@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Poppins:wght@400;500;600;700;800&display=swap');

/* --- CUSTOM PROPERTIES & CSS DESIGN SYSTEM --- */
:root {
    /* Color System */
    --color-primary: #38337b;
    --color-primary-rgb: 56, 51, 123;
    --color-primary-dark: #242054;
    --color-primary-light: #524ca7;
    --color-primary-glow: rgba(56, 51, 123, 0.3);
    
    --color-secondary: #f2671e;
    --color-secondary-rgb: 242, 103, 30;
    --color-secondary-light: #ff8243;
    --color-secondary-glow: rgba(242, 103, 30, 0.3);
    
    /* Layout Backgrounds */
    --color-bg-dark: #070514;
    --color-bg-dark-accent: #0f0d25;
    --color-bg-light: #f6f5fb;
    --color-bg-white: #ffffff;
    
    /* Text Colors */
    --color-text-dark: #121021;
    --color-text-muted: #5e5b77;
    --color-text-light: #ffffff;
    --color-text-light-muted: #b4b1cd;
    
    /* Glassmorphism & Borders */
    --glass-bg: rgba(15, 13, 37, 0.7);
    --glass-border: rgba(242, 103, 30, 0.15);
    --glass-border-light: rgba(255, 255, 255, 0.08);
    --card-shadow: 0 10px 30px -5px rgba(7, 5, 20, 0.1);
    --card-shadow-hover: 0 20px 40px -10px rgba(56, 51, 123, 0.25);
    --glow-shadow: 0 0 20px var(--color-primary-glow);
    --orange-glow-shadow: 0 0 20px var(--color-secondary-glow);
    
    /* Typography */
    --font-headings: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Borders & Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 24px;
    --radius-xl: 36px;
    --radius-round: 50%;
    
    /* Transitions */
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease-out;
}

/* --- RESET & BASIC STYLES --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--color-bg-light);
    color: var(--color-text-dark);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

body {
    overflow-x: hidden;
}

/* Premium Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--color-bg-dark);
}
::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: var(--radius-sm);
    border: 2px solid var(--color-bg-dark);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-secondary);
}

/* Typography Defaults */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headings);
    color: var(--color-primary-dark);
    font-weight: 700;
    line-height: 1.25;
}

p {
    color: var(--color-text-muted);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* --- MAIN CONTAINER & UTILITIES --- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding {
    padding: 100px 0;
}

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

.text-light {
    color: var(--color-text-light);
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-secondary), #ff8f52);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.gradient-text-purple {
    background: linear-gradient(135deg, var(--color-primary-light), #8a82e5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Premium Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-family: var(--font-headings);
    font-weight: 600;
    font-size: 15px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    gap: 8px;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-text-light);
    box-shadow: 0 4px 14px var(--color-primary-glow);
}

.btn-primary:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(56, 51, 123, 0.4);
}

.btn-secondary {
    background: var(--color-secondary);
    color: var(--color-text-light);
    box-shadow: 0 4px 14px var(--color-secondary-glow);
}

.btn-secondary:hover {
    background: var(--color-secondary-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(242, 103, 30, 0.4);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-text-light-muted);
    color: var(--color-text-light);
}

.btn-outline:hover {
    border-color: var(--color-secondary);
    background: var(--color-secondary);
    color: var(--color-text-light);
    transform: translateY(-2px);
}

.btn-outline-dark {
    background: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

.btn-outline-dark:hover {
    background: var(--color-primary);
    color: var(--color-text-light);
    transform: translateY(-2px);
}

/* Dark Section Layout */
.bg-dark-section {
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    position: relative;
    overflow: hidden;
}

.bg-dark-section::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
    top: -100px;
    right: -100px;
    z-index: 1;
    pointer-events: none;
}

.bg-dark-section::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--color-secondary-glow) 0%, transparent 70%);
    bottom: -100px;
    left: -100px;
    z-index: 1;
    pointer-events: none;
}

/* Glassmorphic Card base */
.glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border-light);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition-smooth);
    position: relative;
    z-index: 2;
}

.glass-card:hover {
    border-color: var(--glass-border);
    box-shadow: var(--card-shadow-hover);
    transform: translateY(-5px);
}

/* --- STICKY NAV HEADER --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 20px 0;
    transition: var(--transition-smooth);
}

