/* ==========================================================================
   Kodrat Rwan - Modern Landing Page Stylesheet
   Luxury Sky Blue & iOS-Inspired Aesthetics
   ========================================================================== */

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 72px;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    z-index: 1000;
    transition: var(--transition-fast);
}

.navbar.scrolled {
    height: 64px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-link {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-muted);
    position: relative;
    padding: 6px 2px;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition-fast);
    border-radius: 2px;
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    padding: 8px;
    border-radius: var(--radius-sm);
}

.nav-mobile-toggle span {
    display: block;
    width: 22px;
    height: 2.5px;
    background: var(--dark-800);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* Mobile Slide Menu */
.mobile-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border-light);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
    z-index: 999;
    box-shadow: 0 20px 30px rgba(0, 0, 0, 0.08);
}

.mobile-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.mobile-link {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--dark-800);
    padding: 10px 14px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.mobile-link:hover {
    background: var(--primary-light);
    color: var(--primary);
}

/* Hero Section */
.hero {
    position: relative;
    padding: 140px 0 80px;
    background: radial-gradient(circle at 80% 20%, rgba(56, 189, 248, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 10% 80%, rgba(2, 132, 199, 0.1) 0%, transparent 45%),
                var(--bg-page);
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 40px;
    align-items: center;
}

.hero-badge-wrap {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: var(--radius-pill);
    background: rgba(224, 242, 254, 0.8);
    border: 1px solid rgba(56, 189, 248, 0.4);
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(2, 132, 199, 0.08);
}

.hero-badge-wrap .pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 8px var(--primary);
    animation: pulseGlow 1.8s infinite;
}

.hero-title {
    font-size: 3rem;
    font-weight: 900;
    color: var(--dark-900);
    line-height: 1.25;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.hero-title .gradient-text {
    background: linear-gradient(135deg, #0284C7 0%, #38BDF8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    font-size: 1.15rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 32px;
    max-width: 580px;
}

.hero-btns {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.hero-stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    padding-top: 24px;
    border-top: 1px solid var(--border-light);
}

.hero-stat-item {
    display: flex;
    flex-direction: column;
}

.hero-stat-val {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--dark-900);
}

.hero-stat-lbl {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
}

/* Hero Visual / Card */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-card-container {
    position: relative;
    width: 100%;
    max-width: 420px;
    background: linear-gradient(145deg, #ffffff, #f0f9ff);
    border-radius: var(--radius-xl);
    padding: 30px;
    box-shadow: 0 25px 50px -12px rgba(2, 132, 199, 0.2), 0 0 0 1px rgba(56, 189, 248, 0.3);
    overflow: hidden;
}

.hero-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.hero-teacher-badge {
    display: flex;
    align-items: center;
    gap: 12px;
}

.hero-teacher-avatar {
    width: 50px;
    height: 50px;
    border-radius: 14px;
    background: var(--primary-light);
    border: 2px solid var(--sky-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.hero-exam-progress {
    background: #ffffff;
    border-radius: var(--radius-md);
    padding: 16px;
    border: 1px solid var(--border-light);
    margin-bottom: 16px;
}

.progress-bar-wrap {
    height: 8px;
    background: #E2E8F0;
    border-radius: 4px;
    overflow: hidden;
    margin: 8px 0;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #38BDF8, #0284C7);
    border-radius: 4px;
}

.hero-floating-chip {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: var(--radius-md);
    padding: 10px 16px;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 0.85rem;
    animation: floatSlow 4s ease-in-out infinite;
}

.hero-floating-chip.top-left {
    top: -15px;
    left: -15px;
}

.hero-floating-chip.bottom-right {
    bottom: -15px;
    right: -15px;
    animation-delay: 2s;
}

/* Section Common */
.section {
    padding: 90px 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 50px;
}

.section-tag {
    display: inline-block;
    padding: 4px 14px;
    border-radius: var(--radius-pill);
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--dark-900);
    margin-bottom: 14px;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ==========================================================================
   Section: Popular Courses (الدورات الأكثر طلباً)
   ========================================================================== */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 28px;
}

.course-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    position: relative;
}

.course-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 30px -10px rgba(2, 132, 199, 0.15);
    border-color: rgba(56, 189, 248, 0.5);
}

.course-banner {
    height: 160px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: #fff;
    overflow: hidden;
}

.course-banner.quant {
    background: linear-gradient(135deg, #0284C7 0%, #0369A1 100%);
}

.course-banner.verbal {
    background: linear-gradient(135deg, #0EA5E9 0%, #0284C7 100%);
}

