/* 
  COMEBACK 2026: IMMERSIVE CONSTRUCTION DESIGN SYSTEM 
  Premium, 3D, and Dynamic
*/

:root {
    --primary: hsl(220, 90%, 52%);
    --primary-glow: hsla(220, 90%, 52%, 0.3);
    --orange: hsl(220, 90%, 52%);
    --black: #000000;
    --white: #FFFFFF;
    --gray-light: #f8f8f8;
    --glass: rgba(255, 255, 255, 0.02);
    --border: rgba(255, 255, 255, 0.08);
    --font-main: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-detail: 'Roboto Mono', monospace;
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Scroll Progress Bar */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 4px;
    background: var(--primary);
    z-index: 10001;
    transition: width 0.1s ease-out;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--white);
    color: var(--black);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Grain Overlay */
.grain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('https://grainy-gradients.vercel.app/noise.svg');
    opacity: 0.05;
    pointer-events: none;
    z-index: 9998;
}

/* --- Smooth Scrolling Support --- */
html.lenis { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto; }
.lenis.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; }
.lenis.lenis-stopped { overflow: hidden; }

/* --- Hero & 3D Canvas --- */
#hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    opacity: 0.4;
}

.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    overflow: hidden;
    background: #000;
    padding: 0 5%;
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 1200px;
    width: 100%;
}

.hero-image-backdrop {
    position: absolute;
    inset: 0;
    z-index: 2;
}

.hero-image-backdrop img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
    transform: scale(1.1);
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, transparent 0%, rgba(0,0,0,0.8) 100%);
    pointer-events: none;
}

.reveal-mask {
    overflow: hidden;
    display: block;
}

.reveal-mask span {
    display: block;
    transform: translateY(110%);
    transition: transform 1.2s var(--ease-out-expo);
}

.reveal-mask.active span {
    transform: translateY(0);
}

.bg-glow-blue {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    filter: blur(80px);
    pointer-events: none;
    z-index: 1;
}

/* Advanced Typography */
h1, h2, h3, h4 {
    letter-spacing: -0.05em;
    line-height: 0.9;
    font-weight: 900;
}

.text-editorial {
    font-size: clamp(3rem, 8vw, 8rem);
    text-transform: uppercase;
    font-weight: 900;
    line-height: 0.85;
    letter-spacing: -0.05em;
    color: #000;
}

.text-editorial-white { color: #fff; }

.section-label {
    font-family: 'Roboto Mono', monospace;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5em;
    color: var(--orange);
    display: block;
    margin-bottom: 2rem;
}

.text-detail {
    font-size: 0.65rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.4em;
    color: var(--orange);
}

.vertical-text {
    writing-mode: vertical-rl;
    text-orientation: mixed;
}

/* Asymmetric Layout Utilities */
@media (min-width: 1024px) {
    .offset-up { transform: translateY(-50px); }
    .offset-down { transform: translateY(50px); }
    .bleed-right { margin-right: -10vw; }
    .bleed-left { margin-left: -10vw; }
}

/* Page Transition Overlay */
.page-transition {
    position: fixed;
    inset: 0;
    background: #000;
    z-index: 10002;
    transform: translateY(100%);
    display: none;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

/* Form Polish */
.form-field {
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(0,0,0,0.1);
    padding: 1.5rem 0;
    width: 100%;
    font-size: 1.2rem;
    font-weight: 500;
    transition: all 0.4s ease;
    outline: none;
}

.form-field:focus {
    border-bottom-color: var(--orange);
    padding-left: 1rem;
}

/* Button Systems */
.btn-magnetic {
    display: inline-block;
    transition: transform 0.4s var(--ease-out-expo), box-shadow 0.4s ease;
    cursor: pointer;
    will-change: transform;
}

.btn-magnetic:active {
    transform: scale(0.92) !important;
}

.form-field:focus + label,
.form-field:not(:placeholder-shown) + label {
    transform: translateY(-2.5rem) scale(0.8);
    color: var(--orange);
}

.floating-label-group {
    position: relative;
    margin-bottom: 2rem;
}

.floating-label {
    position: absolute;
    top: 1.5rem;
    left: 0;
    pointer-events: none;
    transition: all 0.4s ease;
    font-weight: 900;
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    color: rgba(0,0,0,0.4);
}

/* --- Preloader --- */
#preloader {
    position: fixed;
    inset: 0;
    background: #ffffff;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 0;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

#preloader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader-logo {
    font-size: clamp(2.2rem, 6vw, 4rem);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -0.04em;
    line-height: 1;
    color: #000;
    font-style: italic;
    margin-bottom: 2.5rem;
}

.preloader-logo span {
    color: #2563eb;
}

.preloader-bar-wrap {
    width: 160px;
    height: 2px;
    background: #e5e7eb;
    border-radius: 99px;
    overflow: hidden;
}

