/*
 * ================================================================
 * FAST AI LABS - MINIMAL BLACK & WHITE DESIGN SYSTEM
 * Pure, Clean, Typography-focused, Elegant
 * ================================================================
 */

/* ============================================================
   GOOGLE FONTS - INTER
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ============================================================
   RESET & BASE
   ============================================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: #000000;
    color: #FFFFFF;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================================
   NAVIGATION - MINIMAL & CLEAN
   ============================================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: rgba(0, 0, 0, 0.95);
    border-bottom: 1px solid #1A1A1A;
    z-index: 1000;
    backdrop-filter: blur(20px);
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-size: 16px !important;
    font-weight: 600 !important;
    letter-spacing: -0.02em !important;
    color: #FFFFFF !important;
    text-decoration: none !important;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 40px;
    list-style: none;
}

.nav-links a {
    font-size: 14px !important;
    font-weight: 500 !important;
    color: #999999 !important;
    text-decoration: none !important;
    transition: color 0.2s ease !important;
}

.nav-links a:hover {
    color: #FFFFFF !important;
}

/* ============================================================
   HERO - BIG, BOLD, MINIMAL
   ============================================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 40px 80px;
}

.hero-content-wrapper {
    max-width: 1000px;
    text-align: center;
}

.hero h1 {
    font-size: clamp(56px, 10vw, 120px) !important;
    font-weight: 800 !important;
    line-height: 1 !important;
    letter-spacing: -0.04em !important;
    margin-bottom: 32px !important;
    color: #FFFFFF !important;
}

.hero p {
    font-size: clamp(18px, 3vw, 24px) !important;
    font-weight: 400 !important;
    color: #666666 !important;
    line-height: 1.5 !important;
    margin-bottom: 48px !important;
    max-width: 700px !important;
    margin-left: auto !important;
    margin-right: auto !important;
}

.hero-actions {
    display: flex !important;
    gap: 16px !important;
    justify-content: center !important;
    flex-wrap: wrap !important;
}

/* ============================================================
   BUTTONS - SIMPLE & CLEAN
   ============================================================ */
.btn-primary {
    padding: 16px 40px !important;
    background: #FFFFFF !important;
    color: #000000 !important;
    border: none !important;
    border-radius: 6px !important;
    font-size: 15px !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
    text-decoration: none !important;
    display: inline-block !important;
}

.btn-primary:hover {
    background: #E6E6E6 !important;
    transform: translateY(-1px) !important;
}

.btn-secondary {
    padding: 16px 40px !important;
    background: transparent !important;
    color: #FFFFFF !important;
    border: 1px solid #333333 !important;
    border-radius: 6px !important;
    font-size: 15px !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
    text-decoration: none !important;
    display: inline-block !important;
}

.btn-secondary:hover {
    border-color: #666666 !important;
    background: #0A0A0A !important;
}

/* ============================================================
   PARTNERS - MINIMAL
   ============================================================ */
.partners-scroll {
    padding: 80px 0;
    border-top: 1px solid #1A1A1A;
    border-bottom: 1px solid #1A1A1A;
    overflow: hidden;
}

.partners-track {
    display: flex;
    gap: 80px;
    animation: scroll-partners 40s linear infinite;
}

@keyframes scroll-partners {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.partner-logo {
    height: 28px;
    width: auto;
    filter: brightness(0) invert(1) opacity(0.3);
    transition: opacity 0.2s ease;
}

.partner-logo:hover {
    opacity: 0.6;
}

/* ============================================================
   FEATURE CARDS - CLEAN & MINIMAL
   ============================================================ */
.features-swipe {
    padding: 120px 40px;
}

.cards-swipe-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.swipe-card {
    padding: 40px;
    background: #0A0A0A;
    border: 1px solid #1A1A1A;
    border-radius: 8px;
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
}

.swipe-card:hover {
    background: #111111;
    border-color: #333333;
}

.swipe-card h3 {
    font-size: 18px !important;
    font-weight: 600 !important;
    margin-bottom: 12px !important;
    color: #FFFFFF !important;
}

.swipe-card p {
    font-size: 14px !important;
    color: #666666 !important;
    line-height: 1.6 !important;
}

/* ============================================================
   SERVICES - SIMPLE GRID
   ============================================================ */
.services {
    padding: 120px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-intro {
    margin-bottom: 80px;
}

.section-intro h2 {
    font-size: clamp(32px, 6vw, 56px);
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.03em;
}

.section-intro p {
    font-size: 18px;
    color: #666666;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.service-item {
    padding: 48px 40px;
    background: #0A0A0A;
    border: 1px solid #1A1A1A;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.service-item:hover {
    background: #111111;
    border-color: #333333;
}

.service-number {
    font-size: 72px;
    font-weight: 800;
    color: #1A1A1A;
    line-height: 1;
    margin-bottom: 24px;
}

.service-item h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.service-item p {
    font-size: 15px;
    color: #666666;
    line-height: 1.6;
    margin-bottom: 24px;
}

.service-list {
    list-style: none;
    padding: 0;
}

.service-list li {
    font-size: 14px;
    color: #999999;
    padding: 10px 0;
    border-top: 1px solid #1A1A1A;
}

