:root {
  --bg:#0a0a0f; --surface:#12121a; --surface2:#1a1a26; --border:#2a2a3e;
  --accent:#00d4aa; --accent2:#7c5cfc; --red:#ff4d6a; --green:#00d4aa;
  --text:#e8e8f0; --text2:#8888aa; --text3:#55556a;
}
/* Light Theme */
body.light {
  --bg: #f0f0f7;
  --surface: #ffffff;
  --surface2: #eaeaf2;
  --border: #d4d4e8;
  --accent: #00a882;
  --accent2: #6040d8;
  --red: #e03050;
  --green: #00a882;
  --text: #1a1a2e;
  --text2: #555577;
  --text3: #888899;
}

*{margin:0;padding:0;box-sizing:border-box;}
body{font-family:'Noto Sans KR',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden;transition:background .2s,color .2s;}
body::before{content:'';position:fixed;inset:0;background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);background-size:40px 40px;opacity:0.3;pointer-events:none;z-index:0;}
.wrap{position:relative;z-index:1;max-width:1400px;margin:0 auto;padding:24px;}

/* Header */
header{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;padding-bottom:20px;border-bottom:1px solid var(--border);}
.logo{font-family:'Space Mono',monospace;font-size:18px;color:var(--accent);letter-spacing:-0.5px;}
.logo span{color:var(--text2);}
.htime{font-family:'Space Mono',monospace;font-size:11px;color:var(--text3);}
.pulse{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--green);margin-right:6px;animation:pulse 2s infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.3;}}

/* Cards */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:20px;}
.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:18px 20px;transition:.2s;}
.card:hover{border-color:var(--accent2);transform:translateY(-2px);}
.card-label{font-size:10px;color:var(--text3);text-transform:uppercase;letter-spacing:1px;font-family:'Space Mono',monospace;margin-bottom:8px;}
.card-val{font-size:22px;font-weight:700;font-family:'Space Mono',monospace;line-height:1;color:var(--text);}
.card-sub{font-size:11px;color:var(--text2);margin-top:5px;}
.up{color:var(--green)!important;} .down{color:var(--red)!important;}

/* Form */
.add-form{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:20px;}
.form-row{display:grid;grid-template-columns:1.4fr .9fr .9fr 1fr 1fr auto;gap:10px;align-items:end;}
.fg{display:flex;flex-direction:column;gap:5px;}
label{font-size:10px;color:var(--text3);text-transform:uppercase;letter-spacing:.8px;font-family:'Space Mono',monospace;}
input,select{background:var(--surface2);border:1px solid var(--border);color:var(--text);font-family:'Space Mono',monospace;font-size:13px;padding:9px 12px;border-radius:8px;outline:none;width:100%;transition:.15s;}
input:focus,select:focus{border-color:var(--accent2);box-shadow:0 0 0 3px rgba(124,92,252,.1);}
input::placeholder{color:var(--text3);}
select option{background:var(--surface2);}
.btn{background:linear-gradient(135deg,var(--accent2),var(--accent));border:none;color:#fff;font-family:'Space Mono',monospace;font-size:13px;font-weight:700;padding:9px 18px;border-radius:8px;cursor:pointer;transition:.15s;white-space:nowrap;}
.btn:hover:not(:disabled){opacity:.85;transform:translateY(-1px);}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;}
.btn-sm{background:none;border:1px solid var(--border);color:var(--text2);font-family:'Space Mono',monospace;font-size:11px;padding:5px 12px;border-radius:6px;cursor:pointer;transition:.15s;}
.btn-sm:hover{border-color:var(--accent2);color:var(--accent2);}
.hint{font-size:10px;color:var(--text3);margin-top:8px;font-family:'Space Mono',monospace;line-height:1.8;}
.hint-br{display:none;}
.form-section-title{font-family:'Space Mono',monospace;font-size:11px;color:var(--text2);text-transform:uppercase;letter-spacing:1px;margin-bottom:12px;}
.account-add-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:12px;padding-top:12px;border-top:1px solid var(--border);}
.account-add-label{font-size:10px;color:var(--text3);text-transform:uppercase;letter-spacing:.8px;font-family:'Space Mono',monospace;}
.account-add-input{width:150px !important;}
.date-input{font-size:10px;padding:4px 8px;width:120px;}

/* Main grid */
.main-grid{display:grid;grid-template-columns:1fr 340px;gap:18px;margin-bottom:18px;}

/* Chart card */
.chart-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:22px;position:relative;}

