:root {
    --primary: #00a8ff;
    --primary-dark: #0077b6;
    --secondary: #3b82f6;
    --accent: #06b6d4;
    --dark: #0a0f1c;
    --dark-2: #111827;
    --dark-3: #1e293b;
    --gray: #64748b;
    --gray-light: #94a3b8;
    --light: #f8fafc;
    --white: #ffffff;
    --gradient: linear-gradient(135deg, var(--primary), var(--secondary));
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--dark);
    color: var(--light);
    line-height: 1.7;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 120px 0;
    position: relative;
}

.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 168, 255, 0.2), transparent);
}

.section-glow {
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 168, 255, 0.03) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.section-glow-left {
    left: -100px;
    top: 50%;
    transform: translateY(-50%);
}

.section-glow-right {
    right: -100px;
    top: 50%;
    transform: translateY(-50%);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(10, 15, 28, 0.9);
    backdrop-filter: blur(20px);
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.logo {
    font-size: 24px;
    font-weight: 800;
    color: var(--white);
    letter-spacing: 1px;
}

.logo span {
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav-menu {
    display: flex;
    gap: 40px;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    padding: 8px 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: width 0.3s ease;
}

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

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

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-particles {
    position: absolute;
    width: 100%;
    height: 100%;
}

.hero-particles .particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0.5;
    animation: float 20s infinite ease-in-out;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
        opacity: 0.3;
    }
    25% {
        transform: translateY(-100px) translateX(50px);
        opacity: 0.6;
    }
    50% {
        transform: translateY(-200px) translateX(-30px);
        opacity: 0.4;
    }
    75% {
        transform: translateY(-100px) translateX(-50px);
        opacity: 0.5;
    }
}

.hero-gradient {
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at 30% 20%, rgba(0, 168, 255, 0.15) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 80%, rgba(59, 130, 246, 0.1) 0%, transparent 50%);
}

.hero-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 168, 255, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pulseGlow 8s ease-in-out infinite;
    pointer-events: none;
}

.hero-glow-2 {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    top: 30%;
    right: 10%;
    animation: pulseGlow 6s ease-in-out infinite reverse;
    pointer-events: none;
}

@keyframes pulseGlow {
    0%, 100% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

.hero-grid {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 80px 80px;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(0, 168, 255, 0.1);
    border: 1px solid rgba(0, 168, 255, 0.2);
    border-radius: 30px;
    font-size: 13px;
    font-weight: 500;
    color: var(--primary);
    margin-bottom: 30px;
    letter-spacing: 1px;
}

.hero-title {
    margin-bottom: 30px;
}

.hero-title-line {
    display: block;
    font-size: clamp(48px, 10vw, 80px);
    font-weight: 800;
    letter-spacing: 8px;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 15px;
    text-shadow: 0 0 80px rgba(0, 168, 255, 0.3);
}

.hero-title-accent {
    display: block;
    font-size: clamp(20px, 3vw, 28px);
    font-weight: 400;
    color: var(--gray-light);
    letter-spacing: 4px;
    opacity: 0.9;
}

.hero-description {
    font-size: 18px;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto 50px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 80px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: 0 4px 20px rgba(0, 168, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 168, 255, 0.4);
}

.btn-primary i {
    transition: transform 0.3s ease;
}

.btn-primary:hover i {
    transform: translateX(5px);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.3);
}

.hero-stats {
    display: flex;
    gap: 60px;
    justify-content: center;
}

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

.stat-number {
    display: block;
    font-size: 42px;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.hero-scroll span {
    font-size: 12px;
    color: var(--gray);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.scroll-dot {
    width: 4px;
    height: 8px;
    background: var(--primary);
    border-radius: 2px;
    animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
    0% {
        transform: translateY(0);
        opacity: 1;
    }
    100% {
        transform: translateY(15px);
        opacity: 0;
    }
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 15px;
}

.section-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* About */
.about {
    background: var(--dark-2);
}

.about-intro {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 40px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 50px;
    margin-bottom: 50px;
}

.about-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.about-logo img {
    width: 120px;
    height: 120px;
    object-fit: contain;
    background: rgba(0, 168, 255, 0.1);
    border-radius: 20px;
    transition: var(--transition);
}

.about-logo img:hover {
    box-shadow: 0 0 40px rgba(0, 168, 255, 0.4),
                inset 0 0 30px rgba(0, 168, 255, 0.2);
    transform: scale(1.05);
}

.about-logo .logo-text {
    font-size: 24px;
    font-weight: 800;
    color: var(--white);
    letter-spacing: 2px;
}

