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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    min-height: 100vh;
    color: white;
    overflow-x: hidden;
}

.container {
    max-width: 100%;
    margin: 0 auto;
    min-height: 100vh;
    position: relative;
    padding: 20px;
}

@media (min-width: 768px) {
    .container {
        max-width: 1200px;
        padding: 40px;
    }
}

/* Header */
.header {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 30px;
}

.header-icons {
    display: flex;
    gap: 15px;
}

.icon-item {
    cursor: pointer;
    transition: transform 0.2s;
}

.icon-item:hover {
    transform: scale(1.1);
}

/* Hero Section */
.hero-section {
    text-align: center;
    margin-bottom: 40px;
}

@media (min-width: 768px) {
    .hero-section {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 60px;
        margin-bottom: 60px;
    }
}

.logo-container {
    position: relative;
    display: inline-block;
    margin-bottom: 20px;
}

.logo-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.6) 0%, rgba(59, 130, 246, 0) 70%);
    filter: blur(20px);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.8;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

.logo {
    position: relative;
    z-index: 1;
}

.hero-text h1 {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.5;
    color: #e2e8f0;
    text-align: center;
}

@media (min-width: 768px) {
    .hero-text h1 {
        font-size: 32px;
        text-align: left;
        line-height: 1.4;
    }
    
    .logo-container {
        margin-bottom: 0;
    }
    
    .logo svg {
        width: 120px;
        height: 120px;
    }
    
    .logo-glow {
        width: 180px;
        height: 180px;
    }
}

/* Welfare Banner */
.welfare-banner {
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    border-radius: 12px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

@media (min-width: 768px) {
    .welfare-banner {
        padding: 18px 24px;
        border-radius: 16px;
        margin-bottom: 30px;
    }
}

.welfare-content {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
}

.welfare-text {
    font-size: 13px;
    color: white;
    font-weight: 500;
}

@media (min-width: 768px) {
    .welfare-text {
        font-size: 16px;
    }
    
    .welfare-content svg {
        width: 28px;
        height: 28px;
    }
}

.invite-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    padding: 6px 12px;
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    transition: all 0.3s;
    color: white;
    font-size: 12px;
}

.invite-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.status-label {
    background: rgba(34, 197, 94, 0.9);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 11px;
    margin-left: 8px;
    font-weight: 500;
}

/* DCPTG Card */
.dcptg-card {
    background: linear-gradient(135deg, #059669 0%, #10b981 100%);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 25px;
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.3);
    position: relative;
    overflow: hidden;
}

@media (min-width: 768px) {
    .dcptg-card {
        padding: 30px;
        border-radius: 20px;
        margin-bottom: 40px;
    }
}

.dcptg-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
    transform: rotate(45deg);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-logo {
    display: flex;
    align-items: center;
}

.card-icon {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 8px;
    padding: 8px 16px;
    font-size: 16px;
    font-weight: bold;
    color: white;
    letter-spacing: 1px;
}

@media (min-width: 768px) {
    .card-icon {
        font-size: 20px;
        padding: 12px 24px;
    }
}

.earn-btn {
    background: rgba(255, 255, 255, 0.25);
    border: none;
    border-radius: 20px;
    padding: 10px 16px;
    color: white;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

@media (min-width: 768px) {
    .earn-btn {
        font-size: 14px;
        padding: 12px 20px;
    }
}

.earn-btn:hover {
    background: rgba(255, 255, 255, 0.35);
    transform: translateX(2px);
}

/* Statistics Section */
.stats-section {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 30px;
}

@media (min-width: 768px) {
    .stats-section {
        gap: 25px;
        margin-bottom: 140px;
    }
}

.stat-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 16px 12px;
    text-align: center;
    transition: all 0.3s;
}

@media (min-width: 768px) {
    .stat-item {
        padding: 24px 20px;
        border-radius: 16px;
    }
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
}

.stat-value {
    font-size: 16px;
    font-weight: 600;
    color: #e2e8f0;
    margin-bottom: 6px;
}

@media (min-width: 768px) {
    .stat-value {
        font-size: 22px;
        margin-bottom: 8px;
    }
}

.stat-change {
    font-size: 12px;
    font-weight: 500;
}

@media (min-width: 768px) {
    .stat-change {
        font-size: 14px;
    }
}

.stat-change.positive {
    color: #22c55e;
}

.stat-change.negative {
    color: #ef4444;
}

/* Bottom Navigation */
.bottom-nav {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 15px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 20px 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    max-width: 374px;
    width: calc(100% - 40px);
}

@media (min-width: 768px) {
    .bottom-nav {
        position: static;
        transform: none;
        max-width: 100%;
        width: 100%;
        padding: 30px 20px;
        gap: 30px;
        border-radius: 24px;
        grid-template-columns: repeat(5, 1fr);
    }
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: transform 0.2s;
}

.nav-item:hover {
    transform: translateY(-3px);
}

.nav-item span {
    font-size: 11px;
    color: #cbd5e1;
    font-weight: 500;
}

@media (min-width: 768px) {
    .nav-item span {
        font-size: 14px;
    }
    
    .nav-icon svg {
        width: 40px;
        height: 40px;
    }
}

.nav-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s;
}

.nav-icon:hover {
    transform: scale(1.1);
}

/* Responsive adjustments */
@media (max-width: 414px) {
    .container {
        padding: 15px;
    }
    
    .hero-text h1 {
        font-size: 16px;
    }
    
    .stat-value {
        font-size: 14px;
    }
    
    .nav-item span {
        font-size: 10px;
    }
}

/* Additional polish */
button {
    font-family: inherit;
}

svg {
    display: block;
}