* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Noto Sans Bengali', 'Hind Siliguri', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #ffffff;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-bottom: 50px;
}
.curved-header {
    background: linear-gradient(135deg, rgba(3, 181, 170, 0.9) 0%, rgba(2, 155, 146, 0.9) 100%), url('img_2.png');
    background-size: cover;
    background-position: center;
    border-radius: 0 0 60% 49% / 0 0 50% 50%;
    padding: 15px 20px 30px;
    text-align: center;
    position: relative;
    flex-shrink: 0;
}
.avatar {
    width: 100px;
    height: 100px;
    margin: 0 auto;
    background: white;
    border-radius: 70%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}
.container {
    max-width: 420px;
    margin: 0 auto;
    padding: 0 20px 20px;
    width: 100%;
    display: flex;
    flex-direction: column;
}
@media (max-width: 480px) {
    .curved-header {
        border-radius: 0 0 80% 80% / 0 0 40% 40%;
        padding: 15px 15px 30px;
    }
    .avatar {
        width: 100px;
        height: 100px;
    }
    .container {
        padding: 0 15px 15px;
    }
}
.notice-box {
    background: #ff6b6b;
    color: #ffffff;
    border: 1px solid #ff6b6b;
    border-radius: 18px;
    padding: 10px;
    margin: 15px auto 0;
    max-width: 220px;
    text-align: center;
    flex-shrink: 0;
    font-weight: 600;
    animation: pulse 2s infinite;
}
.notice-title {
    color: #ffffff;
    font-size: 19px;
    font-weight: 700;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.notice-text {
    color: #ffffff;
    font-size: 15px;
    font-weight: 700;
    margin: 12px auto 0;
    text-align: center;
    max-width: 380px;
    padding: 0 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    letter-spacing: 0.3px;
    line-height: 1.5;
}
@media (max-width: 480px) {
    .notice-box {
        padding: 8px 10px;
    }
    .notice-title {
        font-size: 12px;
    }
    .notice-text {
        font-size: 12.5px;
        margin: 12px auto 0;
    }
}
.illustration {
    text-align: center;
    margin: 10px 0 8px;
    flex-shrink: 0;
}
.illustration img {
    max-width: 140px;
    height: auto;
}
@media (max-width: 480px) {
    .illustration img {
        max-width: 120px;
    }
}
.form-card {
    background: white;
    border-radius: 16px;
    padding: 15px 18px 20px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    display: flex;
    flex-direction: column;
    margin-bottom: 15px;
}
@media (max-width: 480px) {
    .form-card {
        border-radius: 14px;
        padding: 12px 15px;
    }
}
.tabs {
    display: flex;
    background: #f5f5f5;
    border-radius: 10px;
    padding: 5px;
    margin-bottom: 10px;
    gap: 4px;
    flex-shrink: 0;
}
.tab {
    flex: 1;
    padding: 8px 5px;
    border: none;
    background: transparent;
    border-radius: 7px;
    font-size: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3px;
    color: #666;
    transition: all 0.3s;
}
@media (max-width: 480px) {
    .tab {
        font-size: 9px;
        padding: 7px 4px;
        gap: 2px;
    }
    .tab svg {
        width: 12px;
        height: 12px;
    }
}
.tab.active {
    background: white;
    color: #333;
    font-weight: 600;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.tab svg {
    width: 16px;
    height: 16px;
}
.tab-content {
    display: none;
    flex: 1;
}
.tab-content.active {
    display: flex;
    flex-direction: column;
}
.input-group {
    margin-bottom: 10px;
}
.input-field {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    font-size: 13px;
    background: #fafafa;
}
.input-field:focus {
    outline: none;
    border-color: #03b5aa;
    background: white;
}
.login-btn {
    width: 100%;
    padding: 13px;
    background: linear-gradient(135deg, #03b5aa 0%, #029b92 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 8px;
    box-shadow: 0 4px 12px rgba(3, 181, 170, 0.3);
    transition: all 0.3s ease;
    animation: fadeIn 1s ease;
}
@keyframes blink-updown {
    0%, 100% {
        transform: translateY(0);
        box-shadow: 0 4px 12px rgba(3, 181, 170, 0.3);
    }
    50% {
        transform: translateY(-5px);
        box-shadow: 0 8px 20px rgba(3, 181, 170, 0.5);
    }
}
@keyframes fadeIn {
    from {opacity: 0; transform: translateY(20px);}
    to {opacity: 1; transform: translateY(0);}
}
@keyframes fadeInOut {
    0%, 100% {
        opacity: 0.3;
    }
    50% {
        opacity: 1;
    }
}
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(198,40,40,0.4); }
    70% { box-shadow: 0 0 0 10px rgba(198,40,40,0); }
    100% { box-shadow: 0 0 0 0 rgba(198,40,40,0); }
}
.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(255, 80, 50, 0.25);
    animation: none;
}
.login-btn:active {
    transform: translateY(0);
}
.payment-note {
    color: #333;
    font-size: 11.2px;
    line-height: 1.5;
    margin: 10px 0 0;
    text-align: center;
    padding: 0 8px;
    font-weight: 500;
}
.error-msg {
    color: #f44336;
    font-size: 12px;
    margin-top: 8px;
    text-align: center;
}
.payment-message {
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: 10px;
    padding: 12px 14px;
    margin-bottom: 12px;
    text-align: center;
    flex-shrink: 0;
}
.payment-message p {
    color: #856404;
    font-size: 12px;
    line-height: 1.8;
    margin: 0;
    font-weight: 600;
    font-family: 'Noto Sans Bengali', 'Hind Siliguri', sans-serif;
    letter-spacing: 0.2px;
}
.payment-logos-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-bottom: 10px;
    flex-shrink: 0;
}
.payment-logo-box {
    background: white;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 45px;
    width: 100%;
    transition: all 0.3s;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}
.payment-logo-box:hover {
    border-color: #03b5aa;
    box-shadow: 0 4px 12px rgba(3, 181, 170, 0.25);
    transform: translateY(-2px);
}
.payment-logo-box img {
    max-width: 80%;
    max-height: 28px;
    width: auto;
    height: auto;
    object-fit: contain;
}
.packages-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    overflow-y: auto;
    flex: 1;
    padding: 8px;
}
.package-row {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1.2fr 0.8fr;
    align-items: center;
    border-radius: 12px;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border: 1px solid #e2e8f0;
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    overflow: hidden;
    min-height: 60px;
    padding: 16px 20px;
    position: relative;
}
.package-row:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.1);
    border-color: rgba(3, 181, 170, 0.4);
    background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
}
.package-name {
    font-size: 15px;
    font-weight: 700;
    color: #1e293b;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    text-align: left;
}

