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

:root {
    --black: #000000;
    --white: #ffffff;
    --silver: #c0c0c0;
    --light-silver: #e5e5e5;
    --dark-silver: #8e8e93;
    --gradient-silver: linear-gradient(135deg, #e5e5e5 0%, #c0c0c0 100%);
    --shadow-soft: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-medium: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-large: 0 30px 60px rgba(0, 0, 0, 0.12);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: var(--black);
    background: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
.hero-title {
    font-size: clamp(2.5rem, 8vw, 5.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.05;
    margin-bottom: 1.5rem;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-bottom: 2rem;
    text-align: center;
}

.subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    font-weight: 400;
    color: var(--dark-silver);
    line-height: 1.4;
    text-align: center;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: all 0.3s ease;
}

nav.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-soft);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo img {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    margin: 0;
    padding: 0;
    align-items: center;
}

.nav-menu li {
    margin: 0;
}

.nav-menu a {
    text-decoration: none;
    color: var(--black);
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--black);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-menu a:hover {
    color: var(--dark-silver);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--black);
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.nav-cta {
    padding: 0.8rem 2rem;
    background: var(--black);
    color: var(--white);
    border: none;
    border-radius: 100px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.nav-cta:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-medium);
}

/* Desktop Navigation */
@media (min-width: 769px) {
    .nav-menu {
        display: flex !important;
        opacity: 1 !important;
        pointer-events: all !important;
        transform: none !important;
        position: static !important;
        background: transparent !important;
        backdrop-filter: none !important;
        box-shadow: none !important;
        padding: 0 !important;
    }
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 6rem 2rem 4rem;
    background: linear-gradient(135deg, var(--white) 0%, var(--light-silver) 100%);
    overflow: hidden;
}

.hero-content {
    max-width: 1200px;
    text-align: center;
    z-index: 2;
    position: relative;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: var(--black);
    color: var(--white);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 2rem;
    animation: fadeInUp 0.8s ease;
}

.hero-title span {
    background: linear-gradient(135deg, var(--black) 0%, var(--dark-silver) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-cta {
    display: inline-block;
    margin-top: 2rem;
    padding: 1.2rem 3rem;
    background: var(--black);
    color: var(--white);
    text-decoration: none;
    border-radius: 100px;
    font-size: 1.1rem;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: var(--shadow-medium);
}

.hero-cta:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-large);
}

/* Floating Elements */
.floating-element {
    position: absolute;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(192, 192, 192, 0.1) 0%, rgba(192, 192, 192, 0.05) 100%);
    backdrop-filter: blur(10px);
    animation: float 6s ease-in-out infinite;
}

.floating-element:nth-child(1) {
    width: 300px;
    height: 300px;
    top: 10%;
    left: -150px;
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    width: 200px;
    height: 200px;
    top: 60%;
    right: -100px;
    animation-delay: 2s;
}

.floating-element:nth-child(3) {
    width: 150px;
    height: 150px;
    bottom: 10%;
    left: 10%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -30px) rotate(120deg); }
    66% { transform: translate(-20px, 20px) rotate(240deg); }
}

/* Benefits Section */
.benefits {
    padding: 8rem 2rem;
    background: var(--white);
}

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

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 4rem;
}

.benefit-card {
    padding: 3rem 2rem;
    background: linear-gradient(135deg, var(--white) 0%, #fafafa 100%);
    border: 1px solid var(--light-silver);
    border-radius: 24px;
    text-align: center;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(30px);
}

.benefit-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.benefit-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-large);
    border-color: var(--silver);
}

.benefit-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 2rem;
    background: var(--gradient-silver);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--black);
    transition: all 0.3s ease;
}

.benefit-icon svg {
    width: 40px;
    height: 40px;
}

.benefit-card:hover .benefit-icon {
    background: linear-gradient(135deg, var(--black) 0%, #333 100%);
    color: var(--white);
    transform: scale(1.1);
}

.benefit-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--black);
}

.benefit-description {
    color: var(--dark-silver);
    line-height: 1.6;
}

/* Stats Section */
.stats {
    padding: 6rem 2rem;
    background: var(--black);
    color: var(--white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    text-align: center;
}

