/* ============================================
   Authentication Modal Styles
   Dark theme matching existing design system
   ============================================ */

/* Auth Modal Specific */
.auth-modal .modal-content {
    max-width: 480px;
}

/* Auth Tabs */
.auth-tabs {
    display: flex;
    gap: 2px;
    flex: 1;
}

.auth-tab {
    flex: 1;
    padding: var(--space-md);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.auth-tab:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.auth-tab.active {
    color: var(--accent-primary);
    border-bottom-color: var(--accent-primary);
}

/* Tab Content */
.auth-tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.auth-tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Auth Form */
.auth-form {
    width: 100%;
}

.form-description {
    color: var(--text-secondary);
    font-size: var(--text-sm);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
}

/* Form Groups */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    color: var(--text-secondary);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    margin-bottom: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"] {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: var(--text-base);
    transition: all var(--transition-fast);
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(41, 98, 255, 0.1);
}

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

/* Form Row (side by side inputs) */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

/* Password Input with Toggle */
.password-input {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input input {
    flex: 1;
    padding-right: 45px;
}

.toggle-password {
    position: absolute;
    right: 10px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

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

.toggle-password svg {
    width: 20px;
    height: 20px;
}

/* Password Strength Meter */
.password-strength {
    margin-top: var(--space-xs);
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    overflow: hidden;
}

.strength-bar {
    height: 100%;
    width: 0%;
    background: var(--text-muted);
    transition: all var(--transition-normal);
    border-radius: 2px;
}

.strength-bar.weak {
    width: 33%;
    background: var(--accent-danger);
}

.strength-bar.medium {
    width: 66%;
    background: var(--accent-warning);
}

.strength-bar.strong {
    width: 100%;
    background: var(--accent-success);
}

.form-hint {
    display: block;
    margin-top: var(--space-xs);
    color: var(--text-muted);
    font-size: var(--text-xs);
}

/* Form Options (Remember me, Forgot password) */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    cursor: pointer;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--accent-primary);
}

.checkbox-label span {
    user-select: none;
}

.link {
    color: var(--accent-primary);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}

.link:hover {
    color: var(--accent-primary-hover);
    text-decoration: underline;
}

/* Form Messages */
.form-error {
    display: none;
    padding: var(--space-sm) var(--space-md);
    background: rgba(239, 83, 80, 0.1);
    border: 1px solid var(--accent-danger);
    border-radius: var(--radius-md);
    color: var(--accent-danger);
    font-size: var(--text-sm);
    margin-bottom: var(--space-md);
}

.form-error.show {
    display: block;
    animation: slideDown 0.3s ease;
}

.form-success {
    display: none;
    padding: var(--space-sm) var(--space-md);
    background: rgba(38, 166, 154, 0.1);
    border: 1px solid var(--accent-success);
    border-radius: var(--radius-md);
    color: var(--accent-success);
    font-size: var(--text-sm);
    margin-bottom: var(--space-md);
}

.form-success.show {
    display: block;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Buttons */
.btn-block {
    width: 100%;
    justify-content: center;
}

.btn-primary {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.btn-primary .btn-loader {
    display: none;
}

.btn-primary.loading .btn-text {
    opacity: 0;
}

.btn-primary.loading .btn-loader {
    display: flex;
    position: absolute;
}

.spinner-small {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* Google Button */
.btn-google {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: #ffffff;
    border: 1px solid #dadce0;
    border-radius: var(--radius-md);
    color: #3c4043;
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-google:hover {
    background: #f8f9fa;
    box-shadow: 0 1px 2px rgba(60, 64, 67, 0.3), 0 1px 3px rgba(60, 64, 67, 0.15);
}

.btn-google:active {
    background: #f1f3f4;
}

/* Form Divider */
.form-divider {
    display: flex;
    align-items: center;
    margin: var(--space-lg) 0;
    color: var(--text-muted);
    font-size: var(--text-sm);
}

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

.form-divider span {
    padding: 0 var(--space-md);
    font-weight: var(--font-medium);
}

/* Form Footer */
.form-footer {
    margin-top: var(--space-lg);
    text-align: center;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .auth-modal .modal-content {
        max-width: 100%;
        height: 100vh;
        border-radius: 0;
        max-height: 100vh;
    }

    .auth-tab {
        padding: var(--space-sm);
        font-size: var(--text-sm);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }

    .modal-body {
        padding-bottom: calc(var(--space-lg) + 20px);
    }
}

@media (max-width: 480px) {
    .auth-modal .modal-header {
        padding: var(--space-md);
    }

    .auth-tab {
        padding: var(--space-sm) var(--space-xs);
        font-size: var(--text-xs);
    }

    .form-group label {
        font-size: var(--text-xs);
    }

    .btn-google {
        font-size: var(--text-sm);
        padding: var(--space-sm);
    }
}

/* ============================================
   Header Authentication Section
   ============================================ */

/* Auth section sits after .header-info which already has margin-left:auto */
#authButton,
.user-menu {
    flex-shrink: 0;
}

/* ============================================
   User Menu Styles
   ============================================ */

.user-menu {
    position: relative;
    display: flex;
    align-items: center;
}

.user-menu-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-sm);
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.user-menu-toggle:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent-primary);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.user-initials {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-primary);
    color: var(--text-on-accent);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
}

.user-name {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 4px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    min-width: 200px;
    padding: var(--space-sm);
    display: none;
    flex-direction: column;
    z-index: 1000;
}

/* Opened via JS click toggle — works on both desktop and mobile */
.user-dropdown.open {
    display: flex;
}

.user-dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
}

.user-dropdown-item:hover {
    background: var(--bg-tertiary);
    color: var(--accent-primary);
}

.user-dropdown-item svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .user-name {
        display: none;
    }

    .user-menu-toggle svg {
        display: none;
    }

    /* Rectangle shape for user menu button on mobile to fit header */
    .user-menu-toggle {
        height: 32px;
        min-height: 32px;
        max-height: 32px;
        padding: 0 8px;
        border-radius: 8px; /* Rectangle shape with subtle rounding */
        flex-shrink: 0;
    }

    .user-avatar {
        width: 28px;
        height: 28px;
    }

    /* On mobile, anchor the dropdown to the viewport right edge
       so it never goes off-screen regardless of parent position */
    .user-dropdown {
        position: fixed;
        top: 50px;
        right: 8px;
        left: auto;
        margin-top: 0;
        max-width: calc(100vw - 16px);
        min-width: 180px;
    }

    /* Compact Sign In button on mobile */
    #authButton {
        padding: 0 10px;
        font-size: var(--text-xs);
        height: 28px;
        min-height: 28px;
        white-space: nowrap;
    }
}

@media (max-width: 480px) {
    /* Even more compact on small phones */
    #authButton {
        padding: 0 8px;
        font-size: 0.7rem;
        height: 26px;
        min-height: 26px;
    }

    /* Hide price change badge on very small screens to save space */
    .price-change {
        display: none;
    }
}