/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fafafa;
}

/* Top Navigation */
.top-nav {
    background-color: #000;
    padding: 15px 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo-img {
    height: 30px;
    width: auto;
    filter: brightness(0) invert(1);
}

.nav-buttons {
    display: flex;
    gap: 30px;
}

.nav-btn {
    color: white;
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    padding: 8px 16px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.nav-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

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

/* Typography */
h1, h2, h3 {
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: #fff;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
}

/* Brand Section */
.brand-section {
    min-height: 100vh;
    background-color: #000;
    display: flex;
    align-items: center;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.brand-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.brand-text {
    color: white;
}

.brand-title {
    font-family: 'Urbanist', sans-serif;
    font-size: 47px;
    font-weight: 700;
    color: #42FA57;
    margin-bottom: 10px;
    line-height: 1.2;
}

.brand-subtitle {
    font-family: 'Urbanist', sans-serif;
    font-size: 22px;
    font-weight: 500;
    color: #42FA57;
    margin-bottom: 30px;
    line-height: 1.3;
}

.brand-description {
    font-size: 16px;
    line-height: 1.8;
    color: white;
}

.brand-description p {
    margin-bottom: 20px;
}

.brand-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.device-mockup {
    position: relative;
    width: 100%;
    height: 500px;
}

.phone-mockup {
    position: absolute;
    left: 20%;
    top: 50%;
    transform: translateY(-50%) rotate(-15deg);
    width: 200px;
    height: 400px;
    background: #1a1a1a;
    border-radius: 25px;
    padding: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    z-index: 2;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #000;
    border-radius: 15px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.phone-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: white;
    font-size: 12px;
}

.phone-center {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.neural-orb {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: radial-gradient(circle, #42FA57 0%, #667eea 50%, #764ba2 100%);
    animation: neuralPulse 2s ease-in-out infinite;
    margin-bottom: 20px;
}

@keyframes neuralPulse {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.1); opacity: 1; }
}

.timestamp {
    color: white;
    font-size: 14px;
}

.phone-footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.waveform {
    width: 100%;
    height: 20px;
    background: linear-gradient(90deg, #42FA57 0%, #667eea 50%, #764ba2 100%);
    border-radius: 10px;
    opacity: 0.7;
}

.phone-controls {
    display: flex;
    gap: 15px;
}

.control-btn {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: #333;
    border: 2px solid #42FA57;
}

.control-btn.mic {
    background: #42FA57;
    width: 40px;
    height: 40px;
}

.tablet-mockup {
    position: absolute;
    right: 10%;
    top: 20%;
    width: 300px;
    height: 200px;
    background: #1a1a1a;
    border-radius: 15px;
    padding: 15px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    z-index: 1;
}

.tablet-screen {
    width: 100%;
    height: 100%;
    background: #000;
    border-radius: 10px;
    padding: 15px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.tablet-header {
    display: flex;
    justify-content: space-between;
    color: white;
    font-size: 10px;
}

.audio-section, .midi-section {
    flex: 1;
}

.audio-section h3, .midi-section h3 {
    color: white;
    font-size: 12px;
    margin-bottom: 5px;
}

.filename {
    color: #666;
    font-size: 8px;
    margin-bottom: 5px;
}

.play-btn {
    width: 20px;
    height: 20px;
    background: #42FA57;
    border-radius: 50%;
    margin-bottom: 5px;
}

.audio-waveform {
    width: 100%;
    height: 15px;
    background: linear-gradient(90deg, #42FA57 0%, #667eea 50%, #764ba2 100%);
    border-radius: 7px;
    margin-bottom: 5px;
}

.timestamps {
    display: flex;
    justify-content: space-between;
    color: #666;
    font-size: 8px;
}

.midi-visualization {
    width: 100%;
    height: 20px;
    background: linear-gradient(90deg, #42FA57 0%, #667eea 50%, #764ba2 100%);
    border-radius: 10px;
    margin-bottom: 5px;
}

.instrument-label {
    color: #666;
    font-size: 8px;
    text-align: right;
}

