:root {
    --primary: #000000;
    --secondary: #9D4EDD;
    --accent: #6C22A6;
    --text: #ffffff;
    --dark-bg: #0A0A0A;
    --card-bg: #111111;
    --gradient: linear-gradient(135deg, #9D4EDD, #6C22A6);
    --subtle-neon: 0 0 5px rgba(157, 78, 221, 0.3);
    --medium-neon: 0 0 15px rgba(157, 78, 221, 0.5);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    background: var(--primary);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
}

/* Back Button */
.back-button {
    position: fixed;
    top: 20px;
    left: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    text-decoration: none;
    padding: 10px 20px;
    background: rgba(157, 78, 221, 0.1);
    border: 1px solid rgba(157, 78, 221, 0.2);
    border-radius: 8px;
    transition: all 0.3s ease;
    z-index: 100;
}

.back-button:hover {
    background: rgba(157, 78, 221, 0.2);
    transform: translateX(-5px);
}

/* Main Container */
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 20px 40px;
}

/* Progress Steps */
.progress-container {
    margin-bottom: 40px;
}

.progress-steps {
    display: flex;
    justify-content: space-between;
    margin-bottom: 30px;
    position: relative;
}

.step {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 1;
}

.step-icon {
    width: 50px;
    height: 50px;
    background: var(--card-bg);
    border: 2px solid rgba(157, 78, 221, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
    font-size: 1.2em;
    transition: all 0.3s ease;
}

.step.active .step-icon {
    background: var(--gradient);
    border-color: transparent;
    box-shadow: var(--medium-neon);
}

.step-label {
    font-size: 0.9em;
    color: rgba(255, 255, 255, 0.7);
    transition: all 0.3s ease;
}

.step.active .step-label {
    color: var(--secondary);
}

.progress-bar {
    height: 3px;
    background: rgba(157, 78, 221, 0.1);
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}

.progress {
    height: 100%;
    background: var(--gradient);
    width: 0;
    transition: width 0.5s ease;
}

/* Content Sections */
.step-content {
    display: none;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
}

.step-content.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.step-header {
    text-align: center;
    margin-bottom: 40px;
}

.step-header h1 {
    font-size: 2em;
    margin-bottom: 10px;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Form Styling */
.form-container {
    background: rgba(17, 17, 17, 0.7);
    backdrop-filter: blur(10px);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid rgba(157, 78, 221, 0.2);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.form-group.full {
    grid-column: 1 / -1;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.9);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px;
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(157, 78, 221, 0.2);
    border-radius: 8px;
    color: var(--text);
    font-size: 1em;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: var(--subtle-neon);
}

/* Shipping Options */
.shipping-options {
    margin: 30px 0;
    padding-top: 20px;
    border-top: 1px solid rgba(157, 78, 221, 0.2);
}

.shipping-options h3 {
    margin-bottom: 20px;
    color: var(--secondary);
}

.shipping-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
}

.shipping-option {
    cursor: pointer;
}

.shipping-option input {
    display: none;
}

.option-content {
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(157, 78, 221, 0.2);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all 0.3s ease;
}

.shipping-option input:checked + .option-content {
    border-color: var(--secondary);
    box-shadow: var(--subtle-neon);
    background: rgba(157, 78, 221, 0.1);
}

.option-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2em;
}

.option-details {
    flex: 1;
}

.option-name {
    display: block;
    font-weight: 600;
    margin-bottom: 5px;
}

.option-time {
    display: block;
    font-size: 0.9em;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 5px;
}

.option-price {
    display: block;
    color: var(--secondary);
    font-weight: 600;
}

/* Order Summary */
.order-summary {
    margin-top: 30px;
    padding: 20px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    border: 1px solid rgba(157, 78, 221, 0.2);
}

.summary-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(157, 78, 221, 0.1);
}

.summary-total {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
    padding-top: 15px;
    border-top: 2px solid rgba(157, 78, 221, 0.2);
    font-size: 1.2em;
    font-weight: 600;
}

.summary-total span:last-child {
    color: var(--secondary);
}

/* Payment Methods */
.payment-methods {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
    margin-bottom: 30px;
}

.payment-method {
    cursor: pointer;
}

.payment-method input {
    display: none;
}

.method-content {
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(157, 78, 221, 0.2);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all 0.3s ease;
}

.payment-method input:checked + .method-content {
    border-color: var(--secondary);
    box-shadow: var(--subtle-neon);
    background: rgba(157, 78, 221, 0.1);
}

/* Buttons */
.next-btn {
    width: 100%;
    padding: 15px;
    background: var(--gradient);
    color: var(--text);
    border: none;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s ease;
    margin-top: 30px;
}

.next-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--medium-neon);
}

.next-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* Confirmation Step */
.confirmation-container {
    text-align: center;
    padding: 40px;
    background: rgba(17, 17, 17, 0.7);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid rgba(157, 78, 221, 0.2);
}

.success-animation i {
    font-size: 5em;
    color: var(--secondary);
    margin-bottom: 20px;
    animation: scaleIn 0.5s ease;
}

.order-code-box {
    margin: 30px auto;
    padding: 20px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    max-width: 300px;
}

.code {
    font-size: 2em;
    font-weight: 600;
    color: var(--secondary);
    letter-spacing: 2px;
    margin: 15px 0;
}

.copy-btn {
    background: none;
    border: none;
    color: var(--text);
    cursor: pointer;
    padding: 8px;
    transition: all 0.3s ease;
}

.copy-btn:hover {
    color: var(--secondary);
    transform: scale(1.1);
}

.telegram-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    background: var(--gradient);
    color: var(--text);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    margin-top: 20px;
}

.telegram-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--medium-neon);
}

/* Animations */
@keyframes scaleIn {
    from {
        transform: scale(0);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* Responsive Design */
@media (min-width: 768px) {
    .form-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .shipping-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .payment-methods {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .payment-methods {
        grid-template-columns: repeat(3, 1fr);
    }

    .form-container {
        padding: 40px;
    }
}

/* Mobile Optimizations */
@media (max-width: 767px) {
    .back-button span {
        display: none;
    }

    .step-header h1 {
        font-size: 1.8em;
    }

    .form-container {
        padding: 20px;
    }

    .option-content,
    .method-content {
        padding: 15px;
    }

    .code {
        font-size: 1.5em;
    }
}
.download-section {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(157, 78, 221, 0.2);
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    background: var(--card-bg);
    color: var(--text);
    border: 2px solid var(--secondary);
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.download-btn:hover {
    background: var(--secondary);
    transform: translateY(-2px);
    box-shadow: var(--medium-neon);
}

.download-btn i {
    font-size: 1.2em;
}