/* =========================================================
   INSIGNITY — landing styles
   Palette: midnight petrol · champagne gold · aqua signal
   ========================================================= */

:root {
    --ink:        #0A1315;
    --ink-2:      #0C1A1C;
    --ink-3:      #0F2326;
    --ivory:      #F3EFE6;
    --muted:      #93A6A3;
    --muted-2:    #6E827F;
    --gold:       #E5B567;
    --gold-2:     #F0CD8C;
    --aqua:       #57E6C3;
    --aqua-2:     #8CF2DA;
    --line:       rgba(231, 221, 210, 0.12);
    --line-soft:  rgba(231, 221, 210, 0.07);
    --glass:      rgba(255, 255, 255, 0.045);
    --glass-2:    rgba(255, 255, 255, 0.07);

    --font-kr: "Pretendard", system-ui, -apple-system, "Apple SD Gothic Neo", sans-serif;
    --font-en: "Fraunces", Georgia, serif;
    --font-mono: "Space Mono", ui-monospace, monospace;

    --maxw: 1200px;
    --radius: 22px;
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-kr);
    background: var(--ink);
    color: var(--ivory);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    padding-bottom: 92px; /* room for fixed dock */
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
em { font-style: normal; }

/* ---------- ambient background ---------- */
.aura {
    position: fixed;
    inset: 0;
    z-index: -2;
    background:
        radial-gradient(60% 50% at 78% 8%, rgba(87, 230, 195, 0.16), transparent 60%),
        radial-gradient(50% 45% at 12% 22%, rgba(229, 181, 103, 0.13), transparent 60%),
        radial-gradient(70% 60% at 50% 100%, rgba(87, 230, 195, 0.08), transparent 65%),
        var(--ink);
}
.grain {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    opacity: 0.5;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
}

/* ---------- shared bits ---------- */
.grad {
    background: linear-gradient(100deg, var(--gold-2), var(--aqua));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--aqua-2);
    padding: 7px 14px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--glass);
    backdrop-filter: blur(8px);
}
.eyebrow i { color: var(--gold); }
.eyebrow--dark { color: var(--ink); border-color: rgba(10,19,21,0.18); background: rgba(10,19,21,0.06); }
.eyebrow--dark i { color: var(--ink); }

.h2 {
    font-size: clamp(1.9rem, 4.4vw, 3.2rem);
    line-height: 1.12;
    letter-spacing: -0.02em;
    font-weight: 800;
    margin: 18px 0;
}
.h2--dark { color: var(--ink); }
.lead { color: var(--muted); font-size: 1.04rem; max-width: 46ch; }
.lead--center { margin: 0 auto; text-align: center; }

/* ---------- buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: var(--font-kr);
    font-size: 0.97rem;
    font-weight: 700;
    line-height: 1;
    padding: 15px 24px;
    border-radius: 999px;
    border: 1px solid transparent;
    cursor: pointer;
    white-space: nowrap;
    transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background 0.3s, color 0.3s;
}
.btn i { font-size: 0.95em; }
.btn-icon { width: 21px; height: 21px; border-radius: 6px; object-fit: cover; flex: none; }
.btn:hover { transform: translateY(-2px); }

.btn--gold {
    background: linear-gradient(115deg, var(--gold) 0%, var(--gold-2) 55%, var(--aqua) 165%);
    color: #1a1206;
    box-shadow: 0 10px 30px -10px rgba(229, 181, 103, 0.6);
}
.btn--gold:hover { box-shadow: 0 16px 40px -12px rgba(229, 181, 103, 0.75); }

.btn--line {
    background: transparent;
    color: var(--ivory);
    border-color: var(--line);
}
.btn--line:hover { border-color: var(--aqua); color: var(--aqua-2); }

.btn--ghost {
    background: var(--glass);
    border-color: var(--line);
    color: var(--ivory);
    backdrop-filter: blur(10px);
    padding: 11px 18px;
    font-size: 0.88rem;
}
.btn--ghost:hover { background: var(--glass-2); border-color: var(--aqua); }