.preloader-bar {
    height: 100%;
    width: 0%;
    background: #2563eb;
    border-radius: 99px;
    animation: preloaderFill 1.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes preloaderFill {
    0%   { width: 0%; }
    60%  { width: 80%; }
    85%  { width: 92%; }
    100% { width: 100%; }
}

/* --- Skeleton Loading --- */
.skeleton {
    position: relative;
    overflow: hidden;
    background-color: #f3f4f6; /* light gray for light sections */
}

.skeleton-dark {
    position: relative;
    overflow: hidden;
    background-color: #111827; /* dark gray for dark sections */
}

.skeleton::after, .skeleton-dark::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    transform: translateX(-100%);
    background-image: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.4) 20%,
        rgba(255, 255, 255, 0.6) 60%,
        rgba(255, 255, 255, 0) 100%
    );
    animation: shimmer 1.6s infinite;
    z-index: 5;
}

.skeleton-dark::after {
    background-image: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.04) 20%,
        rgba(255, 255, 255, 0.08) 60%,
        rgba(255, 255, 255, 0) 100%
    );
}

@keyframes shimmer {
    100% {
        transform: translateX(100%);
    }
}

.skeleton-img {
    opacity: 0;
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.skeleton-img.loaded {
    opacity: 1;
}

/* Gallery Systems */
.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 1rem;
    transition: all 0.6s var(--ease-out-expo);
}

.gallery-item:hover { transform: scale(1.02); z-index: 10; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s ease; }
.gallery-item:hover img { transform: scale(1.1); }

/* Navigation */
.nav-floating {
    position: fixed;
    top: 2rem;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 0 2rem;
    pointer-events: none;
}

.nav-glass {
    max-width: 1200px;
    margin: 0 auto;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 100px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2.5rem;
    pointer-events: auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

/* --- Interaction Enhancements --- */
.nav-link {
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: rgba(0, 0, 0, 0.7);
    padding: 0 1.5rem;
    display: inline-block;
}

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

/* Project Spotlight Feature */
.project-spotlight {
    position: relative;
    border: 1px solid rgba(255,255,255,0.05);
    background: #080808;
    border-radius: 40px;
    padding: 60px;
    transition: all 0.6s var(--ease-out-expo);
    overflow: hidden;
}

.project-spotlight:hover {
    border-color: var(--orange);
    box-shadow: 0 40px 100px rgba(0,0,0,0.5), 0 0 40px var(--primary-glow);
}

.project-spotlight::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--x, 50%) var(--y, 50%), rgba(37, 99, 235, 0.1) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-spotlight:hover::before { opacity: 1; }

/* Image Reveal Enhancement */
.image-reveal-container {
    position: relative;
    overflow: hidden;
    clip-path: inset(0 0 0 0);
    transition: clip-path 1.2s var(--ease-out-expo);
}

/* Footer */
footer {
    background: #000;
    color: #fff;
    padding: 6rem 2rem 3rem;
    position: relative;
    overflow: hidden;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.footer-bg-text {
    position: absolute;
    bottom: -5vw;
    right: -2vw;
    font-size: 25vw;
    font-weight: 900;
    color: rgba(255,255,255,0.03);
    line-height: 0.8;
    pointer-events: none;
    z-index: 1;
}

/* --- 3D Cards --- */
.card-3d {
    background: #fff;
    border-radius: 30px;
    padding: 40px;
    border: 1px solid #eee;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    transition: all 0.5s var(--ease-out-expo);
    position: relative;
    overflow: hidden;
}

.card-3d::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--x) var(--y), rgba(37, 99, 235, 0.15) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.card-3d:hover::after { opacity: 1; }

/* Marquee Animation */
.marquee-container { display: flex; width: fit-content; }

/* Image Treatment */
.image-reveal-container { position: relative; overflow: hidden; }
.image-reveal-container img { transform: scale(1.2); transition: transform 1.5s var(--ease-out-expo); }
.image-reveal-container:hover img { transform: scale(1); }

/* --- Buttons --- */
.btn-magnetic {
    display: inline-block;
    text-decoration: none;
    font-weight: 900;
    text-transform: uppercase;
    border-radius: 100px;
    letter-spacing: 0.1em;
    transition: transform 0.3s var(--ease-out-expo), box-shadow 0.3s ease, background 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-magnetic:hover {
    box-shadow: 0 15px 40px var(--primary-glow);
    transform: translateY(-2px);
}

/* --- Responsive & Viewport Refinement --- */
.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.97);
    backdrop-filter: blur(20px);
    z-index: 999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s var(--ease-out-expo);
}

.mobile-menu-overlay.active { opacity: 1; pointer-events: auto; }

.mobile-menu-overlay .nav-link {
    font-size: 2rem;
    display: block;
    margin: 0.5rem 0;
    text-align: center;
    transform: translateY(20px);
    opacity: 0;
    transition: transform 0.5s var(--ease-out-expo), opacity 0.5s ease;
    color: #fff;
    letter-spacing: 0.05em;
}