.service-list li:first-child {
    border-top: none;
}

/* ============================================================
   WORK SECTION
   ============================================================ */
.work {
    padding: 120px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.project-item {
    padding: 60px;
    background: #0A0A0A;
    border: 1px solid #1A1A1A;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.project-item:hover {
    background: #111111;
    border-color: #333333;
}

.project-item h3 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.03em;
}

.project-lead {
    font-size: 20px;
    color: #666666;
    margin-bottom: 20px;
}

.project-item p {
    font-size: 16px;
    color: #999999;
    line-height: 1.6;
}

.project-features {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 32px;
}

.feature-tag {
    padding: 8px 16px;
    background: #1A1A1A;
    border-radius: 4px;
    font-size: 13px;
    color: #999999;
    font-weight: 500;
}

.project-link {
    display: inline-block;
    margin-top: 24px;
    color: #FFFFFF;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.2s ease;
}

.project-link:hover {
    opacity: 0.7;
}

/* ============================================================
   WHY US
   ============================================================ */
.why-us {
    padding: 120px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.why-content h2 {
    font-size: clamp(32px, 6vw, 56px);
    font-weight: 700;
    margin-bottom: 80px;
    letter-spacing: -0.03em;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.why-item {
    padding: 40px;
    background: #0A0A0A;
    border: 1px solid #1A1A1A;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.why-item:hover {
    background: #111111;
    border-color: #333333;
}

.why-item h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.why-item p {
    font-size: 15px;
    color: #666666;
    line-height: 1.6;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about {
    padding: 120px 40px;
    max-width: 800px;
    margin: 0 auto;
}

.about-content h2 {
    font-size: clamp(32px, 6vw, 56px);
    font-weight: 700;
    margin-bottom: 32px;
    letter-spacing: -0.03em;
}

.about-lead {
    font-size: 20px;
    color: #999999;
    margin-bottom: 32px;
    line-height: 1.6;
}

.about-content p {
    font-size: 16px;
    color: #666666;
    line-height: 1.7;
    margin-bottom: 24px;
}

.about-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
    margin-top: 60px;
}

.info-item {
    padding: 32px;
    background: #0A0A0A;
    border: 1px solid #1A1A1A;
    border-radius: 8px;
}

.info-label {
    font-size: 12px;
    color: #666666;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.info-value {
    font-size: 20px;
    font-weight: 600;
    color: #FFFFFF;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
    padding: 120px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.contact-intro h2 {
    font-size: clamp(32px, 6vw, 56px);
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
}

.contact-intro p {
    font-size: 18px;
    color: #666666;
    margin-bottom: 40px;
}

.contact-info .info-row {
    margin-bottom: 24px;
}

.contact-info .label {
    font-size: 12px;
    color: #666666;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 8px;
}

.contact-info .value {
    font-size: 15px;
    color: #FFFFFF;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 16px;
    background: #0A0A0A;
    border: 1px solid #1A1A1A;
    border-radius: 6px;
    font-size: 15px;
    color: #FFFFFF;
    font-family: 'Inter', sans-serif;
    margin-bottom: 16px;
    transition: all 0.2s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    background: #111111;
    border-color: #333333;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: #666666;
}

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

.contact-form .btn-primary {
    width: 100%;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    border-top: 1px solid #1A1A1A;
    padding: 80px 40px 40px;
    background: #000000;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .brand-name {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 14px;
    color: #666666;
    line-height: 1.6;
    margin-bottom: 16px;
}

.footer-address {
    font-size: 13px !important;
    color: #666666 !important;
}

.link-group h4 {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
    color: #999999;
}

.link-group ul {
    list-style: none;
    padding: 0;
}

.link-group li {
    margin-bottom: 12px;
}

.link-group a {
    font-size: 14px;
    color: #666666;
    text-decoration: none;
    transition: color 0.2s ease;
}

.link-group a:hover {
    color: #FFFFFF;
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid #1A1A1A;
}

.footer-bottom p {
    font-size: 13px;
    color: #666666;
    text-align: center;
}

/* ============================================================
   LOCATION MAP
   ============================================================ */
.location-map {
    border-top: 1px solid #1A1A1A;
    border-bottom: 1px solid #1A1A1A;
}

.map-wrapper iframe {
    width: 100%;
    height: 500px;
    filter: grayscale(1) invert(1);
}

/* ============================================================
   RESPONSIVE - MOBILE
   ============================================================ */
@media (max-width: 768px) {
    .nav-content {
        padding: 0 24px;
    }

    .nav-links {
        display: none;
    }

    .hero {
        padding: 100px 24px 60px;
    }

    .hero h1 {
        font-size: 48px !important;
    }

    .hero p {
        font-size: 16px !important;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .hero-actions .btn-primary,
    .hero-actions .btn-secondary {
        width: 100%;
    }

    .services,
    .work,
    .why-us,
    .about,
    .contact {
        padding: 80px 24px;
    }

    .service-grid,
    .why-grid,
    .cards-swipe-container {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-main {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .service-item,
    .project-item {
        padding: 32px 24px;
    }
}

/* ============================================================
   PERFORMANCE
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}