@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.min.css");
@import url("https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,500;12..96,700;12..96,800&display=swap");

:root{
  --harbor:#0A2342; --deep:#123A6B; --pk:#1C5BAA; --glass:#7FD1C7; --foam:#F3F8FB; --sand:#E9DFC9;
  --ink:#13253A; --mute:#5B6B7F; --line:#DCE5EE; --white:#fff;
  --ok:#167A5B; --okbg:#E3F5EE; --warn:#B4610E; --warnbg:#FDF1E3; --bad:#B42318; --badbg:#FCEBEA;
  --display:"Bricolage Grotesque","Pretendard Variable",Pretendard,sans-serif;
  --body:"Pretendard Variable",Pretendard,"Apple SD Gothic Neo","Noto Sans KR",system-ui,sans-serif;
  --r-card:20px; --r-ctl:10px;
  --shadow:0 1px 2px rgba(10,35,66,.06),0 12px 32px -18px rgba(10,35,66,.35);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--body);color:var(--ink);background:var(--foam);font-size:15.5px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--pk)}
:focus-visible{outline:3px solid var(--glass);outline-offset:2px}

/* ---------- hero: the one bold moment ---------- */
.hero{position:relative;color:#fff;background:linear-gradient(175deg,var(--harbor) 0%,var(--deep) 55%,#1a4f93 100%);overflow:hidden;isolation:isolate}
.hero .bar{position:relative;z-index:3;display:flex;align-items:center;gap:14px;max-width:1180px;margin:0 auto;padding:18px 28px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;font-size:16px;letter-spacing:-.01em}
.brand .dot{width:10px;height:10px;border-radius:50%;background:var(--glass);box-shadow:0 0 0 4px rgba(127,209,199,.22)}
.hero .bar .sp{flex:1}
.hero .who{font-size:14px;color:#cfe0f5}
.hero .inner{position:relative;z-index:3;max-width:1180px;margin:0 auto;padding:22px 28px 128px;display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:24px;align-items:end}
.hero h1{font-family:var(--display);font-weight:800;font-size:clamp(30px,4.6vw,52px);line-height:1.04;letter-spacing:-.025em;margin:0 0 14px;max-width:16ch}
.hero p.lead{margin:0;max-width:56ch;color:#d6e4f5;font-size:17px}
.hero.compact .inner{padding-bottom:96px}
.hero.compact h1{font-size:clamp(26px,3.4vw,38px)}
.waves{position:absolute;left:0;right:0;bottom:-2px;height:120px;z-index:2;pointer-events:none}
.waves svg{position:absolute;bottom:0;left:0;width:200%;height:100%}
.waves .w1{animation:drift 22s linear infinite;opacity:.35}
.waves .w2{animation:drift 15s linear infinite reverse;opacity:.55;height:80%}
.waves .w3{animation:drift 11s linear infinite;height:58%}
@keyframes drift{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* mascot (official 백경이 image provided by the professor) */
.bk{display:block;user-select:none;pointer-events:none;filter:drop-shadow(0 10px 14px rgba(5,20,40,.35))}
.bk-hero{position:relative;z-index:2;justify-self:end;width:min(230px,100%);margin-bottom:-58px;animation:bob 4.2s ease-in-out infinite;transform-origin:50% 80%}
@keyframes bob{0%,100%{transform:translateY(0) rotate(-3deg)}50%{transform:translateY(-14px) rotate(3deg)}}
.bk-peek{position:absolute;right:22px;top:-74px;width:96px;animation:peek 5s ease-in-out infinite}
@keyframes peek{0%,100%{transform:translateY(8px) rotate(-6deg)}50%{transform:translateY(0) rotate(4deg)}}
.bk-swim{width:72px;animation:swim 1.8s ease-in-out infinite}
@keyframes swim{0%,100%{transform:translateX(-14px) rotate(-6deg)}50%{transform:translateX(14px) rotate(6deg)}}
.bk-jump{width:150px;margin:0 auto;animation:jump 1.1s cubic-bezier(.3,1.6,.5,1) 1 both}
@keyframes jump{0%{transform:translateY(60px) scale(.6);opacity:0}60%{transform:translateY(-22px) scale(1.05);opacity:1}100%{transform:translateY(0) scale(1)}}
.bk-side{width:120px;margin:4px auto 0;animation:bob 4.6s ease-in-out infinite}
.bk-head{width:34px;height:34px;object-fit:contain;animation:bob 4s ease-in-out infinite}
@media (prefers-reduced-motion:reduce){.waves svg,.bk,.bk-hero,.bk-peek,.bk-swim,.bk-jump,.bk-side,.bk-head{animation:none!important}}

