inherit;
    transition: all 0.2s ease;
    box-sizing: border-box;
}

.login-input:focus {
    outline: none;
    border-color: var(--color-accent);
    background: rgba(15, 15, 15, 0.8);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-accent) 12%, transparent);
}

.login-input::placeholder {
    color: var(--color-text-disabled);
}

.login-password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.login-password-toggle:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.login-submit {
    width: 100%;
    padding: 15px;
    background: var(--color-accent);
    color: var(--color-on-accent, #fff);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    transition: all 0.25s ease;
    margin-top: 8px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.login-submit:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px color-mix(in srgb, var(--color-accent) 35%, transparent);
}

.login-submit:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px color-mix(in srgb, var(--color-accent) 25%, transparent);
}

.login-submit svg {
    transition: transform 0.2s;
}

.login-submit:hover svg {
    transform: translateX(3px);
}

.login-footer {
    text-align: center;
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

.login-footer-text {
    font-size: 13px;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.login-footer-text a {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

.login-footer-legal {
    margin-top: 10px;
}

.login-hints {
    display: flex;
    justify-content: center;
    gap: 28px;
    margin-top: 32px;
    flex-wrap: wrap;
}

.login-hint {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--color-text-muted);
    font-weight: 500;
}

.login-hint-icon {
    font-size: 14px;
    line-height: 1;
}

@media (max-width: 520px) {
    .login-wrapper {
        padding: 16px;
    }

    .login-card {
        padding: 32px 24px 28px;
        border-radius: 16px;
    }

    .login-logo {
        font-size: 30px;
    }

    .login-hints {
        gap: 16px;
    }
}