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

:root {
    --primary-color: #FF6B35;
    --secondary-color: #4ECDC4;
    --text-dark: #2C3E50;
    --text-light: #7F8C8D;
    --bg-light: #F8F9FA;
    --white: #FFFFFF;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-hover: 0 8px 15px rgba(0, 0, 0, 0.12);
    --border-radius: 20px;
}

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
    color: var(--text-dark);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 8px;
}

/* Header Styles */
.header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: .4rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo-icon {
    font-size: 2rem;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Menu Overlay */
.menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.menu-overlay.active {
    display: block;
    opacity: 1;
}

/* Hero Section */
.hero {
    padding: 3rem 0;
    text-align: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Rewards Section */
.rewards-section {
    padding: 3rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.section-header h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.section-header p {
    color: var(--text-light);
    font-size: 1rem;
}

/* Rewards List */
.rewards-list {
    display: grid;
    gap: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
}

.reward-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    cursor: pointer;
}

.reward-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.reward-card:active {
    transform: translateY(-2px);
}

.reward-icon-wrapper {
    flex-shrink: 0;
}

.reward-icon {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
}

.reward-icon.dice {
    background: linear-gradient(135deg, #e8d4f8 0%, #d4b5e8 100%);
}

.reward-icon.gift {
    background: linear-gradient(135deg, #d4f4dd 0%, #b5e8c4 100%);
}

.reward-icon.coins {
    background: linear-gradient(135deg, #f8e8d4 0%, #e8d4b5 100%);
}

.reward-info {
    flex: 1;
}

.reward-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.3rem;
}

.reward-date {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-light);
    font-size: 0.95rem;
}

.calendar-icon {
    font-size: 1rem;
}

.collect-btn {
    background: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Poppins', sans-serif;
    flex-shrink: 0;
    white-space: nowrap;
}

.collect-btn:hover {
    background: #ff5722;
    transform: scale(1.05);
}

.collect-btn:active {
    transform: scale(0.98);
}

.collect-btn.collected {
    background: #95a5a6;
    cursor: pointer;
}

.collect-btn.collected:hover {
    background: #7f8c8d;
}

.no-rewards {
    text-align: center;
    padding: 3rem;
    color: var(--text-light);
}

/* Inline Ad Cards */
.ad-card {
    background: var(--bg-light);
    border-radius: var(--border-radius);
    padding: 1rem;
    box-shadow: var(--shadow);
}

.ad-placeholder-inline {
    background: #f7f9fc;
    border: 2px dashed #cbd5e0;
    border-radius: 12px;
    padding: 2rem 1.5rem;
    text-align: center;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.ad-placeholder-inline p {
    color: #a0aec0;
    font-size: 1rem;
    font-weight: 600;
    margin: 0;
}

/* Features Section */
.features-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.features-header {
    text-align: center;
    margin-bottom: 4rem;
}

.features-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.features-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
}

.feature-icon-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon {
    width: 70px;
    height: 70px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.feature-icon svg {
    width: 35px;
    height: 35px;
}

.feature-icon.purple {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.feature-icon.orange {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.feature-icon.green {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.feature-icon.blue {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.feature-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.feature-description {
    color: var(--text-light);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* About Section */
.about-section {
    padding: 5rem 0;
    background: var(--white);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text {
    padding: 0 1rem;
}

.about-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    line-height: 1.3;
}

.about-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.about-paragraph {
    font-size: 1.05rem;
    line-height: 1.8;
    color: #4a5568;
    margin-bottom: 1.5rem;
}

.about-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

.about-list li {
    padding: 1rem 1.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
    font-size: 1rem;
    line-height: 1.6;
    color: #4a5568;
    transition: all 0.3s ease;
}

.about-list li:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.about-list li strong {
    color: var(--text-dark);
    font-weight: 600;
}

/* Footer */
.footer {
    background: #2C3E50;
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-section p {
    color: #BDC3C7;
    line-height: 1.8;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: #BDC3C7;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.disclaimer-text {
    font-size: 0.9rem;
}