/* In-graph tooltip */
.chart-tooltip{display:none;position:absolute;background:var(--surface2);border:1px solid var(--border);border-radius:10px;padding:10px 14px;z-index:10;pointer-events:none;min-width:130px;box-shadow:0 4px 20px rgba(0,0,0,.25);}
.ctt-date{font-family:'Space Mono',monospace;font-size:9px;color:var(--text3);margin-bottom:8px;letter-spacing:.5px;}
.ctt-row{display:flex;justify-content:space-between;gap:14px;font-family:'Space Mono',monospace;font-size:11px;margin-bottom:3px;}
.ctt-sym{color:var(--text2);}
.ctt-val{font-weight:700;}
.ctt-total{display:flex;justify-content:space-between;gap:14px;font-family:'Space Mono',monospace;font-size:12px;font-weight:700;margin-top:8px;padding-top:8px;border-top:1px solid var(--border);}
.sec-hdr{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.sec-title{font-family:'Space Mono',monospace;font-size:11px;color:var(--text2);text-transform:uppercase;letter-spacing:1px;}
.tabs{display:flex;gap:4px;}
.tab{background:none;border:1px solid var(--border);color:var(--text3);font-size:10px;font-family:'Space Mono',monospace;padding:4px 10px;border-radius:6px;cursor:pointer;transition:.15s;}
.tab.active{background:var(--accent2);border-color:var(--accent2);color:#fff;}

/* Slider panel */
.slider-panel{display:none;background:var(--surface2);border:1px solid var(--border);border-radius:12px;padding:16px 20px;margin-bottom:16px;}
.slider-date{font-family:'Space Mono',monospace;font-size:12px;font-weight:700;color:var(--accent);margin-bottom:12px;}
.slider-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:14px;}
.sstat{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:10px 12px;}
.sstat-label{font-size:9px;color:var(--text3);text-transform:uppercase;letter-spacing:.8px;font-family:'Space Mono',monospace;margin-bottom:4px;}
.sstat-val{font-family:'Space Mono',monospace;font-size:17px;font-weight:700;}
.stock-chips{display:flex;flex-wrap:wrap;gap:6px;border-top:1px solid var(--border);padding-top:12px;}
.chip{background:var(--surface);border:1px solid var(--border);border-radius:6px;padding:6px 10px;min-width:110px;}
.chip-sym{font-family:'Space Mono',monospace;font-size:11px;font-weight:700;color:var(--accent);}
.chip-price{font-size:10px;color:var(--text2);font-family:'Space Mono',monospace;margin-top:1px;}
.chip-pct{font-family:'Space Mono',monospace;font-size:11px;font-weight:700;margin-top:2px;}
.slider-wrap{margin-top:12px;padding:0 2px;}
input[type=range]{width:100%;accent-color:var(--accent2);cursor:pointer;}
.slider-labels{display:flex;justify-content:space-between;margin-top:3px;}
.slider-labels span{font-family:'Space Mono',monospace;font-size:9px;color:var(--text3);}

/* Chart area */
#chartArea{min-height:220px;display:flex;align-items:center;justify-content:center;}
#mainChart{cursor:crosshair;}
#barScrollWrap::-webkit-scrollbar{height:4px;}
#barScrollWrap::-webkit-scrollbar-track{background:transparent;}
#barScrollWrap::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px;}
#barScrollWrap::-webkit-scrollbar-thumb:hover{background:var(--text3);}
.empty{text-align:center;font-family:'Space Mono',monospace;font-size:11px;color:var(--text3);line-height:2.2;}

/* Holdings */
.holdings-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:22px;display:flex;flex-direction:column;}
.holdings-list{flex:1;overflow-y:auto;max-height:340px;scrollbar-width:thin;scrollbar-color:var(--border) transparent;}
.h-item{display:flex;align-items:center;gap:10px;padding:8px;border-radius:8px;cursor:default;transition:.15s;}
.h-item:hover{background:var(--surface2);}
.h-ticker{font-family:'Space Mono',monospace;font-size:13px;font-weight:700;color:var(--accent);min-width:56px;}
.h-name{flex:1;font-size:11px;color:var(--text2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.h-right{text-align:right;min-width:80px;}
.h-price{font-family:'Space Mono',monospace;font-size:12px;font-weight:700;}
.h-pct{font-family:'Space Mono',monospace;font-size:10px;margin-top:1px;}
.h-del{background:none;border:none;color:var(--text3);cursor:pointer;font-size:13px;padding:3px 5px;border-radius:4px;transition:.15s;line-height:1;}
.h-del:hover{color:var(--red);background:rgba(255,77,106,.1);}
.badge{font-size:8px;font-family:'Space Mono',monospace;padding:1px 5px;border-radius:3px;margin-left:3px;vertical-align:middle;}
.badge-kr{background:rgba(0,212,170,.15);color:var(--green);}
.badge-us{background:rgba(124,92,252,.15);color:var(--accent2);}

