:root {
  --avc-burgundy: #741011;
  --avc-burgundy-dark: #4d070b;
  --avc-burgundy-light: #941d1f;
  --avc-cream: #f7f3ed;
  --avc-paper: #fffdf9;
  --avc-ink: #241f1c;
  --avc-muted: #6d6762;
  --avc-line: #ded6cd;
  --avc-gold: #e3b666;
  --avc-success: #2f6a4f;
  --avc-error: #99403f;
  --focus-ring: rgba(116, 16, 17, 0.2);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background: var(--avc-cream);
  color: var(--avc-ink);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

button,
input {
  font: inherit;
}

a {
  color: var(--avc-burgundy);
}

.auth-shell {
  display: grid;
  grid-template-columns: minmax(340px, 1.02fr) minmax(460px, 0.98fr);
  min-height: 100vh;
  min-height: 100svh;
}

.brand-panel {
  isolation: isolate;
  position: relative;
  display: flex;
  min-height: 100%;
  overflow: hidden;
  padding: clamp(2rem, 5vw, 5rem);
  color: #fff;
  background: linear-gradient(145deg, var(--avc-burgundy-dark) 0%, var(--avc-burgundy) 54%, var(--avc-burgundy-light) 100%);
}

.brand-panel::before {
  position: absolute;
  z-index: -2;
  inset: 0;
  background:
    linear-gradient(120deg, transparent 0 58%, rgba(255, 255, 255, 0.08) 58.2% 58.8%, transparent 59%),
    linear-gradient(120deg, transparent 0 67%, rgba(255, 255, 255, 0.055) 67.2% 67.8%, transparent 68%),
    linear-gradient(120deg, transparent 0 76%, rgba(255, 255, 255, 0.04) 76.2% 76.8%, transparent 77%);
  content: "";
}

.brand-panel::after {
  position: absolute;
  z-index: -1;
  top: clamp(4rem, 10vw, 7rem);
  right: clamp(1rem, 6vw, 5rem);
  width: clamp(11rem, 22vw, 19rem);
  aspect-ratio: 411 / 478;
  background: url("../assets/images/logo.png") center / contain no-repeat;
  content: "";
  mix-blend-mode: screen;
  opacity: 0.2;
  transform: rotate(4deg);
}

.brand-content {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: min(100%, 700px);
  min-height: 100%;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 64px;
  height: 70px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.36);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 14px 40px rgba(42, 3, 7, 0.18);
  backdrop-filter: blur(8px);
}

.brand-mark img {
  display: block;
  width: 43px;
  height: auto;
  filter: drop-shadow(0 4px 10px rgba(33, 0, 3, 0.16));
}

.brand-name {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  font-weight: 400;
  letter-spacing: 0.01em;
  line-height: 1.05;
}

.brand-name span {
  display: block;
}

.brand-name span:last-child {
  margin-top: 0.28rem;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 0.52em;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
}

.brand-message {
  max-width: 590px;
  margin: auto 0;
  padding: clamp(4rem, 11vh, 8rem) 0;
}

.brand-kicker,
.auth-kicker {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 1rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.brand-kicker {
  color: #f4d79e;
}

.brand-kicker::before,
.auth-kicker::before {
  width: 2.2rem;
  height: 1px;
  background: currentColor;
  content: "";
}

.brand-message h1 {
  max-width: 10ch;
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(3rem, 6vw, 5.8rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 0.96;
  text-wrap: balance;
}

.brand-message h1.login-headline {
  max-width: none;
  font-size: clamp(3rem, 5vw, 5rem);
}

.login-headline span {
  display: block;
}

@media (min-width: 1100px) {
  .login-headline span {
    white-space: nowrap;
  }
}

.brand-message > p:last-child {
  max-width: 36rem;
  margin: 1.5rem 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(1rem, 1.6vw, 1.18rem);
  line-height: 1.65;
}

.brand-footer {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-footer::before {
  width: 2.2rem;
  height: 1px;
  background: #f4d79e;
  content: "";
}

.landscape {
  position: absolute;
  z-index: -1;
  right: -10%;
  bottom: -2px;
  left: -10%;
  height: 35%;
  opacity: 0.64;
  pointer-events: none;
}

.ridge {
  position: absolute;
  right: 0;
  bottom: -45%;
  left: 0;
  height: 100%;
  border-radius: 50% 50% 0 0 / 44% 44% 0 0;
  background: #51090d;
  transform: rotate(-3deg) scale(1.15);
}

.ridge-back {
  right: -14%;
  bottom: -17%;
  left: 34%;
  background: #681015;
  opacity: 0.9;
  transform: rotate(7deg) scale(1.12);
}

.vineyard-lines {
  position: absolute;
  right: -10%;
  bottom: -24%;
  left: 18%;
  height: 100%;
  background: repeating-linear-gradient(
    112deg,
    transparent 0 34px,
    rgba(246, 217, 157, 0.2) 35px 37px,
    transparent 38px 68px
  );
  transform: perspective(380px) rotateX(57deg) rotateZ(-5deg);
  transform-origin: bottom;
}

.auth-panel {
  display: grid;
  min-height: 100%;
  padding: clamp(2rem, 6vw, 6rem);
  place-items: center;
  background:
    linear-gradient(145deg, rgba(227, 182, 102, 0.1), transparent 34%),
    var(--avc-cream);
}

