/* 코리아춘천옥 NFT — 공통 디자인 토큰 (index.php 기준) */
:root {
    --white:   #ffffff;
    --bg:      #f4f6fb;
    --dp-blue: #0b1f4f;
    --md-blue: #1a3a8f;
    --lt-blue: #dce8ff;
    --pink:    #ff2d78;
    --pk-lt:   #fff0f5;
    --pk-mid:  #ffd6e8;
    --text:    #0b1f4f;
    --muted:   #6b7a99;
    --border:  rgba(11,31,79,.10);
    --ok:      #059669;
    --ok-bg:   #ecfdf5;
    --err:     #be123c;
    --err-bg:  #fff1f2;
    --sh-sm:   0 1px 4px rgba(11,31,79,.08), 0 1px 2px rgba(11,31,79,.04);
    --sh-md:   0 4px 16px rgba(11,31,79,.10), 0 2px 6px rgba(11,31,79,.06);
    --sh-lg:   0 12px 32px rgba(11,31,79,.13), 0 4px 8px rgba(11,31,79,.07);
    --sh-pink: 0 4px 20px rgba(255,45,120,.25);
    --sh-blue: 0 4px 20px rgba(26,58,143,.25);
    --r-sm:  8px;
    --r-md:  14px;
    --r-lg:  20px;
    --r-xl:  28px;
    --sp-xs: clamp(6px,  1.5vw, 10px);
    --sp-sm: clamp(10px, 2vw,   16px);
    --sp-md: clamp(14px, 3vw,   24px);
    --sp-lg: clamp(20px, 4vw,   36px);
    --fs-xs: clamp(10px, 1.8vw, 12px);
    --fs-sm: clamp(11px, 2vw,   13px);
    --fs-md: clamp(13px, 2.5vw, 15px);
    --nav-h: 58px;
    --safe-b: env(safe-area-inset-bottom, 0px);
    --safe-t: env(safe-area-inset-top, 0px);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Malgun Gothic', 'Apple SD Gothic Neo', -apple-system, sans-serif;
    font-size: var(--fs-sm);
    line-height: 1.6;
    padding-top: calc(var(--nav-h) + var(--safe-t));
    padding-bottom: var(--sp-lg);
    padding-left:  max(var(--sp-sm), env(safe-area-inset-left,  0px));
    padding-right: max(var(--sp-sm), env(safe-area-inset-right, 0px));
    min-height: 100vh;
}

a { color: inherit; }

.top-nav {
    position: fixed; top: 0; left: 0; right: 0;
    height: calc(var(--nav-h) + var(--safe-t));
    background: rgba(255,255,255,.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--sh-sm);
    display: flex; align-items: center; justify-content: space-between;
    padding: var(--safe-t) var(--sp-md) 0;
    z-index: 1200;
}
.nav-logo {
    display: flex; align-items: center; gap: 8px;
    font-size: var(--fs-md); font-weight: 800;
    background: linear-gradient(90deg, var(--dp-blue), var(--pink));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text; white-space: nowrap;
    text-decoration: none;
    position: relative;
    z-index: 1;
}
.nav-menu {
    position: fixed;
    top: 0;
    right: 0;
    height: calc(var(--nav-h) + var(--safe-t));
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
    max-width: calc(100% - 180px);
    padding: var(--safe-t) var(--sp-md) 0 8px;
    z-index: 1201;
    background: transparent;
}
.nav-links { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; }
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a {
    flex-shrink: 0; text-decoration: none;
    font-size: var(--fs-xs); font-weight: 600;
    color: var(--muted); padding: 5px 13px;
    border-radius: 20px; transition: .2s; white-space: nowrap;
}
.nav-links a:hover { background: var(--lt-blue); color: var(--md-blue); }
.nav-links a.active,
.nav-auth a.active {
    background: linear-gradient(90deg, var(--dp-blue), var(--pink));
    color: #fff;
    -webkit-text-fill-color: #fff;
}
.nav-auth { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }
.nav-auth a, .nav-auth span {
    text-decoration: none; font-size: var(--fs-xs); font-weight: 700;
    color: var(--muted); padding: 6px 13px; border-radius: 20px;
    white-space: nowrap; transition: .2s;
}
.nav-auth a:hover { background: var(--lt-blue); color: var(--md-blue); }
.nav-auth a.nav-cta {
    background: linear-gradient(90deg, var(--dp-blue), var(--pink));
    color: #fff;
}
.nav-auth a.nav-cta:hover { opacity: .92; color: #fff; }
.nav-user { color: var(--dp-blue) !important; }
.nav-user.active { color: #fff !important; }