.stat-item {
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.6s ease;
}

.stat-item.visible {
    opacity: 1;
    transform: scale(1);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    background: var(--gradient-silver);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 1.1rem;
    color: var(--silver);
    margin-top: 0.5rem;
}

/* Products Showcase */
.showcase {
    padding: 8rem 2rem;
    background: linear-gradient(180deg, var(--white) 0%, var(--light-silver) 100%);
}

.showcase-carousel {
    display: flex;
    gap: 2rem;
    overflow-x: auto;
    padding: 2rem 0;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}

.showcase-carousel::-webkit-scrollbar {
    height: 8px;
}

.showcase-carousel::-webkit-scrollbar-track {
    background: var(--light-silver);
    border-radius: 100px;
}

.showcase-carousel::-webkit-scrollbar-thumb {
    background: var(--dark-silver);
    border-radius: 100px;
}

.showcase-item {
    min-width: 350px;
    height: 400px;
    background: var(--white);
    border-radius: 24px;
    padding: 2rem;
    scroll-snap-align: center;
    box-shadow: var(--shadow-medium);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateX(50px);
}

.showcase-item.visible {
    opacity: 1;
    transform: translateX(0);
}

.showcase-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-large);
}

.showcase-image {
    width: 200px;
    height: 200px;
    background: var(--gradient-silver);
    border-radius: 20px;
    margin-bottom: 2rem;
}

.showcase-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.showcase-description {
    color: var(--dark-silver);
    text-align: center;
}

/* Form Section */
.form-section {
    padding: 8rem 2rem;
    background: linear-gradient(180deg, #fafafa 0%, var(--white) 50%, #fafafa 100%);
    position: relative;
    overflow: hidden;
}

.form-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(192, 192, 192, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(192, 192, 192, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.form-container {
    max-width: 700px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: 40px;
    padding: 4.5rem 4rem;
    box-shadow: 0 20px 80px rgba(0, 0, 0, 0.08),
                0 8px 32px rgba(0, 0, 0, 0.04),
                inset 0 1px 0 rgba(255, 255, 255, 0.8);
    position: relative;
}

.form-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg,
        var(--black) 0%,
        var(--silver) 50%,
        var(--black) 100%);
    border-radius: 40px 40px 0 0;
}

.form-step {
    display: none;
    animation: fadeInUp 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

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

.form-progress {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 3.5rem;
    justify-content: center;
}

.progress-dot {
    flex: 1;
    max-width: 60px;
    height: 6px;
    background: linear-gradient(135deg, #f0f0f0 0%, #e5e5e5 100%);
    border-radius: 100px;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
}

.progress-dot::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
    transition: left 0.5s;
}

.progress-dot.active {
    background: linear-gradient(135deg, var(--black) 0%, #333 100%);
    transform: scaleY(1.3);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.progress-dot.active::before {
    left: 100%;
}

.form-question {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 2.5rem;
    line-height: 1.3;
    background: linear-gradient(135deg, var(--black) 0%, #333 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 1.4rem 1.8rem;
    border: 2px solid transparent;
    background: linear-gradient(var(--white), var(--white)) padding-box,
                linear-gradient(135deg, #e5e5e5, #f0f0f0) border-box;
    border-radius: 20px;
    font-size: 1.1rem;
    margin-bottom: 1.2rem;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    font-family: inherit;
}

.form-select {
    padding-right: 3rem;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background: linear-gradient(var(--white), var(--white)) padding-box,
                linear-gradient(135deg, #e5e5e5, #f0f0f0) border-box;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23000000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1.2rem center;
    background-size: 1.2rem;
    cursor: pointer;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    background: linear-gradient(var(--white), var(--white)) padding-box,
                linear-gradient(135deg, var(--black), #333) border-box;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08),
                0 0 0 4px rgba(0, 0, 0, 0.04);
    transform: translateY(-2px);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--dark-silver);
    opacity: 0.7;
}

.form-textarea {
    resize: vertical;
    min-height: 140px;
    line-height: 1.6;
}

/* Radio Group Styles */
.radio-group {
    margin-bottom: 1.5rem;
}

.radio-label {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 1rem;
}

.radio-options {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.radio-option {
    display: flex;
    align-items: center;
    padding: 1.2rem 1.5rem;
    border: 2px solid transparent;
    background: linear-gradient(var(--white), var(--white)) padding-box,
                linear-gradient(135deg, #e5e5e5, #f0f0f0) border-box;
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
}

