:root {
    /* Dentia Theme - Soothing Professional Palette */
    --bg-main: #ffffff;
    --bg-secondary: #F8F9FA;
    --bg-light: #f0f4f9;

    --text-primary: #10244b;
    --text-secondary: #93a0af;
    --text-muted: #93a0af;

    --accent-primary: #4A7CD2;
    --accent-secondary: #000A5B;
    --accent-light: rgba(74, 124, 210, 0.1);

    --border-color: #e2e8f0;
    --border-focus: rgba(74, 124, 210, 0.5);

    /* Typography */
    --font-heading: 'Urbanist', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Layout */
    --container-width: 1600px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 40px;
    --radius-full: 9999px;

    /* Effects */
    --shadow-sm: 0 4px 10px rgba(0, 0, 10, 0.03);
    --shadow-md: 0 10px 30px rgba(0, 0, 10, 0.05);
    --shadow-lg: 0 20px 40px rgba(0, 0, 10, 0.08);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    letter-spacing: -0.025em;
}

.text-gradient {
    color: var(--accent-primary);
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
    transition: var(--transition);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
}

.logo-icon {
    color: var(--accent-primary);
    width: 28px;
    height: 28px;
}

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

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

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

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

.btn-search {
    background: var(--accent-primary);
    color: white;
    padding: 16px 32px;
    font-size: 1.1rem;
    width: 100%;
    margin-top: 24px;
}

.btn-search:hover {
    background: var(--accent-secondary);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--accent-primary);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    font-size: 0.9rem;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
}

.btn-outline:hover {
    background: var(--bg-light);
    border-color: var(--accent-primary);
}

/* Hero Pages */
.page-header {
    padding: 160px 0 100px;
    background: var(--bg-main);
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}

.page-title {
    font-size: 3.5rem;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.page-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto;
}

/* Modern Card Layouts */
.content-section {
    padding: 80px 0;
    position: relative;
    background: transparent;
}

.white-panel {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 48px;
}

/* Two Column Layout */
.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    margin-top: 64px;
}

.split-text h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.split-text p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 20px;
}

/* Image Grids for Types */
.types-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 32px;
    margin-top: 40px;
}

.type-card {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition);
}

.type-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    border-color: var(--accent-light);
}

.type-img {
    height: 180px;
    object-fit: contain;
    margin-bottom: 24px;
}

.type-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.type-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Data Tables */
.table-wrapper {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 32px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.table-header-row h3 {
    margin: 0;
    font-size: 1.5rem;
}

.results-count {
    color: var(--text-secondary);
    background: var(--bg-main);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
    font-size: 0.9rem;
    font-weight: 500;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.data-table th {
    background: var(--bg-main);
    padding: 16px 32px;
    font-family: var(--font-heading);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 20px 32px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.data-table tbody tr:hover {
    background: var(--bg-secondary);
}

.part-cell {
    font-weight: 600;
    color: var(--accent-primary);
    font-family: var(--font-heading);
    font-size: 1.1rem;
}

.type-badge {
    background: var(--accent-light);
    color: var(--accent-primary);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
}

/* Search Box Container */
.search-container {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 32px;
    margin-top: -60px;
    position: relative;
    z-index: 10;
}

.search-form {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: end;
}

.search-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.search-group label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 16px;
    color: var(--text-muted);
    width: 20px;
    height: 20px;
}

.search-group input {
    width: 100%;
    padding: 14px 16px 14px 44px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.search-group input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-light);
    background: var(--bg-main);
}

/* States */
.empty-state,
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 20px;
    text-align: center;
    color: var(--text-muted);
}

.empty-state.hidden,
.loading-state.hidden,
.data-table.hidden {
    display: none;
}

.empty-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 16px;
    color: var(--border-color);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--bg-light);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
}

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

/* Footer */
.footer {
    background: var(--bg-dark-1);
    border-top: 1px solid var(--border-color);
    padding: 80px 0 40px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 60px;
}

.footer-brand p {
    color: var(--text-secondary);
    margin-top: 16px;
    max-width: 300px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links h4 {
    color: var(--text-primary);
    margin-bottom: 12px;
}

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

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

.footer-bottom {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

/* Slide-Out Side Panel (Dentia V7.3) */
#btn-extra {
    position: relative;
    margin-left: 20px;
    width: 24px;
    height: 12px;
    cursor: pointer;
    display: inline-block;
    vertical-align: middle;
}

#btn-extra span {
    content: '';
    display: block;
    position: absolute;
    top: 0;
    width: 100%;
    border-bottom: solid 2px var(--heading-font-color, var(--text-primary));
    background: var(--bg-dark-1);
    transition: width 0.3s ease;
}

#btn-extra span:nth-child(2) {
    top: auto;
    bottom: 0;
    right: 0;
}

#btn-extra:hover span {
    width: 70%;
}

#extra-wrap {
    position: fixed;
    z-index: 1002;
    top: 0;
    right: -500px;
    width: 500px;
    max-width: 100vw;
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    background: rgba(15, 23, 42, 0.95);
    background: rgba(var(--bg-dark-1-rgb, 15, 23, 42), .95);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    transition: right 0.5s cubic-bezier(0.77, 0, 0.175, 1);
    color: white;
    padding: 60px 40px;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
}

#extra-wrap.open {
    right: 0;
}

#extra-wrap h5 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: white;
}

#extra-wrap p,
#extra-wrap div,
#extra-wrap li a {
    color: #cbd5e1;
    font-size: 1.05rem;
    line-height: 1.7;
    text-decoration: none;
}

#extra-wrap li {
    margin-bottom: 12px;
}

#extra-wrap li a:hover {
    color: var(--accent-primary);
}

.spacer-30-line {
    width: 100%;
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: 30px 0;
}

#btn-close {
    top: 50px;
    right: 50px;
    position: absolute;
    z-index: 1003;
    width: 26px;
    height: 26px;
    cursor: pointer;
    transition: transform 0.3s ease;
}

#btn-close:hover {
    transform: rotate(90deg);
}

#btn-close span {
    content: '';
    display: block;
    position: absolute;
    top: 50%;
    width: 100%;
    height: 2px;
    background: #ffffff;
    transform: rotate(45deg);
}

#btn-close span:nth-child(2) {
    transform: rotate(-45deg);
}

/* Responsive */
@media (max-width: 992px) {
    .search-form {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    .page-title {
        font-size: 2.4rem !important;
    }

    .page-header {
        padding: 120px 0 60px !important;
    }

    .split-layout h1 {
        font-size: 2.8rem !important;
    }

    .footer-content {
        flex-direction: column;
        gap: 40px;
    }

    .stat-bar {
        gap: 32px;
        padding: 24px;
        flex-direction: column;
        text-align: center;
    }

    .white-panel {
        padding: 24px;
    }

    .oem-card-header {
        flex-direction: column;
        text-align: center;
    }

    /* Scale down radii on very small screens so content isn't clipped */
    :root {
        --radius-xl: 24px;
    }
}