/* ========================================
   Authentication Modal
   ======================================== */

.auth-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(15px);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
}

.auth-modal.active {
    display: flex;
}

.auth-container {
    position: relative;
    max-width: 500px;
    width: 100%;
    background: linear-gradient(135deg, var(--gray-dark) 0%, #1a1a1a 100%);
    border: 3px solid var(--green-primary);
    border-radius: 20px;
    padding: var(--space-xxl);
    box-shadow: var(--shadow-green), 0 0 50px rgba(90, 143, 58, 0.3);
    animation: modalEnter 0.4s ease-out;
}

@keyframes modalEnter {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.auth-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--green-primary);
    background: transparent;
    color: var(--green-light);
    font-size: 1.5rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-close:hover {
    background: var(--green-primary);
    color: var(--white-pure);
    transform: rotate(90deg);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.auth-logo {
    font-size: 3rem;
    margin-bottom: var(--space-sm);
    animation: logoFloat 3s ease-in-out infinite;
}

@keyframes logoFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.auth-title {
    font-family: var(--font-elegant);
    font-size: 2rem;
    font-weight: 700;
    color: var(--white-pure);
    margin: 0 0 var(--space-xs) 0;
}

.auth-subtitle {
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--white-muted);
    font-style: italic;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.form-label {
    font-family: var(--font-elegant);
    font-size: 0.95rem;
    color: var(--green-light);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.form-input {
    padding: 14px 18px;
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid var(--gray-medium);
    border-radius: 10px;
    color: var(--white-pure);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all var(--transition-normal);
}

.form-input:focus {
    outline: none;
    border-color: var(--green-primary);
    background: rgba(58, 107, 31, 0.1);
    box-shadow: 0 0 20px rgba(58, 107, 31, 0.2);
}

.form-input::placeholder {
    color: var(--gray-lighter);
}

.form-remember {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.form-checkbox {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--green-primary);
}

.form-checkbox-label {
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--white-muted);
    cursor: pointer;
}

.form-submit {
    padding: 16px;
    background: linear-gradient(135deg, var(--green-dark), var(--green-primary));
    border: 2px solid var(--green-light);
    border-radius: 30px;
    color: var(--white-pure);
    font-family: var(--font-elegant);
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-green);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.form-submit:hover {
    box-shadow: 0 0 40px rgba(90, 143, 58, 0.6);
    transform: translateY(-2px);
}

.form-submit:active {
    transform: translateY(0);
}

.form-error {
    padding: var(--space-sm) var(--space-md);
    background: rgba(139, 0, 0, 0.2);
    border: 2px solid #8b0000;
    border-radius: 8px;
    color: #ff6b6b;
    font-family: var(--font-body);
    font-size: 0.9rem;
    display: none;
}

.form-error.active {
    display: block;
}

.auth-footer {
    margin-top: var(--space-lg);
    text-align: center;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--gray-medium);
}

.auth-footer-text {
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--gray-lighter);
}

.auth-link {
    color: var(--green-light);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.auth-link:hover {
    color: var(--green-accent);
}

/* Loading state */
.form-submit.loading {
    pointer-events: none;
    opacity: 0.7;
}

.form-submit.loading::after {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid var(--white-pure);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Auth divider */
.auth-divider {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin: var(--space-lg) 0;
}

.divider-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gray-medium), transparent);
}

.divider-text {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--gray-lighter);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Switch button */
.auth-switch-btn {
    width: 100%;
    padding: 14px;
    background: rgba(58, 107, 31, 0.1);
    border: 2px solid var(--green-dark);
    border-radius: 15px;
    color: var(--green-light);
    font-family: var(--font-body);
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.auth-switch-btn:hover {
    background: rgba(58, 107, 31, 0.2);
    border-color: var(--green-primary);
    color: var(--white-pure);
    box-shadow: 0 0 20px rgba(58, 107, 31, 0.3);
}

.auth-switch-btn:active {
    transform: scale(0.98);
}

/* Form hint */
.form-hint {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--gray-lighter);
    font-style: italic;
    margin-top: var(--space-xs);
    display: block;
    text-align: center;
}

/* Code input special styling */
.form-input-code {
    font-weight: 600;
}

.form-input-code::-webkit-input-placeholder {
    letter-spacing: 2px;
}

.form-input-code::-moz-placeholder {
    letter-spacing: 2px;
}

.form-input-code::placeholder {
    letter-spacing: 2px;
}