/* ==========================================================================
   Guddu Order Manager — Design System
   Premium SaaS aesthetic (Stripe / Linear / Vercel inspired)
   Light + dark mode, mobile-first, touch-friendly.
   ========================================================================== */

:root {
  /* Brand */
  --brand-500: #6366f1;
  --brand-600: #4f46e5;
  --brand-700: #4338ca;
  --brand-soft: #eef2ff;

  /* Neutrals (light) */
  --bg: #f6f7fb;
  --surface: #ffffff;
  --surface-2: #fbfbfd;
  --border: #e6e8ef;
  --border-strong: #d3d7e0;
  --text: #0f1222;
  --text-2: #4b5063;
  --text-3: #868da3;

  --success: #16a34a;
  --success-soft: #eafaf0;
  --warning: #d97706;
  --danger: #dc2626;
  --danger-soft: #fdecec;

  /* Effects */
  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(16, 18, 34, .06), 0 1px 3px rgba(16, 18, 34, .04);
  --shadow-md: 0 4px 14px rgba(16, 18, 34, .08);
  --shadow-lg: 0 18px 50px rgba(16, 18, 34, .16);
  --ring: 0 0 0 3px rgba(99, 102, 241, .28);

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  --nav-w: 248px;
  --safe-b: env(safe-area-inset-bottom, 0px);
}

html[data-theme="dark"] {
  --bg: #0b0d16;
  --surface: #141726;
  --surface-2: #10131f;
  --border: #262a3d;
  --border-strong: #333852;
  --text: #eef0f7;
  --text-2: #b3b8ca;
  --text-3: #808699;
  --brand-soft: #1b1f36;
  --success-soft: #10231a;
  --danger-soft: #2a1518;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, .45);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, .6);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-size: 15px;
  line-height: 1.5;
  overscroll-behavior-y: none;
}
h1, h2, h3, h4 { margin: 0; font-weight: 650; letter-spacing: -0.01em; }
a { color: var(--brand-600); text-decoration: none; }
button { font-family: inherit; }
:focus-visible { outline: none; box-shadow: var(--ring); border-radius: 8px; }
[hidden] { display: none !important; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; padding: 0 18px; border-radius: var(--radius-sm);
  border: 1px solid transparent; background: var(--surface); color: var(--text);
  font-weight: 600; font-size: 14px; cursor: pointer; white-space: nowrap;
  transition: transform .06s ease, background .15s ease, border-color .15s ease, box-shadow .15s ease;
  user-select: none; -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: translateY(1px); }
.btn svg { width: 18px; height: 18px; }
.btn-primary { background: var(--brand-600); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--brand-700); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text-2); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }
.btn-outline { background: var(--surface); border-color: var(--border-strong); }
.btn-outline:hover { border-color: var(--brand-600); color: var(--brand-600); }
.btn-danger { background: var(--danger-soft); color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-sm { height: 36px; padding: 0 12px; font-size: 13px; border-radius: 9px; }
.btn-icon { width: 40px; height: 40px; padding: 0; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn-wa { background: #25d366; color: #05391c; }
.btn-tg { background: #229ed9; color: #fff; }
.btn-mail { background: var(--surface); border-color: var(--border-strong); }

/* ---------- Inputs ---------- */
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 12.5px; font-weight: 600; color: var(--text-2); }
.input, .textarea, select.input {
  width: 100%; height: 44px; padding: 0 12px; font-size: 15px;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  transition: border-color .15s ease, box-shadow .15s ease;
  appearance: none;
}
.textarea { height: auto; min-height: 76px; padding: 10px 12px; resize: vertical; line-height: 1.5; }
.input:focus, .textarea:focus, select.input:focus { border-color: var(--brand-600); box-shadow: var(--ring); }
.input::placeholder, .textarea::placeholder { color: var(--text-3); }
.input-error { border-color: var(--danger) !important; }
.err-msg { color: var(--danger); font-size: 12px; min-height: 14px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 560px) { .grid-2 { grid-template-columns: 1fr; } }

/* ---------- Cards ---------- */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow-sm);
}
.card-pad { padding: 18px; }
.section-title { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-3); font-weight: 700; }

/* ---------- App shell ---------- */
#app { min-height: 100%; }
.shell { display: grid; grid-template-columns: var(--nav-w) 1fr; min-height: 100vh; }

