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

:root {
    --primary-color: #ff6b35;
    --secondary-color: #f7931e;
    --dark-bg: #0a0e27;
    --card-bg: #1a1f3a;
    --text-primary: #ffffff;
    --text-secondary: #a8b2d1;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-4: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
}

/* Animated Background */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.circle {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s infinite ease-in-out;
}

.circle-1 {
    width: 500px;
    height: 500px;
    background: #667eea;
    top: -200px;
    left: -100px;
    animation-delay: 0s;
}

.circle-2 {
    width: 400px;
    height: 400px;
    background: #f5576c;
    bottom: -150px;
    right: -100px;
    animation-delay: 5s;
}

.circle-3 {
    width: 350px;
    height: 350px;
    background: #43e97b;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(50px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-30px, 30px) scale(0.9);
    }
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    padding: 20px 0;
    text-align: center;
}

.logo-text {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #f5576c 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
    animation: glow 2s ease-in-out infinite;
}

.logo-text span {
    background: linear-gradient(135deg, #f5576c 0%, #43e97b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@keyframes glow {
    0%, 100% {
        filter: drop-shadow(0 0 20px rgba(102, 126, 234, 0.5));
    }
    50% {
        filter: drop-shadow(0 0 30px rgba(245, 87, 108, 0.8));
    }
}

/* Main Content */
.main-content {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    padding: 40px 0;
}

/* Center Section */
.center-section {
    display: flex;
    justify-content: center;
    align-items: center;
}

.welcome-content {
    text-align: center;
    animation: fadeInUp 1s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.main-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
    background: linear-gradient(135deg, #ffffff 0%, #a8b2d1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-weight: 300;
}

/* Buttons */
.button-group {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.btn {
    position: relative;
    padding: 18px 50px;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
    font-family: 'Poppins', sans-serif;
    text-decoration: none;
    display: inline-block;
}

.btn span {
    position: relative;
    z-index: 2;
}

.btn-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover .btn-glow {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.6);
}

.btn-secondary {
    background: var(--gradient-2);
    color: white;
    box-shadow: 0 10px 30px rgba(245, 87, 108, 0.4);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(245, 87, 108, 0.6);
}

.btn:active {
    transform: translateY(-1px);
}

/* Features */
.features {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    min-width: 120px;
}

.feature-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.feature-icon {
    font-size: 2.5rem;
    filter: drop-shadow(0 5px 10px rgba(0, 0, 0, 0.3));
}

.feature-item span {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
}

/* Right Section - Advertisement Slider */
.right-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.ad-slider-container {
    position: relative;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 30px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 40px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.ad-slider {
    position: relative;
    height: 350px;
}

.ad-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transform: translateX(100%) scale(0.8);
    transition: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.ad-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.ad-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
    opacity: 0.3;
}

.ad-slide.active {
    opacity: 1;
    transform: translateX(0) scale(1);
}

.ad-slide.prev {
    transform: translateX(-100%) scale(0.8);
}

.ad-content {
    text-align: center;
    padding: 40px;
    position: relative;
    z-index: 1;
}

.ad-badge {
    display: inline-block;
    padding: 10px 25px;
    background: var(--gradient-1);
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 25px;
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.ad-slide:nth-child(2) .ad-badge {
    background: var(--gradient-2);
    box-shadow: 0 5px 20px rgba(245, 87, 108, 0.4);
}

.ad-slide:nth-child(3) .ad-badge {
    background: var(--gradient-3);
    box-shadow: 0 5px 20px rgba(79, 172, 254, 0.4);
}

.ad-slide:nth-child(4) .ad-badge {
    background: var(--gradient-4);
    box-shadow: 0 5px 20px rgba(67, 233, 123, 0.4);
}

.ad-content h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #ffffff 0%, #a8b2d1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ad-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Slider Indicators */
.slider-indicators {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 20px;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator:hover {
    background: rgba(255, 255, 255, 0.5);
}

.indicator.active {
    width: 35px;
    border-radius: 10px;
    background: var(--gradient-1);
}

/* Promo Cards */
.promo-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.promo-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 25px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.promo-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.promo-icon {
    font-size: 2rem;
    margin-bottom: 10px;
}

.promo-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
}

/* Footer */
.footer {
    text-align: center;
    padding: 30px 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 40px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal.active {
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 30px;
    padding: 40px;
    max-width: 450px;
    width: 90%;
    position: relative;
    animation: slideUp 0.4s ease;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.close {
    position: absolute;
    right: 25px;
    top: 20px;
    font-size: 2rem;
    font-weight: 300;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.close:hover {
    color: var(--text-primary);
    transform: rotate(90deg);
}

.modal-content h2 {
    margin-bottom: 30px;
    font-size: 2rem;
    text-align: center;
}

.form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group input {
    width: 100%;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: 'Poppins', sans-serif;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
}

.form-group input::placeholder {
    color: var(--text-secondary);
}

.forgot-link {
    text-align: center;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

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

/* Responsive Design */
@media (max-width: 1024px) {
    .main-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .main-title {
        font-size: 2.5rem;
    }

    .ad-slider {
        height: 300px;
    }

    .ad-content h3 {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .logo-text {
        font-size: 2rem;
    }

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

    .subtitle {
        font-size: 1rem;
    }

    .button-group {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

    .features {
        gap: 15px;
    }

    .feature-item {
        min-width: 100px;
        padding: 15px;
    }

    .ad-slider-container {
        padding: 25px;
    }

    .ad-slider {
        height: 280px;
    }

    .ad-content h3 {
        font-size: 1.8rem;
    }

    .ad-content p {
        font-size: 1rem;
    }

    .promo-cards {
        grid-template-columns: 1fr;
    }

    .modal-content {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 15px;
    }

    .logo-text {
        font-size: 1.8rem;
    }

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

    .subtitle {
        font-size: 0.95rem;
    }

    .btn {
        padding: 15px 40px;
        font-size: 1rem;
    }

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

    .feature-item span {
        font-size: 0.8rem;
    }

    .ad-slider {
        height: 250px;
    }

    .ad-content {
        padding: 20px;
    }

    .ad-content h3 {
        font-size: 1.5rem;
    }

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

    .ad-badge {
        font-size: 0.8rem;
        padding: 8px 20px;
    }
}