/**
 * Auth Modal Styles
 * Reusable authentication modal component
 */

.auth-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl, 32px);
}

.auth-modal-overlay.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.auth-modal-content {
    background: var(--white, #ffffff);
    max-width: 500px;
    width: 100%;
    border-radius: var(--radius-lg, 16px);
    padding: var(--spacing-3xl, 48px) var(--spacing-2xl, 40px);
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

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

/* Close button */
.modal-close {
    position: absolute;
    top: var(--spacing-lg, 24px);
    right: var(--spacing-lg, 24px);
    background: none;
    border: none;
    font-size: 32px;
    line-height: 1;
    color: var(--gray-600, #6b7280);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s ease;
}

.modal-close:hover {
    color: var(--gray-900, #111827);
}

/* Hide close button when not allowed */
.auth-modal-content.no-close .modal-close {
    display: none;
}

/* Header */
.auth-modal-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl, 40px);
}

.auth-modal-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900, #111827);
    margin: 0 0 var(--spacing-lg, 24px) 0;
    line-height: 1.2;
}

/* Language switcher */
.language-switcher {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm, 8px);
}

.lang-btn {
    background: none;
    border: none;
    color: var(--gray-500, #9ca3af);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    padding: var(--spacing-xs, 4px) var(--spacing-sm, 8px);
    transition: color 0.2s ease;
}

.lang-btn:hover {
    color: var(--gray-700, #374151);
}

.lang-btn.active {
    color: var(--primary, #1a73e8);
    font-weight: 700;
}

.lang-separator {
    color: var(--gray-400, #d1d5db);
    font-size: 14px;
}

/* Tabs - Matching auth.html design */
.auth-tabs {
    display: flex;
    margin-bottom: var(--spacing-2xl, 40px);
    background: var(--light-gray, #f3f4f6);
    border-radius: var(--radius-md, 8px);
    padding: 4px;
    gap: 4px;
}

.auth-tab {
    flex: 1;
    padding: var(--spacing-base, 12px) var(--spacing-sm, 8px);
    border: none;
    background: transparent;
    color: var(--gray, #6b7280);
    font-size: var(--font-size-sm, 14px);
    font-weight: var(--font-weight-semibold, 600);
    font-family: var(--font-primary, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif);
    cursor: pointer;
    border-radius: var(--radius-sm, 6px);
    transition: all 0.3s ease;
}

.auth-tab.active {
    background: var(--white, #ffffff);
    color: var(--primary-blue, #1a73e8);
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0, 0, 0, 0.1));
}

.auth-tab:hover:not(.active):not(:disabled) {
    color: var(--dark, #111827);
}

.auth-tab:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Forms */
.auth-forms {
    position: relative;
}

.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.form-group {
    margin-bottom: var(--spacing-lg, 20px);
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700, #374151);
    margin-bottom: var(--spacing-xs, 6px);
}

.form-input {
    width: 100%;
    padding: var(--spacing-md, 12px) var(--spacing-lg, 16px);
    border: 2px solid var(--gray-300, #d1d5db);
    border-radius: var(--radius-md, 8px);
    font-size: 16px;
    color: var(--gray-900, #111827);
    transition: all 0.2s ease;
    font-family: inherit;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary, #1a73e8);
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1);
}

.form-input::placeholder {
    color: var(--gray-400, #9ca3af);
}

/* Password wrapper */
.password-wrapper {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: var(--spacing-md, 12px);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--gray-600, #6b7280);
    cursor: pointer;
    padding: var(--spacing-xs, 4px) var(--spacing-sm, 8px);
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s ease;
}

.password-toggle:hover {
    color: var(--gray-900, #111827);
}

/* Button - Matching auth.html */
.auth-modal-content .btn-primary {
    width: 100%;
    padding: var(--spacing-base, 12px) var(--spacing-xl, 24px);
    background: var(--primary-blue, #3B82F6) !important;
    color: var(--white, #ffffff) !important;
    border: none;
    border-radius: var(--radius-md, 8px);
    font-size: var(--font-size-md, 16px);
    font-weight: var(--font-weight-semibold, 600);
    font-family: var(--font-primary, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif);
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-blue-sm, 0 2px 8px rgba(59, 130, 246, 0.3));
    margin-top: var(--spacing-base, 12px);
    position: relative;
}