/* Bottom */
.bottom-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.alloc-item{display:flex;align-items:center;gap:8px;margin-bottom:8px;}
.alloc-dot{width:9px;height:9px;border-radius:2px;flex-shrink:0;}
.alloc-name{flex:1;font-size:11px;color:var(--text2);font-family:'Space Mono',monospace;}
.alloc-bar-bg{flex:2;height:3px;background:var(--border);border-radius:2px;overflow:hidden;}
.alloc-bar{height:100%;border-radius:2px;transition:width .5s;}
.alloc-pct{font-family:'Space Mono',monospace;font-size:10px;color:var(--text2);min-width:32px;text-align:right;}

/* Toast */
.toast{position:fixed;bottom:20px;right:20px;background:var(--surface2);border:1px solid var(--border);border-radius:10px;padding:12px 18px;font-size:12px;z-index:9999;transform:translateY(80px);opacity:0;transition:all .3s cubic-bezier(.34,1.56,.64,1);max-width:300px;}
.toast.show{transform:translateY(0);opacity:1;}
.toast.ok{border-left:3px solid var(--green);}
.toast.err{border-left:3px solid var(--red);}

/* Spinner */
.spin{display:inline-block;width:13px;height:13px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:sp .7s linear infinite;vertical-align:middle;margin-right:5px;}
@keyframes sp{to{transform:rotate(360deg);}}

/* Theme Toggle Button */
.theme-btn{background:var(--surface2);border:1px solid var(--border);color:var(--text2);width:30px;height:30px;border-radius:8px;cursor:pointer;transition:.15s;display:flex;align-items:center;justify-content:center;padding:0;flex-shrink:0;}
.theme-btn:hover{border-color:var(--accent2);color:var(--accent2);}
.theme-btn svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* Language Switcher */
.lang-switch {
  display: flex;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2px;
  gap: 2px;
}
.lang-btn {
  background: none;
  border: none;
  color: var(--text3);
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  padding: 4px 8px;
  border-radius: 6px;
  cursor: pointer;
  transition: .15s;
}
.lang-btn.active {
  background: var(--accent2);
  color: #fff;
}

/* Account Management */
.acc-tag{display:inline-flex;align-items:center;gap:5px;font-size:10px;font-family:'Space Mono',monospace;padding:3px 9px;border-radius:6px;border:1px solid;background:rgba(255,255,255,.04);}
.acc-tag-del{background:none;border:none;cursor:pointer;color:inherit;opacity:.6;font-size:11px;padding:0 1px;line-height:1;transition:.15s;}
.acc-tag-del:hover{opacity:1;}
.acc-tab{background:none;border:1px solid var(--border);color:var(--text3);font-size:10px;font-family:'Space Mono',monospace;padding:4px 12px;border-radius:20px;cursor:pointer;transition:.15s;}
.acc-tab:hover{border-color:var(--accent2);color:var(--accent2);}
.acc-tab.active{background:var(--accent2);border-color:var(--accent2);color:#fff;}
.acc-chk{display:inline-flex;align-items:center;gap:5px;font-size:10px;font-family:'Space Mono',monospace;cursor:pointer;padding:4px 10px;border-radius:6px;border:1px solid var(--border);background:var(--surface2);}
.acc-chk:hover{border-color:var(--accent2);}
.acc-chk input[type=checkbox]{width:12px;height:12px;accent-color:var(--accent2);cursor:pointer;}

/* Login Modal */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.75);display:flex;align-items:center;justify-content:center;z-index:10000;backdrop-filter:blur(4px);}
.modal-box{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:28px;width:100%;max-width:400px;margin:16px;}
.modal-title{font-family:'Space Mono',monospace;font-size:14px;font-weight:700;color:var(--accent);margin-bottom:8px;}
.modal-desc{font-size:12px;color:var(--text2);margin-bottom:20px;line-height:1.7;}
.btn-google{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;background:#fff;color:#3c4043;border:1px solid #dadce0;border-radius:8px;padding:11px 16px;font-size:13px;font-weight:500;cursor:pointer;transition:.15s;margin-bottom:16px;font-family:'Noto Sans KR',sans-serif;}
.btn-google:hover{background:#f8f8f8;box-shadow:0 1px 4px rgba(0,0,0,.25);}
.modal-or{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.modal-or::before,.modal-or::after{content:'';flex:1;height:1px;background:var(--border);}
.modal-or span{font-size:10px;color:var(--text3);font-family:'Space Mono',monospace;}

