:root {
    --bg-page: #151C17;
    --surface: rgba(32, 42, 35, 0.96);
    --text-main: #EEF2EA;
    --primary: #9CAF88;
    --surface-soft: #263129;
    --surface-hover: #2C3A30;
    --text-soft: #B8C2B4;
    --text-muted: #8D978A;
    --primary-dark: #81986F;
    --primary-soft: rgba(156, 175, 136, 0.13);
    --primary-soft-hover: rgba(156, 175, 136, 0.22);
    --error: #D66A6A;
    --error-soft: rgba(214, 106, 106, 0.14);
    --border: rgba(238, 242, 234, 0.11);
    --border-soft: rgba(238, 242, 234, 0.07);
    --button-text: #111611;
    --shadow-soft: 0 16px 34px rgba(0, 0, 0, 0.22);
    --shadow-hover: 0 12px 26px rgba(0, 0, 0, 0.28);
}

html,
body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: Arial, Helvetica, sans-serif;
    background-color: var(--bg-page);
    color: var(--text-main);
}

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px;
    box-sizing: border-box;
    background: radial-gradient(circle at top left, rgba(156, 175, 136, 0.08), transparent 34%), linear-gradient(135deg, #151C17 0%, #192119 48%, #101510 100%);
}

.login-card {
    width: 100%;
    max-width: 410px;
    background-color: var(--surface);
    border-radius: 18px;
    padding: 38px;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--border);
}

.brand-block {
    margin-bottom: 34px;
}

    .brand-block h1 {
        margin: 0;
        color: var(--primary);
        font-size: 34px;
        font-weight: 700;
        letter-spacing: -0.8px;
    }

    .brand-block p {
        margin: 6px 0 0;
        color: var(--text-soft);
        font-size: 14px;
        font-weight: 500;
    }

.alert-error {
    margin-bottom: 20px;
    padding: 12px 14px;
    border-radius: 10px;
    background-color: var(--error-soft);
    color: var(--error);
    border: 1px solid rgba(214, 106, 106, 0.28);
    font-size: 14px;
    font-weight: 600;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

    .form-group label {
        color: var(--primary);
        font-size: 13px;
        font-weight: 700;
        letter-spacing: 0.2px;
    }

    .form-group input {
        width: 100%;
        box-sizing: border-box;
        height: 46px;
        padding: 0 14px;
        border-radius: 10px;
        border: 1px solid var(--border);
        background-color: var(--surface-soft);
        color: var(--text-main);
        font-size: 15px;
        outline: none;
        transition: border-color 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
    }

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

        .form-group input:focus {
            border-color: var(--primary);
            background-color: var(--surface-hover);
            box-shadow: 0 0 0 4px rgba(156, 175, 136, 0.16);
        }

.password-field {
    position: relative;
}

    .password-field input {
        padding-right: 48px;
    }

.password-toggle {
    position: absolute;
    top: 50%;
    right: 12px;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

    .password-toggle:hover {
        color: var(--text-main);
    }

.btn-login {
    height: 48px;
    border: none;
    border-radius: 10px;
    background-color: var(--primary);
    color: var(--button-text);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    margin-top: 6px;
    transition: background-color 0.18s ease, transform 0.12s ease, box-shadow 0.18s ease;
}

    .btn-login:hover {
        background-color: var(--primary-dark);
        box-shadow: var(--shadow-hover);
        transform: translateY(-1px);
    }

    .btn-login:active {
        transform: translateY(0);
        box-shadow: none;
    }