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

body {
    font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    color: #ffffff;
    overflow-x: hidden;
}

/* Navbar */
.navbar {
    background: #000000;
    padding: 1rem 0;
    box-shadow: none;
}

.navbar-toggler {
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.navbar-toggler:hover {
    border-color: #dc143c;
    background: rgba(220, 20, 60, 0.1);
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 0.2rem rgba(220, 20, 60, 0.3);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.nav-link {
    color: #ffffff !important;
    font-weight: 500;
    margin: 0 0.5rem;
    transition: all 0.3s ease;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

.nav-link:hover {
    color: #dc143c !important;
    transform: translateY(-2px);
}

.nav-link.active {
    color: #dc143c !important;
}

.btn-register {
    background: linear-gradient(135deg, #7ed321 0%, #5fb800 100%);
    color: white;
    font-weight: 700;
    padding: 0.7rem 2rem;
    border-radius: 8px;
    border: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(126, 211, 33, 0.3);
    display: inline-block;
    text-decoration: none;
}

.btn-register:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(126, 211, 33, 0.5);
    background: linear-gradient(135deg, #8fe432 0%, #6fc910 100%);
    color: white;
}

.btn-login {
    background: transparent;
    color: white;
    font-weight: 600;
    padding: 0.7rem 2rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    margin-right: 1rem;
    display: inline-block;
    text-decoration: none;
}

.btn-login:hover {
    border-color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
    color: white;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #dc143c 0%, #8b0000 100%);
    padding: 5rem 0 3rem;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.3rem;
    opacity: 0.95;
    margin-bottom: 2rem;
}

/* Promo Cards */
.promos-section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 3rem;
    text-align: center;
    color: #ffffff;
}

.promo-card {
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 2rem;
    height: 100%;
}

.promo-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(220, 20, 60, 0.4);
    border-color: #dc143c;
}

.promo-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, #7ed321 0%, #5fb800 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 15px rgba(125, 211, 33, 0.903);
}

.promo-badge.hot {
    background: linear-gradient(135deg, #ff6b00 0%, #ff0000 100%);
    box-shadow: 0 4px 15px rgba(255, 106, 0, 0.616);
}

.promo-header {
    background: linear-gradient(135deg, #dc143c 0%, #8b0000 100%);
    padding: 2.5rem;
    position: relative;
}

.promo-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    display: inline-block;
}

.promo-title {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.promo-amount {
    font-size: 3rem;
    font-weight: 900;
    color: #ffff00;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
    margin: 0.5rem 0;
}

.promo-body {
    padding: 2rem;
}

.promo-description {
    color: #cccccc;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.promo-features {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
}

.promo-features li {
    padding: 0.7rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    color: #ffffff;
}

.promo-features li:last-child {
    border-bottom: none;
}

.promo-features i {
    color: #7ed321;
    font-size: 1.3rem;
    margin-right: 1rem;
}

.promo-validity {
    background: rgba(220, 20, 60, 0.1);
    border-left: 4px solid #dc143c;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    border-radius: 8px;
}

.promo-validity i {
    color: #dc143c;
    margin-right: 0.5rem;
}

.btn-claim {
    background: linear-gradient(135deg, #7ed321 0%, #5fb800 100%);
    color: white;
    font-weight: 800;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    border: none;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    width: 100%;
    box-shadow: 0 8px 25px rgba(126, 211, 33, 0.3);
}

.btn-claim:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(126, 211, 33, 0.5);
    background: linear-gradient(135deg, #8fe432 0%, #6fc910 100%);
}

/* Terms Section */
.terms-section {
    background: #0a0a0a;
    padding: 4rem 0;
}

.terms-card {
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
    border-radius: 20px;
    padding: 2.5rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.terms-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: #dc143c;
    margin-bottom: 1.5rem;
}

.terms-list {
    list-style: none;
    padding: 0;
}

.terms-list li {
    padding: 0.8rem 0;
    padding-left: 2rem;
    position: relative;
    color: #cccccc;
    line-height: 1.6;
}

.terms-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #dc143c;
    font-size: 1.5rem;
    line-height: 1.6;
}

/* Footer */
.footer {
    background: #000000;
    padding: 3rem 0 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-text {
    color: #888888;
    margin-bottom: 0.5rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links li {
    display: block;
    margin: 0;
}

.footer-links a {
    color: #cccccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #dc143c;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.8s ease;
}

/* Responsive - Tablets (≤ 991px) */
@media (max-width: 991px) {
    .navbar-brand {
        font-size: 1.5rem;
        padding: 0.4rem 1.2rem;
    }

    .navbar-collapse {
        background: #0a0a0a;
        margin-top: 1rem;
        padding: 1rem;
        border-radius: 8px;
    }

    .navbar-nav {
        align-items: flex-start !important;
    }

    .nav-item {
        width: 100%;
        margin: 0.3rem 0 !important;
    }

    .nav-link {
        padding: 0.7rem 1rem;
        border-radius: 6px;
        margin: 0 !important;
        display: block;
    }

    .nav-link:hover {
        background: rgba(220, 20, 60, 0.1);
        transform: translateX(5px);
    }

    .btn-register,
    .btn-login {
        width: 100%;
        text-align: center;
        margin: 0.5rem 0 !important;
        padding: 0.8rem 1.5rem;
    }

    .hero-title {
        font-size: 2.8rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

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

    .promo-amount {
        font-size: 2.5rem;
    }
}

/* Responsive - Mobile (≤ 768px) */
@media (max-width: 768px) {
    .navbar {
        padding: 0.8rem 0;
    }

    .navbar-brand {
        font-size: 1.3rem;
        padding: 0.4rem 1rem;
    }

    .hero-section {
        padding: 3rem 0 2rem;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .promos-section,
    .terms-section {
        padding: 3rem 0;
    }

    .section-title {
        font-size: 1.8rem;
        margin-bottom: 2rem;
    }

    .promo-header {
        padding: 2rem;
    }

    .promo-icon {
        font-size: 3rem;
    }

    .promo-title {
        font-size: 1.5rem;
    }

    .promo-amount {
        font-size: 2rem;
    }

    .promo-body {
        padding: 1.5rem;
    }

    .btn-claim {
        padding: 0.9rem 2rem;
        font-size: 1rem;
    }

    .terms-card {
        padding: 1.5rem;
    }
}

/* Responsive - Smartphones pequenos (≤ 576px) */
@media (max-width: 576px) {
    .navbar-brand {
        font-size: 1.1rem;
        padding: 0.3rem 0.8rem;
        letter-spacing: 1px;
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .promo-badge {
        font-size: 0.75rem;
        padding: 0.4rem 1rem;
        top: 15px;
        right: 15px;
    }

    .promo-title {
        font-size: 1.3rem;
    }

    .promo-amount {
        font-size: 1.8rem;
    }

    .promo-icon {
        font-size: 2.5rem;
    }

    .terms-title {
        font-size: 1.5rem;
    }
}

/* Responsive - Extra pequenos (≤ 400px) */
@media (max-width: 400px) {
    .navbar-brand {
        font-size: 1rem;
        padding: 0.3rem 0.6rem;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.3rem;
    }
}