/**
 * NEXT FOOD AFRICA — MAIN CORE STYLES
 * Base layout, Bootstrap overrides, premium structural design.
 */

/* --- CORE FRAMEWORK OVERRIDES & RESET --- */
body {
    font-family: var(--font-family-base);
    background-color: var(--brand-black-pure);
    color: var(--brand-light-muted);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4, .h5, .h6 {
    color: var(--brand-white-pure);
    font-weight: var(--fw-bold);
    letter-spacing: var(--tracking-tight);
}

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

/* --- STRUCTURES SECTIONS & CONTRASTES --- */
.section-padding {
    padding-top: var(--section-padding-desktop);
    padding-bottom: var(--section-padding-desktop);
}

.bg-dark-deep {
    background-color: var(--brand-dark-deep) !important;
}

.bg-black-pure {
    background-color: var(--brand-black-pure) !important;
}

.border-gray-dark {
    border-color: var(--brand-gray-dark) !important;
}

/* --- DESIGN UTILITIES & BADGES --- */
.text-gradient-green {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-gradient-orange {
    background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.badge-premium {
    background: var(--brand-gray-dark);
    border: 1px solid var(--bg-glass-border);
    color: var(--brand-light-muted);
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-pill);
    font-size: 0.8rem;
    font-weight: var(--fw-medium);
    letter-spacing: var(--tracking-wide);
}

.section-subtitle {
    font-size: 0.85rem;
    text-uppercase: uppercase;
    font-weight: var(--fw-bold);
    letter-spacing: var(--tracking-widest);
    display: block;
}

.section-title {
    font-size: 2.5rem;
    font-weight: var(--fw-extrabold);
}

.accent-line {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--brand-green-primary), var(--brand-orange-primary));
    margin-top: 1.5rem;
    border-radius: var(--radius-pill);
}

/* --- GLOBAL LAYOUT LAYER (LOADER & PROGRESS) --- */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--brand-black-pure);
    z-index: var(--z-index-loader);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

.spinner-custom {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(16, 185, 129, 0.1);
    border-top-color: var(--brand-green-primary);
    border-radius: 50%;
    animation: spin-premium 1s linear infinite;
}

.scroll-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--brand-green-primary), var(--brand-orange-primary));
    z-index: var(--z-index-fixed);
    transition: width 0.1s linear;
}

/* --- PREMIUM TRANSLUCENT NAVBAR --- */
.header-premium {
    background: rgba(5, 5, 5, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 1.2rem 0;
    transition: var(--transition-smooth);
}

.header-premium.scrolled {
    padding: 0.8rem 0;
    background: rgba(11, 15, 23, 0.85);
    box-shadow: var(--shadow-sm);
}

.brand-accent {
    font-weight: var(--fw-extrabold);
    color: var(--brand-green-primary);
}

.navbar-nav .nav-link {
    color: var(--brand-gray-muted) !important;
    font-size: 0.9rem;
    font-weight: var(--fw-medium);
    padding: 0.5rem 1.2rem !important;
    transition: var(--transition-fast);
}

.navbar-nav .nav-link:hover, .navbar-nav .nav-link.active {
    color: var(--brand-white-pure) !important;
}

/* --- ULTRA-PREMIUM BUTTONS & microinteractions --- */
.btn-premium-primary {
    background: linear-gradient(135deg, var(--brand-green-primary) 0%, var(--brand-green-hover) 100%);
    color: var(--brand-white-pure);
    border: none;
    font-weight: var(--fw-semibold);
    padding: 0.8rem 1.8rem;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.btn-premium-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-premium-glow);
    color: var(--brand-white-pure);
}

.btn-premium-secondary {
    background: rgba(255, 255, 255, 0.03);
    color: var(--brand-white-pure);
    border: 1px solid var(--bg-glass-border);
    font-weight: var(--fw-semibold);
    padding: 0.8rem 1.8rem;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.btn-premium-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
    color: var(--brand-white-pure);
}

/* --- HERO COMPONENT & GLASS INTERFACE --- */
.hero-section {
    min-vh: 100vh;
    background: radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 20% 80%, rgba(249, 115, 22, 0.05) 0%, transparent 50%);
}

.text-light-muted {
    color: var(--brand-light-muted);
}

.hero-card-display {
    position: relative;
    padding: 1rem;
    border-radius: var(--radius-lg);
}

.glass-card-premium {
    background: var(--bg-glass-surface);
    border: 1px solid var(--bg-glass-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
}

.rounded-premium-img {
    border-radius: var(--radius-md);
    width: 100%;
    object-fit: cover;
}

