/* ===== CSS Variables & Reset ===== */
:root {
    --primary: #0066CC;
    --primary-dark: #004C99;
    --primary-light: #E6F0FA;
    --secondary: #00A3A3;
    --accent: #FF6B35;
    --dark: #1A1A2E;
    --dark-light: #2D2D44;
    --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: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    --transition: all 0.3s ease;
}

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

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

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* ===== Utility Classes ===== */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.logo-icon {
    width: 70px;   /* Adjust as needed */
    height: 70px;
    object-fit: contain;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    font-family: var(--font-primary);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

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

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

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

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

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

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

.btn--full {
    width: 100%;
}

.section__subtitle {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.section__title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    color: var(--dark);
    line-height: 1.2;
    margin-bottom: 1rem;
}

.section__description {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 600px;
}

.section__header {
    margin-bottom: 3rem;
}

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

.section__header--center .section__description {
    margin: 0 auto;
}

/* ===== Header & Navigation ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    transition: var(--transition);
}

.header.scrolled {
    background: var(--white);
    box-shadow: var(--shadow-md);
}

.header.scrolled .nav__link {
    color: var(--gray-700);
}

.header.scrolled .nav__link:hover,
.header.scrolled .nav__link.active {
    color: var(--primary);
}

.header.scrolled .logo-text {
    color: var(--dark);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 100;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    transition: var(--transition);
}

.header.scrolled .logo-text {
    color: var(--dark);
}

.nav__list {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav__link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--white);
    position: relative;
    padding: 0.5rem 0;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav__link:hover::after,
.nav__link.active::after {
    width: 100%;
}

.nav__toggle,
.nav__close {
    display: none;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1579684385127-1ef15d508118?w=1920&h=1080&fit=crop') center/cover no-repeat;
    opacity: 0.15;
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.9) 0%, rgba(26, 26, 46, 0.95) 100%);
}

.hero__content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 6rem 0;
}

.hero__title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero__title span {
    background: linear-gradient(90deg, var(--secondary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__description {
    font-size: 1.25rem;
    color: var(--gray-300);
    max-width: 600px;
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero__buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.hero__scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-400);
    font-size: 0.875rem;
    animation: bounce 2s infinite;
}

.hero__scroll-icon {
    width: 24px;
    height: 40px;
    border: 2px solid var(--gray-400);
    border-radius: 12px;
    position: relative;
}

.hero__scroll-icon::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--gray-400);
    border-radius: 2px;
    animation: scroll-indicator 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

@keyframes scroll-indicator {
    0% { opacity: 1; top: 8px; }
    100% { opacity: 0; top: 20px; }
}

/* ===== Stats Section ===== */
.stats {
    background: var(--primary);
    padding: 4rem 0;
}

.stats__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.stat {
    text-align: center;
    color: var(--white);
}

.stat__number {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 700;
    display: inline;
}

.stat__suffix {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
}

.stat__label {
    font-size: 0.9375rem;
    opacity: 0.9;
    margin-top: 0.5rem;
}

/* ===== About Section ===== */
.about {
    padding: 6rem 0;
    background: var(--gray-50);
}

.about__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about__image {
    position: relative;
}

.about__image img {
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.about__image-badge {
    position: absolute;
    bottom: -1.5rem;
    right: -1.5rem;
    background: var(--primary);
    color: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.badge__number {
    display: block;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
}

.badge__text {
    font-size: 0.8125rem;
    opacity: 0.9;
}

.about__text h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--dark);
    margin: 1.5rem 0 0.75rem;
}

.about__text h3:first-of-type {
    margin-top: 0;
}

.about__text p {
    color: var(--gray-600);
    margin-bottom: 1rem;
}

.about__features {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 2rem 0;
}

.feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--white);
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.feature__icon {
    width: 24px;
    height: 24px;
    color: var(--success);
}

.feature__icon svg {
    width: 100%;
    height: 100%;
}

.feature span {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
}

/* ===== Team Section ===== */
.team {
    padding: 6rem 0;
    background: var(--gray-50);
}

.team__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.team-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.team-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.team-card__image {
    width: 100%;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background: var(--gray-100);
}

.team-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-card__content {
    padding: 1.75rem 1.5rem 2rem;
}

.team-card__name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.25rem;
}

.team-card__role {
    display: block;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.team-card__bio {
    font-size: 0.9375rem;
    color: var(--gray-600);
    line-height: 1.6;
}

/* ===== Products Section ===== */
.products {
    padding: 6rem 0;
}

.products__tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 3rem;
}

.tab {
    padding: 0.75rem 1.5rem;
    font-family: var(--font-primary);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--gray-600);
    background: var(--gray-100);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
}

.tab:hover {
    background: var(--gray-200);
}

.tab.active {
    background: var(--primary);
    color: var(--white);
}

.products__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.product-card.hidden {
    display: none;
}

