:root {
    --dark: #0c0e10;
    --dark-2: #141719;
    --light: #fafafa;
    --light-2: #f3f4f5;
    --white: #ffffff;
    --black: #111;
    --gray-200: #e4e6e8;
    --gray-400: #9ca3ab;
    --gray-600: #4b5563;
    --accent: #B13E31;
    --accent-soft: rgba(177,62,49,0.08);
    --green: #22c55e;
    --font: 'Inter', -apple-system, sans-serif;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { font-family: var(--font); color: var(--black); line-height: 1.65; background: var(--light); letter-spacing: -0.03em; overflow-x: hidden; }
a { color: var(--accent); text-decoration: none; }
.container { max-width: 960px; margin: 0 auto; padding: 0 2rem; }
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.revealed { opacity: 1; transform: translateY(0); }

/* Buttons */
.btn { display: inline-flex; align-items: center; padding: 0.75rem 1.75rem; border-radius: 100px; background: var(--accent); color: #fff; font-family: var(--font); font-size: 0.875rem; font-weight: 500; border: none; cursor: pointer; letter-spacing: -0.03em; transition: background 0.2s, transform 0.2s; }
.btn:hover { background: #9a3529; transform: translateY(-1px); }
.btn--large { padding: 0.875rem 2.25rem; font-size: 0.9375rem; }
.btn--full { width: 100%; justify-content: center; }
.btn--nav { padding: 0.5rem 1.25rem; font-size: 0.8125rem; }
.tag { display: inline-block; font-size: 0.625rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--accent); margin-bottom: 1.25rem; }
.tag--small { font-size: 0.5625rem; }

/* Nav */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 1rem 0; transition: all 0.3s; }
.nav.scrolled { background: rgba(12,14,16,0.95); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(255,255,255,0.05); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; max-width: 1100px; margin: 0 auto; padding: 0 2rem; }
.nav__logo-dark { height: 20px; display: block; }
.nav__logo-light { display: none; }
.nav__links { display: flex; gap: 2.5rem; }
.nav__links a { font-size: 0.8125rem; color: rgba(255,255,255,0.5); font-weight: 400; }
.nav__links a:hover { color: #fff; }
.nav__toggle { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; }
.nav__toggle span { width: 20px; height: 1.5px; background: #fff; }
.mobile-nav { display: none; position: fixed; inset: 0; z-index: 99; background: var(--dark); flex-direction: column; align-items: center; justify-content: center; gap: 2rem; opacity: 0; pointer-events: none; }
.mobile-nav.open { opacity: 1; pointer-events: all; }
.mobile-nav a { font-size: 1.25rem; color: rgba(255,255,255,0.6); }

/* Hero — Dark with BG */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; padding: 8rem 0 5rem; color: #fff; overflow: hidden; }
.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__bg-img { width: 100%; height: 100%; object-fit: cover; opacity: 0.35; }
.hero__overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(12,14,16,0.7) 0%, rgba(12,14,16,0.4) 40%, rgba(12,14,16,0.85) 100%); }
.hero__content { position: relative; z-index: 2; }
.hero h1 { font-size: clamp(2.5rem, 5.5vw, 3.75rem); font-weight: 700; line-height: 1.1; margin-bottom: 1rem; letter-spacing: -0.04em; }
.hero__accent { font-size: clamp(1.125rem, 2.5vw, 1.5rem); font-weight: 400; color: var(--accent); margin-bottom: 2rem; }
.hero__sub { font-size: 1rem; color: rgba(255,255,255,0.55); max-width: 500px; margin-bottom: 2.5rem; line-height: 1.8; }
.hero__actions { display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
.hero__note { font-size: 0.75rem; color: rgba(255,255,255,0.3); }

/* Floating cards */
.hero__float { position: absolute; z-index: 3; padding: 1rem 1.5rem; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.06); border-radius: 12px; backdrop-filter: blur(8px); }
.hero__float--1 { top: 30%; right: 8%; animation: float 6s ease-in-out infinite; }
.hero__float--2 { bottom: 20%; right: 12%; animation: float 7s ease-in-out infinite reverse; }
.hero__float-label { display: block; font-size: 0.5625rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: rgba(255,255,255,0.35); margin-bottom: 0.25rem; }
.hero__float-value { font-size: 1.5rem; font-weight: 700; }
.hero__float-bar { margin-top: 0.5rem; height: 3px; width: 60px; background: rgba(255,255,255,0.06); border-radius: 2px; overflow: hidden; }
.hero__float-bar-fill { height: 100%; width: 32%; background: var(--accent); border-radius: 2px; animation: barGrow 2s 1s ease forwards; }
@keyframes barGrow { to { width: 32%; } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

