/* ============================================
   ELEKTRIUM LANDING PAGE - MODERN CSS
   ============================================ */

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --accent: #ec4899;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --light: #f8fafc;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--dark);
    color: var(--light);
    overflow-x: hidden;
}

/* ============================================
   NAVIGATION
   ============================================ */

.landing-navbar {
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.landing-navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.navbar-brand {
    font-family: 'Poppins', sans-serif;
    font-weight: 800;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.brand-badge {
    background: var(--gradient-primary);
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
    color: white;
}

.nav-link {
    color: rgba(255, 255, 255, 0.8) !important;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: white !important;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

/* ============================================
   HERO SECTION
   ============================================ */

.hero-section {
    position: relative;
    min-height: 100vh;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.floating-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.3;
    transition: transform 0.3s ease;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: var(--gradient-1);
    top: -200px;
    right: -200px;
    animation: float 20s infinite ease-in-out;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: var(--gradient-2);
    bottom: -150px;
    left: -150px;
    animation: float 25s infinite ease-in-out reverse;
}

.shape-3 {
    width: 250px;
    height: 250px;
    background: var(--gradient-3);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: float 30s infinite ease-in-out;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    25% { transform: translateY(-50px) rotate(90deg); }
    50% { transform: translateY(0px) rotate(180deg); }
    75% { transform: translateY(50px) rotate(270deg); }
}

.hero-section .container {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 3s ease infinite;
    background-size: 200% 200%;
}

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 2rem;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-buttons .btn {
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.hero-buttons .btn-primary {
    background: var(--gradient-primary);
    border: none;
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.hero-buttons .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.5);
}

.hero-buttons .btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
}

.hero-buttons .btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.stat-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-number {
    font-family: 'Poppins', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

/* 3D Cube */
.hero-3d-container {
    perspective: 1000px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 500px;
}

.cube-wrapper {
    width: 300px;
    height: 300px;
    position: relative;
}

.cube {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    animation: rotateCube 20s infinite linear;
}

@keyframes rotateCube {
    0% { transform: rotateX(0deg) rotateY(0deg); }
    100% { transform: rotateX(360deg) rotateY(360deg); }
}

.cube-face {
    position: absolute;
    width: 300px;
    height: 300px;
    background: rgba(99, 102, 241, 0.1);
    border: 2px solid rgba(99, 102, 241, 0.5);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: rgba(99, 102, 241, 0.8);
    transition: all 0.3s ease;
}

.cube-face:hover {
    background: rgba(99, 102, 241, 0.2);
    border-color: rgba(99, 102, 241, 1);
    color: rgba(99, 102, 241, 1);
}

.front  { transform: rotateY(0deg) translateZ(150px); }
.back   { transform: rotateY(180deg) translateZ(150px); }
.right  { transform: rotateY(90deg) translateZ(150px); }
.left   { transform: rotateY(-90deg) translateZ(150px); }
.top    { transform: rotateX(90deg) translateZ(150px); }
.bottom { transform: rotateX(-90deg) translateZ(150px); }

/* ============================================
   FEATURES SECTION
   ============================================ */

.features-section {
    background: linear-gradient(180deg, var(--dark) 0%, var(--dark-light) 100%);
    position: relative;
}

.section-header {
    margin-bottom: 4rem;
}

.section-title {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.6);
}

.feature-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 30px;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.4s ease;
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-10px) scale(1.02);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(99, 102, 241, 0.5);
    box-shadow: 0 20px 60px rgba(99, 102, 241, 0.2);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: rotateY(360deg) scale(1.1);
}

.feature-card h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.feature-card p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

/* ============================================
   HOW IT WORKS SECTION
   ============================================ */

.how-it-works-section {
    background: var(--dark-light);
    position: relative;
}

.step-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 30px;
    padding: 3rem;
    text-align: center;
    position: relative;
    transition: all 0.4s ease;
    height: 100%;
}

.step-card:hover {
    transform: translateY(-10px);
    border-color: rgba(99, 102, 241, 0.5);
    box-shadow: 0 20px 60px rgba(99, 102, 241, 0.2);
}

.step-number {
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Poppins', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.5);
}

.step-icon {
    width: 100px;
    height: 100px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--primary);
    margin: 2rem 0 1.5rem;
    transition: all 0.3s ease;
}

.step-card:hover .step-icon {
    background: rgba(99, 102, 241, 0.2);
    transform: scale(1.1) rotate(360deg);
}

.step-arrow {
    position: absolute;
    right: -25px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 3rem;
    color: var(--primary);
    opacity: 0.3;
}

@media (max-width: 992px) {
    .step-arrow {
        display: none;
    }
}

.step-card h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.step-card p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

/* ============================================
   CTA SECTION
   ============================================ */

.cta-section {
    background: var(--dark);
    padding: 6rem 0;
}

.cta-card {
    background: var(--gradient-primary);
    border-radius: 40px;
    padding: 4rem;
    position: relative;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.cta-shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    filter: blur(40px);
}

.cta-shape-1 {
    width: 300px;
    height: 300px;
    top: -150px;
    right: -150px;
    animation: float 15s infinite ease-in-out;
}

.cta-shape-2 {
    width: 200px;
    height: 200px;
    bottom: -100px;
    left: -100px;
    animation: float 20s infinite ease-in-out reverse;
}

.cta-card .row {
    position: relative;
    z-index: 1;
}

.cta-title {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 1rem;
}

.cta-text {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 0;
}

.cta-card .btn-light {
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 700;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.cta-card .btn-light:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

/* ============================================
   FOOTER
   ============================================ */

.landing-footer {
    background: var(--dark);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 1.5rem;
}

.footer-text {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-stats {
        flex-direction: column;
    }
    
    .stat-item {
        width: 100%;
    }
    
    .cube-wrapper {
        width: 200px;
        height: 200px;
    }
    
    .cube-face {
        width: 200px;
        height: 200px;
        font-size: 2.5rem;
    }
    
    .front, .back { transform: rotateY(0deg) translateZ(100px); }
    .right { transform: rotateY(90deg) translateZ(100px); }
    .left { transform: rotateY(-90deg) translateZ(100px); }
    .top { transform: rotateX(90deg) translateZ(100px); }
    .bottom { transform: rotateX(-90deg) translateZ(100px); }
    
    .cta-card {
        padding: 2rem;
    }
    
    .cta-title {
        font-size: 1.5rem;
    }
    
    .cta-text {
        font-size: 1rem;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

.glass {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

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

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}