.radio-option:hover {
    background: linear-gradient(var(--white), #fafafa) padding-box,
                linear-gradient(135deg, var(--silver), var(--dark-silver)) border-box;
    transform: translateX(5px);
}

.radio-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.radio-custom {
    width: 22px;
    height: 22px;
    border: 2px solid var(--dark-silver);
    border-radius: 50%;
    margin-right: 1rem;
    position: relative;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.radio-custom::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--white);
    transition: transform 0.2s ease;
}

.radio-option input[type="radio"]:checked ~ .radio-custom {
    background: var(--black);
    border-color: var(--black);
}

.radio-option input[type="radio"]:checked ~ .radio-custom::after {
    transform: translate(-50%, -50%) scale(1);
}

.radio-option input[type="radio"]:checked ~ .radio-text {
    color: var(--black);
    font-weight: 600;
}

.radio-text {
    font-size: 1rem;
    color: var(--dark-silver);
    transition: all 0.3s ease;
}

.radio-option:has(input[type="radio"]:checked) {
    background: linear-gradient(135deg, #f5f5f5 0%, #fafafa 100%);
    border-color: var(--black);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.form-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.2rem;
    margin-bottom: 2.5rem;
}

.option-card {
    padding: 2rem 1.8rem;
    border: 2px solid transparent;
    background: linear-gradient(var(--white), var(--white)) padding-box,
                linear-gradient(135deg, #e5e5e5, #f0f0f0) border-box;
    border-radius: 24px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
}

.option-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(192, 192, 192, 0.1), transparent);
    transition: left 0.5s;
}

.option-card:hover::before {
    left: 100%;
}

.option-card:hover {
    background: linear-gradient(var(--white), #fafafa) padding-box,
                linear-gradient(135deg, var(--silver), var(--dark-silver)) border-box;
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
}

.option-card.selected {
    background: linear-gradient(135deg, var(--black) 0%, #1a1a1a 100%);
    color: var(--white);
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.2),
                0 0 0 4px rgba(0, 0, 0, 0.1);
}

.option-card .option-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    border-radius: 14px;
    transition: all 0.3s ease;
}

.option-card .option-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--black);
    transition: all 0.3s ease;
}

.option-card.selected .option-icon {
    background: rgba(255, 255, 255, 0.2);
}

.option-card.selected .option-icon svg {
    stroke: var(--white);
}

.option-card h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.option-card p {
    font-size: 0.95rem;
    opacity: 0.8;
    line-height: 1.5;
}

.form-buttons {
    display: flex;
    gap: 1.2rem;
    margin-top: 3rem;
}

.btn-prev,
.btn-next,
.btn-submit {
    padding: 1.4rem 3rem;
    border: none;
    border-radius: 100px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    font-family: inherit;
    position: relative;
    overflow: hidden;
}

.btn-prev {
    background: linear-gradient(135deg, #f0f0f0 0%, #e5e5e5 100%);
    color: var(--black);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.btn-next,
.btn-submit {
    background: linear-gradient(135deg, var(--black) 0%, #1a1a1a 100%);
    color: var(--white);
    flex: 1;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.btn-prev:hover {
    background: linear-gradient(135deg, #e5e5e5 0%, #d0d0d0 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
}

.btn-next:hover,
.btn-submit:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
    box-shadow: var(--shadow-medium);
}

/* Social Proof */
.social-proof {
    padding: 6rem 2rem;
    background: var(--black);
    color: var(--white);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.testimonial-card {
    padding: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.5s ease;
}

.testimonial-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.testimonial-content {
    font-style: italic;
    margin-bottom: 1.5rem;
    color: var(--silver);
    line-height: 1.6;
}

.testimonial-author {
    font-weight: 600;
    color: var(--white);
}

.testimonial-role {
    font-size: 0.9rem;
    color: var(--dark-silver);
}

/* CTA Section */
.cta-section {
    padding: 8rem 2rem;
    background: linear-gradient(135deg, var(--white) 0%, var(--light-silver) 100%);
    text-align: center;
}