.about-logo .logo-text sup {
    font-size: 12px;
    color: var(--primary);
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.about-content p {
    font-size: 16px;
    color: var(--gray-light);
    line-height: 1.9;
}

.about-content p:first-of-type {
    margin-top: 5px;
}

.about-highlights {
    display: flex;
    gap: 30px;
    margin-top: 10px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--gray);
    padding: 8px 15px;
    background: rgba(0, 168, 255, 0.05);
    border-radius: 20px;
    border: 1px solid rgba(0, 168, 255, 0.1);
    transition: var(--transition);
}

.highlight-item:hover {
    background: rgba(0, 168, 255, 0.1);
    border-color: rgba(0, 168, 255, 0.3);
    transform: translateY(-2px);
}

.highlight-item i {
    color: var(--primary);
    font-size: 16px;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.about-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 40px;
    transition: var(--transition);
}

.about-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(0, 168, 255, 0.3);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 168, 255, 0.15);
}

.about-card-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.about-card-icon i {
    font-size: 24px;
    color: var(--white);
}

.about-card h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 15px;
}

.about-card p {
    font-size: 15px;
    color: var(--gray);
    line-height: 1.8;
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.service-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 40px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(0, 168, 255, 0.3);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 168, 255, 0.15);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.service-icon i {
    font-size: 24px;
    color: var(--white);
}

.service-content h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 15px;
}

.service-content p {
    font-size: 15px;
    color: var(--gray);
    line-height: 1.8;
}

.service-number {
    position: absolute;
    top: 30px;
    right: 30px;
    font-size: 48px;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.03);
    line-height: 1;
}

/* Research */
.research {
    background: var(--dark-2);
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.research-category {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 35px;
    transition: var(--transition);
}

.research-category:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(0, 168, 255, 0.3);
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 168, 255, 0.12);
}

.research-category h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.research-category h4 i {
    color: var(--primary);
    font-size: 20px;
}

.research-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    padding: 8px 16px;
    background: rgba(0, 168, 255, 0.08);
    border: 1px solid rgba(0, 168, 255, 0.15);
    border-radius: 20px;
    font-size: 13px;
    color: var(--gray-light);
    transition: var(--transition);
}

.tag:hover {
    background: var(--gradient);
    border-color: transparent;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 168, 255, 0.4);
}

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 20px;
    color: var(--white);
}

.contact-text h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 5px;
}

.contact-text p {
    font-size: 15px;
    color: var(--gray);
}

.contact-links h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 25px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
}

.social-link {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--gradient);
    border-color: transparent;
    transform: translateY(-3px);
}

.social-link i {
    font-size: 20px;
    color: var(--white);
}

.certifications {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.cert-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--gray);
}

.cert-item i {
    color: var(--primary);
    font-size: 16px;
    width: 20px;
    text-align: center;
}

/* Footer */
.footer {
    background: linear-gradient(180deg, var(--dark-2) 0%, var(--dark) 100%);
    padding: 60px 0 0;
    border-top: 1px solid rgba(0, 168, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.footer::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: radial-gradient(ellipse at 50% 100%, rgba(0, 168, 255, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient);
    box-shadow: 0 0 30px var(--primary);
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 50px;
    padding-bottom: 40px;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 28px;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 15px;
}

.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.footer-social .social-link {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.footer-social .social-link:hover {
    background: var(--gradient);
    border-color: transparent;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 168, 255, 0.3);
}

.footer-social .social-link i {
    font-size: 18px;
    color: var(--white);
}

.footer-logo span {
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.footer-desc {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.9;
    margin-top: 15px;
}

.footer-about {
    font-size: 13px;
    color: var(--gray-light);
    line-height: 1.8;
    padding-top: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 15px;
}

.footer-links-group {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.footer-links-group h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 8px;
    position: relative;
    display: inline-block;
}

.footer-links-group h4::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--gradient);
    border-radius: 1px;
}

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

.footer-links-group a {
    font-size: 14px;
    color: var(--gray);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 0;
}

.footer-links-group a:hover {
    color: var(--primary);
    transform: translateX(5px);
}

.footer-links-group a i {
    color: var(--primary);
    font-size: 10px;
    opacity: 0.7;
    transition: var(--transition);
}

.footer-links-group a:hover i {
    opacity: 1;
    transform: translateX(3px);
}

.footer-bottom {
    padding: 30px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--gray);
    margin-bottom: 10px;
}