.btn--lg { padding: 18px 34px; font-size: 1.05rem; }

/* ---------- nav ---------- */
.nav {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 18px 28px;
    backdrop-filter: blur(14px);
}
.nav::after {
    content: "";
    position: absolute;
    left: 28px; right: 28px; bottom: 0;
    height: 1px;
    background: var(--line-soft);
}
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand__mark {
    display: grid;
    place-items: center;
    width: 36px; height: 36px;
    border-radius: 11px;
    background: linear-gradient(135deg, var(--gold), var(--aqua));
    color: #0c1416;
    font-size: 1rem;
}
.brand__name {
    font-family: var(--font-en);
    font-weight: 600;
    font-size: 1.18rem;
    letter-spacing: 0.04em;
}
.nav__links { display: flex; gap: 30px; }
.nav__links a {
    font-size: 0.92rem;
    color: var(--muted);
    transition: color 0.25s;
    position: relative;
}
.nav__links a:hover { color: var(--ivory); }
.nav__cta { flex: none; }

/* ---------- hero ---------- */
.hero {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: 48px;
    max-width: var(--maxw);
    margin: 0 auto;
    padding: clamp(48px, 8vw, 104px) 28px clamp(40px, 6vw, 72px);
}
.hero__title {
    font-size: clamp(2.5rem, 6.2vw, 4.6rem);
    line-height: 1.04;
    letter-spacing: -0.035em;
    font-weight: 800;
    margin: 22px 0 20px;
}
.hero__title em {
    font-family: var(--font-en);
    font-style: italic;
    font-weight: 500;
    color: var(--gold-2);
    padding: 0 0.04em;
}
.hero__sub { color: var(--muted); font-size: 1.08rem; max-width: 44ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 30px 0 26px; }
.hero__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 22px;
    font-size: 0.86rem;
    color: var(--muted-2);
}
.hero__meta i { color: var(--aqua); margin-right: 6px; }

/* hero stage */
.hero__stage { position: relative; }
.hero__art {
    position: relative;
    border-radius: 28px;
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: 0 40px 90px -40px rgba(0,0,0,0.8), inset 0 0 0 1px rgba(255,255,255,0.03);
    transform-style: preserve-3d;
}
.hero__art img {
    width: 100%;
    aspect-ratio: 7 / 6;
    object-fit: cover;
    filter: saturate(1.05) contrast(1.04);
}
.flowline {
    position: absolute;
    inset: 0;
    width: 100%; height: 100%;
    mix-blend-mode: screen;
}
.flowline path {
    fill: none;
    stroke: url(#g) var(--aqua);
    stroke: var(--aqua);
    stroke-width: 2.4;
    filter: drop-shadow(0 0 6px rgba(87,230,195,0.8));
    stroke-dasharray: 900;
    stroke-dashoffset: 900;
    animation: draw 4.5s var(--ease) forwards 0.5s, pulse 3.2s ease-in-out infinite 5s;
}
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes pulse { 50% { opacity: 0.55; } }

.chip {
    position: absolute;
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 13px 17px;
    border-radius: 15px;
    background: rgba(12, 24, 26, 0.72);
    border: 1px solid var(--line);
    backdrop-filter: blur(14px);
    box-shadow: 0 18px 40px -20px rgba(0,0,0,0.8);
    will-change: transform;
}
.chip__k {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    letter-spacing: 0.16em;
    color: var(--gold);
}
.chip strong { font-size: 0.9rem; font-weight: 700; }
.chip--a { top: 14%; left: -34px; }
.chip--b { bottom: 16%; right: -28px; }
.chip--c { bottom: -22px; left: 16%; }

/* ---------- marquee ---------- */
.marquee {
    overflow: hidden;
    border-block: 1px solid var(--line-soft);
    padding: 18px 0;
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
            mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee__track {
    display: inline-flex;
    align-items: center;
    gap: 26px;
    white-space: nowrap;
    animation: scroll 34s linear infinite;
}
.marquee__track span {
    font-family: var(--font-en);
    font-size: 1.5rem;
    color: var(--muted);
}
.marquee__track i { color: var(--gold); font-style: normal; font-size: 0.8rem; }
@keyframes scroll { to { transform: translateX(-50%); } }

