/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 2rem;
}

h4 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
    color: #666;
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
    background: transparent;
    color: #667eea;
    border: 2px solid #667eea;
}

.btn-secondary:hover {
    background: #667eea;
    color: white;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #4a90a4 0%, #5a67d8 25%, #9f7aea 50%, #d53f8c 75%, #e53e3e 100%) !important;
    z-index: 1000;
    padding: 1rem 0 1rem 0;
    padding-bottom: 20px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Option 7: Liquid Metal */
.logo-circle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.4rem;
    color: white;
    border: none;
    box-shadow: 
        inset 0 0 20px rgba(255, 255, 255, 0.3),
        inset 0 -10px 20px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
}

.logo-circle::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -100%;
    width: 200%;
    height: 200%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: liquidShine 2s ease-in-out infinite;
}

@keyframes liquidShine {
    0% { left: -100%; }
    100% { left: 100%; }
}

.logo-circle:hover {
    animation-duration: 0.5s;
    transform: scale(1.15) rotate(360deg);
    box-shadow: 
        0 0 20px #ff00ff,
        0 0 30px #ff00ff,
        0 0 40px #ff00ff;
}

/* ========== ALTERNATIVE LOGO OPTIONS ========== */

/* Option 2: Holographic Effect - Replace .logo-circle with this */
/*
.logo-circle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(45deg, #667eea, #764ba2, #f093fb, #f5576c, #4facfe, #00f2fe);
    background-size: 300% 300%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.4rem;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
    backdrop-filter: blur(4px);
    transition: all 0.3s ease;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    animation: holographicShift 3s ease-in-out infinite;
}

@keyframes holographicShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
*/

/* Option 3: Fire Effect - Replace .logo-circle with this */
/*
.logo-circle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: radial-gradient(circle, #ff4500, #ff6347, #ff8c00, #ffd700);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.4rem;
    color: white;
    border: 2px solid #ff4500;
    box-shadow: 
        0 0 20px #ff4500,
        0 0 40px #ff6347,
        inset 0 0 20px rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    letter-spacing: -0.5px;
    text-shadow: 0 0 10px #ff4500;
    animation: fireFlicker 1.5s ease-in-out infinite alternate;
}

@keyframes fireFlicker {
    0% { 
        box-shadow: 0 0 20px #ff4500, 0 0 40px #ff6347, inset 0 0 20px rgba(255, 255, 255, 0.1);
        transform: scale(1);
    }
    100% { 
        box-shadow: 0 0 30px #ff6347, 0 0 50px #ff8c00, inset 0 0 30px rgba(255, 255, 255, 0.2);
        transform: scale(1.05);
    }
}
*/

/* Option 4: Galaxy Effect - Replace .logo-circle with this */
/*
.logo-circle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: radial-gradient(ellipse at center, #1a1a2e 0%, #16213e 25%, #0f3460 50%, #533483 75%, #e94560 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.4rem;
    color: #ffffff;
    border: 2px solid #533483;
    box-shadow: 
        0 0 15px #533483,
        0 0 30px #e94560,
        inset 0 0 15px rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    letter-spacing: -0.5px;
    text-shadow: 0 0 15px #e94560;
    position: relative;
    overflow: hidden;
}

.logo-circle::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: galaxyRotate 2s linear infinite;
}

@keyframes galaxyRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
*/

/* Option 5: Electric Blue - Replace .logo-circle with this */
/*
.logo-circle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.4rem;
    color: white;
    border: none;
    box-shadow: 
        0 0 40px #0099cc,
        0 4px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    letter-spacing: -0.5px;
    text-shadow: 0 0 10px #8a2be2;
    animation: electricPulse 1.8s ease-in-out infinite;
}

@keyframes electricPulse {
    0%, 100% { 
        border-color: #8a2be2;
        box-shadow: 0 0 20px #8a2be2, 0 0 40px #0099cc, 0 4px 15px rgba(0, 0, 0, 0.3);
    }
    50% { 
        border-color: #00ffff;
        box-shadow: 0 0 30px #00ffff, 0 0 50px #8a2be2, 0 4px 20px rgba(0, 0, 0, 0.4);
    }
}
*/

