/* ═══════════════════════════════════════════
   QUMZ  —  Landing Page Styles
   ═══════════════════════════════════════════ */

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

:root {
    /* palette */
    --bg:        #0a0b10;
    --bg-card:   #12131b;
    --bg-card2:  #181924;
    --surface:   #1e2030;
    --border:    rgba(255,255,255,.06);
    --text:      #e4e6f0;
    --text-dim:  #8b8ea3;
    --accent:    #3b82f6;
    --accent2:   #06b6d4;
    --gradient:  linear-gradient(135deg, var(--accent), var(--accent2));
    --white:     #ffffff;

    /* typography */
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* sizing */
    --nav-h: 72px;
    --radius: 16px;
    --radius-sm: 10px;
    --max-w: 1180px;
}

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

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { display: block; max-width: 100%; }

.container { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

.section { padding: 120px 0; }

/* ── Section tags & titles ──────────────── */
.section-tag {
    text-transform: uppercase;
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: 2.5px;
    color: var(--accent2);
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 56px;
}

/* ═══════════ NAVBAR ═══════════════════════ */
.navbar {
    position: fixed; top: 0; left: 0; width: 100%;
    z-index: 100;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(10,11,16,.65);
    border-bottom: 1px solid var(--border);
    transition: background .3s, box-shadow .3s;
}
.navbar.scrolled {
    background: rgba(10,11,16,.92);
    box-shadow: 0 4px 30px rgba(0,0,0,.35);
}
.nav-inner {
    max-width: var(--max-w); margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 24px; height: var(--nav-h);
}
.logo-img { height: 32px; }
.nav-links { display: flex; gap: 36px; }
.nav-links a {
    font-size: .875rem; font-weight: 500;
    color: var(--text-dim);
    transition: color .25s;
    position: relative;
}
.nav-links a::after {
    content: '';
    position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
    background: var(--gradient);
    transition: width .3s;
}
.nav-links a:hover { color: var(--white); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
    font-size: .85rem; font-weight: 600;
    padding: 10px 24px;
    border-radius: 999px;
    background: var(--gradient);
    color: var(--white);
    transition: transform .25s, box-shadow .25s;
}
.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(59,130,246,.35);
}

/* burger */
.burger { display:none; background:none; border:none; cursor:pointer; flex-direction:column; gap:5px; padding:6px; }
.burger span { display:block; width:24px; height:2px; background:var(--text); border-radius:2px; transition: .3s; }

/* ═══════════ HERO ═════════════════════════ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    text-align: center;
    overflow: hidden;
}
.hero-bg {
    position: absolute; inset: 0;
}
.hero-bg-img {
    width: 100%; height: 100%;
    object-fit: cover;
    filter: brightness(.45) saturate(1.2);
}
.hero-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(10,11,16,.4) 0%, var(--bg) 100%);
}

.hero-content {
    position: relative; z-index: 2;
    max-width: 780px;
    padding: 0 24px;
}

.hero-tag {
    display: inline-block;
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent2);
    margin-bottom: 24px;
    opacity: 0; transform: translateY(20px);
    animation: fadeUp .8s .3s forwards;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    line-height: 1.08;
    margin-bottom: 24px;
    opacity: 0; transform: translateY(30px);
    animation: fadeUp .9s .5s forwards;
}
.accent-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-sub {
    font-size: 1.15rem;
    color: var(--text-dim);
    max-width: 540px;
    margin: 0 auto 40px;
    opacity: 0; transform: translateY(20px);
    animation: fadeUp .9s .7s forwards;
}

.hero-actions {
    display: flex; gap: 16px;
    justify-content: center; flex-wrap: wrap;
    opacity: 0; transform: translateY(20px);
    animation: fadeUp .9s .9s forwards;
}

/* scroll hint */
.hero-scroll-hint {
    position: absolute; bottom: 36px; left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    opacity: 0;
    animation: fadeIn 1s 1.4s forwards;
}
.hero-scroll-hint span {
    display: block;
    width: 24px; height: 40px;
    border: 2px solid rgba(255,255,255,.25);
    border-radius: 50px;
    position: relative;
}
.hero-scroll-hint span::after {
    content: '';
    position: absolute; top: 8px; left: 50%;
    width: 4px; height: 8px;
    background: var(--accent2);
    border-radius: 50px;
    transform: translateX(-50%);
    animation: scrollDot 1.8s ease-in-out infinite;
}

/* ── Buttons ────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    font-family: var(--font);
    font-size: .95rem; font-weight: 600;
    padding: 14px 32px;
    border-radius: 999px;
    cursor: pointer;
    transition: transform .25s, box-shadow .25s, background .25s;
    border: none;
}
.btn-primary {
    background: var(--gradient);
    color: var(--white);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(59,130,246,.35);
}
.btn-outline {
    background: transparent;
    border: 1.5px solid rgba(255,255,255,.18);
    color: var(--text);
}
.btn-outline:hover {
    border-color: var(--accent);
    color: var(--white);
    transform: translateY(-2px);
}
.btn-full { width: 100%; }

/* ═══════════ SERVICES ═════════════════════ */
.services { background: var(--bg); }

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px 32px 36px;
    transition: transform .35s, border-color .35s, box-shadow .35s;
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .4s;
}
.service-card:hover {
    transform: translateY(-6px);
    border-color: rgba(59,130,246,.2);
    box-shadow: 0 16px 48px rgba(0,0,0,.3);
}
.service-card:hover::before { transform: scaleX(1); }

.card-icon {
    width: 52px; height: 52px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 24px;
    color: var(--accent2);
}
.card-icon svg { width: 100%; height: 100%; }

