/* ---------------------------------
   1. GLOBAL VARIABLES & SETUP
--------------------------------- */
:root {
    /* Colors */
    --color-white: #ffffff;
    --color-offwhite: #eff0f5;
    --color-black: #000000;
    --color-darkgray: #575756;
    --color-accent: #000000;
    
    /* Typography */
    --font-sans: 'Google Sans', 'Montserrat', system-ui, -apple-system, sans-serif;
    --font-serif: 'Montserrat', sans-serif;
    
    /* Metrics */
    --line-width: 1px;
    --section-padding: 8rem;
    --container-max: 1400px;
    
    /* Viewport calculation for smooth scaling */
    --fluid-1: clamp(1rem, 1vw + 0.5rem, 1.25rem);
    --fluid-2: clamp(1.5rem, 2vw + 1rem, 2.5rem);
    --fluid-3: clamp(2.5rem, 4vw + 1rem, 5rem);
    --fluid-giant: clamp(3rem, 7vw + 1rem, 8rem);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-offwhite);
    color: var(--color-black);
    line-height: 1.6;
    overflow-x: hidden;
    cursor: none; /* For custom cursor */
}

/* ---------------------------------
   2. CUSTOM CURSOR
--------------------------------- */
.custom-cursor {
    position: fixed;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    border: var(--line-width) solid var(--color-white);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 9999;
    transition: width 0.3s cubic-bezier(0.165, 0.84, 0.44, 1), 
                height 0.3s cubic-bezier(0.165, 0.84, 0.44, 1), 
                background-color 0.3s ease, border-color 0.3s;
    mix-blend-mode: difference;
}

.custom-cursor.hover-state {
    width: 50px;
    height: 50px;
    background-color: var(--color-white);
    mix-blend-mode: difference;
    border-color: transparent;
}

.custom-cursor::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 4px;
    height: 4px;
    background-color: var(--color-white);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s ease;
}

.custom-cursor.hover-state::after {
    opacity: 0;
}

@media (hover: none) and (pointer: coarse) {
    body { cursor: auto; }
    .custom-cursor { display: none !important; }
}

/* ---------------------------------
   3. TYPOGRAPHY & HELPERS
--------------------------------- */
h1, h2, h3, h4, .logo, .section-number {
    font-weight: 400;
    letter-spacing: -0.02em;
}

.logo {
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--color-black);
    z-index: 100;
}

.logo img {
    height: 36px;
    width: auto;
    display: block;
}

.section-number {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--color-darkgray);
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
}

.section-number::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 100%;
    height: var(--line-width);
    background-color: var(--color-black);
}

.section-title {
    font-family: var(--font-sans);
    font-size: var(--fluid-2);
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

p {
    font-size: var(--fluid-1);
    color: var(--color-darkgray);
    font-weight: 300;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 5%;
}

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

a { 
    color: inherit; 
    text-decoration: none;
}

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

/* ---------------------------------
   4. NAVIGATION
--------------------------------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background-color: var(--color-white);
    color: var(--color-black);
    transition: transform 0.4s ease;
    border-bottom: var(--line-width) solid var(--color-black);
}

.navbar.hidden {
    transform: translateY(-100%);
}

.nav-links {
    display: flex;
    gap: 3rem;
}

.nav-link {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    position: relative;
    overflow: hidden;
    padding-bottom: 4px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0px;
    left: 0;
    width: 100%;
    height: var(--line-width);
    background-color: var(--color-black);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s ease;
}

.nav-link:hover::after, .nav-link.active::after {
    transform: scaleX(1);
    transform-origin: left;
}

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

.lang-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 500;
}

.lang-btn {
    background: none;
    border: none;
    color: var(--color-black);
    cursor: pointer;
    opacity: 0.5;
    transition: opacity 0.3s ease;
    font-family: inherit;
    font-size: inherit;
    font-weight: inherit;
    padding: 0;
}

