/* ============================================================
   CarlteQ — Global Stylesheet
   Shared design system: dark base, gold accent, Jost typeface
   ============================================================ */

:root {
    --bg-base: #030305;
    --bg-surface: #0a0a0c;
    --gold-light: #f9df9f;
    --gold-main: #d4AF37;
    --gold-dark: #aa7f1d;
    --text-main: #ffffff;
    --text-muted: #CEC3C5;
    --text-faint: #555555;
    --font-main: 'Jost', sans-serif;
    --transition-smooth: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    --border-soft: 1px solid rgba(255, 255, 255, 0.05);
    --border-gold: rgba(212, 175, 55, 0.3);
}

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

html { scroll-behavior: smooth; }

body {
    background-color: var(--bg-base);
    color: var(--text-main);
    font-family: var(--font-main);
    overflow-x: hidden;
    line-height: 1.7;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; }

::selection { background: var(--gold-main); color: #000; }

/* ---------- Utilities ---------- */
.container { max-width: 1300px; margin: 0 auto; padding: 0 4rem; }
.section-padding { padding: 8rem 0; }

.gold-gradient {
    background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold-main) 50%, var(--gold-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title { font-size: 3.5rem; line-height: 1.1; margin-bottom: 2rem; }
.section-subtitle { color: var(--text-muted); font-size: 1.15rem; max-width: 640px; }

.center { text-align: center; }
.center .section-subtitle { margin: 0 auto; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(40px); transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.active { opacity: 1; transform: translate(0); }

/* ---------- Navigation ---------- */
nav {
    position: fixed; top: 0; width: 100%;
    padding: 1.5rem 4rem;
    display: flex; justify-content: space-between; align-items: center;
    z-index: 100;
    transition: var(--transition-smooth);
}

.nav-scrolled {
    padding: 1rem 4rem;
    background: rgba(3, 3, 5, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: var(--border-soft);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.logo {
    font-size: 1.8rem; font-weight: 800; letter-spacing: 1px;
    text-transform: uppercase; color: #fff;
}
.logo img { display: block; height: 2.1rem; width: auto; }

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

.nav-links a {
    color: var(--text-main);
    font-size: 0.95rem; font-weight: 500;
    text-transform: uppercase; letter-spacing: 1px;
    position: relative;
}

.nav-links > a:not(.btn-primary)::after,
.dropdown > .dropdown-toggle::after {
    content: '';
    position: absolute; bottom: -5px; left: 0;
    width: 0%; height: 2px; background: var(--gold-main);
    transition: width 0.3s ease;
}

.nav-links > a:not(.btn-primary):hover::after,
.dropdown:hover > .dropdown-toggle::after { width: 100%; }

.nav-links a:hover { color: var(--gold-main); }

.nav-links .active { color: var(--gold-main); }

/* Dropdown */
.dropdown { position: relative; }
.dropdown > .dropdown-toggle { cursor: pointer; }
.dropdown-content {
    display: none; position: absolute; top: 100%; left: 0;
    background: var(--bg-surface); min-width: 250px;
    border: var(--border-soft); border-radius: 8px; overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5); padding: 0.5rem 0;
}
.dropdown:hover .dropdown-content,
.dropdown:focus-within .dropdown-content { display: block; }
.dropdown-content a { display: block; padding: 1rem 1.5rem; border-bottom: var(--border-soft); }
.dropdown-content a:hover { background: rgba(212, 175, 55, 0.1); color: var(--gold-main); }
.dropdown-content a.active { color: var(--gold-main); }

/* Primary button */
.btn-primary {
    background: var(--gold-main); color: #000 !important;
    padding: 0.75rem 1.5rem; border-radius: 4px; font-weight: 600;
    transition: var(--transition-smooth);
}
.btn-primary:hover { background: #f0c950; color: #000 !important; transform: translateY(-2px); }

