/*====================================================
 * Modern Portfolio - Glassmorphism + Bento Grid Style
 * Custom CSS for bintangmfhd.com
 *====================================================*/

/* ==================== 
   1. MODERN COLOR SCHEME & VARIABLES 
   ==================== */
:root {
    /* Gradient Colors */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-success: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --gradient-dark: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
    --gradient-purple: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    --glass-blur: blur(10px);
    
    /* Modern Colors */
    --primary-purple: #667eea;
    --primary-pink: #f5576c;
    --primary-cyan: #00f2fe;
    --dark-bg: #0a0a0f;
    --dark-secondary: #16161d;
    --dark-card: #1a1a24;
    
    /* Spacing */
    --section-padding: 120px;
    --card-radius: 24px;
}

/* ==================== 
   2. GLOBAL STYLES 
   ==================== */
body {
    background: var(--dark-bg);
    background-image: 
        radial-gradient(at 0% 0%, rgba(102, 126, 234, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(245, 87, 108, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(0, 242, 254, 0.1) 0px, transparent 50%),
        radial-gradient(at 0% 100%, rgba(118, 75, 162, 0.1) 0px, transparent 50%);
    overflow-x: hidden;
}

/* Smooth scroll */
html {
    scroll-behavior: smooth;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--dark-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gradient-secondary);
}

/* ==================== 
   3. MODERN HEADER / NAVBAR
   ==================== */
.kayden-header {
    background: var(--glass-bg) !important;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.kayden-header:hover {
    background: rgba(255, 255, 255, 0.08) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.kayden-menu-toggler .kayden-toggler {
    position: relative;
    overflow: hidden;
}

.kayden-menu-toggler .kayden-toggler::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: all 0.5s ease;
    z-index: -1;
}

.kayden-menu-toggler .kayden-toggler:hover::before {
    left: 0;
    opacity: 0.2;
}

/* ==================== 
   4. HERO SECTION - MODERN SPLIT SCREEN
   ==================== */
#home {
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

#home::before {
    content: '';
    position: absolute;
    width: 800px;
    height: 800px;
    background: var(--gradient-purple);
    opacity: 0.1;
    border-radius: 50%;
    top: -200px;
    right: -200px;
    filter: blur(100px);
    animation: float 20s ease-in-out infinite;
}

#home::after {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: var(--gradient-secondary);
    opacity: 0.08;
    border-radius: 50%;
    bottom: -150px;
    left: -150px;
    filter: blur(100px);
    animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    50% {
        transform: translate(30px, -30px) scale(1.1);
    }
}

/* Hero Image with Glassmorphism Border */
.about-image {
    position: relative;
}

.about-image::before {
    content: '';
    position: absolute;
    inset: -5px;
    background: var(--gradient-primary);
    border-radius: 30px;
    opacity: 0.3;
    filter: blur(20px);
    z-index: -1;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.02);
    }
}

.about-image img {
    border-radius: 30px !important;
    border: 2px solid var(--glass-border);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.about-image img:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 80px rgba(102, 126, 234, 0.3);
}

/* Hero Text with Gradient */
.welcome_text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700 !important;
    font-size: 1.8rem !important;
}

.home h1 {
    font-size: 4rem !important;
    font-weight: 800 !important;
    background: linear-gradient(135deg, #ffffff 0%, #a8a8a8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -2px;
}

/* Modern Button */
.btn-primary {
    background: var(--gradient-primary) !important;
    border: none !important;
    padding: 15px 40px !important;
    border-radius: 50px !important;
    font-weight: 600 !important;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.6);
}

.btn-outline-primary {
    border: 2px solid var(--primary-purple) !important;
    color: var(--primary-purple) !important;
    background: transparent !important;
    padding: 15px 40px !important;
    border-radius: 50px !important;
    font-weight: 600 !important;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-outline-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0%;
    height: 100%;
    background: var(--gradient-primary);
    transition: width 0.4s;
    z-index: -1;
}

.btn-outline-primary:hover {
    color: white !important;
    border-color: transparent !important;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

.btn-outline-primary:hover::before {
    width: 100%;
}

/* ==================== 
   5. GLASSMORPHIC CARDS
   ==================== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: var(--card-radius);
    border: 1px solid var(--glass-border);
    padding: 30px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

.glass-card:hover::before {
    left: 100%;
}

.glass-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

/* ==================== 
   6. ABOUT SECTION - BENTO GRID
   ==================== */
#about {
    padding: var(--section-padding) 0;
    position: relative;
}

.about-details h1 {
    font-size: 3rem !important;
    font-weight: 800 !important;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
}

/* Social Links Modern */
.social-links li a {
    width: 50px;
    height: 50px;
    border-radius: 15px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.social-links li a::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s;
}

.social-links li a:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.5);
}

.social-links li a:hover::before {
    opacity: 1;
}

.social-links li a i {
    position: relative;
    z-index: 1;
    font-size: 1.2rem;
}

/* Skills with Modern Progress Bars */
.skills_container {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border-radius: var(--card-radius);
    border: 1px solid var(--glass-border);
    padding: 40px;
}

