/**
 * ============================================================
 * LOGIN.CSS – ŠTÝLY PRE PRIHLASOVACIU STRÁNKU
 * ============================================================
 * Štýly pre prihlasovací formulár
 * 
 * @version 1.0.0
 * @author EasyWay Team
 * @license MIT
 * ============================================================
 */

/* ============================================================
 * LOGIN KONTAJNER
 * ============================================================ */

.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--spacing-8) var(--spacing-4);
    background:
        radial-gradient(circle at 18% 14%, rgba(29, 110, 216, 0.13), transparent 33%),
        linear-gradient(135deg, var(--color-primary-50) 0%, var(--color-bg-secondary) 100%);
}

/* ============================================================
 * LOGIN KARTA
 * ============================================================ */

.login-card {
    width: 100%;
    max-width: 440px;
    padding: var(--spacing-8);
    background: var(--color-bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl), 0 0 0 1px rgba(29, 110, 216, 0.1);
    border: 1px solid rgba(181, 204, 232, 0.9);
    transition: all var(--transition-base);
}

.login-card:hover {
    box-shadow: var(--shadow-xl), 0 0 0 1px rgba(29, 110, 216, 0.18);
    transform: translateY(-2px);
}

.login-card__header {
    text-align: center;
    margin-bottom: var(--spacing-8);
}

.login-card__logo {
    display: inline-block;
    margin-bottom: var(--spacing-5);
    font-size: 32px;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary-500);
    text-decoration: none;
}

.login-card__title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-3);
}

.login-card__subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin: 0 auto;
    max-width: 30ch;
}

/* ============================================================
 * LOGIN FORMULÁR
 * ============================================================ */

.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-5);
}

.login-form__group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.login-form__label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.login-form__input {
    padding: var(--spacing-3) var(--spacing-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-base);
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    transition: all var(--transition-fast);
    width: 100%;
    line-height: 1.45;
}

.login-form__input:focus {
    outline: none;
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 3px rgba(74, 108, 247, 0.1);
}

.login-form__input--error {
    border-color: var(--color-error);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.login-form__error {
    font-size: var(--font-size-xs);
    color: var(--color-error);
    margin-top: var(--spacing-1);
    line-height: 1.45;
    min-height: 1.1em;
}

/* ============================================================
 * REMEMBER ME
 * ============================================================ */

.login-form__options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    padding: var(--spacing-2) 0;
}

.login-form__remember {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    cursor: pointer;
    line-height: 1.45;
}

.login-form__remember input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--color-primary-500);
}

.login-form__forgot {
    font-size: var(--font-size-sm);
    color: var(--color-primary-500);
    text-decoration: none;
    transition: color var(--transition-fast);
    line-height: 1.45;
}

.login-form__forgot:hover {
    color: var(--color-primary-600);
    text-decoration: underline;
}

/* ============================================================
 * TLAČIDLÁ
 * ============================================================ */

.login-form__submit {
    padding: var(--spacing-3) var(--spacing-6);
    border: none;
    border-radius: var(--radius-base);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: #ffffff;
    background: var(--color-primary-500);
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 100%;
    min-height: 48px;
    position: relative;
}

.login-form__submit:hover:not(:disabled) {
    background: var(--color-primary-600);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.login-form__submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.login-form__submit--loading {
    color: transparent;
}

.login-form__submit--loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: login-spin 0.8s linear infinite;
    transform: translate(-50%, -50%);
}

@keyframes login-spin {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* ============================================================
 * SOCIÁLNE PRIHLASOVANIE
 * ============================================================ */

.login-divider {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    margin: var(--spacing-4) 0;
}

.login-divider::before,
.login-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-border);
}

.login-divider__text {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.login-social {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.login-social__button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-base);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 100%;
    text-decoration: none;
}

.login-social__button:hover {
    background: var(--color-bg-secondary);
    border-color: var(--color-border-hover);
}

.login-social__icon {
    font-size: 20px;
}

/* ============================================================
 * REGISTRAČNÝ ODKAZ
 * ============================================================ */

.login-register {
    text-align: center;
    margin-top: var(--spacing-6);
    padding-top: var(--spacing-5);
    border-top: 1px solid rgba(181, 204, 232, 0.75);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.login-register__link {
    color: var(--color-primary-500);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast);
}

.login-register__link:hover {
    color: var(--color-primary-600);
    text-decoration: underline;
}

/* ============================================================
 * RESPONZÍVNY DIZAJN
 * ============================================================ */

@media (max-width: 768px) {
    .login-card {
        padding: var(--spacing-6);
    }

