/* MailTag — logged-in app styles. Matches public/index.html. Dark mode via prefers-color-scheme.
   Optional font: <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap" rel="stylesheet"> */

:root{
  --bg:#f7f7fb; --surface:#ffffff; --surface-2:#f2f3f8;
  --text:#0f1222; --text-2:#4a4f66; --muted:#7a7f96; --border:#e4e6ef;
  --accent:#4f46e5; --accent-hover:#6366f1; --accent-ink:#ffffff; --accent-soft:#eef0ff;
  --ok:#15803d; --ok-bg:#dcfce7; --warn:#b45309; --warn-bg:#fef3c7; --err:#b91c1c; --err-bg:#fee2e2;
  --danger:#dc2626; --danger-hover:#ef4444;
  --code-bg:#0f1222; --code-text:#e6e8f2;
  --radius:12px; --shadow:0 1px 2px rgba(15,18,34,.05),0 4px 16px rgba(15,18,34,.06);
  --font:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0b0d17; --surface:#141827; --surface-2:#1b2033;
    --text:#eef0f8; --text-2:#b6bad0; --muted:#8a8fa8; --border:#262b40;
    --accent:#818cf8; --accent-hover:#a5b4fc; --accent-ink:#0b0d17; --accent-soft:#1e2140;
    --ok:#86efac; --ok-bg:#0f2e1c; --warn:#fcd34d; --warn-bg:#3a2a0c; --err:#fca5a5; --err-bg:#3b1518;
    --danger:#ef4444; --danger-hover:#f87171;
    --code-bg:#070910;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 6px 20px rgba(0,0,0,.3);
  }
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.55 var(--font);-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.2;letter-spacing:-.015em;margin:0 0 12px}
h1{font-size:26px;font-weight:800}
h2{font-size:20px;font-weight:700}
h3{font-size:16px;font-weight:700}
p{margin:0 0 12px}
hr{border:0;border-top:1px solid var(--border);margin:24px 0}
code{font-family:var(--mono);font-size:.9em;background:var(--surface-2);padding:1px 5px;border-radius:5px}

.container{max-width:1040px;margin:0 auto;padding:28px 20px 64px}
.muted{color:var(--muted)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media (max-width:760px){.grid-2{grid-template-columns:1fr}}

/* nav */
.nav{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}
.nav .container,.nav-inner{display:flex;align-items:center;gap:20px;min-height:60px;padding-top:0;padding-bottom:0;flex-wrap:wrap}
.nav .brand{font-weight:800;font-size:18px;color:var(--text);letter-spacing:-.02em;margin-right:auto;display:flex;align-items:center;gap:9px}
.nav .brand:hover{text-decoration:none}
.nav a{color:var(--text-2);font-weight:500}
.nav a:hover,.nav a.active{color:var(--text);text-decoration:none}
.nav a.active{box-shadow:inset 0 -2px 0 var(--accent)}
.nav form{margin:0}
@media (max-width:600px){.nav .container,.nav-inner{gap:12px;padding-top:10px;padding-bottom:10px}.nav .brand{width:100%}}

/* card */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);margin-bottom:20px}
.card > :last-child{margin-bottom:0}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.card-head h2,.card-head h3{margin:0}

/* buttons */
.btn,button,input[type=submit]{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 16px;border-radius:9px;border:1px solid var(--border);background:var(--surface);color:var(--text);font:600 14px/1.2 var(--font);cursor:pointer;text-decoration:none;white-space:nowrap;transition:background .15s,border-color .15s,transform .05s}
.btn:hover,button:hover{background:var(--surface-2);text-decoration:none}
.btn:active,button:active{transform:translateY(1px)}
.btn:disabled,button:disabled{opacity:.55;cursor:not-allowed}
.btn-primary,button.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn-primary:hover,button.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}
.btn-danger,button.btn-danger{background:var(--danger);border-color:var(--danger);color:#fff}
.btn-danger:hover,button.btn-danger:hover{background:var(--danger-hover);border-color:var(--danger-hover)}
.btn-ghost,button.btn-ghost{background:transparent;border-color:transparent;color:var(--text-2)}
.btn-ghost:hover,button.btn-ghost:hover{background:var(--surface-2);color:var(--text)}
.btn-sm{padding:5px 10px;font-size:13px;border-radius:7px}
.btn-block{width:100%}
.actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}

/* flash */
.flash{padding:12px 16px;border-radius:10px;margin-bottom:18px;border:1px solid var(--border);background:var(--surface-2);color:var(--text)}
.flash-ok{background:var(--ok-bg);border-color:transparent;color:var(--ok)}
.flash-error{background:var(--err-bg);border-color:transparent;color:var(--err)}