/* Option 6: Rainbow Prism - Replace .logo-circle with this */
/*
.logo-circle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: conic-gradient(from 0deg, #ff0000, #ff8000, #ffff00, #80ff00, #00ff00, #00ff80, #00ffff, #0080ff, #0000ff, #8000ff, #ff00ff, #ff0080, #ff0000);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.4rem;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.8);
    box-shadow: 
        0 0 25px rgba(255, 255, 255, 0.5),
        inset 0 0 20px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    letter-spacing: -0.5px;
    text-shadow: 0 0 15px rgba(0, 0, 0, 0.8), 0 2px 4px rgba(0, 0, 0, 0.5);
    animation: rainbowSpin 3s linear infinite;
}

@keyframes rainbowSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
*/

/* Option 7: Liquid Metal - Replace .logo-circle with this */
/*
.logo-circle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.4rem;
    color: white;
    border: none;
    box-shadow: 
        inset 0 0 20px rgba(255, 255, 255, 0.3),
        inset 0 -10px 20px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
}

.logo-circle::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -100%;
    width: 200%;
    height: 200%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: liquidShine 2s ease-in-out infinite;
}

@keyframes liquidShine {
    0% { left: -100%; }
    100% { left: 100%; }
}
*/

/* Option 8: Cosmic Energy - Replace .logo-circle with this */
/*
.logo-circle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #ff006e, #8338ec, #3a86ff, #06ffa5, #ffbe0b);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.4rem;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.6);
    box-shadow: 
        0 0 30px rgba(255, 0, 110, 0.6),
        0 0 50px rgba(131, 56, 236, 0.4),
        0 0 70px rgba(58, 134, 255, 0.3);
    transition: all 0.3s ease;
    letter-spacing: -0.5px;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.8);
    animation: cosmicPulse 2.5s ease-in-out infinite;
    position: relative;
}

.logo-circle::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border-radius: 50%;
    background: conic-gradient(from 0deg, #ff006e, #8338ec, #3a86ff, #06ffa5, #ffbe0b, #ff006e);
    z-index: -1;
    animation: cosmicRotate 4s linear infinite;
}

@keyframes cosmicPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes cosmicRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
*/

/* Option 9: Neon Synthwave - Replace .logo-circle with this */
/*
.logo-circle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ff0080 0%, #ff8c00 25%, #00ff41 50%, #0080ff 75%, #8000ff 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.4rem;
    color: white;
    border: 3px solid #ff0080;
    box-shadow: 
        0 0 20px #ff0080,
        0 0 40px #ff8c00,
        0 0 60px #00ff41,
        inset 0 0 20px rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    letter-spacing: -0.5px;
    text-shadow: 
        0 0 10px #ff0080,
        0 0 20px #ff8c00,
        0 0 30px #00ff41;
    animation: synthwaveGlow 1.5s ease-in-out infinite alternate;
}

@keyframes synthwaveGlow {
    0% {
        border-color: #ff0080;
        box-shadow: 0 0 20px #ff0080, 0 0 40px #ff8c00, 0 0 60px #00ff41, inset 0 0 20px rgba(255, 255, 255, 0.1);
    }
    100% {
        border-color: #8000ff;
        box-shadow: 0 0 30px #8000ff, 0 0 50px #0080ff, 0 0 70px #00ff41, inset 0 0 30px rgba(255, 255, 255, 0.2);
    }
}
*/

/* Option 10: Diamond Sparkle - Replace .logo-circle with this */
/*
.logo-circle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(45deg, #ffffff 0%, #e6e6fa 25%, #dda0dd 50%, #da70d6 75%, #ff69b4 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.4rem;
    color: #4b0082;
    border: 2px solid #ff69b4;
    box-shadow: 
        0 0 25px rgba(255, 105, 180, 0.8),
        inset 0 0 25px rgba(255, 255, 255, 0.5),
        0 4px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 4px rgba(75, 0, 130, 0.5);
    position: relative;
    overflow: hidden;
}

.logo-circle::before {
    content: '';
    position: absolute;
    top: 10%;
    left: 10%;
    width: 80%;
    height: 80%;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.8), transparent 50%);
    animation: diamondSparkle 2s ease-in-out infinite;
}

