/* ── Reset & Base ─────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --primary: #4F46E5;
    --primary-dark: #3730A3;
    --primary-light: #6366F1;
    --accent: #06B6D4;
    --dark: #0F172A;
    --gray-900: #1E293B;
    --gray-800: #334155;
    --gray-700: #475569;
    --gray-400: #94A3B8;
    --gray-200: #E2E8F0;
    --gray-100: #F1F5F9;
    --white: #FFFFFF;
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    --font: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    color: var(--gray-800);
    line-height: 1.6;
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { display: block; max-width: 100%; }

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Utility ──────────────────────────────────────── */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    border: none;
    text-align: center;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(79, 70, 229, 0.45);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.6);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--white);
}

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

.btn-outline-dark:hover {
    background: var(--primary);
    color: var(--white);
}

.section-label {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--primary);
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.15rem;
    color: var(--gray-700);
    max-width: 640px;
    margin: 0 auto 48px;
}

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

section { padding: 100px 0; }

/* ── Navigation ───────────────────────────────────── */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-200);
    transition: box-shadow 0.3s ease;
}

.navbar.scrolled {
    box-shadow: 0 2px 24px rgba(0,0,0,0.08);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark);
}

.logo span { color: var(--primary); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--gray-700);
    transition: color 0.2s;
}

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

.nav-links .btn { padding: 10px 24px; font-size: 0.9rem; }

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
}

.hamburger span {
    display: block;
    width: 26px;
    height: 2.5px;
    background: var(--dark);
    border-radius: 2px;
    transition: 0.3s;
}

/* ── Hero ─────────────────────────────────────────── */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(160deg, #0F172A 0%, #1E293B 50%, #312E81 100%);
    overflow: hidden;
    padding-top: 72px;
}

.hero::before {
    content: '';
    position: absolute;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(99,102,241,0.3) 0%, transparent 70%);
    top: -100px; right: -100px;
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(6,182,212,0.2) 0%, transparent 70%);
    bottom: -50px; left: -50px;
    border-radius: 50%;
}

.hero .container {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-content { flex: 1; }

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    padding: 6px 16px;
    border-radius: 999px;
    font-size: 0.85rem;
    color: var(--accent);
    margin-bottom: 24px;
    font-weight: 500;
}

.hero-badge .dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero h1 {
    font-size: 3.8rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--white);
    margin-bottom: 24px;
}

.hero h1 .highlight {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.2rem;
    color: var(--gray-400);
    max-width: 520px;
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
}

.hero-graphic {
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(99,102,241,0.15) 0%, rgba(6,182,212,0.1) 100%);
    border: 1px solid rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.hero-graphic::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 50%;
    padding: 2px;
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0.3;
}

.hero-graphic-text {
    font-size: 5rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-graphic-sub {
    color: var(--white);
    font-size: 3rem;
    margin-top: 4px;
    font-weight: bold;
}

.hero-graphic-inner { text-align: center; }

.site-logo {
    height: 125px; 
    width: auto; 
    display: block;
}


/* floating stats */
.floating-stat {
    position: absolute;
    background: rgba(255,255,255,0.07);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    padding: 14px 20px;
    color: var(--white);
}

.floating-stat .stat-value {
    font-size: 1.3rem;
    font-weight: 700;
}

.floating-stat .stat-label {
    font-size: 0.75rem;
    color: var(--gray-400);
}

.floating-stat.s1 { top: 40px; right: -30px; }
.floating-stat.s2 { bottom: 60px; left: -40px; }

/* ── Features / Product ───────────────────────────── */
.features { background: var(--white); }

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--gray-100);
    border-radius: 16px;
    padding: 36px 32px;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid transparent;
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.08);
    border-color: var(--gray-200);
}

.feature-icon {
    width: 56px; height: 56px;
    border-radius: 14px;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.feature-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--gray-700);
    line-height: 1.6;
}

/* ── About / Mission ──────────────────────────────── */
.about {
    background: var(--gray-100);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-content .section-label { margin-bottom: 12px; }
.about-content .section-title { text-align: left; }

.about-content p {
    color: var(--gray-700);
    margin-bottom: 16px;
    font-size: 1.05rem;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.about-stat-card {
    background: var(--white);
    border-radius: 14px;
    padding: 28px 24px;
    text-align: center;
    border: 1px solid var(--gray-200);
}

.about-stat-card .number {
    font-size: 2.2rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-stat-card .label {
    font-size: 0.85rem;
    color: var(--gray-700);
    margin-top: 4px;
}


/* ── Contact Form + Info ──────────────────────────── */
.contact { background: var(--white); }

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 16px;
}

.contact-info p {
    color: var(--gray-700);
    margin-bottom: 28px;
    font-size: 1rem;
}

.contact-detail {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 22px;
}

.contact-detail .icon-circle {
    width: 44px; height: 44px;
    border-radius: 12px;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

.contact-detail .detail-text .label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--gray-400);
}

.contact-detail .detail-text .value {
    font-size: 1rem;
    color: var(--dark);
    font-weight: 500;
}

.contact-detail .detail-text .value a {
    color: var(--primary);
    transition: color 0.2s;
}

.contact-detail .detail-text .value a:hover { color: var(--primary-dark); }

.contact-form-box {
    background: var(--white);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.06);
    border: 1px solid var(--gray-200);
}

.contact-form-box h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 24px;
}

.form-group { margin-bottom: 18px; }

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--gray-200);
    border-radius: 10px;
    font-size: 0.95rem;
    font-family: var(--font);
    color: var(--dark);
    background: var(--gray-100);
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,0.12);
}

.form-group textarea { resize: vertical; min-height: 110px; }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.contact-form-box .btn { width: 100%; padding: 14px; }

/* ── Footer ───────────────────────────────────────── */
.footer {
    background: var(--dark);
    color: var(--gray-400);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer .logo {
    color: var(--white);
    margin-bottom: 16px;
}

.footer-about p {
    font-size: 0.9rem;
    line-height: 1.7;
}

.footer h4 {
    color: var(--white);
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer ul li { margin-bottom: 10px; }

.footer ul li a {
    font-size: 0.9rem;
    color: var(--gray-400);
    transition: color 0.2s;
}

.footer ul li a:hover { color: var(--white); }

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: 24px;
    text-align: center;
    font-size: 0.85rem;
}

/* ── Mobile Nav ───────────────────────────────────── */
.mobile-nav {
    display: none;
    position: fixed;
    top: 72px; left: 0; right: 0; bottom: 0;
    background: var(--white);
    z-index: 999;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
}

.mobile-nav.active { display: flex; }

.mobile-nav a {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--dark);
}

/* ── Responsive ───────────────────────────────────── */
@media (max-width: 1024px) {
    .hero h1 { font-size: 3rem; }
    .hero-graphic { width: 320px; height: 320px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .hamburger { display: flex; }

    .hero .container { flex-direction: column; text-align: center; }
    .hero p { margin: 0 auto 40px; }
    .hero h1 { font-size: 2.5rem; }
    .hero-buttons { justify-content: center; }
    .hero-visual { margin-top: 40px; }
    .hero-graphic { width: 260px; height: 260px; }
    .floating-stat { display: none; }

    .about-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }

    .section-title { font-size: 2rem; }

    .footer-grid { grid-template-columns: 1fr; gap: 32px; }

    .cta-buttons { flex-direction: column; align-items: center; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 2rem; }
    .hero p { font-size: 1rem; }
    section { padding: 64px 0; }
    .contact-form-box { padding: 24px; }
}