.auth-wrap {
  width: min(100%, 470px);
}

.mobile-brand {
  display: none;
}

.auth-kicker {
  color: var(--avc-burgundy);
}

.auth-wrap h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.7rem, 5vw, 4.25rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 0.98;
  text-wrap: balance;
}

.auth-intro,
.status-copy {
  margin: 1.2rem 0 2rem;
  color: var(--avc-muted);
  font-size: 1rem;
  line-height: 1.65;
}

.notice {
  margin: 0 0 1.25rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--avc-line);
  border-left-width: 3px;
  border-radius: 8px;
  background: rgba(255, 253, 249, 0.82);
  color: #524b46;
  font-size: 0.86rem;
  line-height: 1.5;
}

.notice strong {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--avc-ink);
}

.notice p {
  margin: 0;
}

.notice-info {
  border-left-color: var(--avc-gold);
}

.notice-success {
  border-left-color: var(--avc-success);
}

.notice-error {
  border-left-color: var(--avc-error);
}

.field {
  margin-bottom: 1.25rem;
}

.field-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

label {
  display: block;
  margin: 0 0 0.5rem;
  color: #3f3935;
  font-size: 0.84rem;
  font-weight: 700;
}

input {
  width: 100%;
  height: 54px;
  padding: 0 1rem;
  border: 1px solid var(--avc-line);
  border-radius: 10px;
  outline: 0;
  background: var(--avc-paper);
  color: var(--avc-ink);
  transition: border-color 150ms ease, box-shadow 150ms ease, background-color 150ms ease;
}

input::placeholder {
  color: #9a918a;
}

input:hover {
  border-color: #c5bab0;
}

input:focus {
  border-color: var(--avc-burgundy);
  background: #fff;
  box-shadow: 0 0 0 4px var(--focus-ring);
}

.password-wrap {
  position: relative;
}

.password-wrap input {
  padding-right: 4.5rem;
}

.password-toggle {
  position: absolute;
  top: 50%;
  right: 0.65rem;
  min-width: 3.2rem;
  padding: 0.45rem 0.5rem;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--avc-burgundy);
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 700;
  transform: translateY(-50%);
}

.password-toggle:hover {
  background: rgba(116, 16, 17, 0.07);
}

.password-toggle:focus-visible {
  outline: 2px solid var(--avc-burgundy);
  outline-offset: 2px;
}

.inline-link {
  color: var(--avc-burgundy);
  font-size: 0.8rem;
  font-weight: 700;
  text-decoration: none;
}

.inline-link:hover,
.text-action:hover,
.support-note a:hover,
.status-note a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.submit-button,
.primary-action {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  border: 0;
  border-radius: 10px;
  background: var(--avc-burgundy);
  box-shadow: 0 12px 24px rgba(116, 16, 17, 0.18);
  color: #fff;
  cursor: pointer;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-decoration: none;
  transition: transform 150ms ease, background-color 150ms ease, box-shadow 150ms ease;
}

.submit-button {
  width: 100%;
}

.submit-button::after,
.primary-action::after {
  font-size: 1.05rem;
  content: "\2192";
  transition: transform 150ms ease;
}

.submit-button:hover,
.primary-action:hover {
  background: #851416;
  box-shadow: 0 15px 30px rgba(116, 16, 17, 0.24);
  transform: translateY(-1px);
}

.submit-button:hover::after,
.primary-action:hover::after {
  transform: translateX(3px);
}

.submit-button:focus-visible,
.primary-action:focus-visible,
.text-action:focus-visible,
.registration-prompt a:focus-visible,
.brand-lockup:focus-visible,
.mobile-brand:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 4px;
}

.submit-button[disabled] {
  cursor: wait;
  opacity: 0.72;
  transform: none;
}

.registration-prompt {
  margin: 1.2rem 0 0;
  color: var(--avc-muted);
  font-size: 0.82rem;
  text-align: center;
}

.registration-prompt a {
  color: var(--avc-burgundy);
  font-weight: 700;
  text-decoration: none;
}

.registration-prompt a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.support-note,
.status-note {
  margin: 1.3rem 0 0;
  padding: 0.9rem 0 0.9rem 1rem;
  border-left: 2px solid var(--avc-gold);
  color: #817872;
  font-size: 0.79rem;
  line-height: 1.55;
}

.support-note a,
.status-note a {
  font-weight: 700;
  text-decoration: none;
}

.secure-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  margin: 2rem 0 0;
  padding-top: 1.2rem;
  border-top: 1px solid var(--avc-line);
  color: #817872;
  font-size: 0.74rem;
}

.secure-note::before {
  width: 1.5rem;
  height: 1px;
  background: var(--avc-success);
  content: "";
}

.status-copy {
  margin-bottom: 0;
}

.status-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 2.2rem;
}

.primary-action {
  padding: 0.9rem 1.35rem;
}

.text-action {
  padding: 0.9rem 0.35rem;
  color: var(--avc-burgundy);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
}

