/* --- VARIABLES --- */
:root {
    /* Light Mode */
    --bg-color: #ffffff;
    --text-color: #1a1a1a;
    --text-muted: #666666;
    --nav-bg: rgba(255, 255, 255, 0.85); /* Glass effect */
    --card-bg: #ffffff;
    --primary-color: #0066cc;
    --primary-hover: #0052a3;
    --accent-bg: #f5f9ff;
    --border-color: #eaeaea;
    --footer-bg: #f9fafb;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
    
    /* Gradient Text Effect */
    --gradient-text: linear-gradient(135deg, #0066cc 0%, #00c6ff 100%);
    
    /* Dimensions */
    --header-height: 72px;
    --container-width: 1200px;
    --radius: 12px;
}

/* Dark Mode */
[data-theme="dark"] {
    --bg-color: #050a19;
    --text-color: #ffffff;
    --text-muted: #a3a3a3;
    --nav-bg: rgba(5, 10, 25, 0.85);
    --card-bg: #0f1c39;
    --primary-color: #3399ff;
    --primary-hover: #66b2ff;
    --accent-bg: #081026;
    --border-color: #1f2f4d;
    --footer-bg: #02040a;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.4);
    --shadow-md: 0 8px 30px rgba(0,0,0,0.5);
    --gradient-text: linear-gradient(135deg, #3399ff 0%, #00ffcc 100%);
}

/* --- GLOBAL RESET --- */
html { scroll-behavior: smooth; }
* { box-sizing: border-box; margin: 0; padding: 0; transition: background-color 0.3s ease, border-color 0.3s ease, color 0.2s ease; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    padding-top: var(--header-height);
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; }

/* Utilities */
.container { max-width: var(--container-width); margin: 0 auto; padding: 0 24px; position: relative; z-index: 2; }
.text-gradient { background: var(--gradient-text); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.text-center { text-align: center; }

/* Icons */
.icon { width: 32px; height: 32px; stroke: var(--primary-color); stroke-width: 1.5; fill: none; margin-bottom: 16px; }

/* --- HEADER & NAVIGATION --- */
header {
    position: fixed; top: 0; left: 0; width: 100%; height: var(--header-height);
    background-color: var(--nav-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.nav-container { display: flex; justify-content: space-between; align-items: center; height: 100%; }

/* Logo */
.logo { font-weight: 700; font-size: 1.5rem; display: flex; align-items: center; gap: 10px; }
.logo img { height: 36px; width: auto; }
.logo-dark { display: none; }
[data-theme="dark"] .logo-light { display: none; }
[data-theme="dark"] .logo-dark { display: block; }

/* Modern Menu Links (The "Pill" look) */
.nav-links { display: flex; gap: 8px; font-weight: 500; font-size: 0.95rem; }
.nav-links a {
    padding: 8px 16px;
    border-radius: 50px; /* Pill shape */
    color: var(--text-muted);
    transition: all 0.2s ease;
}
.nav-links a:hover {
    color: var(--primary-color);
    background-color: var(--accent-bg);
}

/* Nav Utils */
.nav-utils { display: flex; gap: 16px; align-items: center; }

/* Clean Language Toggle (No Box) */
.lang-switch {
    font-size: 0.9rem; font-weight: 600; cursor: pointer;
    padding: 6px 8px;
    color: var(--text-muted);
    transition: color 0.2s;
    user-select: none;
}
.lang-switch:hover { color: var(--primary-color); }

.theme-toggle { cursor: pointer; display: flex; align-items: center; color: var(--text-muted); transition: color 0.2s; }
.theme-toggle:hover { color: var(--primary-color); }

.menu-btn { display: none; font-size: 1.5rem; cursor: pointer; color: var(--text-color); }

/* --- SECTIONS --- */
section {
    padding: 100px 0;
    border-bottom: 1px solid var(--border-color);
    position: relative;
}

