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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    font-weight: 400;
    line-height: 1.6;
    color: #1a1a2e;
    background-color: #ffffff;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

/* ========================================
   CSS Custom Properties
   ======================================== */
:root {
    --primary: #0f3460;
    --primary-light: #1a4a7a;
    --primary-dark: #0a2340;
    --accent: #e94560;
    --accent-hover: #d13650;
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a6a;
    --text-muted: #6b6b8a;
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-dark: #0f3460;
    --border: #e8e8ef;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --container-max: 1200px;
    --container-padding: 24px;
}

/* ========================================
   Layout
   ======================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: all var(--transition-normal);
    padding: 16px 0;
}

.navbar.scrolled {
    padding: 12px 0;
    box-shadow: var(--shadow-sm);
    background: rgba(255, 255, 255, 0.98);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary);
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: scale(1.02);
}

.logo img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    display: block;
    padding: 10px 16px;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    position: relative;
    transition: all var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
    border-radius: 2px;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: rgba(15, 52, 96, 0.06);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: calc(100% - 32px);
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-normal);
    border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
    padding: 120px 0 80px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(233, 69, 96, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(15, 52, 96, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(233, 69, 96, 0.1) 0%, transparent 40%);
    opacity: 0.8;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.4;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.gradient-text {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    color: #ffffff;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    font-weight: 400;
    color: rgba(255, 255, 255, 0.8);
    letter-spacing: 0.02em;
}

.hero-description {
    font-size: clamp(1rem, 1.5vw, 1.2rem);
    color: rgba(255, 255, 255, 0.7);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.hero-contact {
    margin-top: 20px;
}

.phone-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.1rem;
    font-weight: 500;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: all var(--transition-normal);
}

.phone-link:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    animation: fadeInUp 1s ease 1.5s both;
    opacity: 0.6;
}

.mouse {
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 12px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollWheel 2s ease infinite;
}

.scroll-indicator p {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 2px;
}

@keyframes scrollWheel {
    0% { top: 8px; opacity: 1; }
    100% { top: 24px; opacity: 0; }
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    outline: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--accent);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(233, 69, 96, 0.4);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(233, 69, 96, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-full {
    width: 100%;
}

/* ========================================
   Section Headers
   ======================================== */
.section-header {
    margin-bottom: 60px;
    max-width: 600px;
}

.section-header.centered {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(15, 52, 96, 0.08);
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 100px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 3vw, 2.5rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========================================
   News Section
   ======================================== */
.news-section {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.news-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    border: 1px solid var(--border);
}

.news-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.news-image {
    height: 240px;
    overflow: hidden;
    position: relative;
}

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

.news-card:hover .news-image img {
    transform: scale(1.08);
}

.news-content {
    padding: 28px;
}

.news-meta {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
    align-items: center;
}

.news-date {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.news-category {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 4px 12px;
    background: rgba(233, 69, 96, 0.1);
    color: var(--accent);
    border-radius: 100px;
}

.news-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-excerpt {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.news-link:hover {
    color: var(--accent);
    gap: 12px;
}

.news-link svg {
    transition: transform var(--transition-fast);
}

.news-link:hover svg {
    transform: translateX(4px);
}

/* ========================================
   Products Section
   ======================================== */
.products-section {
    padding: 100px 0;
    background: var(--bg-primary);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.product-card {
    padding: 40px 32px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

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

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

.product-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-md);
    color: #ffffff;
    margin-bottom: 24px;
}

.product-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.product-description {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.product-link {
    display: inline-block;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.product-link:hover {
    color: var(--accent);
}

/* ========================================
   About Section
   ======================================== */
.about-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, #ffffff 100%);
}

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

.about-content .section-tag {
    margin-bottom: 16px;
}

.about-content .section-title {
    margin-bottom: 24px;
}

.about-text {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.about-image {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image::after {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--accent), var(--primary));
    border-radius: var(--radius-lg);
    opacity: 0.2;
    z-index: -1;
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-xl);
}


/* ========================================
   Careers Section
   ======================================== */
.careers-section {
    padding: 100px 0;
    background: var(--bg-primary);
    text-align: center;
}

.careers-cta {
    margin-top: 40px;
}

/* ========================================
   Contributions Section
   ======================================== */
.contributions-section {
    padding: 100px 0;
    background: var(--bg-primary);
}

.contribution-category {
    margin-bottom: 64px;
}

.contribution-category:last-of-type {
    margin-bottom: 0;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--border);
}

.category-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-md);
    color: #ffffff;
    flex-shrink: 0;
}