.footer-bottom .disclaimer {
    font-size: 11px;
    color: var(--gray);
    opacity: 0.7;
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient);
    border: none;
    border-radius: 50%;
    color: var(--white);
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
    box-shadow: 0 4px 20px rgba(0, 168, 255, 0.3);
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 168, 255, 0.4);
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Large Desktop - 1440px+ */
@media (min-width: 1440px) {
    html {
        font-size: 17px;
    }
    
    .container {
        max-width: 1400px;
    }
    
    .hero-title-line {
        font-size: 90px;
    }
    
    .hero-title-accent {
        font-size: 30px;
    }
    
    .hero-description {
        font-size: 20px;
        max-width: 700px;
    }
    
    .hero-stats {
        gap: 80px;
    }
    
    .stat-number {
        font-size: 48px;
    }
    
    .about-intro {
        grid-template-columns: 220px 1fr;
        padding: 60px;
    }
    
    .about-logo img {
        width: 140px;
        height: 140px;
    }
    
    .about-grid {
        gap: 35px;
    }
    
    .about-card {
        padding: 45px;
    }
    
    .services-grid {
        gap: 35px;
    }
    
    .service-card {
        padding: 45px;
    }
    
    .research-grid {
        gap: 35px;
    }
    
    .research-category {
        padding: 40px;
    }
    
    .footer-main {
        gap: 50px;
    }
}

/* Extra Large Desktop - 1920px+ */
@media (min-width: 1920px) {
    html {
        font-size: 18px;
    }
    
    .container {
        max-width: 1600px;
    }
    
    .hero {
        padding: 150px 0 100px;
    }
    
    .hero-title-line {
        font-size: 100px;
        letter-spacing: 12px;
    }
    
    .hero-title-accent {
        font-size: 32px;
        letter-spacing: 6px;
    }
    
    .hero-stats {
        gap: 100px;
    }
    
    .stat-number {
        font-size: 56px;
    }
    
    .stat-label {
        font-size: 16px;
    }
    
    .section {
        padding: 150px 0;
    }
    
    .about-intro {
        padding: 70px;
        border-radius: 24px;
    }
    
    .about-card {
        padding: 50px;
        border-radius: 20px;
    }
    
    .service-card {
        padding: 50px;
        border-radius: 20px;
    }
    
    .research-category {
        padding: 45px;
        border-radius: 20px;
    }
    
    .footer {
        padding: 60px 0 0;
    }
}

/* Responsive */
@media (max-width: 1024px) {
    .about-intro {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 40px 30px;
    }
    
    .about-logo {
        flex-direction: row;
        justify-content: center;
        gap: 20px;
    }
    
    .about-logo img {
        width: 100px;
        height: 100px;
    }
    
    .about-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-highlights {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .research-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-main {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .mobile-toggle {
        display: flex;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    body {
        overflow-x: hidden;
    }
    
    .container {
        width: 95%;
        padding: 0 15px;
    }
    
    .section {
        padding: 70px 0;
    }
    
    .header {
        padding: 12px 0;
        background: rgba(10, 15, 28, 0.95);
    }

    .particle {
        width: 3px;
        height: 3px;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(10, 15, 28, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 25px;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
        z-index: 1000;
    }
    
    .nav-menu.active {
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        font-size: 20px;
        padding: 12px 25px;
        width: 100%;
        text-align: center;
    }
    
    .hero {
        padding: 90px 0 50px;
        min-height: auto;
    }
    
    .hero-content {
        padding: 0 5px;
    }
    
    .hero-title {
        margin-bottom: 25px;
    }
    
    .hero-title-line {
        letter-spacing: 3px;
        font-size: clamp(32px, 8vw, 48px) !important;
    }
    
    .hero-title-accent {
        font-size: clamp(14px, 3.5vw, 18px) !important;
        letter-spacing: 2px;
    }
    
    .hero-description {
        font-size: 14px;
        margin-bottom: 30px;
        padding: 0 10px;
        line-height: 1.7;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }
    
    .stat-item {
        display: flex;
        align-items: center;
        gap: 12px;
        text-align: left;
    }
    
    .stat-number {
        font-size: 30px;
    }
    
    .stat-label {
        font-size: 12px;
        letter-spacing: 1px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: 12px;
        margin-bottom: 40px;
        width: 100%;
        padding: 0 20px;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
        padding: 14px 24px;
        font-size: 14px;
    }
    