.skills_container h2 {
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.progress {
    height: 10px !important;
    background: var(--dark-card) !important;
    border-radius: 10px !important;
    overflow: visible !important;
    box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.5);
}

.progress-bar {
    background: var(--gradient-primary) !important;
    border-radius: 10px !important;
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
    position: relative;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

/* Stats/Facts with Gradient Background */
.fact {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    padding: 40px 20px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    min-height: 180px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.fact::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 0;
}

.fact:hover::before {
    opacity: 0.1;
}

.fact:hover {
    transform: translateY(-10px);
    border: 1px solid rgba(102, 126, 234, 0.5);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.3);
}

.fact h3 {
    position: relative;
    z-index: 1;
    font-size: 3rem !important;
    font-weight: 800 !important;
    line-height: 1 !important;
    margin-bottom: 15px !important;
    color: #fff;
}

.fact h3 .tmcounter {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

/* Tanda + di stats cards */
.fact h3 .plus-sign {
    font-size: 1.5rem;
    font-weight: 700;
    margin-left: 2px;
    color: #00f2fe;
    vertical-align: super;
    position: relative;
    top: -0.4em;
    line-height: 1;
    display: inline-block;
}

.fact p {
    position: relative;
    z-index: 1;
    font-size: 0.95rem !important;
    line-height: 1.4 !important;
    margin: 0 !important;
    max-width: 150px;
}

/* ==================== 
   7. SERVICES/TECH SECTION
   ==================== */
#services {
    padding: var(--section-padding) 0;
}

.heading h2 {
    font-size: 3rem !important;
    font-weight: 800 !important;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
    display: inline-block;
}

.heading h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 0;
    width: 100px;
    height: 5px;
    background: var(--gradient-primary);
    border-radius: 10px;
}

/* Gradient Grid Modern */
.kayden-gradient-grid .col-lg-4 > div {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    margin: 10px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.kayden-gradient-grid .col-lg-4 > div::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.4s;
}

.kayden-gradient-grid .col-lg-4 > div:hover::before {
    opacity: 0.1;
}

.kayden-gradient-grid .col-lg-4 > div:hover {
    transform: translateY(-15px);
    border: 1px solid rgba(102, 126, 234, 0.5);
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.3);
}

.kayden-gradient-grid .fs-3 {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 2.5rem !important;
}

.kayden-gradient-grid h4 {
    font-weight: 700;
    color: white;
    position: relative;
    z-index: 1;
}

.kayden-gradient-grid p {
    position: relative;
    z-index: 1;
}

/* ==================== 
   8. PORTFOLIO - BENTO GRID STYLE
   ==================== */
#portfolio {
    padding: var(--section-padding) 0;
}

.portfolio-item {
    display: block;
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
}

.portfolio-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.4s;
    z-index: 1;
    pointer-events: none;
}

.portfolio-item:hover::before {
    opacity: 0.2;
}

.portfolio-item:hover {
    transform: translateY(-15px);
    border: 1px solid rgba(102, 126, 234, 0.5);
    box-shadow: 0 25px 70px rgba(102, 126, 234, 0.4);
}

.portfolio-thumbnail {
    position: relative;
    overflow: hidden;
    border-radius: 20px 20px 0 0;
}

.portfolio-thumbnail img {
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.portfolio-item:hover .portfolio-thumbnail img {
    transform: scale(1.1);
    filter: brightness(0.8);
}

.portfolio-description {
    padding: 20px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    position: relative;
    z-index: 2;
}

.portfolio-description h3 {
    background: linear-gradient(135deg, #ffffff 0%, #667eea 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700 !important;
}

/* Load More Button */
#loadMore {
    background: var(--glass-bg) !important;
    backdrop-filter: var(--glass-blur) !important;
    border: 2px solid var(--glass-border) !important;
    border-radius: 50px !important;
    padding: 15px 40px !important;
    font-weight: 600 !important;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    margin: 50px auto 0 !important;
    display: block !important;
}

#loadMore:hover {
    background: var(--gradient-primary) !important;
    border-color: transparent !important;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

/* ==================== 
   9. TABLES (EDUCATION & AWARDEE)
   ==================== */
.table {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border-radius: var(--card-radius);
    overflow: hidden;
    border: 1px solid var(--glass-border);
}

.table tbody tr {
    border-bottom: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.table tbody tr:hover {
    background: rgba(102, 126, 234, 0.1);
}

.table tbody tr td {
    padding: 30px 20px;
    vertical-align: middle;
}

/* ==================== 
   10. PARTNERS SECTION
   ==================== */
#partners {
    padding: var(--section-padding) 0;
}

#partners .row {
    row-gap: 1.5rem !important;
    column-gap: 1.5rem !important;
}

/* ============================================
   PARTNERS SECTION - CLEAN & SIMPLE 
   ============================================ */
   
/* Partner card container */
.partner-card {
    background: none;
    border: none;
    padding: 0;
    margin: 0;
}

/* Partner logo - NO CSS here, handled by inline styles in HTML */
.partner-logo {
    /* All styling in inline HTML */
}

/* All partner styling and hover effects handled by inline styles + JavaScript */