.export-btn {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: #42FA57;
    color: white;
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 10px;
    font-weight: 600;
}


/* Values Section */
.values {
    padding: 60px 0;
    background: #f8f9fa;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    max-width: 700px;
    margin: 0 auto;
}

.value-card {
    background: white;
    padding: 20px 15px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 6px 20px rgba(0,0,0,0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.value-icon {
    width: 45px;
    height: 45px;
    margin: 0 auto 12px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.brainwave-icon {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.natural-icon {
    background: linear-gradient(135deg, #56ab2f, #a8e6cf);
}

.mindfulness-icon {
    background: linear-gradient(135deg, #ff9a9e, #fecfef);
}

.value-title {
    font-size: 1rem;
    color: #2c3e50;
    margin-bottom: 6px;
}

.value-subtitle {
    font-size: 0.8rem;
    color: #666;
    margin-bottom: 10px;
    font-weight: 500;
    line-height: 1.3;
}

.value-description {
    font-size: 0.95rem;
    color: #777;
    line-height: 1.6;
}

/* Brainwave Visualization Section */
.brainwave-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f5f7 0%, #e8e9ed 100%);
    min-height: 100vh;
}

.brainwave-header {
    text-align: center;
    margin-bottom: 50px;
}

.brainwave-title {
    font-size: 3rem;
    font-weight: 300;
    color: #2D3B5F;
    margin-bottom: 10px;
    letter-spacing: 0.1em;
}

.brainwave-subtitle {
    color: #666;
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.brainwave-canvas-container {
    background: white;
    border-radius: 30px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    padding: 30px;
    margin-bottom: 30px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

#brainwaveCanvas {
    width: 100%;
    border-radius: 15px;
    display: block;
}

.wave-info {
    text-align: center;
    margin-top: 25px;
}

.wave-name {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 8px;
    color: #B8A8D8;
}

.wave-description {
    color: #666;
    font-size: 0.9rem;
}

.brainwave-controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.control-panel {
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    padding: 25px;
}

.control-title {
    font-size: 1.1rem;
    font-weight: 500;
    color: #333;
    margin-bottom: 20px;
}

.wave-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.wave-btn {
    width: 100%;
    text-align: left;
    padding: 15px 20px;
    border-radius: 15px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #f5f5f7;
    color: #2D3B5F;
}

.wave-btn:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.wave-btn.active {
    transform: scale(1.02);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.wave-btn.active[data-wave="alpha"] {
    background: #B8A8D8;
    color: white;
}

.wave-btn.active[data-wave="theta"] {
    background: #6B7FA8;
    color: white;
}

.wave-btn.active[data-wave="delta"] {
    background: #2D3B5F;
    color: white;
}

.btn-name {
    font-weight: 500;
    margin-bottom: 4px;
}

.btn-desc {
    font-size: 0.8rem;
    opacity: 0.8;
}

.play-btn {
    width: 100%;
    padding: 15px;
    border-radius: 15px;
    border: none;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #2D3B5F;
    color: white;
    font-size: 1rem;
}

.play-btn:hover {
    box-shadow: 0 8px 20px rgba(45, 59, 95, 0.3);
}

.play-btn.paused {
    background: #B8A8D8;
}

.info-box {
    margin-top: 25px;
    padding: 20px;
    border-radius: 15px;
    background: #f5f5f7;
}

.info-text {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.6;
}

.info-highlight {
    font-weight: 500;
    color: #2D3B5F;
}

.wave-legend {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 20px;
    font-size: 0.8rem;
    color: #666;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.legend-dot.alpha {
    background: #B8A8D8;
}

.legend-dot.theta {
    background: #6B7FA8;
}

.legend-dot.delta {
    background: #2D3B5F;
}

.brainwave-footer {
    margin-top: 40px;
    text-align: center;
}

.footer-text {
    color: #999;
    font-size: 0.7rem;
    letter-spacing: 0.2em;
}
.products {
    padding: 60px 0;
    background: #000;
}

