:root{
  --accent:#c2593a;
  --primary:#6f4e37;
  --secondary:#d2b48c;
  --coffee:#3f2a20;
  --ink:#3a2a20;
  --paper:#fbf4e6;
  --paper-dark:#efe4ce;
  --line:#d8c7a5;
  --coral:#c2593a;
  --teal:#3f8f86;
  --gold:#d8a23c;
  --olive:#7a8f4a;
  --shadow:0 3px 8px rgba(60,40,20,.25);
}

*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{
  font-family:'Courier New',ui-monospace,Menlo,Consolas,monospace;
  color:var(--ink);
  background:
    radial-gradient(circle at 15% 20%, rgba(0,0,0,.10) 2px, transparent 2.5px),
    radial-gradient(circle at 80% 15%, rgba(0,0,0,.10) 2px, transparent 2.5px),
    radial-gradient(circle at 60% 70%, rgba(0,0,0,.10) 2px, transparent 2.5px),
    radial-gradient(circle at 35% 55%, rgba(0,0,0,.10) 2px, transparent 2.5px),
    radial-gradient(circle at 92% 88%, rgba(0,0,0,.10) 2px, transparent 2.5px),
    radial-gradient(circle at 5% 88%, rgba(0,0,0,.10) 2px, transparent 2.5px),
    linear-gradient(150deg,#a97c4f,#c69a63 40%,#b78752 70%,#9a6c42);
  background-size:auto,auto,auto,auto,auto,auto,cover;
}
body::before{
  content:"";
  position:fixed;inset:0;pointer-events:none;
  background:repeating-linear-gradient(0deg, transparent 0 46px, rgba(0,0,0,.04) 46px 48px),
             repeating-linear-gradient(90deg, transparent 0 46px, rgba(0,0,0,.04) 46px 48px);
}
.app{position:relative;min-height:100%;max-width:560px;margin:0 auto}

.screen{
  padding:16px 16px calc(96px + env(safe-area-inset-bottom));
  min-height:100vh;
}

/* ---------- Header ---------- */
.screen-head{text-align:center;margin:6px 0 18px}
.brand{
  font-size:34px;letter-spacing:6px;font-weight:700;color:#fff;
  text-shadow:0 2px 0 rgba(0,0,0,.25);
  display:inline-block;
  padding:0 14px 6px;
  border-bottom:3px solid rgba(255,255,255,.6);
}
.tagline{color:rgba(255,255,255,.85);font-size:12px;letter-spacing:2px;margin-top:6px}
.section-label{
  color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.3);
  font-size:13px;letter-spacing:2px;margin:20px 4px 10px;
}

/* ---------- Tab panels ---------- */
.tab-panel{display:none}
.tab-panel.active{display:block}

/* ---------- Kraft sleeves ---------- */
.sleeves-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.sleeve{
  position:relative;flex:1 1 150px;max-width:190px;
  background:linear-gradient(115deg,#e3c79a,#cba06b);
  border-radius:8px 8px 14px 14px;
  padding:18px 12px 14px;
  text-align:center;
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.5);
  border-top:3px solid #b98956;
}
.sleeve::before{
  content:"";position:absolute;left:0;right:0;top:14px;height:2px;
  background:repeating-linear-gradient(90deg,rgba(120,80,40,.18) 0 6px,transparent 6px 12px);
}
.sleeve-tack{
  position:absolute;top:-10px;left:50%;transform:translateX(-50%);
  width:16px;height:16px;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,#e8c27a,#a97c2f 70%,#7c5a20);
  box-shadow:0 3px 5px rgba(0,0,0,.4), inset 0 -1px 2px rgba(0,0,0,.4);
  z-index:2;
}
.sleeve-tack::after{content:"";position:absolute;top:4px;left:50%;width:2px;height:2px;background:rgba(255,255,255,.8);transform:translateX(-50%)}
.sleeve-label{display:block;font-size:11px;letter-spacing:1px;color:#5f4426;text-transform:uppercase}
.sleeve-count{
  display:block;font-size:56px;font-weight:700;line-height:1.1;margin-top:2px;
  color:var(--coffee);
  font-family:'Comic Sans MS','Segoe Print',cursive;
  text-shadow:1px 1px 0 rgba(255,255,255,.4);
}

