/* 🌐 깊은생각 학생 포털 — 화사하고 깔끔한 파스텔 톤 (2026-09-26 사용자 요청) */
:root{
  --navy:#2D4A77;--blue:#4A6FA5;--sky:#EAF3FF;--mint:#E6F7F1;--cream:#FFF7E6;--lilac:#F1EDFB;--peach:#FFEFE8;
  --bg:#F4F7FC;--card:#FFFFFF;--line:#E6EBF3;--txt:#1F2A3D;--dim:#7B8698;--soft:#AAB4C5;
  --video:#4A6FA5;--homework:#C58A00;--report:#3F8F5F;--jitte:#7A5AC8;--note:#E06C5B;--clinic:#1FA396;--exam:#3F8F5F;--material:#8A94A6;--memo:#8A94A6;
  --shadow:0 6px 24px rgba(45,74,119,.08);--r:18px;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--txt);font-family:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;font-size:15px;line-height:1.55;-webkit-text-size-adjust:100%;-webkit-font-smoothing:antialiased}
body{background:linear-gradient(180deg,#EAF3FF 0%,#F4F7FC 220px)}
a{color:var(--blue);text-decoration:none}
button,input,textarea{font-family:inherit}

/* 상단 */
.top{position:sticky;top:0;z-index:5;display:flex;align-items:center;justify-content:space-between;gap:8px;padding:calc(10px + env(safe-area-inset-top,0px)) 16px 10px;background:rgba(244,247,252,.85);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid rgba(230,235,243,.8)}
.top .brand{display:flex;align-items:center;gap:9px;color:var(--navy);font-weight:800;font-size:15px;letter-spacing:-.01em}
.top .brand img{border-radius:9px;box-shadow:0 2px 8px rgba(45,74,119,.18)}
.top .who{font-size:12px;color:var(--dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;background:#fff;border:1px solid var(--line);border-radius:999px;padding:4px 10px}

.page{max-width:720px;margin:0 auto;padding:16px 16px calc(84px + env(safe-area-inset-bottom,0px))}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;margin:0 0 14px;display:block;color:inherit;box-shadow:var(--shadow)}
a.card{transition:transform .12s ease,box-shadow .12s ease}
a.card:active{transform:scale(.99)}
.h1{font-size:22px;font-weight:800;margin:6px 0 14px;letter-spacing:-.02em}
.h2{font-size:13px;color:var(--dim);margin:20px 0 10px;font-weight:700;letter-spacing:.02em}
.dim{color:var(--dim)}
.crumb{margin:2px 0 8px;font-size:14px}
.crumb a{color:var(--dim)}

/* 하단 탭 */
.bottom{position:fixed;left:0;right:0;bottom:0;z-index:5;display:flex;justify-content:center;gap:4px;padding:8px 12px calc(8px + env(safe-area-inset-bottom,0px));background:rgba(255,255,255,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-top:1px solid var(--line)}
.bottom a{flex:1;max-width:160px;display:flex;flex-direction:column;align-items:center;gap:2px;padding:7px 0 5px;font-size:11px;color:var(--dim);border-radius:14px;transition:background .15s}
.bottom a.on{color:var(--navy);font-weight:800;background:var(--sky)}
.bottom .ic{font-size:20px;line-height:1}

/* 로그인 */
.login{max-width:420px;margin:28px auto;text-align:center;padding:28px 22px}
.login .logo{border-radius:20px;margin-top:2px;box-shadow:0 8px 24px rgba(45,74,119,.2)}
.login h1{font-size:22px;margin:14px 0 4px;font-weight:800;letter-spacing:-.02em}
.login .sub{color:var(--dim);margin:0 0 18px;font-size:14px}
.login label{display:block;text-align:left;font-size:13px;color:var(--dim);margin:12px 0;font-weight:600}
.login input{display:block;width:100%;margin-top:6px;padding:14px 14px;font-size:19px;border:1.5px solid var(--line);border-radius:14px;letter-spacing:.06em;background:#FAFBFE;transition:border-color .15s,box-shadow .15s}
.login input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(74,111,165,.15);background:#fff}
.btn{display:inline-block;width:100%;padding:14px;border:0;border-radius:14px;background:linear-gradient(135deg,#4A6FA5,#2D4A77);color:#fff;font-size:16px;font-weight:800;cursor:pointer;margin-top:10px;box-shadow:0 8px 18px rgba(45,74,119,.25)}
.btn:active{transform:translateY(1px)}
.err{color:#B3261E;background:#FDECEA;border-radius:12px;padding:10px 12px;font-size:14px}
.ok{color:#1E6B3A;background:#E8F5EC}
.hint{font-size:12px;color:var(--dim);margin:12px 0 0}

/* 인사 배너 */
.hello{background:linear-gradient(135deg,#EAF3FF,#E6F7F1);border:0;padding:18px 20px}
.hello .hi{font-size:20px;font-weight:800;letter-spacing:-.02em;margin:0 0 2px}
.hello .sub{color:var(--dim);font-size:13px;margin:0}
.hello .today{display:inline-block;margin-top:10px;font-size:12px;font-weight:700;color:var(--navy);background:#fff;border-radius:999px;padding:4px 10px;box-shadow:0 2px 6px rgba(45,74,119,.08)}