.nav-toggle {
    display: none;
    width: 42px; height: 42px;
    border: 1px solid var(--border);
    background: var(--white);
    border-radius: 12px;
    align-items: center; justify-content: center;
    flex-direction: column; gap: 5px;
    cursor: pointer; padding: 0;
    position: relative;
    z-index: 1202;
    flex-shrink: 0;
}
.nav-toggle span {
    display: block; width: 18px; height: 2px;
    background: var(--dp-blue); border-radius: 2px;
    transition: transform .2s, opacity .2s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(11,31,79,.45);
    z-index: 1180;
}
.nav-backdrop.show { display: block; }
body.nav-open { overflow: hidden; }

@media (max-width: 1280px) {
    .nav-toggle { display: flex; }
    .nav-menu {
        display: none;
        position: fixed;
        top: calc(var(--nav-h) + var(--safe-t));
        right: 0;
        bottom: 0;
        left: auto;
        height: auto;
        width: min(86vw, 340px);
        max-width: 86vw;
        background: #fff;
        box-shadow: var(--sh-lg);
        z-index: 1190;
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        gap: 0;
        overflow-x: hidden;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        padding: 12px 12px calc(24px + var(--safe-b));
    }
    .nav-menu.open { display: flex; }
    .nav-menu .nav-links,
    .nav-menu .nav-auth {
        display: flex;
        flex-direction: column;
        overflow: visible;
        gap: 4px;
        width: 100%;
    }
    .nav-menu .nav-auth {
        margin-top: 10px;
        padding-top: 10px;
        border-top: 1px solid var(--border);
    }
    .nav-menu .nav-links a,
    .nav-menu .nav-auth a {
        width: 100%;
        padding: 12px 14px;
        font-size: 15px;
        border-radius: 12px;
        text-align: left;
        color: var(--dp-blue);
        -webkit-text-fill-color: var(--dp-blue);
    }
    .nav-menu .nav-links a.active,
    .nav-menu .nav-auth a.active {
        color: #fff;
        -webkit-text-fill-color: #fff;
    }
}

.wrap { max-width: 1100px; margin: 0 auto; padding-top: var(--sp-md); }

.auth-shell {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--r-xl);
    box-shadow: var(--sh-lg);
    overflow: hidden;
    min-height: 560px;
}
@media (max-width: 840px) {
    .auth-shell { grid-template-columns: 1fr; }
}

.auth-brand {
    position: relative; overflow: hidden;
    background: linear-gradient(135deg, var(--dp-blue) 0%, #1a2a6c 45%, #b21f66 100%);
    padding: clamp(28px, 5vw, 48px) var(--sp-lg);
    color: #fff;
    display: flex; flex-direction: column; justify-content: center;
}
.auth-brand::before {
    content: '';
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(255,45,120,.35) 0%, transparent 55%),
        radial-gradient(ellipse at 80% 20%, rgba(26,58,143,.6) 0%, transparent 50%);
}
.auth-brand::after {
    content: '';
    position: absolute;
    width: 280px; height: 280px;
    border-radius: 50%;
    border: 50px solid rgba(255,255,255,.04);
    top: -90px; right: -70px;
}
.auth-brand-inner { position: relative; z-index: 1; }
.auth-brand h1 {
    font-size: clamp(22px, 4vw, 30px); font-weight: 900;
    letter-spacing: -.4px; margin-bottom: 10px;
}
.auth-brand h1 em { font-style: normal; color: #ff8cb8; }
.auth-brand p { font-size: var(--fs-xs); color: rgba(255,255,255,.7); margin-bottom: 18px; }
.hero-badges { display: flex; gap: 8px; flex-wrap: wrap; }
.hero-badge {
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.2);
    color: rgba(255,255,255,.9);
    border-radius: 20px; font-size: 11px; font-weight: 600;
    padding: 4px 12px; backdrop-filter: blur(4px);
}

.bin-visual {
    margin-top: 28px;
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.14);
    border-radius: var(--r-md);
    padding: 18px 16px 16px;
    text-align: center;
}
.bin-node {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 72px; height: 36px; padding: 0 12px;
    border-radius: 20px; font-size: 12px; font-weight: 700;
}
.bin-node.me {
    background: #fff; color: var(--dp-blue);
    box-shadow: 0 4px 16px rgba(0,0,0,.15);
}
.bin-legs {
    display: flex; justify-content: space-around;
    margin-top: 28px; position: relative;
}
.bin-legs::before {
    content: '';
    position: absolute; top: -22px; left: 25%; right: 25%;
    height: 22px;
    border: 2px solid rgba(255,255,255,.35);
    border-bottom: none; border-radius: 10px 10px 0 0;
}
.bin-node.left  { background: rgba(220,232,255,.95); color: var(--md-blue); }
.bin-node.right { background: rgba(255,240,245,.95); color: #9d174d; }
.bin-caption {
    margin-top: 14px; font-size: 11px;
    color: rgba(255,255,255,.72); line-height: 1.6;
}