.mobile-menu-overlay.active .nav-link { transform: translateY(0); opacity: 1; }

/* ---- Section Spacing Tokens ---- */
.section-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

/* ---- Service Card ---- */
.service-card {
    background: #fff;
    border: 1px solid rgba(0,0,0,0.06);
    border-radius: 2rem;
    overflow: hidden;
    transition: transform 0.4s var(--ease-out-expo), box-shadow 0.4s ease, border-color 0.3s ease;
}
.service-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 30px 80px rgba(0,0,0,0.08);
    border-color: var(--orange);
}

/* ---- Responsive Breakpoints ---- */
@media (max-width: 1200px) {
    .section-split { gap: 3rem; }
}

@media (max-width: 1024px) {
    .section-split { grid-template-columns: 1fr; }
    .hero-section { padding: 0 6%; }
}

@media (max-width: 768px) {
    .nav-floating { width: 100%; padding: 0 1rem; top: 1rem; }
    .nav-glass { padding: 0 1.5rem; height: 60px; border-radius: 30px; }
    
    .section-split { grid-template-columns: 1fr; gap: 2.5rem; }

    h1 { font-size: clamp(2rem, 9vw, 3.5rem) !important; line-height: 0.9 !important; }
    h2 { font-size: clamp(1.8rem, 7vw, 3rem) !important; line-height: 0.95 !important; }
    h3 { font-size: clamp(1.5rem, 6vw, 2.5rem) !important; line-height: 1 !important; }
    .text-editorial { font-size: clamp(2rem, 9vw, 5rem) !important; }
    
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    .footer-bg-text { font-size: 30vw; bottom: 0; }
    
    .py-60 { padding-top: 3rem !important; padding-bottom: 3rem !important; }
    .py-40 { padding-top: 2.5rem !important; padding-bottom: 2.5rem !important; }
    .py-80 { padding-top: 4rem !important; padding-bottom: 4rem !important; }
    .px-12 { padding-left: 1.25rem !important; padding-right: 1.25rem !important; }
    .mb-32 { margin-bottom: 2rem !important; }
    .mb-80 { margin-bottom: 3rem !important; }
    .gap-32 { gap: 2rem !important; }
    .gap-24 { gap: 1.5rem !important; }
}

@media (max-width: 480px) {
    h1 { font-size: clamp(1.8rem, 10vw, 2.8rem) !important; }
    .hero-section { padding: 0 1rem; }
    .px-12 { padding-left: 1rem !important; padding-right: 1rem !important; }
}

/* Logo Glitch Effect */
.logo-glitch {
    position: relative;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #000;
    cursor: pointer;
}

footer .logo-glitch {
    color: #fff;
}

@keyframes glitch {
    0% { transform: translate(0); }
    20% { transform: translate(-2px, 2px); }
    40% { transform: translate(-2px, -2px); }
    60% { transform: translate(2px, 2px); }
    80% { transform: translate(2px, -2px); }
    100% { transform: translate(0); }
}

/* Quick Quote FAB */
.fab-quote {
    position: fixed;
    bottom: 3rem;
    right: 3rem;
    width: 60px;
    height: 60px;
    background: var(--orange);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    cursor: pointer;
    box-shadow: 0 10px 30px var(--primary-glow);
    transform: scale(0) rotate(90deg);
    transition: all 0.5s var(--ease-out-expo);
    text-decoration: none;
}

.fab-quote.active {
    transform: scale(1) rotate(0deg);
}

.fab-quote span {
    font-size: 1.5rem;
    font-weight: bold;
}

/* Horizontal Scroll Experience */
.horizontal-scroll-container {
    height: 300vh;
    background: #000;
    position: relative;
}

.horizontal-scroll-track {
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    align-items: center;
    width: 300vw;
    will-change: transform;
}

.horizontal-item {
    width: 100vw;
    height: 100vh;
    flex-shrink: 0;
    position: relative;
    border-right: 1px solid rgba(255,255,255,0.05);
    background: #050505;
}

/* --- Dropdown System --- */
.nav-item-dropdown {
    position: relative;
    display: inline-block;
    pointer-events: auto;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(15px);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(25px);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 20px;
    padding: 1.5rem;
    min-width: 220px;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
    z-index: 1010;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    pointer-events: auto;
}

.nav-item-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(5px);
}

.dropdown-link {
    font-size: 13px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: rgba(0, 0, 0, 0.7);
    transition: color 0.2s ease, padding-left 0.2s ease;
    white-space: nowrap;
    text-align: left;
    display: block;
    padding: 0.2rem 0;
}

.dropdown-link:hover {
    color: var(--orange) !important;
    padding-left: 5px;
}

/* Locations dropdown specific layout (Grid columns) */
.dropdown-menu.grid-cols-2 {
    display: grid;
    grid-template-columns: repeat(2, minmax(220px, 1fr));
    gap: 0.75rem 2rem;
    min-width: 520px;
}