.course-banner.comprehensive {
    background: linear-gradient(135deg, #0369A1 0%, #0F172A 100%);
}

.course-banner.tests {
    background: linear-gradient(135deg, #38BDF8 0%, #0284C7 100%);
}

.course-badge {
    position: absolute;
    top: 14px;
    right: 14px;
    background: rgba(255, 255, 255, 0.95);
    color: var(--primary);
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: 700;
    box-shadow: var(--shadow-xs);
}

.course-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.course-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.course-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--dark-900);
}

.course-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 18px;
    line-height: 1.6;
}

.course-features-list {
    list-style: none;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.course-features-list li {
    font-size: 0.85rem;
    color: var(--dark-700);
    display: flex;
    align-items: center;
    gap: 8px;
}

.course-features-list li .check-icon {
    color: var(--success);
    font-weight: bold;
}

.course-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
    margin-top: auto;
}

.course-price-wrap {
    display: flex;
    flex-direction: column;
}

.course-price-current {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--primary);
}

.course-price-old {
    font-size: 0.8rem;
    color: var(--text-light);
    text-decoration: line-through;
}

/* ==========================================================================
   Section: Mobile App Showcase (قريباً تطبيق الهاتف)
   ========================================================================== */
.app-showcase-section {
    background: linear-gradient(180deg, var(--bg-page) 0%, #F0F9FF 50%, var(--bg-page) 100%);
    position: relative;
    overflow: hidden;
}

.app-showcase-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.app-mockup-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.app-glow-circle {
    position: absolute;
    width: 480px;
    height: 480px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.4) 0%, rgba(2, 132, 199, 0.1) 60%, transparent 80%);
    filter: blur(40px);
    z-index: 1;
}

.app-phone-img {
    position: relative;
    max-width: 340px;
    width: 100%;
    height: auto;
    z-index: 2;
    filter: drop-shadow(0 25px 35px rgba(2, 132, 199, 0.25));
    animation: floatSlow 5s ease-in-out infinite;
    transition: var(--transition-smooth);
}

.app-phone-img:hover {
    transform: scale(1.03) rotate(-1deg);
}

.app-feature-badges {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin: 28px 0;
}

.app-feature-pill {
    display: flex;
    align-items: center;
    gap: 14px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: var(--radius-md);
    padding: 12px 18px;
    box-shadow: var(--shadow-xs);
    transition: var(--transition-fast);
}

.app-feature-pill:hover {
    border-color: var(--primary);
    transform: translateX(-4px);
    box-shadow: var(--shadow-sm);
}

.app-feature-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.app-store-btns {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 24px;
}

.store-badge-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--dark-900);
    color: #fff;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-family: var(--font-heading);
    font-size: 0.9rem;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.store-badge-btn:hover {
    background: var(--dark-800);
    border-color: var(--sky-accent);
    transform: translateY(-2px);
}

.store-badge-btn svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.feature-box {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 30px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

.feature-box:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(56, 189, 248, 0.5);
}

.feature-icon-wrap {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
}

/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.testimonial-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 26px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.testimonial-score-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #ECFDF5;
    color: #059669;
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    font-weight: 800;
    font-size: 0.85rem;
}

.testimonial-text {
    font-size: 0.95rem;
    color: var(--dark-700);
    margin: 16px 0;
    line-height: 1.7;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 14px;
    border-top: 1px solid var(--border-light);
}

.author-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

/* FAQs Accordion */
.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.faq-item {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    overflow: hidden;
    transition: var(--transition-fast);
}

.faq-question {
    width: 100%;
    padding: 18px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: transparent;
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--dark-900);
    text-align: right;
}

.faq-arrow {
    transition: transform 0.3s ease;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.faq-item.active .faq-arrow {
    transform: rotate(180deg);
    color: var(--primary);
}

.faq-answer {
    padding: 0 24px 20px;
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

/* Footer */
.footer {
    background: var(--dark-900);
    color: #94A3B8;
    padding: 70px 0 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-title {
    color: #fff;
    font-size: 1.1rem;
    margin-bottom: 18px;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a:hover {
    color: var(--sky-accent);
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
    flex-wrap: wrap;
    gap: 14px;
}

/* iOS Mobile Floating Navigation Bar */
.ios-mobile-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-top: 1px solid rgba(226, 232, 240, 0.8);
    z-index: 999;
    padding: 0 16px;
    padding-bottom: env(safe-area-inset-bottom);
    justify-content: space-around;
    align-items: center;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.05);
}

.ios-bar-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    color: var(--text-muted);
    font-size: 0.7rem;
    font-weight: 600;
}