.product-card__image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.product-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-card:hover .product-card__image img {
    transform: scale(1.05);
}

.product-card__badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--white);
    background: var(--primary);
    border-radius: var(--radius-sm);
}

.product-card__content {
    padding: 1.5rem;
}

.product-card__title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.product-card__description {
    font-size: 0.9375rem;
    color: var(--gray-600);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.product-card__link {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--primary);
}

.product-card__link:hover {
    color: var(--primary-dark);
}

/* ===== Research Section ===== */
.research {
    padding: 6rem 0;
    background: var(--gray-50);
}

.research__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.research__text p {
    color: var(--gray-600);
    margin-bottom: 2rem;
    font-size: 1.0625rem;
}

.research__areas {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.research-area {
    display: flex;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.research-area:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(8px);
}

.research-area__icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: var(--radius);
}

.research-area__icon svg {
    width: 24px;
    height: 24px;
}

.research-area__content h4 {
    font-size: 1.0625rem;
    color: var(--dark);
    margin-bottom: 0.25rem;
}

.research-area__content p {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin: 0;
}

.research__image {
    position: relative;
}

.research__image > img {
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.research__stats {
    position: absolute;
    bottom: 2rem;
    left: -2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.research-stat {
    background: var(--white);
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.research-stat__number {
    display: block;
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
}

.research-stat__label {
    font-size: 0.8125rem;
    color: var(--gray-600);
}

/* ===== Pipeline Section ===== */
.pipeline {
    padding: 4rem 0;
    background: var(--dark);
}

.pipeline .section__subtitle,
.pipeline .section__title {
    color: var(--white);
}

.pipeline__table-wrapper {
    overflow-x: auto;
}

.pipeline__table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.pipeline__table th,
.pipeline__table td {
    padding: 1.25rem 1.5rem;
    text-align: left;
}

.pipeline__table th {
    background: var(--gray-100);
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-600);
}

.pipeline__table td {
    border-bottom: 1px solid var(--gray-200);
    font-size: 0.9375rem;
    color: var(--gray-700);
}

.pipeline__table tbody tr:last-child td {
    border-bottom: none;
}

.pipeline__table tbody tr:hover {
    background: var(--gray-50);
}

.phase {
    display: inline-block;
    width: 100%;
    height: 8px;
    background: var(--gray-200);
    border-radius: 4px;
    position: relative;
}

.phase.completed {
    background: var(--success);
}

.phase.active {
    background: linear-gradient(90deg, var(--success) 50%, var(--gray-200) 50%);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* ===== Careers Section ===== */
.careers {
    padding: 6rem 0;
}

.careers__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.careers__text p {
    color: var(--gray-600);
    margin-bottom: 2rem;
    font-size: 1.0625rem;
}

.careers__benefits {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.benefit {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--gray-50);
    border-radius: var(--radius);
}

.benefit svg {
    width: 24px;
    height: 24px;
    color: var(--primary);
    flex-shrink: 0;
}

.benefit span {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--gray-700);
}

.careers__openings {
    background: var(--gray-50);
    padding: 2rem;
    border-radius: var(--radius-xl);
}

.careers__openings h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--dark);
    margin-bottom: 1.5rem;
}

.job-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.job-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.job-card__header h4 {
    font-size: 1.0625rem;
    color: var(--dark);
}

.job-card__type {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--white);
    background: var(--secondary);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
}

.job-card__location {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-bottom: 0.5rem;
}

.job-card__description {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: 0.75rem;
}

.job-card__link {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
}

.careers__openings .btn {
    width: 100%;
    margin-top: 1rem;
}

/* ===== News Section ===== */
.news {
    padding: 6rem 0;
    background: var(--gray-50);
}

.news__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.news-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.news-card:hover {
    box-shadow: var(--shadow-xl);
}

.news-card--featured {
    grid-column: 1;
    grid-row: 1 / 3;
}

.news-card__image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.news-card--featured .news-card__image {
    height: 300px;
}

.news-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.news-card:hover .news-card__image img {
    transform: scale(1.05);
}

.news-card__category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--white);
    background: var(--primary);
    border-radius: var(--radius-sm);
}

.news-card__content {
    padding: 1.5rem;
}

.news-card__date {
    font-size: 0.8125rem;
    color: var(--gray-500);
    display: block;
    margin-bottom: 0.5rem;
}

.news-card__title {
    font-family: var(--font-display);
    font-size: 1.125rem;
    color: var(--dark);
    line-height: 1.4;
    margin-bottom: 0.75rem;
}

.news-card--featured .news-card__title {
    font-size: 1.5rem;
}

.news-card__excerpt {
    font-size: 0.9375rem;
    color: var(--gray-600);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.news-card__link {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--primary);
}

/* ===== Contact Section ===== */
.contact {
    padding: 6rem 0;
}

.contact__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact__info p {
    color: var(--gray-600);
    margin-bottom: 2rem;
    font-size: 1.0625rem;
}