/* ==================== 
   11. CONTACT SECTION
   ==================== */
#contact {
    padding: var(--section-padding) 0;
}

.contact-details {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border-radius: 15px;
    border: 1px solid var(--glass-border);
    padding: 20px 30px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-details:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(10px);
    border: 1px solid rgba(102, 126, 234, 0.5);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.2);
}

.contact-details .cd-icon {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Modern Form Inputs */
.form-control {
    background: var(--glass-bg) !important;
    backdrop-filter: var(--glass-blur) !important;
    border: 1px solid var(--glass-border) !important;
    border-radius: 15px !important;
    padding: 15px 20px !important;
    color: white !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-control:focus {
    background: rgba(255, 255, 255, 0.08) !important;
    border: 1px solid var(--primary-purple) !important;
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.3) !important;
    outline: none;
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.5) !important;
}

/* ==================== 
   12. SCROLL DOWN ANIMATION
   ==================== */
.scroll-down {
    z-index: 10;
}

.scroll-mouse {
    border: 2px solid var(--primary-purple);
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
}

.scroll-mouse .whell {
    background: var(--gradient-primary);
    box-shadow: 0 0 10px rgba(102, 126, 234, 0.8);
}

/* ==================== 
   13. PRELOADER
   ==================== */
.kayden-preloader {
    background: var(--dark-bg);
}

/* ==================== 
   14. RESPONSIVE ADJUSTMENTS
   ==================== */
@media (max-width: 768px) {
    :root {
        --section-padding: 80px;
        --card-radius: 16px;
    }
    
    .home h1 {
        font-size: 2.5rem !important;
    }
    
    .about-details h1 {
        font-size: 2rem !important;
    }
    
    .heading h2 {
        font-size: 2rem !important;
    }
    
    .btn-primary, .btn-outline-primary {
        padding: 12px 30px !important;
        font-size: 0.9rem !important;
    }
}

/* ==================== 
   15. FOOTER
   ==================== */
footer {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border-top: 1px solid var(--glass-border);
    padding: 40px 0;
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.5), transparent);
}

footer p, footer a {
    transition: all 0.3s ease;
}

footer a:hover {
    color: var(--primary-purple) !important;
    transform: translateX(5px);
}

/* ==================== 
   16. TO TOP BUTTON
   ==================== */
.to-top {
    background: var(--glass-bg) !important;
    backdrop-filter: var(--glass-blur) !important;
    border: 2px solid var(--glass-border) !important;
    box-shadow: var(--glass-shadow);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.to-top:hover {
    background: var(--gradient-primary) !important;
    border-color: transparent !important;
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.5);
}

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

.to-top:hover i {
    background: white;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==================== 
   17. OFF CANVAS MENU
   ==================== */
.offcanvas {
    background: var(--dark-card) !important;
    backdrop-filter: var(--glass-blur);
    border-left: 1px solid var(--glass-border) !important;
}

.offcanvas-header {
    border-bottom: 1px solid var(--glass-border);
}

.offcanvas-body ul li a {
    transition: all 0.3s ease;
    position: relative;
    padding-left: 20px;
}

.offcanvas-body ul li a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.offcanvas-body ul li a:hover::before,
.offcanvas-body ul li a.active::before {
    width: 10px;
}

.offcanvas-body ul li a:hover {
    color: var(--primary-purple) !important;
    padding-left: 25px;
}

/* ==================== 
   18. UTILITIES
   ==================== */
.text-gradient-primary {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

/* Smooth entrance animations */
[data-aos] {
    pointer-events: auto;
}

/* Make sections have better spacing */
section {
    position: relative;
    padding: 100px 0;
}

/* Secondary sections background */
.secondary-section {
    background: rgba(255, 255, 255, 0.02);
    position: relative;
}

.secondary-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.3), transparent);
}

/* ==================== 
   19. LOADING STATES & MICRO-INTERACTIONS
   ==================== */
.btn {
    position: relative;
    overflow: hidden;
    transform: translateZ(0);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn:active {
    transform: scale(0.95);
}

/* Link hover effect */
a {
    transition: all 0.3s ease;
}

/* Image loading state */
img {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

img[loading="lazy"] {
    opacity: 0;
    animation: fadeInImage 0.5s ease forwards;
}

@keyframes fadeInImage {
    to {
        opacity: 1;
    }
}

/* Smooth focus states */
input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-purple) !important;
}

/* ==================== 
   20. CUSTOM CURSOR EFFECTS (OPTIONAL)
   ==================== */
@media (min-width: 1024px) {
    .portfolio-item,
    .btn,
    a {
        cursor: pointer;
    }
}

/* ==================== 
   21. PERFORMANCE OPTIMIZATIONS
   ==================== */
* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img,
video {
    max-width: 100%;
    height: auto;
}

/* GPU Acceleration for animations */
.glass-card,
.portfolio-item,
.fact,
.btn {
    will-change: transform;
}

/* ==================== 
   22. PRINT STYLES
   ==================== */
@media print {
    .kayden-header,
    .scroll-down,
    .to-top,
    footer {
        display: none;
    }
    
    section {
        page-break-inside: avoid;
    }
}