.floating-badge {
    position: absolute;
    background: rgba(11, 15, 23, 0.8);
    border: 1px solid var(--bg-glass-border);
    backdrop-filter: blur(8px);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--brand-white-pure);
    font-size: 0.85rem;
    font-weight: var(--fw-medium);
}

.badge-top-right {
    top: 10%;
    right: -5%;
}

/* --- GRID CARDS (PROBLEMS, SERVICES, SOLUTIONS) --- */
.card-premium {
    background: var(--brand-gray-dark);
    border: 1px solid var(--border-color-soft);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    transition: var(--transition-smooth);
}

.card-premium:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: var(--shadow-lg);
}

.card-icon-wrap {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.bg-soft-orange { background-color: var(--bg-soft-orange); }
.bg-soft-green { background-color: var(--bg-soft-green); }

.premium-blockquote {
    border-left: 3px solid var(--brand-orange-primary);
    padding-left: 2rem;
    font-size: 1.5rem;
    font-style: italic;
    color: var(--brand-white-pure);
    text-align: left;
    margin: 3rem 0;
}

/* --- SERVICES & OFFRES TIERS --- */
.grid-services-premium {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.card-service-grid {
    padding: 2.5rem;
    display: flex;
    flex-column: column;
    height: 100%;
}

.price-badge-free {
    background: var(--bg-soft-green);
    color: var(--brand-green-primary);
    padding: 0.4rem 1rem;
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: var(--fw-bold);
}

.price-badge-premium {
    background: var(--bg-soft-orange);
    color: var(--brand-orange-primary);
    padding: 0.4rem 1rem;
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: var(--fw-bold);
}

.service-grid-icon {
    font-size: 2rem;
}

.final-price {
    font-size: 1.6rem;
    font-weight: var(--fw-extrabold);
}

/* --- STYLE CARTE UDEMY / TRAINING --- */
.card-udemy-style {
    padding: 0;
    overflow: hidden;
}

.card-img-premium-wrapper {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.card-img-top-premium {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.card-udemy-style:hover .card-img-top-premium {
    transform: scale(1.05);
}

.badge-tag {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: var(--fw-semibold);
    color: var(--brand-white-pure);
}

.bg-blur { background: rgba(11, 15, 23, 0.6); backdrop-filter: blur(8px); }
.bg-orange { background: var(--brand-orange-primary); }
.bg-green { background: var(--brand-green-primary); }

.card-body-premium {
    padding: 2rem;
}

.promo-alert {
    font-size: 0.8rem;
    color: var(--brand-orange-primary);
    background: var(--bg-soft-orange);
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    display: inline-block;
}

.border-highlight-green {
    border: 1px solid rgba(16, 185, 129, 0.4) !important;
    box-shadow: var(--shadow-premium-glow);
}

/* --- EXECUTIVE TIMELINE & EXECUTIVE TIER --- */
.step-number {
    font-size: 3.5rem;
    font-weight: var(--fw-extrabold);
    opacity: 0.3;
    line-height: 1;
}

.card-team-premium {
    padding: 1.5rem;
}

.team-avatar-wrap {
    height: 320px;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.team-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.card-team-premium:hover .team-img {
    transform: scale(1.03);
}

.list-accomplishments li {
    margin-bottom: 0.6rem;
    line-height: 1.4;
}

/* --- PREMIUM SLIDER (TESTIMONIALS) --- */
.slider-premium-track {
    display: flex;
    will-change: transform;
}

.btn-slider-control {
    background: var(--brand-gray-dark);
    border: 1px solid var(--bg-glass-border);
    color: var(--brand-white-pure);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.btn-slider-control:hover {
    background: var(--brand-green-primary);
    border-color: var(--brand-green-primary);
    color: var(--brand-white-pure);
}

/* --- UTILS ACCORDION & NEWSLETTER --- */
.premium-accordion .accordion-item {
    border-color: rgba(255, 255, 255, 0.05) !important;
}

.premium-accordion .accordion-button::after {
    filter: invert(1);
}

.input-premium {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--bg-glass-border);
    color: var(--brand-white-pure) !important;
    padding: 0.8rem 1.2rem;
    border-radius: var(--radius-sm);
}

.input-premium:focus {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--brand-green-primary);
    box-shadow: none;
}

/* --- FOOTER & INTERFACE CONVERSION --- */
.btn-back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--brand-green-primary);
    color: var(--brand-white-pure);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    z-index: var(--z-index-fixed);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-md);
}

.btn-back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.footer-links a {
    color: var(--brand-gray-muted);
    display: inline-block;
    margin-bottom: 0.5rem;
}

.footer-links a:hover {
    color: var(--brand-white-pure);
    transform: translateX(3px);
}

@keyframes spin-premium {
    to { transform: rotate(360deg); }
}