/* 달력 */
.cal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;font-size:17px;font-weight:800}
.navbtn{display:inline-block;width:36px;height:36px;line-height:34px;text-align:center;border:1px solid var(--line);border-radius:12px;font-size:22px;color:var(--navy);background:#fff}
.cal{width:100%;border-collapse:collapse;table-layout:fixed}
.cal th{font-size:11px;color:var(--soft);font-weight:700;padding:4px 0 8px;letter-spacing:.04em}
.cal th.sun{color:#E06C5B}.cal th.sat{color:#4A6FA5}
.cal td{height:54px;text-align:center;vertical-align:top;padding:3px 0}
.cal td a{display:block;color:inherit;height:100%;border-radius:12px;transition:background .12s}
.cal td.has a{background:#F6F9FF}
.cal td.has a:active{background:var(--sky)}
.cal td .dn{display:inline-block;width:30px;height:30px;line-height:30px;border-radius:50%;font-size:14px;color:var(--txt)}
.cal td.empty .dn{color:transparent}
.cal td.today .dn{background:var(--navy);color:#fff;font-weight:800;box-shadow:0 4px 10px rgba(45,74,119,.25)}
.cal td.has .dn{font-weight:800;color:var(--navy)}
.cal td.today.has .dn{color:#fff}
.dots{display:flex;justify-content:center;gap:3px;margin-top:3px}
.d{display:inline-block;width:7px;height:7px;border-radius:50%;background:#C9D1DF}
.d.video{background:var(--video)}.d.homework{background:var(--homework)}.d.report{background:var(--report)}.d.jitte{background:var(--jitte)}.d.note{background:var(--note)}.d.clinic{background:var(--clinic)}.d.exam{background:var(--exam)}
.legend{font-size:12px;color:var(--dim);margin:10px 0 0;display:flex;flex-wrap:wrap;gap:4px 12px;align-items:center}
.legend .d{margin-right:4px}

/* 날짜 카드 */
.daycard .dhead{display:flex;align-items:center;gap:8px;margin-bottom:8px;font-size:15px;font-weight:800}
.tag{font-size:11px;background:var(--navy);color:#fff;border-radius:999px;padding:2px 8px;font-weight:700}
.dlist{display:flex;flex-wrap:wrap;gap:6px}
.chip{display:inline-flex;align-items:center;gap:4px;font-size:12px;font-weight:600;border-radius:999px;padding:4px 11px;background:#EEF1F6;color:#4B5565;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chip.video{background:var(--sky);color:var(--video)}.chip.homework{background:var(--cream);color:#8A6200}.chip.report{background:var(--mint);color:#2F6E48}.chip.jitte{background:var(--lilac);color:#5A3F9E}.chip.note{background:var(--peach);color:#B4463A}.chip.clinic{background:#E3F6F4;color:#177A72}.chip.exam{background:var(--mint);color:#2F6E48}
.chip::before{font-size:12px}
.chip.video::before{content:"▶"}.chip.homework::before{content:"✏️"}.chip.report::before{content:"📊"}.chip.jitte::before{content:"🏫"}.chip.note::before{content:"📝"}.chip.clinic::before{content:"🗓"}.chip.exam::before{content:"📄"}

/* 항목 카드 */
.item{border-left:5px solid var(--line)}
.item.k-video{border-left-color:var(--video)}.item.k-homework{border-left-color:var(--homework)}.item.k-report,.item.k-exam{border-left-color:var(--report)}.item.k-jitte{border-left-color:var(--jitte)}.item.k-note{border-left-color:var(--note)}.item.k-clinic{border-left-color:var(--clinic)}
.item .ihead{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:10px}
.ititle{font-size:15px;font-weight:700}
.vwrap{position:relative;width:100%;aspect-ratio:16/9;background:#0b1220;border-radius:14px;overflow:hidden;box-shadow:0 8px 20px rgba(11,18,32,.18)}
.vwrap iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.hw{white-space:pre-wrap;word-break:break-word;font-family:inherit;margin:4px 0;font-size:15px;line-height:1.6}
.score{font-size:30px;font-weight:900;color:var(--navy);margin:2px 0 10px;letter-spacing:-.02em}
.score .dim{font-size:14px;font-weight:500}
img.report{display:block;width:100%;height:auto;border-radius:14px;border:1px solid var(--line);margin:8px 0;box-shadow:var(--shadow)}
.filelink{display:inline-flex;align-items:center;gap:6px;padding:10px 14px;border:1px solid var(--line);border-radius:12px;background:#F8FAFD;font-weight:700;color:var(--navy)}
.dl{margin-left:8px;font-size:13px;color:var(--dim)}
.check{background:var(--sky);border-radius:12px;padding:8px 12px;font-size:14px}

/* 질문 */
.kinds{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.kind input{display:none}
.kind span{display:inline-block;padding:7px 13px;border:1px solid var(--line);border-radius:999px;font-size:13px;font-weight:600;background:#fff;color:var(--dim)}
.kind input:checked+span{background:var(--navy);color:#fff;border-color:var(--navy)}
form.card label{display:block;font-size:13px;color:var(--dim);margin:12px 0;font-weight:600}
form.card textarea,form.card input[type=file]{display:block;width:100%;margin-top:6px;padding:12px;font-size:15px;border:1.5px solid var(--line);border-radius:14px;font-family:inherit;background:#FAFBFE}
form.card textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(74,111,165,.15);background:#fff}
.qimg{max-width:100%;border-radius:12px;border:1px solid var(--line);margin-top:8px}
.answer{margin-top:10px;padding:12px 14px;background:var(--mint);border-radius:14px}
.q .dim{font-size:12px}

/* 공지 띠 */
.notice-strip{background:linear-gradient(135deg,#FFF7E6,#FFEFE8);border:0;padding:12px 16px}
.notice-strip .nrow{display:block;font-size:14px;color:inherit;padding:3px 0}
.notice-strip .nrow b{color:#8A4B1F}

/* 설치 안내 */
.card h3{margin:0 0 8px;font-size:16px}
.card ol{padding-left:20px;margin:0}
.card ol li{margin:4px 0}