/* ==========================================================================
   IdeaForge Sync - Frontend Design System
   Theme: Night Sky Domes (Luxurious & Modern)
   Version: 2.0.0
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Lato:wght@400;700&family=Montserrat:wght@500;600;700&display=swap');

:root {
    /* --- Color Palette: Night Sky Luxury --- */
    
    /* Primary: Deep Midnight Blue (Headers, Primary Buttons) */
    --ifs-color-primary: #0f172a; 
    --ifs-color-primary-hover: #1e293b;
    
    /* Secondary: Soft Slate (Subtext, Borders) */
    --ifs-color-secondary: #64748b;
    
    /* Accent: Starlight Gold (Focus rings, Active states, Highlights) */
    --ifs-color-accent: #d4af37; 
    --ifs-color-accent-light: #f9f3d8;
    
    /* Backgrounds */
    --ifs-bg-body: #f8fafc;
    --ifs-bg-surface: #ffffff;
    --ifs-bg-input: #f1f5f9;
    
    /* Text Colors */
    --ifs-text-main: #334155;
    --ifs-text-dark: #0f172a;
    --ifs-text-light: #94a3b8;
    --ifs-text-inverse: #ffffff;
    
    /* Status Colors */
    --ifs-status-success: #10b981;
    --ifs-status-success-bg: #ecfdf5;
    --ifs-status-error: #ef4444;
    --ifs-status-error-bg: #fef2f2;
    --ifs-status-info: #3b82f6;
    --ifs-status-info-bg: #eff6ff;
    --ifs-status-pending: #f59e0b;
    --ifs-status-pending-bg: #fffbeb;
    --ifs-status-cancelled: #6b7280;
    --ifs-status-cancelled-bg: #f3f4f6;

    /* --- Typography --- */
    --ifs-font-heading: 'Montserrat', sans-serif;
    --ifs-font-body: 'Lato', sans-serif;
    
    /* --- Spacing System --- */
    --ifs-spacing-xs: 0.25rem;
    --ifs-spacing-sm: 0.5rem;
    --ifs-spacing-md: 1rem;
    --ifs-spacing-lg: 1.5rem;
    --ifs-spacing-xl: 2.5rem;
    --ifs-spacing-2xl: 4rem;
    
    /* --- Shadows & Radius --- */
    --ifs-radius-sm: 8px;
    --ifs-radius-md: 12px;
    --ifs-radius-lg: 20px;
    --ifs-radius-full: 9999px;
    
    --ifs-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --ifs-shadow-card: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --ifs-shadow-hover: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    --ifs-shadow-input: inset 0 2px 4px rgba(0, 0, 0, 0.04);
    
    /* --- Transitions --- */
    --ifs-transition-fast: all 0.15s ease;
    --ifs-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   Base Wrapper
   ========================================================================== */

.ifs-wrapper {
    font-family: var(--ifs-font-body);
    color: var(--ifs-text-main);
    line-height: 1.65;
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--ifs-spacing-lg);
    box-sizing: border-box;
}

.ifs-wrapper *,
.ifs-wrapper *::before,
.ifs-wrapper *::after {
    box-sizing: border-box;
}

.ifs-wrapper h1,
.ifs-wrapper h2,
.ifs-wrapper h3,
.ifs-wrapper h4 {
    font-family: var(--ifs-font-heading);
    color: var(--ifs-text-dark);
    margin: 0 0 var(--ifs-spacing-md) 0;
    font-weight: 600;
    line-height: 1.3;
}

.ifs-wrapper h1 { font-size: 2rem; }
.ifs-wrapper h2 { font-size: 1.625rem; letter-spacing: -0.02em; }
.ifs-wrapper h3 { font-size: 1.25rem; }
.ifs-wrapper h4 { font-size: 1.125rem; }

.ifs-wrapper p {
    margin: 0 0 var(--ifs-spacing-md) 0;
}

.ifs-wrapper a {
    color: var(--ifs-color-primary);
    text-decoration: none;
    transition: var(--ifs-transition-fast);
}

.ifs-wrapper a:hover {
    color: var(--ifs-color-accent);
}

/* ==========================================================================
   Layout Utilities
   ========================================================================== */

.ifs-container-sm { max-width: 480px; margin: 0 auto; }
.ifs-container-md { max-width: 640px; margin: 0 auto; }
.ifs-container-lg { max-width: 900px; margin: 0 auto; }

.ifs-text-center { text-align: center; }
.ifs-mt-xl { margin-top: var(--ifs-spacing-xl); }
.ifs-mb-xl { margin-bottom: var(--ifs-spacing-xl); }

/* ==========================================================================
   Cards
   ========================================================================== */