@keyframes diamondSparkle {
    0%, 100% { opacity: 0.3; transform: scale(0.8); }
    50% { opacity: 1; transform: scale(1.2); }
}
*/

.nav-brand a {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.nav-stats {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.nav-stat-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.nav-stat-circle:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.4);
}

.stat-num {
    font-size: 0.75rem;
    font-weight: 700;
    line-height: 1;
}

.stat-text {
    font-size: 0.6rem;
    font-weight: 500;
    opacity: 0.9;
    line-height: 1;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: white;
    font-weight: 500;
    transition: color 0.3s ease;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.nav-links a:hover {
    color: rgba(255, 255, 255, 0.8);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: white;
    margin: 3px 0;
    transition: 0.3s;
}

@media (max-width: 768px) {
    .nav-brand {
        gap: 1rem;
    }
    
    .nav-stats {
        gap: 0.5rem;
    }
    
    .nav-stat-circle {
        width: 45px;
        height: 45px;
    }
    
    .stat-num {
        font-size: 0.65rem;
    }
    
    .stat-text {
        font-size: 0.5rem;
    }
}

@media (max-width: 480px) {
    .nav-stats {
        gap: 0.3rem;
    }
    
    .nav-stat-circle {
        width: 35px;
        height: 35px;
    }
    
    .stat-num {
        font-size: 0.55rem;
    }
    
    .stat-text {
        font-size: 0.4rem;
    }
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #ffffff 0%, #f8fffe 50%, #f0fdfc 100%);
    padding-top: 120px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 2rem;
}

.hero-features {
    margin: 2rem 0;
}

.feature {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.feature i {
    color: #667eea;
    font-size: 1.5rem;
    width: 40px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

/* Technology Carousel */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: 0;
    margin-top: -4.5rem;
}

.tech-carousel {
    width: 100%;
    max-width: 500px;
}

.carousel-container {
    position: relative;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.carousel-slides {
    position: relative;
    width: 100%;
    height: 400px;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.5s ease-in-out;
    padding: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-slide.active {
    opacity: 1;
    transform: translateX(0);
}

.carousel-slide.prev {
    transform: translateX(-100%);
}

.tech-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    width: 100%;
}

.tech-card {
    background: linear-gradient(135deg, #f8f9ff 0%, #ffffff 100%);
    padding: 1.5rem;
    border-radius: 16px;
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    cursor: pointer;
}

.tech-card:hover {
    border-color: #667eea;
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.2);
}

.tech-card i {
    font-size: 2.5rem;
    color: #667eea;
    margin-bottom: 1rem;
    display: block;
}

.tech-card h4 {
    font-size: 1.1rem;
    color: #333;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.tech-card p {
    font-size: 0.9rem;
    color: #666;
    margin: 0;
}

/* Carousel Navigation */
.carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 1rem;
    pointer-events: none;
}

.carousel-btn {
    background: rgba(255, 255, 255, 0.9);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    pointer-events: all;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.carousel-btn:hover {
    background: white;
    transform: scale(1.1);
}

.carousel-btn i {
    color: #667eea;
    font-size: 1rem;
}

/* Carousel Indicators */
.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 0;
    background: rgba(248, 249, 255, 0.8);
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    background: #ddd;
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background: #667eea;
    transform: scale(1.2);
}

.indicator:hover {
    background: #667eea;
    opacity: 0.7;
}

/* Trust Section */
.trust {
    padding: 2rem 0;
    background: linear-gradient(135deg, #fefefe 0%, #f9fffe 100%);
    text-align: center;
}

.trust h3 {
    color: #333;
    margin-bottom: 1rem;
}

/* Challenges Section */
.challenges {
    padding: 3rem 0;
    background: linear-gradient(135deg, #ffffff 0%, #f0fdfc 100%);
}

.challenges h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #333;
}

.challenges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.challenge-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.challenge-card:hover {
    transform: translateY(-5px);
}

.challenge-card i {
    font-size: 3rem;
    color: #ff6b6b;
    margin-bottom: 1rem;
}

/* Solutions Section */
.solutions {
    padding: 6rem 0;
    background: linear-gradient(135deg, #fefefe 0%, #f8fffe 100%);
}

.solutions h2 {
    text-align: center;
    margin-bottom: 1rem;
    color: #333;
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.solution-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    transition: transform 0.3s ease;
}