.product-intro {
    text-align: center;
    font-size: 14px;
    line-height: 1.6;
    color: #fff;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.product-card {
    background: #1a1a1a;
    border-radius: 12px;
    overflow: visible;
    box-shadow: 0 6px 20px rgba(255,255,255,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #333;
    position: relative;
}

.product-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.1);
}

.product-image {
    height: 400px;
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    perspective: 1000px;
    transform-style: preserve-3d;
}

.product-bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3;
    z-index: 1;
}

.product-main-image {
    position: relative;
    width: 100%;
    height: 100%;
    object-fit: contain;
    z-index: 2;
    filter: drop-shadow(0 8px 20px rgba(0,0,0,0.15));
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transform-style: preserve-3d;
    perspective: 1000px;
    transform: rotateY(-2deg) rotateX(2deg);
}

.product-card:hover .product-main-image {
    transform: rotateY(8deg) rotateX(8deg) scale(1.08) translateZ(20px);
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.3));
}

.product-main-image::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    background: linear-gradient(45deg, rgba(255,255,255,0.1), rgba(255,255,255,0.3));
    border-radius: 15px;
    z-index: -1;
    transform: translateZ(-10px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-tooltip {
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%) translateY(100%);
    background: rgba(0, 0, 0, 0.95);
    color: white;
    padding: 25px;
    border-radius: 15px;
    width: 350px;
    max-width: 90vw;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: 1000;
    backdrop-filter: blur(10px);
    border: 1px solid #333;
}

.product-card:hover .product-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.product-tooltip .product-name {
    font-size: 1.1rem;
    color: #fff;
    margin-bottom: 5px;
    font-weight: 600;
}

.product-tooltip .product-type {
    font-size: 0.9rem;
    color: #ccc;
    margin-bottom: 15px;
}

.product-tooltip .brainwave-data {
    margin-bottom: 15px;
}

.product-tooltip .wave-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
    padding: 6px 10px;
    background: #333;
    border-radius: 6px;
    border: 1px solid #555;
}

.product-tooltip .wave-label {
    font-size: 0.9rem;
    color: #ccc;
}

.product-tooltip .product-description {
    font-size: 0.9rem;
    color: #ccc;
    line-height: 1.5;
}

.product-tooltip::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid rgba(0, 0, 0, 0.95);
}

.product-tooltip .product-description strong {
    display: block;
    margin-top: 8px;
    font-size: 0.8rem;
    color: #aaa;
    line-height: 1.6;
    font-weight: 500;
}

.product-placeholder {
    position: relative;
    z-index: 2;
    background: rgba(255, 255, 255, 0.9);
    padding: 20px 30px;
    border-radius: 15px;
    font-size: 1.2rem;
    font-weight: 600;
    color: #2c3e50;
    text-align: center;
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
    backdrop-filter: blur(10px);
}

.product-bottle {
    width: 120px;
    height: 200px;
    border-radius: 20px 20px 5px 5px;
    position: relative;
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.lavender-bottle {
    background: linear-gradient(180deg, #e8d5ff 0%, #c7a3ff 50%, #9c7aff 100%);
}

.forest-bottle {
    background: linear-gradient(180deg, #d4f1d4 0%, #a8e6a8 50%, #7dd87d 100%);
}

.premium-bottle {
    background: linear-gradient(180deg, #ffeaa7 0%, #fdcb6e 50%, #e17055 100%);
}

.pine-cone-bottle {
    background: linear-gradient(180deg, #2d5016 0%, #4a7c59 50%, #6b8e23 100%);
}

.emma-cook-bottle {
    background: linear-gradient(180deg, #8b5a96 0%, #a569bd 50%, #bb8fce 100%);
}

.product-bottle::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 20px;
    background: #c0c0c0;
    border-radius: 5px;
}

.product-info {
    padding: 20px;
}

.product-name {
    font-size: 1rem;
    color: #fff;
    margin-bottom: 3px;
}

.product-type {
    font-size: 0.8rem;
    color: #ccc;
    margin-bottom: 12px;
}

