:root {
  --petrol-950: var(--app-brand-deep);
  --petrol-900: var(--app-brand-dark);
  --petrol-800: var(--app-brand);
  --mint: var(--app-mint);
  --mint-soft: var(--app-brand-soft);
  --amber: var(--app-amber);
  --amber-soft: var(--app-amber-soft);
  --ivory: var(--app-canvas);
  --ink: var(--app-text);
  --muted: var(--app-text-soft);
  --line: var(--app-line);
  --danger: var(--app-danger);
  --danger-soft: var(--app-danger-soft);
  --shadow: 0 24px 60px rgba(18, 59, 69, .13);
}

* { box-sizing: border-box; }

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--ivory);
  font-family: var(--app-font-ui);
  -webkit-font-smoothing: antialiased;
}

button,
input { font: inherit; }

button { cursor: pointer; }

.login-page {
  height: 100vh;
  height: 100dvh;
  display: grid;
  grid-template-columns: minmax(500px, 1.04fr) minmax(520px, .96fr);
  overflow: hidden;
}

.brand-panel {
  position: relative;
  height: 100%;
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding: 38px clamp(40px, 5vw, 82px) 34px;
  overflow: hidden;
  isolation: isolate;
  color: var(--app-surface);
  background:
    radial-gradient(circle at 87% 15%, rgba(184, 242, 230, .18), transparent 25%),
    radial-gradient(circle at 11% 84%, rgba(216, 155, 43, .16), transparent 24%),
    linear-gradient(145deg, var(--petrol-950), var(--petrol-900) 58%, #0d4552);
}

.brand-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  opacity: .10;
  background-image:
    linear-gradient(rgba(255,255,255,.24) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.24) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(to bottom, transparent, #000 18%, #000 80%, transparent);
}

.brand-panel::after {
  content: "";
  position: absolute;
  right: -185px;
  bottom: -175px;
  z-index: -1;
  width: 400px;
  height: 400px;
  border: 1px solid rgba(184, 242, 230, .28);
  border-radius: 50%;
  box-shadow: 0 0 0 58px rgba(184, 242, 230, .035), 0 0 0 116px rgba(184, 242, 230, .025);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  width: fit-content;
}

.brand-mark {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: var(--app-radius-raised);
  color: var(--petrol-900);
  background: var(--mint);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.35);
}

.brand-mark i { width: 27px; height: 27px; stroke-width: 1.8; }

.brand-copy strong {
  display: block;
  font: 700 var(--app-type-21)/1.1 var(--app-font-heading);
  letter-spacing: -.03em;
}

.brand-copy span {
  display: block;
  margin-top: 5px;
  color: rgba(184, 242, 230, .76);
  font-size: var(--app-type-12);
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.brand-content {
  width: min(100%, 620px);
  margin: auto 0;
  padding: 46px 0 32px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--mint);
  font-size: var(--app-type-13);
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  border-radius: var(--app-radius-pill);
  background: var(--amber);
}

.brand-content h1 {
  max-width: 590px;
  margin: 0;
  font: 700 calc(clamp(39px, 4.2vw, 61px) + var(--app-type-shift))/1.06 var(--app-font-heading);
  letter-spacing: -.055em;
}

.brand-content > p {
  max-width: 530px;
  margin: 22px 0 0;
  color: rgba(255,255,255,.72);
  font-size: var(--app-type-19);
  line-height: 1.65;
}

.workspace-visual {
  position: relative;
  width: min(100%, 555px);
  height: 218px;
  margin-top: 38px;
  border: 1px solid rgba(184, 242, 230, .15);
  border-radius: var(--app-radius-xl);
  overflow: hidden;
  background:
    radial-gradient(circle at center, rgba(184, 242, 230, .09), transparent 42%),
    rgba(5, 32, 38, .42);
  box-shadow: 0 20px 50px rgba(3, 24, 28, .25);
  backdrop-filter: blur(13px);
}

.workspace-visual::before,
.workspace-visual::after {
  content: "";
  position: absolute;
  z-index: 0;
  opacity: .22;
  background: repeating-linear-gradient(90deg, rgba(184,242,230,.65) 0 3px, transparent 3px 8px);
}