/* ---------- section frame ---------- */
.why, .path, .method, .offer {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: clamp(70px, 9vw, 120px) 28px;
}
.sec-head { text-align: center; max-width: 720px; margin: 0 auto 56px; display: flex; flex-direction: column; align-items: center; gap: 4px; }
.sec-head--left { text-align: left; align-items: flex-start; margin: 0 0 36px; }

/* ---------- why ---------- */
.why {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    align-items: center;
    gap: 64px;
}
.why__media { position: relative; }
.why__media img {
    width: 100%;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    aspect-ratio: 4 / 5;
    object-fit: cover;
    filter: saturate(1.04);
    -webkit-mask-image: linear-gradient(180deg, #000 80%, transparent 130%);
}
.why__badge {
    position: absolute;
    right: -22px;
    bottom: 30px;
    display: flex;
    align-items: center;
    gap: 13px;
    padding: 15px 18px;
    border-radius: 16px;
    background: rgba(12, 24, 26, 0.82);
    border: 1px solid var(--line);
    backdrop-filter: blur(14px);
    box-shadow: 0 20px 50px -22px rgba(0,0,0,0.85);
}
.why__badge i { font-size: 1.3rem; color: var(--aqua); }
.why__badge strong { display: block; font-size: 0.95rem; }
.why__badge span { font-size: 0.8rem; color: var(--muted); }

.why__text .h2 { margin-top: 16px; }
.why__list { list-style: none; margin-top: 30px; display: flex; flex-direction: column; gap: 18px; }
.why__list li { display: flex; gap: 16px; align-items: flex-start; }
.why__list i {
    flex: none;
    display: grid;
    place-items: center;
    width: 42px; height: 42px;
    border-radius: 12px;
    background: var(--glass);
    border: 1px solid var(--line);
    color: var(--gold);
    font-size: 1.05rem;
}
.why__list strong { display: block; font-size: 1.02rem; }
.why__list span { color: var(--muted); font-size: 0.92rem; }

/* ---------- path / steps ---------- */
.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}
.step {
    position: relative;
    padding: 34px 28px 30px;
    border-radius: var(--radius);
    background: var(--glass);
    border: 1px solid var(--line);
    overflow: hidden;
    transition: transform 0.4s var(--ease), border-color 0.4s, background 0.4s;
}
.step::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 3px;
    background: linear-gradient(90deg, var(--gold), var(--aqua));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s var(--ease);
}
.step:hover { transform: translateY(-6px); border-color: rgba(87,230,195,0.4); background: var(--glass-2); }
.step:hover::before { transform: scaleX(1); }
.step__no {
    font-family: var(--font-en);
    font-size: 3.2rem;
    font-weight: 600;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 1.4px rgba(229,181,103,0.55);
    margin-bottom: 16px;
}
.step__title { font-size: 1.22rem; font-weight: 800; margin-bottom: 10px; }
.step p { color: var(--muted); font-size: 0.95rem; }
.step__tag {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    margin-top: 18px;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.1em;
    color: var(--aqua-2);
    padding: 5px 11px;
    border: 1px solid var(--line);
    border-radius: 999px;
}

/* ---------- method ---------- */
.method {
    display: grid;
    grid-template-columns: 0.82fr 1.18fr;
    align-items: center;
    gap: 56px;
}
.method__aside { position: sticky; top: 90px; }
.method__aside img {
    width: 100%;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    aspect-ratio: 1 / 1;
    object-fit: cover;
    box-shadow: 0 30px 70px -36px rgba(0,0,0,0.8);
}
.feat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}
.feat {
    padding: 22px 20px;
    border-radius: 16px;
    background: var(--glass);
    border: 1px solid var(--line);
    transition: transform 0.35s var(--ease), border-color 0.35s, background 0.35s;
}
.feat:hover { transform: translateY(-4px); border-color: rgba(229,181,103,0.4); background: var(--glass-2); }
.feat i {
    font-size: 1.25rem;
    color: var(--aqua);
    margin-bottom: 13px;
    display: inline-block;
}
.feat h4 { font-size: 1.02rem; font-weight: 700; margin-bottom: 5px; }
.feat p { color: var(--muted); font-size: 0.86rem; line-height: 1.5; }