.cta-box {
    max-width: 800px;
    margin: 0 auto;
    padding: 4rem;
    background: var(--white);
    border-radius: 32px;
    box-shadow: var(--shadow-large);
    transform: scale(0.95);
    opacity: 0;
    transition: all 0.6s ease;
}

.cta-box.visible {
    transform: scale(1);
    opacity: 1;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-subtitle {
    font-size: 1.3rem;
    color: var(--dark-silver);
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    padding: 1.5rem 4rem;
    background: var(--black);
    color: var(--white);
    text-decoration: none;
    border-radius: 100px;
    font-size: 1.2rem;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: var(--shadow-medium);
}

.cta-button:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: var(--shadow-large);
}

/* Footer */
footer {
    padding: 2rem 2rem 2rem;
    background: var(--black);
    color: var(--white);
    text-align: center;
}

.footer-logo {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0rem;
    background: var(--gradient-silver);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-text {
    color: var(--dark-silver);
    margin-bottom: 1rem;
}

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

.fade-in-up {
    animation: fadeInUp 0.8s ease forwards;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 73px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        padding: 2rem;
        gap: 1.5rem;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        pointer-events: none;
        z-index: 999;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-menu li {
        width: 100%;
        text-align: center;
    }

    .nav-menu a {
        display: block;
        padding: 1rem;
        font-size: 1.1rem;
    }

    .hamburger {
        display: flex;
    }

    .nav-cta {
        display: none;
    }

    .hero-badge {
        font-size: 0.65rem;
        padding: 0.4rem 1rem;
        white-space: nowrap;
    }

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

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

    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }

    .showcase-item {
        min-width: 280px;
    }

    .form-container {
        padding: 3rem 2rem;
        border-radius: 32px;
    }

    .form-question {
        font-size: 1.5rem;
    }

    .form-options {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .option-card {
        padding: 1.5rem;
    }

    .btn-prev,
    .btn-next,
    .btn-submit {
        padding: 1.2rem 2rem;
        font-size: 1rem;
    }

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

    .cta-box {
        padding: 2rem;
    }
}

/* Gift Box 3D Section with Model Viewer */
.gift-box-section {
    position: relative;
    background: var(--white);
    padding: 8rem 2rem 4rem 2rem;
}

.container-3d {
    position: relative;
    height: 1000px;
    width: 100%;
    max-width: 1600px;
    margin: 4rem auto;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    background: transparent;
}

model-viewer {
    width: 100%;
    height: 1000px;
    background: transparent;
    --poster-color: transparent;
    --progress-bar-color: var(--black);
    --progress-bar-height: 4px;
    touch-action: pan-y;
}

model-viewer::part(default-progress-bar) {
    height: 4px;
    background: var(--gradient-silver);
}

model-viewer::part(default-progress-bar-bar) {
    background: var(--black);
}

/* Loading animation */
model-viewer.loading {
    animation: pulse 2s ease-in-out infinite;
}

.model-instructions {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.85);
    color: white;
    padding: 1rem 2rem;
    border-radius: 100px;
    font-size: 0.95rem;
    backdrop-filter: blur(10px);
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
    animation-delay: 1s;
    pointer-events: none;
    z-index: 2;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* On-screen debug message for 3D loader issues */
.model-debug {
    display: block;
    margin: 1.25rem auto 0;
    background: rgba(0,0,0,0.85);
    color: #fff;
    padding: 0.8rem 1rem;
    border-radius: 12px;
    font-size: 0.95rem;
    z-index: 2;
    max-width: 1100px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.35);
    text-align: center;
}
.model-debug code { background: rgba(255,255,255,0.06); padding: 2px 6px; border-radius: 4px; }
.model-debug #model-test-btn { display: inline-block; margin-left: 12px; vertical-align: middle; }

@media (max-width: 768px) {
    .model-instructions {
        font-size: 0.85rem;
        padding: 0.8rem 1.5rem;
        bottom: 20px;
    }
}

/* Progress bar for loading */
.progress-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--light-silver);
    overflow: hidden;
    transition: opacity 0.3s;
}

.progress-bar.hide {
    opacity: 0;
    pointer-events: none;
}

.update-bar {
    background: var(--gradient-silver);
    width: 0%;
    height: 100%;
    transition: width 0.3s;
}