.workspace-visual::before {
  top: 50%;
  right: 17%;
  left: 17%;
  height: 1px;
}

.workspace-visual::after {
  top: 20%;
  bottom: 20%;
  left: 50%;
  width: 1px;
  background: repeating-linear-gradient(0deg, rgba(184,242,230,.65) 0 3px, transparent 3px 8px);
}

.visual-core {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  width: 208px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid rgba(184, 242, 230, .26);
  border-radius: var(--app-radius-raised);
  background: rgba(12, 57, 67, .92);
  box-shadow: 0 15px 30px rgba(3, 24, 28, .28);
  transform: translate(-50%, -50%);
}

.core-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: var(--app-radius-comfortable);
  color: var(--petrol-900);
  background: var(--mint);
}

.core-mark i { width: 21px; height: 21px; stroke-width: 1.8; }

.core-copy strong {
  display: block;
  color: var(--app-surface);
  font-size: var(--app-type-15);
  line-height: 1.25;
}

.core-copy span {
  display: block;
  margin-top: 4px;
  color: rgba(255,255,255,.45);
  font-size: var(--app-type-12);
}

.visual-chip {
  position: absolute;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 11px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--app-radius-comfortable);
  color: rgba(255,255,255,.75);
  background: rgba(255,255,255,.07);
  font-size: var(--app-type-13);
  font-weight: 600;
}

.visual-chip span {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: var(--app-radius-icon);
  color: var(--mint);
  background: rgba(184, 242, 230, .10);
}

.visual-chip i { width: 15px; height: 15px; stroke-width: 1.8; }
.visual-chip em { font-style: normal; }
.chip-orders { top: 22px; left: 24px; }
.chip-stock { top: 22px; right: 24px; }
.chip-content { bottom: 22px; left: 24px; }
.chip-ai { right: 24px; bottom: 22px; }

.brand-foot {
  display: flex;
  align-items: center;
  gap: 9px;
  color: rgba(255,255,255,.46);
  font-size: var(--app-type-13);
}

.brand-foot i { width: 15px; height: 15px; color: rgba(184, 242, 230, .68); }

.form-panel {
  position: relative;
  height: 100%;
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding: 30px clamp(32px, 4vw, 72px);
  background:
    radial-gradient(circle at 90% 5%, rgba(184, 242, 230, .33), transparent 22%),
    var(--ivory);
}

.form-top {
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.help-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border: 1px solid transparent;
  border-radius: var(--app-radius-md);
  color: #61716f;
  background: transparent;
  font-size: var(--app-type-15);
  font-weight: 600;
  transition: .18s ease;
}

.help-button:hover {
  border-color: var(--line);
  color: var(--petrol-800);
  background: rgba(255,255,255,.7);
}

.help-button i { width: 18px; height: 18px; stroke-width: 1.8; }
.mobile-brand { display: none; }

.form-wrap {
  width: min(100%, 450px);
  margin: auto;
  padding: 34px 0 52px;
}

.login-card {
  padding: 34px;
  border: 1px solid rgba(214, 226, 223, .95);
  border-radius: var(--app-radius-xl);
  background: rgba(255,255,255,.94);
  box-shadow: var(--shadow);
}

.login-kicker {
  margin-bottom: 11px;
  color: var(--petrol-800);
  font-size: var(--app-type-13);
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.login-card h2 {
  margin: 0;
  font: 700 var(--app-type-32)/1.2 var(--app-font-heading);
  letter-spacing: -.035em;
}

.login-intro {
  margin: 10px 0 28px;
  color: var(--muted);
  font-size: var(--app-type-16);
  line-height: 1.55;
}

.alert {
  display: none;
  align-items: flex-start;
  gap: 10px;
  margin: 0 0 18px;
  padding: 12px 13px;
  border: 1px solid #f1ceca;
  border-radius: var(--app-radius-comfortable);
  color: var(--danger);
  background: var(--danger-soft);
  font-size: var(--app-type-14);
  line-height: 1.45;
}