.header.scrolled {
    padding: 12px 0;
    background: rgba(13, 11, 33, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

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

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-wrapper img {
    height: 48px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-smooth);
}

.header.scrolled .logo-wrapper img {
    height: 40px;
}

.brand-text {
    font-family: var(--font-headings);
    font-weight: 800;
    font-size: 24px;
    letter-spacing: -0.5px;
    color: var(--color-text-light);
}

.brand-text span {
    color: var(--color-secondary);
}

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

.nav-link {
    font-family: var(--font-headings);
    font-weight: 500;
    font-size: 15px;
    color: var(--color-text-light-muted);
    position: relative;
    padding: 6px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-secondary);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-text-light);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link.active {
    color: var(--color-text-light);
}

/* Mobile Nav Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 101;
}

.mobile-toggle span {
    display: block;
    width: 28px;
    height: 3px;
    background: var(--color-text-light);
    border-radius: var(--radius-sm);
    transition: var(--transition-smooth);
}

/* --- HERO SECTION --- */
.hero {
    min-height: 100vh;
    padding-top: 150px;
    padding-bottom: 100px;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.hero-tag {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(242, 103, 30, 0.1);
    border: 1px solid rgba(242, 103, 30, 0.2);
    color: var(--color-secondary-light);
    border-radius: 100px;
    font-family: var(--font-headings);
    font-weight: 600;
    font-size: 13px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 24px;
    animation: pulseGlow 3s infinite ease-in-out;
}

.hero-title {
    font-size: 52px;
    line-height: 1.15;
    font-weight: 800;
    color: var(--color-text-light);
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.hero-title span {
    color: var(--color-secondary);
}

.hero-desc {
    font-size: 18px;
    color: var(--color-text-light-muted);
    margin-bottom: 40px;
    max-width: 580px;
}

.hero-btns {
    display: flex;
    gap: 16px;
}

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

/* Animated Biotech Cell Sphere */
.biotech-sphere-container {
    width: 360px;
    height: 360px;
    position: relative;
}

.biotech-sphere {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-round);
    background: radial-gradient(circle, rgba(56,51,123,0.3) 0%, rgba(7,5,20,0.8) 70%);
    border: 3px dashed var(--color-primary-light);
    position: absolute;
    animation: rotateSphere 20s linear infinite;
    box-shadow: var(--glow-shadow);
}

.biotech-sphere-inner {
    width: 80%;
    height: 80%;
    border-radius: var(--radius-round);
    background: radial-gradient(circle, rgba(242,103,30,0.2) 0%, rgba(7,5,20,0.9) 70%);
    border: 2px dashed var(--color-secondary);
    position: absolute;
    top: 10%;
    left: 10%;
    animation: rotateSphereReverse 15s linear infinite;
    box-shadow: var(--orange-glow-shadow);
}

.biotech-product-shot {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    height: 70%;
    width: auto;
    max-width: 70%;
    object-fit: contain;
    z-index: 10;
    filter: drop-shadow(0 15px 30px rgba(56, 51, 123, 0.4));
    animation: floatProduct 4s ease-in-out infinite;
}

/* --- SCIENTIFIC BREAKTHROUGH --- */
.section-title-wrapper {
    max-width: 700px;
    margin: 0 auto 60px auto;
}

.section-subtitle {
    font-family: var(--font-headings);
    color: var(--color-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 14px;
    letter-spacing: 1px;
    margin-bottom: 12px;
    display: block;
}

.section-title {
    font-size: 38px;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 20px;
}

.section-desc {
    font-size: 16px;
    color: var(--color-text-muted);
}

.science-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.science-cards {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.enzyme-card {
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--card-shadow);
    transition: var(--transition-smooth);
    border: 1px solid rgba(56, 51, 123, 0.05);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.enzyme-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 35px rgba(56, 51, 123, 0.08);
    border-color: rgba(56, 51, 123, 0.15);
}

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

.enzyme-title {
    font-size: 20px;
    color: var(--color-primary-dark);
}

.enzyme-badge {
    padding: 6px 12px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 700;
    background: rgba(242, 103, 30, 0.1);
    color: var(--color-secondary);
}