.auth-modal-content .btn-primary:hover:not(:disabled) {
    background: var(--dark-blue, #2563EB) !important;
    transform: translateY(-2px);
    box-shadow: var(--shadow-blue-md, 0 4px 12px rgba(59, 130, 246, 0.4));
}

.auth-modal-content .btn-primary:active {
    transform: translateY(0);
}

.auth-modal-content .btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Ensure button text is white */
.auth-modal-content .btn-primary .btn-text,
.auth-modal-content .btn-primary span {
    color: var(--white, #ffffff) !important;
}

/* Button loading state */
.btn-loading {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Signup disabled notice */
.signup-disabled-notice {
    text-align: center;
    padding: var(--spacing-xl, 32px);
    background: var(--gray-100, #f3f4f6);
    border-radius: var(--radius-md, 8px);
    color: var(--gray-600, #6b7280);
    font-size: 14px;
    line-height: 1.6;
}

.signup-disabled-notice strong {
    color: var(--gray-900, #111827);
    display: block;
    margin-bottom: var(--spacing-sm, 8px);
    font-size: 16px;
}

/* Form messages */
.form-message {
    margin-top: var(--spacing-md, 12px);
    padding: var(--spacing-md, 12px);
    border-radius: var(--radius-sm, 6px);
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    display: none;
}

.form-message:not(:empty) {
    display: block;
}

.form-message.success {
    background: #d1fae5;
    color: #065f46;
}

.form-message.error {
    background: #fee2e2;
    color: #991b1b;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .auth-modal-overlay {
        padding: var(--spacing-md, 16px);
    }

    .auth-modal-content {
        max-height: 80vh;
        padding: var(--spacing-2xl, 32px) var(--spacing-lg, 20px);
    }

    .auth-modal-title {
        font-size: 24px;
    }

    .auth-tab {
        font-size: 14px;
        padding: var(--spacing-sm, 10px) var(--spacing-md, 12px);
    }

    .form-input,
    .btn-primary {
        font-size: 16px; /* Prevent zoom on iOS */
    }
}

@media (max-width: 480px) {
    .auth-modal-content {
        padding: var(--spacing-xl, 24px) var(--spacing-md, 16px);
    }

    .auth-modal-title {
        font-size: 20px;
    }

    .modal-close {
        top: var(--spacing-md, 16px);
        right: var(--spacing-md, 16px);
    }

    .auth-tab {
        padding: var(--spacing-sm, 10px) var(--spacing-xs, 4px);
        font-size: var(--font-size-xs, 12px);
    }
}

/* Scrollbar styling for modal content */
.auth-modal-content::-webkit-scrollbar {
    width: 8px;
}

.auth-modal-content::-webkit-scrollbar-track {
    background: var(--gray-100, #f3f4f6);
    border-radius: 4px;
}

.auth-modal-content::-webkit-scrollbar-thumb {
    background: var(--gray-400, #9ca3af);
    border-radius: 4px;
}

.auth-modal-content::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500, #6b7280);
}

/* Forgot Password Styles */
.form-footer {
    margin-top: var(--spacing-base, 16px);
    text-align: center;
}

.forgot-password-link {
    color: var(--primary-blue, #3b82f6);
    font-size: var(--font-size-sm, 14px);
    text-decoration: none;
    transition: opacity 0.2s ease;
    cursor: pointer;
    display: inline-block;
}

.forgot-password-link:hover {
    opacity: 0.8;
    text-decoration: underline;
}

.forgot-password-modal {
    display: none;
}

.forgot-password-header {
    position: relative;
    margin-bottom: var(--spacing-xl, 32px);
    text-align: center;
}

.forgot-password-header h3 {
    font-size: var(--font-size-xl, 24px);
    font-weight: 700;
    color: var(--gray-900, #111827);
    margin: 0;
}

.back-button {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    font-size: 24px;
    color: var(--gray-600, #6b7280);
    cursor: pointer;
    padding: var(--spacing-xs, 4px);
    line-height: 1;
    transition: color 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-button:hover {
    color: var(--gray-900, #111827);
}

.forgot-password-description {
    color: var(--gray-600, #6b7280);
    font-size: var(--font-size-sm, 14px);
    margin-bottom: var(--spacing-xl, 32px);
    line-height: 1.5;
    text-align: center;
}