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

:root {
    --color-red: #EF3E42;
    --color-teal: #1BA6A6;
    --color-dark: #1a1a1a;
    --color-white: #ffffff;
    --color-light-gray: #f5f5f5;
    --color-gray: #666666;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--color-dark);
    background: var(--color-white);
    line-height: 1.6;
}

/* Navigation */
nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-white);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    padding: 1rem 2rem;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-atea {
    color: var(--color-dark);
}

.logo-labs {
    color: var(--color-red);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    flex: 1;
    justify-content: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--color-dark);
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    transition: var(--transition);
    padding-bottom: 4px;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-red);
    transition: width 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.nav-links a.active {
    color: var(--color-red);
}

.nav-right {
    display: flex;
    gap: 1rem;
    align-items: center;
}

/* Language Dropdown */
.lang-dropdown {
    position: relative;
}

.lang-dropdown-btn {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.42rem 0.75rem;
    background: var(--color-white);
    border: 1.5px solid rgba(0,0,0,0.12);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-dark);
    transition: var(--transition);
    font-family: var(--font-sans);
    white-space: nowrap;
    line-height: 1;
}

.lang-dropdown-btn:hover {
    border-color: var(--color-dark);
    background: var(--color-light-gray);
}

.lang-dropdown-btn .ld-globe {
    color: var(--color-gray);
    flex-shrink: 0;
}

.lang-dropdown-btn .ld-chevron {
    color: var(--color-gray);
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.lang-dropdown.open .lang-dropdown-btn .ld-chevron {
    transform: rotate(180deg);
}

.lang-menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    background: var(--color-white);
    border: 1.5px solid rgba(0,0,0,0.1);
    border-radius: 8px;
    box-shadow: 0 8px 28px rgba(0,0,0,0.13);
    min-width: 190px;
    z-index: 300;
    overflow: hidden;
    opacity: 0;
    transform: translateY(-8px) scale(0.97);
    pointer-events: none;
    transition: opacity 0.18s ease, transform 0.18s ease;
}

.lang-dropdown.open .lang-menu {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: all;
}

.lang-opt {
    padding: 0.58rem 1rem;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--color-dark);
    cursor: pointer;
    transition: background 0.12s ease;
    display: flex;
    align-items: center;
}

.lang-opt:hover {
    background: var(--color-light-gray);
}

.lang-opt.active {
    background: #2563eb;
    color: #fff;
    font-weight: 700;
}

[dir="rtl"] .lang-menu {
    right: auto;
    left: 0;
}

[dir="rtl"] .nav-links {
    direction: rtl;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 105;
}

.hamburger-bar {
    width: 100%;
    height: 2px;
    background-color: var(--color-dark);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transform-origin: left center;
}

.mobile-only {
    display: none !important;
}

[dir="rtl"] .hero {
    direction: rtl;
}

[dir="rtl"] .timeline-item:nth-child(odd) .timeline-content {
    margin-left: 52%;
    margin-right: 0;
    text-align: right;
}

[dir="rtl"] .timeline-item:nth-child(even) .timeline-content {
    margin-left: 0;
    margin-right: 52%;
    text-align: left;
}

.btn {
    padding: 0.7rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    background: var(--color-red);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(239, 62, 66, 0.2);
}

.btn-secondary {
    background: transparent;
    color: var(--color-dark);
    border: 1px solid var(--color-dark);
}

.btn-secondary:hover {
    background: var(--color-dark);
    color: var(--color-white);
    transform: translateY(-2px);
}

/* Page Container */
.page-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-container {
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    font-weight: 700;
}

.section {
    padding: 5rem 2rem;
}

.section.alt {
    background: var(--color-light-gray);
}

/* Hero Section */
.hero {
    padding: 4rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    min-height: 600px;
}

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.hero-content h1 .highlight {
    color: var(--color-red);
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--color-gray);
    margin-bottom: 2rem;
    line-height: 1.8;
}

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

.hero-visual {
    position: relative;
    height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
    perspective: 1000px;
}

/* Isometric 3D Box */
.isometric-box {
    width: 200px;
    height: 200px;
    position: relative;
    transform-style: preserve-3d;
    animation: float 3s ease-in-out infinite;
}

.box-face {
    position: absolute;
    width: 200px;
    height: 200px;
    border: 2px solid var(--color-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
}

.box-top {
    background: rgba(27, 166, 166, 0.1);
    transform: rotateX(60deg) translateZ(100px);
    border-color: var(--color-teal);
}

.box-front {
    background: rgba(239, 62, 66, 0.05);
    transform: translateZ(100px);
    border-color: var(--color-red);
}

.box-right {
    background: rgba(26, 26, 26, 0.05);
    transform: rotateY(90deg) translateZ(100px);
    border-color: var(--color-dark);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotateX(20deg) rotateY(-20deg) rotateZ(5deg);
    }
    50% {
        transform: translateY(-30px) rotateX(20deg) rotateY(-20deg) rotateZ(5deg);
    }
}

.status-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--color-white);
    border: 1px solid var(--color-gray);
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    animation: slideInRight 0.6s ease-out 0.3s both;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Cards */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--color-white);
    border-radius: 8px;
    padding: 2rem;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.08);
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-teal), var(--color-red));
    transition: left 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(27, 166, 166, 0.1), transparent);
    opacity: 0;
    transition: opacity 0.3s ease-out;
    pointer-events: none;
    border-radius: 8px;
}

.card:hover::before {
    left: 0;
}

.card:hover::after {
    opacity: 1;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
}