.alert.visible { display: flex; }
.alert i { width: 17px; height: 17px; margin-top: 1px; flex: 0 0 auto; }
.field { margin-bottom: 18px; }

.field label {
  display: block;
  margin-bottom: 7px;
  color: #586865;
  font-size: var(--app-type-14);
  font-weight: 700;
}

.input-wrap { position: relative; }

.input-icon {
  position: absolute;
  top: 50%;
  left: 14px;
  width: 18px;
  height: 18px;
  color: #8b9997;
  pointer-events: none;
  transform: translateY(-50%);
  stroke-width: 1.8;
}

.field input {
  width: 100%;
  height: 50px;
  padding: 0 45px 0 43px;
  border: 1px solid #cbd9d6;
  border-radius: var(--app-radius-comfortable);
  outline: none;
  color: var(--ink);
  background: var(--app-surface);
  font-size: var(--app-type-16);
  transition: border-color .16s ease, box-shadow .16s ease, background .16s ease;
}

.field input::placeholder { color: #a1adaa; }
.field input:hover { border-color: #aebfbc; }

.field input:focus {
  border-color: #54b9a5;
  box-shadow: 0 0 0 4px rgba(84, 185, 165, .13);
}

.field.invalid input {
  border-color: #cf6660;
  background: #fffafa;
  box-shadow: 0 0 0 4px rgba(183, 69, 69, .08);
}

.password-toggle {
  position: absolute;
  top: 50%;
  right: 8px;
  width: 35px;
  height: 35px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: var(--app-radius-icon);
  color: #73827f;
  background: transparent;
  transform: translateY(-50%);
}

.password-toggle:hover { color: var(--petrol-800); background: var(--mint-soft); }
.password-toggle i { width: 18px; height: 18px; stroke-width: 1.8; }

.submit-button {
  width: 100%;
  min-height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 8px;
  padding: 12px 18px;
  border: 0;
  border-radius: var(--app-radius-comfortable);
  color: var(--app-surface);
  background: var(--petrol-800);
  box-shadow: 0 10px 24px rgba(15, 76, 92, .21);
  font-size: var(--app-type-16);
  font-weight: 700;
  transition: transform .16s ease, background .16s ease, box-shadow .16s ease;
}

.submit-button:hover {
  background: var(--petrol-900);
  box-shadow: 0 13px 28px rgba(15, 76, 92, .27);
  transform: translateY(-1px);
}

.submit-button:active { transform: translateY(0); }
.submit-button i { width: 18px; height: 18px; stroke-width: 2; }

.account-help {
  margin: 22px 0 0;
  padding-top: 20px;
  border-top: 1px solid #e6ecea;
  color: #82908e;
  font-size: var(--app-type-14);
  line-height: 1.55;
  text-align: center;
}

.account-help button {
  padding: 0;
  border: 0;
  color: var(--petrol-800);
  background: transparent;
  font-weight: 700;
}

.account-help button:hover { text-decoration: underline; }

.form-foot {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: #8b9896;
  font-size: var(--app-type-13);
}

.form-foot i { width: 14px; height: 14px; }

.scrim {
  position: fixed;
  inset: 0;
  z-index: 20;
  border: 0;
  opacity: 0;
  visibility: hidden;
  background: rgba(8, 27, 31, .48);
  backdrop-filter: blur(4px);
  transition: opacity .22s ease, visibility .22s ease;
}

.scrim.open { opacity: 1; visibility: visible; }

.help-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 30;
  width: min(410px, calc(100vw - 24px));
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding: 27px;
  border-left: 1px solid var(--line);
  background: var(--app-surface);
  box-shadow: -24px 0 70px rgba(8, 35, 41, .18);
  transform: translateX(102%);
  transition: transform .25s cubic-bezier(.2,.75,.2,1);
}

.help-drawer.open { transform: translateX(0); }

.drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 22px;
  border-bottom: 1px solid #e4ebe9;
}

.drawer-head h3 { margin: 0; font: 700 var(--app-type-23)/1.2 var(--app-font-heading); }