/* ---------- route stepper (a real sequence) ---------- */
.route{position:relative;z-index:3;display:grid;grid-template-columns:repeat(3,1fr);gap:0;max-width:1180px;margin:-56px auto 0;padding:0 28px}
.route .stop{position:relative;padding:18px 18px 16px;background:#fff;border:1px solid var(--line);font-size:13.5px;color:var(--mute)}
.route .stop:first-child{border-radius:var(--r-card) 0 0 var(--r-card)}
.route .stop:last-child{border-radius:0 var(--r-card) var(--r-card) 0}
.route .stop+.stop{border-left:none}
.route .stop b{display:block;font-family:var(--display);color:var(--ink);font-size:17px;letter-spacing:-.01em;margin-bottom:2px}
.route .stop .n{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;border:2px solid var(--line);font-weight:700;font-size:13px;color:var(--mute);margin-bottom:8px;background:#fff}
.route .stop.done .n{background:var(--ok);border-color:var(--ok);color:#fff}
.route .stop.cur{box-shadow:inset 0 -3px 0 var(--pk)}
.route .stop.cur .n{border-color:var(--pk);color:var(--pk)}

/* ---------- layout ---------- */
main{max-width:1180px;margin:0 auto;padding:28px}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:28px;align-items:start}
.aside{position:sticky;top:20px}
.card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 28px;margin-bottom:22px;box-shadow:var(--shadow)}
.card.flat{box-shadow:none}
.card h2{font-family:var(--display);font-size:24px;letter-spacing:-.02em;line-height:1.15;margin:0 0 6px}
.card h3{font-size:15.5px;margin:26px 0 8px}
.card .intro{color:var(--mute);margin:0 0 18px;max-width:64ch}
.muted{color:var(--mute);font-size:13.5px}
.row{display:flex;gap:14px;flex-wrap:wrap}
.row>*{flex:1;min-width:170px}
label{display:block;font-size:13.5px;font-weight:600;color:var(--ink);margin:14px 0 6px}
input,select,textarea{width:100%;padding:10px 12px;border:1px solid #C9D5E2;border-radius:var(--r-ctl);font:inherit;font-size:15px;background:#fff;color:var(--ink);transition:border-color .15s,box-shadow .15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--pk);box-shadow:0 0 0 4px rgba(28,91,170,.12)}
textarea{min-height:92px;resize:vertical}
button{font:inherit;font-weight:600;padding:11px 18px;border-radius:999px;border:1px solid var(--pk);background:var(--pk);color:#fff;cursor:pointer;transition:transform .12s,background .15s,box-shadow .15s}
button:hover{background:#174d93}
button:active{transform:translateY(1px)}
button.ghost{background:#fff;color:var(--pk);border-color:#BFD0E6}
button.ghost:hover{background:#EEF4FB}
button.danger{background:#fff;color:var(--bad);border-color:#EFC2BD}
button.danger:hover{background:var(--badbg)}
button.small{padding:6px 13px;font-size:13px}
button.big{padding:14px 26px;font-size:16px}
button:disabled{opacity:.45;cursor:not-allowed}
.hero button{background:transparent;border-color:rgba(255,255,255,.45)}
.hero button:hover{background:rgba(255,255,255,.12)}

.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:14px;font-weight:500;cursor:pointer;color:var(--ink);margin:0;transition:background .15s,border-color .15s}
.chip input{width:auto;margin:0;accent-color:var(--pk)}
.chip:hover{border-color:#BFD0E6}
.chip.on{background:#EAF2FC;border-color:var(--pk);color:#123A6B}

table{width:100%;border-collapse:collapse;font-size:14px}
th,td{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left;vertical-align:top}
th{font-size:12.5px;color:var(--mute);font-weight:600;background:#F7FAFD}
td input,td select{padding:7px 9px;font-size:14px}
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px}
.tablewrap table th:first-child,.tablewrap table td:first-child{padding-left:14px}

