/* ============================================================
   Sustainable Life System — UI
   Palette: circadian dawn — deep indigo night warming to amber morning
   ============================================================ */
:root{
  color-scheme: light;
  --night:#141a2e;
  --night-2:#1d2540;
  --ink:#20263a;
  --paper:#f6f4ef;
  --card:#ffffff;
  --surface:#eceadf;
  --surface-hover:#eeece3;
  --input-bg:#fcfbf8;
  --line:#e4e1d8;
  --line-strong:#cfcabc;
  --muted:#6b7285;
  --text:#252a3a;
  --indigo:#3a4a86;
  --indigo-soft:#eef0fb;
  --dawn:#e0894b;      /* amber morning accent */
  --dawn-soft:#fbeede;
  --moss:#4a7a5c;
  --moss-soft:#e7f1ea;
  --danger:#b5493f;
  --danger-soft:#f7e7e5;
  --radius:14px;
  --radius-sm:9px;
  --shadow:0 1px 2px rgba(20,26,46,.05), 0 8px 24px rgba(20,26,46,.06);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme: dark;
    --ink:#eef0f8;
    --paper:#11131c;
    --card:#1a1d29;
    --surface:#242838;
    --surface-hover:#2c3142;
    --input-bg:#1e2230;
    --line:#2a2e40;
    --line-strong:#3c4258;
    --muted:#9198b0;
    --text:#e7e9f2;
    --indigo:#7d94e0;
    --indigo-soft:#232a45;
    --dawn:#e8a06a;
    --dawn-soft:#332619;
    --moss:#7cbd93;
    --moss-soft:#1c2e22;
    --danger:#e2897c;
    --danger-soft:#3a2220;
    --shadow:0 1px 2px rgba(0,0,0,.25), 0 8px 24px rgba(0,0,0,.3);
  }
}
:root[data-theme="dark"]{
  color-scheme: dark;
  --ink:#eef0f8;
  --paper:#11131c;
  --card:#1a1d29;
  --surface:#242838;
  --surface-hover:#2c3142;
  --input-bg:#1e2230;
  --line:#2a2e40;
  --line-strong:#3c4258;
  --muted:#9198b0;
  --text:#e7e9f2;
  --indigo:#7d94e0;
  --indigo-soft:#232a45;
  --dawn:#e8a06a;
  --dawn-soft:#332619;
  --moss:#7cbd93;
  --moss-soft:#1c2e22;
  --danger:#e2897c;
  --danger-soft:#3a2220;
  --shadow:0 1px 2px rgba(0,0,0,.25), 0 8px 24px rgba(0,0,0,.3);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--font);
  color:var(--text);
  background:
    radial-gradient(1200px 500px at 80% -10%, var(--dawn-soft), transparent 60%),
    var(--paper);
  min-height:100vh;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}

/* ---------- Auth pages ---------- */
.auth-body{
  display:flex;align-items:center;justify-content:center;min-height:100vh;padding:24px;
  background:
    radial-gradient(900px 500px at 50% -20%, #2a3357, transparent 60%),
    linear-gradient(180deg,var(--night),var(--night-2));
}
.auth-card{
  width:100%;max-width:380px;background:var(--card);border-radius:var(--radius);
  padding:34px 30px;box-shadow:0 20px 60px rgba(0,0,0,.35);
}
.auth-card h1{font-family:var(--serif);font-size:26px;margin:0 0 2px;letter-spacing:-.2px}
.auth-card .muted{margin:0 0 20px}
.auth-card label{display:block;font-size:13px;color:var(--muted);margin-bottom:14px}
.auth-card input{
  display:block;width:100%;margin-top:6px;padding:11px 12px;font-size:15px;
  border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--input-bg);color:var(--text);
}
.auth-card input:focus{outline:none;border-color:var(--indigo);box-shadow:0 0 0 3px var(--indigo-soft)}

.muted{color:var(--muted)}
.small{font-size:13px}
code{background:var(--surface);padding:2px 6px;border-radius:5px;font-size:13px}

.alert{padding:11px 13px;border-radius:var(--radius-sm);font-size:14px;margin-bottom:16px}
.alert.err{background:var(--danger-soft);color:var(--danger)}
.alert.ok{background:var(--moss-soft);color:var(--moss)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;cursor:pointer;
  font-family:var(--font);font-size:14px;font-weight:600;border:1px solid transparent;
  padding:9px 15px;border-radius:var(--radius-sm);transition:.15s;text-decoration:none;
  background:var(--surface);color:var(--text);
}
.btn:hover{filter:brightness(.97)}
.btn.primary{background:var(--indigo);color:#fff}
.btn.primary:hover{filter:brightness(1.1)}
.btn.ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn.ghost:hover{background:var(--surface-hover)}
.btn.small{padding:6px 11px;font-size:13px}
.btn.block{width:100%;margin-top:8px}
.btn.danger{background:var(--danger-soft);color:var(--danger)}
.btn.danger:hover{filter:brightness(.94)}
.theme-toggle{
  border:1px solid var(--line-strong);background:var(--surface);color:var(--text);
  cursor:pointer;font-size:15px;line-height:1;padding:8px 10px;border-radius:8px;transition:.15s;
}
.theme-toggle:hover{background:var(--surface-hover)}

