/* Hero Section Redesign */
.hero {
    background-color: #fff9f0;
    /* Warm light background */
    background-image:
        linear-gradient(rgba(255, 123, 0, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 123, 0, 0.05) 1px, transparent 1px);
    background-size: 40px 40px;
    /* Grid pattern */
    padding: 60px 0 120px;
    /* Extra padding bottom for wave */
    position: relative;
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 10;
}

.hero-text {
    text-align: left;
}

.hero-badge {
    display: inline-block;
    background: #ffe0b2;
    color: #e65100;
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.8rem;
    margin-bottom: 16px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 20px;
    color: #333;
}

.hero h1 span {
    color: var(--primary);
    display: block;
}

.hero p {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 32px;
    max-width: 90%;
}

.hero-visual {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 3D Book Composition for Hero */
.hero-book {
    position: absolute;
    transition: transform 0.5s ease;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    background: white;
}

.hero-book:nth-child(1) {
    z-index: 3;
    transform: rotate(-5deg) translateX(-20px);
    width: 350px;
}

.hero-book:nth-child(2) {
    z-index: 2;
    transform: rotate(10deg) translateX(100px) translateY(-40px);
    width: 320px;
}

.hero-book:nth-child(3) {
    z-index: 1;
    transform: rotate(-15deg) translateX(-130px) translateY(50px);
    width: 280px;
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    line-height: 0;
}

.hero-wave svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 80px;
}

.hero-wave .shape-fill {
    fill: #ffffff;
}

/* Floating Icons Strip */
.icon-strip {
    background: white;
    padding: 30px 0;
    margin-top: -60px;
    /* Overlap with hero */
    position: relative;
    z-index: 20;
    border-bottom: 1px solid var(--border-light);
}

/* Publications Grid Update */
.publications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-top: 40px;
}

.pub-card {
    background: white;
    padding: 32px;
    border-radius: var(--radius-md);
    text-align: center;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

.pub-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.pub-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
    margin-top: 40px;
}

.feature-item {
    text-align: center;
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: rgba(255, 123, 0, 0.1);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 16px;
}

/* Catalogue Layout */
.catalogue-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 32px;
    align-items: start;
}

.filters-sidebar {
    background: white;
    padding: 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    position: sticky;
    top: 100px;
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 24px;
}

/* Order Form Layout */
.order-layout {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 32px;
    align-items: start;
}

.order-form-section {
    background: white;
    padding: 32px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
}

.order-summary-sidebar {
    background: white;
    padding: 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    position: sticky;
    top: 100px;
    box-shadow: var(--shadow-lg);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 0.95rem;
}

.summary-total {
    border-top: 2px solid var(--border-light);
    padding-top: 16px;
    margin-top: 16px;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--primary);
}

/* Responsive */
@media (max-width: 768px) {
    .catalogue-layout {
        grid-template-columns: 1fr;
    }

    .order-layout {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    /* Navigation remains visible - mobile menu styling can be added later */
    .nav-links {
        flex-direction: column;
        gap: 10px;
    }

    .nav-group-left,
    .nav-group-right {
        flex-direction: column;
        gap: 10px;
    }
}

/* Business Highlight Section */
.highlight-section {
    background: linear-gradient(135deg, #0288d1 0%, #1565c0 100%);
    /* Blue Gradient */
    color: white;
    padding: 80px 0;
    margin: 0;
    border-radius: 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.highlight-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: white;
}

.highlight-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 32px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.highlight-btn {
    background: white;
    color: #1565c0;
    font-weight: 700;
    padding: 14px 32px;
    border-radius: 30px;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.highlight-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    background: #f5f5f5;
}