    .hero-scroll {
        display: none;
    }
    
    .section-header {
        margin-bottom: 35px;
        padding: 0 10px;
    }
    
    .section-title {
        font-size: 26px;
        margin-bottom: 15px;
    }
    
    .section-subtitle {
        font-size: 14px;
        line-height: 1.6;
    }
    
    .about-intro {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 25px 20px;
        gap: 20px;
        border-radius: 16px;
    }
    
    .about-logo {
        flex-direction: column;
        gap: 15px;
    }
    
    .about-logo img {
        width: 85px;
        height: 85px;
    }
    
    .about-logo .logo-text {
        font-size: 22px;
    }
    
    .about-content {
        gap: 15px;
    }
    
    .about-content p {
        font-size: 14px;
        line-height: 1.8;
        text-align: left;
    }
    
    .about-highlights {
        flex-direction: column;
        align-items: center;
        gap: 12px;
        padding-top: 15px;
    }
    
    .highlight-item {
        font-size: 13px;
    }
    
    .highlight-item i {
        font-size: 14px;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }
    
    .about-card {
        padding: 25px 20px;
        border-radius: 14px;
    }
    
    .about-card-icon {
        width: 48px;
        height: 48px;
        margin-bottom: 18px;
    }
    
    .about-card-icon i {
        font-size: 22px;
    }
    
    .about-card h3 {
        font-size: 18px;
        margin-bottom: 12px;
    }
    
    .about-card p {
        font-size: 13px;
        line-height: 1.7;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }
    
    .service-card {
        padding: 25px 20px;
        border-radius: 14px;
    }
    
    .service-icon {
        width: 48px;
        height: 48px;
        margin-bottom: 18px;
    }
    
    .service-icon i {
        font-size: 22px;
    }
    
    .service-content h3 {
        font-size: 18px;
        margin-bottom: 10px;
    }
    
    .service-content p {
        font-size: 13px;
        line-height: 1.7;
    }
    
    .service-number {
        font-size: 32px;
        top: 18px;
        right: 18px;
    }
    
    .research-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }
    
    .research-category {
        padding: 22px 18px;
        border-radius: 14px;
    }
    
    .research-category h4 {
        font-size: 16px;
        margin-bottom: 18px;
    }
    
    .research-tags {
        gap: 8px;
    }
    
    .tag {
        padding: 6px 12px;
        font-size: 12px;
    }
    
    .footer {
        padding-top: 30px;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
        gap: 25px;
        text-align: center;
    }
    
    .footer-brand {
        align-items: center;
    }
    
    .footer-logo {
        justify-content: center;
        font-size: 24px;
    }
    
    .footer-desc {
        font-size: 13px;
        line-height: 1.7;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-social .social-link {
        width: 40px;
        height: 40px;
    }
    
    .footer-social .social-link i {
        font-size: 16px;
    }
    
    .footer-links-group {
        align-items: center;
        gap: 12px;
    }
    
    .footer-links-group h4 {
        font-size: 15px;
        margin-bottom: 8px;
    }
    
    .footer-links-group ul {
        align-items: center;
        gap: 8px;
    }
    
    .footer-links-group a {
        font-size: 13px;
    }
    
    .certifications {
        align-items: center;
        gap: 10px;
    }
    
    .cert-item {
        font-size: 12px;
    }
    
    .cert-item i {
        width: 16px;
        font-size: 14px;
    }
    
    .footer-bottom {
        padding: 18px 15px;
    }
    
    .footer-bottom p {
        font-size: 12px;
    }
    
    .footer-bottom .disclaimer {
        font-size: 10px;
        line-height: 1.5;
    }
    
    .back-to-top {
        bottom: 18px;
        right: 18px;
        width: 44px;
        height: 44px;
        font-size: 16px;
    }

    a, button {
        -webkit-tap-highlight-color: transparent;
    }
    
    img {
        max-width: 100%;
        height: auto;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 13px;
    }
    
    .container {
        width: 100%;
        padding: 0 12px;
    }
    
    .section {
        padding: 50px 0;
    }
    
    .header {
        padding: 10px 0;
    }
    
    .logo {
        font-size: 16px;
    }
    
    .mobile-toggle {
        gap: 5px;
    }
    
    .mobile-toggle span {
        width: 20px;
        height: 2px;
    }
    
    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .nav-link {
        font-size: 18px;
        padding: 10px 20px;
    }
    
    .nav-menu {
        gap: 20px;
    }
    
    .hero {
        padding: 70px 0 40px;
    }
    
    .hero-title {
        margin-bottom: 20px;
    }
    
    .hero-title-line {
        letter-spacing: 2px;
        font-size: 26px !important;
    }
    
