:root {
    --brand-red: #E31C25;
    --brand-red-dark: #B3141B;
    --brand-red-light: #FF4D4D;
    --bg-white: #FFFFFF;
    --bg-light: #F8F9FA;
    --text-dark: #2D3436;
    --text-muted: #636E72;
    --glass: rgba(255, 255, 255, 0.8);
    --glass-dark: rgba(0, 0, 0, 0.05);
    --shadow-doador: 0 20px 40px rgba(0, 0, 0, 0.1);
    --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-white);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

/* === Navigation === */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 10%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: transparent;
    transition: var(--transition);
}

nav.scrolled {
    background: var(--glass);
    backdrop-filter: blur(10px);
    padding: 1rem 10%;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo img {
    height: 60px;
    width: auto;
    transition: var(--transition);
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

.logo img:hover {
    transform: scale(1.05);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

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

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

.btn-cta {
    background: var(--brand-red);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
    box-shadow: 0 10px 20px rgba(227, 28, 37, 0.2);
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(227, 28, 37, 0.3);
    background: var(--brand-red-dark);
}

/* === Hero Section === */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 10% 80px;
    background: radial-gradient(circle at top right, #fff5f5 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.badge {
    background: rgba(227, 28, 37, 0.1);
    color: var(--brand-red);
    padding: 8px 16px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
    display: inline-block;
    margin-bottom: 1.5rem;
    white-space: nowrap;
}

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

.btn-secondary {
    background: transparent;
    color: var(--text-dark);
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    border: 2px solid var(--glass-dark);
    transition: var(--transition);
}

.btn-secondary:hover {
    background: var(--bg-light);
    border-color: var(--text-dark);
}

.btn-webapp {
    background: #0d47a1;
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
    box-shadow: 0 10px 20px rgba(13, 71, 161, 0.2);
    border: none;
    text-align: center;
}

.btn-webapp:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(13, 71, 161, 0.3);
    background: #0a3d8a;
}

/* === Links Section === */
.links-section {
    padding: 100px 10%;
    background: white;
}

.links-container {
    display: flex;
    gap: 60px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.links-text { flex: 1; }

.emergency-badge {
    display: inline-block;
    background: var(--brand-red);
    color: white;
    padding: 15px 30px;
    border-radius: 12px;
    font-weight: 900;
    font-size: 1.5rem;
    margin-top: 30px;
    box-shadow: 0 10px 20px rgba(227, 28, 37, 0.2);
}

.links-states {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.state-item {
    background: var(--bg-light);
    padding: 12px 20px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-muted);
    border: 1px solid transparent;
    transition: var(--transition);
}

.state-item:hover {
    border-color: var(--brand-red);
    color: var(--brand-red);
    background: white;
}

/* === Modules Section === */
.modules-section {
    padding: 100px 10%;
    background: var(--bg-light);
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.module-item {
    background: white;
    padding: 30px;
    border-radius: 30px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.module-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-doador);
}

.module-number {
    font-size: 3rem;
    font-weight: 900;
    color: rgba(227, 28, 37, 0.05);
    position: absolute;
    top: 10px;
    right: 20px;
}

.module-item h4 {
    font-size: 1.25rem;
    margin-bottom: 10px;
    color: var(--brand-red);
    position: relative;
    z-index: 1;
}

.module-item p {
    position: relative;
    z-index: 1;
}

/* === Chain Section === */
.chain-section {
    padding: 100px 10%;
    background: white;
}

.chain-container {
    display: flex;
    align-items: center;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.chain-text { flex: 1; }
.chain-image { flex: 1.2; }

.chain-image img {
    width: 100%;
    border-radius: 40px;
    box-shadow: var(--shadow-doador);
}

.chain-list {
    list-style: none;
    margin-top: 30px;
}

.chain-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.chain-list i {
    color: var(--brand-red);
    background: rgba(227, 28, 37, 0.1);
    padding: 10px;
    border-radius: 12px;
}

/* === Quiz Section === */
.quiz-preview {
    padding: 100px 10%;
    background: #1a1a1a;
    color: white;
    display: flex;
    align-items: center;
    gap: 60px;
    overflow: hidden;
}

.quiz-content { flex: 1; }
.quiz-mockup { flex: 1; }

.quiz-mockup img {
    max-width: 100%;
    transform: rotate(5deg) translateY(50px);
}

.quiz-features {
    display: flex;
    gap: 30px;
    margin-top: 40px;
}

.q-feat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.q-feat i {
    font-size: 2rem;
    color: var(--brand-red-light);
}

/* === Premium Section === */
.premium-section {
    padding: 100px 10%;
    background: white;
    display: flex;
    justify-content: center;
}

.premium-card {
    background: var(--bg-light);
    padding: 50px;
    border-radius: 40px;
    max-width: 600px;
    width: 100%;
    text-align: center;
    border: 2px solid var(--brand-red);
    position: relative;
}

.premium-badge {
    background: var(--brand-red);
    color: white;
    padding: 5px 15px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 800;
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
}

.premium-list {
    list-style: none;
    text-align: left;
    margin: 30px 0;
}

.premium-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    font-weight: 600;
}

.premium-list i { color: #2ecc71; }

.full-width { width: 100%; display: block; }

/* === Sponsors Section === */
.sponsors-section {
    padding: 80px 10%;
    background: white;
    text-align: center;
}

.sponsors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.sponsor-item {
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    border: 2px dashed #ddd;
    border-radius: 20px;
    color: #aaa;
    font-weight: 600;
    transition: var(--transition);
    text-decoration: none;
}

.ad-banner-link {
    text-decoration: none;
}

.sponsor-item:hover {
    border-color: var(--brand-red);
    color: var(--brand-red);
}

.ad-banner-placeholder {
    max-width: 970px;
    margin: 0 auto;
    height: 90px;
    background: #f0f0f0;
    border: 1px solid #ddd;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    color: #888;
    font-size: 0.9rem;
    font-style: italic;
}

/* === Ads Section === */
.ads-section {
    padding: 80px 10%;
    background: var(--bg-light);
    text-align: center;
}

.ads-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px;
    background: white;
    border-radius: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.ads-container p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: var(--text-muted);
}

/* === Credits Section === */
.credits-section {
    padding: 60px 10%;
    background: white;
    border-top: 1px solid var(--glass-dark);
}

.credits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.credit-item h3 {
    color: var(--brand-red);
    margin-bottom: 10px;
}

/* === Footer === */
footer {
    padding: 80px 10% 40px;
    background: #0f0f0f;
    color: white;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    margin-bottom: 60px;
}

.footer-brand img { height: 50px; margin-bottom: 20px; }
.footer-nav h4 { margin-bottom: 20px; }
.footer-nav ul { list-style: none; }
.footer-nav a { color: #888; text-decoration: none; transition: 0.3s; }
.footer-nav a:hover { color: white; }

/* === Responsive === */
@media (max-width: 1024px) {
    h1 { font-size: 3rem; }
    .hero { flex-direction: column; text-align: center; padding: 140px 5% 60px; height: auto; }
    .hero-content { margin-bottom: 50px; }
    .hero-btns { justify-content: center; }
    .hero-image img { max-width: 80%; }
    .chain-container { flex-direction: column; text-align: center; }
    .quiz-preview { flex-direction: column; text-align: center; }
}

@media (max-width: 768px) {
    nav { padding: 1rem 5%; }
    .nav-links { display: none; }
    .hero { padding-top: 100px; }
    h1 { font-size: 2.5rem; }
    .premium-card { padding: 30px; }
}