/* Typography specifics */
.subtitle {
    margin-bottom: 20px; font-weight: 600; color: var(--primary-color); 
    letter-spacing: 1px; text-transform: uppercase; font-size: 0.85rem;
}

h1 { font-size: 3.5rem; margin-bottom: 24px; line-height: 1.1; font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: 2.5rem; text-align: center; margin-bottom: 50px; font-weight: 700; letter-spacing: -0.01em; }
p { color: var(--text-muted); font-size: 1.125rem; line-height: 1.7; }

/* Primary Button */
.btn-primary {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    box-shadow: 0 4px 14px rgba(0, 102, 204, 0.3);
    transition: transform 0.2s, background-color 0.2s, box-shadow 0.2s;
}
.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.4);
}

/* --- CARDS & GRIDS --- */
.grid-layout { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 32px; width: 100%; }
.flex-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 32px; width: 100%; }

.card {
    background-color: var(--card-bg);
    padding: 40px 32px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--primary-color); }
.card h3 { margin: 12px 0; font-size: 1.25rem; font-weight: 600; }

/* Special Cards */
.team-card { width: 320px; text-align: center; display: flex; flex-direction: column; align-items: center; }
.team-img { width: 100px; height: 100px; border-radius: 50%; background-color: #e0e0e0; margin-bottom: 20px; object-fit: cover; }
.logo-item { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: var(--radius); height: 80px; width: 160px; display: flex; align-items: center; justify-content: center; font-weight: 600; color: var(--text-muted); }
.pricing-card { flex: 1; min-width: 300px; max-width: 380px; text-align: center; }
.price-tag { font-size: 3rem; font-weight: 800; color: var(--text-color); margin: 24px 0; letter-spacing: -0.02em; }
.price-tag span { font-size: 1rem; color: var(--text-muted); font-weight: 500; }
.dashboard-placeholder { background: var(--accent-bg); height: 450px; border-radius: var(--radius); display:flex; align-items:center; justify-content:center; border: 1px dashed var(--border-color); }

/* --- FOOTER (RESTORED) --- */
footer {
    background-color: var(--footer-bg);
    padding: 80px 0 40px 0;
    border-top: 1px solid var(--border-color);
    font-size: 0.95rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}
.footer-col h4 { margin-bottom: 20px; font-size: 1rem; color: var(--text-color); }
.footer-links li { margin-bottom: 12px; }
.footer-links a { color: var(--text-muted); transition: color 0.2s; }
.footer-links a:hover { color: var(--primary-color); }

.social-row { display: flex; gap: 20px; margin-top: 20px; }
.social-icon { width: 24px; height: 24px; fill: var(--text-muted); transition: fill 0.2s; cursor: pointer; }
.social-icon:hover { fill: var(--primary-color); }

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
    display: flex; justify-content: space-between;
    color: var(--text-muted); font-size: 0.9rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .nav-links {
        position: absolute; top: var(--header-height); left: 0; width: 100%;
        background-color: var(--nav-bg); 
        backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
        flex-direction: column; align-items: center; gap: 20px;
        padding: 40px 0; border-bottom: 1px solid var(--border-color);
        transform: translateY(-150%); transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: var(--shadow-md);
    }
    .nav-links.active { transform: translateY(0); }
    .menu-btn { display: block; }
    h1 { font-size: 2.5rem; }
    
    /* Footer Stack */
    .footer-grid { grid-template-columns: 1fr; gap: 40px; text-align: center; }
    .social-row { justify-content: center; }
    .footer-bottom { flex-direction: column; gap: 15px; text-align: center; }
}

/* =========================================
   Language Toggling Logic
   ========================================= */

/* 1. Show English by default (Hide French)
   This covers two cases:
   a. data-lang="en" (Explicit English)
   b. :not([data-lang]) (Page load before JS runs) */
html:not([data-lang="fr"]) .fr-text {
    display: none !important;
}

/* 2. Show French (Hide English)
   Only active when data-lang is explicitly "fr" */
html[data-lang="fr"] .en-text {
    display: none !important;
}