/* ---------- Topbar ---------- */
.topbar{
  position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:20px;
  padding:12px 22px;background:color-mix(in srgb, var(--paper) 85%, transparent);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brand{font-family:var(--serif);font-size:19px;font-weight:600;letter-spacing:-.2px;white-space:nowrap}
.tabs{display:flex;gap:2px;margin:0 auto;background:var(--surface);padding:4px;border-radius:11px}
.tab{
  border:none;background:transparent;cursor:pointer;font-family:var(--font);font-weight:600;
  font-size:14px;color:var(--muted);padding:7px 16px;border-radius:8px;transition:.15s;
}
.tab.active{background:var(--card);color:var(--ink);box-shadow:var(--shadow)}
.user{display:flex;align-items:center;gap:12px}

.wrap{max-width:920px;margin:0 auto;padding:26px 22px 80px}

.panel{display:none;animation:fade .25s ease}
.panel.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}

.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.panel-head h2{font-family:var(--serif);font-size:22px;margin:0;letter-spacing:-.2px}

/* ---------- Day types / blocks ---------- */
.daytypes{display:flex;flex-direction:column;gap:26px}
.daytype{background:transparent}
.daytype-head{
  display:flex;align-items:baseline;gap:12px;padding-bottom:10px;margin-bottom:14px;
  border-bottom:2px solid var(--line-strong);
}
.daytype-head .dt-name{font-family:var(--serif);font-size:20px;font-weight:600;color:var(--indigo)}
.daytype-head .dt-sub{font-size:13px;color:var(--muted)}
.daytype-head .dt-actions{margin-left:auto;display:flex;gap:6px}

.blocks{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:680px){.blocks{grid-template-columns:1fr}}

.block-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px 16px 14px;box-shadow:var(--shadow);position:relative;
}
.block-card .bc-time{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.03em;
  color:var(--dawn);background:var(--dawn-soft);padding:3px 9px;border-radius:20px;margin-bottom:8px;
}
.block-card h4{margin:0 0 8px;font-size:16px;letter-spacing:-.1px}
.block-card dl{margin:0;font-size:13.5px}
.block-card dt{color:var(--muted);font-weight:600;font-size:11.5px;text-transform:uppercase;letter-spacing:.04em;margin-top:8px}
.block-card dd{margin:2px 0 0;color:var(--text)}
.bc-actions{display:flex;gap:6px;margin-top:12px;padding-top:10px;border-top:1px dashed var(--line)}
.bc-actions .btn{flex:1}
.add-block{
  border:1.5px dashed var(--line-strong);background:transparent;border-radius:var(--radius);
  min-height:60px;color:var(--muted);font-weight:600;cursor:pointer;font-size:14px;
  display:flex;align-items:center;justify-content:center;transition:.15s;
}
.add-block:hover{border-color:var(--indigo);color:var(--indigo);background:var(--indigo-soft)}

/* ---------- Tasks ---------- */
.add-row{display:flex;gap:8px;margin-bottom:18px;flex-wrap:wrap}
.add-row input[type=text],.add-row input:not([type]){flex:1;min-width:180px}
.add-row input[type=date]{min-width:150px}
.add-row input{padding:10px 12px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);font-size:14px;background:var(--input-bg);color:var(--text)}
.add-row input:focus{outline:none;border-color:var(--indigo);box-shadow:0 0 0 3px var(--indigo-soft)}

.tasklist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.task{
  display:flex;align-items:center;gap:12px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:12px 14px;box-shadow:var(--shadow);
}
.task .cb{
  width:20px;height:20px;border:2px solid var(--line-strong);border-radius:6px;cursor:pointer;
  flex:none;display:flex;align-items:center;justify-content:center;transition:.15s;
}
.task .cb.on{background:var(--moss);border-color:var(--moss)}
.task .cb.on::after{content:"✓";color:#fff;font-size:13px;font-weight:800}
.task .t-title{flex:1;font-size:15px}
.task.done .t-title{text-decoration:line-through;color:var(--muted)}
.task .t-due{font-size:12px;color:var(--dawn);font-weight:600}
.task .t-tools{display:flex;gap:4px;opacity:0;transition:.15s}
.task:hover .t-tools{opacity:1}
.icon-btn{border:none;background:transparent;cursor:pointer;color:var(--muted);padding:5px;border-radius:6px;font-size:14px}
.icon-btn:hover{background:var(--surface-hover);color:var(--text)}