.package-speed {
    font-size: 14px;
    font-weight: 600;
    color: #64748b;
    text-align: center;
}

.package-price {
    font-size: 16px;
    font-weight: 700;
    color: #047857;
    text-align: center;
}
.package-whatsapp {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    border-radius: 50%;
    transition: all 0.3s ease;
    box-shadow: 0 3px 8px rgba(37, 211, 102, 0.25);
    margin: 0 auto;
}

.package-whatsapp:hover {
    transform: scale(1.08);
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.35);
}

.package-whatsapp svg {
    width: 18px;
    height: 18px;
    fill: white;
}
.package-row:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
}

/* Responsive design for package rows */
@media (max-width: 480px) {
    .packages-list {
        gap: 10px;
        padding: 6px;
    }
    
    .package-row {
        grid-template-columns: 1.8fr 1.3fr 1fr 0.7fr;
        min-height: 50px;
        padding: 12px 16px;
    }
    
    .package-name {
        font-size: 13px;
    }
    
    .package-speed {
        font-size: 12px;
    }
    
    .package-price {
        font-size: 14px;
    }
    
    .package-whatsapp {
        width: 32px;
        height: 32px;
    }
    
    .package-whatsapp svg {
        width: 16px;
        height: 16px;
    }
}
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 18px;
    overflow-y: auto;
    flex: 1;
    padding: 6px;
}
.contact-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border: none;
    border-radius: 14px;
    padding: 20px 20px;
    flex-shrink: 0;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    min-height: auto;
    text-align: center;
}
.contact-item:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12), 0 4px 8px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
    background: linear-gradient(135deg, #f5f5f5 0%, #eeeeee 100%);
}
.contact-item:active {
    transform: translateY(0);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}
.contact-icon {
    font-size: 32px;
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #d4f4f2 0%, #b3ede9 100%);
    border-radius: 50%;
    box-shadow: 0 3px 10px rgba(3, 181, 170, 0.25);
    position: relative;
}
.contact-icon::before,
.contact-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 80px;
    height: 2px;
    border-top: 2px dashed #d0d0d0;
}
.contact-icon::before {
    right: 100%;
    margin-right: 15px;
}
.contact-icon::after {
    left: 100%;
    margin-left: 15px;
}
.contact-details {
    flex: 1;
    min-width: 0;
    text-align: center;
}
.contact-label {
    font-size: 11px;
    color: #757575;
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}
.contact-value {
    font-size: 13px;
    color: #212121;
    font-weight: 600;
    word-break: break-word;
    line-height: 1.5;
}
.footer {
    background: #f5f5f5;
    padding: 12px 20px;
    text-align: center;
    border-top: 1px solid #e0e0e0;
    flex-shrink: 0;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
}
.footer p {
    margin: 0;
    font-size: 12px;
    color: #666;
    font-weight: 500;
}
@media (max-width: 480px) {
    .footer {
        padding: 10px 15px;
    }
    .footer p {
        font-size: 11px;
    }
}