/* Login ambience system */
.brand-panel.ambience-enabled {
  --ambience-deep: #4d070b;
  --ambience-mid: #741011;
  --ambience-light: #941d1f;
  --ambience-glow: rgba(255, 210, 145, 0.18);
  --engraving-opacity: 0.24;
  --landscape-opacity: 0.2;
  --watermark-opacity: 0.18;
  --season-color: #edd395;
  background:
    radial-gradient(circle at 82% 22%, var(--ambience-glow), transparent 34%),
    linear-gradient(145deg, var(--ambience-deep) 0%, var(--ambience-mid) 54%, var(--ambience-light) 100%);
  transition: background-color 700ms ease, color 700ms ease;
}

.ambience-enabled .brand-content {
  position: relative;
  z-index: 5;
}

.brand-panel.ambience-enabled::before {
  z-index: 1;
  opacity: 0.72;
  transition: opacity 700ms ease;
}

.brand-panel.ambience-enabled::after {
  z-index: 2;
  opacity: var(--watermark-opacity);
  transition: filter 700ms ease, opacity 700ms ease, transform 700ms ease;
}

.ambience-enabled .landscape {
  z-index: 1;
  opacity: var(--landscape-opacity);
  transition: opacity 700ms ease;
}

.ambience-canvas,
.ambience-canvas > * {
  pointer-events: none;
}

.ambience-canvas {
  position: absolute;
  z-index: 0;
  inset: 0;
  overflow: hidden;
}

.vineyard-engraving,
.celestial-glow,
.star-field,
.lamp-beam,
.lamp-light,
.street-lamp,
.season-art {
  position: absolute;
  transition: filter 700ms ease, opacity 700ms ease, transform 700ms ease;
}

.vineyard-engraving {
  z-index: 0;
  inset: 0;
  background: url("../assets/images/auth-vineyard-ambience.jpg") center bottom / cover no-repeat;
  filter: saturate(0.62) contrast(1.06);
  mix-blend-mode: screen;
  opacity: var(--engraving-opacity);
}

.celestial-glow {
  z-index: 1;
  top: -12%;
  right: -13%;
  width: min(58vw, 700px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 222, 170, 0.34), rgba(255, 183, 116, 0.11) 35%, transparent 68%);
  filter: blur(4px);
  opacity: 0;
}

.star-field {
  z-index: 1;
  inset: 0;
  background:
    radial-gradient(circle at 15% 14%, rgba(255, 244, 216, 0.8) 0 1px, transparent 1.5px),
    radial-gradient(circle at 33% 8%, rgba(255, 244, 216, 0.55) 0 1px, transparent 1.4px),
    radial-gradient(circle at 48% 18%, rgba(255, 244, 216, 0.68) 0 1px, transparent 1.5px),
    radial-gradient(circle at 68% 9%, rgba(255, 244, 216, 0.5) 0 1px, transparent 1.4px),
    radial-gradient(circle at 83% 17%, rgba(255, 244, 216, 0.72) 0 1px, transparent 1.5px),
    radial-gradient(circle at 91% 6%, rgba(255, 244, 216, 0.42) 0 1px, transparent 1.4px),
    radial-gradient(circle at 57% 5%, rgba(255, 244, 216, 0.42) 0 1px, transparent 1.4px);
  opacity: 0;
}

.street-lamp {
  z-index: 3;
  top: 0;
  right: -2.5%;
  width: min(24vw, 280px);
  height: 71%;
  color: rgba(18, 5, 8, 0.9);
  filter: drop-shadow(-12px 18px 25px rgba(0, 0, 0, 0.22));
  opacity: 0;
}

.street-lamp-post,
.street-lamp-brace {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-width: 16;
}

.street-lamp-brace {
  stroke-width: 5;
}

.street-lamp-cap,
.street-lamp-finial {
  fill: currentColor;
}

.street-lamp-glass {
  fill: rgba(255, 220, 145, 0.62);
  stroke: currentColor;
  stroke-width: 7;
}

.lamp-light {
  z-index: 2;
  top: 9.5%;
  right: clamp(8.8rem, 12.3vw, 12rem);
  width: clamp(4rem, 7vw, 7rem);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 230, 169, 0.72), rgba(255, 204, 120, 0.22) 42%, transparent 70%);
  filter: blur(7px);
  opacity: 0;
}

.lamp-beam {
  z-index: 3;
  top: 14%;
  right: 4%;
  width: min(31vw, 370px);
  height: 47%;
  background: linear-gradient(155deg, rgba(255, 235, 183, 0.3), rgba(255, 219, 148, 0.1) 52%, transparent 82%);
  clip-path: polygon(48% 0, 67% 0, 100% 100%, 0 100%);
  filter: blur(8px);
  mix-blend-mode: screen;
  opacity: 0;
  transform: rotate(3deg);
  transform-origin: 58% 0;
}

.season-art {
  z-index: 2;
  top: 0;
  right: 0;
  width: min(66vw, 780px);
  height: 76%;
  color: var(--season-color);
  opacity: 0.46;
}

.season-layer {
  opacity: 0;
  transition: opacity 650ms ease;
}

.season-line,
.winter-frost {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-width: 4;
}

