/* Munshy design system
   Visual genre: confident, modern small-business fintech. White canvas, a
   single trusted blue, a deep ink navy, calm neutral greys, layered soft
   shadows instead of hard lines, and a type scale that flexes with the
   viewport so the same rules that look right on a 27" monitor still look
   right on a phone in a truck. */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  /* ---- Brand ---- */
  --blue:        #1560E6;   /* matches the logo mark — do not shift */
  --blue-dark:   #0E3FA8;
  --blue-mid:    #3B7CF0;
  --blue-soft:   #EDF3FE;
  --blue-soft-2: #E1EBFC;
  --navy:        #0B1C33;   /* deeper ink than pure text, used for headings */
  --navy-2:      #142B47;

  --green:       #0E9F6E;
  --green-dark:  #0B7A55;
  --green-soft:  #E7F7F0;
  --amber:       #B45309;
  --amber-soft:  #FEF6E7;
  --red:         #C0392B;
  --red-soft:    #FDECEA;

  /* ---- Neutrals ---- */
  --text:        #1B2431;
  --muted:       #5B6B84;
  --faint:       #8B96A8;
  --border:      #E4E9F1;
  --border-dark: #CDD6E3;
  --bg:          #FFFFFF;
  --bg-soft:     #F6F8FC;
  --bg-soft-2:   #EEF2F8;

  /* ---- Shape & elevation ---- */
  --radius-sm:   8px;
  --radius:      10px;
  --radius-lg:   16px;
  --radius-xl:   22px;
  --shadow-xs:   0 1px 2px rgba(15, 27, 51, .05);
  --shadow-sm:   0 2px 6px rgba(15, 27, 51, .06), 0 1px 2px rgba(15, 27, 51, .05);
  --shadow-md:   0 8px 20px rgba(15, 27, 51, .08), 0 2px 6px rgba(15, 27, 51, .05);
  --shadow-lg:   0 16px 40px rgba(15, 27, 51, .14), 0 4px 12px rgba(15, 27, 51, .06);
  --shadow-glow: 0 0 0 1px rgba(21, 96, 230, .08), 0 12px 32px rgba(21, 96, 230, .16);

  --max:         1180px;
  --ease:        cubic-bezier(.2, .7, .3, 1);
}

/* ---------- Reset & base ---------- */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font: 400 16px/1.6 Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4 { color: var(--navy); margin: 0 0 .5em; line-height: 1.15; font-weight: 800; }
h1 { font-size: clamp(30px, 4.6vw, 50px); letter-spacing: -.025em; }
h2 { font-size: clamp(24px, 3.2vw, 33px); letter-spacing: -.02em; }
h3 { font-size: 18.5px; font-weight: 700; }
p  { margin: 0 0 1em; }
a  { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; border-radius: 4px; }
img, svg { max-width: 100%; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 clamp(18px, 4vw, 32px); }
.narrow { max-width: 720px; }
.muted { color: var(--muted); }
.tnum { font-variant-numeric: tabular-nums; }
.center { text-align: center; }
.right { text-align: right; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid transparent; border-radius: var(--radius);
  padding: 11px 20px; font: 600 15px/1 Inter, sans-serif;
  cursor: pointer; transition: background .15s var(--ease), border-color .15s var(--ease),
    box-shadow .15s var(--ease), transform .1s var(--ease), color .15s var(--ease);
  text-decoration: none; white-space: nowrap; user-select: none;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 1px 2px rgba(14, 63, 168, .25), inset 0 1px 0 rgba(255,255,255,.14); }
.btn-primary:hover { background: var(--blue-dark); box-shadow: 0 4px 14px rgba(21, 96, 230, .28), inset 0 1px 0 rgba(255,255,255,.14); }
.btn-secondary { background: #fff; color: var(--navy); border-color: var(--border-dark); }
.btn-secondary:hover { background: var(--bg-soft); border-color: var(--faint); }
.btn-ghost { background: transparent; color: var(--blue); padding: 8px 12px; }
.btn-ghost:hover { background: var(--blue-soft); }
.btn-danger { background: #fff; color: var(--red); border-color: var(--border-dark); }
.btn-danger:hover { background: var(--red-soft); border-color: var(--red); }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-sm { padding: 7px 13px; font-size: 13.5px; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