.category-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.contribution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 24px;
}

.contribution-card {
    padding: 32px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.contribution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

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

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

.contribution-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(233, 69, 96, 0.1);
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: 100px;
    margin-bottom: 12px;
}

.contribution-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.4;
}

.contribution-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.contribution-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.85rem;
    transition: all var(--transition-fast);
}

.contribution-link:hover {
    color: var(--accent);
    gap: 8px;
}

.contribution-note {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    padding: 20px 24px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary);
}

.contribution-note strong {
    color: var(--text-primary);
    font-weight: 600;
}

.contributions-cta {
    text-align: center;
    margin-top: 48px;
}

/* ========================================
   Solutions Section (PRISTINE)
   ======================================== */
.solutions-section {
    padding: 100px 0;
    background: var(--bg-primary);
}

.solutions-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    max-width: 900px;
    margin: 0 auto;
}

.solution-card {
    padding: 48px;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.solution-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.solution-badge {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #ffffff;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 100px;
    margin-bottom: 24px;
}

.solution-title {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    letter-spacing: 2px;
}

.solution-subtitle {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--accent);
    margin-bottom: 24px;
}

.solution-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 40px;
}

.solution-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.feature {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.feature-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
    opacity: 0.5;
    flex-shrink: 0;
    width: 40px;
}

.feature-content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.feature-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.solution-guardrails {
    padding: 24px 28px;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent);
    margin-bottom: 24px;
}

.solution-guardrails h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.solution-guardrails ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.solution-guardrails li {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.solution-guardrails li strong {
    color: var(--text-primary);
}

.solution-patents {
    padding: 16px 20px;
    background: rgba(15, 52, 96, 0.05);
    border-radius: var(--radius-sm);
    text-align: center;
}

.solution-patents p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.solution-patents strong {
    color: var(--primary);
    font-weight: 600;
}

@media (max-width: 768px) {
    .solution-card {
        padding: 32px 24px;
    }

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

/* ========================================
   Blogs Section
   ======================================== */
.blogs-section {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.blogs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.blog-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 32px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.blog-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary), var(--accent));
    transform: scaleY(0);
    transform-origin: top;
    transition: transform var(--transition-normal);
}

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

.blog-card:hover::before {
    transform: scaleY(1);
}

.blog-meta {
    margin-bottom: 12px;
}

.blog-date {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.blog-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.4;
}

.blog-title a {
    color: inherit;
    transition: color var(--transition-fast);
}

.blog-title a:hover {
    color: var(--accent);
}

.blog-excerpt {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.blog-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.blog-link:hover {
    color: var(--accent);
    gap: 12px;
}

.blog-link svg {
    transition: transform var(--transition-fast);
}

.blog-link:hover svg {
    transform: translateX(4px);
}

.blogs-cta {
    text-align: center;
    margin-top: 48px;
}

/* ========================================
   Linux Contributions Page
   ======================================== */
.page-header {
    min-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
    padding: 140px 0 80px;
}

.page-header-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(233, 69, 96, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(15, 52, 96, 0.3) 0%, transparent 50%);
    opacity: 0.8;
}

.page-header-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.page-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 16px;
    line-height: 1.1;
}

.page-subtitle {
    font-size: clamp(1rem, 1.5vw, 1.2rem);
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.linux-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.conference-year {
    margin-bottom: 48px;
}

.conference-year:last-of-type {
    margin-bottom: 0;
}

.year-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--border);
}

.year-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #ffffff;
    font-weight: 700;
    font-size: 1.1rem;
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.year-info h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.year-location {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.sessions-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.session-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 20px 24px;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    transition: all var(--transition-normal);
}

.session-item:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-sm);
    border-color: var(--primary);
}

.session-type {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 4px 12px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: 100px;
    flex-shrink: 0;
    margin-top: 2px;
}

.tag-talk {
    background: rgba(15, 52, 96, 0.1);
    color: var(--primary);
}

.tag-workshop {
    background: rgba(233, 69, 96, 0.1);
    color: var(--accent);
}

.tag-bof {
    background: rgba(34, 197, 94, 0.1);
    color: #16a34a;
}

.session-details h4 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
    line-height: 1.4;
}

.session-details h4 a {
    color: inherit;
    transition: color var(--transition-fast);
}

.session-details h4 a:hover {
    color: var(--accent);
}

.session-speakers {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

.linux-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 60px;
    padding-top: 48px;
    border-top: 1px solid var(--border);
}

/* ========================================
   IETF Contributions Page
   ======================================== */
.ietf-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.rfc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 24px;
}

