/* ==========================================================
   PREMIUM COURSES STYLES (COGNITO-SOFT)
========================================================== */

/* Smooth scrolling for anchor links */
html {
    scroll-behavior: smooth;
}

/* =========================================
   1. COURSES HERO SECTION
   ========================================= */
.courses-hero-premium {
    position: relative;
    padding: 220px 0 120px;
    background-color: var(--bg-body);
    background-image: 
        radial-gradient(circle at 50% 0%, rgba(10, 88, 202, 0.1) 0%, transparent 50%),
        linear-gradient(to bottom, rgba(0,0,0,0.03) 1px, transparent 1px),
        linear-gradient(to right, rgba(0,0,0,0.03) 1px, transparent 1px);
    background-size: 100% 100%, 40px 40px, 40px 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
body.dark-mode .courses-hero-premium {
    background-image: 
        radial-gradient(circle at 50% 0%, rgba(94, 252, 2, 0.1) 0%, transparent 60%),
        linear-gradient(to bottom, rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(to right, rgba(255,255,255,0.02) 1px, transparent 1px);
}

.hero-top-glow {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 2px;
    background: linear-gradient(90deg, transparent, var(--brand-blue), transparent);
}
body.dark-mode .hero-top-glow { background: linear-gradient(90deg, transparent, var(--flyer-neon), transparent); }

.badge-premium {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(10, 88, 202, 0.05);
    border: 1px solid rgba(10, 88, 202, 0.2);
    border-radius: 50px;
    color: var(--brand-blue);
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
}
body.dark-mode .badge-premium {
    background: rgba(94, 252, 2, 0.05);
    border-color: rgba(94, 252, 2, 0.2);
    color: var(--flyer-neon);
}
.pulse-icon { animation: pulseIcon 2s infinite; }
@keyframes pulseIcon { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

.hero-title-premium {
    font-family: 'Outfit', sans-serif;
    font-size: clamp(3.5rem, 7vw, 6rem);
    font-weight: 900;
    line-height: 1.1;
    color: var(--text-dark);
    letter-spacing: -2px;
}
body.dark-mode .hero-title-premium { color: #fff; }

.text-gradient-premium {
    background: linear-gradient(135deg, var(--brand-blue) 0%, #000 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
body.dark-mode .text-gradient-premium {
    background: linear-gradient(135deg, var(--flyer-neon) 0%, #fff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc-premium {
    font-size: clamp(1.1rem, 2vw, 1.25rem);
    color: var(--text-muted);
    max-width: 700px;
    line-height: 1.7;
}

/* =========================================
   2. COURSE SHOWCASE GRID
   ========================================= */
.courses-showcase {
    padding: 4rem 0 6rem 0;
    position: relative;
    overflow: hidden;
    background-color: transparent;
    --card-bg: rgba(255, 255, 255, 0.85);
    --card-border: rgba(15, 23, 42, 0.08);
    --card-shadow: 0 20px 50px rgba(15, 23, 42, 0.08);
    --glow-color: rgba(10, 88, 202, 0.2);
    --accent: var(--brand-blue);
}

body.dark-mode .courses-showcase {
    --card-bg: rgba(15, 23, 42, 0.6);
    --card-border: rgba(255, 255, 255, 0.05);
    --card-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
    --glow-color: rgba(94, 252, 2, 0.3);
    --accent: var(--flyer-neon);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
}

@media (max-width: 991px) {
    .courses-grid {
        grid-template-columns: 1fr;
    }
}

.course-card-premium {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    backdrop-filter: blur(20px);
    overflow: hidden;
    position: relative;
    transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 0.5s ease;
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
}

.course-card-premium::after {
    content: '';
    position: absolute;
    top: 0; left: -100%; width: 50%; height: 100%;
    background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.1) 50%, rgba(255,255,255,0) 100%);
    transform: skewX(-25deg);
    transition: left 0.7s ease;
    z-index: 3;
    pointer-events: none;
}
body.dark-mode .course-card-premium::after {
    background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.05) 50%, rgba(255,255,255,0) 100%);
}

.course-card-premium:hover {
    transform: translateY(-10px);
    border-color: var(--glow-color);
    box-shadow: 0 25px 50px var(--glow-color);
}
.course-card-premium:hover::after { left: 200%; }

.course-image-wrapper {
    width: 100%;
    height: 250px;
    position: relative;
    overflow: hidden;
    background: #0f172a;
}
.course-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(80%) contrast(1.1);
    transition: transform 0.8s ease, filter 0.8s ease;
}
.course-card-premium:hover .course-image-wrapper img {
    transform: scale(1.08);
    filter: grayscale(0%) contrast(1.05);
}

.course-badge-overlay {
    position: absolute;
    top: 20px;
    left: 20px;
    background: rgba(0,0,0,0.7);
    color: #fff;
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.1);
    z-index: 2;
}

.course-content {
    padding: 2.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.course-title {
    font-family: 'Outfit', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}
body.dark-mode .course-title { color: #fff; }

.course-desc {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    flex-grow: 1;
}

.course-features {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 2rem;
}

.feature-pill {
    padding: 6px 14px;
    background: rgba(15, 23, 42, 0.05);
    border: 1px solid var(--card-border);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 6px;
}
body.dark-mode .feature-pill {
    background: rgba(255, 255, 255, 0.05);
    color: #cbd5e1;
}
.feature-pill i { color: var(--accent); }

.course-action {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1.5rem;
    border-top: 1px solid var(--card-border);
}

.course-price {
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-dark);
}
body.dark-mode .course-price { color: #fff; }
.course-price span { font-size: 0.9rem; color: var(--text-muted); font-weight: 500; }

.btn-enroll {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: var(--accent);
    color: #000;
    border-radius: 50px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s ease;
}
body:not(.dark-mode) .btn-enroll { color: #fff; }
.btn-enroll:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px var(--glow-color);
    color: #000;
}
body:not(.dark-mode) .btn-enroll:hover { color: #fff; }

/* =========================================
   3. WHY CHOOSE SECTION
   ========================================= */
.why-course-section {
    padding: 4rem 0 6rem 0;
}

.benefit-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2.5rem;
    height: 100%;
    transition: all 0.3s ease;
}
.benefit-card:hover { transform: translateY(-5px); border-color: var(--glow-color); }

.benefit-icon {
    width: 60px; height: 60px;
    border-radius: 15px;
    background: rgba(10, 88, 202, 0.1);
    color: var(--brand-blue);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}
body.dark-mode .benefit-icon {
    background: rgba(94, 252, 2, 0.1);
    color: var(--flyer-neon);
}

.benefit-title {
    font-family: 'Outfit', sans-serif;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}
body.dark-mode .benefit-title { color: #fff; }

.benefit-desc {
    color: var(--text-muted);
    line-height: 1.6;
    margin: 0;
}