:root {
  --bg: #07080a;
  --sidebar: #0b0c0f;
  --panel: #111318;
  --panel-2: #17191f;
  --chip: #1d2027;
  --text: #f5f5f6;
  --muted: #9fa3ad;
  --silver: #dfe1e5;
  --silver-dark: #858b96;
  --line: rgba(255,255,255,.11);
  --line-strong: rgba(255,255,255,.23);
  --good: #bcdcc6;
  --warn: #e6cca0;
  --bad: #e7aaa7;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 8% 0%, rgba(255,255,255,.07), transparent 30rem),
    var(--bg);
  color: var(--text);
  font-family: "DM Sans", sans-serif;
  line-height: 1.55;
}
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
button { color: inherit; }

.eyebrow, .section-label, .header-kicker {
  color: #c6c9d0;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.login-screen { min-height: 100vh; padding: 30px; }
.floating-logo, .sidebar-logo, .metal-logo {
  font-family: "Manrope", sans-serif;
  font-weight: 800;
  letter-spacing: -.07em;
  background: linear-gradient(110deg,#74777e,#fff 24%,#a7abb3 45%,#f7f7f7 65%,#737780);
  color: transparent;
  -webkit-background-clip: text;
  background-clip: text;
}
.floating-logo { font-size: 30px; }
.login-layout {
  width: min(1160px, 100%);
  margin: 70px auto 0;
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 54px;
  align-items: center;
}
.login-intro h1 {
  max-width: 720px;
  margin-top: 12px;
  font-family: "Manrope", sans-serif;
  font-size: clamp(52px, 7vw, 88px);
  line-height: .97;
  letter-spacing: -.067em;
}
.login-intro > p:not(.eyebrow) {
  max-width: 690px;
  margin-top: 23px;
  color: var(--muted);
  font-size: 19px;
}
.login-features { margin-top: 38px; display: grid; gap: 12px; }
.login-features > div {
  padding: 16px 18px;
  display: grid;
  grid-template-columns: 38px auto;
  column-gap: 12px;
  border: 1px solid var(--line);
  border-radius: 17px;
  background: rgba(255,255,255,.025);
}
.login-features > div > span {
  grid-row: 1 / 3;
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 11px;
  color: var(--silver);
  font-weight: 800;
}
.login-features strong { font-family: "Manrope", sans-serif; }
.login-features p { color: var(--muted); font-size: 13px; }

.login-card {
  padding: clamp(25px, 4vw, 39px);
  border: 1px solid var(--line);
  border-radius: 30px;
  background:
    linear-gradient(150deg, rgba(255,255,255,.075), rgba(255,255,255,.02)),
    #101116;
}
.metal-logo { font-size: 37px; }
.login-card h2 {
  margin-top: 24px;
  font-family: "Manrope", sans-serif;
  font-size: 30px;
  letter-spacing: -.04em;
}
.login-helper { margin-top: 9px; color: var(--muted); font-size: 14px; }
.login-card label {
  margin-top: 20px;
  display: block;
  color: #d7d9de;
  font-size: 13px;
  font-weight: 700;
}
.login-card input, .profile-form input {
  width: 100%;
  min-height: 49px;
  margin-top: 7px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 13px;
  outline: none;
  background: rgba(0,0,0,.28);
  color: var(--text);
}
.login-card input:focus, .profile-form input:focus { border-color: var(--line-strong); }
.primary-action, .secondary-action, .placement-link {
  min-height: 47px;
  padding: 0 19px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-weight: 800;
  cursor: pointer;
  transition: transform .16s ease, border-color .16s ease;
}
.primary-action:hover, .secondary-action:hover, .placement-link:hover { transform: translateY(-1px); }
.primary-action {
  border: 0;
  background: linear-gradient(135deg,#fafafa,#9ba0a9);
  color: #07080a;
}
.secondary-action, .placement-link {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.035);
  color: var(--text);
}
.login-card > .primary-action { width: 100%; margin-top: 23px; }
.form-error, .save-status { min-height: 20px; margin-top: 8px; color: var(--bad); font-size: 12px; }
.login-links { margin-top: 20px; display: flex; justify-content: space-between; gap: 12px; color: #d4d6db; font-size: 13px; }
.login-links a:hover { text-decoration: underline; }
.security-note {
  margin-top: 22px;
  padding-top: 17px;
  border-top: 1px solid var(--line);
  color: #737883;
  font-size: 11px;
}