.footer-bottom {
    border-top: 1px solid #34495E;
    padding-top: 1.5rem;
    text-align: center;
    color: #BDC3C7;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .hero-title {
        font-size: 1.8rem;
    }

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

    .hamburger {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 250px;
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease;
        gap: 1.5rem;
        z-index: 1000;
        height: calc(100vh - 70px);
    }

    .nav.active {
        right: 0;
    }

    .nav-link {
        font-size: 1rem;
        padding: 0.5rem 0;
        border-bottom: 1px solid var(--bg-light);
    }

    .rewards-section {
        padding: 1.5rem 0;
    }

    .section-header {
        margin-bottom: 1.5rem;
    }

    .section-header h2 {
        font-size: 1.5rem;
        line-height: 1.2;
    }

    .reward-card {
        padding: 1rem;
        gap: 0.8rem;
        flex-wrap: nowrap;
    }

    .reward-icon {
        width: 65px;
        height: 65px;
        font-size: 2rem;
        flex-shrink: 0;
    }

    .reward-info {
        min-width: 0;
        flex: 1;
    }

    .reward-title {
        font-size: 1.15rem;
        line-height: 1.3;
    }

    .reward-date {
        font-size: 0.85rem;
    }

    .collect-btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.95rem;
        flex-shrink: 0;
    }

    .ad-placeholder-inline {
        padding: 1.5rem 1rem;
        min-height: 150px;
    }

    .ad-placeholder-inline p {
        font-size: 0.9rem;
    }

    .features-section {
        padding: 3rem 0;
    }

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

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

    .features-header {
        margin-bottom: 2.5rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .feature-card {
        padding: 2rem 1.5rem;
    }

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

    .about-section {
        padding: 3rem 0;
    }

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

    .about-subtitle {
        font-size: 1.3rem;
        margin-top: 2rem;
    }

    .about-paragraph {
        font-size: 1rem;
    }

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

@media (max-width: 480px) {
    .logo-text {
        font-size: 1.2rem;
    }

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

    .rewards-section {
        padding: 1rem 0;
    }

    .section-header {
        margin-bottom: 1rem;
    }

    .section-header h2 {
        font-size: 1.3rem;
        line-height: 1.2;
    }

    .reward-card {
        padding: 0.9rem;
        gap: 0.7rem;
        flex-wrap: nowrap;
    }

    .reward-icon {
        width: 55px;
        height: 55px;
        font-size: 1.6rem;
        flex-shrink: 0;
    }

    .reward-info {
        min-width: 0;
        flex: 1;
    }

    .reward-title {
        font-size: 1rem;
        line-height: 1.3;
    }

    .reward-date {
        font-size: 0.8rem;
    }

    .collect-btn {
        padding: 0.65rem 1.2rem;
        font-size: 0.9rem;
        white-space: nowrap;
        flex-shrink: 0;
    }

    .calendar-icon {
        font-size: 0.9rem;
    }

    .ad-card {
        padding: 0.5rem;
    }

    .ad-placeholder-inline {
        padding: 1.5rem 0.75rem;
        min-height: 120px;
    }

    .ad-placeholder-inline p {
        font-size: 0.85rem;
    }

    .features-section {
        padding: 2rem 0;
    }

    .features-title {
        font-size: 1.75rem;
    }

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

    .features-header {
        margin-bottom: 2rem;
    }

    .feature-card {
        padding: 1.75rem 1.25rem;
    }

    .feature-icon {
        width: 60px;
        height: 60px;
    }

    .feature-icon svg {
        width: 30px;
        height: 30px;
    }

    .feature-title {
        font-size: 1.2rem;
    }

    .feature-description {
        font-size: 0.9rem;
    }

    .about-section {
        padding: 2rem 0;
    }

    .about-title {
        font-size: 1.75rem;
    }

    .about-subtitle {
        font-size: 1.2rem;
    }

    .about-paragraph {
        font-size: 0.95rem;
    }

    .about-list li {
        padding: 0.875rem 1rem;
        font-size: 0.9rem;
    }
}