:root {
    --midnight: #0a192f;
    --deep-blue: #112240;
    --electric: #00BFFF;
    --silver: #ccd6f6;
    --white: #e6f1ff;
    --glass: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --accent-glow: rgba(0, 191, 255, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--midnight);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}

/* --- Utilities --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
}

.section-padding {
    padding: 100px 0;
}

.text-gradient {
    background: linear-gradient(90deg, #fff, var(--electric));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* --- Navigation --- */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: 0.3s ease;
    background: transparent;
}

nav.scrolled {
    background: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    padding: 15px 0;
}

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

.logo {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
    letter-spacing: 1px;
}

.logo span {
    color: var(--electric);
    display: block;
    font-size: 0.7rem;
    font-weight: 300;
    letter-spacing: 4px;
}

.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--silver);
    font-size: 0.9rem;
    font-weight: 400;
    transition: 0.3s;
}

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

.btn-whatsapp {
    background: #25D366;
    color: white;
    padding: 10px 20px;
    border-radius: 50px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: 0.3s;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}

/* --- Hero --- */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: var(--midnight);
}

.hero::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background: radial-gradient(circle at 50% 50%, rgba(0, 191, 255, 0.1), transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 191, 255, 0.05), transparent 40%),
        radial-gradient(circle at 20% 80%, rgba(0, 191, 255, 0.05), transparent 40%);
    animation: mesh-rotate 20s linear infinite;
    z-index: 1;
}

@keyframes mesh-rotate {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.hero-content {
    max-width: 800px;
    z-index: 10;
}

.hero h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 25px;
}

.hero p {
    font-size: 1.25rem;
    color: var(--silver);
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-btns {
    display: flex;
    gap: 20px;
}

.btn-primary {
    background: var(--electric);
    color: var(--midnight);
    padding: 15px 35px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: 0.3s;
}

.btn-primary:hover {
    background: transparent;
    color: var(--electric);
    box-shadow: 0 0 20px var(--accent-glow);
    outline: 1px solid var(--electric);
}

/* --- Sections Shared --- */
.section-title {
    font-size: 2.5rem;
    margin-bottom: 50px;
    position: relative;
}

.section-title span {
    color: var(--electric);
}

/* --- Challenge --- */
.challenge {
    background: var(--deep-blue);
}

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

.challenge-text p {
    font-size: 1.1rem;
    color: var(--silver);
    margin-bottom: 20px;
}

/* --- Pillars --- */
.pillars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.pillar-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    padding: 40px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    transition: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.pillar-card:hover {
    transform: translateY(-10px);
    border-color: var(--electric);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.pillar-card i {
    font-size: 2.5rem;
    color: var(--electric);
    margin-bottom: 20px;
    display: block;
}

.pillar-card h3 {
    margin-bottom: 15px;
    color: var(--white);
}

.pillar-card ul {
    list-style: none;
    color: var(--silver);
    font-size: 0.95rem;
}

.pillar-card li {
    margin-bottom: 12px;
    position: relative;
    padding-left: 20px;
}

.pillar-card li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--electric);
}

/* --- Impact --- */
.impact {
    background: linear-gradient(180deg, var(--midnight), #020c1b);
    text-align: center;
}

.impact-grid {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 40px;
}

.impact-item h2 {
    font-size: 3.5rem;
    color: var(--electric);
    margin-bottom: 10px;
}

.impact-item p {
    color: var(--silver);
    font-size: 1rem;
}

/* --- Method --- */
.method-timeline {
    max-width: 900px;
    margin: 0 auto;
}

.method-step {
    display: flex;
    gap: 40px;
    margin-bottom: 60px;
    position: relative;
}

.step-num {
    font-size: 4rem;
    font-weight: 800;
    color: var(--glass-border);
    line-height: 1;
    min-width: 100px;
}

.step-content h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--electric);
}

.step-content p {
    color: var(--silver);
}

/* --- Footer --- */
footer {
    padding: 80px 0 30px;
    background: #020c1b;
    border-top: 1px solid var(--glass-border);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 100px;
    margin-bottom: 50px;
}

.footer-info h2 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.contact-link {
    color: var(--white);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid var(--glass-border);
    font-size: 0.8rem;
    color: #495670;
}

/* --- Floating WhatsApp --- */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #25D366;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 10px 25px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    transition: 0.3s;
}

.whatsapp-float:hover {
    transform: scale(1.1);
}

.whatsapp-float svg {
    fill: white;
    width: 35px;
    height: 35px;
}

/* --- Animations --- */
[data-aos] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .challenge-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .nav-links {
        display: none;
    }
}