.solution-card:hover {
    transform: translateY(-5px);
}

.solution-card i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.solution-card h4 {
    color: white;
    margin-bottom: 1rem;
}

.solution-card p {
    color: rgba(255, 255, 255, 0.9);
}

/* DATEV Section */
.datev-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, #ffffff 0%, #f0fdfc 100%);
}

.datev-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.datev-text h2 {
    color: #333;
    margin-bottom: 1rem;
}

.highlight {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
    font-size: 1.1rem;
}

.features-list {
    margin-top: 2rem;
}

.feature-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.feature-item i {
    color: #667eea;
    font-size: 1.5rem;
    margin-top: 0.5rem;
    min-width: 30px;
}

.feature-item h5 {
    color: #333;
    margin-bottom: 0.5rem;
}

.demo-placeholder, .video-placeholder {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 3rem;
    border-radius: 16px;
    text-align: center;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.demo-placeholder:hover, .video-placeholder:hover {
    transform: scale(1.05);
}

.demo-placeholder i, .video-placeholder i {
    font-size: 4rem;
    margin-bottom: 1rem;
}

/* Testimonial Section */
.testimonial {
    padding: 6rem 0;
    background: linear-gradient(135deg, #fefefe 0%, #f8fffe 100%);
}

.testimonial-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.testimonial-text blockquote {
    font-size: 1.1rem;
    font-style: italic;
    color: #555;
    margin-bottom: 2rem;
    padding: 2rem;
    background: linear-gradient(135deg, #ffffff 0%, #f8fffe 100%);
    border-radius: 12px;
    border-left: 4px solid #667eea;
}

.testimonial-author h5 {
    color: #333;
    margin-bottom: 0.5rem;
}

.testimonial-author p {
    color: #666;
    margin-bottom: 1rem;
}

.testimonial-author a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
}

/* Who I Serve Section */
.who-i-serve {
    padding: 6rem 0;
    background: linear-gradient(135deg, #ffffff 0%, #f0fdfc 100%);
}

.who-i-serve h2 {
    text-align: center;
    margin-bottom: 1rem;
    color: #333;
}

.companies-logos {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    margin-top: 3rem;
}

.logo-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4rem;
    flex-wrap: wrap;
}

.company-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: transform 0.3s ease, opacity 0.3s ease;
    opacity: 0.8;
}

.company-logo:hover {
    transform: translateY(-5px);
    opacity: 1;
}

.company-logo img {
    height: 60px;
    width: auto;
    max-width: 150px;
    object-fit: contain;
    margin-bottom: 0.5rem;
    filter: grayscale(20%);
    transition: filter 0.3s ease;
}

.company-logo:hover img {
    filter: grayscale(0%);
}

.company-logo span {
    font-size: 0.9rem;
    color: #666;
    font-weight: 500;
}

@media (max-width: 768px) {
    .logo-row {
        gap: 2rem;
    }
    
    .company-logo img {
        height: 50px;
        max-width: 120px;
    }
    
    .company-logo span {
        font-size: 0.8rem;
    }
}

.industry-card i {
    font-size: 3rem;
    color: #667eea;
    margin-bottom: 1rem;
}

/* Services Section */
.services {
    padding: 6rem 0;
    background: linear-gradient(135deg, #fefefe 0%, #f8fffe 100%);
}

.services h2 {
    text-align: center;
    margin-bottom: 1rem;
    color: #333;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease;
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: #667eea;
}

.service-card i {
    font-size: 3rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.service-details {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #eee;
}

/* Process Section */
.process {
    padding: 6rem 0;
    background: linear-gradient(135deg, #ffffff 0%, #f0fdfc 100%);
}

.process h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #333;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.step {
    text-align: center;
    padding: 2rem;
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1rem;
}

/* CTA Section */
.cta {
    padding: 6rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.cta h2 {
    color: white;
    margin-bottom: 1rem;
}

.cta p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.cta .btn-primary {
    background: white;
    color: #667eea;
}

.cta .btn-primary:hover {
    background: #f8f9fa;
}

/* Footer */
.footer {
    padding: 3rem 0;
    background: #333;
    color: white;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-info h4 {
    color: white;
    margin-bottom: 0.5rem;
}

