/* ============================================================
   통신킹 디자인 시스템 v1 (tk-system.css)
   ----------------------------------------------------
   - intro/브로셔 페이지 디자인을 baseline으로 한 글로벌 토큰
   - `.tk-` 접두사 스코프로 기존 페이지에 영향 없음
   - Pretendard + 라이트 톤 + 보라(브랜드) + 오렌지(액션)
   ============================================================ */

:root{
    /* ----- 컬러 토큰 ----- */
    --tk-ink:#0f172a;
    --tk-ink-soft:#1e293b;
    --tk-ink-mute:#334155;
    --tk-muted:#64748b;
    --tk-muted-2:#94a3b8;
    --tk-line:#e6e8ef;
    --tk-line-2:#eef0f6;
    --tk-line-3:#f1f3f9;
    --tk-bg:#ffffff;
    --tk-bg-soft:#f7f8fc;
    --tk-bg-tint:#f0eefe;

    --tk-brand:#5143d9;
    --tk-brand-2:#7c70f0;
    --tk-brand-deep:#3d33b3;
    --tk-brand-soft:#eeebff;
    --tk-brand-tint:#f5f3ff;

    --tk-accent:#ff6b35;
    --tk-accent-2:#ffb547;
    --tk-accent-soft:#fff1eb;

    --tk-good:#10b981;
    --tk-good-soft:#d1fae5;
    --tk-warn:#f59e0b;
    --tk-warn-soft:#fef3c7;
    --tk-danger:#ef4444;
    --tk-danger-soft:#fee2e2;
    --tk-info:#06b6d4;
    --tk-info-soft:#cffafe;

    /* ----- Spacing scale (8 base) ----- */
    --tk-sp-1:.25rem;
    --tk-sp-2:.5rem;
    --tk-sp-3:.75rem;
    --tk-sp-4:1rem;
    --tk-sp-5:1.5rem;
    --tk-sp-6:2rem;
    --tk-sp-7:3rem;
    --tk-sp-8:4rem;
    --tk-sp-9:6rem;

    /* ----- Radius ----- */
    --tk-r-sm:8px;
    --tk-r-md:14px;
    --tk-r-lg:18px;
    --tk-r-xl:24px;
    --tk-r-2xl:32px;
    --tk-r-full:999px;

    /* ----- Shadow ----- */
    --tk-shadow-sm:0 2px 6px rgba(15,23,42,.04), 0 1px 2px rgba(15,23,42,.06);
    --tk-shadow-md:0 10px 24px -8px rgba(15,23,42,.08), 0 4px 10px -4px rgba(15,23,42,.06);
    --tk-shadow-lg:0 30px 60px -24px rgba(81,67,217,.18), 0 10px 24px -10px rgba(15,23,42,.08);
    --tk-shadow-xl:0 40px 80px -28px rgba(81,67,217,.25), 0 14px 30px -14px rgba(15,23,42,.12);

    /* ----- z-index ----- */
    --tk-z-nav:1030;
    --tk-z-overlay:1040;
    --tk-z-fab:1045;
    --tk-z-modal:1050;
    --tk-z-toast:1060;

    /* ----- Typography scale ----- */
    --tk-fs-xs:.8rem;
    --tk-fs-sm:.875rem;
    --tk-fs-base:1rem;
    --tk-fs-md:1.05rem;
    --tk-fs-lg:1.2rem;
    --tk-fs-xl:1.5rem;
    --tk-fs-2xl:2rem;
    --tk-fs-3xl:2.6rem;
    --tk-fs-display:3.4rem;

    /* ----- Transition ----- */
    --tk-tr-fast:.15s ease;
    --tk-tr-base:.2s ease;
    --tk-tr-slow:.3s ease;
}

/* ============================================================
   Root 스코프 (.tk 또는 [data-tk])
   ============================================================ */
.tk{
    font-family:'Pretendard','Pretendard Variable',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
    color:var(--tk-ink);
    background:var(--tk-bg);
    letter-spacing:-0.02em;
    line-height:1.5;
    -webkit-tap-highlight-color:rgba(81,67,217,.12);
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
    text-rendering:optimizeLegibility;
    -webkit-text-size-adjust:100%;
    overflow-x:clip;
}
.tk *{box-sizing:border-box;}