.lang-btn:hover {
    opacity: 0.8;
}

.lang-btn.active {
    opacity: 1;
}

.lang-sep {
    color: var(--color-black);
    opacity: 0.3;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--color-black);
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1000; /* keep above fullscreen menu */
}

/* CSS Hamburger */
.hamburger {
    width: 26px;
    height: 18px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    cursor: pointer;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-black);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease;
    transform-origin: center;
}

.mobile-menu-btn.open .hamburger span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.mobile-menu-btn.open .hamburger span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.open .hamburger span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* ---------------------------------
   5. ANIMATIONS BASE
--------------------------------- */
.fade-in-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1s cubic-bezier(0.2, 0.8, 0.2, 1), 
                transform 1s cubic-bezier(0.2, 0.8, 0.2, 1);
}

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

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }
.delay-6 { transition-delay: 0.6s; }

.draw-line {
    position: relative;
}
.draw-line::after {
    content: '';
    position: absolute;
    background-color: var(--color-black);
    transition: transform 1.2s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.draw-line-horizontal::after {
    bottom: 0; left: 0;
    width: 100%; height: var(--line-width);
    transform: scaleX(0); transform-origin: left;
}
.draw-line-horizontal.visible::after { transform: scaleX(1); }

.draw-line-vertical::after {
    top: 0; right: 0;
    width: var(--line-width); height: 100%;
    transform: scaleY(0); transform-origin: top;
}
.draw-line-vertical.visible::after { transform: scaleY(1); }


/* ---------------------------------
   6. SECTIONS
--------------------------------- */
section {
    padding: var(--section-padding) 0;
    position: relative;
}

/* 01 Hero */
.section-hero {
    height: 100vh;
    min-height: 600px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.hero-bg {
    position: absolute;
    top: -5%;
    left: -5%;
    width: 110%;
    height: 110%;
    z-index: -1;
    will-change: transform;
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.3); /* Muted overlay */
}

.hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.8) contrast(1.1);
    animation: heroBreathe 25s ease-in-out infinite;
}

@keyframes heroBreathe {
    0% { transform: scale(1); }
    50% { transform: scale(1.08); }
    100% { transform: scale(1); }
}

.hero-content {
    text-align: center;
    color: var(--color-white);
    z-index: 10;
}

.hero-title {
    font-size: var(--fluid-3);
    line-height: 1.1;
    font-weight: 300;
}

.hero-title em {
    position: relative;
    display: inline-block;
    font-family: var(--font-serif);
    font-style: italic;
    color: var(--color-black); /* Text black to contrast with white bg */
    padding: 0 0.3em;
    z-index: 1;
}

.hero-title em::before {
    content: '';
    position: absolute;
    top: 5%;
    left: 0;
    width: 100%;
    height: 90%;
    background-color: var(--color-white);
    transform: skewX(-10deg);
    z-index: -1;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    color: var(--color-white);
    opacity: 0.7;
}

.scroll-indicator .line {
    width: var(--line-width);
    height: 60px;
    background-color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.scroll-indicator .line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-accent);
    transform: translateY(-100%);
    animation: scrollLine 2s infinite ease-in-out;
}

@keyframes scrollLine {
    0% { transform: translateY(-100%); }
    50% { transform: translateY(0); }
    100% { transform: translateY(100%); }
}

/* 02 About */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    max-width: 90%;
}

.about-image {
    position: relative;
    padding: 2rem;
}

.about-image img {
    width: 100%;
    aspect-ratio: 4/5;
    object-fit: cover;
    filter: grayscale(100%);
    transition: filter 0.5s ease;
}

.about-image:hover img {
    filter: grayscale(0%);
}

.blueprint-marker {
    position: absolute;
    width: 30px;
    height: 30px;
}

.blueprint-marker.top-left {
    top: 0; left: 0;
    border-top: var(--line-width) solid var(--color-black);
    border-left: var(--line-width) solid var(--color-black);
}

.blueprint-marker.bottom-right {
    bottom: 0; right: 0;
    border-bottom: var(--line-width) solid var(--color-black);
    border-right: var(--line-width) solid var(--color-black);
}