    .hero-title-accent {
        letter-spacing: 1px;
        font-size: 12px !important;
    }
    
    .hero-description {
        font-size: 13px;
        line-height: 1.6;
        margin-bottom: 25px;
    }
    
    .hero-stats {
        gap: 15px;
    }
    
    .stat-number {
        font-size: 26px;
    }
    
    .stat-label {
        font-size: 11px;
    }
    
    .hero-actions {
        padding: 0 15px;
        gap: 10px;
        margin-bottom: 35px;
    }
    
    .btn {
        max-width: 250px;
        padding: 12px 20px;
        font-size: 13px;
    }
    
    .section-header {
        margin-bottom: 30px;
    }
    
    .section-title {
        font-size: 22px;
    }
    
    .section-subtitle {
        font-size: 13px;
    }
    
    .about-intro {
        padding: 20px 15px;
        border-radius: 14px;
        gap: 18px;
    }
    
    .about-logo img {
        width: 75px;
        height: 75px;
        border-radius: 16px;
    }
    
    .about-logo .logo-text {
        font-size: 20px;
    }
    
    .about-content p {
        font-size: 13px;
        line-height: 1.75;
    }
    
    .about-highlights {
        gap: 10px;
    }
    
    .highlight-item {
        font-size: 11px;
    }
    
    .highlight-item i {
        font-size: 13px;
    }
    
    .about-grid {
        gap: 15px;
    }
    
    .about-card {
        padding: 20px 15px;
        border-radius: 12px;
    }
    
    .about-card-icon {
        width: 44px;
        height: 44px;
        margin-bottom: 15px;
    }
    
    .about-card-icon i {
        font-size: 20px;
    }
    
    .about-card h3 {
        font-size: 16px;
    }
    
    .about-card p {
        font-size: 12px;
    }
    
    .services-grid {
        gap: 15px;
    }
    
    .service-card {
        padding: 20px 15px;
        border-radius: 12px;
    }
    
    .service-icon {
        width: 44px;
        height: 44px;
        margin-bottom: 15px;
    }
    
    .service-icon i {
        font-size: 20px;
    }
    
    .service-content h3 {
        font-size: 16px;
    }
    
    .service-content p {
        font-size: 12px;
    }
    
    .service-number {
        font-size: 28px;
        top: 15px;
        right: 15px;
    }
    
    .research-grid {
        gap: 15px;
    }
    
    .research-category {
        padding: 18px 14px;
        border-radius: 12px;
    }
    
    .research-category h4 {
        font-size: 14px;
        margin-bottom: 15px;
    }
    
    .research-tags {
        gap: 6px;
    }
    
    .tag {
        padding: 5px 10px;
        font-size: 11px;
    }
    
    .footer {
        padding-top: 25px;
    }
    
    .footer-main {
        gap: 20px;
    }
    
    .footer-logo {
        font-size: 20px;
    }
    
    .footer-desc {
        font-size: 12px;
    }
    
    .footer-social .social-link {
        width: 38px;
        height: 38px;
    }
    
    .footer-social .social-link i {
        font-size: 15px;
    }
    
    .footer-links-group h4 {
        font-size: 14px;
    }
    
    .footer-links-group a {
        font-size: 12px;
    }
    
    .cert-item {
        font-size: 11px;
    }
    
    .footer-bottom {
        padding: 15px 10px;
    }
    
    .footer-bottom p {
        font-size: 11px;
    }
    
    .footer-bottom .disclaimer {
        font-size: 9px;
    }
    
    .back-to-top {
        bottom: 12px;
        right: 12px;
        width: 40px;
        height: 40px;
        font-size: 15px;
    }

    .particle {
        width: 2px;
        height: 2px;
    }

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

@media (max-width: 375px) {
    html {
        font-size: 12px;
    }
    
    .container {
        padding: 0 10px;
    }
    
    .section {
        padding: 40px 0;
    }
    
    .logo {
        font-size: 15px;
    }
    
    .hero-title-line {
        font-size: 24px !important;
    }
    
    .hero-title-accent {
        font-size: 11px !important;
    }
    
    .hero-description {
        font-size: 12px;
    }
    
    .stat-number {
        font-size: 24px;
    }
    
    .stat-label {
        font-size: 10px;
        letter-spacing: 0;
    }
    
    .btn {
        padding: 11px 16px;
        font-size: 12px;
        max-width: 220px;
    }
    