    .login-card__title {
        font-size: var(--font-size-xl);
    }

    .login-container {
        padding: var(--spacing-6) var(--spacing-4);
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: var(--spacing-4);
        border-radius: var(--radius-lg);
    }
    
    .login-form__options {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* Refined physical authentication form */
.auth-document {
        min-height: 100%;
        background: #f7f9fc;
    }

    .login-container {
        min-height: calc(100vh - 64px);
        padding: 48px 20px;
        background:
            radial-gradient(circle at 18% 5%, rgba(53, 99, 233, 0.08), transparent 28rem),
            linear-gradient(180deg, #f8faff 0%, #ffffff 100%);
    }

    .login-card {
        max-width: 448px;
        padding: 38px;
        border: 1px solid #e1e6ef;
        border-radius: 18px;
        box-shadow: 0 18px 48px rgba(22, 42, 81, 0.1);
    }

    .login-card:hover {
        transform: none;
        box-shadow: 0 18px 48px rgba(22, 42, 81, 0.1);
    }

    .auth-page__eyebrow {
        display: block;
        margin: 0 0 10px;
        color: #3563e9;
        font-size: 11px;
        font-weight: 800;
        letter-spacing: 0.12em;
        text-transform: uppercase;
    }

    .login-card__header {
        margin-bottom: 28px;
    }

    .login-card__logo {
        margin-bottom: 18px;
    }

    .login-card__title {
        margin: 0 0 8px;
        color: #162a51;
        font-size: 30px;
        letter-spacing: -0.04em;
    }

    .login-card__subtitle {
        color: #5b677c;
        font-size: 15px;
    }

    .login-form {
        gap: 18px;
    }

    .login-form__group {
        gap: 7px;
    }

    .login-form__label {
        color: #293752;
        font-size: 13px;
        font-weight: 700;
    }

    .login-form__input {
        min-height: 46px;
        box-sizing: border-box;
        border-color: #cbd3e1;
        border-radius: 9px;
        background: #ffffff;
        color: #162a51;
        font-size: 15px;
    }

    .login-form__input::placeholder {
        color: #8995a9;
    }

    .login-form__input:hover:not(:disabled) {
        border-color: #9ba9bf;
    }

    .login-form__input:focus {
        border-color: #3563e9;
        box-shadow: 0 0 0 3px rgba(53, 99, 233, 0.16);
    }

    .login-form__input--error {
        border-color: #d92d20;
        box-shadow: none;
    }

    .login-form__input--error:focus {
        box-shadow: 0 0 0 3px rgba(217, 45, 32, 0.14);
    }

    .login-form__input:disabled {
        border-color: #dce2ec;
        background: #f5f7fa;
        color: #7c8798;
    }

    .login-form__helper,
    .login-form__error {
        font-size: 12px;
        line-height: 1.45;
    }

    .login-form__options {
        padding: 0;
    }

    .login-form__remember,
    .login-form__forgot {
        font-size: 13px;
    }

    .login-form__forgot,
    .login-register__link {
        color: #2456d6;
        font-weight: 700;
    }

    .login-form__submit {
        min-height: 46px;
        border-radius: 9px;
        background: #3563e9;
        font-weight: 700;
    }

    .login-form__submit:hover:not(:disabled) {
        background: #2852c7;
        transform: translateY(-1px);
        box-shadow: 0 8px 18px rgba(53, 99, 233, 0.22);
    }

    .login-social__button {
        min-height: 44px;
        border-color: #cbd3e1;
        border-radius: 9px;
        background: #ffffff;
    }

    .login-register {
        margin-top: 26px;
        padding-top: 20px;
        border-color: #e5e9f0;
    }

    @media (max-width: 560px) {
        .login-container {
            min-height: 100vh;
            padding: 20px 14px;
            align-items: flex-start;
        }

        .login-card {
            padding: 28px 20px;
        }

        .login-card__title {
            font-size: 26px;
        }
    }

/* ============================================================
 * DARK MODE
 * ============================================================ */

@media (prefers-color-scheme: dark) {
    .login-container {
        background: linear-gradient(135deg, var(--color-primary-900) 0%, var(--color-bg-dark) 100%);
    }

    .login-card {
        background: var(--color-bg-secondary);
        border-color: var(--color-border-dark);
    }

    .login-form__input {
        background: var(--color-bg-tertiary);
        border-color: var(--color-border-dark);
        color: var(--color-text-dark);
    }

    .login-social__button {
        background: var(--color-bg-secondary);
        border-color: var(--color-border-dark);
        color: var(--color-text-dark);
    }

    .login-social__button:hover {
        background: var(--color-bg-tertiary);
    }

    .login-divider::before,
    .login-divider::after {
        background: var(--color-border-dark);
    }
}