/* User Info */
.user-info{display:flex;align-items:center;gap:8px;}
.user-avatar{width:26px;height:26px;border-radius:50%;object-fit:cover;flex-shrink:0;}
.user-avatar-init{width:26px;height:26px;border-radius:50%;background:var(--accent2);color:#fff;font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;font-family:'Space Mono',monospace;flex-shrink:0;}
.user-name{font-size:11px;color:var(--text2);font-family:'Space Mono',monospace;max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ─── Header layout ─── */
.header-controls{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.header-meta{display:flex;align-items:center;gap:10px;}
.header-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}

/* ─── Tablet 1024px ─── */
@media(max-width:1024px){
  .main-grid{grid-template-columns:1fr;}
  .bottom-grid{grid-template-columns:1fr;}
  .holdings-list{max-height:300px;}
}

/* ─── Tablet 768px ─── */
@media(max-width:768px){
  .wrap{padding:14px;}
  .cards{grid-template-columns:repeat(2,1fr);gap:10px;}
  .card{padding:14px 16px;}
  .card-val{font-size:20px;}
  .card-label{font-size:9px;}

  .form-row{grid-template-columns:1fr 1fr 1fr;gap:8px;}
  .add-form{padding:14px;}

  .header-meta{display:none;}
  .sec-hdr{flex-wrap:wrap;gap:8px;}
  .bottom-grid{gap:12px;}
  .slider-stats{gap:8px;}

  .hero-headline{font-size:22px;}
  .intro-grid{grid-template-columns:1fr 1fr;gap:12px;}
}

/* ─── Mobile 600px ─── */
@media(max-width:600px){
  .wrap{padding:10px;}
  .logo{font-size:14px;}
  .header-controls{gap:6px;}
  .header-actions{gap:5px;}
  .cur-label{display:none;}
  .htime{display:none;}
  .user-name{display:none;}
  header{margin-bottom:16px;padding-bottom:12px;}

  /* 카드 */
  .cards{gap:8px;margin-bottom:12px;}
  .card{padding:12px 14px;}
  .card-val{font-size:18px;}
  .card-label{font-size:9px;}
  .card-sub{font-size:10px;}

  /* 폼 */
  .add-form{padding:12px;}
  .form-row{grid-template-columns:1fr 1fr;gap:8px;}
  input:not([type=range]):not([type=date]),select{font-size:16px;}

  /* 차트/보유종목 */
  .chart-card,.holdings-card{padding:14px;}
  .holdings-list{max-height:none;}

  /* 종목추가 폼 */
  .form-section-title{font-size:10px;margin-bottom:10px;}
  .account-add-row{gap:6px;}
  .account-add-input{width:100% !important;flex:1;min-width:0;}
  .date-input{font-size:16px;padding:6px 8px;width:100%;flex:1;}
  .hint-br{display:inline;}
  .hint{font-size:9px;}

  /* 날짜 조회 영역 */
  .sec-hdr > div:last-child{width:100%;justify-content:flex-start;flex-wrap:wrap;}

  /* 히어로/인트로 */
  .hero-banner{padding:20px 16px;margin-bottom:12px;}
  .hero-headline{font-size:18px;line-height:1.45;}
  .hero-eyebrow{font-size:10px;margin-bottom:10px;}
  .hero-sub{font-size:12px;}
  .intro-section{padding:12px;}
  .intro-grid{grid-template-columns:1fr;gap:10px;}
  .intro-text strong{font-size:11px;}
  .intro-text span{font-size:11px;}
  .intro-icon{font-size:18px;}

  /* 슬라이더 */
  .slider-panel{padding:12px 14px;}
  .sstat-val{font-size:15px;}

  /* 언어/통화 버튼 */
  .lang-btn{font-size:9px;padding:3px 6px;}

  /* 섹션 헤더 */
  .sec-title{font-size:10px;}
  .sec-hdr{margin-bottom:12px;}

  /* 푸터 */
  .site-footer{padding:14px 16px;}
  .footer-links{flex-wrap:wrap;justify-content:center;gap:8px;}
  .footer-desc{font-size:10px;}
}

