/* Global Resets & Typography */
* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Section Title
   ============================================ */
.section-title {
    font-size: 2.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: #1d1d1f;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.125rem;
    color: #6e6e73;
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   Product Categories Section
   ============================================ */

/* ============================================
   Horizontal Category Navigation
   ============================================ */
.category-nav-horizontal {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.category-nav-horizontal .category-item {
    padding: 12px 24px;
    border-radius: 30px;
    border: 2px solid #e0e0e0;
    background: #fff;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 0;
    font-size: 1.1rem;
    font-weight: 600;
}

.category-nav-horizontal .category-item::before {
    display: none;
}

.category-nav-horizontal .category-item:hover {
    border-color: #4CAF50;
    color: #4CAF50;
}

.category-nav-horizontal .category-item.active {
    background: #4CAF50;
    border-color: #4CAF50;
    color: #fff;
}

.category-nav-horizontal .category-item.active span {
    color: #fff;
}

.category-content-area {
    width: 100%;
}

/* ============================================
   Feature Cards
   ============================================ */
.feature-card {
    background: white;
    border-radius: 20px;
    padding: 32px 24px;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s forwards;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #4CAF50, #66BB6A);
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.feature-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.12);
    border-color: rgba(76, 175, 80, 0.2);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card img {
    max-width: 90%;
    height: auto;
    max-height: 180px;
    object-fit: contain;
    margin: 0 auto 24px;
    filter: drop-shadow(0 4px 16px rgba(0, 0, 0, 0.08));
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-card:hover img {
    transform: scale(1.08);
}

.feature-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: #1d1d1f;
    letter-spacing: -0.01em;
}

.feature-card p {
    color: #6e6e73;
    line-height: 1.6;
    font-size: 0.938rem;
    margin: 0;
}

.category-content {
    display: none;
}

.category-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Staggered animation delay */
.feature-card:nth-child(1) { animation-delay: 0.05s; }
.feature-card:nth-child(2) { animation-delay: 0.1s; }
.feature-card:nth-child(3) { animation-delay: 0.15s; }
.feature-card:nth-child(4) { animation-delay: 0.2s; }
.feature-card:nth-child(5) { animation-delay: 0.25s; }
.feature-card:nth-child(6) { animation-delay: 0.3s; }

/* ============================================
   New Section & Onboard Section Styles
   ============================================ */
.new-section {
    padding: 40px 0;
    background: inherit;
}

.styled-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1d1d1f;
    margin-bottom: 16px;
    letter-spacing: 0.05em;
}

.section-spacing {
    margin-top: 40px;
}

.postit-note {
    position: absolute;
    bottom: 10px;
    right: 10px;
    width: 300px;
    height: 300px;
    background: #ffeb3b;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    padding: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 0.9rem;
    font-weight: bold;
    color: #333;
}

.blockly-container {
    position: relative;
}

.sensor-icons {
    display: flex;
    justify-content: center;
    margin-top: 10px;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    flex-wrap: wrap;
}

.sb-pheno-small {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    min-width: 90px;
}

.sb-pheno-small .icon {
    transition: transform 0.3s ease;
}

.sb-pheno-small:hover .icon {
    transform: scale(1.15);
}

.sb-pheno-small span {
    font-size: 0.8rem;
    font-weight: 500;
    color: #6e6e73;
    text-align: center;
    line-height: 1.2;
}

/* ============================================
   Use Case Cards
   ============================================ */
.usecase-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(0, 0, 0, 0.04);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: row;
    align-items: center;
}

.usecase-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
    border-color: rgba(76, 175, 80, 0.2);
}

.usecase-card-images {
    display: flex;
    flex-shrink: 0;
    gap: 8px;
    padding: 16px;
    align-items: center;
    justify-content: center;
    width: 55%;
}

.usecase-card-images img {
    width: calc(50% - 4px);
    height: auto;
    object-fit: contain;
    display: block;
    border-radius: 10px;
}

.usecase-card-body {
    padding: 32px 32px 32px 16px;
    flex: 1;
}

.usecase-card-body h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #1d1d1f;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.usecase-card-body p {
    color: #6e6e73;
    line-height: 1.6;
    font-size: 1.125rem;
    margin: 0;
}

@media (max-width: 768px) {
    .usecase-card {
        flex-direction: column;
    }

    .usecase-card-images {
        width: 100%;
        padding: 16px 16px 8px;
    }

    .usecase-card-body {
        padding: 16px;
    }
}

/* ============================================
   Responsive Design
   ============================================ */

/* Large devices */
@media (max-width: 1200px) {
    .section-title {
        font-size: 2.25rem;
    }
}

/* Medium devices */
@media (max-width: 992px) {
    .section-title {
        font-size: 2rem;
    }

    .category-nav {
        position: relative;
        top: 0;
        margin-bottom: 40px;
    }
}

/* Small devices */
@media (max-width: 768px) {
    .section-title {
        font-size: 1.75rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }

    .category-item {
        font-size: 0.875rem;
        padding: 10px 12px;
    }

    .feature-card {
        padding: 24px 20px;
    }
}

.masthead-text h3 {
    white-space: nowrap;
}

/* ============================================
   Interest Section
   ============================================ */
.interest-section {
    padding: 80px 0;
    border-top: 6px solid #4caf50;
    border-bottom: 6px solid #4caf50;
}

.interest-section h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1d1d1f;
    margin-bottom: 20px;
}

.interest-section p {
    font-size: 1.2rem;
    color: #333;
    line-height: 1.7;
}

.interest-section a {
    color: #4caf50;
    font-weight: 600;
}

.interest-section a:hover {
    text-decoration: underline;
}