/* ---------- Marketing nav ---------- */
.nav {
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, .86);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  position: sticky; top: 0; z-index: 60;
}
.nav-inner { display: flex; align-items: center; gap: 32px; height: 68px; position: relative; }
.logo { display: flex; align-items: center; gap: 9px; font: 800 21px/1 Inter, sans-serif;
  color: var(--navy); letter-spacing: -.02em; }
.logo:hover { text-decoration: none; }
.logo-mark { width: 30px; height: 30px; display: block; flex-shrink: 0; }
.nav-links { display: flex; gap: 26px; margin-left: 12px; }
.nav-links a { color: var(--text); font-weight: 500; font-size: 15px; }
.nav-links a:hover { color: var(--blue); text-decoration: none; }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.nav-collapse { display: contents; }

.nav-toggle {
  display: none; align-items: center; justify-content: center;
  width: 40px; height: 40px; margin-left: auto; flex-shrink: 0;
  background: none; border: 1px solid var(--border-dark); border-radius: var(--radius-sm);
  cursor: pointer; padding: 0;
}
.nav-toggle-bars { position: relative; width: 18px; height: 13px; display: block; }
.nav-toggle-bars span {
  position: absolute; left: 0; width: 100%; height: 2px; border-radius: 2px;
  background: var(--navy); transition: transform .2s var(--ease), opacity .2s var(--ease), top .2s var(--ease);
}
.nav-toggle-bars span:nth-child(1) { top: 0; }
.nav-toggle-bars span:nth-child(2) { top: 5.5px; }
.nav-toggle-bars span:nth-child(3) { top: 11px; }
.nav-toggle.is-open .nav-toggle-bars span:nth-child(1) { top: 5.5px; transform: rotate(45deg); }
.nav-toggle.is-open .nav-toggle-bars span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open .nav-toggle-bars span:nth-child(3) { top: 5.5px; transform: rotate(-45deg); }

/* ---------- Marketing sections ---------- */
.hero {
  padding: 84px 0 68px;
  position: relative; overflow: clip;
  background:
    radial-gradient(680px 420px at 88% -8%, rgba(21, 96, 230, .14), transparent 62%),
    radial-gradient(520px 360px at 8% 0%, rgba(14, 159, 110, .09), transparent 60%),
    linear-gradient(180deg, var(--blue-soft) 0%, #fff 78%);
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero p.lede { font-size: 19px; color: var(--muted); max-width: 30em; }
.eyebrow { display: inline-flex; align-items: center; gap: 7px; background: #fff;
  border: 1px solid var(--border-dark); box-shadow: var(--shadow-xs);
  color: var(--blue-dark); font-size: 13.5px; font-weight: 700; padding: 6px 14px 6px 10px;
  border-radius: 999px; margin-bottom: 22px; }
.eyebrow::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--green);
  box-shadow: 0 0 0 3px var(--green-soft); flex-shrink: 0; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 30px; }
.hero-note { margin-top: 18px; font-size: 14px; color: var(--faint); }

.section { padding: 84px 0; }
.section-soft { background: var(--bg-soft); }
.section-head { max-width: 620px; margin-bottom: 46px; }
.section-head.center { margin-left: auto; margin-right: auto; }
.section-head p { font-size: 17.5px; color: var(--muted); margin: 0; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }

.feature {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 28px 24px; transition: box-shadow .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}
.feature:hover { box-shadow: var(--shadow-md); border-color: var(--border-dark); transform: translateY(-2px); }
.feature h3 { font-size: 17.5px; margin-bottom: 8px; }
.feature p { margin: 0; font-size: 15px; color: var(--muted); }
.feature-icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: linear-gradient(155deg, var(--blue-soft-2), var(--blue-soft));
  border: 1px solid rgba(21, 96, 230, .12);
  color: var(--blue); display: grid; place-items: center;
  margin-bottom: 18px;
}
.feature-icon svg { width: 22px; height: 22px; display: block; }