.portal-app { min-height: 100vh; }
.sidebar {
  width: 260px;
  min-height: 100vh;
  padding: 22px 17px;
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 40;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line);
  background: var(--sidebar);
}
.sidebar-top { padding: 0 7px 20px; display: flex; align-items: center; justify-content: space-between; }
.sidebar-logo { font-size: 29px; }
.sidebar-close {
  display: none;
  width: 34px; height: 34px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  font-size: 21px;
}
.student-mini {
  padding: 13px;
  display: flex;
  gap: 11px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255,255,255,.025);
}
.avatar {
  width: 40px; height: 40px;
  flex: 0 0 auto;
  display: grid; place-items: center;
  border-radius: 13px;
  background: linear-gradient(145deg,#f7f7f7,#828792);
  color: #090a0d;
  font-family: "Manrope", sans-serif;
  font-weight: 800;
}
.student-mini strong, .student-mini span { display: block; }
.student-mini strong { font-size: 13px; }
.student-mini span { color: var(--muted); font-size: 11px; }

.portal-nav { margin-top: 20px; display: grid; gap: 4px; }
.nav-item {
  width: 100%;
  min-height: 43px;
  padding: 0 12px;
  display: flex;
  align-items: center;
  gap: 11px;
  border: 1px solid transparent;
  border-radius: 12px;
  background: transparent;
  color: var(--muted);
  text-align: left;
  font-weight: 700;
  cursor: pointer;
}
.nav-item:hover { color: var(--text); background: rgba(255,255,255,.035); }
.nav-item.active {
  border-color: var(--line);
  background: rgba(255,255,255,.075);
  color: var(--text);
}
.nav-icon {
  width: 22px;
  color: #d9dbe0;
  text-align: center;
  font-size: 16px;
}
.sidebar-bottom {
  margin-top: auto;
  padding: 16px 8px 0;
  display: grid;
  gap: 9px;
  border-top: 1px solid var(--line);
}
.sidebar-bottom a, .sidebar-bottom button {
  border: 0;
  background: transparent;
  color: var(--muted);
  text-align: left;
  font-size: 12px;
  cursor: pointer;
}
.sidebar-bottom a:hover, .sidebar-bottom button:hover { color: var(--text); }

.portal-main { min-height: 100vh; margin-left: 260px; }
.portal-header {
  min-height: 82px;
  padding: 15px clamp(22px,4vw,48px);
  position: sticky;
  top: 0;
  z-index: 25;
  display: flex;
  align-items: center;
  gap: 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(7,8,10,.9);
  backdrop-filter: blur(18px);
}
.portal-header h1 {
  margin-top: 1px;
  font-family: "Manrope", sans-serif;
  font-size: 25px;
  letter-spacing: -.035em;
}
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.placement-link { min-height: 42px; font-size: 13px; }
.profile-button {
  min-height: 44px;
  padding: 4px 10px 4px 5px;
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.03);
  cursor: pointer;
}
.avatar.small { width: 33px; height: 33px; border-radius: 50%; font-size: 13px; }
.profile-button > span:last-child { font-size: 13px; font-weight: 700; }
.menu-toggle {
  display: none;
  width: 39px; height: 39px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255,255,255,.035);
  cursor: pointer;
}
.content { padding: 38px clamp(22px,4vw,48px) 70px; }
.portal-section { display: none; }
.portal-section.active { display: block; }