/* 03 Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-top: var(--line-width) solid var(--color-black);
    border-left: var(--line-width) solid var(--color-black);
    margin-top: 4rem;
}

.service-card {
    padding: 4rem 2rem;
    border-right: var(--line-width) solid var(--color-black);
    border-bottom: var(--line-width) solid var(--color-black);
    position: relative;
    background-size: 100% 200%;
    background-image: linear-gradient(to bottom, transparent 50%, #1220e5 50%);
    transition: background-position 0.4s ease, color 0.4s ease;
    cursor: none; /* Let custom cursor handle it */
}

.service-card:hover {
    background-position: 0 100%;
    color: var(--color-white);
}

.service-card i {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--color-accent);
    transition: transform 0.4s ease;
}

.service-card:hover i {
    transform: scale(1.1);
    color: #ffffff;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.service-card p {
    font-size: 1rem;
    transition: color 0.4s ease;
}

.service-card:hover p {
    color: var(--color-offwhite);
}

/* 04 Values */
.section-values {
    background-color: var(--color-white);
    padding: 12rem 0;
}

.giant-typography {
    font-size: var(--fluid-giant);
    line-height: 1;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2vw;
    margin-bottom: 3rem;
}

.giant-typography .word {
    font-family: var(--font-sans);
    text-transform: uppercase;
    font-weight: 500;
    letter-spacing: -0.04em;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s ease, transform 1s ease;
}

.section-values.in-view .word {
    opacity: 1;
    transform: translateY(0);
}

.section-values.in-view .word:nth-child(1) { transition-delay: 0.1s; }
.section-values.in-view .word:nth-child(2) { transition-delay: 0.3s; }
.section-values.in-view .word:nth-child(3) { transition-delay: 0.5s; }

.giant-typography .accent {
    font-family: var(--font-serif);
    font-style: italic;
    color: var(--color-accent);
    text-transform: none;
    font-weight: 400;
}

.values-desc {
    max-width: 600px;
    margin: 0 auto;
}

/* 05 Portfolio */
.section-portfolio {
    overflow: hidden;
    padding-bottom: 10rem;
}

.horizontal-scroll-container {
    width: 100vw;
    position: relative;
    padding-left: 5%;
    margin-top: 4rem;
    overflow-x: auto;
    scrollbar-width: none; /* Firefox */
}

.horizontal-scroll-container::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
}

.horizontal-track {
    display: flex;
    gap: 4vw;
    width: max-content;
    padding-right: 5vw;
}

.portfolio-item {
    width: 35vw;
    min-width: 300px;
    max-width: 600px;
    display: flex;
    flex-direction: column;
}

.portfolio-img-wrapper {
    overflow: hidden;
    aspect-ratio: 3/4;
    margin-bottom: 1.5rem;
    position: relative;
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.portfolio-item:hover img {
    transform: scale(1.05);
}

.portfolio-info {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    border-top: var(--line-width) solid var(--color-black);
    padding-top: 1rem;
}

.portfolio-info h4 {
    font-size: 1.25rem;
    text-transform: uppercase;
}

.portfolio-info .category {
    font-family: var(--font-serif);
    font-style: italic;
    color: var(--color-darkgray);
}

/* 06 Capabilities */
.capabilities-grid {
    display: flex;
    border-top: var(--line-width) solid var(--color-black);
    border-bottom: var(--line-width) solid var(--color-black);
    margin-top: 4rem;
}

.capability-col {
    flex: 1;
    padding: 4rem 2rem;
}

.capability-divider {
    width: var(--line-width);
    background-color: var(--color-black);
}

.capability-col h3 {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: var(--fluid-2);
    margin-bottom: 1.5rem;
    color: var(--color-accent);
}

/* 07 Contact / Footer */
.section-contact {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: var(--section-padding) 0 4rem 0;
}

.grid-contact {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 8rem;
}

.contact-info .logo-footer {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--color-white);
    margin-bottom: 3rem;
}