/* ---------- Pricing ---------- */
.plans { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px;
  max-width: 820px; margin: 0 auto; align-items: start; }
.plan { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 34px 30px; position: relative; transition: box-shadow .2s var(--ease), transform .2s var(--ease); }
.plan.featured { border: 2px solid var(--blue); box-shadow: var(--shadow-glow); }
.plan.featured:hover { transform: translateY(-2px); }
.plan-badge { position: absolute; top: -13px; left: 28px; background: var(--blue);
  color: #fff; font-size: 12.5px; font-weight: 700; padding: 5px 13px; border-radius: 999px;
  box-shadow: 0 3px 10px rgba(21, 96, 230, .35); }
.plan h3 { font-size: 19px; margin-bottom: 4px; }
.plan .price { font-size: 44px; font-weight: 800; color: var(--navy); letter-spacing: -.02em; margin-top: 14px; }
.plan .price span { font-size: 16px; font-weight: 500; color: var(--muted); }
.plan ul { list-style: none; padding: 0; margin: 24px 0; }
.plan li { position: relative; padding: 7px 0 7px 30px; font-size: 15px; }
.plan li::before {
  content: ''; position: absolute; left: 0; top: 9px; width: 18px; height: 18px;
  border-radius: 50%; background: var(--green)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3.5 8.3l2.8 2.8 6-6.4' fill='none' stroke='white' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")
    no-repeat center / 10px 10px;
}

.rate-table { width: 100%; border-collapse: collapse; background: #fff;
  border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.rate-table th, .rate-table td { padding: 15px 20px; text-align: left;
  border-bottom: 1px solid var(--border); font-size: 15px; }
.rate-table th { background: var(--bg-soft); font-weight: 700; color: var(--navy); font-size: 13.5px;
  text-transform: uppercase; letter-spacing: .03em; }
.rate-table tr:last-child td { border-bottom: 0; }
.rate-table td:last-child { text-align: right; font-weight: 600; font-variant-numeric: tabular-nums; }

/* ---------- Auth pages ---------- */
.auth-wrap {
  min-height: 100vh; display: grid; place-items: center;
  padding: 40px 20px;
  background:
    radial-gradient(560px 380px at 15% 0%, rgba(21, 96, 230, .10), transparent 60%),
    radial-gradient(520px 360px at 100% 100%, rgba(14, 159, 110, .08), transparent 60%),
    var(--bg-soft);
}
.auth-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 38px; width: 100%; max-width: 420px; box-shadow: var(--shadow-lg);
  position: relative; overflow: clip;
}
.auth-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--blue), var(--green));
}
.auth-card h1 { font-size: 25px; margin-bottom: 6px; }
.auth-card .sub { color: var(--muted); font-size: 15px; margin-bottom: 26px; }

/* ---------- Forms ---------- */
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13.5px; font-weight: 600; color: var(--navy);
  margin-bottom: 6px; }
.input, select.input, textarea.input {
  width: 100%; border: 1px solid var(--border-dark); border-radius: var(--radius);
  padding: 11px 13px; font: 400 15px Inter, sans-serif; color: var(--text);
  background: #fff; transition: border-color .15s var(--ease), box-shadow .15s var(--ease);
}
.input:focus { border-color: var(--blue); outline: none; box-shadow: 0 0 0 3px var(--blue-soft); }
.input.error { border-color: var(--red); }
.input.error:focus { box-shadow: 0 0 0 3px var(--red-soft); }
textarea.input { min-height: 84px; resize: vertical; }
.hint { font-size: 13px; color: var(--faint); margin-top: 5px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.alert { padding: 12px 14px; border-radius: var(--radius); font-size: 14.5px; margin-bottom: 18px; }
.alert-error { background: var(--red-soft); color: var(--red); }
.alert-ok { background: var(--green-soft); color: var(--green-dark); }
.alert-info { background: var(--blue-soft); color: var(--blue-dark); }
.alert-warn { background: var(--amber-soft); color: var(--amber); }