/* 제목 — base.html 글로벌 h1 padding 강제값 무력화 */
.tk h1,.tk h2,.tk h3,.tk h4{
    color:var(--tk-ink) !important;
    margin:0;
    padding:0 !important;
    font-weight:900;
    line-height:1.2;
    letter-spacing:-0.035em;
}
.tk p{margin:0;color:var(--tk-ink-soft) !important;}
.tk strong{color:var(--tk-ink) !important;font-weight:800;}
.tk a{color:var(--tk-brand);text-decoration:none;}
.tk a:hover{text-decoration:none;color:var(--tk-brand-deep);}

/* ============================================================
   Layout helpers
   ============================================================ */
.tk-container{max-width:1200px;margin:0 auto;padding:0 20px;}
.tk-container-sm{max-width:780px;margin:0 auto;padding:0 20px;}
.tk-container-lg{max-width:1320px;margin:0 auto;padding:0 24px;}

.tk-section{padding:56px 0;}
@media (min-width:768px){
    .tk-section{padding:84px 0;}
}
.tk-section-sm{padding:40px 0;}
@media (min-width:768px){
    .tk-section-sm{padding:60px 0;}
}

.tk-center{text-align:center;}

/* ============================================================
   Common typography
   ============================================================ */
.tk-eyebrow{
    display:inline-block;font-size:.82rem;font-weight:800;
    color:var(--tk-brand) !important;background:var(--tk-brand-soft);
    padding:.4rem .95rem;border-radius:var(--tk-r-full);
    margin-bottom:.9rem;
}
.tk-title{
    font-size:clamp(1.7rem,4vw,2.5rem);font-weight:900;
    color:var(--tk-ink) !important;line-height:1.2;
    letter-spacing:-0.035em;
}
.tk-title-lg{
    font-size:clamp(2rem,5vw,3.2rem);font-weight:900;
    color:var(--tk-ink) !important;line-height:1.16;
    letter-spacing:-0.04em;
}
.tk-title .em,.tk-title-lg .em{color:var(--tk-brand) !important;}
.tk-title .hl,.tk-title-lg .hl{
    background:linear-gradient(120deg,var(--tk-brand),var(--tk-accent));
    -webkit-background-clip:text;background-clip:text;
    -webkit-text-fill-color:transparent;color:transparent !important;
}
.tk-title .ul,.tk-title-lg .ul{position:relative;display:inline-block;color:var(--tk-ink) !important;}
.tk-title .ul::after,.tk-title-lg .ul::after{
    content:"";position:absolute;left:0;right:0;bottom:.04em;height:.32em;
    background:var(--tk-accent-2);opacity:.55;z-index:-1;border-radius:4px;
}
.tk-lead{
    color:var(--tk-muted) !important;font-size:clamp(1rem,1.7vw,1.15rem);
    line-height:1.65;font-weight:500;
}
.tk-lead strong{color:var(--tk-ink) !important;font-weight:800;}

/* ============================================================
   Buttons
   ============================================================ */
.tk-btn{
    display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
    font-weight:800;font-size:1rem;border:0;border-radius:var(--tk-r-full);
    cursor:pointer;text-decoration:none;font-family:inherit;
    padding:.95rem 1.7rem;min-height:50px;white-space:nowrap;
    transition:transform var(--tk-tr-fast), box-shadow var(--tk-tr-fast), background var(--tk-tr-fast), color var(--tk-tr-fast);
}
.tk-btn-primary{
    background:linear-gradient(120deg,var(--tk-brand),var(--tk-brand-2));
    color:#fff !important;
    box-shadow:0 14px 30px -10px rgba(81,67,217,.55);
}
.tk-btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 38px -10px rgba(81,67,217,.7);color:#fff !important;}
.tk-btn-accent{
    background:linear-gradient(120deg,var(--tk-accent),#ff8b4a);
    color:#fff !important;
    box-shadow:0 14px 30px -10px rgba(255,107,53,.5);
}
.tk-btn-accent:hover{transform:translateY(-2px);box-shadow:0 20px 38px -10px rgba(255,107,53,.65);color:#fff !important;}
.tk-btn-outline{
    background:#fff;color:var(--tk-ink) !important;border:1.5px solid var(--tk-line);
}
.tk-btn-outline:hover{border-color:var(--tk-brand);color:var(--tk-brand) !important;}
.tk-btn-ghost{background:transparent;color:var(--tk-brand) !important;}
.tk-btn-ghost:hover{background:var(--tk-brand-soft);color:var(--tk-brand) !important;}
.tk-btn-light{
    background:rgba(255,255,255,.16);color:#fff !important;
    border:1.5px solid rgba(255,255,255,.4);backdrop-filter:blur(8px);
}
.tk-btn-light:hover{background:rgba(255,255,255,.28);color:#fff !important;}
.tk-btn-sm{padding:.65rem 1.2rem;font-size:.92rem;min-height:42px;}
.tk-btn-lg{padding:1.15rem 2rem;font-size:1.1rem;min-height:58px;}
.tk-btn-block{width:100%;}