/* ---------- Receipts ---------- */
.receipts{display:flex;flex-direction:column;gap:16px}
.receipt{
  position:relative;
  background:var(--paper);
  padding:14px 16px 12px;
  box-shadow:var(--shadow);
  transform:rotate(-.6deg);
}
.receipt:nth-child(even){transform:rotate(.5deg)}
.receipt::before,.receipt::after{
  content:"";position:absolute;left:0;right:0;height:8px;
  background:radial-gradient(circle at 6px 4px, rgba(0,0,0,.12) 3px, transparent 4px);
  background-size:10px 8px;background-repeat:repeat-x;
}
.receipt::before{top:-4px}
.receipt::after{bottom:-4px}
.receipt-top{display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.receipt-client{font-weight:700;font-size:15px;color:var(--coffee);letter-spacing:.3px;word-break:break-word}
.receipt-date{
  font-size:11px;color:#8a6d4f;white-space:nowrap;
  background:#efe4ce;padding:2px 6px;border:1px dashed var(--line);border-radius:3px;
}
.receipt-notes{
  margin-top:8px;font-size:12px;line-height:1.5;color:#5c4636;
  white-space:pre-wrap;word-break:break-word;padding-left:10px;
  border-left:2px dotted var(--line);
}
.receipt-follow{
  margin-top:8px;font-size:12px;color:var(--coffee);display:flex;align-items:center;gap:7px;padding-left:10px;
}
.follow-a{
  display:inline-flex;align-items:center;justify-content:center;
  width:17px;height:17px;border-radius:50%;border:2px solid #c22a2a;
  color:#c22a2a;font-size:11px;font-weight:700;line-height:1;flex:none;
  box-shadow:inset 0 0 4px rgba(194,42,42,.25);
}
.receipt-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:10px}
.mini-btn{
  border:1px solid var(--line);background:#f0e6d0;color:var(--coffee);
  font-family:inherit;font-size:11px;letter-spacing:.5px;padding:5px 12px;border-radius:4px;cursor:pointer;
}
.mini-btn:active{transform:translateY(1px)}

/* coffee ring stamp */
.stamp{
  position:absolute;top:6px;right:6px;width:42px;height:42px;pointer-events:none;opacity:.5;
  border-radius:50%;background:radial-gradient(circle, transparent 44%, #8a5b33 46%, #8a5b33 52%, transparent 54%);
  transform:rotate(-15deg);
}

/* empty state coffee ring */
.empty{
  position:relative;text-align:center;padding:60px 20px 70px;color:rgba(255,255,255,.9);
}
.empty-ring{
  width:120px;height:120px;margin:0 auto 20px;
  border-radius:50%;background:radial-gradient(circle, transparent 62%, rgba(90,55,25,.55) 64%, rgba(90,55,25,.55) 70%, transparent 72%);
}
.empty-msg{font-size:14px;letter-spacing:1px;text-shadow:0 1px 3px rgba(0,0,0,.4)}

/* ---------- Search ---------- */
.search-wrap{margin-bottom:16px}
.search-input{
  width:100%;padding:13px 14px;border-radius:8px;border:none;
  background:rgba(251,244,230,.96);box-shadow:var(--shadow);
  font-family:inherit;font-size:15px;color:var(--ink);
}
.search-input::placeholder{color:#9c8367}

/* ---------- Clients ---------- */
.client-letter{
  color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.3);
  font-size:18px;font-weight:700;margin:18px 4px 8px;letter-spacing:1px;
}
.client-chip{
  display:block;width:100%;text-align:left;padding:13px 14px;margin-bottom:8px;
  background:rgba(251,244,230,.94);border:none;border-radius:8px;
  box-shadow:var(--shadow);font-family:inherit;font-size:14px;font-weight:700;color:var(--coffee);cursor:pointer;
}
.client-chip:active{transform:translateY(1px)}
.client-chip .client-num{float:right;color:#a08a6b;font-weight:400;font-size:11px}
.client-log .back-link{
  display:inline-block;margin-bottom:12px;color:#fff;font-size:12px;letter-spacing:1px;
  text-decoration:underline;text-underline-offset:3px;cursor:pointer;background:none;border:none;font-family:inherit;
}