.winter-frost {
  stroke-width: 2;
}

.spring-blossom circle,
.summer-leaf,
.autumn-leaf {
  fill: currentColor;
}

.spring-blossom .blossom-center {
  fill: #f0ba72;
}

.autumn-leaf {
  transform-box: fill-box;
  transform-origin: center;
}

.autumn-leaf:nth-child(2) {
  transform: rotate(18deg);
}

.autumn-leaf:nth-child(3) {
  transform: rotate(-26deg);
}

.autumn-leaf:nth-child(4) {
  transform: rotate(31deg);
}

.autumn-leaf:nth-child(5) {
  transform: rotate(-14deg);
}

.ambience-enabled[data-time="dawn"] {
  --ambience-deep: #3f1018;
  --ambience-mid: #7f2024;
  --ambience-light: #b85e48;
  --ambience-glow: rgba(255, 219, 163, 0.34);
  --engraving-opacity: 0.2;
  --landscape-opacity: 0.16;
  --watermark-opacity: 0.16;
}

.ambience-enabled[data-time="dawn"] .celestial-glow {
  top: 34%;
  right: -16%;
  opacity: 0.76;
}

.ambience-enabled[data-time="day"] {
  --ambience-deep: #5a0a0d;
  --ambience-mid: #831416;
  --ambience-light: #a82b28;
  --ambience-glow: rgba(255, 221, 168, 0.2);
  --engraving-opacity: 0.27;
  --landscape-opacity: 0.16;
  --watermark-opacity: 0.19;
}

.ambience-enabled[data-time="day"] .celestial-glow {
  opacity: 0.38;
}

.ambience-enabled[data-time="dusk"] {
  --ambience-deep: #350812;
  --ambience-mid: #69121a;
  --ambience-light: #9a382f;
  --ambience-glow: rgba(244, 164, 98, 0.3);
  --engraving-opacity: 0.21;
  --landscape-opacity: 0.23;
  --watermark-opacity: 0.16;
}

.ambience-enabled[data-time="dusk"] .celestial-glow {
  top: 24%;
  right: -21%;
  background: radial-gradient(circle, rgba(255, 185, 115, 0.39), rgba(225, 99, 64, 0.12) 38%, transparent 67%);
  opacity: 0.68;
}

.ambience-enabled[data-time="night"] {
  --ambience-deep: #15060b;
  --ambience-mid: #2b0810;
  --ambience-light: #541018;
  --ambience-glow: rgba(122, 60, 78, 0.13);
  --engraving-opacity: 0.13;
  --landscape-opacity: 0.31;
  --watermark-opacity: 0.24;
}

.ambience-enabled[data-time="night"]::before {
  opacity: 0.2;
}

.ambience-enabled[data-time="night"]::after {
  filter: drop-shadow(0 0 24px rgba(255, 223, 157, 0.19));
  transform: rotate(2deg) translate(-1.5%, 3%);
}

.ambience-enabled[data-time="night"] .star-field {
  opacity: 0.74;
}

.ambience-enabled[data-time="night"] .street-lamp {
  opacity: 0.7;
}

.ambience-enabled[data-time="night"] .lamp-beam {
  opacity: 0.48;
}

.ambience-enabled[data-time="night"] .lamp-light {
  opacity: 0.72;
}

.ambience-enabled[data-season="spring"] {
  --season-color: #f0c5b6;
}

.ambience-enabled[data-season="summer"] {
  --season-color: #e1cd86;
}

.ambience-enabled[data-season="autumn"] {
  --season-color: #e2a052;
}

.ambience-enabled[data-season="winter"] {
  --season-color: #e5ddd7;
}

.ambience-enabled[data-season="spring"] .season-layer-spring,
.ambience-enabled[data-season="summer"] .season-layer-summer,
.ambience-enabled[data-season="autumn"] .season-layer-autumn,
.ambience-enabled[data-season="winter"] .season-layer-winter {
  opacity: 0.38;
}

.ambience-enabled[data-season="spring"] .vineyard-engraving {
  filter: saturate(0.54) brightness(1.07) contrast(1.02);
}

.ambience-enabled[data-season="summer"] .vineyard-engraving {
  filter: saturate(0.72) contrast(1.08);
}

.ambience-enabled[data-season="autumn"] .vineyard-engraving {
  filter: sepia(0.16) saturate(0.86) contrast(1.08);
}

.ambience-enabled[data-season="winter"] .vineyard-engraving {
  filter: grayscale(0.38) brightness(0.92) contrast(1.04);
}

/* Staging-only ambience review controls */
.ambience-lab {
  position: fixed;
  z-index: 30;
  right: 1rem;
  bottom: 1rem;
  width: min(370px, calc(100vw - 2rem));
  border: 1px solid rgba(116, 16, 17, 0.16);
  border-radius: 14px;
  background: rgba(255, 253, 249, 0.94);
  box-shadow: 0 18px 50px rgba(45, 20, 16, 0.2);
  color: var(--avc-ink);
  backdrop-filter: blur(14px);
}

.ambience-lab summary {
  display: flex;
  min-height: 46px;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 0.85rem;
  border-radius: 14px;
  color: var(--avc-burgundy);
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  list-style: none;
  text-transform: uppercase;
}

.ambience-lab summary::-webkit-details-marker {
  display: none;
}

.ambience-lab summary::before {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--avc-gold);
  box-shadow: 0 0 0 4px rgba(227, 182, 102, 0.17);
  content: "";
}