.ios-bar-item.active, .ios-bar-item:hover {
    color: var(--primary);
}

.ios-bar-item .bar-icon {
    font-size: 1.25rem;
}

/* Responsive Media Queries - Ultra Modern Mobile 2026 */
@media (max-width: 1024px) {
    .hero-grid, .app-showcase-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }
    .hero-btns {
        justify-content: center;
    }
    .hero-stats-row {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links, .nav-actions .btn {
        display: none !important;
    }
    .nav-mobile-toggle {
        display: flex !important;
    }
    .nav-actions {
        gap: 8px;
    }
    .hero {
        padding: 96px 0 40px;
    }
    .hero-title {
        font-size: 2rem;
        line-height: 1.25;
    }
    .hero-desc {
        font-size: 0.98rem;
        margin-bottom: 24px;
    }
    .hero-btns {
        flex-direction: column;
        width: 100%;
        gap: 12px;
    }
    .hero-btns .btn {
        width: 100%;
        justify-content: center;
        padding: 13px 20px;
    }
    .section-title {
        font-size: 1.75rem;
    }
    .section-desc {
        font-size: 0.95rem;
    }
    .courses-grid {
        grid-template-columns: 1fr !important;
        gap: 18px;
    }
    .app-glow-circle {
        width: 100%;
        max-width: 300px;
        height: 300px;
    }
    .iphone-device {
        width: 280px !important;
        height: 520px !important;
        border-radius: 44px !important;
    }
    .iphone-screen {
        border-radius: 36px !important;
        padding: 28px 14px 20px !important;
    }
    .phone-soon-text {
        font-size: 1.4rem;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .ios-mobile-bar {
        display: flex;
    }
    body {
        padding-bottom: 74px;
    }
}

@media (max-width: 480px) {
    .container {
        padding-left: 16px;
        padding-right: 16px;
    }
    .hero-title {
        font-size: 1.75rem;
    }
    .hero-stats-row {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
        padding-top: 18px;
    }
    .hero-stat-item {
        background: #FFFFFF;
        padding: 12px 14px;
        border-radius: 14px;
        border: 1px solid #E2E8F0;
        box-shadow: 0 2px 8px rgba(0,0,0,0.03);
    }
    .hero-stat-val {
        font-size: 1.35rem;
    }
    .hero-stat-lbl {
        font-size: 0.72rem;
    }
    .store-badge-btn {
        width: 100%;
        justify-content: center;
    }
    .course-card {
        border-radius: 14px;
    }
}

/* ==========================================================================
   Smooth 60fps Micro-Animations for Landing Page
   ========================================================================== */

/* 3D iPhone Floating Animation */
.iphone-device {
    animation: floatIPhone 5s ease-in-out infinite;
}

@keyframes floatIPhone {
    0%, 100% {
        transform: translateY(0px) rotate(-2deg);
    }
    50% {
        transform: translateY(-12px) rotate(-0.5deg);
    }
}

/* Floating Hero Chips */
.hero-floating-chip.top-left {
    animation: floatChipA 4.5s ease-in-out infinite;
}

.hero-floating-chip.bottom-right {
    animation: floatChipB 4s ease-in-out infinite;
}

@keyframes floatChipA {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-8px) scale(1.02); }
}

@keyframes floatChipB {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-7px) scale(0.99); }
}

/* Primary CTA Button Shimmer Effect */
.btn-primary {
    position: relative;
    overflow: hidden;
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -60%;
    width: 40%;
    height: 200%;
    background: linear-gradient(
        60deg,
        rgba(255, 255, 255, 0) 20%,
        rgba(255, 255, 255, 0.35) 50%,
        rgba(255, 255, 255, 0) 80%
    );
    transform: rotate(25deg);
    animation: btnShimmer 4.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

@keyframes btnShimmer {
    0% { left: -60%; }
    25%, 100% { left: 140%; }
}

/* Pulse Dot Glow */
.pulse-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #10B981;
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    animation: pulseRing 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulseRing {
    0% {
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    }
    70% {
        box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

/* Scroll Reveal Classes */
.scroll-reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* Testimonial & Card Interactive Hover */
.testimonial-card, .app-feature-pill, .empty-courses-card {
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.testimonial-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 35px -10px rgba(2, 132, 199, 0.12);
    border-color: #BAE6FD;
}

.app-feature-pill:hover {
    transform: translateX(-4px);
    background: var(--primary-subtle);
}

/* FAQ Item smooth expand */
.faq-item {
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-item.active {
    border-color: var(--primary);
    box-shadow: 0 8px 20px rgba(2, 132, 199, 0.08);
}