.card-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-teal), var(--color-red));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    animation: rotation 20s linear infinite;
}

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

.card-icon.paused:hover {
    animation-play-state: paused;
}

.card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    font-weight: 600;
}

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

/* Product Cards */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.product-card {
    background: linear-gradient(135deg, rgba(27, 166, 166, 0.08), rgba(239, 62, 66, 0.08));
    border: 1px solid rgba(27, 166, 166, 0.2);
    border-radius: 12px;
    padding: 1.5rem 1.25rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.product-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: rotate(45deg);
    animation: shimmer 3s infinite;
    pointer-events: none;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
    }
    100% {
        transform: translateX(100%) translateY(100%) rotate(45deg);
    }
}

.product-card:hover::before {
    animation: shimmer 1s infinite;
}

.product-card:hover {
    transform: perspective(1000px) rotateX(0) rotateY(0) scale(1.05);
    border-color: var(--color-teal);
    box-shadow: 0 16px 40px rgba(27, 166, 166, 0.15);
}

.product-name {
    font-size: 1.2rem;
    font-weight: 700;
    margin: 1rem 0 0.5rem 0;
    color: var(--color-dark);
}

.product-desc {
    font-size: 0.9rem;
    color: var(--color-gray);
    margin-bottom: 1rem;
}

.product-badge {
    display: inline-block;
    background: var(--color-teal);
    color: var(--color-white);
    padding: 0.4rem 1.2rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: auto;
    min-width: 120px;
    text-align: center;
}

/* Timeline Styles */
.portfolio-filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    padding: 0.6rem 1.2rem;
    border: 2px solid var(--color-gray);
    background: transparent;
    color: var(--color-dark);
    border-radius: 25px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
    white-space: nowrap;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--color-red);
    border-color: var(--color-red);
    color: var(--color-white);
    transform: translateY(-2px);
}

.portfolio-timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-teal), var(--color-red));
    transform: translateX(-50%);
}

.timeline-item {
    margin-bottom: 4rem;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.timeline-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: 0;
    margin-right: 52%;
    text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 52%;
    margin-right: 0;
    text-align: left;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    top: 0;
    width: 16px;
    height: 16px;
    background: var(--color-white);
    border: 3px solid var(--color-red);
    border-radius: 50%;
    transform: translateX(-50%);
    transition: var(--transition);
    z-index: 10;
}

.timeline-item:hover .timeline-dot {
    border-color: var(--color-teal);
    width: 24px;
    height: 24px;
    box-shadow: 0 0 0 8px rgba(27, 166, 166, 0.1);
    transform: translateX(-50%);
}

.timeline-content {
    position: relative;
    background: var(--color-white);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(27, 166, 166, 0.2);
    cursor: pointer;
    transition: var(--transition);
    overflow: hidden;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-teal), var(--color-red));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.timeline-item:hover .timeline-content::before {
    transform: scaleX(1);
}

.timeline-item:hover .timeline-content {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px rgba(27, 166, 166, 0.15);
    border-color: var(--color-teal);
}

.timeline-year {
    font-size: 0.85rem;
    color: var(--color-teal);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.timeline-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 0.8rem;
}

.timeline-description {
    color: var(--color-gray);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.timeline-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.timeline-tag {
    display: inline-block;
    background: rgba(27, 166, 166, 0.1);
    color: var(--color-teal);
    padding: 0.35rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.timeline-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, rgba(27, 166, 166, 0.1), rgba(239, 62, 66, 0.1));
    border-radius: 8px;
    margin-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    overflow: hidden;
    position: relative;
}

.timeline-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1), transparent 70%);
    animation: shimmer 3s infinite;
    pointer-events: none;
}

.timeline-item:hover .timeline-image::before {
    animation: shimmer 1s infinite;
}

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

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

.fadeInStagger {
    animation: fadeInStagger 0.6s ease-out forwards;
}

@keyframes fadeInStagger {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .hero {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-right .btn-primary {
        display: none !important;
    }

    .nav-links {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        min-height: calc(100vh - 70px);
        background: var(--color-white);
        border-bottom: 1px solid rgba(0, 0, 0, 0.08);
        padding: 1.5rem 2rem 2rem;
        gap: 1.2rem;
        align-items: stretch;
        box-shadow: 0 12px 24px rgba(0,0,0,0.06);
        z-index: 99;
        overflow-y: auto;
        opacity: 0;
        transform: translateY(-15px);
        pointer-events: none;
        transition: opacity 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                    transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    .nav-links.open {
        opacity: 1;
        transform: translateY(0);
        pointer-events: all;
    }

    .nav-links li {
        width: 100%;
        text-align: center;
    }

    .nav-links a {
        display: block;
        padding: 0.5rem 0;
        font-size: 1.05rem;
        width: 100%;
    }

    .nav-links a::after {
        display: none;
    }

    .nav-toggle.open .hamburger-bar:nth-child(1) {
        transform: rotate(45deg) translate(1px, -1px);
    }

    .nav-toggle.open .hamburger-bar:nth-child(2) {
        width: 0%;
        opacity: 0;
    }

    .nav-toggle.open .hamburger-bar:nth-child(3) {
        transform: rotate(-45deg) translate(1px, 1px);
    }

    .mobile-only {
        display: block !important;
    }

    .nav-container {
        gap: 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .timeline-line {
        left: 20px;
    }

    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin-left: 60px;
        margin-right: 0;
        text-align: left;
    }

    .timeline-dot {
        left: 20px;
    }
}