.close-button {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--app-radius-md);
  color: #667572;
  background: var(--app-surface);
}

.close-button:hover { color: var(--petrol-800); background: var(--mint-soft); }
.close-button i { width: 18px; height: 18px; }
.drawer-body { padding-top: 26px; }

.drawer-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border-radius: var(--app-radius-panel);
  color: var(--petrol-800);
  background: var(--mint-soft);
}

.drawer-icon i { width: 22px; height: 22px; }
.drawer-body h4 { margin: 0 0 8px; font-size: var(--app-type-18); }
.drawer-body p { margin: 0; color: var(--muted); font-size: var(--app-type-15); line-height: 1.65; }

.help-steps {
  display: grid;
  gap: 9px;
  margin: 24px 0;
}

.help-step {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 11px;
  align-items: start;
  padding: 13px;
  border: 1px solid #e0e9e7;
  border-radius: var(--app-radius-lg);
  background: #fbfcfb;
}

.help-step b {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: var(--app-radius-icon);
  color: var(--petrol-800);
  background: var(--mint-soft);
  font-size: var(--app-type-13);
}

.help-step span { color: #586865; font-size: var(--app-type-14); line-height: 1.5; }

.security-note {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 13px;
  border-radius: var(--app-radius-lg);
  color: #78571c;
  background: var(--amber-soft);
  font-size: var(--app-type-14);
  line-height: 1.5;
}

.security-note i { width: 17px; height: 17px; margin-top: 1px; flex: 0 0 auto; }

@media (max-width: 1050px) {
  .login-page { grid-template-columns: minmax(430px, .9fr) minmax(470px, 1.1fr); }
  .brand-panel { padding-inline: 42px; }
  .workspace-visual { height: 206px; }
  .visual-chip { padding: 8px; }
  .visual-chip > em { display: none; }
}

@media (min-width: 821px) and (max-height: 780px) {
  .brand-panel { padding-top: 24px; padding-bottom: 22px; }
  .brand-content { padding: 22px 0 18px; }
  .brand-content h1 { font-size: calc(clamp(36px, 3.4vw, 48px) + var(--app-type-shift)); }
  .brand-content > p { margin-top: 15px; font-size: var(--app-type-17); }
  .workspace-visual { height: 170px; margin-top: 20px; }
  .chip-orders, .chip-stock { top: 14px; }
  .chip-content, .chip-ai { bottom: 14px; }
  .form-panel { padding-top: 16px; padding-bottom: 16px; }
  .form-top { min-height: 38px; }
  .form-wrap { padding: 8px 0 12px; }
  .login-card { padding: 25px; }
  .login-card h2 { font-size: calc(29px + var(--app-type-shift)); }
  .login-intro { margin: 8px 0 18px; }
  .field { margin-bottom: 14px; }
  .account-help { margin-top: 16px; padding-top: 15px; }
}

@media (max-width: 820px) {
  html, body { height: auto; min-height: 100%; overflow: auto; }
  .login-page { display: block; }
  .brand-panel { display: none; }
  .form-panel { height: auto; min-height: 100vh; min-height: 100dvh; padding: 20px; }
  .form-top { justify-content: space-between; }
  .mobile-brand { display: inline-flex; align-items: center; gap: 10px; }
  .mobile-brand .brand-mark { width: 40px; height: 40px; border-radius: var(--app-radius-lg); }
  .mobile-brand .brand-mark i { width: 22px; height: 22px; }
  .mobile-brand strong { font: 700 var(--app-type-18)/1 var(--app-font-heading); }
  .form-wrap { padding-top: 45px; }
}

@media (max-width: 520px) {
  .form-panel { padding: 16px; }
  .help-button span { display: none; }
  .help-button {
    width: 40px;
    height: 40px;
    justify-content: center;
    padding: 0;
    border-color: var(--line);
    background: rgba(255,255,255,.8);
  }
  .form-wrap { padding: 28px 0 34px; }
  .login-card { padding: 25px 20px; border-radius: var(--app-radius-modal); }
  .login-card h2 { font-size: var(--app-type-28); }
  .form-foot { padding-bottom: 4px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}