/* ============================================
   BE Enterprises - Custom Educational Lab Kits
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #1a56db;
    --primary-dark: #1444b0;
    --primary-light: #e8effc;
    --dark: #111827;
    --dark-soft: #1f2937;
    --gray-900: #111827;
    --gray-800: #1f2937;
    --gray-700: #374151;
    --gray-600: #4b5563;
    --gray-500: #6b7280;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
    --gray-200: #e5e7eb;
    --gray-100: #f3f4f6;
    --gray-50: #f9fafb;
    --white: #ffffff;
    --success: #059669;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.1), 0 10px 10px rgba(0,0,0,0.04);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--gray-700);
    line-height: 1.6;
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

h1, h2, h3, h4 {
    color: var(--gray-900);
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: var(--primary);
    transition: color 0.2s;
}

a:hover {
    color: var(--primary-dark);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 24px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
    border: 2px solid transparent;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

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

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.4);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.8);
    color: var(--white);
}

.btn-nav {
    background: var(--primary);
    color: var(--white) !important;
    padding: 8px 20px;
    border-radius: var(--radius);
}

.btn-nav:hover {
    background: var(--primary-dark);
    color: var(--white) !important;
}

.btn-lg {
    padding: 14px 32px;
    font-size: 1.05rem;
}

.btn-full {
    width: 100%;
}

/* --- Navigation --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    transition: box-shadow 0.3s;
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--gray-900) !important;
    letter-spacing: -0.02em;
}

.logo-icon {
    font-size: 1.5rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    color: var(--gray-600);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--gray-900);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    transition: all 0.3s;
}

/* --- Hero --- */
.hero {
    background: linear-gradient(135deg, var(--gray-900) 0%, #1e3a5f 50%, var(--primary-dark) 100%);
    padding: 160px 0 100px;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    position: relative;
    max-width: 780px;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 24px;
    letter-spacing: 0.03em;
}

.hero h1 {
    font-size: 3.2rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 20px;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.75);
    margin-bottom: 36px;
    line-height: 1.7;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
    padding-top: 32px;
    border-top: 1px solid rgba(255,255,255,0.15);
}

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
}

.stat-label {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.55);
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255,255,255,0.15);
}

/* --- Section Shared --- */
.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 56px;
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
    margin-bottom: 12px;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--gray-500);
}

/* --- Services --- */
.services {
    padding: 100px 0;
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    padding: 36px 28px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all 0.25s;
}

.service-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.service-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.service-card p {
    font-size: 0.95rem;
    color: var(--gray-500);
    line-height: 1.6;
}

/* --- How It Works --- */
.how-it-works {
    padding: 100px 0;
    background: var(--gray-50);
}

.steps-grid {
    display: flex;
    align-items: flex-start;
    gap: 0;
    justify-content: center;
}

.step-card {
    flex: 1;
    max-width: 260px;
    text-align: center;
    padding: 0 16px;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    font-size: 1.2rem;
    font-weight: 800;
    margin-bottom: 20px;
}

.step-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.step-card p {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.6;
}

.step-connector {
    width: 60px;
    height: 2px;
    background: var(--gray-300);
    margin-top: 28px;
    flex-shrink: 0;
}

/* --- Who We Serve --- */
.who-we-serve {
    padding: 100px 0;
    background: var(--white);
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.audience-card {
    padding: 40px 32px;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: all 0.25s;
}

.audience-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.audience-icon {
    font-size: 2.2rem;
    margin-bottom: 16px;
}

.audience-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.audience-card > p {
    font-size: 0.95rem;
    color: var(--gray-500);
    margin-bottom: 20px;
    line-height: 1.6;
}

.audience-benefits {
    list-style: none;
    padding: 0;
}

.audience-benefits li {
    padding: 6px 0;
    padding-left: 24px;
    position: relative;
    font-size: 0.9rem;
    color: var(--gray-600);
}

.audience-benefits li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 700;
}

/* --- Why Us --- */
.why-us {
    padding: 100px 0;
    background: var(--gray-50);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.feature {
    display: flex;
    gap: 16px;
    padding: 24px;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: all 0.2s;
}

.feature:hover {
    box-shadow: var(--shadow-md);
}

.feature-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50%;
    font-weight: 800;
    font-size: 1rem;
}

.feature h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.feature p {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.5;
}

/* --- Quote Section --- */
.quote-section {
    padding: 100px 0;
    background: var(--white);
}

.quote-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: start;
}

.quote-info .section-tag {
    display: block;
    text-align: left;
}

.quote-info h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.quote-info > p {
    color: var(--gray-500);
    font-size: 1.05rem;
    margin-bottom: 32px;
    line-height: 1.7;
}

.quote-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.quote-detail strong {
    display: block;
    font-size: 0.95rem;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.quote-detail ul {
    list-style: none;
    padding: 0;
}

.quote-detail li {
    padding: 4px 0;
    padding-left: 20px;
    position: relative;
    font-size: 0.9rem;
    color: var(--gray-500);
}

.quote-detail li::before {
    content: '\2022';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

/* --- Form --- */
.quote-form {
    background: var(--gray-50);
    padding: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

label {
    display: block;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 6px;
}

input, select, textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--gray-700);
    background: var(--white);
    transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26,86,219,0.1);
}

input::placeholder, textarea::placeholder {
    color: var(--gray-400);
}

textarea {
    resize: vertical;
}

.form-note {
    text-align: center;
    font-size: 0.85rem;
    color: var(--gray-400);
    margin-top: 12px;
}

/* --- Success Message --- */
.form-success {
    text-align: center;
    padding: 60px 40px;
}

.form-success .success-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: #d1fae5;
    color: var(--success);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 20px;
}

.form-success h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
}

.form-success p {
    color: var(--gray-500);
    font-size: 1rem;
    line-height: 1.6;
}

/* --- Contact --- */
.contact {
    padding: 80px 0;
    background: var(--gray-900);
    color: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.contact-info h3 {
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.contact-info > p {
    color: var(--gray-400);
    margin-bottom: 28px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-method strong {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gray-400);
    margin-bottom: 4px;
}

.contact-method a, .contact-method span {
    color: var(--white);
    font-size: 1.05rem;
}

.contact-method a:hover {
    color: var(--primary);
}

.contact-cta {
    background: var(--gray-800);
    padding: 40px;
    border-radius: var(--radius-lg);
    text-align: center;
}

.contact-cta h3 {
    color: var(--white);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.contact-cta p {
    color: var(--gray-400);
    margin-bottom: 24px;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* --- Footer --- */
.footer {
    padding: 40px 0;
    background: var(--dark);
    border-top: 1px solid var(--gray-800);
}

.footer-content {
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 8px;
}

.footer-tagline {
    color: var(--gray-500);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 28px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--gray-400);
    font-size: 0.88rem;
    transition: color 0.2s;
}

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

.footer-copyright {
    color: var(--gray-600);
    font-size: 0.8rem;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .quote-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--gray-200);
        box-shadow: var(--shadow-lg);
    }

    .nav-links.active {
        display: flex;
    }

    .hero {
        padding: 130px 0 80px;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

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

    .hero-stats {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .stat-divider {
        display: none;
    }

    .services-grid,
    .audience-grid {
        grid-template-columns: 1fr;
    }

    .steps-grid {
        flex-direction: column;
        align-items: center;
        gap: 24px;
    }

    .step-connector {
        width: 2px;
        height: 30px;
        margin: 0;
    }

    .step-card {
        max-width: 100%;
    }

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

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .quote-form {
        padding: 28px;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn-outline {
        border-color: rgba(255,255,255,0.3);
    }
}