/* ============================================================
   Cards
   ============================================================ */
.tk-card{
    background:#fff;border:1px solid var(--tk-line);border-radius:var(--tk-r-lg);
    padding:1.6rem;
    transition:transform var(--tk-tr-base), box-shadow var(--tk-tr-base);
}
.tk-card-lg{
    background:#fff;border:1px solid var(--tk-line);border-radius:var(--tk-r-xl);
    padding:2rem;
}
.tk-card-hover:hover{transform:translateY(-4px);box-shadow:var(--tk-shadow-md);}
.tk-card-glow:hover{transform:translateY(-5px);box-shadow:0 24px 48px -22px rgba(81,67,217,.25);border-color:var(--tk-brand-2);}

/* ============================================================
   Chips / Tags
   ============================================================ */
.tk-chip{
    display:inline-flex;align-items:center;gap:.4rem;
    font-size:.85rem;font-weight:700;
    background:var(--tk-bg-soft);color:var(--tk-ink-soft);
    border:1px solid var(--tk-line);border-radius:var(--tk-r-full);
    padding:.35rem .9rem;
}
.tk-chip-brand{background:var(--tk-brand-soft);color:var(--tk-brand) !important;border-color:transparent;}
.tk-chip-accent{background:var(--tk-accent-soft);color:var(--tk-accent) !important;border-color:transparent;}
.tk-chip-good{background:var(--tk-good-soft);color:var(--tk-good) !important;border-color:transparent;}
.tk-chip-warn{background:var(--tk-warn-soft);color:var(--tk-warn) !important;border-color:transparent;}
.tk-chip-danger{background:var(--tk-danger-soft);color:var(--tk-danger) !important;border-color:transparent;}

/* ============================================================
   Form controls
   ============================================================ */
.tk-input{
    width:100%;border:1.5px solid var(--tk-line);border-radius:var(--tk-r-md);
    padding:.95rem 1rem;font-size:1rem;font-family:inherit;
    background:#fff;color:var(--tk-ink);
    transition:border-color var(--tk-tr-fast), box-shadow var(--tk-tr-fast);
    min-height:50px;
}
.tk-input:focus{
    outline:0;border-color:var(--tk-brand);
    box-shadow:0 0 0 4px rgba(81,67,217,.12);
}
.tk-input::placeholder{color:#9aa1b5;}
.tk-label{
    display:block;font-weight:800;font-size:.92rem;
    color:var(--tk-ink) !important;margin-bottom:.55rem;
}
.tk-label .req{color:var(--tk-accent) !important;margin-left:.15rem;}

/* ============================================================
   Grid utility
   ============================================================ */
.tk-grid{display:grid;gap:1.2rem;}
.tk-grid-2{grid-template-columns:1fr;gap:1.2rem;}
.tk-grid-3{grid-template-columns:1fr;gap:1.2rem;}
.tk-grid-4{grid-template-columns:1fr;gap:1.1rem;}
@media (min-width:640px){
    .tk-grid-2{grid-template-columns:repeat(2,1fr);}
    .tk-grid-4{grid-template-columns:repeat(2,1fr);}
}
@media (min-width:900px){
    .tk-grid-3{grid-template-columns:repeat(3,1fr);}
    .tk-grid-4{grid-template-columns:repeat(4,1fr);}
}