/* ---------- App shell ---------- */
.app { display: grid; grid-template-columns: 236px 1fr; min-height: 100vh; }
.sidebar {
  background: linear-gradient(185deg, var(--navy) 0%, var(--navy-2) 100%);
  padding: 20px 0; position: sticky; top: 0; height: 100vh;
  overflow-y: auto; z-index: 80;
  transition: transform .25s var(--ease);
}
.sidebar-head { display: flex; align-items: center; padding: 0 20px 22px; }
.sidebar .logo { color: #fff; padding: 0; }
.sidebar-close { display: none; }
.sidebar-overlay { display: none; }
.side-group { padding: 14px 0 4px; }
.side-group-label { padding: 0 20px 6px; font-size: 11px; font-weight: 700;
  color: rgba(255,255,255,.4); letter-spacing: .07em; text-transform: uppercase; }
.side-link { display: flex; align-items: center; gap: 11px; padding: 9px 20px;
  color: rgba(255,255,255,.78); font-size: 14.5px; font-weight: 500;
  position: relative; transition: background .12s, color .12s; }
.side-link .side-icon { width: 17px; height: 17px; flex-shrink: 0; opacity: .85; }
.side-link:hover { background: rgba(255,255,255,.07); color: #fff; text-decoration: none; }
.side-link.active { background: rgba(255,255,255,.1); color: #fff; }
.side-link.active::before {
  content: ''; position: absolute; left: 0; top: 8px; bottom: 8px; width: 3px;
  border-radius: 0 3px 3px 0; background: var(--blue-mid);
  box-shadow: 0 0 10px rgba(59, 124, 240, .7);
}
.side-link.active .side-icon { opacity: 1; }
.side-foot { padding: 18px 20px; margin-top: 12px; border-top: 1px solid rgba(255,255,255,.12);
  font-size: 13px; color: rgba(255,255,255,.6); }

.main { background: var(--bg-soft); min-width: 0; }
.topbar { background: rgba(255,255,255,.92); backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border); padding: 0 28px;
  height: 64px; display: flex; align-items: center; gap: 14px; position: sticky; top: 0; z-index: 40; }
.topbar h1 { font-size: 19px; margin: 0; }
.topbar .spacer { margin-left: auto; }
.menu-toggle {
  display: none; align-items: center; justify-content: center;
  width: 38px; height: 38px; flex-shrink: 0; margin-left: -6px;
  background: none; border: 1px solid var(--border-dark); border-radius: var(--radius-sm);
  cursor: pointer; padding: 0;
}
.page { padding: 28px; max-width: 1320px; }

.card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  margin-bottom: 22px; box-shadow: var(--shadow-xs); }
.card-head { padding: 18px 22px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.card-head h2 { font-size: 16.5px; margin: 0; }
.card-head .spacer { margin-left: auto; }
.card-body { padding: 22px; }
.card-body.tight { padding: 0; overflow-x: auto; -webkit-overflow-scrolling: touch; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 22px; }
.stat { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 20px; box-shadow: var(--shadow-xs); }
.stat-top { display: flex; align-items: center; gap: 9px; margin-bottom: 4px; }
.stat-icon { width: 26px; height: 26px; border-radius: 7px; flex-shrink: 0;
  display: grid; place-items: center; background: var(--blue-soft); color: var(--blue); }
.stat-icon svg { width: 15px; height: 15px; }
.stat-icon--amber { background: var(--amber-soft); color: var(--amber); }
.stat-icon--green { background: var(--green-soft); color: var(--green); }
.stat-icon--navy { background: var(--bg-soft-2); color: var(--navy); }
.stat .label { font-size: 13px; color: var(--muted); font-weight: 500; }
.stat .value { font-size: 27px; font-weight: 800; color: var(--navy); margin-top: 4px;
  font-variant-numeric: tabular-nums; letter-spacing: -.01em; }
.stat .sub { font-size: 13px; color: var(--faint); margin-top: 3px; }
.stat.alert-tone .value { color: var(--amber); }

table.data { width: 100%; border-collapse: collapse; }
.card-body.tight table.data { min-width: 640px; }
table.data th { text-align: left; font-size: 12px; font-weight: 700; color: var(--muted);
  padding: 12px 22px; border-bottom: 1px solid var(--border); background: var(--bg-soft);
  text-transform: uppercase; letter-spacing: .03em; white-space: nowrap; }
table.data td { padding: 14px 22px; border-bottom: 1px solid var(--border); font-size: 14.5px; }
table.data tr:last-child td { border-bottom: 0; }
table.data tbody tr:hover { background: #FAFCFE; }
table.data td.num, table.data th.num { text-align: right; font-variant-numeric: tabular-nums; }
table.data a { font-weight: 500; }