.contact__details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
}

.contact-item__icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: var(--radius);
}

.contact-item__icon svg {
    width: 24px;
    height: 24px;
}

.contact-item__text h4 {
    font-size: 1rem;
    color: var(--dark);
    margin-bottom: 0.25rem;
}

.contact-item__text p {
    font-size: 0.9375rem;
    color: var(--gray-600);
    margin: 0;
    line-height: 1.5;
}

.contact__form-wrapper {
    background: var(--gray-50);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
}

.contact__form h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--dark);
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    font-family: var(--font-primary);
    font-size: 0.9375rem;
    color: var(--gray-700);
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-note {
    font-size: 0.8125rem;
    color: var(--gray-500);
    margin-top: 1rem;
    text-align: center;
}

.form-success {
    text-align: center;
    padding: 3rem 2rem;
}

.form-success svg {
    width: 64px;
    height: 64px;
    color: var(--success);
    margin: 0 auto 1.5rem;
}

.form-success h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--dark);
    margin-bottom: 0.75rem;
}

.form-success p {
    color: var(--gray-600);
}

/* ===== Footer ===== */
.footer {
    background: var(--dark);
    color: var(--gray-300);
    padding-top: 4rem;
}

.footer__top {
    display: grid;
    grid-template-columns: 1.5fr 2.5fr;
    gap: 4rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--dark-light);
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.footer__logo span {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
}

.footer__brand p {
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.footer__social {
    display: flex;
    gap: 1rem;
}

.footer__social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--dark-light);
    border-radius: var(--radius);
    color: var(--gray-400);
    transition: var(--transition);
}

.footer__social a:hover {
    background: var(--primary);
    color: var(--white);
}

.footer__links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.footer__column h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 1.25rem;
}

.footer__column ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer__column a {
    font-size: 0.9375rem;
    color: var(--gray-400);
}

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

.footer__bottom {
    padding: 1.5rem 0;
    text-align: center;
}

.footer__bottom p {
    font-size: 0.8125rem;
    color: var(--gray-500);
    margin-bottom: 0.5rem;
}

.footer__bottom p:last-child {
    margin-bottom: 0;
}

/* ===== Back to Top Button ===== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
    box-shadow: var(--shadow-lg);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-4px);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

/* ===== Responsive Styles ===== */
@media (max-width: 1024px) {
    .about__content,
    .research__content,
    .careers__content,
    .contact__content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .products__grid,
    .team__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news__grid {
        grid-template-columns: 1fr;
    }
    
    .news-card--featured {
        grid-column: 1;
        grid-row: 1;
    }
    
    .footer__top {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer__links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .research__stats {
        position: static;
        flex-direction: row;
        justify-content: center;
        margin-top: 1.5rem;
    }
    
    .about__image-badge {
        right: 1rem;
        bottom: -1rem;
    }
}

@media (max-width: 768px) {
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--white);
        box-shadow: var(--shadow-xl);
        padding: 5rem 2rem 2rem;
        transition: var(--transition);
        z-index: 99;
    }
    
    .nav__menu.active {
        right: 0;
    }
    
    .nav__list {
        flex-direction: column;
        gap: 0;
    }
    
    .nav__link {
        display: block;
        padding: 1rem 0;
        color: var(--gray-700);
        border-bottom: 1px solid var(--gray-200);
    }
    
    .nav__toggle {
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: 5px;
        width: 32px;
        height: 32px;
        background: transparent;
        border: none;
        cursor: pointer;
        z-index: 100;
    }
    
    .nav__toggle span {
        width: 24px;
        height: 2px;
        background: var(--white);
        transition: var(--transition);
    }
    
    .header.scrolled .nav__toggle span {
        background: var(--dark);
    }
    
    .nav__close {
        display: block;
        position: absolute;
        top: 1.5rem;
        right: 1.5rem;
        font-size: 2rem;
        background: transparent;
        border: none;
        color: var(--gray-600);
        cursor: pointer;
    }
    
    .stats__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .products__grid,
    .team__grid {
        grid-template-columns: 1fr;
    }
    
    .careers__benefits {
        grid-template-columns: 1fr;
    }
    
    .footer__links {
        grid-template-columns: 1fr 1fr;
    }
    
    .hero__scroll {
        display: none;
    }
    
    .pipeline__table th,
    .pipeline__table td {
        padding: 1rem;
        font-size: 0.8125rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero__buttons {
        flex-direction: column;
    }
    
    .hero__buttons .btn {
        width: 100%;
    }
    
    .stats__grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .about__features {
        flex-direction: column;
    }
    
    .footer__links {
        grid-template-columns: 1fr;
    }
    
    .research__stats {
        flex-direction: column;
    }
    
    .contact__form-wrapper {
        padding: 1.5rem;
    }
}

/* ===== Animation Classes ===== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}