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    flex-direction: column; gap: 6px;
    background: none; border: none; cursor: pointer;
    padding: 0.5rem; z-index: 110;
}
.nav-toggle span {
    display: block; width: 26px; height: 2px;
    background: var(--gold-main); transition: var(--transition-smooth);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ---------- Hero (index) ---------- */
.hero {
    height: 100vh; min-height: 600px;
    display: flex; align-items: center; justify-content: center;
    position: relative; overflow: hidden; text-align: center;
}
.hero-bg {
    position: absolute; inset: 0;
    background: radial-gradient(circle at center, rgba(212, 175, 55, 0.08) 0%, var(--bg-base) 70%);
}
.hero-content { position: relative; z-index: 2; max-width: 1000px; padding: 0 2rem; }
.hero h1 {
    font-size: clamp(2.5rem, 5vw, 5.5rem);
    font-weight: 800; line-height: 1.1;
    text-transform: uppercase; margin-bottom: 1.5rem;
}
.hero p { font-size: 1.25rem; color: var(--text-muted); max-width: 800px; margin: 0 auto; font-weight: 300; }

/* ---------- Inner page header ---------- */
.page-header {
    padding: 12rem 0 6rem;
    background: var(--bg-surface);
    text-align: center;
    border-bottom: var(--border-soft);
}
.page-header .eyebrow {
    color: var(--gold-main); text-transform: uppercase;
    letter-spacing: 2px; font-size: 0.9rem; margin-bottom: 1rem;
}
.page-header h1 { font-size: clamp(2.75rem, 5vw, 4.5rem); line-height: 1.1; margin-bottom: 1.5rem; }
.page-header .lead {
    color: var(--text-muted); font-size: 1.2rem;
    max-width: 600px; margin: 0 auto;
}

/* ---------- About / story (index) ---------- */
.story-grid, .culture-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center; }
.story-quote {
    border-left: 3px solid var(--gold-main);
    padding-left: 2rem; font-size: 1.25rem; font-style: italic;
    margin-bottom: 2rem;
}
.img-placeholder {
    width: 100%; height: 500px; border-radius: 12px;
    object-fit: cover; filter: grayscale(100%);
    border: var(--border-soft); transition: var(--transition-smooth);
}
.img-placeholder:hover { filter: grayscale(0%); }

/* ---------- Cards ---------- */
.glass-card {
    background: rgba(10, 10, 12, 0.6);
    border: var(--border-soft);
    padding: 4rem; border-radius: 16px; position: relative;
}
.glass-card h3 { font-size: 2.5rem; margin-bottom: 1.5rem; color: var(--gold-main); }

.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2.5rem; }
.team-card {
    background: var(--bg-surface);
    border: var(--border-soft); border-radius: 12px;
    padding: 3rem 2rem; text-align: center;
    transition: var(--transition-smooth);
}
.team-card:hover { transform: translateY(-5px); border-color: var(--border-gold); }
.team-avatar {
    width: 120px; height: 120px; margin: 0 auto 1.5rem;
    border-radius: 50%; overflow: hidden;
    border: 2px solid rgba(212, 175, 55, 0.2);
}
.team-avatar img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(100%); transition: var(--transition-smooth); }
.team-card:hover .team-avatar img { filter: grayscale(0%); }
.team-card h3 { font-size: 1.5rem; margin-bottom: 0.5rem; }
.team-role {
    color: var(--gold-main); font-size: 0.9rem;
    text-transform: uppercase; letter-spacing: 1px;
}

/* ---------- Service pages ---------- */
.service-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.service-text h2 { font-size: 2.5rem; margin-bottom: 1.5rem; }
.service-text p { color: var(--text-muted); font-size: 1.1rem; margin-bottom: 1.5rem; }
.service-list { list-style: none; margin-top: 2rem; }
.service-list li {
    margin-bottom: 1rem; font-size: 1.1rem;
    display: flex; align-items: center; gap: 1rem; color: var(--text-muted);
}
.service-list li::before { content: '\25A0'; color: var(--gold-main); font-size: 0.8rem; flex-shrink: 0; }