.pill { display: inline-flex; align-items: center; padding: 3px 11px; border-radius: 999px;
  font-size: 12.5px; font-weight: 700; letter-spacing: .01em; }
.pill-draft   { background: #EEF1F5; color: #5B6577; }
.pill-sent,
.pill-viewed  { background: var(--blue-soft); color: var(--blue-dark); }
.pill-partial { background: var(--amber-soft); color: var(--amber); }
.pill-paid    { background: var(--green-soft); color: var(--green-dark); }
.pill-overdue { background: var(--red-soft); color: var(--red); }
.pill-void    { background: #EEF1F5; color: var(--faint); }

.empty { padding: 60px 22px; text-align: center; color: var(--muted); }
.empty h3 { color: var(--navy); font-size: 17px; }
.empty p { font-size: 15px; max-width: 34em; margin: 0 auto 18px; }

.split-row { display: grid; grid-template-columns: 1fr 130px 150px 40px; gap: 12px;
  align-items: end; margin-bottom: 12px; }
.line-row { display: grid; grid-template-columns: 1fr 90px 130px 120px 40px; gap: 12px;
  align-items: end; margin-bottom: 12px; }
.icon-btn { background: none; border: 0; color: var(--faint); cursor: pointer;
  font-size: 19px; line-height: 1; padding: 9px; border-radius: 6px; transition: background .12s, color .12s; }
.icon-btn:hover { background: var(--red-soft); color: var(--red); }

.totals-box { margin-left: auto; width: 300px; max-width: 100%; }
.totals-box div { display: flex; justify-content: space-between; padding: 7px 0; font-size: 15px; }
.totals-box .grand { border-top: 2px solid var(--navy); margin-top: 8px; padding-top: 12px;
  font-size: 19px; font-weight: 700; color: var(--navy); }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 22px;
  overflow-x: auto; -webkit-overflow-scrolling: touch; }
.tab { padding: 11px 16px; font-size: 14.5px; font-weight: 500; color: var(--muted);
  border-bottom: 2px solid transparent; cursor: pointer; background: none; border-top: 0;
  border-left: 0; border-right: 0; white-space: nowrap; }
.tab.active { color: var(--blue); border-bottom-color: var(--blue); font-weight: 600; }

.modal-bg { position: fixed; inset: 0; background: rgba(11,28,51,.5); z-index: 100;
  display: grid; place-items: center; padding: 24px; }
.modal { background: #fff; border-radius: var(--radius-lg); width: 100%; max-width: 520px;
  max-height: 88vh; overflow-y: auto; box-shadow: var(--shadow-lg); }

.toast { position: fixed; bottom: calc(24px + env(safe-area-inset-bottom, 0px)); left: 50%;
  transform: translateX(-50%); max-width: calc(100vw - 32px);
  background: var(--navy); color: #fff; padding: 12px 20px; border-radius: var(--radius);
  font-size: 14.5px; z-index: 200; box-shadow: var(--shadow-lg); text-align: center; }

/* ---------- Import drop zone ---------- */
.drop { border: 2px dashed var(--border-dark); border-radius: var(--radius-lg);
  padding: 38px 24px; text-align: center; background: var(--bg-soft);
  transition: border-color .15s, background .15s; }
.drop--over { border-color: var(--blue); background: var(--blue-soft); }
.link-inline { background: none; border: 0; padding: 0; color: var(--blue);
  font: inherit; cursor: pointer; text-decoration: underline; }

/* ---------- AI draft box ---------- */
.draft-card { border-color: var(--blue); background:
  linear-gradient(180deg, var(--blue-soft) 0%, #fff 62%); }
.draft-badge { display: inline-block; background: var(--blue); color: #fff;
  font-size: 12px; font-weight: 600; padding: 4px 11px; border-radius: 999px; }