/* Problem — Light */
.problem { padding: 6rem 0; background: var(--light); }
.problem__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.problem__text h2 { font-size: clamp(1.75rem, 3.5vw, 2.25rem); font-weight: 700; line-height: 1.15; margin-bottom: 1.25rem; letter-spacing: -0.03em; }
.problem__text p { font-size: 1rem; color: var(--gray-600); line-height: 1.8; }
.stat-card { padding: 2.5rem; background: var(--white); border: 1px solid var(--gray-200); border-radius: 16px; display: flex; flex-direction: column; align-items: center; text-align: center; }
.stat-card__visual { position: relative; width: 120px; height: 120px; margin-bottom: 1.5rem; }
.stat-ring { width: 100%; height: 100%; }
.stat-ring__fill { transition: stroke-dasharray 1.5s ease; }
.stat-card__pct { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); font-size: 1.25rem; font-weight: 700; color: var(--accent); }
.stat-card__value { display: block; font-size: 1.25rem; font-weight: 700; color: var(--accent); margin-bottom: 0.75rem; letter-spacing: -0.03em; }
.stat-card__content p { font-size: 0.8125rem; color: var(--gray-600); line-height: 1.6; }

/* Idea — Dark */
.idea { padding: 6rem 0; background: var(--dark); color: #fff; position: relative; overflow: hidden; }
.idea__content h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 700; line-height: 1.15; margin-bottom: 1.5rem; letter-spacing: -0.03em; }
.idea__content p { font-size: 1rem; color: rgba(255,255,255,0.55); line-height: 1.8; margin-bottom: 1rem; }
.idea__punch { font-size: 1.375rem; font-weight: 700; color: var(--accent); margin-top: 1.5rem; }
.idea__visual { margin-top: 2.5rem; }
.idea__svg { width: 100%; height: auto; }

/* How — Light */
.how { padding: 6rem 0; background: var(--light-2); }
.how h2 { font-size: clamp(1.75rem, 3.5vw, 2.25rem); font-weight: 700; margin-bottom: 3rem; letter-spacing: -0.03em; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.step { padding: 2rem; background: var(--white); border: 1px solid var(--gray-200); border-radius: 14px; transition: transform 0.3s, box-shadow 0.3s; }
.step:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.06); }
.step__icon { width: 48px; height: 48px; border-radius: 12px; background: var(--accent-soft); display: flex; align-items: center; justify-content: center; color: var(--accent); margin-bottom: 1.25rem; }
.step__num { font-size: 1.75rem; font-weight: 700; color: var(--accent); opacity: 0.2; display: block; margin-bottom: 0.75rem; }
.step h3 { font-size: 1rem; font-weight: 700; margin-bottom: 0.75rem; }
.step p { font-size: 0.8125rem; color: var(--gray-600); line-height: 1.7; }

/* Beta — Dark */
.beta { padding: 6rem 0; background: var(--dark-2); color: #fff; }
.beta h2 { font-size: clamp(1.75rem, 3.5vw, 2.25rem); font-weight: 700; margin-bottom: 1.25rem; letter-spacing: -0.03em; }
.beta > .container p { font-size: 1rem; color: rgba(255,255,255,0.55); line-height: 1.8; margin-bottom: 1rem; }
.beta__list { margin: 1.5rem 0 2rem; list-style: none; }
.beta__list li { padding: 0.875rem 0; border-top: 1px solid rgba(255,255,255,0.06); font-size: 0.9375rem; color: #fff; padding-left: 1.75rem; position: relative; }
.beta__list li::before { content: '✓'; position: absolute; left: 0; color: var(--green); font-weight: 700; }

/* Products — Light */
.products { padding: 6rem 0; background: var(--light); }
.products h2 { font-size: clamp(1.75rem, 3.5vw, 2.25rem); font-weight: 700; margin-bottom: 1rem; letter-spacing: -0.03em; }
.products__intro { font-size: 1rem; color: var(--gray-600); line-height: 1.8; margin-bottom: 2.5rem; max-width: 600px; }
.products__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.product-card { padding: 2rem; background: var(--white); border: 1px solid var(--gray-200); border-radius: 14px; position: relative; transition: transform 0.3s, box-shadow 0.3s; }
.product-card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,0.05); }
.product-card__tag { display: inline-block; font-size: 0.5625rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--gray-400); border: 1px solid var(--gray-200); padding: 0.25rem 0.5rem; border-radius: 4px; margin-bottom: 1rem; }
.product-card h3 { font-size: 1.0625rem; font-weight: 700; margin-bottom: 0.75rem; }
.product-card p { font-size: 0.8125rem; color: var(--gray-600); line-height: 1.7; }
.product-card__arrow { position: absolute; top: 2rem; right: 2rem; font-size: 1.25rem; color: var(--gray-400); transition: transform 0.2s; }
.product-card:hover .product-card__arrow { transform: translateX(3px); color: var(--accent); }