/* ---------- Habits ---------- */
.habitlist{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:680px){.habitlist{grid-template-columns:1fr}}
.habit{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px;
}
.habit .h-top{display:flex;align-items:flex-start;gap:10px}
.habit .h-name{font-size:15px;font-weight:600;flex:1}
.habit .h-tools{display:flex;gap:2px}
.habit .h-bottom{display:flex;align-items:center;justify-content:space-between}
.streak{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted)}
.streak b{font-size:22px;color:var(--dawn);font-family:var(--serif)}
.flame{font-size:18px}
.mark-btn{
  border:1px solid var(--line-strong);background:var(--input-bg);cursor:pointer;font-weight:600;font-size:13px;
  padding:8px 14px;border-radius:20px;transition:.15s;color:var(--text);
}
.mark-btn:hover{border-color:var(--moss)}
.mark-btn.done{background:var(--moss);border-color:var(--moss);color:#fff}

/* ---------- Notes ---------- */
.notelist{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:680px){.notelist{grid-template-columns:1fr}}
.note{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;box-shadow:var(--shadow);
}
.note h4{margin:0 0 6px;font-size:16px;font-family:var(--serif)}
.note .n-body{font-size:13.5px;color:var(--text);white-space:pre-wrap;max-height:180px;overflow:auto}
.note .n-foot{display:flex;justify-content:space-between;align-items:center;margin-top:12px;padding-top:10px;border-top:1px dashed var(--line)}
.note .n-date{font-size:11.5px;color:var(--muted)}
.note .n-tools{display:flex;gap:4px}

/* ---------- Modal ---------- */
.modal-overlay{
  position:fixed;inset:0;background:rgba(20,26,46,.42);backdrop-filter:blur(3px);
  display:flex;align-items:center;justify-content:center;z-index:50;padding:20px;
}
.modal-overlay[hidden]{display:none}
.modal{
  background:var(--card);border-radius:var(--radius);width:100%;max-width:520px;
  max-height:88vh;display:flex;flex-direction:column;box-shadow:0 30px 80px rgba(0,0,0,.35);
  animation:pop .2s ease;
}
@keyframes pop{from{opacity:0;transform:scale(.97)}to{opacity:1;transform:none}}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}
.modal-head h3{margin:0;font-family:var(--serif);font-size:19px}
.modal-head .x{border:none;background:transparent;font-size:24px;line-height:1;cursor:pointer;color:var(--muted)}
.modal-body{padding:18px 20px;overflow:auto}
.modal-body label{display:block;font-size:12.5px;color:var(--muted);font-weight:600;margin-bottom:14px}
.modal-body input,.modal-body textarea{
  display:block;width:100%;margin-top:6px;padding:10px 12px;font-size:14px;font-family:var(--font);
  border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--input-bg);color:var(--text);
}
.modal-body textarea{resize:vertical;min-height:90px;line-height:1.5}
.modal-body input:focus,.modal-body textarea:focus{outline:none;border-color:var(--indigo);box-shadow:0 0 0 3px var(--indigo-soft)}
.modal-foot{display:flex;justify-content:flex-end;gap:8px;padding:16px 20px;border-top:1px solid var(--line)}

/* ---------- Toast ---------- */
.toast{
  position:fixed;bottom:24px;left:50%;transform:translateX(-50%);
  background:var(--night);color:#fff;padding:11px 18px;border-radius:10px;font-size:14px;
  box-shadow:0 10px 30px rgba(0,0,0,.3);z-index:60;animation:rise .2s ease;
}
@keyframes rise{from{opacity:0;transform:translate(-50%,8px)}to{opacity:1;transform:translate(-50%,0)}}

.empty{color:var(--muted);font-size:14px;padding:30px;text-align:center;border:1.5px dashed var(--line-strong);border-radius:var(--radius)}

@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* ---------- Theme toggle (auth pages) ---------- */
.theme-toggle-fixed{
  position:fixed;top:16px;right:16px;z-index:10;
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);color:#fff;
  cursor:pointer;font-size:16px;line-height:1;padding:9px 11px;border-radius:10px;
  backdrop-filter:blur(6px);transition:.15s;
}
.theme-toggle-fixed:hover{background:rgba(255,255,255,.16)}

/* ---------- Responsive ---------- */
@media(max-width:640px){
  .topbar{flex-wrap:wrap;row-gap:8px;padding:10px 14px}
  .brand{font-size:17px}
  .tabs{order:3;width:100%;margin:0;overflow-x:auto;-ms-overflow-style:none;scrollbar-width:none}
  .tabs::-webkit-scrollbar{display:none}
  .tab{white-space:nowrap}
  .user{margin-left:auto}
  .wrap{padding:16px 14px 70px}
  .panel-head{flex-wrap:wrap;row-gap:10px}
  .daytype-head{flex-wrap:wrap;row-gap:6px}
  .add-row{flex-direction:column;align-items:stretch}
  .add-row input,.add-row button{width:100%}
  .modal-overlay{padding:0}
  .modal{max-width:none;width:100%;height:100%;max-height:100%;border-radius:0}
}
@media(max-width:420px){
  .auth-card{padding:26px 20px}
  .toast{left:12px;right:12px;transform:none;text-align:center}
  @keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
}