.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12.5px;font-weight:600;background:#EDF2F7;color:#344054;white-space:nowrap}
.badge.ok{background:var(--okbg);color:var(--ok)}
.badge.warn{background:var(--warnbg);color:var(--warn)}
.badge.bad{background:var(--badbg);color:var(--bad)}
.badge.blue{background:#EAF2FC;color:var(--pk)}
.msg{padding:12px 14px;border-radius:12px;margin:12px 0;font-size:14.5px}
.msg.err{background:var(--badbg);color:var(--bad)}
.msg.ok{background:var(--okbg);color:var(--ok)}
.hidden{display:none!important}

/* session panel */
.session{padding:4px 0}
.session .when{font-family:var(--display);font-size:22px;font-weight:700;letter-spacing:-.015em;line-height:1.2}
.session .place{color:var(--mute);font-size:14px;margin-top:4px}
.ticket{border:1px dashed #BFD0E6;border-radius:16px;padding:16px;background:linear-gradient(180deg,#F7FBFF,#fff)}

/* slot board */
.board{display:grid;grid-template-columns:repeat(auto-fill,minmax(132px,1fr));gap:12px}
.day{border:1px solid var(--line);border-radius:16px;padding:12px;background:#fff}
.day h4{margin:0 0 8px;font-family:var(--display);font-size:16px;letter-spacing:-.01em}
.day h4 small{display:block;font-family:var(--body);font-size:12.5px;color:var(--mute);font-weight:500}
.slot{display:block;width:100%;margin:6px 0;padding:8px 0;background:#F4F8FD;color:#123A6B;border:1px solid transparent;font-variant-numeric:tabular-nums;border-radius:10px}
.slot:hover{background:#E6F0FB;border-color:#BFD0E6}
.slot.sel{background:var(--harbor);color:#fff}
.loading{display:flex;flex-direction:column;align-items:center;gap:8px;padding:26px;color:var(--mute);font-size:14px}

/* login */
.login{max-width:440px;margin:30px auto 60px;overflow:visible}

/* modal */
.modal-shade{position:fixed;inset:0;background:rgba(10,35,66,.45);z-index:40;display:grid;place-items:center;padding:20px;animation:fade .2s}
.modal{background:#fff;border-radius:24px;padding:30px 30px 26px;max-width:420px;width:100%;text-align:center;box-shadow:0 30px 60px -20px rgba(10,35,66,.5)}
.modal h3{font-family:var(--display);font-size:26px;margin:10px 0 6px;letter-spacing:-.02em}
@keyframes fade{from{opacity:0}to{opacity:1}}

/* ---------- admin ---------- */
.tabs{display:flex;gap:6px;margin:0 0 22px;flex-wrap:wrap;background:#fff;border:1px solid var(--line);padding:6px;border-radius:999px;width:max-content;max-width:100%}
.tabs button{background:transparent;color:var(--mute);border:none;border-radius:999px;padding:9px 18px}
.tabs button:hover{background:#F1F5FA}
.tabs button.on{background:var(--harbor);color:#fff}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:0;margin-bottom:22px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.kpi{padding:18px 20px;border-right:1px solid var(--line)}
.kpi:last-child{border-right:none}
.kpi .v{font-family:var(--display);font-size:34px;font-weight:800;letter-spacing:-.03em;line-height:1}
.kpi .l{font-size:13px;color:var(--mute);margin-top:6px}
.kpi.alert .v{color:var(--warn)}
.agenda h4{margin:22px 0 8px;font-family:var(--display);font-size:17px;color:var(--harbor);display:flex;align-items:center;gap:8px}
.agenda .item{display:flex;gap:14px;align-items:center;padding:12px 14px;border:1px solid var(--line);border-radius:14px;margin-bottom:8px;background:#fff;flex-wrap:wrap}
.agenda .item .t{font-weight:700;width:104px;font-variant-numeric:tabular-nums}
.agenda .item .n{flex:1;min-width:200px}
.agenda .item .n a{font-weight:600;text-decoration:none;color:var(--ink)}
.agenda .item .n a:hover{color:var(--pk);text-decoration:underline}
.empty{display:flex;flex-direction:column;align-items:center;gap:6px;padding:30px;color:var(--mute)}
.drawer{position:fixed;top:0;right:0;width:min(780px,100%);height:100%;background:#fff;box-shadow:-20px 0 40px rgba(10,35,66,.18);overflow:auto;z-index:30;padding:28px}
.drawer h2{font-family:var(--display);font-size:26px;letter-spacing:-.02em;margin:0 0 10px}
.drawer h3{font-size:15.5px;margin:24px 0 8px}
.drawer .close{float:right}
.shade{position:fixed;inset:0;background:rgba(10,35,66,.35);z-index:29}
.kv{display:grid;grid-template-columns:130px 1fr;gap:6px 14px;font-size:14.5px}
.kv div:nth-child(odd){color:var(--mute)}
.counter{font-size:12.5px;text-align:right;color:var(--ok);margin-top:4px}
.counter.low{color:var(--bad)}
pre.copy{white-space:pre-wrap;background:#F7FAFD;border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:13.5px;font-family:var(--body);margin:0}
.irumi-row{display:grid;grid-template-columns:112px minmax(0,1fr) auto;gap:10px;align-items:start;margin-bottom:8px}
.irumi-row .k{font-size:13px;color:var(--mute);padding-top:9px;font-weight:600}
.session-screen{position:fixed;inset:0;background:var(--foam);overflow:auto;z-index:35}
.session-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:22px;max-width:1500px;margin:0 auto;padding:22px 28px}