/* forms */
form{margin:0}
.form-row{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.form-row.inline{flex-direction:row;align-items:center;gap:10px}
label{font-weight:600;font-size:14px;color:var(--text)}
.hint{font-size:13px;color:var(--muted);font-weight:400}
input,select,textarea{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:9px;background:var(--surface);color:var(--text);font:15px/1.4 var(--font);transition:border-color .15s,box-shadow .15s}
input[type=checkbox],input[type=radio]{width:auto;accent-color:var(--accent)}
input[type=submit]{width:auto}
textarea{min-height:96px;resize:vertical}
select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 17px) 50%,calc(100% - 12px) 50%;background-size:5px 5px;background-repeat:no-repeat;padding-right:32px}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
input::placeholder,textarea::placeholder{color:var(--muted)}

/* tables */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.table{width:100%;border-collapse:collapse;font-size:14px}
table.table th,table.table td{padding:11px 12px;text-align:left;border-bottom:1px solid var(--border);vertical-align:middle}
table.table th{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);background:var(--surface-2)}
table.table tr:last-child td{border-bottom:0}
table.table tbody tr:hover{background:var(--surface-2)}
table.table td.num,table.table th.num{text-align:right;font-variant-numeric:tabular-nums}

/* stats */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:16px;margin-bottom:20px}
.stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow)}
.stat .label,.stat-label{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.stat .value,.stat-value{font-size:26px;font-weight:800;letter-spacing:-.02em;margin-top:4px;font-variant-numeric:tabular-nums}

/* badges (status) */
.badge{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;padding:2px 9px;border-radius:999px;background:var(--surface-2);color:var(--text-2);white-space:nowrap}
.badge-ok{background:var(--ok-bg);color:var(--ok)}
.badge-warn{background:var(--warn-bg);color:var(--warn)}
.badge-err{background:var(--err-bg);color:var(--err)}

/* category chip. Default accent; set a custom color with style="--chip:#dc2626" */
.chip{--chip:var(--accent);display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;white-space:nowrap;color:var(--chip);background:color-mix(in srgb,var(--chip) 14%,transparent)}
.chip::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.chip-urgent{--chip:#dc2626}
.chip-reply{--chip:#d97706}
.chip-fyi{--chip:#2563eb}
.chip-newsletter{--chip:#7c3aed}
.chip-receipt{--chip:#059669}
.chip-promotions{--chip:#db2777}
.chip-notification{--chip:#64748b}
@media (prefers-color-scheme:dark){
  .chip{background:color-mix(in srgb,var(--chip) 22%,transparent);color:color-mix(in srgb,var(--chip) 55%,#fff)}
}

/* code */
pre.code{background:var(--code-bg);color:var(--code-text);font:13px/1.6 var(--mono);padding:16px 18px;border-radius:10px;overflow-x:auto;margin:0 0 16px;white-space:pre}
pre.code code{background:none;padding:0;color:inherit;font-size:inherit}

/* auth pages (login/signup) */
.auth-card{max-width:420px;margin:8vh auto 40px;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:32px 28px;box-shadow:var(--shadow)}
.auth-card h1{font-size:24px;text-align:center}
.auth-card .muted{text-align:center}
.auth-card .btn-primary{width:100%;padding:11px 16px;font-size:15px}
.auth-card .brand{display:block;text-align:center;font-weight:800;font-size:20px;color:var(--text);margin-bottom:18px}
@media (max-width:480px){.auth-card{margin-top:24px;padding:26px 20px;border-radius:14px}}

/* utilities */
.text-right{text-align:right}
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.empty{text-align:center;padding:36px 16px;color:var(--muted)}

/* ---------- app page helpers ---------- */
.nav-inner{display:flex;align-items:center;gap:18px;min-height:60px}
.nav-inner nav{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
form.inline{display:inline}
.block{display:block;width:100%}
.small{font-size:13px}
.nowrap{white-space:nowrap}
.num{text-align:right;font-variant-numeric:tabular-nums}
.err-text{color:var(--danger)}
.narrow{max-width:560px;margin-left:auto;margin-right:auto}
.footer{padding:32px 16px;font-size:13px;text-align:center}
.banner{display:flex;flex-wrap:wrap;gap:10px;align-items:center;background:var(--accent-soft)}
.banner-warn{border-color:#f59e0b}
.card{overflow-x:auto}
.stat-value{font-size:26px;font-weight:700;letter-spacing:-.02em}
.category-row{display:grid;grid-template-columns:44px minmax(120px,1fr) minmax(200px,2.5fr) minmax(160px,1.5fr) auto;gap:10px;align-items:start;padding:12px 0;border-top:1px solid var(--border)}
.category-row input[type=color]{width:40px;height:38px;padding:2px;border-radius:8px}
.category-row .actions{display:flex;gap:6px}
.playground-result{margin-top:14px}
.bar-row{display:grid;grid-template-columns:110px 1fr 56px;gap:8px;align-items:center;font-size:13px;margin:4px 0}
.bar{height:8px;border-radius:99px;background:var(--surface-2);overflow:hidden}
.bar span{display:block;height:100%;background:var(--accent)}
.bar-num{text-align:right;color:var(--muted);font-variant-numeric:tabular-nums}
.plan h3{margin-top:0}
details summary{cursor:pointer;color:var(--text-2);margin:8px 0}
@media (max-width:720px){
  .category-row{grid-template-columns:44px 1fr}
  .category-row textarea,.category-row input[type=url],.category-row .actions{grid-column:1/-1}
}
.nav a.btn-primary{color:var(--accent-ink)}