.sidebar {
  position: sticky; top: 0; height: 100vh; background: var(--surface);
  border-right: 1px solid var(--border); display: flex; flex-direction: column; padding: 16px 12px;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 8px 8px 16px; }
.brand-logo { width: 38px; height: 38px; border-radius: 11px; box-shadow: var(--shadow-sm); }
.brand-name { font-weight: 750; font-size: 15px; letter-spacing: -.02em; }
.brand-sub { font-size: 11px; color: var(--text-3); }

.nav { display: flex; flex-direction: column; gap: 3px; margin-top: 6px; }
.nav a {
  display: flex; align-items: center; gap: 11px; height: 42px; padding: 0 12px;
  border-radius: 10px; color: var(--text-2); font-weight: 600; font-size: 14px;
}
.nav a svg { width: 19px; height: 19px; opacity: .85; }
.nav a:hover { background: var(--surface-2); color: var(--text); }
.nav a.active { background: var(--brand-soft); color: var(--brand-600); }
.nav a.active svg { opacity: 1; }
.sidebar-foot { margin-top: auto; display: flex; flex-direction: column; gap: 8px; padding: 8px; }
.user-chip { display: flex; align-items: center; gap: 10px; padding: 8px; border-radius: 10px; background: var(--surface-2); }
.avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--brand-600); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 13px; }

.main { min-width: 0; display: flex; flex-direction: column; }
.topbar {
  position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 12px;
  padding: 14px 22px; background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--border);
}
.topbar h1 { font-size: 19px; }
.topbar .spacer { flex: 1; }
.content { padding: 22px; max-width: 1080px; width: 100%; margin: 0 auto; }

/* mobile bottom nav */
.mobile-nav { display: none; }
.hamburger { display: none; }

@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .content { padding: 16px 14px calc(88px + var(--safe-b)); }
  .topbar { padding: 12px 16px; }
  .mobile-nav {
    display: grid; grid-template-columns: repeat(4, 1fr);
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 40;
    background: color-mix(in srgb, var(--surface) 92%, transparent);
    backdrop-filter: blur(12px) saturate(1.4);
    border-top: 1px solid var(--border);
    padding: 6px 6px calc(6px + var(--safe-b));
  }
  .mobile-nav a {
    display: flex; flex-direction: column; align-items: center; gap: 3px;
    padding: 6px 0; border-radius: 10px; color: var(--text-3); font-size: 10.5px; font-weight: 600;
  }
  .mobile-nav a svg { width: 22px; height: 22px; }
  .mobile-nav a.active { color: var(--brand-600); }
}

/* ---------- Dashboard stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
@media (max-width: 860px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.stat { padding: 16px; }
.stat .label { font-size: 12.5px; color: var(--text-3); font-weight: 600; }
.stat .value { font-size: 28px; font-weight: 750; letter-spacing: -.02em; margin-top: 6px; }
.stat .ico { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: var(--brand-soft); color: var(--brand-600); }
.stat-head { display: flex; align-items: center; justify-content: space-between; }

/* ---------- Tables ---------- */
.tbl-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
table.tbl th { text-align: left; font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em; color: var(--text-3); font-weight: 700; padding: 10px 12px; border-bottom: 1px solid var(--border); white-space: nowrap; }
table.tbl td { padding: 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
table.tbl tr:last-child td { border-bottom: none; }
table.tbl tbody tr:hover { background: var(--surface-2); }
.mono { font-family: var(--mono); font-size: 13px; }
.badge { display: inline-flex; align-items: center; padding: 3px 9px; border-radius: 999px; font-size: 12px; font-weight: 650; background: var(--brand-soft); color: var(--brand-600); }
.pill-num { font-weight: 700; }

/* ---------- Order entry product rows ---------- */
.rows { display: flex; flex-direction: column; gap: 0; }
.rows-head, .prod-row {
  display: grid; grid-template-columns: 34px 1.4fr .7fr .8fr 1.3fr 40px; gap: 8px; align-items: center;
}
.rows-head { padding: 0 4px 8px; font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--text-3); font-weight: 700; }
.prod-row { padding: 6px 0; }
.prod-row .sr { text-align: center; color: var(--text-3); font-weight: 700; font-size: 13px; }
.prod-row .del { border: none; background: transparent; color: var(--text-3); cursor: pointer; width: 40px; height: 40px; border-radius: 8px; }
.prod-row .del:hover { background: var(--danger-soft); color: var(--danger); }
@media (max-width: 720px) {
  .rows-head { display: none; }
  .prod-row {
    grid-template-columns: 1fr 1fr; gap: 8px; padding: 12px;
    border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 10px; position: relative;
  }
  .prod-row .sr { position: absolute; top: -9px; left: 10px; background: var(--brand-600); color: #fff; width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; font-size: 11px; }
  .prod-row .c-design { grid-column: 1 / -1; }
  .prod-row .c-remarks { grid-column: 1 / -1; }
  .prod-row .del { position: absolute; top: 4px; right: 4px; }
}