.auth-form-wrap {
    padding: clamp(24px, 4vw, 40px) clamp(20px, 4vw, 40px);
    display: flex; flex-direction: column; justify-content: center;
}
.auth-form-wrap h2 {
    font-size: clamp(18px, 3vw, 22px); font-weight: 800;
    color: var(--dp-blue); margin-bottom: 6px;
}
.auth-form-wrap .sub {
    font-size: var(--fs-xs); color: var(--muted); margin-bottom: 20px;
}

.alert {
    border-radius: var(--r-sm);
    padding: 10px 14px;
    font-size: var(--fs-xs);
    margin-bottom: 14px;
    line-height: 1.6;
}
.alert ul { margin: 4px 0 0 16px; }
.alert-error { background: var(--err-bg); color: var(--err); border: 1px solid #fecdd3; }
.alert-ok    { background: var(--ok-bg);  color: var(--ok);  border: 1px solid #a7f3d0; }
.alert-info  { background: var(--lt-blue); color: var(--md-blue); border: 1px solid #93c5fd; }

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
@media (max-width: 560px) {
    .form-grid { grid-template-columns: 1fr; }
}
.form-grid .span-2 { grid-column: 1 / -1; }

.ci label {
    font-size: var(--fs-xs); color: var(--muted); font-weight: 600;
    display: block; margin-bottom: 4px;
}
.ci label .req { color: var(--pink); margin-left: 2px; }
.ci input, .ci select {
    width: 100%; background: var(--bg); border: 1.5px solid var(--border);
    border-radius: var(--r-sm); color: var(--text);
    padding: 10px 12px; font-family: inherit; font-size: var(--fs-xs);
    min-height: 42px; -webkit-appearance: none; appearance: none;
    transition: border-color .2s, box-shadow .2s;
}
.ci input:focus, .ci select:focus {
    outline: none; border-color: var(--pink);
    box-shadow: 0 0 0 3px rgba(255,45,120,.12);
    background: #fff;
}
.ci .hint { font-size: 11px; color: var(--muted); margin-top: 4px; min-height: 16px; }
.ci .hint.ok { color: var(--ok); }
.ci .hint.err { color: var(--err); }

.input-row { display: flex; gap: 8px; }
.input-row input { flex: 1; }
.btn-ghost {
    flex-shrink: 0;
    background: var(--lt-blue); color: var(--md-blue);
    border: 1px solid #93c5fd; border-radius: var(--r-sm);
    padding: 0 12px; font-family: inherit; font-size: 11px; font-weight: 700;
    cursor: pointer; min-height: 42px; white-space: nowrap;
}
.btn-ghost:hover { background: #cfe0ff; }

.btn-apply {
    margin-top: 18px; width: 100%;
    background: linear-gradient(90deg, var(--dp-blue), var(--pink));
    color: #fff; border: none;
    padding: 13px 28px; border-radius: 30px;
    font-family: inherit; font-size: var(--fs-sm); font-weight: 700;
    cursor: pointer; min-height: 46px;
    box-shadow: 0 4px 16px rgba(255,45,120,.3);
    transition: opacity .2s, transform .1s;
}
.btn-apply:hover  { opacity: .9; }
.btn-apply:active { transform: scale(.98); }

.auth-foot {
    margin-top: 16px; text-align: center;
    font-size: var(--fs-xs); color: var(--muted);
}
.auth-foot a {
    color: var(--pink); font-weight: 700; text-decoration: none;
}
.auth-foot a:hover { text-decoration: underline; }

.card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    padding: var(--sp-md);
    position: relative; overflow: hidden;
    box-shadow: var(--sh-sm);
}
.card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--dp-blue), var(--pink));
}
.sec-head {
    display: flex; align-items: center; gap: 10px;
    margin-bottom: var(--sp-sm);
}
.sec-head .bar {
    width: 4px; height: 22px; border-radius: 2px;
    background: linear-gradient(180deg, var(--dp-blue), var(--pink));
}
.sec-head h2 { font-size: var(--fs-md); font-weight: 700; color: var(--dp-blue); }
.sec-head span { font-size: var(--fs-xs); color: var(--muted); }

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--sp-sm);
    margin-top: var(--sp-sm);
}
@media (min-width: 720px) {
    .info-grid { grid-template-columns: repeat(3, 1fr); }
}
.info-item .c-label { font-size: var(--fs-xs); color: var(--muted); font-weight: 600; }
.info-item .c-val { font-size: 15px; font-weight: 800; color: var(--dp-blue); margin-top: 2px; word-break: break-all; }