.rfc-card {
    padding: 32px;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.rfc-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

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

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

.rfc-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.rfc-number {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
}

.rfc-date {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.rfc-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.4;
}

.rfc-title a {
    color: inherit;
    transition: color var(--transition-fast);
}

.rfc-title a:hover {
    color: var(--accent);
}

.rfc-abstract {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.rfc-meta {
    display: flex;
    gap: 8px;
}

.rfc-citations,
.rfc-status {
    font-size: 0.85rem;
    font-weight: 500;
    padding: 4px 12px;
    border-radius: 100px;
}

.rfc-citations {
    background: rgba(15, 52, 96, 0.08);
    color: var(--primary);
}

.rfc-status {
    background: rgba(233, 69, 96, 0.08);
    color: var(--accent);
}

.drafts-list {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 32px;
    border: 1px solid var(--border);
}

.drafts-intro {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.drafts-intro a {
    color: var(--primary);
    font-weight: 600;
}

.drafts-intro a:hover {
    color: var(--accent);
}

.drafts-ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.drafts-ul li {
    font-size: 0.95rem;
    color: var(--text-secondary);
    padding: 12px 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--primary);
}

.drafts-ul li strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* ========================================
   Responsive for IETF page
   ======================================== */
@media (max-width: 768px) {
    .rfc-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Animations
   ======================================== */
.contact-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, #ffffff 50%, var(--bg-secondary) 100%);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
}

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

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-md);
    color: #ffffff;
    flex-shrink: 0;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.contact-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-value {
    font-size: 1.05rem;
    color: var(--text-primary);
    font-weight: 500;
    line-height: 1.6;
}

.contact-value:hover {
    color: var(--accent);
}

/* Contact Form */
.contact-form {
    background: var(--bg-primary);
    padding: 40px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

.form-group {
    position: relative;
    margin-bottom: 24px;
}

.form-input {
    width: 100%;
    padding: 16px;
    font-size: 1rem;
    font-family: inherit;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: all var(--transition-normal);
    outline: none;
}

.form-input:focus {
    border-color: var(--primary);
    background: var(--bg-primary);
    box-shadow: 0 0 0 4px rgba(15, 52, 96, 0.1);
}

.form-textarea {
    min-height: 140px;
    resize: vertical;
}

.form-label {
    position: absolute;
    left: 16px;
    top: 16px;
    font-size: 1rem;
    color: var(--text-muted);
    pointer-events: none;
    transition: all var(--transition-normal);
    background: transparent;
    padding: 0 4px;
}

.form-input:focus + .form-label,
.form-input:not(:placeholder-shown) + .form-label {
    top: -10px;
    left: 12px;
    font-size: 0.8rem;
    color: var(--primary);
    background: var(--bg-primary);
    font-weight: 600;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 60px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
}

.footer-tagline {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer-links {
    display: flex;
    gap: 40px;
}

.footer-column h4 {
    color: #ffffff;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
}

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

.footer-column a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    display: inline-block;
}

.footer-column a:hover {
    color: #ffffff;
    transform: translateX(4px);
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.4);
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Scroll Animation Classes */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: all 0.8s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: all 0.8s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-image {
        order: -1;
        max-width: 500px;
        margin: 0 auto;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-brand {
        max-width: 100%;
    }

    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 20px;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--bg-primary);
        flex-direction: column;
        padding: 80px 30px 30px;
        gap: 0;
        transition: right var(--transition-normal);
        box-shadow: -5px 0 30px rgba(0, 0, 0, 0.1);
        z-index: 999;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-link {
        padding: 16px;
        border-bottom: 1px solid var(--border);
        width: 100%;
    }

    .nav-link::after {
        display: none;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

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

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

    .contact-grid {
        gap: 40px;
    }

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

    .session-item {
        flex-direction: column;
        gap: 12px;
    }

    .year-header {
        flex-wrap: wrap;
    }

    .category-header {
        margin-bottom: 24px;
    }

    .contact-form {
        padding: 28px;
    }

    .footer-links {
        flex-direction: column;
        gap: 30px;
    }

    .scroll-indicator {
        display: none;
    }
}

@media (max-width: 480px) {
    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }

    .contact-form {
        padding: 24px 20px;
    }

    .product-card {
        padding: 30px 24px;
    }

    .news-content {
        padding: 24px 20px;
    }
}

/* ========================================
   Utility Classes
   ======================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Selection Color */
::selection {
    background: rgba(233, 69, 96, 0.2);
    color: var(--text-primary);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-light);
}