/* ========================================
   ENSEIGNER AVEC L'IA - SITE COMPAGNON
   Styles principaux
   ======================================== */

/* ----------------------------------------
   CSS Variables (Design Tokens)
   ---------------------------------------- */
:root {
    /* Colors - Light Mode */
    --color-primary: #1e40af;
    --color-primary-light: #3b82f6;
    --color-primary-dark: #1e3a8a;

    --color-secondary: #374151;
    --color-secondary-light: #6b7280;
    --color-secondary-dark: #1f2937;

    --color-accent: #f97316;
    --color-accent-light: #fb923c;
    --color-accent-dark: #ea580c;

    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;

    /* Feature card colors */
    --color-blue: #3b82f6;
    --color-green: #10b981;
    --color-purple: #8b5cf6;
    --color-orange: #f97316;

    /* Background colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-card: #ffffff;

    /* Text colors */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    --text-inverse: #ffffff;

    /* Border colors */
    --border-color: #e2e8f0;
    --border-color-light: #f1f5f9;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-glow: 0 0 40px rgb(59 130 246 / 0.3);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;

    /* Z-index layers */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 400;
    --z-tooltip: 500;
}

/* Dark Mode */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;

    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-tertiary: #64748b;

    /* Override primary color for better contrast in dark mode */
    --color-primary: #60a5fa;
    --color-primary-light: #93c5fd;
    --color-primary-dark: #3b82f6;

    --border-color: #334155;
    --border-color-light: #1e293b;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.3);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.5), 0 8px 10px -6px rgb(0 0 0 / 0.4);
}

/* ----------------------------------------
   Reset & Base Styles
   ---------------------------------------- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-sans);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

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

a:hover {
    color: var(--color-primary-light);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul,
ol {
    list-style: none;
}

button {
    font-family: inherit;
    font-size: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ----------------------------------------
   Utilities
   ---------------------------------------- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.text-gradient {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 50%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ----------------------------------------
   Buttons
   ---------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn svg {
    width: 18px;
    height: 18px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--text-inverse);
    box-shadow: var(--shadow-md), 0 0 0 0 rgb(59 130 246 / 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 20px rgb(59 130 246 / 0.4);
    color: var(--text-inverse);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--color-primary-light);
    color: var(--color-primary);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
}

.btn-lg svg {
    width: 20px;
    height: 20px;
}

/* ----------------------------------------
   Header & Navigation
   ---------------------------------------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

[data-theme="dark"] .header {
    background: rgba(15, 23, 42, 0.8);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--text-primary);
}

.logo:hover {
    color: var(--text-primary);
}

.logo-icon {
    font-size: 1.5rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-link {
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
    background: var(--bg-secondary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

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

.theme-icon-dark {
    display: none;
}

[data-theme="dark"] .theme-icon-light {
    display: none;
}

[data-theme="dark"] .theme-icon-dark {
    display: block;
}

.mobile-menu-btn {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
}

.mobile-menu-btn svg {
    width: 24px;
    height: 24px;
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        padding: var(--spacing-md);
        background: var(--bg-primary);
        border-bottom: 1px solid var(--border-color);
        gap: var(--spacing-xs);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-actions .btn span {
        display: none;
    }
}

/* ----------------------------------------
   Hero Section
   ---------------------------------------- */
.hero {
    position: relative;
    padding: 8rem var(--spacing-lg) var(--spacing-3xl);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 90% 20%, rgba(249, 115, 22, 0.1) 0%, transparent 50%);
}

[data-theme="dark"] .hero-gradient {
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(59, 130, 246, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 90% 20%, rgba(249, 115, 22, 0.15) 0%, transparent 50%);
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 1px 1px, var(--border-color) 1px, transparent 0);
    background-size: 40px 40px;
    opacity: 0.5;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-content {
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-lg);
}

.hero-badge svg {
    width: 14px;
    height: 14px;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-2xl);
}

.hero-stat {
    display: flex;
    flex-direction: column;
}

.hero-stat-value {
    font-family: var(--font-sans);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.hero-stat-label {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    animation: fadeInUp 0.6s ease-out 0.2s backwards;
}

.book-card {
    position: relative;
}

.book-cover {
    width: 280px;
    height: 380px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
    transition: transform var(--transition-slow);
}

.book-card:hover .book-cover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.book-cover-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: var(--spacing-xl);
    text-align: center;
    color: var(--text-inverse);
}

.book-icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.book-title-small {
    font-family: var(--font-sans);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.book-author {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-sm);
}

.book-publisher {
    font-size: 0.875rem;
    opacity: 0.7;
}

.book-glow {
    position: absolute;
    bottom: -20%;
    left: 10%;
    right: 10%;
    height: 40%;
    background: radial-gradient(ellipse at center, rgba(59, 130, 246, 0.3) 0%, transparent 70%);
    filter: blur(40px);
}