.brainwave-data {
    margin-bottom: 12px;
}

.wave-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 5px;
    padding: 5px 8px;
    background: #333;
    border-radius: 5px;
    border: 1px solid #555;
}

.wave-bar-container {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    margin-left: 10px;
}

.wave-bar {
    height: 8px;
    background: linear-gradient(90deg, #42FA57 0%, #667eea 100%);
    border-radius: 4px;
    width: 0;
    transition: width 1.5s ease-in-out;
    position: relative;
    overflow: hidden;
}

.wave-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

.wave-label {
    font-size: 0.9rem;
    color: #ccc;
}

.wave-value {
    font-weight: 600;
    font-size: 0.9rem;
}

.wave-value.positive {
    color: #27ae60;
}

.wave-value.negative {
    color: #e74c3c;
}

.product-features {
    margin-bottom: 20px;
}

.feature-tag {
    display: inline-block;
    background: #667eea;
    color: white;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    margin-right: 8px;
    margin-bottom: 8px;
}

.product-benefits {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.5;
}

.product-description {
    font-size: 0.9rem;
    color: #ccc;
    line-height: 1.5;
}

.product-description strong {
    display: block;
    margin-top: 5px;
    font-size: 0.75rem;
    color: #aaa;
    line-height: 2.0;
    font-weight: 500;
}

.sample-request-btn-container {
    text-align: center;
    margin-top: 25px;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
}

.sample-request-btn {
    display: inline-block;
    background: linear-gradient(135deg, #42FA57 0%, #667eea 100%);
    color: white;
    padding: 12px 30px;
    border-radius: 20px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 6px 15px rgba(66, 250, 87, 0.2);
}

.sample-request-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(66, 250, 87, 0.4);
}

/* Instagram Section */
.instagram-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #000 0%, #1a1a1a 100%);
    position: relative;
    overflow: hidden;
}

.instagram-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(66, 250, 87, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(102, 126, 234, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.instagram-section .section-title {
    color: #fff;
}

.instagram-intro {
    text-align: center;
    font-size: 16px;
    line-height: 1.6;
    color: #ccc;
    margin-bottom: 50px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.instagram-qr {
    text-align: center;
    max-width: 400px;
    margin: 0 auto;
    position: relative;
}

.qr-image {
    width: 100%;
    max-width: 250px;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(66, 250, 87, 0.2);
    transition: all 0.4s ease;
    background: white;
    padding: 20px;
    margin-bottom: 20px;
}

.qr-image:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 30px 80px rgba(66, 250, 87, 0.4);
}

.qr-text {
    color: #42FA57;
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: 0.05em;
}

/* Sample Form Section */
.sample-form {
    padding: 100px 0;
    background: #f8f9fa;
}

.form-intro {
    text-align: center;
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 50px;
}

.sample-request-form {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e1e8ed;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.radio-group {
    display: flex;
    gap: 20px;
    margin-top: 8px;
}

.box-selection-group {
    display: flex;
    gap: 15px;
    margin-top: 8px;
}

.box-selection-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 400;
    flex: 1;
}

.box-selection-label input[type="radio"] {
    display: none;
}

.box-selection-box {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 12px 20px;
    border: 2px solid #e1e8ed;
    border-radius: 10px;
    background: white;
    color: #666;
    font-weight: 500;
    transition: all 0.3s ease;
    text-align: center;
    min-height: 48px;
}

.box-selection-label input[type="radio"]:checked + .box-selection-box {
    border-color: #667eea;
    background: #667eea;
    color: white;
    transform: scale(1.02);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.box-selection-label:hover .box-selection-box {
    border-color: #667eea;
    background: rgba(102, 126, 234, 0.05);
    color: #667eea;
}

.radio-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 400;
}

.radio-label input[type="radio"] {
    display: none;
}

.radio-custom {
    width: 20px;
    height: 20px;
    border: 2px solid #e1e8ed;
    border-radius: 50%;
    margin-right: 8px;
    position: relative;
    transition: all 0.3s ease;
    background: white;
}