/* ---------- offer ---------- */
.offer__card {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 30px;
    align-items: center;
    padding: clamp(34px, 5vw, 56px);
    border-radius: 30px;
    background:
        radial-gradient(120% 120% at 0% 0%, rgba(240,205,140,0.92), transparent 55%),
        linear-gradient(135deg, var(--gold) 0%, var(--gold-2) 48%, var(--aqua) 130%);
    color: var(--ink);
    box-shadow: 0 40px 90px -44px rgba(229,181,103,0.6);
}
.offer__note { color: rgba(10,19,21,0.7); margin: 14px 0 26px; font-size: 0.98rem; }
.offer__card .btn--gold {
    background: var(--ink);
    color: var(--ivory);
    box-shadow: 0 14px 34px -14px rgba(10,19,21,0.7);
}
.offer__list { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.offer__list li {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    border-radius: 16px;
    background: rgba(10, 19, 21, 0.9);
    color: var(--ivory);
    border: 1px solid rgba(255,255,255,0.06);
}
.offer__ico {
    flex: none;
    display: grid;
    place-items: center;
    width: 46px; height: 46px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--gold), var(--aqua));
    color: var(--ink);
    font-size: 1.15rem;
}
.offer__list strong { display: block; font-size: 1rem; }
.offer__list span { color: var(--muted); font-size: 0.86rem; }

/* ---------- cta band ---------- */
.cta {
    position: relative;
    overflow: hidden;
    margin-top: 30px;
}
.cta__bg { position: absolute; inset: 0; z-index: 0; }
.cta__bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.32; }
.cta::after {
    content: "";
    position: absolute; inset: 0; z-index: 1;
    background: linear-gradient(180deg, var(--ink) 0%, rgba(10,19,21,0.55) 45%, var(--ink) 100%);
}
.cta__inner {
    position: relative;
    z-index: 2;
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
    padding: clamp(80px, 11vw, 140px) 28px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
}
.cta__title {
    font-size: clamp(2rem, 5vw, 3.4rem);
    line-height: 1.1;
    letter-spacing: -0.025em;
    font-weight: 800;
}
.cta__sub { color: var(--muted); max-width: 40ch; }
.cta .btn--lg { margin-top: 8px; }
.cta__fine { font-size: 0.76rem; color: var(--muted-2); max-width: 52ch; margin-top: 12px; line-height: 1.6; }

/* ---------- footer ---------- */
.foot {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 70px 28px 40px;
    border-top: 1px solid var(--line);
}
.foot__top { display: flex; flex-direction: column; gap: 14px; max-width: 560px; }
.foot__brand { display: inline-flex; align-items: center; gap: 11px; }
.foot__desc { color: var(--muted); font-size: 0.9rem; }
.foot__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin: 40px 0 30px;
    padding: 28px 0;
    border-top: 1px solid var(--line-soft);
    border-bottom: 1px solid var(--line-soft);
}
.foot__grid > div { display: flex; flex-direction: column; gap: 5px; }
.foot__k {
    font-family: var(--font-mono);
    font-size: 0.64rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted-2);
}
.foot__grid span:last-child { font-size: 0.9rem; }
.foot__bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    font-size: 0.82rem;
    color: var(--muted-2);
}
.foot__links { display: flex; align-items: center; gap: 12px; }
.foot__links button {
    background: none;
    border: none;
    cursor: pointer;
    font: inherit;
    color: var(--muted);
    transition: color 0.25s;
}
.foot__links button:hover { color: var(--aqua-2); }
.foot__links .dot { color: var(--line); }