/* ============================================================
   Floating Action Button (FAB) — 모든 페이지 공통
   - 모바일: bottom nav(약 76px) 위로 올림
   - 데스크탑: 우측 하단 24px
   ============================================================ */
.tk-fab{
    position:fixed;
    right:14px;
    bottom:calc(76px + max(8px, env(safe-area-inset-bottom)));
    z-index:var(--tk-z-fab);
    display:flex;flex-direction:column;gap:.55rem;
    align-items:flex-end;
}
.tk-fab a{
    display:inline-flex;align-items:center;gap:.5rem;
    padding:.9rem 1.3rem;border-radius:var(--tk-r-full);text-decoration:none;
    font-weight:800;font-size:.95rem;font-family:inherit;
    box-shadow:0 14px 30px -10px rgba(15,23,42,.3);
    transition:transform var(--tk-tr-fast), box-shadow var(--tk-tr-fast);
    white-space:nowrap;line-height:1;
}
.tk-fab a:hover{transform:translateY(-2px);box-shadow:0 18px 36px -10px rgba(81,67,217,.5);}
.tk-fab .fab-call{background:#fff;color:var(--tk-brand) !important;border:1.5px solid var(--tk-brand-soft);}
.tk-fab .fab-main{
    background:linear-gradient(120deg,var(--tk-brand),var(--tk-brand-2));
    color:#fff !important;padding:1.05rem 1.5rem;font-size:1rem;font-weight:900;
    box-shadow:0 18px 36px -10px rgba(81,67,217,.6);
    position:relative;isolation:isolate;
}
.tk-fab .fab-main::before{
    content:"";position:absolute;inset:0;border-radius:var(--tk-r-full);
    background:var(--tk-brand);z-index:-1;
    animation:tkFabPulse 2.2s ease-out infinite;
}
@keyframes tkFabPulse{
    0%{opacity:.55;transform:scale(1);}
    80%{opacity:0;transform:scale(1.35);}
    100%{opacity:0;transform:scale(1.35);}
}
@media (min-width:768px){
    .tk-fab{right:24px;gap:.65rem;}
}
@media (min-width:992px){
    /* 992px↑에서는 데스크탑 navbar 사용 (모바일 bottom nav 없음) → bottom 24px */
    .tk-fab{bottom:24px;}
}

/* ============================================================
   Background decoration helpers
   ============================================================ */
.tk-bg-grid{
    position:relative;
    background:
        radial-gradient(900px 480px at 100% 0%, rgba(81,67,217,.08), transparent 60%),
        radial-gradient(700px 480px at 0% 100%, rgba(255,107,53,.06), transparent 55%),
        linear-gradient(180deg,#fafbff 0%, #ffffff 100%);
    overflow:hidden;
}
.tk-bg-grid::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:
        linear-gradient(rgba(81,67,217,.05) 1px,transparent 1px),
        linear-gradient(90deg,rgba(81,67,217,.05) 1px,transparent 1px);
    background-size:42px 42px;
    -webkit-mask-image:radial-gradient(70% 50% at 50% 30%,#000,transparent 90%);
    mask-image:radial-gradient(70% 50% at 50% 30%,#000,transparent 90%);
}
.tk-bg-soft{background:var(--tk-bg-soft);}
.tk-bg-brand-soft{background:var(--tk-brand-soft);}