.radio-label input[type="radio"]:checked + .radio-custom {
    border-color: #667eea;
    background: #667eea;
    transform: scale(1.1);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.radio-label input[type="radio"]:checked + .radio-custom::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    animation: radioFill 0.3s ease-in-out;
}

@keyframes radioFill {
    0% {
        transform: translate(-50%, -50%) scale(0);
        opacity: 0;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.8;
    }
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
}

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 400;
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkbox-custom {
    width: 20px;
    height: 20px;
    border: 2px solid #e1e8ed;
    border-radius: 4px;
    margin-right: 8px;
    position: relative;
    transition: all 0.3s ease;
    background: white;
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom {
    border-color: #667eea;
    background: #667eea;
    transform: scale(1.05);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
    animation: checkboxFill 0.3s ease-in-out;
}

@keyframes checkboxFill {
    0% {
        transform: translate(-50%, -50%) scale(0);
        opacity: 0;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.8;
    }
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
}

.consent-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 400;
    padding: 12px 16px;
    border: 2px solid #e1e8ed;
    border-radius: 10px;
    transition: all 0.3s ease;
    background: white;
}

.consent-label:hover {
    border-color: #667eea;
    background: rgba(102, 126, 234, 0.05);
}

.consent-label input[type="checkbox"] {
    display: none;
}

.consent-label.checked {
    border-color: #667eea;
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
    font-weight: 500;
}

.submit-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-top: 20px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.error-message {
    display: block;
    color: #e74c3c;
    font-size: 0.85rem;
    margin-top: 5px;
    min-height: 20px;
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    padding: 40px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.footer-logo {
    max-width: 120px;
    height: auto;
    margin-bottom: 10px;
    filter: brightness(0) invert(1);
}

.footer-brand p {
    opacity: 0.8;
}

.footer-info p {
    opacity: 0.6;
    font-size: 15px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-buttons {
        gap: 15px;
    }
    
    .nav-btn {
        font-size: 14px;
        padding: 6px 12px;
    }
    
    .brand-content {
        grid-template-columns: 1fr;
        gap: 40px;
        padding-top: 100px;
    }
    
    .brand-title {
        font-size: 35px;
    }
    
    .brand-subtitle {
        font-size: 18px;
    }
    
    .device-mockup {
        height: 300px;
    }
    
    .phone-mockup {
        width: 150px;
        height: 300px;
        left: 10%;
    }
    
    .tablet-mockup {
        width: 200px;
        height: 130px;
        right: 5%;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    
    .values-grid {
        grid-template-columns: 1fr;
        max-width: 300px;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        gap: 25px;
        max-width: 350px;
    }
    
    .product-tooltip {
        width: 300px;
        padding: 20px;
    }
    
    .brainwave-title {
        font-size: 2rem;
    }
    
    .brainwave-canvas-container {
        padding: 20px;
        margin: 0 10px 20px 10px;
    }
    
    .brainwave-controls {
        grid-template-columns: 1fr;
        gap: 20px;
        margin: 0 10px;
    }
    
    .control-panel {
        padding: 20px;
    }
    
    .wave-legend {
        flex-direction: column;
        gap: 10px;
    }
    
    .instagram-qr {
        max-width: 90%;
    }
    
    .qr-image {
        max-width: 200px;
        padding: 15px;
    }
    
    .qr-text {
        font-size: 1rem;
    }
    
    .radio-group {
        flex-direction: column;
        gap: 10px;
    }
    
    .box-selection-group {
        flex-direction: column;
        gap: 10px;
    }
    
    .sample-request-form {
        padding: 30px 20px;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
    
    .footer-logo {
        max-width: 100px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .logo-image {
        max-width: 200px;
    }
    
    .footer-logo {
        max-width: 80px;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .value-card,
    .product-card {
        margin: 0 10px;
    }
    
    .sample-request-form {
        margin: 0 10px;
        padding: 20px 15px;
    }
}