/* ---------- Reminder cadence ---------- */
.rem-row { display: flex; align-items: center; gap: 12px; padding: 11px 14px;
  border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 8px;
  background: #fff; }
.rem-when { flex: 1; font-size: 14.5px; font-weight: 500; }
.rem-row .icon-btn { padding: 4px 8px; font-size: 17px; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border); padding: 52px 0 36px; background: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 32px; }
.footer h4 { font-size: 13px; color: var(--navy); margin-bottom: 12px; text-transform: uppercase; letter-spacing: .03em; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 9px; }
.footer a { color: var(--muted); font-size: 14.5px; }
.footer a:hover { color: var(--blue); }
.footer-bottom { border-top: 1px solid var(--border); margin-top: 36px; padding-top: 22px;
  font-size: 13.5px; color: var(--faint); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* =====================================================================
   Responsive
   Two structural breakpoints: 980px (tablet — tighten grids, collapse the
   hero) and 640px (phone — single column everywhere, full-width actions,
   bottom-sheet modals). Type sizes flex on their own via clamp() above.
   ===================================================================== */

@media (max-width: 980px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; row-gap: 30px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-grid > div:first-child { max-width: 640px; }

  .nav-toggle { display: inline-flex; }
  .nav-collapse {
    display: flex; flex-direction: column; gap: 2px;
    position: absolute; top: 100%; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    padding: 6px clamp(18px, 4vw, 32px) 20px;
    max-height: calc(100vh - 68px); overflow-y: auto;
    opacity: 0; visibility: hidden; transform: translateY(-8px);
    transition: opacity .18s var(--ease), transform .18s var(--ease), visibility .18s;
  }
  .nav-collapse.open { opacity: 1; visibility: visible; transform: translateY(0); }
  .nav-links { display: flex; flex-direction: column; gap: 0; margin: 0; }
  .nav-links a { padding: 13px 2px; border-bottom: 1px solid var(--border); font-size: 15.5px; }
  .nav-right {
    display: flex !important; flex-direction: column; align-items: stretch; gap: 10px;
    margin: 14px 0 0;
  }
  .nav-right .btn { width: 100%; }

  .app { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed; top: 0; left: 0; bottom: 0; width: 272px; height: 100dvh;
    transform: translateX(-100%); box-shadow: var(--shadow-lg);
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-close {
    display: inline-flex; align-items: center; justify-content: center;
    width: 30px; height: 30px; margin-left: auto; flex-shrink: 0;
    background: rgba(255,255,255,.08); border: 0; border-radius: 7px;
    color: #fff; cursor: pointer; font-size: 18px;
  }
  .sidebar-overlay {
    display: none; position: fixed; inset: 0; background: rgba(11,28,51,.45);
    z-index: 79; backdrop-filter: blur(1px);
  }
  .sidebar-overlay.open { display: block; }
  .menu-toggle { display: inline-flex; }
  .page { padding: 20px; }
}

@media (max-width: 640px) {
  .grid-3, .grid-2, .plans, .footer-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat { padding: 16px; }
  .stat .value { font-size: 22px; }
  .section { padding: 56px 0; }
  .hero { padding: 52px 0 44px; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { width: 100%; }
  .plan { padding: 26px 22px; }
  .line-row, .split-row { grid-template-columns: 1fr; gap: 8px; margin-bottom: 18px;
    padding-bottom: 14px; border-bottom: 1px dashed var(--border); }
  .form-row { grid-template-columns: 1fr; }
  .page { padding: 16px; }
  .card-body { padding: 18px; }
  .card-head { padding: 16px 18px; }
  .totals-box { width: 100%; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .auth-card { padding: 28px 22px; }

  .modal-bg { padding: 0; align-items: flex-end; }
  .modal { max-width: 100%; max-height: 92dvh; border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    animation: sheet-up .22s var(--ease); }
  .toast { bottom: calc(16px + env(safe-area-inset-bottom, 0px)); width: calc(100% - 32px); }
}

@keyframes sheet-up { from { transform: translateY(24px); opacity: .6; } to { transform: translateY(0); opacity: 1; } }

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