.ambience-lab summary span {
  margin-right: auto;
}

.ambience-lab summary strong {
  color: var(--avc-muted);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: none;
}

.ambience-lab[open] summary {
  border-bottom: 1px solid var(--avc-line);
  border-radius: 14px 14px 0 0;
}

.ambience-lab-panel {
  padding: 0.9rem;
}

.ambience-lab-intro {
  margin: 0 0 0.9rem;
  color: var(--avc-muted);
  font-size: 0.75rem;
  line-height: 1.45;
}

.ambience-lab-group {
  min-width: 0;
  margin: 0 0 0.9rem;
  padding: 0;
  border: 0;
}

.ambience-lab-group legend {
  margin-bottom: 0.45rem;
  color: #4b433e;
  font-size: 0.7rem;
  font-weight: 800;
}

.ambience-options {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.35rem;
}

.ambience-options button,
.ambience-copy-link,
.ambience-reset {
  min-height: 34px;
  border: 1px solid var(--avc-line);
  border-radius: 7px;
  background: var(--avc-paper);
  color: #544c47;
  cursor: pointer;
  font-size: 0.67rem;
  font-weight: 700;
}

.ambience-options button:hover,
.ambience-copy-link:hover,
.ambience-reset:hover {
  border-color: #c3b4a9;
  background: #fff;
}

.ambience-options button[aria-pressed="true"] {
  border-color: var(--avc-burgundy);
  background: var(--avc-burgundy);
  color: #fff;
}

.ambience-options button:focus-visible,
.ambience-copy-link:focus-visible,
.ambience-reset:focus-visible,
.ambience-lab summary:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

.ambience-lab-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.55rem;
  padding-top: 0.1rem;
}

.ambience-copy-link,
.ambience-reset {
  padding: 0.45rem 0.7rem;
}

.ambience-reset {
  border-color: transparent;
  background: transparent;
  color: var(--avc-burgundy);
}

.ambience-copy-status {
  min-height: 1em;
  margin: 0.5rem 0 0;
  color: var(--avc-success);
  font-size: 0.68rem;
}

@media (prefers-reduced-motion: no-preference) {
  .brand-mark {
    animation: settle-in 520ms cubic-bezier(0.22, 1, 0.36, 1) both;
  }

  .brand-message > * {
    animation: rise-in 580ms 80ms cubic-bezier(0.22, 1, 0.36, 1) both;
  }

  .auth-wrap {
    animation: rise-in 540ms 120ms cubic-bezier(0.22, 1, 0.36, 1) both;
  }

  .ambience-enabled[data-season="autumn"] .autumn-leaf {
    animation: leaf-drift 8s ease-in-out infinite alternate;
  }

  .ambience-enabled[data-time="night"] .lamp-light {
    animation: lamp-breathe 5.5s ease-in-out infinite;
  }
}

@keyframes settle-in {
  from {
    opacity: 0;
    transform: translateY(-8px) rotate(-2deg);
  }
  to {
    opacity: 1;
    transform: translateY(0) rotate(0);
  }
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes leaf-drift {
  from {
    translate: 0 -2px;
  }
  to {
    translate: -9px 12px;
  }
}

@keyframes lamp-breathe {
  0%,
  100% {
    opacity: 0.62;
    scale: 0.98;
  }
  50% {
    opacity: 0.74;
    scale: 1.04;
  }
}

@media (max-width: 900px) {
  .auth-shell {
    grid-template-columns: minmax(290px, 0.82fr) minmax(430px, 1.18fr);
  }

  .brand-message h1 {
    font-size: clamp(3rem, 7vw, 4.5rem);
  }

  .street-lamp {
    right: -8%;
    width: 34vw;
  }

  .season-art {
    right: -14%;
    width: 82vw;
  }
}

@media (max-width: 760px) {
  .auth-shell {
    display: block;
  }

  .brand-panel {
    display: none;
  }

  .ambience-lab {
    display: none;
  }

  .auth-panel {
    min-height: 100vh;
    min-height: 100svh;
    padding: 2rem 1.35rem;
    place-items: start center;
  }

  .auth-wrap {
    margin: auto 0;
    padding: 1.5rem 0;
  }

  .mobile-brand {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 3rem;
    color: var(--avc-burgundy);
    text-decoration: none;
  }

  .mobile-brand img {
    width: 44px;
    height: auto;
  }

  .mobile-brand p {
    margin: 0;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.1rem;
    line-height: 1.1;
  }

  .mobile-brand span {
    display: block;
    margin-top: 0.22rem;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 0.58em;
    font-weight: 700;
    letter-spacing: 0.17em;
    text-transform: uppercase;
  }

  .status-actions {
    align-items: stretch;
    flex-direction: column;
    gap: 0.35rem;
  }
}

/* Realistic vineyard cycle and palette workshop */
.login-ambience-page {
  overflow: hidden;
}