.footer-info p {
    color: #ccc;
    margin-bottom: 0.25rem;
}

.footer-info a {
    color: #667eea;
    text-decoration: none;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #667eea;
}

/* About Section */
.about {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f8fffe 0%, #ffffff 50%, #f0fdfc 100%);
}

.about-intro {
    text-align: center;
    margin-bottom: 3rem;
}

.about-intro p {
    font-size: 1.2rem;
    color: #666;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

.certifications {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-bottom: 4rem;
    flex-wrap: wrap;
}

.cert-item {
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    min-width: 180px;
}

.cert-item:hover {
    transform: translateY(-5px);
}

.cert-badge {
    text-align: center;
}

.cert-badge i {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.cert-badge h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.cert-badge p {
    font-size: 0.85rem;
    color: #666;
    margin: 0;
    line-height: 1.3;
}

.cert-badge.microsoft i {
    color: #00a1f1;
}

.cert-badge.aws-cloud i {
    color: #ff9900;
}

.cert-badge.aws-ai i {
    color: #7b68ee;
}

.cert-badge.aws-dev i {
    color: #4285f4;
}

.cert-badge.aws-devops i {
    color: #20b2aa;
}

.cert-badge.azure-fundamentals i {
    color: #0078d4;
}

.cert-badge.aws-fundamentals i {
    color: #ff9900;
}

.cert-badge.gcp-fundamentals i {
    color: #4285f4;
}

.cert-badge.data-engineering i {
    color: #2e8b57;
}

.cert-badge.ai-fundamentals i {
    color: #9932cc;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.expertise-card {
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.expertise-card:hover {
    transform: translateY(-5px);
}

.expertise-card.areas {
    background: linear-gradient(135deg, #ffd700 0%, #ffed4e 100%);
}

.expertise-card.countries {
    background: linear-gradient(135deg, #9f7aea 0%, #b794f6 100%);
    color: white;
}

.expertise-card.technologies {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.expertise-card.introduction {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.expertise-card h3 {
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    font-weight: 600;
}

.expertise-card ul {
    list-style: none;
    padding: 0;
}

.expertise-card li {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 0.95rem;
}

.expertise-card.areas li {
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.expertise-card li:last-child {
    border-bottom: none;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .expertise-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-links.active {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: linear-gradient(135deg, #4a90a4 0%, #5a67d8 25%, #9f7aea 50%, #d53f8c 75%, #e53e3e 100%);
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        z-index: 999;
    }
    
    .nav-links.active a {
        color: white;
        padding: 0.75rem 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
        text-align: center;
    }
    
    .nav-links.active a:last-child {
        border-bottom: none;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .datev-content {
        grid-template-columns: 1fr;
    }
    
    .testimonial-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .certifications {
        gap: 1rem;
    }
    
    .cert-item {
        min-width: 150px;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
    }
    
    .tech-carousel {
        max-width: 400px;
    }
    
    .carousel-slides {
        height: 350px;
    }
    
    .carousel-slide {
        padding: 1.5rem;
    }
    
    .tech-cards {
        gap: 1rem;
    }
    
    .tech-card {
        padding: 1rem;
    }
    
    .tech-card i {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }
    
    .hero {
        padding-top: 100px;
    }
    
    .feature {
        flex-direction: column;
        text-align: center;
    }
    
    .feature-item {
        flex-direction: column;
        text-align: center;
    }
    
    .demo-placeholder, .video-placeholder {
        padding: 2rem;
    }
    
    .demo-placeholder i, .video-placeholder i {
        font-size: 2.5rem;
    }
    
    .tech-carousel {
        max-width: 320px;
    }
    
    .carousel-slides {
        height: 320px;
    }
    
    .carousel-slide {
        padding: 1rem;
    }
    
    .tech-cards {
        gap: 0.8rem;
    }
    
    .tech-card {
        padding: 0.8rem;
    }
    
    .tech-card i {
        font-size: 1.8rem;
        margin-bottom: 0.5rem;
    }
    
    .tech-card h4 {
        font-size: 1rem;
    }
    
    .tech-card p {
        font-size: 0.8rem;
    }
}

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

/* Loading animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease-out;
}