.welcome-row, .row-intro {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}
.welcome-row h2, .section-intro h2 {
  margin-top: 5px;
  font-family: "Manrope", sans-serif;
  font-size: clamp(35px,5vw,54px);
  line-height: 1;
  letter-spacing: -.055em;
}
.welcome-row > div > p:not(.eyebrow), .section-intro > p:not(.eyebrow) {
  margin-top: 10px;
  color: var(--muted);
}
.date-chip {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
}

.metric-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr 1fr;
  gap: 12px;
}
.metric-card {
  min-height: 150px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  border: 1px solid var(--line);
  border-radius: 21px;
  background: var(--panel);
}
.metric-card.score-metric {
  background:
    radial-gradient(circle at top right,rgba(255,255,255,.09),transparent 15rem),
    var(--panel);
}
.metric-card > span { margin-bottom: auto; color: var(--muted); font-size: 12px; }
.metric-card strong {
  font-family: "Manrope", sans-serif;
  font-size: 38px;
  line-height: 1;
  letter-spacing: -.055em;
}
.metric-card .program-value { font-size: 23px; line-height: 1.1; }
.metric-card p { margin-top: 6px; color: var(--muted); font-size: 12px; }

.overview-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: 1.35fr .65fr;
  gap: 14px;
}
.overview-grid.lower { grid-template-columns: 1fr 1fr; }
.panel {
  padding: 23px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--panel);
}
.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.panel-heading h3 {
  margin-top: 3px;
  font-family: "Manrope", sans-serif;
  font-size: 21px;
  letter-spacing: -.03em;
}
.quiet-button {
  border: 0;
  background: transparent;
  color: #d5d7dc;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}
.quiet-button:hover { text-decoration: underline; }

.chart-area { min-height: 250px; margin-top: 18px; }
.chart-empty {
  min-height: 230px;
  display: grid;
  place-items: center;
  border: 1px dashed var(--line);
  border-radius: 16px;
  color: var(--muted);
  text-align: center;
}
.score-svg { width: 100%; height: 245px; overflow: visible; }
.score-svg text { fill: var(--muted); font-size: 10px; font-family: "DM Sans", sans-serif; }
.score-svg .grid-line { stroke: rgba(255,255,255,.09); }
.score-svg .score-line { fill: none; stroke: #e8e9ec; stroke-width: 3; }
.score-svg .score-point { fill: #f4f5f6; stroke: #101217; stroke-width: 3; }

.next-step-panel { position: relative; overflow: hidden; }
.next-step-panel:after {
  content:"";
  width: 180px; height: 180px;
  position: absolute; right: -70px; top: -80px;
  border: 1px solid var(--line);
  border-radius: 50%;
}
.next-step-icon {
  width: 50px; height: 50px;
  margin-top: 28px;
  display: grid; place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  font-size: 25px;
}
.next-step-panel h3 { margin-top: 22px; font-family: "Manrope", sans-serif; font-size: 25px; line-height: 1.1; letter-spacing: -.04em; }
.next-step-panel > p { margin-top: 9px; color: var(--muted); }
.inline-action { width: fit-content; margin-top: 21px; font-size: 13px; }

.empty-compact { min-height: 108px; display: flex; gap: 15px; align-items: center; }
.empty-symbol {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--silver);
}
.empty-symbol.large { width: 62px; height: 62px; margin: 0 auto 18px; border-radius: 20px; font-size: 22px; }
.empty-compact p, .message-preview p { color: var(--muted); font-size: 13px; }
.message-preview { min-height: 108px; display: flex; gap: 13px; align-items: flex-start; padding-top: 17px; }
.team-avatar {
  width: 40px; height: 40px;
  flex: 0 0 auto;
  display: grid; place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 13px;
  color: var(--silver);
  font-weight: 800;
}
.message-preview p { margin-top: 5px; }