/* ---------- minimal theme (matches landing) ---------- */
:root,:root:not([data-theme="light"]){
  --bg:#f4f4f4; --surface:#f4f4f4; --surface-2:#ececec;
  --text:#111111; --text-2:#3a3a3a; --muted:#8a8a8a; --border:#dcdcdc;
  --accent:#111111; --accent-hover:#333333; --accent-ink:#ffffff; --accent-soft:#ececec;
  --radius:2px; --shadow:none;
}
@media (prefers-color-scheme:dark){:root,:root:not([data-theme="light"]){
  --bg:#f4f4f4; --surface:#f4f4f4; --surface-2:#ececec;
  --text:#111111; --text-2:#3a3a3a; --muted:#8a8a8a; --border:#dcdcdc;
  --accent:#111111; --accent-hover:#333333; --accent-ink:#ffffff; --accent-soft:#ececec;
}}
html{color-scheme:light}
body{font-weight:300}
h1,h2,h3{font-weight:400;letter-spacing:-.01em}
.nav{background:var(--bg);border-bottom:1px solid var(--border)}
.nav .brand{font-weight:300;letter-spacing:.28em;text-transform:lowercase;font-size:15px}
.nav a{font-size:13px;text-transform:uppercase;letter-spacing:.04em;font-weight:400}
.card{background:transparent;border:0;border-top:1px solid var(--text);border-radius:0;box-shadow:none;padding:26px 0}
.stats .card.stat{border-top:1px solid var(--border)}
.banner{background:transparent;border-top:1px solid var(--border)!important;padding:16px 0}
.btn{border-radius:0;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:400;box-shadow:none}
.btn-primary{background:var(--text);border-color:var(--text);color:#fff}
input,select,textarea{border-radius:0;background:transparent;box-shadow:none}
.stat-value{font-weight:300;font-size:30px}
.auth-card{border:0;border-top:1px solid var(--text)}
table.table th{font-weight:400;letter-spacing:.08em}
.bar span{background:var(--text)}
main p a,.banner a,.flash a{text-decoration:underline;text-underline-offset:3px}
.category-row .actions{flex-wrap:wrap;align-items:center}.keep{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--text-2);white-space:nowrap;margin:0}.keep input{width:auto;margin:0}

/* ---------- site header (same as landing, no border) ---------- */
.site-header{position:sticky;top:0;z-index:10;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;padding:26px clamp(16px,4vw,40px);background:linear-gradient(var(--bg) 70%,rgba(244,244,244,0));border:0}
.site-logo{display:flex;align-items:center;gap:14px;font-weight:300;letter-spacing:.28em;font-size:15px;text-transform:lowercase;color:var(--text);justify-self:start}
.site-logo:hover{text-decoration:none}
.site-logo svg{width:24px;height:24px;color:#111}
.site-nav{display:flex;gap:34px}
.site-nav a,.site-btn{font-size:13px;font-weight:400;letter-spacing:.04em;text-transform:uppercase;color:var(--text-2);text-decoration:none;padding:4px 0;transition:color .2s}
.site-nav a:hover,.site-nav a.active{color:var(--text);text-decoration:none}
.site-nav a.active{box-shadow:inset 0 -1.5px 0 var(--text)}
.site-actions{display:flex;align-items:center;gap:22px;justify-self:end}
.site-actions form{margin:0}
.site-user{font-size:13px;color:var(--muted);max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.site-btn{background:none;border:0;cursor:pointer;font-family:var(--font);color:var(--text)}
.site-btn:hover{text-decoration:none;color:var(--text-2)}
.site-btn-solid{background:#111;color:#fff;padding:10px 16px}
.site-btn-solid:hover{background:#333;color:#fff}
@media (max-width:760px){
  .site-header{grid-template-columns:1fr auto;row-gap:14px;padding:18px 16px}
  .site-nav{grid-column:1/-1;grid-row:2;gap:24px}
  .site-user{display:none}
}
.site-header-guest{grid-template-columns:1fr auto}
@media (max-width:760px){.site-header-guest{grid-template-columns:1fr auto;padding:18px 16px}.site-header-guest .site-actions{gap:16px}.site-btn-solid{padding:9px 12px}}
.site-logo img{width:34px;height:auto;display:block}
@media (max-width:1100px){.site-user{display:none}}
.auth-card{border:0!important;border-top:0!important}
.auth-card .auth-terms{margin:18px 0 20px;text-align:center}
.auth-links{margin-top:28px;display:flex;flex-direction:column;align-items:center;gap:12px;font-size:13px;color:var(--muted)}
.auth-links a{color:var(--text)}.auth-links a:hover{text-decoration:underline;text-underline-offset:3px}