/* ─── Small phone 480px ─── */
@media(max-width:480px){
  .wrap{padding:8px;}
  .cards{gap:6px;}
  .card{padding:10px 12px;}
  .card-val{font-size:16px;}
  .card-label{font-size:8px;}

  /* 폼: 추가버튼 전체 너비 */
  .form-row{grid-template-columns:1fr 1fr;}
  #addBtn{grid-column:span 2;}

  /* 히어로 더 컴팩트 */
  .hero-headline{font-size:16px;}
  .hero-banner{padding:16px 14px;}

  /* 슬라이더 */
  .slider-stats{grid-template-columns:repeat(2,1fr);}
  .chip{min-width:80px;}
  .chip-sym{font-size:10px;}
  .chip-pct{font-size:10px;}

  /* 헤더 */
  header{margin-bottom:12px;padding-bottom:10px;}
  .logo{font-size:13px;}

  /* 폼 */
  .form-section-title{font-size:9px;}
  .account-add-label{font-size:9px;}

  /* 언어/통화 스위처 더 작게 */
  .lang-switch{padding:1px;gap:1px;}
  .lang-btn{font-size:8px;padding:3px 5px;}
}

/* ─── Intro Toggle Button ─── */
.intro-toggle-btn{background:none;border:1px solid var(--border);color:var(--text3);font-size:10px;font-family:'Space Mono',monospace;padding:4px 12px;border-radius:20px;cursor:pointer;transition:.15s;display:flex;align-items:center;gap:5px;}
.intro-toggle-btn:hover{border-color:var(--accent);color:var(--accent);}

/* ─── Hero Banner ─── */
.hero-banner{margin-bottom:20px;padding:36px 32px;background:var(--surface);border:1px solid var(--border);border-radius:16px;text-align:center;position:relative;overflow:hidden;}
.hero-banner::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 50% 0%,rgba(124,92,252,.15) 0%,transparent 70%);pointer-events:none;}
.hero-eyebrow{font-family:'Space Mono',monospace;font-size:11px;color:var(--accent);letter-spacing:2px;text-transform:uppercase;margin-bottom:14px;}
.hero-headline{font-size:28px;font-weight:700;line-height:1.4;color:var(--text);margin-bottom:12px;}
.hero-headline span{color:var(--accent);}
.hero-sub{font-size:13px;color:var(--text2);letter-spacing:.3px;}
@media(max-width:600px){.hero-banner{padding:24px 18px;}.hero-headline{font-size:20px;}}

/* ─── Intro Section ─── */
.intro-section{margin-bottom:24px;padding:16px 20px;background:var(--surface);border:1px solid var(--border);border-radius:14px;}
.intro-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.intro-item{display:flex;align-items:flex-start;gap:12px;}
.intro-icon{font-size:22px;flex-shrink:0;margin-top:2px;}
.intro-text{display:flex;flex-direction:column;gap:4px;}
.intro-text strong{font-size:12px;font-family:'Space Mono',monospace;color:var(--accent);letter-spacing:.3px;}
.intro-text span{font-size:11px;color:var(--text2);line-height:1.65;}
@media(max-width:900px){.intro-grid{grid-template-columns:1fr;gap:12px;}}
@media(max-width:600px){.intro-section{padding:12px 14px;}.intro-text span{font-size:10px;}}

/* ─── Site Footer ─── */
.site-footer{margin-top:32px;padding:20px 24px;background:var(--surface);border:1px solid var(--border);border-radius:14px;text-align:center;}
.footer-inner{display:flex;flex-direction:column;gap:8px;align-items:center;}
.footer-desc{font-size:11px;color:var(--text2);line-height:1.6;max-width:480px;}
.footer-links{display:flex;align-items:center;gap:10px;font-size:11px;font-family:'Space Mono',monospace;}
.footer-links a{color:var(--accent);text-decoration:none;transition:.15s;}
.footer-links a:hover{text-decoration:underline;}
.footer-links span{color:var(--text3);}
.footer-contact-btn{background:none;border:none;color:var(--accent);font-size:11px;font-family:'Space Mono',monospace;cursor:pointer;padding:0;transition:.15s;}
.footer-contact-btn:hover{text-decoration:underline;}

/* Contact Modal Textarea */
#contactMessage{width:100%;background:var(--surface2);border:1px solid var(--border);border-radius:8px;color:var(--text);padding:10px 12px;font-size:13px;font-family:'Noto Sans KR',sans-serif;outline:none;transition:.15s;}
#contactMessage:focus{border-color:var(--accent2);}