.service-card h3 {
    font-size: 1.25rem; font-weight: 700;
    margin-bottom: 12px;
}
.service-card p {
    font-size: .92rem;
    color: var(--text-dim);
    line-height: 1.7;
    margin-bottom: 20px;
}
.card-tags {
    display: flex; flex-wrap: wrap; gap: 8px;
}
.card-tags li {
    font-size: .72rem; font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 5px 12px;
    background: rgba(59,130,246,.1);
    color: var(--accent);
    border-radius: 999px;
}

/* ═══════════ ABOUT ════════════════════════ */
.about { background: var(--bg-card); }

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.about-desc {
    font-size: 1.05rem;
    color: var(--text-dim);
    line-height: 1.8;
    margin-bottom: 48px;
}

.about-stats {
    display: flex; gap: 44px;
}
.stat { text-align: left; }
.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.stat-suffix {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.stat-label {
    display: block;
    font-size: .8rem;
    color: var(--text-dim);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
}

/* floating cards */
.about-visual {
    position: relative;
    min-height: 320px;
    display: flex; align-items: center; justify-content: center;
}
.about-card-stack { position: relative; width: 100%; max-width: 400px; }

.float-card {
    display: flex; align-items: center; gap: 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 18px 22px;
    font-size: .9rem; font-weight: 500;
    box-shadow: 0 8px 32px rgba(0,0,0,.25);
    transition: transform .5s;
    position: relative;
}
.float-card:hover { transform: translateX(8px); }
.fc-icon { font-size: 1.3rem; }

.fc-1 { margin-bottom: 16px; animation: floatA 6s ease-in-out infinite; }
.fc-2 { margin-bottom: 16px; margin-left: 30px; animation: floatB 7s ease-in-out infinite; }
.fc-3 { margin-left: 15px; animation: floatA 8s ease-in-out infinite; }

/* ═══════════ STACK MARQUEE ════════════════ */
.stack { background: var(--bg); }

.stack-marquee {
    overflow: hidden;
    mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
    padding: 20px 0;
}
.marquee-track {
    display: flex; gap: 20px;
    width: max-content;
    animation: marquee 35s linear infinite;
}
.stack-item {
    flex: none;
    padding: 14px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: .88rem;
    font-weight: 600;
    color: var(--text-dim);
    white-space: nowrap;
    transition: color .3s, border-color .3s;
}
.stack-item:hover {
    color: var(--white);
    border-color: var(--accent);
}

/* ═══════════ CONTACT ══════════════════════ */
.contact { background: var(--bg-card); }

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}
.contact-desc {
    font-size: 1.05rem;
    color: var(--text-dim);
    line-height: 1.7;
    margin-bottom: 32px;
}

.contact-details { display: flex; flex-direction: column; gap: 16px; }
.contact-row {
    display: flex; align-items: center; gap: 12px;
    color: var(--text-dim);
    font-size: .95rem;
}
.contact-row svg { flex-shrink: 0; color: var(--accent2); }

/* form */
.contact-form {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    font-size: .8rem; font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-dim);
    margin-bottom: 8px;
}
.form-group input,
.form-group textarea {
    width: 100%;
    font-family: var(--font);
    font-size: .95rem;
    padding: 14px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    transition: border-color .3s, box-shadow .3s;
    outline: none;
    resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(59,130,246,.15);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(139,142,163,.5);
}

/* ═══════════ FOOTER ═══════════════════════ */
.footer {
    background: var(--bg);
    border-top: 1px solid var(--border);
    padding: 48px 0;
}
.footer-inner {
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 24px;
}
.footer-brand { display: flex; align-items: center; gap: 16px; }
.footer-logo { height: 26px; opacity: .7; }
.footer-brand p { font-size: .82rem; color: var(--text-dim); }
.footer-links { display: flex; gap: 28px; }
.footer-links a {
    font-size: .82rem; color: var(--text-dim);
    transition: color .25s;
}
.footer-links a:hover { color: var(--white); }
.footer-copy { font-size: .78rem; color: var(--text-dim); }

/* ═══════════ ANIMATIONS ═══════════════════ */
@keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    to { opacity: 1; }
}
@keyframes scrollDot {
    0%   { top: 8px; opacity: 1; }
    100% { top: 24px; opacity: 0; }
}
@keyframes floatA {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-10px); }
}
@keyframes floatB {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(8px); }
}
@keyframes marquee {
    0%   { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ═══════════ SCROLL REVEAL ════════════════ */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity .7s, transform .7s;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ═══════════ MOBILE MENU ══════════════════ */
@media (max-width: 768px) {
    .nav-links, .nav-cta { display: none; }
    .burger { display: flex; }

    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: var(--nav-h);
        left: 0; width: 100%;
        background: rgba(10,11,16,.96);
        backdrop-filter: blur(20px);
        padding: 24px 24px 32px;
        gap: 20px;
        border-bottom: 1px solid var(--border);
    }

    .hero-title { font-size: clamp(2rem, 8vw, 3rem); }

    .services-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .about-visual { display: none; }
    .about-stats { gap: 28px; }

    .contact-grid { grid-template-columns: 1fr; gap: 40px; }
    .footer-inner { flex-direction: column; text-align: center; }
    .footer-links { flex-wrap: wrap; justify-content: center; }
}

@media (max-width: 480px) {
    .section { padding: 80px 0; }
    .service-card { padding: 28px 22px 24px; }
    .contact-form { padding: 24px; }
    .about-stats { flex-direction: column; gap: 16px; }
}