.logo-footer img {
    height: 48px;
    width: auto;
    display: block;
}

.contact-details p {
    color: var(--color-white);
    opacity: 0.8;
    margin-bottom: 1rem;
}

.contact-details a {
    position: relative;
}

.contact-details a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: var(--line-width);
    background-color: var(--color-accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s ease;
}

.contact-details a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* Multi-line address link — disable underline-on-hover (looks broken across <br>), use color shift instead */
.contact-address-link {
    transition: color 0.3s ease, opacity 0.3s ease;
    display: inline-block;
}

.contact-address-link::after {
    display: none;
}

.contact-address-link:hover {
    color: var(--color-accent);
    opacity: 1;
}

.cta-text {
    font-size: var(--fluid-2);
    font-weight: 300;
    margin-bottom: 2.5rem;
}

.btn-outline {
    display: inline-block;
    padding: 1.25rem 2.5rem;
    border: var(--line-width) solid var(--color-white);
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.9rem;
    position: relative;
    overflow: hidden;
    transition: color 0.4s ease;
    z-index: 1;
}

.btn-outline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-white);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s ease;
    z-index: -1;
}

.btn-outline:hover {
    color: var(--color-black);
}

.btn-outline:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: var(--line-width) solid rgba(255, 255, 255, 0.2);
    padding-top: 2rem;
}

.socials {
    display: flex;
    gap: 1.5rem;
}

.socials a {
    font-size: 1.5rem;
    color: var(--color-white);
    opacity: 0.8;
    transition: opacity 0.3s ease, color 0.3s ease;
}

.socials a:hover {
    opacity: 1;
    color: var(--color-accent);
}

.copyright {
    color: var(--color-white);
    opacity: 0.5;
    font-size: 0.85rem;
}

.certification {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.certification .cert-label {
    color: var(--color-white);
    opacity: 0.5;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

.certification img {
    height: 40px;
    width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.85;
    transition: opacity 0.3s ease;
}

.certification img:hover {
    opacity: 1;
}

/* ---------------------------------
   7. MEDIA QUERIES
--------------------------------- */
@media (max-width: 991px) {
    .grid-2 {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .capabilities-grid {
        flex-direction: column;
    }
    
    .capability-divider {
        width: 100%;
        height: var(--line-width);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .nav-links.mobile-active {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background-color: var(--color-white);
        justify-content: center;
        align-items: center;
        z-index: 998;
        gap: 2rem;
    }
    
    .nav-links.mobile-active .nav-link {
        font-size: 1.5rem;
    }
    
    .lang-switcher {
        display: none; /* simple mobile hide for now, or could keep it */
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: 2rem;
        align-items: flex-start;
    }

    /* Portfolio: 2-column compact grid on mobile (instead of 37 full-screen items) */
    .horizontal-scroll-container {
        width: 100%;
        overflow-x: hidden;
        padding-left: 1rem;
        padding-right: 1rem;
        margin-top: 2rem;
    }

    .horizontal-track {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        width: 100%;
        padding-right: 0;
        gap: 1.25rem;
    }

    .portfolio-item {
        width: 100%;
        max-width: 100%;
        min-width: 0;
    }

    .portfolio-img-wrapper {
        aspect-ratio: 1 / 1;
        margin-bottom: 0.75rem;
    }

    .portfolio-info {
        flex-direction: column;
        gap: 0.25rem;
        align-items: flex-start;
        padding-top: 0.5rem;
    }

    .portfolio-info h3 {
        font-size: 0.9rem;
        line-height: 1.2;
    }

    .portfolio-info .category {
        font-size: 0.75rem;
    }
}

/* Disable Custom Cursor on Touch Devices AND Mobile Screens */
@media (max-width: 768px), (hover: none) and (pointer: coarse) {
    #custom-cursor {
        display: none !important;
        opacity: 0 !important;
        visibility: hidden !important;
        pointer-events: none !important;
    }
    body, * {
        cursor: auto !important;
    }
    a, button, .service-card, .lang-btn, .mobile-menu-btn {
        cursor: pointer !important;
    }
}