.enzyme-rates-container {
    display: grid;
    grid-template-columns: 1fr auto 1.2fr;
    align-items: center;
    gap: 16px;
    background: var(--color-bg-light);
    padding: 16px;
    border-radius: var(--radius-md);
}

.rate-item {
    display: flex;
    flex-direction: column;
}

.rate-label {
    font-size: 11px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    font-weight: 500;
}

.rate-val {
    font-size: 18px;
    font-family: var(--font-headings);
    font-weight: 700;
    color: var(--color-primary);
}

.rate-val.enhanced {
    color: var(--color-secondary);
}

.rate-arrow {
    color: var(--color-text-muted);
    font-size: 18px;
}

.science-visual {
    background: var(--color-primary-dark);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: 0 15px 40px rgba(7, 5, 20, 0.15);
    color: var(--color-text-light);
    display: flex;
    flex-direction: column;
    gap: 24px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.catalase-badge {
    background: linear-gradient(135deg, var(--color-secondary), #ff8443);
    padding: 12px 20px;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.catalase-title {
    font-size: 18px;
    font-weight: 700;
}

.catalase-desc {
    font-size: 13px;
    opacity: 0.9;
    line-height: 1.4;
}

.science-stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.science-stat-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    padding: 20px;
    text-align: center;
    transition: var(--transition-fast);
}

.science-stat-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--color-secondary);
}

.stat-num {
    font-size: 32px;
    font-family: var(--font-headings);
    font-weight: 800;
    color: var(--color-secondary-light);
    margin-bottom: 4px;
}

.stat-txt {
    font-size: 13px;
    color: var(--color-text-light-muted);
}

/* --- 4 CORE CAPABILITIES --- */
.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 28px;
}

.capability-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border-light);
    border-radius: var(--radius-lg);
    padding: 36px;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.capability-card:hover {
    border-color: var(--color-secondary);
    box-shadow: 0 15px 35px rgba(242, 103, 30, 0.15);
    transform: translateY(-6px);
}

.cap-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: rgba(242, 103, 30, 0.1);
    border: 1px solid rgba(242, 103, 30, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-secondary-light);
    font-size: 24px;
    transition: var(--transition-smooth);
}

.capability-card:hover .cap-icon {
    background: var(--color-secondary);
    color: var(--color-text-light);
    box-shadow: var(--orange-glow-shadow);
}

.cap-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text-light);
}

.cap-desc {
    font-size: 14px;
    color: var(--color-text-light-muted);
    line-height: 1.6;
}

/* --- WHY SEPT-X & BENEFITS --- */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.benefit-card {
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(56, 51, 123, 0.03);
    transition: var(--transition-smooth);
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(56, 51, 123, 0.08);
    border-color: rgba(56, 51, 123, 0.1);
}

.benefit-icon-wrapper {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    background: rgba(56, 51, 123, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-size: 20px;
}

.benefit-card:hover .benefit-icon-wrapper {
    background: var(--color-primary);
    color: var(--color-text-light);
}

.benefit-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.benefit-tag {
    font-size: 24px;
    font-family: var(--font-headings);
    font-weight: 800;
    color: var(--color-secondary);
}

.benefit-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary-dark);
}

.benefit-desc {
    font-size: 14px;
    color: var(--color-text-muted);
}

/* --- DOSING CALCULATOR --- */
.calc-card {
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 50px rgba(7, 5, 20, 0.08);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    border: 1px solid rgba(56, 51, 123, 0.05);
}

.calc-inputs-pane {
    padding: 48px;
    background: #ffffff;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.calc-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary-dark);
}

.calc-desc {
    font-size: 14px;
    color: var(--color-text-muted);
    margin-top: -16px;
}

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

.form-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-primary-dark);
    display: flex;
    align-items: center;
    gap: 6px;
}

.input-with-units {
    position: relative;
    display: flex;
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #e1e0eb;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 16px;
    transition: var(--transition-fast);
    outline: none;
    color: var(--color-text-dark);
}

.form-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(56, 51, 123, 0.1);
}

.input-addon {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-muted);
    pointer-events: none;
}

.radio-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.radio-card {
    position: relative;
    cursor: pointer;
}

.radio-card input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.radio-design {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px;
    border: 2px solid #e1e0eb;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    text-align: center;
    gap: 8px;
}

