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

body {
    font-family: "Inter", sans-serif;
    line-height: 1.6;
    color: white;
    background: linear-gradient(135deg, #0f172a, #1e293b, #334155);
    overflow-x: hidden;
}

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

.sagesta, h1, h2, .brand {
    font-family: "Playfair Display", serif;
    font-weight: 600;
    letter-spacing: -0.02em;
}

/* HEADER */
header {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 15px 0;
    background: rgba(15, 20, 25, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
}

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

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    color: #3b82f6;
}

.brand-logo {
    width: 48px;
    height: 48px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 34px;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
}

.nav-links a:hover {
    color: #3b82f6;
}

.cta-button {
    background: linear-gradient(135deg, #1e3a8a, #2563eb);
    color: white;
    padding: 12px 22px;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
}

/* HERO */
.hero {
    padding: 150px 0 90px;
    background: linear-gradient(135deg, #1e3a8a, #1e40af, #2563eb);
    text-align: center;
    position: relative;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.05), transparent 10%),
        radial-gradient(circle at 80% 40%, rgba(255, 255, 255, 0.03), transparent 12%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%,100% { transform: translateY(0); }
    50% { transform: translateY(-18px); }
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: clamp(2.4rem, 7vw, 4.2rem);
    background: linear-gradient(45deg, white, #e0e7ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tagline {
    opacity: 0.9;
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.btn-primary {
    background: white;
    color: #2563eb;
    padding: 15px 30px;
    border-radius: 28px;
    font-weight: 600;
    text-decoration: none;
}

.btn-secondary {
    border: 2px solid white;
    padding: 15px 30px;
    border-radius: 28px;
    color: white;
    text-decoration: none;
}

/* PROBLEM SECTION */
.problem-section {
    padding: 80px 0;
    background: #1a2332;
}

.section-title {
    text-align: center;
    font-size: 2.4rem;
    margin-bottom: 50px;
}

.problems-grid {
    display: grid;
    gap: 34px;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.problem-card {
    background: #334155;
    padding: 30px;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.1);
    transition: 0.3s ease;
}

.problem-card:hover {
    transform: translateY(-6px);
    border-color: #3b82f6;
}

.problem-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #ef4444, #dc2626);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 15px;
}

/* SOLUTION */
.solution-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #0f172a, #1e293b, #334155);
}

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

.solution-text h2 {
    font-size: 2.2rem;
    background: linear-gradient(135deg, #3b82f6, #93c5fd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.solution-features {
    list-style: none;
    margin-top: 20px;
}

.solution-features li {
    margin-bottom: 12px;
    padding-left: 28px;
    position: relative;
    color: #94a3b8;
}

.solution-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
}

.solution-visual {
    background: rgba(26, 35, 50, 0.5);
    border-radius: 20px;
    height: 380px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    border: 1px solid rgba(255,255,255,0.1);
}

/* ROBOT ANIMATION */
.robot-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.robot-animation {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    border-radius: 50%;
    position: absolute;
    animation: robotMove 8s ease-in-out infinite;
    top: 50%;
    left: 10%;
    transform: translateY(-50%);
    display: flex;
    justify-content: center;
    align-items: center;
}

.robot-logo {
    width: 80px;
    height: 80px;
}

@keyframes robotMove {
    0% { left: 10%; top: 50%; }
    25% { left: 60%; top: 20%; }
    50% { left: 75%; top: 70%; }
    75% { left: 30%; top: 30%; }
    100% { left: 10%; top: 50%; }
}

.pollutant {
    position: absolute;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    animation: pollutantFloat 2s ease-in-out infinite alternate;
    opacity: 0.9;
}

.pollutant-1 { background:#ef4444; top:20%; left:60%; animation-delay:0s; }
.pollutant-2 { background:#f59e0b; top:70%; left:80%; animation-delay:.4s; }
.pollutant-3 { background:#8b5cf6; top:40%; left:75%; animation-delay:.8s; }
.pollutant-4 { background:#06b6d4; top:25%; left:30%; animation-delay:1.2s; }
.pollutant-5 { background:#10b981; top:65%; left:40%; animation-delay:1.6s; }

@keyframes pollutantFloat {
    0% { transform: scale(1) translateY(0); opacity: 0.9; }
    50% { transform: scale(0.85) translateY(-10px); opacity: 0.7; }
    100% { transform: scale(1.2) translateY(6px); opacity: 0.5; }
}

.pollutant.captured {
    animation: captured .5s ease-out forwards;
}

@keyframes captured {
    0% { transform: scale(1); opacity:.9; }
    50% { transform: scale(1.5); opacity:.3; }
    100% { transform: scale(0); opacity:0; }
}

/* MARKET */
.market-section {
    padding: 80px 0;
    background: #1a2332;
}

.market-stats {
    display: grid;
    gap: 34px;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.stat-card {
    background: #334155;
    padding: 30px;
    text-align: center;
    border-radius: 14px;
    border: 1px solid rgba(255,255,255,0.1);
    transition: 0.3s ease;
}

.stat-card:hover {
    transform: scale(1.05);
    border-color: #3b82f6;
}

.stat-number {
    font-size: 2.8rem;
    color: #3b82f6;
}

.stat-label {
    font-weight: 600;
    margin-bottom: 8px;
}

/* TEAM */
.team-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #0f172a, #1e293b, #334155);
}

.team-grid {
    display: grid;
    gap: 34px;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.team-card {
    padding: 30px;
    background: #334155;
    border-radius: 14px;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.1);
}

.team-avatar {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    border-radius: 50%;
    margin: 0 auto 15px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
}

/* FOOTER */
footer {
    background: #0f1419;
    padding: 60px 0 40px;
}

.footer-content {
    display: grid;
    gap: 34px;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.footer-section h3 {
    color: #3b82f6;
    margin-bottom: 14px;
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: #94a3b8;
    text-decoration: none;
}

.footer-bottom {
    text-align: center;
    color: #94a3b8;
    margin-top: 30px;
}

/* MODAL */
.enquiry-modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.8);
    backdrop-filter: blur(6px);
    z-index: 9999;
    display: none;
    justify-content: center;
    align-items: center;
}

.enquiry-modal.active {
    display: flex;
}

.enquiry-content {
    background: #1a2332;
    padding: 40px;
    width: min(600px, 90%);
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.1);
    position: relative;
}

.enquiry-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: transparent;
    border: none;
    font-size: 30px;
    color: #94a3b8;
    cursor: pointer;
}

.form-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group textarea {
    background: #334155;
    border: 1px solid rgba(255,255,255,0.1);
    padding: 12px;
    border-radius: 10px;
    color: white;
}

.enquiry-submit {
    background: linear-gradient(135deg, #1e3a8a, #2563eb);
    color: white;
    padding: 14px 20px;
    border-radius: 10px;
    border: none;
    font-weight: 600;
    cursor: pointer;
}

.success-message {
    display: none;
    background: #10b981;
    padding: 12px;
    margin-top: 12px;
    border-radius: 10px;
    text-align: center;
}

.success-message.show {
    display: block;
}

/* RESPONSIVE */
@media (max-width: 800px) {
    .nav-links {
        display: none;
    }

    .solution-content {
        grid-template-columns: 1fr;
    }
}