@media (max-width: 968px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-visual {
        order: -1;
    }

    .book-cover {
        width: 220px;
        height: 300px;
    }
}

/* ----------------------------------------
   Features Section
   ---------------------------------------- */
.features {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    background: rgba(59, 130, 246, 0.1);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

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

.feature-card {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-xl);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-light);
    color: var(--text-primary);
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.feature-icon-blue {
    background: linear-gradient(135deg, var(--color-blue) 0%, #60a5fa 100%);
}

.feature-icon-green {
    background: linear-gradient(135deg, var(--color-green) 0%, #34d399 100%);
}

.feature-icon-purple {
    background: linear-gradient(135deg, var(--color-purple) 0%, #a78bfa 100%);
}

.feature-icon-orange {
    background: rgba(249, 115, 22, 0.1);
    color: #f97316;
}

.feature-icon-red {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    flex-grow: 1;
    margin-bottom: var(--spacing-lg);
}

.feature-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
}

.feature-link svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
}

.feature-card:hover .feature-link svg {
    transform: translateX(4px);
}

/* ----------------------------------------
   About Section
   ---------------------------------------- */
.about-section {
    padding: var(--spacing-3xl) var(--spacing-lg);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-content {
    max-width: 500px;
}

.about-text {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.about-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.about-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.about-list svg {
    width: 20px;
    height: 20px;
    color: var(--color-success);
    flex-shrink: 0;
    margin-top: 2px;
}

.about-visual {
    display: flex;
    justify-content: center;
}

.about-card {
    padding: var(--spacing-xl);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    min-width: 280px;
}

.about-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-md);
}

.about-card-header svg {
    width: 16px;
    height: 16px;
}

.about-card-date {
    display: block;
    font-family: var(--font-sans);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.about-card-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
    }

    .about-visual {
        order: -1;
    }
}

/* ----------------------------------------
   CTA Section
   ---------------------------------------- */
.cta-section {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: var(--bg-secondary);
}

.cta-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
    padding: var(--spacing-2xl);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-2xl);
    color: var(--text-inverse);
}

.cta-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.cta-text {
    opacity: 0.9;
}

.cta-card .btn-primary {
    background: white;
    color: var(--color-primary);
    flex-shrink: 0;
}

.cta-card .btn-primary:hover {
    background: var(--bg-secondary);
}

@media (max-width: 768px) {
    .cta-card {
        flex-direction: column;
        text-align: center;
    }
}

/* ----------------------------------------
   Footer
   ---------------------------------------- */
.footer {
    padding: var(--spacing-3xl) var(--spacing-lg) var(--spacing-xl);
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .logo {
    margin-bottom: var(--spacing-md);
}

.footer-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.footer-title {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-md);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.9375rem;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-primary);
}

.footer-links svg {
    width: 16px;
    height: 16px;
}

.footer-bottom {
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 480px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* ----------------------------------------
   Dropdown Navigation
   ---------------------------------------- */
.nav-item {
    position: relative;
}

.nav-link-dropdown {
    display: flex !important;
    align-items: center;
    gap: 4px;
    cursor: pointer;
}

.nav-link-dropdown svg {
    width: 14px;
    height: 14px;
    transition: transform var(--transition-fast);
}

.nav-item:hover .nav-link-dropdown svg {
    transform: rotate(180deg);
}

/* CRITICAL: Override flex display from parent .nav-links */
.nav-links .dropdown-menu {
    display: none !important;
    position: absolute;
    top: calc(100% - 2px);
    /* Overlap by 2px to eliminate gap */
    left: 0;
    min-width: 220px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-sm);
    margin-top: 0;
    /* No margin to avoid hover zone gap */
    z-index: var(--z-dropdown);
}

.nav-item:hover .dropdown-menu {
    display: block !important;
}

.dropdown-menu a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-size: 0.875rem;
}

.dropdown-menu a:hover {
    background: var(--bg-secondary);
    color: var(--color-primary);
}

.dropdown-menu a.active {
    color: var(--color-primary);
    font-weight: 600;
}

/* Dark mode dropdown */
[data-theme="dark"] .dropdown-menu {
    background: var(--bg-tertiary);
}

/* Mobile dropdown */
@media (max-width: 768px) {
    .nav-links .dropdown-menu {
        position: static !important;
        display: none !important;
        margin-top: 0;
        border: none;
        box-shadow: none;
        background: transparent;
        padding-left: var(--spacing-lg);
    }

    .dropdown-menu.active {
        display: block !important;
    }

    .nav-item .nav-link-dropdown {
        justify-content: space-between;
        width: 100%;
    }
}