.radio-icon {
    font-size: 20px;
    color: var(--color-text-muted);
}

.radio-text {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-muted);
}

.radio-card input:checked + .radio-design {
    border-color: var(--color-primary);
    background: rgba(56, 51, 123, 0.03);
}

.radio-card input:checked + .radio-design .radio-icon {
    color: var(--color-primary);
}

.radio-card input:checked + .radio-design .radio-text {
    color: var(--color-primary-dark);
}

.calc-results-pane {
    padding: 48px;
    background: var(--color-bg-dark-accent);
    color: var(--color-text-light);
    display: flex;
    flex-direction: column;
    gap: 32px;
    border-left: 1px solid rgba(255, 255, 255, 0.05);
}

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

.results-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text-light);
}

.calc-toggle {
    display: flex;
    background: rgba(255, 255, 255, 0.05);
    padding: 4px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.toggle-btn {
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 600;
    background: none;
    border: none;
    color: var(--color-text-light-muted);
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.toggle-btn.active {
    background: var(--color-secondary);
    color: var(--color-text-light);
    box-shadow: 0 3px 8px var(--color-secondary-glow);
}

.main-saving-metric {
    background: linear-gradient(135deg, rgba(56, 51, 123, 0.3) 0%, rgba(242, 103, 30, 0.1) 100%);
    border: 1px solid rgba(242, 103, 30, 0.2);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    box-shadow: 0 8px 24px rgba(7, 5, 20, 0.15);
}

.metric-lbl {
    font-size: 12px;
    color: var(--color-text-light-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.metric-val {
    font-size: 36px;
    font-family: var(--font-headings);
    font-weight: 800;
    color: var(--color-secondary-light);
    margin: 4px 0;
}

.metric-desc {
    font-size: 13px;
    color: var(--color-text-light-muted);
}

.schedule-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.schedule-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
}

.sched-day {
    font-weight: 600;
    font-size: 14px;
    color: var(--color-text-light-muted);
}

.sched-dose {
    font-family: var(--font-headings);
    font-weight: 700;
    font-size: 16px;
    color: var(--color-text-light);
}

.roi-metrics-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.roi-metric-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-md);
    padding: 16px;
}

.roi-lbl {
    font-size: 11px;
    color: var(--color-text-light-muted);
    text-transform: uppercase;
}

.roi-val {
    font-size: 18px;
    font-family: var(--font-headings);
    font-weight: 700;
    color: var(--color-secondary-light);
}

/* --- CASE STUDIES & PROOF --- */
.case-tabs {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
}

.case-tab {
    padding: 14px 28px;
    background: var(--color-bg-white);
    border: 1px solid #e1e0eb;
    border-radius: var(--radius-md);
    font-family: var(--font-headings);
    font-weight: 600;
    font-size: 15px;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.case-tab.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text-light);
    box-shadow: 0 4px 14px var(--color-primary-glow);
}

.case-content-wrapper {
    position: relative;
    min-height: 400px;
}

.case-pane {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
}

.case-pane.active {
    position: relative;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.case-info-pane {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.case-site-meta {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.meta-item {
    font-size: 13px;
    background: rgba(56, 51, 123, 0.05);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.case-body-text {
    font-size: 15px;
    color: var(--color-text-muted);
    line-height: 1.7;
}

.case-bullet-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.case-bullet-list li {
    font-size: 14px;
    color: var(--color-text-muted);
    padding-left: 24px;
    position: relative;
}

.case-bullet-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-secondary);
    font-weight: 900;
}

.case-data-pane {
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(56, 51, 123, 0.05);
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.case-data-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary-dark);
    border-bottom: 2px solid var(--color-bg-light);
    padding-bottom: 12px;
}

/* Slick Case Study Table */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th, .data-table td {
    padding: 12px 8px;
    text-align: left;
    font-size: 14px;
}

.data-table th {
    font-weight: 600;
    color: var(--color-text-muted);
    border-bottom: 1px solid #e1e0eb;
    text-transform: uppercase;
    font-size: 11px;
}

.data-table td {
    border-bottom: 1px solid #f0eff5;
    color: var(--color-text-dark);
}

.param-name {
    font-weight: 600;
    color: var(--color-primary-dark);
}

.imp-badge {
    padding: 4px 8px;
    background: rgba(0, 181, 39, 0.1);
    color: #00b527;
    border-radius: 4px;
    font-weight: 700;
    font-size: 12px;
}