/* ============================================================
   Section Side Nav — 스크롤 진행 인디케이터 (자동 감지)
   - 페이지의 .tk 스코프 안 섹션을 자동 감지
   - 우측 세로, 점 + 라벨, 현재 섹션 강조
   - 데스크탑(>=1200px)에서만 표시
   ============================================================ */
.tk-side-nav{
    position:fixed;
    right:22px;
    top:50%;
    transform:translateY(-50%);
    z-index:1035;
    display:none;
    flex-direction:column;
    gap:14px;
    align-items:flex-end;
    pointer-events:auto;
}
@media (min-width:1200px){
    .tk-side-nav{display:flex;}
}
.tk-side-nav-item{
    display:flex;
    align-items:center;
    gap:11px;
    text-decoration:none;
    cursor:pointer;
    font-family:'Pretendard','Pretendard Variable',-apple-system,sans-serif;
    font-size:.82rem;
    font-weight:700;
    letter-spacing:-0.02em;
    border:0;background:transparent;padding:2px 0;
    line-height:1;
}
.tk-side-nav-item .label{
    color:var(--tk-muted) !important;
    opacity:.7;
    transition:color .22s ease, opacity .22s ease, transform .22s ease;
    white-space:nowrap;
}
.tk-side-nav-item .dot{
    flex:0 0 auto;
    width:9px;height:9px;
    border-radius:50%;
    background:var(--tk-line);
    transition:background .22s ease, transform .22s ease, box-shadow .22s ease;
}
.tk-side-nav-item:hover .label{
    color:var(--tk-ink) !important;
    opacity:1;
}
.tk-side-nav-item:hover .dot{
    background:var(--tk-brand-2);
    transform:scale(1.2);
}
.tk-side-nav-item.is-active .label{
    color:var(--tk-brand) !important;
    opacity:1;
    font-weight:800;
}
.tk-side-nav-item.is-active .dot{
    background:var(--tk-brand);
    transform:scale(1.45);
    box-shadow:0 0 0 5px var(--tk-brand-soft);
}
/* 인쇄·브로셔 등에서 숨김 */
@media print{
    .tk-side-nav{display:none !important;}
}

/* ============================================================
   Accessibility
   ============================================================ */
@media (prefers-reduced-motion: reduce){
    .tk *,.tk *::before,.tk *::after,
    .tk-fab,.tk-fab .fab-main::before{
        animation-duration:.01ms !important;
        animation-iteration-count:1 !important;
        transition-duration:.01ms !important;
    }
}

/* ============================================================
   v2 (2026-10) — 전환 개편용 컴포넌트
   세그먼트 탭 · 통계 타일 · 벤토 그리드 · 스테퍼 · 하단 시트 · 스켈레톤 · 인증 화면
   ============================================================ */

/* 세그먼트 탭 */
.tk .tk-seg{display:inline-flex;gap:4px;padding:4px;background:var(--tk-bg-soft);border:1px solid var(--tk-line);
    border-radius:var(--tk-r-full);max-width:100%;overflow-x:auto;scrollbar-width:none;}
.tk .tk-seg::-webkit-scrollbar{display:none;}
.tk .tk-seg button,.tk .tk-seg a{flex:0 0 auto;min-height:44px;padding:0 18px;border:0;border-radius:var(--tk-r-full);
    background:transparent;font:inherit;font-weight:800;font-size:.94rem;color:var(--tk-muted) !important;cursor:pointer;
    display:inline-flex;align-items:center;gap:6px;white-space:nowrap;transition:background-color .15s,color .15s,box-shadow .15s;}
.tk .tk-seg button[aria-selected="true"],.tk .tk-seg a.is-active{background:#fff;color:var(--tk-brand) !important;
    box-shadow:0 2px 8px rgba(15,23,42,.08);}
.tk .tk-seg button:focus-visible,.tk .tk-seg a:focus-visible{outline:2px solid var(--tk-brand);outline-offset:2px;}

/* 통계 타일 */
.tk .tk-stat{display:flex;flex-direction:column;gap:6px;padding:20px;background:#fff;border:1px solid var(--tk-line);
    border-radius:var(--tk-r-lg);}
.tk .tk-stat .lbl{font-size:.84rem;font-weight:700;color:var(--tk-muted) !important;}
.tk .tk-stat .num{font-size:clamp(1.7rem,5vw,2.4rem);font-weight:900;letter-spacing:-.04em;line-height:1.1;
    color:var(--tk-ink) !important;font-variant-numeric:tabular-nums;}
.tk .tk-stat .num small{font-size:.5em;font-weight:800;color:var(--tk-muted) !important;margin-left:2px;letter-spacing:-.02em;}
.tk .tk-stat .sub{font-size:.8rem;color:var(--tk-muted-2) !important;font-weight:600;}
.tk .tk-stat.is-brand{background:linear-gradient(135deg,var(--tk-brand),var(--tk-brand-deep));border-color:transparent;}
.tk .tk-stat.is-brand .lbl,.tk .tk-stat.is-brand .sub{color:rgba(255,255,255,.78) !important;}
.tk .tk-stat.is-brand .num,.tk .tk-stat.is-brand .num small{color:#fff !important;}