.gift-description {
    margin-top: 2rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-item {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: 20px;
    border: 1px solid var(--light-silver);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
}

.feature-item:nth-child(1) { animation-delay: 0.5s; }
.feature-item:nth-child(2) { animation-delay: 0.6s; }
.feature-item:nth-child(3) { animation-delay: 0.7s; }

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-large);
    border-color: var(--silver);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    border-radius: 20px;
    color: var(--black);
    transition: all 0.3s ease;
}

.feature-icon svg {
    width: 48px;
    height: 48px;
}

.feature-item:hover .feature-icon {
    background: linear-gradient(135deg, var(--black) 0%, #333 100%);
    color: var(--white);
    transform: translateY(-5px);
}

@keyframes floatIcon {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.feature-item h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--black);
}

.feature-item p {
    color: var(--dark-silver);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Loading state for iframe */
.sketchfab-embed-wrapper::before {
    content: 'Carregando experiência 3D...';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.2rem;
    color: var(--dark-silver);
    z-index: 0;
    animation: pulse 2s ease-in-out infinite;
}

.sketchfab-embed-wrapper iframe {
    position: relative;
    z-index: 1;
}

/* Mobile Responsiveness */
@media (max-width: 968px) {
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .gift-box-section {
        padding: 2rem 1rem 3rem 1rem;
    }

    .gift-box-section .section-title {
        font-size: 1.5rem;
        margin-bottom: 0.5rem;
    }

    .gift-box-section .subtitle {
        font-size: 1rem;
        margin-bottom: 0.5rem;
    }

    .container-3d {
        height: 500px;
        margin: 0.5rem auto;
        touch-action: pan-y;
    }

    model-viewer {
        height: 500px;
        touch-action: pan-y;
    }

    .gift-description {
        margin-top: 1.5rem;
    }

    .feature-item {
        padding: 1.5rem;
    }

    .feature-icon {
        width: 64px;
        height: 64px;
    }

    .feature-icon svg {
        width: 36px;
        height: 36px;
    }

    .feature-item h4 {
        font-size: 1.1rem;
    }

    .feature-item p {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .container-3d {
        height: 450px;
        touch-action: pan-y;
    }

    model-viewer {
        height: 450px;
        touch-action: pan-y;
    }
}

@media (max-width: 768px) {
    .cta-box {
        padding: 2rem 1.5rem;
        border-radius: 24px;
    }

    .cta-title {
        font-size: 1.8rem;
        line-height: 1.2;
    }

    .cta-subtitle {
        font-size: 1rem;
        line-height: 1.4;
    }

    .cta-button {
        width: 100%;
        padding: 1.2rem 0;
        font-size: 1.1rem;
        border-radius: 100px;
        display: block;
        margin: 0 auto;
        max-width: 260px;
    }
}


/* Loading Animation */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loading.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--light-silver);
    border-top-color: var(--black);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* tiny helpers */
.visible { opacity: 1 !important; transform: none !important; transition: all 0.6s ease; }
.hide { display: none !important; }

/* form errors */
.form-input.error,
.option-card.error,
.form-options.error {
    border: 1px solid #e53935;
    box-shadow: 0 0 0 2px rgba(229, 57, 53, 0.12);
    background: #fff8f7;
}

.error-msg {
    color: #e53935;
    font-size: 12px;
    margin-top: 4px;
    display: block;
}

.option-step .btn-next {
    display: none;
}

.form-success {
    background: #ffffff;
    border: 1px solid var(--light-silver);
    border-radius: 18px;
    padding: 32px;
    box-shadow: 0 10px 35px rgba(0,0,0,0.08);
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
}

.form-success .success-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 16px;
    color: #22c55e;
    background: #e8f9ef;
    border-radius: 50%;
    display: grid;
    place-items: center;
}

.form-success h3 {
    margin: 0 0 8px;
    font-size: 22px;
}

.form-success p {
    margin: 0 0 20px;
    color: #555;
}

.success-link {
    background: var(--black);
    color: #fff;
    border: none;
    border-radius: 30px;
    padding: 12px 22px;
    cursor: pointer;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.success-link:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}