.brand-panel.ambience-enabled {
  --ambience-sky-top: #6798b8;
  --ambience-sky-mid: #a7c2c4;
  --ambience-sky-bottom: #d8e5df;
  --ambience-horizon-color: #f5c879;
  --ambience-mountain-back: #9cb1ad;
  --ambience-mountain-front: #718d8b;
  --ambience-ground: #6f7f70;
  --ambience-vine-ink: #223230;
  --ambience-left-text: #fffdf8;
  --ambience-left-muted: #eef4f1;
  --ambience-left-accent: #f5d28d;
  --ambience-copy-scrim: rgba(15, 22, 23, 0.26);
  --ambience-sun-color: #efc46d;
  --ambience-sun-aura-opacity: 0.2;
  --ambience-moon-color: #e7edef;
  color: var(--ambience-left-text);
  background: var(--ambience-sky-top);
  transition: color 180ms linear, background-color 180ms linear;
}

.brand-panel.ambience-enabled::before,
.brand-panel.ambience-enabled::after,
.ambience-enabled .landscape {
  display: none;
}

.ambience-enabled .brand-content {
  position: relative;
  z-index: 8;
  pointer-events: none;
}

.ambience-enabled .brand-lockup {
  pointer-events: auto;
}

.ambience-enabled .brand-mark {
  border-color: rgba(255, 255, 255, 0.36);
  background: rgba(255, 255, 255, 0.1);
}

.ambience-enabled .brand-kicker,
.ambience-enabled .brand-footer::before {
  color: var(--ambience-left-accent);
}

.ambience-enabled .brand-message {
  text-shadow: 0 2px 24px rgba(20, 24, 27, 0.28);
}

.ambience-enabled .brand-message > p:last-child {
  color: var(--ambience-left-muted);
}

.ambience-enabled .brand-message-functional {
  position: relative;
  z-index: 1;
  max-width: 36rem;
  text-shadow: 0 2px 18px rgba(20, 24, 27, 0.2);
}

.ambience-enabled .brand-message-functional::before {
  position: absolute;
  z-index: -1;
  inset: -2rem -2.5rem;
  border-radius: 32px;
  background: radial-gradient(ellipse at 18% 50%, var(--ambience-copy-scrim) 0%, transparent 74%);
  content: "";
  filter: blur(8px);
  pointer-events: none;
}

.ambience-enabled .brand-message h1.brand-portal-title {
  display: flex;
  max-width: none;
  align-items: center;
  gap: 0.65rem;
  margin: 0;
  color: var(--ambience-left-accent);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  line-height: 1.2;
  text-transform: uppercase;
}

.ambience-enabled .brand-message h1.brand-portal-title::before {
  width: 2.2rem;
  height: 1px;
  flex: 0 0 auto;
  background: currentColor;
  content: "";
}

.ambience-enabled .brand-capabilities,
.ambience-enabled .brand-message > p.brand-capabilities:last-child {
  margin: 1.15rem 0 0;
  color: var(--ambience-left-text);
  font-size: clamp(0.95rem, 1.35vw, 1.08rem);
  font-weight: 500;
  letter-spacing: 0.025em;
  line-height: 1.55;
}

.ambience-enabled .brand-capabilities span {
  margin: 0 0.38rem;
  color: var(--ambience-left-accent);
}

.ambience-enabled .brand-footer {
  margin-bottom: 7.5rem;
  color: rgba(255, 253, 248, 0.84);
  text-shadow: 0 1px 10px rgba(18, 20, 20, 0.32);
}

.ambience-canvas {
  position: absolute;
  z-index: 0;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.ambience-atmosphere {
  position: absolute;
  z-index: 0;
  inset: 0;
  width: 100%;
  height: 100%;
}

.ambience-sky {
  fill: url(#ambience-sky-gradient);
}

.ambience-horizon-glow {
  fill: url(#ambience-horizon-gradient);
}

.ambience-mountain-back {
  fill: var(--ambience-mountain-back);
  opacity: 0.52;
}

.ambience-mountain-front {
  fill: var(--ambience-mountain-front);
  opacity: 0.92;
}

.ambience-ground {
  fill: var(--ambience-ground);
}

.ambience-furrows path {
  fill: none;
  stroke: rgba(242, 206, 143, 0.24);
  stroke-width: 1.1;
}

.ambience-sun-core {
  fill: url(#ambience-sun-disc-gradient);
}

.ambience-sun-aura {
  fill: url(#ambience-sun-aura-gradient);
  opacity: var(--ambience-sun-aura-opacity);
  pointer-events: none;
}

.ambience-sun-ring {
  fill: none;
  stroke: rgba(250, 220, 163, 0.46);
  stroke-width: 1.4;
  opacity: 0;
}

.ambience-moon-core {
  fill: var(--ambience-moon-color);
}

.ambience-moon-cut {
  fill: var(--ambience-sky-top);
}

.ambience-stars circle {
  fill: #f7dfb0;
}

.ambience-celestial {
  cursor: grab;
  pointer-events: auto;
  touch-action: none;
}

.ambience-celestial-drag-target {
  fill: transparent;
  cursor: grab;
  pointer-events: all;
  touch-action: none;
}

.ambience-celestial .ambience-sun-ring,
.ambience-celestial .ambience-moon-core {
  transition: filter 160ms ease, opacity 160ms ease, stroke-width 160ms ease;
}

.ambience-celestial:hover .ambience-sun-ring,
.celestial-is-dragging #ambience-sun .ambience-sun-ring {
  opacity: 0.38;
  filter: drop-shadow(0 0 9px rgba(247, 219, 164, 0.42));
}