/* 벤토 그리드 */
.tk .tk-bento{display:grid;grid-template-columns:1fr;gap:14px;}
.tk .tk-bento > *{min-width:0;}
@media (min-width:768px){
    .tk .tk-bento{grid-template-columns:repeat(6,1fr);gap:18px;}
    .tk .tk-bento > .span-2{grid-column:span 2;}
    .tk .tk-bento > .span-3{grid-column:span 3;}
    .tk .tk-bento > .span-4{grid-column:span 4;}
    .tk .tk-bento > .span-6{grid-column:span 6;}
}
.tk .tk-bento-cell{padding:24px;background:#fff;border:1px solid var(--tk-line);border-radius:var(--tk-r-xl);
    display:flex;flex-direction:column;gap:10px;}
.tk .tk-bento-cell.is-soft{background:var(--tk-bg-soft);}
.tk .tk-bento-cell.is-tint{background:var(--tk-brand-tint);border-color:var(--tk-brand-soft);}
.tk .tk-bento-cell h3{margin:0 !important;padding:0 !important;font-size:1.15rem;font-weight:800;letter-spacing:-.03em;
    color:var(--tk-ink) !important;}
.tk .tk-bento-cell p{margin:0;font-size:.94rem;line-height:1.65;color:var(--tk-muted) !important;}
.tk .tk-bento-cell .ico{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:1.25rem;
    background:var(--tk-brand-soft);color:var(--tk-brand) !important;}

/* 스테퍼 */
.tk .tk-stepper{display:flex;align-items:center;gap:8px;list-style:none;margin:0 0 22px;padding:0;}
.tk .tk-stepper li{flex:1;display:flex;align-items:center;gap:8px;font-size:.82rem;font-weight:800;
    color:var(--tk-muted-2) !important;min-width:0;}
.tk .tk-stepper li .n{flex:0 0 auto;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
    background:var(--tk-line-2);color:var(--tk-muted) !important;font-size:.8rem;font-weight:900;}
.tk .tk-stepper li .t{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.tk .tk-stepper li::after{content:"";flex:1;height:2px;background:var(--tk-line);border-radius:2px;}
.tk .tk-stepper li:last-child{flex:0 0 auto;}
.tk .tk-stepper li:last-child::after{display:none;}
.tk .tk-stepper li.is-active{color:var(--tk-brand) !important;}
.tk .tk-stepper li.is-active .n{background:var(--tk-brand);color:#fff !important;}
.tk .tk-stepper li.is-done{color:var(--tk-ink-mute) !important;}
.tk .tk-stepper li.is-done .n{background:var(--tk-good);color:#fff !important;}
.tk .tk-stepper li.is-done::after{background:var(--tk-good);}

/* 스켈레톤 */
.tk .tk-skeleton{display:block;border-radius:var(--tk-r-sm);min-height:1em;
    background:linear-gradient(90deg,var(--tk-line-2) 25%,var(--tk-line-3) 37%,var(--tk-line-2) 63%);
    background-size:400% 100%;animation:tk-skeleton 1.3s ease infinite;color:transparent !important;}
@keyframes tk-skeleton{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* 하단 시트 (모바일) — .is-open 으로 표시 */
.tk-sheet-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.45);opacity:0;pointer-events:none;
    transition:opacity .2s;z-index:1090;}
.tk-sheet-backdrop.is-open{opacity:1;pointer-events:auto;}
.tk-sheet{position:fixed;left:0;right:0;bottom:0;z-index:1091;background:#fff;border-radius:22px 22px 0 0;
    padding:10px 18px calc(18px + env(safe-area-inset-bottom,0px));max-height:78vh;overflow-y:auto;
    transform:translateY(105%);transition:transform .25s cubic-bezier(.2,.8,.2,1);
    box-shadow:0 -20px 50px -20px rgba(15,23,42,.35);font-family:'Pretendard','Pretendard Variable',-apple-system,sans-serif;}
.tk-sheet.is-open{transform:translateY(0);}
.tk-sheet .grab{width:40px;height:4px;border-radius:4px;background:var(--tk-line);margin:0 auto 14px;}
.tk-sheet .sheet-title{font-size:1.05rem;font-weight:900;color:var(--tk-ink);margin:0 0 12px;padding:0 !important;letter-spacing:-.03em;}
@media (min-width:768px){
    .tk-sheet{left:50%;right:auto;bottom:auto;top:50%;width:min(520px,92vw);border-radius:22px;
        transform:translate(-50%,-46%);opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;padding:22px;}
    .tk-sheet.is-open{transform:translate(-50%,-50%);opacity:1;pointer-events:auto;}
    .tk-sheet .grab{display:none;}
}

