:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #141414;
    --bg-card: #1a1a1a;
    --bg-hover: #242424;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #808080;
    --accent-primary: #ffffff;
    --accent-secondary: #e0e0e0;
    --accent-warning: #ff4444;
    --accent-danger: #ff3333;
    --border-color: #333333;
    --shadow: rgba(0, 0, 0, 0.5);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* AD BANNER */
.ad-banner {
    background-color: var(--accent-warning);
    color: var(--bg-primary);
    text-align: center;
    padding: 12px 20px;
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.5px;
    position: relative;
    z-index: 1000;
}

/* HEADER */
.header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 999;
    transition: var(--transition);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo-text {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.logo-text:hover {
    opacity: 0.8;
}

.nav {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition);
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition);
}

/* HERO SECTION */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(255, 255, 255, 0.03) 0%, transparent 50%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, var(--bg-primary) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    padding: 40px 20px;
}

.hero-title {
    font-size: clamp(42px, 8vw, 72px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -2px;
}

.hero-subtitle {
    font-size: clamp(18px, 2.5vw, 22px);
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-weight: 400;
    line-height: 1.5;
}

.btn {
    display: inline-block;
    padding: 16px 40px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    font-family: inherit;
}

.btn-primary {
    background-color: var(--text-primary);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background-color: var(--accent-secondary);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--shadow);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-card);
    border-color: var(--text-primary);
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.hero-scroll-indicator span {
    display: block;
    width: 2px;
    height: 40px;
    background: var(--text-secondary);
    animation: scroll 2s ease-in-out infinite;
}

@keyframes scroll {
    0%, 100% { opacity: 0; transform: translateY(0); }
    50% { opacity: 1; transform: translateY(10px); }
}

/* PRODUCT SECTION */
.product-section {
    padding: 100px 0;
    background-color: var(--bg-secondary);
}

.product-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.product-content:not(.revealed) {
    opacity: 0;
    transform: translateY(30px);
}

.product-content.revealed {
    opacity: 1;
    transform: translateY(0);
    transition: all 0.8s ease-out;
}

.product-image-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    overflow: hidden;
    border: 1px solid var(--border-color);
    background-color: var(--bg-card);
}

.product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-image:hover {
    transform: scale(1.05);
}

.product-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.product-title {
    font-size: clamp(32px, 4vw, 42px);
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 8px;
}

.product-description {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.7;
}

.product-price {
    display: flex;
    align-items: baseline;
    gap: 12px;
    padding: 24px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    margin-top: 8px;
}

.price-label {
    color: var(--text-secondary);
    font-size: 16px;
    font-weight: 500;
}

.price-value {
    color: var(--text-primary);
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -1px;
}

.price-note {
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 400;
}

.product-cta {
    margin-top: 8px;
    text-align: center;
    max-width: 300px;
}

/* FADE IN ANIMATIONS */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease-out forwards;
}

.fade-in-up:nth-child(1) { animation-delay: 0.1s; }
.fade-in-up:nth-child(2) { animation-delay: 0.3s; }
.fade-in-up:nth-child(3) { animation-delay: 0.5s; }

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

/* INFO SECTION */
.info-section,
.story-section,
.faq-section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: clamp(36px, 5vw, 48px);
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.section-description {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* CARDS GRID */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-top: 60px;
}

.card {
    background-color: var(--bg-card);
    padding: 40px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    opacity: 0;
    transform: translateY(30px);
}

.card.reveal-on-scroll {
    opacity: 1;
    transform: translateY(0);
}

.card:hover {
    transform: translateY(-8px);
    border-color: var(--text-primary);
    box-shadow: 0 12px 40px var(--shadow);
}

.card-icon {
    color: var(--text-primary);
    margin-bottom: 24px;
}

.card-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
}

.card-text {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 16px;
}

/* STORY SECTION */
.story-content {
    max-width: 800px;
    margin: 0 auto;
    opacity: 0;
    transform: translateY(30px);
}

.story-content.reveal-on-scroll {
    opacity: 1;
    transform: translateY(0);
}

.story-title {
    font-size: clamp(32px, 4vw, 42px);
    font-weight: 700;
    margin-bottom: 40px;
    letter-spacing: -1px;
}

.story-text p {
    color: var(--text-secondary);
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 24px;
}