.service-img {
    width: 100%; border-radius: 12px;
    border: var(--border-soft);
    filter: grayscale(100%); transition: var(--transition-smooth);
}
.service-img:hover { filter: grayscale(0%); border-color: var(--border-gold); }

.tech-strip {
    background: var(--bg-surface);
    padding: 4rem 0;
    border-top: var(--border-soft);
}
.tech-strip .container { text-align: center; }
.tech-strip h4 {
    margin-bottom: 2rem; color: var(--text-muted);
    text-transform: uppercase; letter-spacing: 2px; font-size: 1rem;
}
.tech-strip-items {
    display: flex; justify-content: center; gap: 2rem;
    flex-wrap: wrap; font-size: 1.25rem; font-weight: 600; align-items: center;
}
.tech-strip-items .sep { color: rgba(255, 255, 255, 0.2); }

/* ---------- Contact page ---------- */
.contact-section {
    padding: 12rem 0 8rem;
    display: grid; grid-template-columns: 1fr 1fr; gap: 6rem; align-items: start;
}
.contact-info h1 { font-size: clamp(2.5rem, 4vw, 4rem); line-height: 1.1; margin-bottom: 1.5rem; }
.contact-info > p { color: var(--text-muted); font-size: 1.2rem; margin-bottom: 3rem; }
.info-block { margin-bottom: 2rem; }
.info-block h4 {
    color: var(--gold-main); text-transform: uppercase;
    letter-spacing: 2px; font-size: 0.85rem; margin-bottom: 0.5rem;
}
.info-block p { font-size: 1.2rem; color: var(--text-main); }

.contact-form {
    background: var(--bg-surface);
    padding: 4rem; border-radius: 12px;
    border: var(--border-soft);
}
.form-group { margin-bottom: 2rem; }
.form-group label {
    display: block; margin-bottom: 0.5rem;
    font-size: 0.9rem; color: var(--text-muted);
}
.form-control {
    width: 100%; background: transparent; border: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff; font-family: inherit; font-size: 1.1rem;
    padding: 0.5rem 0; transition: all 0.3s;
}
.form-control:focus { outline: none; border-bottom-color: var(--gold-main); }
.form-control option { background: var(--bg-surface); color: #fff; }
textarea.form-control { resize: vertical; min-height: 100px; }

.btn-submit {
    width: 100%; background: var(--gold-main); color: #000;
    border: none; padding: 1rem; font-size: 1.1rem; font-weight: 600;
    font-family: inherit; border-radius: 4px; cursor: pointer;
    transition: var(--transition-smooth); margin-top: 1rem;
}
.btn-submit:hover { background: #f0c950; transform: translateY(-2px); }

/* ---------- Portfolio ---------- */
.filter-bar { display: flex; justify-content: center; flex-wrap: wrap; gap: 1rem; margin-bottom: 4rem; }
.filter-btn {
    background: transparent; color: var(--text-muted);
    border: 1px solid var(--border-soft); padding: 0.6rem 1.5rem;
    border-radius: 999px; font-family: inherit; font-size: 0.9rem;
    text-transform: uppercase; letter-spacing: 1px; cursor: pointer;
    transition: var(--transition-smooth);
}
.filter-btn:hover { color: var(--gold-main); border-color: var(--border-gold); }
.filter-btn.active { background: var(--gold-main); color: #000; border-color: var(--gold-main); }

.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.5rem; }
.project-card {
    background: var(--bg-surface);
    border: var(--border-soft); border-radius: 12px; overflow: hidden;
    transition: var(--transition-smooth);
    display: flex; flex-direction: column;
}
.project-card:hover { transform: translateY(-6px); border-color: var(--border-gold); }
.project-img { position: relative; height: 240px; overflow: hidden; }
.project-img img {
    width: 100%; height: 100%; object-fit: cover;
    filter: grayscale(100%); transition: var(--transition-smooth);
}
.project-card:hover .project-img img { filter: grayscale(0%); transform: scale(1.05); }
.project-tag {
    position: absolute; top: 1rem; left: 1rem;
    background: rgba(3, 3, 5, 0.85); color: var(--gold-main);
    font-size: 0.75rem; text-transform: uppercase; letter-spacing: 1.5px;
    padding: 0.35rem 0.9rem; border-radius: 999px;
    border: 1px solid var(--border-gold);
}
.project-info { padding: 1.75rem; flex: 1; }
.project-info h3 { font-size: 1.35rem; margin-bottom: 0.5rem; }
.project-info p { color: var(--text-muted); font-size: 0.95rem; }