/* Insights — Light */
.insights { padding: 6rem 0; background: var(--light-2); }
.insights h2 { font-size: clamp(1.75rem, 3.5vw, 2.25rem); font-weight: 700; margin-bottom: 0.75rem; letter-spacing: -0.03em; }
.insights__intro { font-size: 1rem; color: var(--gray-600); margin-bottom: 2.5rem; }
.insight-card { border: 1px solid var(--gray-200); border-radius: 14px; padding: 2.5rem; background: var(--white); }
.insight-card h3 { font-size: 1.375rem; font-weight: 700; margin-bottom: 0.5rem; letter-spacing: -0.03em; }
.insight-card__subtitle { font-size: 0.875rem; color: var(--gray-400); margin-bottom: 2rem; }
.insight-card__body { border-top: 1px solid var(--gray-200); padding-top: 1.5rem; }
.insight-card__body p { font-size: 0.9375rem; color: var(--gray-600); line-height: 1.8; margin-bottom: 1rem; }

/* About — Dark */
.about { padding: 6rem 0; background: var(--dark); color: #fff; }
.about h2 { font-size: clamp(1.75rem, 3.5vw, 2.25rem); font-weight: 700; margin-bottom: 1.25rem; letter-spacing: -0.03em; }
.about p { font-size: 1rem; color: rgba(255,255,255,0.55); line-height: 1.8; margin-bottom: 1.25rem; }

/* Footer */
.footer { padding: 4rem 0 2.5rem; background: var(--dark-2); color: rgba(255,255,255,0.5); }
.footer__inner { max-width: 1100px; }
.footer__top { display: flex; gap: 4rem; margin-bottom: 3rem; align-items: flex-start; }
.footer__logo { height: 18px; opacity: 0.7; }
.footer__col { display: flex; flex-direction: column; gap: 0.5rem; }
.footer__col h4 { font-size: 0.5625rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: rgba(255,255,255,0.2); margin-bottom: 0.375rem; }
.footer__col a, .footer__col span { font-size: 0.8125rem; color: rgba(255,255,255,0.4); }
.footer__col a:hover { color: #fff; }
.footer__bottom { border-top: 1px solid rgba(255,255,255,0.05); padding-top: 1.5rem; }
.footer__bottom p { font-size: 0.625rem; color: rgba(255,255,255,0.2); line-height: 1.8; }
.footer__bottom a { color: rgba(255,255,255,0.35); }

/* WhatsApp */
.whatsapp { position: fixed; bottom: 1.5rem; right: 1.5rem; width: 48px; height: 48px; border-radius: 50%; background: #25D366; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 16px rgba(0,0,0,0.2); z-index: 90; transition: transform 0.2s; }
.whatsapp:hover { transform: scale(1.08); }

/* Modal */
.modal-overlay { position: fixed; inset: 0; z-index: 1000; background: rgba(0,0,0,0.7); display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: opacity 0.25s; padding: 1rem; }
.modal-overlay.active { opacity: 1; pointer-events: all; }
.modal { background: var(--white); border-radius: 14px; padding: 2.5rem; max-width: 440px; width: 100%; position: relative; max-height: 90vh; overflow-y: auto; }
.modal__close { position: absolute; top: 1rem; right: 1.25rem; background: none; border: none; font-size: 1.5rem; color: var(--gray-400); cursor: pointer; }
.modal h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 0.375rem; letter-spacing: -0.03em; }
.modal__desc { font-size: 0.8125rem; color: var(--gray-400); margin-bottom: 1.5rem; }
.modal__form { display: flex; flex-direction: column; gap: 0.875rem; }
.modal__row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.875rem; }
.modal__field { display: flex; flex-direction: column; gap: 0.25rem; }
.modal__field label { font-size: 0.625rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; color: var(--gray-400); }
.modal__field input { padding: 0.6875rem 0.875rem; border: 1px solid var(--gray-200); border-radius: 8px; font-family: var(--font); font-size: 0.875rem; color: var(--black); outline: none; letter-spacing: -0.03em; }
.modal__field input:focus { border-color: var(--accent); }
.modal__field input::placeholder { color: var(--gray-400); }
.modal__success { display: flex; flex-direction: column; align-items: center; text-align: center; padding: 2rem 0; }
.modal__success-icon { width: 48px; height: 48px; border-radius: 50%; background: rgba(34,197,94,0.08); color: var(--green); display: flex; align-items: center; justify-content: center; font-size: 1.25rem; font-weight: 700; margin-bottom: 1rem; }

/* Responsive */
@media (max-width: 768px) {
    .nav__links, .btn--nav { display: none; }
    .nav__toggle { display: flex; }
    .mobile-nav { display: flex; }
    .hero__float { display: none; }
    .hero { min-height: auto; padding: 7rem 0 4rem; }
    .problem__grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .steps { grid-template-columns: 1fr; }
    .products__grid { grid-template-columns: 1fr; }
    .footer__top { flex-direction: column; gap: 2rem; }
    .modal__row { grid-template-columns: 1fr; }
}