    .section-title {
        font-size: 20px;
    }
    
    .about-intro {
        padding: 18px 12px;
    }
    
    .about-logo img {
        width: 65px;
        height: 65px;
    }
    
    .about-card {
        padding: 18px 12px;
    }
    
    .about-card-icon {
        width: 40px;
        height: 40px;
    }
    
    .about-card h3 {
        font-size: 15px;
    }
    
    .service-card {
        padding: 18px 12px;
    }
    
    .service-icon {
        width: 40px;
        height: 40px;
    }
    
    .service-content h3 {
        font-size: 15px;
    }
    
    .research-category {
        padding: 15px 12px;
    }
    
    .tag {
        padding: 4px 8px;
        font-size: 10px;
    }
    
    .footer-logo {
        font-size: 18px;
    }
    
    .footer-desc {
        font-size: 11px;
    }
    
    .footer-links-group a {
        font-size: 11px;
    }
}

@media (max-width: 320px) {
    html {
        font-size: 11px;
    }
    
    .hero {
        padding: 60px 0 30px;
    }
    
    .hero-title-line {
        font-size: 22px !important;
        letter-spacing: 1px;
    }
    
    .hero-title-accent {
        font-size: 10px !important;
    }
    
    .btn {
        padding: 10px 14px;
        font-size: 11px;
    }
    
    .about-logo img {
        width: 60px;
        height: 60px;
    }
    
    .about-card,
    .service-card,
    .research-category {
        padding: 15px 10px;
    }
    
    .tag {
        padding: 4px 7px;
        font-size: 9px;
    }
}

@font-face {
  font-family: 'Pacifico-Regular';
  src: url("./image/Pacifico-Regular.ttf");
}
.hero-title-line {
  font-family: 'Pacifico-Regular';
}

/* ===== Career Detail Pages ===== */
.career-detail-page {
  padding: 140px 0 60px;
  min-height: 60vh;
}

.job-banner {
  text-align: center;
  padding: 50px 30px;
  margin-bottom: 40px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  position: relative;
  overflow: hidden;
}

.job-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient);
}

.job-banner-icon {
  width: 72px;
  height: 72px;
  background: var(--gradient);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.job-banner-icon i {
  font-size: 32px;
  color: var(--white);
}

.job-banner h1 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
}

.job-meta {
  display: flex;
  gap: 30px;
  justify-content: center;
  flex-wrap: wrap;
}

.job-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  color: var(--gray-light);
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 8px;
}

.job-meta-item i {
  color: var(--primary);
  font-size: 14px;
}

.job-body {
  max-width: 860px;
  margin: 0 auto;
}

.job-section {
  margin-bottom: 35px;
  padding: 30px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  transition: var(--transition);
}

.job-section:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(0, 168, 255, 0.2);
}

.job-section h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.job-section h2 i {
  color: var(--primary);
  font-size: 18px;
}

.job-section ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.job-section ul li {
  font-size: 15px;
  color: var(--gray-light);
  line-height: 1.7;
  padding-left: 22px;
  position: relative;
}

.job-section ul li::before {
  content: '\f105';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  left: 0;
  color: var(--primary);
  font-size: 14px;
}

.job-section p {
  font-size: 15px;
  color: var(--gray-light);
  line-height: 1.8;
}

.job-apply-link {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.job-apply-link:hover {
  color: var(--secondary);
}

.job-apply-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  padding: 14px 32px;
  background: var(--gradient);
  color: var(--white);
  font-size: 15px;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(0, 168, 255, 0.3);
  text-decoration: none;
}

.job-apply-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 168, 255, 0.4);
}

.job-apply-btn i {
  font-size: 16px;
}

/* Card link for clickable careers cards */
.card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.card-link:hover {
  color: inherit;
}

/* Responsive: Career detail pages */
@media (max-width: 768px) {
  .career-detail-page {
    padding: 100px 0 40px;
  }

  .job-banner {
    padding: 30px 20px;
  }

  .job-banner-icon {
    width: 60px;
    height: 60px;
  }

  .job-banner-icon i {
    font-size: 26px;
  }

  .job-meta {
    gap: 15px;
  }

  .job-meta-item {
    font-size: 13px;
    padding: 6px 12px;
  }

  .job-section {
    padding: 20px;
  }

  .job-section h2 {
    font-size: 18px;
  }

  .job-section ul li {
    font-size: 14px;
  }

  .job-section p {
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  .job-banner h1 {
    font-size: 22px;
  }

  .job-meta {
    flex-direction: column;
    align-items: center;
  }

  .job-apply-btn {
    width: 100%;
    justify-content: center;
  }
}