.ifs-card {
    background: var(--ifs-bg-surface);
    border-radius: var(--ifs-radius-md);
    box-shadow: var(--ifs-shadow-card);
    padding: var(--ifs-spacing-xl);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: var(--ifs-transition);
    position: relative;
}

.ifs-card-interactive:hover {
    transform: translateY(-3px);
    box-shadow: var(--ifs-shadow-hover);
}

.ifs-card-featured::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--ifs-color-primary), var(--ifs-color-accent));
    border-radius: var(--ifs-radius-md) var(--ifs-radius-md) 0 0;
}

.ifs-card-header {
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: var(--ifs-spacing-lg);
    margin-bottom: var(--ifs-spacing-lg);
}

.ifs-card-header h2 {
    margin-bottom: var(--ifs-spacing-xs);
}

.ifs-card-header .ifs-subtitle {
    color: var(--ifs-color-secondary);
    font-size: 0.95rem;
    margin: 0;
}

/* ==========================================================================
   Forms
   ========================================================================== */

.ifs-form-group {
    margin-bottom: var(--ifs-spacing-lg);
}

.ifs-label {
    display: block;
    font-family: var(--ifs-font-heading);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--ifs-text-dark);
    margin-bottom: var(--ifs-spacing-sm);
    letter-spacing: 0.01em;
}

.ifs-label .ifs-required {
    color: var(--ifs-status-error);
    margin-left: 2px;
}

.ifs-input,
.ifs-select,
.ifs-textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    font-family: var(--ifs-font-body);
    color: var(--ifs-text-dark);
    background-color: var(--ifs-bg-input);
    border: 2px solid transparent;
    border-radius: var(--ifs-radius-sm);
    transition: var(--ifs-transition-fast);
    appearance: none;
}

.ifs-input::placeholder,
.ifs-textarea::placeholder {
    color: var(--ifs-text-light);
}

.ifs-input:hover,
.ifs-select:hover,
.ifs-textarea:hover {
    background-color: #e2e8f0;
}

.ifs-input:focus,
.ifs-select:focus,
.ifs-textarea:focus {
    outline: none;
    background-color: var(--ifs-bg-surface);
    border-color: var(--ifs-color-accent);
    box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.12);
}

.ifs-input.ifs-error,
.ifs-select.ifs-error {
    border-color: var(--ifs-status-error);
    background-color: var(--ifs-status-error-bg);
}

.ifs-textarea {
    min-height: 120px;
    resize: vertical;
}

.ifs-help-text {
    font-size: 0.85rem;
    color: var(--ifs-color-secondary);
    margin-top: var(--ifs-spacing-xs);
}

/* Two column form layout */
.ifs-form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--ifs-spacing-md);
}

@media (max-width: 600px) {
    .ifs-form-row {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.ifs-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--ifs-spacing-sm);
    padding: 0.875rem 1.75rem;
    font-family: var(--ifs-font-heading);
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--ifs-radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--ifs-transition);
    text-decoration: none;
    letter-spacing: 0.02em;
}

.ifs-btn-primary {
    background: var(--ifs-color-primary);
    color: var(--ifs-text-inverse);
    border-color: var(--ifs-color-primary);
}

.ifs-btn-primary:hover {
    background: var(--ifs-color-primary-hover);
    border-color: var(--ifs-color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.25);
}

.ifs-btn-accent {
    background: linear-gradient(135deg, var(--ifs-color-accent), #c9a42a);
    color: var(--ifs-text-dark);
    border-color: transparent;
}

.ifs-btn-accent:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
}

.ifs-btn-outline {
    background: transparent;
    color: var(--ifs-color-primary);
    border-color: var(--ifs-color-primary);
}

.ifs-btn-outline:hover {
    background: var(--ifs-bg-input);
}

.ifs-btn-danger {
    background: var(--ifs-status-error);
    color: var(--ifs-text-inverse);
    border-color: var(--ifs-status-error);
}

.ifs-btn-danger:hover {
    background: #dc2626;
    border-color: #dc2626;
}

.ifs-btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.ifs-btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.ifs-btn-full {
    width: 100%;
}

.ifs-btn-group {
    display: flex;
    gap: var(--ifs-spacing-md);
    flex-wrap: wrap;
}

@media (max-width: 600px) {
    .ifs-btn-group {
        flex-direction: column;
    }
    .ifs-btn-group .ifs-btn {
        width: 100%;
    }
}

/* ==========================================================================
   Status Badges
   ========================================================================== */

.ifs-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.875rem;
    border-radius: var(--ifs-radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    font-family: var(--ifs-font-heading);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.ifs-badge-confirmed,
.ifs-badge-success {
    background: var(--ifs-status-success-bg);
    color: var(--ifs-status-success);
}

.ifs-badge-pending {
    background: var(--ifs-status-pending-bg);
    color: var(--ifs-status-pending);
}

