/* 
   INJS GABON - Global Design System
   Inspired by INSEP.fr style: Premium, Institutional, Modern
*/

:root {
    /* Primary Colors */
    --color-navy: #1A2B48;        /* Institutional Blue */
    --color-navy-light: #2A3B58;
    --color-white: #FFFFFF;
    --color-off-white: #F8F9FA;
    
    /* Gabon National Colors */
    --color-gabon-green: #009E60;
    --color-gabon-yellow: #FCD116;
    --color-gabon-blue: #3A75C4;
    
    /* Text Colors */
    --text-primary: #1A2B48;
    --text-secondary: #5E6D82;
    --text-muted: #8E9AAF;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* UI Elements */
    --radius-sm: 4px;
    --radius-md: 8px;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--text-primary);
    background-color: var(--color-off-white);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

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

/* Layout Containers */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography Utilities */
.text-uppercase { text-transform: uppercase; letter-spacing: 0.05em; }
.text-center { text-align: center; }
.section-title {
    font-size: 2.5rem;
    position: relative;
    padding-bottom: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background-color: var(--color-gabon-yellow);
}

/* Button Component */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--color-navy);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: var(--color-navy-light);
    transform: translateY(-2px);
}

.btn-outline {
    border: 2px solid var(--color-navy);
    color: var(--color-navy);
}

.btn-outline:hover {
    background-color: var(--color-navy);
    color: var(--color-white);
}

/* Glassmorphism Cards */
.card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-5px);
}

/* Navigation Component */
.nav-bar {
    background-color: var(--color-white);
    padding: var(--spacing-sm) 0;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-navy);
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
    align-items: center;
}

.nav-links a {
    font-weight: 600;
    color: var(--color-navy);
}

.nav-links a:hover {
    color: var(--color-gabon-green);
}

.portal-btn {
    background-color: var(--color-gabon-yellow);
    color: var(--color-navy) !important;
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-sm);
    font-weight: 700;
}

.portal-btn:hover {
    background-color: var(--color-gabon-blue);
    color: var(--color-white) !important;
}

/* Base Responsive */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    .nav-links {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }
    .nav-links a {
        font-size: 0.9rem;
    }
    .portal-btn {
        padding: 0.3rem 0.8rem;
    }
    .hero {
        text-align: center;
    }
    .hero h1 {
        font-size: 2.5rem !important;
    }
    .hero p {
        font-size: 1rem !important;
        margin-left: auto;
        margin-right: auto;
    }
    .hero > .container > div {
        flex-direction: column;
        align-items: stretch;
    }
    .hero .btn {
        width: 100%;
        text-align: center;
        margin-bottom: 0.5rem;
    }
    .section-title {
        font-size: 2rem;
    }
    .section-title::after {
        left: 50%;
        transform: translateX(-50%);
    }
    .card {
        padding: var(--spacing-sm);
    }
}