/* summary card */
.summary { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.summary .box { padding: 14px 16px; border-radius: var(--radius-sm); background: var(--surface-2); border: 1px solid var(--border); }
.summary .box .k { font-size: 12px; color: var(--text-3); font-weight: 600; }
.summary .box .v { font-size: 24px; font-weight: 750; margin-top: 2px; }

/* ---------- Auth ---------- */
.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 20px; background:
  radial-gradient(1200px 500px at 80% -10%, rgba(99,102,241,.18), transparent),
  radial-gradient(900px 500px at -10% 110%, rgba(99,102,241,.12), transparent), var(--bg); }
.auth-card { width: 100%; max-width: 400px; }
.auth-logo { width: 56px; height: 56px; border-radius: 16px; box-shadow: var(--shadow-md); }

/* ---------- Utility ---------- */
.stack { display: flex; flex-direction: column; }
.gap-8 { gap: 8px; } .gap-12 { gap: 12px; } .gap-16 { gap: 16px; } .gap-20 { gap: 20px; } .gap-24 { gap: 24px; }
.row { display: flex; align-items: center; }
.wrap { flex-wrap: wrap; }
.between { justify-content: space-between; }
.mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; }
.muted { color: var(--text-3); }
.small { font-size: 13px; }
.center { text-align: center; }
.hide-mobile { }
@media (max-width: 640px) { .hide-mobile { display: none !important; } }
.grow { flex: 1; }
.divider { height: 1px; background: var(--border); margin: 16px 0; }

/* empty state */
.empty { text-align: center; padding: 48px 20px; color: var(--text-3); }
.empty svg { width: 46px; height: 46px; opacity: .5; margin-bottom: 10px; }

/* toast */
.toast-wrap { position: fixed; z-index: 200; left: 50%; bottom: calc(90px + var(--safe-b)); transform: translateX(-50%); display: flex; flex-direction: column; gap: 8px; align-items: center; pointer-events: none; }
@media (min-width: 901px) { .toast-wrap { bottom: 24px; } }
.toast {
  background: #0f1222; color: #fff; padding: 11px 16px; border-radius: 12px; font-size: 13.5px; font-weight: 600;
  box-shadow: var(--shadow-lg); display: flex; align-items: center; gap: 9px; max-width: 90vw;
  animation: toast-in .25s ease;
}
html[data-theme="dark"] .toast { background: #262a3d; }
.toast.ok { border-left: 3px solid var(--success); }
.toast.err { border-left: 3px solid var(--danger); }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }

/* modal */
.modal-back { position: fixed; inset: 0; background: rgba(6,8,18,.5); z-index: 150; display: grid; place-items: center; padding: 18px; animation: fade .15s ease; }
@keyframes fade { from { opacity: 0; } }
.modal { width: 100%; max-width: 440px; }
.modal h3 { font-size: 17px; }

/* view-order sheet */
.kv { display: grid; grid-template-columns: 130px 1fr; gap: 8px 14px; font-size: 14px; }
.kv dt { color: var(--text-3); font-weight: 600; }
.kv dd { margin: 0; }
@media (max-width: 560px) { .kv { grid-template-columns: 1fr; gap: 2px 0; } .kv dd { margin-bottom: 8px; } }

.app-foot { text-align: center; color: var(--text-3); font-size: 12px; padding: 18px 0 4px; }
.app-foot b { color: var(--text-2); font-weight: 700; }

.spinner { width: 18px; height: 18px; border: 2.5px solid rgba(255,255,255,.4); border-top-color: #fff; border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.toggle { position: relative; width: 44px; height: 26px; border-radius: 999px; background: var(--border-strong); cursor: pointer; transition: background .2s; flex: none; }
.toggle::after { content: ""; position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; border-radius: 50%; background: #fff; transition: transform .2s; box-shadow: var(--shadow-sm); }
.toggle.on { background: var(--brand-600); }
.toggle.on::after { transform: translateX(18px); }