/**
 * ============================================================================
 * JSBILLING — Application Logicielle sous Licence Commerciale Payante
 * JSBILLING — Premium Commercial Software License
 * Reproduction ou distribution non autorisée strictement interdite.
 * Unauthorized reproduction or distribution strictly prohibited.
 * ============================================================================
 */

/* ============================================ */
/* VARIABLES & RESET */
/* ============================================ */
:root {
    --primary-dark: #1a1a2e;
    --primary-darker: #0f0f1e;
    --primary-medium: #16213e;
    --primary-accent: #0984e3;
    --primary-accent-hover: #0770c2;
    --secondary: #6c5ce7;
    --success: #00b894;
    --danger: #d63031;
    --warning: #fdcb6e;
    --info: #74b9ff;
    --light: #f5f6fa;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-600: #6c757d;
    --gray-800: #343a40;
    --text-dark: #2d3436;
    --text-light: #636e72;
    --gradient-primary: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    --gradient-accent: linear-gradient(135deg, #0984e3 0%, #6c5ce7 100%);
    --gradient-hero: linear-gradient(135deg, rgba(26, 26, 46, 0.95) 0%, rgba(22, 33, 62, 0.85) 100%);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-dark);
    background: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}

/* ============================================ */
/* TYPOGRAPHIE */
/* ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--primary-dark);
    line-height: 1.3;
}

.text-gradient {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================ */
/* BOUTONS */
/* ============================================ */
.btn {
    font-weight: 600;
    border-radius: var(--radius-sm);
    padding: 10px 22px;
    transition: var(--transition);
    letter-spacing: 0.3px;
}

.btn-primary {
    background: var(--primary-accent);
    border: none;
    color: #fff;
}

.btn-primary:hover {
    background: var(--primary-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(9, 132, 227, 0.35);
}

.btn-outline-primary {
    border: 2px solid var(--primary-accent);
    color: var(--primary-accent);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--primary-accent);
    color: #fff;
    transform: translateY(-2px);
}

.btn-lg {
    padding: 14px 32px;
    font-size: 1rem;
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* ============================================ */
/* NAVBAR */
/* ============================================ */
.navbar {
    padding: 15px 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: var(--gradient-primary);
    padding: 10px 0;
    box-shadow: var(--shadow-lg);
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.5rem;
    color: #fff !important;
    letter-spacing: 1px;
}

.navbar-logo {
    height: 40px;
    width: auto;
}

.brand-text {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.85) !important;
    font-weight: 500;
    padding: 8px 16px !important;
    transition: var(--transition);
    position: relative;
}

.navbar-nav .nav-link:hover {
    color: #fff !important;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-accent);
    transition: var(--transition);
    transform: translateX(-50%);
}

.navbar-nav .nav-link:hover::after {
    width: 70%;
}

.navbar-tools .btn-outline-light {
    border-color: rgba(255, 255, 255, 0.3);
    color: #fff;
    font-size: 0.85rem;
}

.navbar-tools .btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.navbar-tools .dropdown-menu {
    border-radius: var(--radius-md);
    border: none;
    box-shadow: var(--shadow-lg);
    padding: 8px;
    min-width: 150px;
}

.navbar-tools .dropdown-item {
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    font-size: 0.9rem;
}

.navbar-tools .dropdown-item:hover {
    background: var(--gray-100);
}

.navbar-tools .dropdown-item.active {
    background: var(--primary-accent);
    color: #fff;
}

.navbar-toggler {
    border: none;
    padding: 8px;
}

.navbar-toggler:focus {
    box-shadow: none;
}

/* ============================================ */
/* SECTIONS */
/* ============================================ */
.section-header {
    margin-bottom: 50px;
}

.section-tag {
    display: inline-block;
    background: rgba(9, 132, 227, 0.1);
    color: var(--primary-accent);
    padding: 6px 18px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 15px;
    color: var(--primary-dark);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

.section-packs {
    padding: 80px 0;
}

.section-alt {
    background: var(--gray-100);
}

/* ============================================ */
/* FORMS */
/* ============================================ */
.form-control, .form-select {
    padding: 11px 16px;
    border: 1.5px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-accent);
    box-shadow: 0 0 0 3px rgba(9, 132, 227, 0.15);
}

.form-label {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 6px;
    font-size: 0.9rem;
}

/* ============================================ */
/* ALERTS */
/* ============================================ */
.alert {
    border-radius: var(--radius-md);
    border: none;
    padding: 15px 20px;
}

.alert-success {
    background: rgba(0, 184, 148, 0.1);
    color: #00856a;
    border-left: 4px solid var(--success);
}

.alert-danger {
    background: rgba(214, 48, 49, 0.1);
    color: #a52425;
    border-left: 4px solid var(--danger);
}

.alert-info {
    background: rgba(9, 132, 227, 0.1);
    color: #0770c2;
    border-left: 4px solid var(--primary-accent);
}

/* ============================================ */
/* WHATSAPP FLOAT */
/* ============================================ */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition);
    text-decoration: none;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    color: #fff;
    box-shadow: 0 12px 35px rgba(37, 211, 102, 0.5);
}

.whatsapp-pulse {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: #25D366;
    animation: whatsapp-pulse 2s infinite;
    z-index: -1;
}

@keyframes whatsapp-pulse {
    0% {
        transform: scale(1);
        opacity: 0.7;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

/* ============================================ */
/* RESPONSIVE */
/* ============================================ */
@media (max-width: 991px) {
    .navbar-collapse {
        background: var(--gradient-primary);
        padding: 20px;
        margin-top: 15px;
        border-radius: var(--radius-md);
    }
    
    .navbar-tools {
        margin-top: 15px;
        padding-top: 15px;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    .whatsapp-float {
        width: 55px;
        height: 55px;
        bottom: 20px;
        right: 20px;
        font-size: 1.7rem;
    }
}