:root {
    --primary: #4AAFB8;
    --secondary: #9BC53D;
    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --surface: #ffffff;
    --text-head: #0f172a;
    --text-body: #475569;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --font-family: 'Inter', -apple-system, sans-serif;
    --transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
}

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

body {
    background-color: var(--bg);
    color: var(--text-body);
    font-family: var(--font-family);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 40px;
}

section {
    padding: 140px 0;
}

/* Typography */
h1,
h2,
h3,
h4 {
    color: var(--text-head);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

h1 {
    font-size: clamp(2.75rem, 6vw, 4.8rem);
    margin-bottom: 32px;
}

h2 {
    font-size: clamp(2.25rem, 4vw, 3.25rem);
    margin-bottom: 40px;
}

h3 {
    font-size: 1.85rem;
    margin-bottom: 20px;
}

p {
    margin-bottom: 20px;
    font-size: 1.15rem;
    color: var(--text-body);
}

.gradient-text {
    background: linear-gradient(135deg, var(--text-head) 30%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navigation */
nav {
    padding: 24px 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(25px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border);
}

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

.nav-links {
    display: flex;
    gap: 48px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-head);
    font-size: 0.95rem;
    font-weight: 600;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary);
}

/* Hero */
.hero {
    padding: 240px 0 140px;
    position: relative;
    overflow: hidden;
    background: radial-gradient(circle at top right, rgba(74, 175, 184, 0.05), transparent 60%);
}

.hero-layout {
    max-width: 900px;
}

.hero p {
    max-width: 750px;
    font-size: 1.4rem;
    margin-bottom: 48px;
    color: var(--text-body);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 18px 40px;
    background: var(--text-head);
    color: #fff;
    text-decoration: none;
    border-radius: 14px;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 30px rgba(15, 23, 42, 0.12);
    background: #000;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--text-head);
    color: var(--text-head);
}

.btn-outline:hover {
    background: var(--text-head);
    color: #fff;
}

/* Slider / Banners */
.slider-container {
    padding: 80px 0;
}

.slider-wrapper {
    position: relative;
    overflow: hidden;
    height: 520px;
    border-radius: 40px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1.2s ease;
    display: flex;
    align-items: center;
    background: #fff;
    padding: 100px;
}

.slide.active {
    opacity: 1;
    z-index: 1;
}

.slide h3 {
    font-size: 3rem;
    color: var(--text-head);
}

.slide p {
    font-size: 1.25rem;
    color: var(--text-body);
}

.slider-nav {
    display: flex;
    gap: 16px;
    margin-top: 48px;
    justify-content: center;
}

.slider-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border);
    cursor: pointer;
    transition: var(--transition);
}

.slider-dot.active {
    background: var(--primary);
    width: 36px;
    border-radius: 8px;
}

/* Partner Carousel */
.partners-carousel {
    padding: 100px 0;
    background: var(--bg-alt);
    overflow: hidden;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.carousel-track {
    display: flex;
    animation: scroll 45s linear infinite;
    gap: 100px;
    width: max-content;
    align-items: center;
}

.partner-logo img {
    max-height: 48px;
    filter: grayscale(100%);
    opacity: 0.4;
    transition: var(--transition);
}

.partner-logo img:hover {
    filter: grayscale(0%);
    opacity: 1;
    transform: scale(1.15);
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(calc(-100% / 2));
    }
}

/* Grid System */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.grid-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 40px;
}

/* Cards */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 56px;
    border-radius: 32px;
    transition: var(--transition);
    box-shadow: var(--shadow);
    height: 100%;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.tag {
    display: inline-block;
    padding: 10px 20px;
    background: #f1f5f9;
    color: var(--primary);
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 800;
    margin-bottom: 28px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border: 1px solid var(--border);
}

/* Footer */
footer {
    padding: 120px 0 60px;
    border-top: 1px solid var(--border);
}

@media (max-width: 1024px) {

    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }

    .hero {
        padding: 200px 0 100px;
    }

    .slide {
        padding: 60px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 24px;
    }

    .nav-links {
        display: none;
    }

    h1 {
        font-size: 2.5rem;
    }

    .slide h3 {
        font-size: 2rem;
    }
}