/* 인증 화면 (.tk.tk-auth) — 로그인·가입·역할 선택·본인인증 공용 */
.tk.tk-auth{color:var(--tk-ink) !important;}
.tk.tk-auth a{text-decoration:none !important;}
.tk.tk-auth .auth-wrap{min-height:calc(100vh - 60px);display:flex;align-items:center;justify-content:center;
    padding:40px 18px 64px;
    background:radial-gradient(820px 520px at 100% -10%,rgba(81,67,217,.12),transparent 60%),
               radial-gradient(680px 460px at -10% 120%,rgba(255,107,53,.07),transparent 55%),
               linear-gradient(180deg,#fafbff,#fff);}
.tk.tk-auth .auth-wrap.is-top{align-items:flex-start;}
.tk.tk-auth .auth-card{width:100%;max-width:440px;background:#fff;border:1px solid var(--tk-line);
    border-radius:var(--tk-r-xl);box-shadow:0 30px 60px -30px rgba(81,67,217,.32);padding:34px 30px 30px;}
.tk.tk-auth .auth-card.is-wide{max-width:760px;}
.tk.tk-auth .auth-head{text-align:center;margin-bottom:24px;}
.tk.tk-auth .auth-logo{display:inline-flex;align-items:center;gap:6px;font-weight:900;font-size:1.15rem;
    color:var(--tk-brand) !important;margin-bottom:14px;}
.tk.tk-auth .auth-head h1{margin:0 !important;padding:0 !important;font-size:clamp(1.6rem,4.4vw,2rem);font-weight:900;
    letter-spacing:-.035em;line-height:1.2;color:var(--tk-ink) !important;}
.tk.tk-auth .auth-head .auth-sub{margin:8px 0 0;font-size:.92rem;color:var(--tk-muted) !important;font-weight:600;}
.tk.tk-auth .auth-err{padding:12px 15px;background:#fef2f2;border:1px solid #fecaca;border-radius:var(--tk-r-md);
    color:#991b1b !important;font-weight:700;font-size:.9rem;margin-bottom:18px;display:flex;align-items:flex-start;gap:8px;}
.tk.tk-auth .auth-err *{color:#991b1b !important;}
.tk.tk-auth .auth-err ul{margin:0;padding:0;list-style:none;}
.tk.tk-auth .auth-form .fld{margin-bottom:15px;}
.tk.tk-auth .auth-form label{display:block;font-weight:800;font-size:.86rem;color:var(--tk-ink-soft) !important;margin-bottom:7px;}
.tk.tk-auth .auth-form .hint{font-size:.8rem;color:var(--tk-muted-2) !important;font-weight:600;margin-top:6px;}
.tk.tk-auth .auth-form input[type=text],
.tk.tk-auth .auth-form input[type=password],
.tk.tk-auth .auth-form input[type=email],
.tk.tk-auth .auth-form input[type=tel],
.tk.tk-auth .auth-form input[type=number],
.tk.tk-auth .auth-form input:not([type]),
.tk.tk-auth .auth-form select{
    width:100%;height:52px;padding:0 16px;border:1.5px solid var(--tk-line);border-radius:10px;
    font-size:1rem;font-family:inherit;color:var(--tk-ink) !important;background:#fff;
    transition:border-color .15s,box-shadow .15s;}
.tk.tk-auth .auth-form input:focus,.tk.tk-auth .auth-form select:focus{outline:0;border-color:var(--tk-brand);
    box-shadow:0 0 0 3px rgba(81,67,217,.14);}
.tk.tk-auth .auth-form input[readonly]{background:var(--tk-bg-soft);color:var(--tk-muted) !important;}
.tk.tk-auth .auth-form .f-err{color:var(--tk-danger) !important;font-size:.82rem;font-weight:700;margin-top:6px;}
.tk.tk-auth .auth-form .f-err *{color:var(--tk-danger) !important;}
.tk.tk-auth .auth-form .f-err ul{margin:0;padding:0;list-style:none;}