.notice-box {
    background: linear-gradient(135deg, var(--lt-blue), #f0f4ff);
    border: 1px solid #93c5fd;
    border-radius: var(--r-sm);
    padding: var(--sp-sm) var(--sp-md);
    font-size: var(--fs-xs); color: var(--md-blue);
    line-height: 1.8; margin-top: var(--sp-md);
}

.ref-box {
    display: flex; gap: 8px; align-items: stretch; margin-top: 12px;
}
.ref-box input {
    flex: 1; background: var(--bg); border: 1.5px solid var(--border);
    border-radius: var(--r-sm); padding: 10px 12px;
    font-size: var(--fs-xs); color: var(--text); min-height: 44px;
}
.btn-copy {
    flex-shrink: 0;
    min-width: 72px;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--lt-blue);
    color: var(--md-blue);
    border: 1px solid #93c5fd;
    border-radius: var(--r-sm);
    padding: 0 16px;
    font-family: inherit;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
    transition: background .2s, color .2s, border-color .2s, box-shadow .2s, transform .15s;
}
.btn-copy:hover { background: #cfe0ff; }
.btn-copy-check {
    display: none;
    width: 22px;
    height: 22px;
}
.btn-copy.copied {
    background: var(--ok);
    border-color: #047857;
    color: #fff;
    box-shadow: 0 4px 14px rgba(5,150,105,.35);
    cursor: default;
}
.btn-copy.copied:hover { background: var(--ok); }
.btn-copy.copied .btn-copy-label { display: none; }
.btn-copy.copied .btn-copy-check { display: block; }
.tree-wrap { overflow-x: auto; padding: 12px 0 24px; }
.tree {
    display: flex; flex-direction: column; align-items: center;
    min-width: 520px; gap: 0;
}
.tree-branch {
    display: flex; flex-direction: column; align-items: center;
}
.tree-col {
    display: flex; flex-direction: column; align-items: center;
    position: relative;
}
.tree-col::before {
    content: '';
    position: absolute;
    top: -21px;
    left: 50%;
    width: 2px;
    height: 21px;
    margin-left: -1px;
    background: #93c5fd;
}
.tree-col:first-child::after {
    content: '';
    position: absolute;
    top: -20px;
    left: calc(50% - 1px);
    right: -21px;
    height: 2px;
    background: #93c5fd;
}
.tree-col:last-child::after {
    content: '';
    position: absolute;
    top: -20px;
    left: -21px;
    right: calc(50% - 1px);
    height: 2px;
    background: #93c5fd;
}
.tree-kids {
    display: flex; justify-content: center; gap: 40px;
    position: relative;
    margin-top: 40px;
}
.tree-kids::after {
    content: '';
    position: absolute;
    top: -40px;
    left: 50%;
    width: 2px;
    height: 22px;
    margin-left: -1px;
    background: #93c5fd;
}
.tree-node {
    background: var(--white); border: 1px solid var(--border);
    border-radius: 14px; padding: 10px 14px; min-width: 120px;
    text-align: center; box-shadow: var(--sh-sm);
}
.tree-node.me {
    background: linear-gradient(135deg, var(--dp-blue), var(--pink));
    border: none; color: #fff;
}
.tree-node.me .tn-id, .tree-node.me .tn-nft { color: rgba(255,255,255,.8); }
.tree-node.empty {
    background: var(--bg); color: var(--muted); border-style: dashed;
}
.tn-name { font-weight: 800; font-size: 13px; color: var(--dp-blue); }
.tree-node.me .tn-name { color: #fff; }
.tn-id, .tn-nft { font-size: 11px; color: var(--muted); margin-top: 2px; }
.tn-side {
    display: inline-block; font-size: 10px; font-weight: 700;
    padding: 1px 8px; border-radius: 10px; margin-bottom: 4px;
}
.tn-side.L { background: var(--lt-blue); color: var(--md-blue); }
.tn-side.R { background: var(--pk-lt); color: #9d174d; }

.xfer-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--fs-xs);
}
.xfer-table th, .xfer-table td {
    padding: 10px 8px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
.xfer-table th { color: var(--muted); font-weight: 700; }
.xfer-table td.num { text-align: right; font-weight: 800; font-variant-numeric: tabular-nums; }
.xfer-table th.num { text-align: right; }
.xfer-table td.num.out { color: var(--err); }
.xfer-table td.num.in { color: var(--ok); }
.xfer-tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 700;
}
.xfer-tag.out { background: var(--err-bg); color: var(--err); }
.xfer-tag.in { background: var(--ok-bg); color: var(--ok); }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #d1d5db; border-radius: 3px; }