/* --- TECHNICAL DOCUMENT LIBRARY --- */
.docs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.doc-card {
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--card-shadow);
    transition: var(--transition-smooth);
    border: 1px solid rgba(56, 51, 123, 0.03);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.doc-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(56, 51, 123, 0.08);
    border-color: rgba(56, 51, 123, 0.1);
}

.doc-icon {
    font-size: 32px;
    color: var(--color-secondary);
}

.doc-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary-dark);
}

.doc-desc {
    font-size: 14px;
    color: var(--color-text-muted);
    flex-grow: 1;
}

.doc-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #f0eff5;
    padding-top: 16px;
    margin-top: 10px;
}

.doc-size {
    font-size: 12px;
    color: var(--color-text-muted);
    font-weight: 500;
}

.doc-download-btn {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.doc-download-btn:hover {
    color: var(--color-secondary);
}

/* --- COMPARISON TABLE --- */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(56, 51, 123, 0.08);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: #ffffff;
    min-width: 800px;
}

.comparison-table th, .comparison-table td {
    padding: 20px 24px;
    text-align: left;
}

.comparison-table th {
    background: var(--color-primary-dark);
    color: var(--color-text-light);
    font-family: var(--font-headings);
    font-weight: 600;
    font-size: 15px;
    border-bottom: none;
}

.comparison-table th:nth-child(2) {
    background: var(--color-primary);
}

.comparison-table td {
    border-bottom: 1px solid #e6e5f0;
    font-size: 14px;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table tr:hover {
    background: var(--color-bg-light);
}

.comp-feature {
    font-weight: 700;
    color: var(--color-primary-dark);
    width: 25%;
}

.comp-septx {
    width: 38%;
    background: rgba(56, 51, 123, 0.015);
    font-weight: 500;
    color: var(--color-text-dark);
    border-left: 1px solid #e6e5f0;
    border-right: 1px solid #e6e5f0;
}

.comp-others {
    width: 37%;
    color: var(--color-text-muted);
}

/* Checkmark symbols styling */
.comp-septx-bullet {
    display: inline-block;
    color: #00b527;
    font-weight: 700;
    margin-right: 8px;
}

.comp-others-bullet {
    display: inline-block;
    color: #e34c00;
    font-weight: 700;
    margin-right: 8px;
}

/* --- CONTACT & INQUIRY FORM --- */
.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 50px;
    align-items: center;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.contact-title {
    font-size: 36px;
    font-weight: 800;
    color: var(--color-text-light);
}

.contact-desc {
    font-size: 16px;
    color: var(--color-text-light-muted);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.detail-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: rgba(242, 103, 30, 0.1);
    color: var(--color-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.detail-txt {
    display: flex;
    flex-direction: column;
}

.detail-label {
    font-size: 12px;
    color: var(--color-text-light-muted);
    font-weight: 500;
}

.detail-val {
    font-size: 15px;
    font-weight: 700;
    color: var(--color-text-light);
}

.contact-card {
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(56, 51, 123, 0.05);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-element {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-element.textarea {
    margin-bottom: 28px;
}

.form-textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #e1e0eb;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 16px;
    transition: var(--transition-fast);
    outline: none;
    color: var(--color-text-dark);
    min-height: 120px;
    resize: vertical;
}

.form-textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(56, 51, 123, 0.1);
}

.submit-btn {
    width: 100%;
    padding: 16px;
    border-radius: var(--radius-md);
    background: var(--color-primary);
    color: var(--color-text-light);
    font-family: var(--font-headings);
    font-weight: 700;
    font-size: 16px;
    border: none;
    cursor: pointer;
    box-shadow: 0 6px 18px var(--color-primary-glow);
    transition: var(--transition-smooth);
}

.submit-btn:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(56, 51, 123, 0.4);
}

/* --- FOOTER --- */
.footer {
    background: var(--color-bg-dark-accent);
    color: var(--color-text-light);
    padding-top: 80px;
    padding-bottom: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 0.8fr 1.2fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-logo img {
    height: 48px;
    width: auto;
}

.footer-tagline {
    font-size: 14px;
    color: var(--color-text-light-muted);
    line-height: 1.6;
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text-light);
    font-family: var(--font-headings);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 14px;
    color: var(--color-text-light-muted);
}