.ifs-badge-pending_approval {
    background: #fef3c7;
    color: #92400e;
}

.ifs-badge-cancelled,
.ifs-badge-declined {
    background: var(--ifs-status-cancelled-bg);
    color: var(--ifs-status-cancelled);
}

.ifs-badge-error {
    background: var(--ifs-status-error-bg);
    color: var(--ifs-status-error);
}

.ifs-badge-info {
    background: var(--ifs-status-info-bg);
    color: var(--ifs-status-info);
}

/* Platform badges */
.ifs-badge-airbnb {
    background: #ff5a5f;
    color: white;
}

.ifs-badge-vrbo {
    background: #3d5a99;
    color: white;
}

.ifs-badge-booking {
    background: #003580;
    color: white;
}

/* ==========================================================================
   Alerts/Messages
   ========================================================================== */

.ifs-alert {
    display: flex;
    align-items: flex-start;
    gap: var(--ifs-spacing-md);
    padding: var(--ifs-spacing-lg);
    border-radius: var(--ifs-radius-sm);
    margin-bottom: var(--ifs-spacing-lg);
    border-left: 4px solid;
}

.ifs-alert-success {
    background: var(--ifs-status-success-bg);
    border-left-color: var(--ifs-status-success);
    color: #065f46;
}

.ifs-alert-error {
    background: var(--ifs-status-error-bg);
    border-left-color: var(--ifs-status-error);
    color: #991b1b;
}

.ifs-alert-info {
    background: var(--ifs-status-info-bg);
    border-left-color: var(--ifs-status-info);
    color: #1e40af;
}

.ifs-alert-warning {
    background: var(--ifs-status-pending-bg);
    border-left-color: var(--ifs-status-pending);
    color: #92400e;
}

.ifs-alert-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
}

.ifs-alert-content {
    flex: 1;
}

.ifs-alert-content p {
    margin: 0;
}

.ifs-alert-content strong {
    display: block;
    margin-bottom: var(--ifs-spacing-xs);
}

/* ==========================================================================
   Dashboard & Portal
   ========================================================================== */

.ifs-portal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--ifs-spacing-md);
    margin-bottom: var(--ifs-spacing-xl);
    padding-bottom: var(--ifs-spacing-lg);
    border-bottom: 2px solid #e2e8f0;
}

.ifs-portal-header h2 {
    margin: 0;
}

.ifs-welcome-msg {
    color: var(--ifs-color-secondary);
    font-size: 1.1rem;
    margin: var(--ifs-spacing-xs) 0 0 0;
}

/* Filter Navigation */
.ifs-filter-nav {
    display: flex;
    gap: var(--ifs-spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--ifs-spacing-xl);
}

.ifs-filter-link {
    padding: 0.625rem 1.25rem;
    background: var(--ifs-bg-input);
    border-radius: var(--ifs-radius-full);
    color: var(--ifs-text-main);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--ifs-transition-fast);
}

.ifs-filter-link:hover {
    background: #e2e8f0;
    color: var(--ifs-text-dark);
}

.ifs-filter-link.active {
    background: var(--ifs-color-primary);
    color: var(--ifs-text-inverse);
}

/* Booking Cards Grid */
.ifs-bookings-grid {
    display: grid;
    gap: var(--ifs-spacing-lg);
}

.ifs-booking-card {
    background: var(--ifs-bg-surface);
    border-radius: var(--ifs-radius-md);
    border: 1px solid #e2e8f0;
    overflow: hidden;
    transition: var(--ifs-transition);
}

.ifs-booking-card:hover {
    box-shadow: var(--ifs-shadow-hover);
    border-color: #cbd5e1;
}

.ifs-booking-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--ifs-spacing-lg);
    background: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
}

.ifs-booking-card-header h3 {
    margin: 0;
    font-size: 1.125rem;
}

.ifs-booking-card-body {
    padding: var(--ifs-spacing-lg);
}

.ifs-booking-details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--ifs-spacing-lg);
}

.ifs-detail-item {
    display: flex;
    flex-direction: column;
    gap: var(--ifs-spacing-xs);
}

.ifs-detail-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ifs-color-secondary);
    font-weight: 600;
}

.ifs-detail-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--ifs-text-dark);
}

.ifs-booking-card-footer {
    display: flex;
    gap: var(--ifs-spacing-sm);
    padding: var(--ifs-spacing-md) var(--ifs-spacing-lg);
    background: #f8fafc;
    border-top: 1px solid #e2e8f0;
    flex-wrap: wrap;
}

/* Empty State */
.ifs-empty-state {
    text-align: center;
    padding: var(--ifs-spacing-2xl) var(--ifs-spacing-lg);
    background: #f8fafc;
    border-radius: var(--ifs-radius-md);
}