/* FAQ SECTION */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    margin-bottom: 16px;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
}

.faq-item.reveal-on-scroll {
    opacity: 1;
    transform: translateY(0);
}

.faq-question {
    width: 100%;
    padding: 24px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
    font-family: inherit;
}

.faq-question:hover {
    background-color: var(--bg-hover);
}

.faq-icon {
    font-size: 24px;
    font-weight: 300;
    transition: var(--transition);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 24px 24px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* DISCLAIMER SECTION */
.disclaimer-section {
    padding: 80px 0;
    background-color: var(--accent-warning);
    color: var(--bg-primary);
}

.disclaimer-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.disclaimer-title {
    font-size: clamp(32px, 4vw, 42px);
    font-weight: 700;
    margin-bottom: 32px;
}

.disclaimer-text {
    font-size: 18px;
    line-height: 1.8;
}

.disclaimer-text p {
    margin-bottom: 16px;
}

.disclaimer-text strong {
    font-weight: 700;
}

/* FOOTER */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.footer-text {
    color: var(--text-secondary);
    font-size: 14px;
}

.footer-heading {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 14px;
}

/* ORDER FORM */
.order-section {
    padding: 80px 0;
    min-height: 80vh;
}

.order-header {
    text-align: center;
    margin-bottom: 60px;
}

.order-title {
    font-size: clamp(32px, 4vw, 42px);
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.order-description {
    color: var(--text-secondary);
    font-size: 18px;
}

/* PROGRESS INDICATOR */
.progress-indicator {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 60px;
    gap: 16px;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}

.progress-circle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--bg-card);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--text-secondary);
    transition: var(--transition);
}

.progress-step.active .progress-circle {
    background-color: var(--text-primary);
    color: var(--bg-primary);
    border-color: var(--text-primary);
}

.progress-step.completed .progress-circle {
    background-color: var(--accent-secondary);
    color: var(--bg-primary);
    border-color: var(--accent-secondary);
}

.progress-label {
    margin-top: 8px;
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

.progress-step.active .progress-label {
    color: var(--text-primary);
}

.progress-line {
    width: 100px;
    height: 2px;
    background-color: var(--border-color);
    margin: 0 8px;
}

.progress-step.active ~ .progress-step .progress-line {
    background-color: var(--border-color);
}

.progress-step.completed .progress-line {
    background-color: var(--accent-secondary);
}

/* FORM STEPS */
.order-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-step {
    display: none;
    animation: fadeIn 0.3s ease-out;
}

.form-step.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.form-step-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 32px;
}

.form-group {
    margin-bottom: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 16px;
    font-family: inherit;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--text-primary);
    background-color: var(--bg-hover);
}

.form-input:invalid:not(:placeholder-shown) {
    border-color: var(--accent-danger);
}

.form-input:valid:not(:placeholder-shown) {
    border-color: #4ade80;
}

.form-error {
    display: block;
    color: var(--accent-danger);
    font-size: 12px;
    margin-top: 6px;
    min-height: 18px;
}

.form-actions {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 40px;
}

.payment-summary {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 24px;
    margin-bottom: 32px;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    color: var(--text-secondary);
    font-size: 16px;
}

.summary-total {
    display: flex;
    justify-content: space-between;
    padding-top: 16px;
    margin-top: 16px;
    border-top: 1px solid var(--border-color);
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.success-message {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    padding: 60px 20px;
}

.success-content svg {
    color: #4ade80;
    margin-bottom: 24px;
}

.success-content h2 {
    font-size: 28px;
    margin-bottom: 16px;
}

.success-content p {
    color: var(--text-secondary);
    font-size: 18px;
    margin-bottom: 32px;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-secondary);
        flex-direction: column;
        padding: 20px;
        border-top: 1px solid var(--border-color);
        gap: 16px;
    }

    .nav.active {
        display: flex;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero {
        min-height: 70vh;
    }

    .product-section {
        padding: 60px 0;
    }

    .product-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .product-image-wrapper {
        max-width: 500px;
        margin: 0 auto;
    }

    .product-cta {
        max-width: 100%;
    }

    .info-section,
    .story-section,
    .faq-section {
        padding: 60px 0;
    }

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .progress-indicator {
        flex-wrap: wrap;
    }

    .progress-line {
        width: 40px;
    }

    .progress-label {
        font-size: 12px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}