.footer-links a:hover {
    color: var(--color-secondary);
    padding-left: 4px;
}

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

.f-contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--color-text-light-muted);
}

.f-contact-item i {
    color: var(--color-secondary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 40px;
    font-size: 13px;
    color: var(--color-text-light-muted);
}

.footer-socials {
    display: flex;
    gap: 16px;
}

.social-link {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light-muted);
    transition: var(--transition-fast);
}

.social-link:hover {
    background: var(--color-secondary);
    color: var(--color-text-light);
    border-color: var(--color-secondary);
}

/* --- ANIMATION KEYFRAMES --- */
@keyframes rotateSphere {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes rotateSphereReverse {
    0% { transform: rotate(360deg); }
    100% { transform: rotate(0deg); }
}

@keyframes floatProduct {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

@keyframes pulseGlow {
    0%, 100% {
        box-shadow: 0 0 5px rgba(242, 103, 30, 0.2);
        border-color: rgba(242, 103, 30, 0.2);
    }
    50% {
        box-shadow: 0 0 15px rgba(242, 103, 30, 0.4);
        border-color: rgba(242, 103, 30, 0.5);
    }
}

/* Scroll Animation classes */
.fade-in-section {
    opacity: 0;
    transform: translateY(30px);
    visibility: hidden;
    transition: opacity 0.8s ease-out, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in-section.is-visible {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
}

/* --- RESPONSIVE BREAKPOINTS --- */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .hero-desc {
        margin: 0 auto 40px auto;
    }
    
    .hero-btns {
        justify-content: center;
    }
    
    .science-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .calc-card {
        grid-template-columns: 1fr;
    }
    
    .calc-results-pane {
        border-left: none;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    .case-pane {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .case-pane.active {
        position: relative;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .section-padding {
        padding: 70px 0;
    }
    
    .section-title {
        font-size: 30px;
    }
    
    .nav-links {
        display: none; /* In production, toggled via JavaScript mobile menu class */
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    /* Mobile Menu Drawer when Active */
    .header.nav-active .nav-links {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 0;
        right: 0;
        width: 280px;
        height: 100vh;
        background: var(--color-bg-dark-accent);
        padding: 100px 40px;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.3);
        z-index: 99;
        animation: slideInRight 0.3s ease-out;
    }
    
    .header.nav-active .mobile-toggle span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }
    
    .header.nav-active .mobile-toggle span:nth-child(2) {
        opacity: 0;
    }
    
    .header.nav-active .mobile-toggle span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }
    
    .calc-inputs-pane, .calc-results-pane {
        padding: 30px 24px;
    }
    
    .roi-metrics-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@keyframes slideInRight {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}

/* --- BRAND MEDIA BACKDROP TEXTURES --- */
#hero-sec {
    background: linear-gradient(rgba(7, 5, 20, 0.85), rgba(7, 5, 20, 0.85)), url('../assets/images/slider1.jpg') no-repeat center center/cover;
}

#capabilities {
    background: linear-gradient(rgba(7, 5, 20, 0.9), rgba(7, 5, 20, 0.9)), url('../assets/images/Slider2.jpg') no-repeat center center/cover;
}

#calculator {
    background: linear-gradient(rgba(7, 5, 20, 0.9), rgba(7, 5, 20, 0.9)), url('../assets/images/slider3.jpg') no-repeat center center/cover;
}

#contact {
    background: linear-gradient(rgba(7, 5, 20, 0.92), rgba(7, 5, 20, 0.92)), url('../assets/images/slider4.JPG') no-repeat center center/cover;
}

/* --- PRODUCT PRESENTATION CAROUSEL --- */
.presentation-carousel-container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--color-bg-dark-accent);
    border: 1px solid var(--glass-border-light);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: 0 15px 40px rgba(7, 5, 20, 0.3);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.carousel-slide-wrapper {
    width: 100%;
    aspect-ratio: 16/9;
    background: #000;
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.carousel-slide-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: opacity 0.3s ease-in-out;
}

.carousel-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 10px;
}

.slide-indicator {
    font-family: var(--font-headings);
    font-weight: 600;
    font-size: 15px;
    color: var(--color-text-light-muted);
}