.ambience-celestial:hover .ambience-moon-core {
  filter: drop-shadow(0 0 9px rgba(247, 219, 164, 0.42));
}

.celestial-is-dragging .ambience-celestial-drag-target {
  cursor: grabbing;
}

.celestial-is-dragging .ambience-celestial {
  cursor: grabbing;
}

.vineyard-season-layer {
  position: absolute;
  z-index: 2;
  inset: 0;
  background: var(--ambience-vine-ink);
  opacity: 0;
  transition: opacity 180ms linear;
  -webkit-mask-position: center bottom;
  mask-position: center bottom;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-size: auto 78%;
  mask-size: auto 78%;
}

.ambience-scene-wash {
  position: absolute;
  z-index: 3;
  inset: 0;
  background: linear-gradient(90deg, rgba(22, 22, 23, 0.2), transparent 45%, rgba(22, 22, 23, 0.05));
}

.vineyard-falling-leaves {
  position: absolute;
  z-index: 4;
  inset: 0;
  opacity: 0;
  transition: opacity 180ms linear;
}

.vineyard-falling-leaf {
  position: absolute;
  width: 12px;
  height: 8px;
  border-radius: 70% 10% 70% 10%;
  background: var(--ambience-vine-ink);
  opacity: var(--leaf-opacity);
  transform: rotate(var(--leaf-rotate));
}

/* The functional side stays recognizably AVC while the vineyard side can roam. */
.login-ambience-page .auth-panel {
  background:
    radial-gradient(circle at 100% 0, rgba(227, 182, 102, 0.16), transparent 38%),
    linear-gradient(145deg, #651016, #3f060b);
}

.login-ambience-page .auth-kicker,
.login-ambience-page .inline-link,
.login-ambience-page .support-note a {
  color: var(--avc-gold);
}

.login-ambience-page .auth-wrap h2 {
  color: #fffaf3;
}

.login-ambience-page .auth-intro,
.login-ambience-page .support-note {
  color: #d8bdba;
}

.login-ambience-page label {
  color: #f7e9df;
}

.login-ambience-page input:not(.ambience-range) {
  background: #fffaf3;
  color: var(--avc-ink);
}

.login-ambience-page input:not(.ambience-range):focus {
  border-color: var(--avc-gold);
  box-shadow: 0 0 0 4px rgba(227, 182, 102, 0.2);
}

.login-ambience-page .password-toggle {
  color: var(--avc-burgundy);
}

.login-ambience-page .submit-button {
  background: var(--avc-gold);
  box-shadow: 0 12px 28px rgba(30, 0, 4, 0.28);
  color: #43070b;
}

.login-ambience-page .submit-button:hover {
  background: #edc77f;
  box-shadow: 0 15px 30px rgba(30, 0, 4, 0.34);
}

.login-ambience-page .registration-prompt {
  color: #d8bdba;
}

.login-ambience-page .registration-prompt a {
  color: #fffaf3;
}

.login-ambience-page .registration-prompt a:focus-visible {
  outline-color: rgba(227, 182, 102, 0.62);
}

.login-ambience-page .secure-note {
  border-top-color: rgba(255, 255, 255, 0.15);
  color: rgba(255, 250, 243, 0.56);
}

.login-ambience-page .secure-note::before {
  background: var(--avc-gold);
}

.login-ambience-page .notice {
  background: rgba(255, 250, 243, 0.95);
}

/* Staging-only continuous test controls */
.ambience-lab {
  right: calc(49% + 1rem);
  bottom: 1rem;
  left: 1rem;
  width: auto;
  max-height: calc(100vh - 2rem);
  border-color: rgba(255, 255, 255, 0.24);
  background: rgba(28, 14, 17, 0.84);
  color: #fff;
  box-shadow: 0 20px 60px rgba(26, 0, 4, 0.3);
  overflow: auto;
  backdrop-filter: blur(18px);
}

.ambience-lab summary {
  color: #fff;
}

.ambience-lab summary strong,
.ambience-lab-intro {
  color: rgba(255, 255, 255, 0.62);
}

.ambience-lab[open] summary {
  border-bottom-color: rgba(255, 255, 255, 0.14);
}

.ambience-lab-panel {
  padding: 0.8rem 0.95rem 0.9rem;
}

.ambience-lab-group legend {
  color: #fff;
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ambience-palette-options {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.4rem;
}

.ambience-palette-options button {
  display: flex;
  min-width: 0;
  min-height: 36px;
  align-items: center;
  gap: 0.42rem;
  padding: 0.35rem 0.45rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.045);
  color: #fff;
  cursor: pointer;
  font-size: 0.58rem;
  font-weight: 700;
  text-align: left;
}

.ambience-palette-options button[aria-pressed="true"] {
  border-color: var(--avc-gold);
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 0 0 1px rgba(227, 182, 102, 0.55);
}

.ambience-palette-options button span:last-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ambience-palette-swatch {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 6px;
  background: linear-gradient(135deg, var(--swatch-a), var(--swatch-b));
}

.ambience-sliders {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1rem;
}

.ambience-slider-label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.7rem;
  margin-bottom: 0.25rem;
}