/* ---------- fixed dock ---------- */
.dock {
    position: fixed;
    left: 0; right: 0; bottom: 0;
    z-index: 60;
    display: flex;
    justify-content: center;
    padding: 14px 16px calc(14px + env(safe-area-inset-bottom));
    background: linear-gradient(180deg, transparent, rgba(8,15,16,0.92) 38%);
    pointer-events: none;
}
.dock__btn {
    pointer-events: auto;
    width: min(520px, 100%);
    box-shadow: 0 14px 40px -10px rgba(229,181,103,0.55);
}

/* ---------- modal ---------- */
.modal { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 20px; }
.modal[hidden] { display: none; }
.modal__backdrop { position: absolute; inset: 0; background: rgba(4,9,10,0.72); backdrop-filter: blur(6px); }
.modal__panel {
    position: relative;
    width: min(640px, 100%);
    max-height: 82vh;
    overflow-y: auto;
    background: var(--ink-2);
    border: 1px solid var(--line);
    border-radius: 22px;
    padding: 34px 32px;
    box-shadow: 0 50px 120px -40px rgba(0,0,0,0.9);
    animation: pop 0.4s var(--ease);
}
@keyframes pop { from { opacity: 0; transform: translateY(16px) scale(0.98); } }
.modal__x {
    position: absolute;
    top: 18px; right: 18px;
    width: 38px; height: 38px;
    border-radius: 10px;
    background: var(--glass);
    border: 1px solid var(--line);
    color: var(--ivory);
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.25s;
}
.modal__x:hover { background: var(--glass-2); }
.modal__title { font-size: 1.4rem; font-weight: 800; margin-bottom: 18px; padding-right: 40px; }
.modal__body { color: var(--muted); font-size: 0.92rem; line-height: 1.75; }
.modal__body h4 { color: var(--ivory); font-size: 1rem; margin: 18px 0 6px; }
.modal__body p { margin-bottom: 10px; }

/* ---------- reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
    .hero { grid-template-columns: 1fr; gap: 56px; }
    .hero__stage { order: -1; max-width: 460px; margin: 0 auto; width: 100%; }
    .why { grid-template-columns: 1fr; gap: 40px; }
    .why__media { max-width: 440px; }
    .method { grid-template-columns: 1fr; gap: 40px; }
    .method__aside { position: static; max-width: 460px; }
    .offer__card { grid-template-columns: 1fr; }
    .nav__links { display: none; }
}
@media (max-width: 680px) {
    .why, .path, .method, .offer { padding: 56px 18px; }
    .hero { padding: 40px 18px 30px; gap: 40px; }
    .hero__meta { gap: 8px 14px; font-size: 0.8rem; }
    .sec-head { margin-bottom: 34px; }

    /* keep multiple items per row, compact */
    .steps { grid-template-columns: 1fr 1fr; gap: 12px; }
    .step { padding: 22px 18px 20px; }
    .step:first-child { grid-column: 1 / -1; }
    .step__no { font-size: 2.4rem; margin-bottom: 10px; }
    .step__title { font-size: 1.08rem; }
    .step p { font-size: 0.88rem; }

    .feat-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
    .feat { padding: 16px 14px; }
    .feat i { margin-bottom: 9px; font-size: 1.1rem; }
    .feat h4 { font-size: 0.92rem; }
    .feat p { font-size: 0.8rem; }

    .why { gap: 34px; }
    .why__list { gap: 14px; }
    .offer__list li { padding: 14px 15px; gap: 13px; }
    .offer__ico { width: 40px; height: 40px; font-size: 1rem; }

    .foot__grid { grid-template-columns: 1fr 1fr; gap: 16px; margin: 30px 0 24px; padding: 22px 0; }
    .why__badge { right: 10px; left: 10px; bottom: 14px; }
    .chip--a { left: -10px; }
    .chip--b { right: -8px; }
    .marquee__track span { font-size: 1.2rem; }
    .foot__bar { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 380px) {
    .btn { font-size: 0.9rem; padding: 14px 18px; }
}

/* ---------- motion preference ---------- */
@media (prefers-reduced-motion: reduce) {
    * { animation: none !important; scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; transition: none; }
}