.tk.tk-auth .auth-check{display:flex;align-items:flex-start;gap:10px;padding:9px 0;font-size:.9rem;font-weight:600;
    color:var(--tk-ink-mute) !important;cursor:pointer;margin:0 !important;}
.tk.tk-auth .auth-check input{width:20px;height:20px;margin-top:1px;accent-color:var(--tk-brand);flex:0 0 auto;}
.tk.tk-auth .auth-check a{color:var(--tk-brand) !important;font-weight:800;}
.tk.tk-auth .auth-submit{width:100%;min-height:54px;margin-top:6px;border:0;border-radius:var(--tk-r-md);
    font-size:1.05rem;font-weight:900;color:#fff !important;cursor:pointer;font-family:inherit;
    background:linear-gradient(135deg,var(--tk-brand),var(--tk-brand-deep));
    box-shadow:0 14px 28px -12px rgba(81,67,217,.7);transition:transform .06s,filter .15s;
    display:inline-flex;align-items:center;justify-content:center;gap:8px;}
.tk.tk-auth .auth-submit:hover{filter:brightness(1.06);}
.tk.tk-auth .auth-submit:active{transform:translateY(1px);}
.tk.tk-auth .auth-submit:disabled{opacity:.6;cursor:not-allowed;}
.tk.tk-auth .auth-div{display:flex;align-items:center;gap:12px;margin:22px 0 16px;color:var(--tk-muted-2) !important;
    font-size:.82rem;font-weight:700;}
.tk.tk-auth .auth-div::before,.tk.tk-auth .auth-div::after{content:"";flex:1;height:1px;background:var(--tk-line);}
.tk.tk-auth .auth-social{display:flex;flex-direction:column;gap:10px;}
.tk.tk-auth .auth-social a,.tk.tk-auth .auth-social button{display:flex;align-items:center;justify-content:center;gap:8px;
    width:100%;height:54px;border:0;border-radius:10px;font-weight:800;font-size:1rem;font-family:inherit;cursor:pointer;
    transition:filter .15s;}
.tk.tk-auth .auth-social a:hover,.tk.tk-auth .auth-social button:hover{filter:brightness(.97);}
.tk.tk-auth .auth-social .kakao{background:#FEE500;color:#181600 !important;}
.tk.tk-auth .auth-foot{margin-top:24px;padding-top:22px;border-top:1px solid var(--tk-line);text-align:center;}
.tk.tk-auth .auth-foot .reset{display:inline-block;color:var(--tk-muted) !important;font-weight:600;font-size:.9rem;margin-bottom:14px;}
.tk.tk-auth .auth-foot .signup{font-size:.94rem;color:var(--tk-muted) !important;font-weight:600;margin:0;}
.tk.tk-auth .auth-foot .signup a{color:var(--tk-brand) !important;font-weight:800;}
.tk.tk-auth .auth-trust{margin-top:18px;text-align:center;font-size:.8rem;color:var(--tk-muted-2) !important;font-weight:600;
    display:flex;align-items:center;justify-content:center;gap:6px;}
.tk.tk-auth .auth-note{display:flex;gap:10px;align-items:flex-start;padding:13px 15px;border-radius:var(--tk-r-md);
    background:var(--tk-brand-tint);border:1px solid var(--tk-brand-soft);font-size:.88rem;font-weight:600;
    color:var(--tk-ink-mute) !important;line-height:1.55;margin-bottom:18px;}
.tk.tk-auth .auth-note i{color:var(--tk-brand) !important;font-size:1.05rem;margin-top:1px;}
@media (max-width:480px){
    .tk.tk-auth .auth-card{padding:28px 20px 24px;border-radius:var(--tk-r-lg);}
    .tk.tk-auth .auth-wrap{padding:24px 14px 48px;}
}

@media (prefers-reduced-motion: reduce){
    .tk .tk-skeleton{animation:none;}
    .tk-sheet,.tk-sheet-backdrop{transition:none;}
}