/* ---------- Form ---------- */
.note-form{
  background:var(--paper);padding:20px 16px 6px;border-radius:8px;box-shadow:var(--shadow);
}
.field{margin-bottom:16px}
.field label{display:block;font-size:11px;letter-spacing:1.5px;color:#7a5f42;text-transform:uppercase;margin-bottom:6px}
.field input,.field textarea{
  width:100%;padding:12px;border:1px solid var(--line);border-radius:5px;
  background:#fffdf6;font-family:inherit;font-size:15px;color:var(--ink);
}
.field textarea{resize:vertical}
.field input:focus,.field textarea:focus{outline:2px solid var(--secondary);outline-offset:1px}
.field input.invalid,.field textarea.invalid{border-color:#c22a2a;background:#fdf0ee}
.field-error{color:#c22a2a;font-size:11px;margin-top:4px;min-height:14px}
.save-btn{
  width:100%;padding:14px;border:none;border-radius:8px;
  background:var(--accent);color:#fff;font-family:inherit;font-size:16px;font-weight:700;letter-spacing:1px;
  box-shadow:var(--shadow);cursor:pointer;
}
.save-btn:active{transform:translateY(1px)}
.form-status{font-size:12px;margin:12px 0;min-height:16px;color:var(--coffee);text-align:center}

/* ---------- Tab bar ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;margin:0 auto;max-width:560px;
  display:flex;z-index:50;
  background:
    repeating-linear-gradient(0deg, #5a3a22 0 2px, #6f4a2c 2px 5px, #5a3a22 5px 7px),
    linear-gradient(#6b4528,#57361e);
  border-top:4px solid #3f2a1a;
  box-shadow:0 -6px 14px rgba(0,0,0,.35);
  padding-bottom:env(safe-area-inset-bottom);
}
.tab{
  flex:1;background:none;border:none;color:#d8c4a4;cursor:pointer;
  padding:10px 0 12px;display:flex;flex-direction:column;align-items:center;gap:6px;
}
.tab .tab-label{font-size:10px;letter-spacing:1px;font-family:'Courier New',monospace}
.tab.active{color:#fff}

/* mugs */
.mug{
  position:relative;width:22px;height:20px;display:block;
  background:linear-gradient(#b09c82,#9a8468);
  border-radius:4px 4px 5px 5px;
  box-shadow:inset 0 -2px 3px rgba(0,0,0,.3);
}
.mug::before{ /* handle */
  content:"";position:absolute;right:-7px;top:5px;width:6px;height:9px;
  border:2px solid #9a8468;border-left:none;border-radius:0 5px 5px 0;
}
.mug-coffee{
  position:absolute;left:2px;right:2px;top:2px;bottom:3px;border-radius:2px 2px 3px 3px;
  background:transparent;transition:all .2s;opacity:0;
}
.mug-gloss{
  position:absolute;left:3px;top:2px;width:4px;height:9px;border-radius:2px;
  background:rgba(255,255,255,.5);opacity:0;transition:all .2s;
}
.mug-steam{
  position:absolute;left:50%;top:-7px;transform:translateX(-50%);width:8px;height:8px;
  border-left:1.5px solid #e8d9c0;border-radius:50%;opacity:0;
}
.mug-steam::before,.mug-steam::after{
  content:"";position:absolute;left:50%;bottom:0;width:1.5px;height:6px;
  background:#e8d9c0;border-radius:50%;opacity:.7;
}
.mug-steam::before{transform:translateX(-3px) rotate(-12deg)}
.mug-steam::after{transform:translateX(3px) rotate(12deg)}

.mug-teal{background:linear-gradient(#8fb8b0,#5f8d85)}
.mug-teal::before{border-color:#6b9890}
.mug-gold{background:linear-gradient(#d9b878,#bd9852)}
.mug-gold::before{border-color:#c6a35c}
.mug-olive{background:linear-gradient(#a6b47e,#83945a)}
.mug-olive::before{border-color:#8da06a}

/* active mug */
.tab.active .mug{
  box-shadow:0 6px 9px rgba(0,0,0,.45), inset 0 -2px 3px rgba(0,0,0,.3);
}
.tab.active .mug-coffee{
  background:radial-gradient(circle at 55% 30%, #4a2f20, #2a1a10 80%);
  opacity:1;
}
.tab.active .mug-gloss{opacity:1}
.tab.active .mug-steam{opacity:1;animation:steam 1.6s ease-in-out infinite}
@keyframes steam{
  0%{transform:translateX(-50%) translateY(0) scaleY(.8);opacity:.3}
  50%{opacity:.9;transform:translateX(-50%) translateY(-3px) scaleY(1)}
  100%{opacity:.3;transform:translateX(-50%) translateY(0) scaleY(.8)}
}