.ambience-slider-label label {
  margin: 0;
  color: #fff;
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ambience-slider-label output {
  color: #f4d79e;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.76rem;
  white-space: nowrap;
}

.ambience-range {
  width: 100%;
  height: 4px;
  margin: 0.45rem 0 0.25rem;
  padding: 0;
  border: 0;
  border-radius: 999px;
  appearance: none;
  background: rgba(255, 255, 255, 0.22);
  cursor: pointer;
}

.ambience-range::-webkit-slider-thumb {
  width: 17px;
  height: 17px;
  border: 2px solid #fff;
  border-radius: 50%;
  appearance: none;
  background: var(--avc-gold);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.32);
}

.ambience-range::-moz-range-thumb {
  width: 15px;
  height: 15px;
  border: 2px solid #fff;
  border-radius: 50%;
  background: var(--avc-gold);
}

.ambience-range-marks {
  display: flex;
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.46);
  font-size: 0.52rem;
  text-transform: uppercase;
}

.ambience-solar-status {
  margin: 0.72rem 0 0;
  color: rgba(255, 255, 255, 0.56);
  font-size: 0.61rem;
  letter-spacing: 0.035em;
  text-align: right;
}

.ambience-presets {
  display: flex;
  justify-content: flex-end;
  gap: 0.35rem;
  margin-top: 0.75rem;
}

.ambience-presets button,
.ambience-copy-link,
.ambience-reset {
  min-height: 31px;
  padding: 0 0.65rem;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  cursor: pointer;
  font-size: 0.62rem;
  font-weight: 700;
}

.ambience-presets button[aria-pressed="true"] {
  border-color: var(--avc-gold);
  box-shadow: 0 0 0 1px var(--avc-gold);
}

.ambience-presets .ambience-play {
  width: 32px;
  padding: 0;
  border-color: #f4d79e;
  background: #f4d79e;
  color: #3b0509;
}

.ambience-lab-actions {
  justify-content: flex-end;
  margin-top: 0.65rem;
}

.ambience-reset {
  border-color: transparent;
  background: transparent;
  color: #f4d79e;
}

.ambience-copy-status {
  margin: 0.25rem 0 0;
  color: #b8dec9;
}

.ambience-palette-options button:focus-visible,
.ambience-presets button:focus-visible,
.ambience-range:focus-visible {
  outline: 3px solid rgba(227, 182, 102, 0.42);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: no-preference) {
  .brand-panel[data-season="fall"] .vineyard-falling-leaf {
    animation: vineyard-leaf-drift 8s ease-in-out infinite alternate;
  }
}

@keyframes vineyard-leaf-drift {
  from {
    translate: 0 -2px;
  }
  to {
    translate: -9px 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ambience-celestial,
  .ambience-celestial-drag-target {
    cursor: default;
    pointer-events: none;
  }
}

@media (max-width: 1100px) {
  .ambience-lab {
    right: 1rem;
    left: auto;
    width: min(480px, calc(100vw - 2rem));
  }

  .ambience-palette-options {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 761px) and (max-height: 850px) {
  .login-ambience-page .auth-panel {
    height: 100vh;
    height: 100svh;
    min-height: 0;
    padding: 1.25rem clamp(2rem, 4vw, 4rem);
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  .login-ambience-page .auth-wrap {
    margin: auto 0;
  }

  .login-ambience-page .auth-wrap h2 {
    font-size: clamp(2.35rem, 6.2vh, 3.35rem);
  }

  .login-ambience-page .auth-intro {
    margin: 0.8rem 0 1.2rem;
    line-height: 1.5;
  }

  .login-ambience-page .field {
    margin-bottom: 0.9rem;
  }

  .login-ambience-page input:not(.ambience-range) {
    height: 48px;
  }

  .login-ambience-page .submit-button {
    min-height: 48px;
  }

  .login-ambience-page .registration-prompt {
    margin-top: 0.9rem;
  }

  .login-ambience-page .support-note {
    margin-top: 0.8rem;
    padding-block: 0.65rem;
  }

  .login-ambience-page .secure-note {
    margin-top: 0.9rem;
    padding-top: 0.75rem;
  }
}

@media (max-width: 760px) {
  .login-ambience-page {
    overflow: auto;
  }

  .login-ambience-page .auth-panel {
    background:
      linear-gradient(145deg, rgba(227, 182, 102, 0.1), transparent 34%),
      var(--avc-cream);
  }

  .login-ambience-page .auth-kicker,
  .login-ambience-page .inline-link,
  .login-ambience-page .support-note a {
    color: var(--avc-burgundy);
  }

  .login-ambience-page .auth-wrap h2 {
    color: var(--avc-ink);
  }

  .login-ambience-page .auth-intro {
    color: var(--avc-muted);
  }

  .login-ambience-page .support-note {
    color: #817872;
  }

  .login-ambience-page label {
    color: #3f3935;
  }

  .login-ambience-page .registration-prompt {
    color: var(--avc-muted);
  }

  .login-ambience-page .registration-prompt a {
    color: var(--avc-burgundy);
  }

  .login-ambience-page .secure-note {
    border-top-color: var(--avc-line);
    color: #817872;
  }

  .login-ambience-page .secure-note::before {
    background: var(--avc-success);
  }
}