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

:root {
    /* Elegant Color Palette - Inspired by Logo */
    --primary: #5a6b47;          /* Vert olive du logo */
    --primary-light: #6d7e5a;    /* Vert olive clair */
    --accent: #8b9976;           /* Vert sauge */
    --accent-light: #a4b894;     /* Vert sauge clair */
    --cream: #f8f6f0;            /* Warm Cream */
    --cream-dark: #e8e6e0;       /* Darker Cream */
    
    /* Neutral Colors */
    --white: #ffffff;
    --black: #0a0a0a;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    
    /* Typography */
    --font-serif: 'Cormorant Garamond', serif;
    --font-sans: 'Inter', sans-serif;
    
    /* Spacing */
    --nav-width: 280px;
}

body {
    font-family: var(--font-sans);
    color: var(--gray-900);
    background-color: var(--white);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Watercolor Background */
.watercolor-bg {
    background: var(--white);
    position: relative;
}

.watercolor-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(90, 107, 71, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 153, 118, 0.02) 0%, transparent 50%);
    pointer-events: none;
}

/* Navigation Sidebar */
.nav-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--nav-width);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(248, 246, 240, 0.95) 100%);
    backdrop-filter: blur(20px);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.08);
    border-right: 1px solid rgba(90, 107, 71, 0.15);
    z-index: 9999;
    overflow-y: auto;
}

.nav-content {
    padding: 2rem 1.5rem;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.nav-logo {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(90, 107, 71, 0.2);
}

.nav-logo a {
    text-decoration: none;
    display: block;
}

.logo-image {
    width: 100%;
    max-width: 200px;
    height: auto;
    display: block;
    margin: 0 auto;
    transition: all 0.3s ease;
}

.logo-image:hover {
    transform: scale(1.05);
    filter: brightness(1.1);
}

/* Hide text if logo image loads successfully */
.nav-logo a:has(.logo-image) .logo-text {
    display: none;
}

/* Fallback text styling */
.logo-text {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 400;
    letter-spacing: 0.5px;
    color: var(--primary);
    text-decoration: none;
    transition: all 0.3s ease;
    text-align: center;
    display: block;
}

.logo-text:hover {
    color: var(--accent);
    letter-spacing: 1px;
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    color: var(--gray-700);
    text-decoration: none;
    border-radius: 12px;
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.nav-link:hover {
    background: rgba(90, 107, 71, 0.1);
    color: var(--primary);
    transform: translateX(4px);
}

.nav-link:hover::before {
    transform: scaleY(1);
}

.nav-link.active {
    background: linear-gradient(135deg, rgba(90, 107, 71, 0.15) 0%, rgba(139, 153, 118, 0.1) 100%);
    color: var(--primary);
    box-shadow: 0 2px 8px rgba(90, 107, 71, 0.15);
}

.nav-link.active::before {
    transform: scaleY(1);
}

.nav-icon {
    width: 1.5rem;
    height: 1.5rem;
    flex-shrink: 0;
    opacity: 0.9;
}

/* Main Content */
.main-content {
    position: relative;
    min-height: 100vh;
}

/* Landing Page */
.landing-container {
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
}

.oncyber-iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Page Container */
.page-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 4rem 1rem;
}

/* Typography */
.title-serif {
    font-family: var(--font-serif);
}

h1 {
    font-size: 3rem;
    font-weight: 300;
    margin-bottom: 1.5rem;
    color: var(--gray-900);
}

h2 {
    font-size: 2rem;
    font-weight: 400;
    margin-bottom: 1rem;
    color: var(--gray-900);
}

h3 {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
    color: var(--gray-900);
}

p {
    line-height: 1.7;
    color: var(--gray-600);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2.5rem;
    border-radius: 8px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-family: var(--font-sans);
    letter-spacing: 0.3px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(90, 107, 71, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(90, 107, 71, 0.35);
}

.btn-secondary {
    background: var(--accent);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(139, 153, 118, 0.25);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(139, 153, 118, 0.35);
    background: var(--accent-light);
}

/* Cards */
.card {
    background: var(--white);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
    transition: all 0.4s ease;
    border: 1px solid var(--gray-200);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
    border-color: var(--accent-light);
}

/* Grid */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }

/* Responsive */
@media (max-width: 1024px) {
    .nav-sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .nav-sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .grid-cols-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    
    .grid-cols-2,
    .grid-cols-3 { 
        grid-template-columns: 1fr; 
    }
    
    .page-container {
        padding: 2rem 1rem;
    }
}

/* Utilities */
.text-center { text-align: center; }
.mt-4 { margin-top: 1rem; }
.mt-8 { margin-top: 2rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }

.hidden { display: none; }
.block { display: block; }

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}