.ifs-empty-state-icon {
    font-size: 3rem;
    margin-bottom: var(--ifs-spacing-md);
    opacity: 0.4;
}

.ifs-empty-state h3 {
    color: var(--ifs-color-secondary);
    margin-bottom: var(--ifs-spacing-sm);
}

.ifs-empty-state p {
    color: var(--ifs-text-light);
}

/* ==========================================================================
   Booking Lookup
   ========================================================================== */

.ifs-lookup-header {
    text-align: center;
    margin-bottom: var(--ifs-spacing-xl);
}

.ifs-lookup-header h2 {
    color: var(--ifs-color-primary);
    font-size: 1.75rem;
}

.ifs-lookup-header p {
    color: var(--ifs-color-secondary);
    max-width: 400px;
    margin: 0 auto;
}

/* Booking Result */
.ifs-booking-result {
    margin-top: var(--ifs-spacing-xl);
}

.ifs-result-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: var(--ifs-spacing-md);
    padding-bottom: var(--ifs-spacing-lg);
    border-bottom: 1px solid #e2e8f0;
    margin-bottom: var(--ifs-spacing-lg);
}

.ifs-result-sections {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--ifs-spacing-lg);
    margin-bottom: var(--ifs-spacing-lg);
}

.ifs-result-section {
    background: #f8fafc;
    padding: var(--ifs-spacing-lg);
    border-radius: var(--ifs-radius-sm);
    border: 1px solid #e2e8f0;
}

.ifs-result-section h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ifs-color-secondary);
    margin-bottom: var(--ifs-spacing-md);
    padding-bottom: var(--ifs-spacing-sm);
    border-bottom: 1px solid #e2e8f0;
}

/* ==========================================================================
   Login / Register Forms
   ========================================================================== */

.ifs-auth-wrapper {
    max-width: 420px;
    margin: var(--ifs-spacing-xl) auto;
}

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

.ifs-auth-header h2 {
    font-size: 1.75rem;
    color: var(--ifs-color-primary);
}

.ifs-auth-divider {
    display: flex;
    align-items: center;
    margin: var(--ifs-spacing-xl) 0;
    color: var(--ifs-text-light);
    font-size: 0.875rem;
}

.ifs-auth-divider::before,
.ifs-auth-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: #e2e8f0;
}

.ifs-auth-divider span {
    padding: 0 var(--ifs-spacing-md);
}

.ifs-auth-footer {
    text-align: center;
    margin-top: var(--ifs-spacing-lg);
    padding-top: var(--ifs-spacing-lg);
    border-top: 1px solid #e2e8f0;
    color: var(--ifs-color-secondary);
}

/* ==========================================================================
   Confirmation Page
   ========================================================================== */

.ifs-confirmation-header {
    text-align: center;
    margin-bottom: var(--ifs-spacing-xl);
}

.ifs-success-icon {
    width: 72px;
    height: 72px;
    background: var(--ifs-status-success-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--ifs-spacing-lg);
    color: var(--ifs-status-success);
    font-size: 2rem;
    animation: ifs-pop 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes ifs-pop {
    0% { transform: scale(0); }
    70% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.ifs-confirmation-number {
    background: linear-gradient(135deg, var(--ifs-color-primary), var(--ifs-color-primary-hover));
    color: var(--ifs-text-inverse);
    padding: var(--ifs-spacing-lg);
    border-radius: var(--ifs-radius-sm);
    text-align: center;
    margin-bottom: var(--ifs-spacing-xl);
}

.ifs-confirmation-number .ifs-label {
    color: rgba(255,255,255,0.8);
    font-size: 0.875rem;
    margin-bottom: var(--ifs-spacing-xs);
}

.ifs-confirmation-number .ifs-number {
    font-size: 1.75rem;
    font-weight: 700;
    font-family: var(--ifs-font-heading);
    letter-spacing: 0.05em;
}

/* ==========================================================================
   Animations
   ========================================================================== */

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

.ifs-animate-in {
    animation: ifs-fade-in 0.4s ease-out forwards;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 768px) {
    .ifs-wrapper {
        padding: var(--ifs-spacing-md);
    }
    
    .ifs-card {
        padding: var(--ifs-spacing-lg);
    }
    
    .ifs-portal-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .ifs-booking-card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--ifs-spacing-sm);
    }
    
    .ifs-booking-card-footer {
        flex-direction: column;
    }
    
    .ifs-booking-card-footer .ifs-btn {
        width: 100%;
    }
    
    .ifs-result-sections {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .ifs-wrapper h2 {
        font-size: 1.375rem;
    }
    
    .ifs-filter-nav {
        flex-direction: column;
    }
    
    .ifs-filter-link {
        text-align: center;
    }
}