.portfolio-cta { text-align: center; margin-top: 5rem; }

/* ---------- Footer ---------- */
footer {
    background: #010101;
    padding: 5rem 0 2rem;
    border-top: 1px solid var(--border-gold);
}
.footer-inner {
    display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: 3rem; align-items: start;
}
.footer-logo { height: 2.5rem; width: auto; margin-bottom: 0.75rem; }
.footer-brand p { color: var(--text-muted); font-size: 1rem; }
.footer-socials { display: flex; gap: 0.9rem; margin-top: 1.5rem; }
.footer-socials a {
    display: inline-flex; align-items: center; justify-content: center;
    width: 40px; height: 40px; border-radius: 50%;
    border: 1px solid var(--border-soft); color: var(--text-muted);
    transition: var(--transition-smooth);
}
.footer-socials a:hover { color: var(--gold-main); border-color: var(--border-gold); transform: translateY(-2px); }
.footer-socials svg { width: 18px; height: 18px; fill: currentColor; }
.footer-col h4 {
    color: var(--gold-main); text-transform: uppercase;
    letter-spacing: 2px; font-size: 0.85rem; margin-bottom: 1.25rem;
}
.footer-col a, .footer-col span {
    display: block; color: var(--text-muted);
    font-size: 1rem; margin-bottom: 0.75rem; transition: color 0.3s;
}
.footer-col a:hover { color: var(--gold-main); }
.footer-copy {
    text-align: center; margin-top: 3rem;
    padding-top: 2rem; border-top: var(--border-soft);
    color: var(--text-faint); font-size: 0.9rem;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
    .container, nav { padding-left: 2rem; padding-right: 2rem; }
    .nav-links { gap: 2rem; }
    .section-padding { padding: 6rem 0; }
    .story-grid, .culture-grid, .service-layout { gap: 3rem; }
}

@media (max-width: 900px) {
    /* Mobile nav */
    .nav-toggle { display: flex; }
    .nav-links {
        position: fixed; top: 0; right: -100%;
        width: min(320px, 80vw); height: 100vh;
        flex-direction: column; align-items: flex-start;
        background: var(--bg-surface);
        padding: 6rem 2rem; gap: 1.75rem;
        border-left: var(--border-soft);
        transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        overflow-y: auto;
    }
    .nav-links.open { right: 0; }
    .nav-links .btn-primary { color: #000 !important; }

    .dropdown { width: 100%; }
    .dropdown-content {
        position: static; display: none;
        background: transparent; border: none;
        box-shadow: none; padding: 0 0 0 1rem; min-width: 0;
    }
    .dropdown-content a { padding: 0.75rem 1rem; }
    .dropdown.open .dropdown-content { display: block; }

    .story-grid, .culture-grid, .service-layout, .contact-section { grid-template-columns: 1fr; }
    .contact-section { gap: 4rem; }
    .img-placeholder { height: 320px; }
    .glass-card { padding: 2.5rem; }
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1fr 1fr; gap: 2.5rem; }
}

@media (max-width: 600px) {
    .container, nav { padding-left: 1.25rem; padding-right: 1.25rem; }
    .section-title { font-size: 2.4rem; }
    .section-padding { padding: 5rem 0; }
    .page-header { padding: 10rem 0 4rem; }
    .contact-form { padding: 2.5rem; }
    .team-grid { grid-template-columns: 1fr; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr; }
}