@media (max-width:980px){.layout{grid-template-columns:1fr}.aside{position:static}.hero .inner{grid-template-columns:1fr}.bk-hero{width:150px;margin-bottom:-40px}.session-grid{grid-template-columns:1fr}}
@media (max-width:640px){main{padding:16px}.card{padding:20px}.route{grid-template-columns:1fr;padding:0 16px}.route .stop{border-radius:0!important;border-left:1px solid var(--line)!important}.route .stop:first-child{border-radius:var(--r-card) var(--r-card) 0 0!important}.route .stop:last-child{border-radius:0 0 var(--r-card) var(--r-card)!important}.hero .inner,.hero .bar{padding-left:16px;padding-right:16px}.kv{grid-template-columns:1fr}.irumi-row{grid-template-columns:1fr}.kpi{border-right:none;border-bottom:1px solid var(--line)}}

/* mascot placements */
.login-photo{height:210px;background:url(/img/autumn.webp) center 38%/cover;position:relative}
.login-photo::after{content:"";position:absolute;inset:auto 0 0 0;height:60px;background:linear-gradient(transparent,#fff)}
.with-bk{display:flex;align-items:center;gap:10px}
.bk-mini{width:44px;animation:tilt 3.2s ease-in-out infinite;transform-origin:50% 90%}
@keyframes tilt{0%,100%{transform:rotate(-8deg)}50%{transform:rotate(8deg)}}
.good{padding-right:110px;overflow:visible}
.bk-corner{position:absolute;right:10px;bottom:6px;width:96px;animation:bob 5s ease-in-out infinite}
.empty-session{display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px}
.bk-side{width:110px}
.msg.saved{display:flex;align-items:center;gap:10px}
.bk-ok{width:38px;animation:jump .9s cubic-bezier(.3,1.6,.5,1) 1 both}
.bk-admin{position:relative;z-index:2;justify-self:end;width:min(190px,100%);margin-bottom:-46px;animation:bob 4.6s ease-in-out infinite}
@media (prefers-reduced-motion:reduce){.bk-mini,.bk-corner,.bk-ok,.bk-admin{animation:none!important}}
@media (max-width:640px){.good{padding-right:20px}.bk-corner{display:none}}
.courses{display:grid;gap:12px}
.course{border:1px solid var(--line);border-radius:16px;padding:6px 16px 16px;background:linear-gradient(180deg,#FAFCFF,#fff)}
.course label{font-size:12.5px;margin:10px 0 5px}
.course-top{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr) auto;gap:12px;align-items:end}
.course-mid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:12px}
.course-bot{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.daychips{gap:6px}.daychips .chip{padding:6px 11px;font-size:13px}
.timepair{display:flex;align-items:center;gap:8px}.timepair span{color:var(--mute);font-size:13px}
.course .rm{margin-bottom:2px}
.bk-hero{margin-bottom:-112px}
.login-photo{background-position:center 12%}
@media (max-width:720px){.course-top,.course-mid{grid-template-columns:1fr}.course-bot{grid-template-columns:repeat(2,minmax(0,1fr))}}
.course-mid{grid-template-columns:minmax(0,1.75fr) minmax(0,1fr)}
.daychips{flex-wrap:nowrap}.daychips .chip{padding:6px 9px;gap:5px}
@media (max-width:720px){.daychips{flex-wrap:wrap}}