.section-intro { max-width: 820px; margin-bottom: 28px; }
.row-intro { max-width: none; align-items: center; }
.module-empty, .empty-state {
  padding: clamp(34px,6vw,66px);
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    radial-gradient(circle at 80% 0,rgba(255,255,255,.075),transparent 25rem),
    var(--panel);
  text-align: center;
}
.module-empty { min-height: 480px; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.module-visual {
  width: 190px; height: 118px;
  margin-bottom: 25px;
  position: relative;
}
.module-visual span {
  width: 150px; height: 78px;
  position: absolute; left: 20px;
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  background: var(--panel-2);
}
.module-visual span:nth-child(1) { top: 0; opacity: .35; transform: scale(.86); }
.module-visual span:nth-child(2) { top: 14px; opacity: .6; transform: scale(.93); }
.module-visual span:nth-child(3) { top: 29px; }
.module-empty h3, .empty-state h3 {
  margin-top: 7px;
  font-family: "Manrope", sans-serif;
  font-size: 29px;
  letter-spacing: -.04em;
}
.module-empty > p:not(.eyebrow), .empty-state > p {
  max-width: 680px;
  margin-top: 10px;
  color: var(--muted);
}
.future-module-grid {
  width: min(650px,100%);
  margin-top: 30px;
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 10px;
}
.future-module-grid > div {
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: rgba(255,255,255,.025);
}
.future-module-grid strong, .future-module-grid span { display: block; }
.future-module-grid span { margin-top: 3px; color: var(--muted); font-size: 12px; }

.test-feature-card {
  padding: 26px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 22px;
  background:
    linear-gradient(145deg,rgba(255,255,255,.075),rgba(255,255,255,.02)),
    var(--panel);
}
.test-feature-card h3 { margin-top: 4px; font-family: "Manrope", sans-serif; font-size: 28px; letter-spacing: -.04em; }
.test-feature-card p { margin-top: 7px; color: var(--muted); }
.test-meta { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.test-meta span {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #d5d7dc;
  font-size: 11px;
}
.history-panel { margin-top: 14px; }
.history-empty { padding: 35px 0 14px; color: var(--muted); text-align: center; }
.history-list { margin-top: 15px; display: grid; gap: 9px; }
.history-row {
  padding: 14px;
  display: grid;
  grid-template-columns: 1.2fr .7fr .7fr .8fr;
  gap: 12px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255,255,255,.022);
}
.history-row strong, .history-row span { display: block; }
.history-row span { color: var(--muted); font-size: 11px; }
.history-score { font-family: "Manrope", sans-serif; font-size: 23px; }
.history-program { color: #d9dbe0; font-size: 12px; font-weight: 700; }

.mistake-list { display: grid; gap: 10px; }
.mistake-row {
  padding: 18px;
  display: grid;
  grid-template-columns: 44px 1fr auto;
  gap: 14px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 17px;
  background: var(--panel);
}
.mistake-index {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border-radius: 13px;
  background: rgba(231,170,167,.1);
  color: var(--bad);
  font-weight: 800;
}
.mistake-row p { color: var(--muted); font-size: 13px; }
.mistake-row > span { color: var(--muted); font-size: 12px; }

.empty-state { min-height: 370px; display: flex; flex-direction: column; justify-content: center; }
.empty-state .secondary-action { margin: 22px auto 0; }

.message-thread { max-width: 900px; display: grid; gap: 12px; }
.message-card {
  padding: 21px;
  display: flex;
  gap: 15px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
}
.message-top { display: flex; justify-content: space-between; gap: 14px; }
.message-top span { color: var(--muted); font-size: 12px; }
.message-card p { margin-top: 7px; color: var(--muted); }
#section-messages > .secondary-action { margin-top: 20px; }

.profile-form { max-width: 900px; }
.profile-avatar-row { display: flex; align-items: center; gap: 14px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.profile-avatar { width: 60px; height: 60px; border-radius: 19px; font-size: 22px; }
.profile-avatar-row h3 { font-family: "Manrope", sans-serif; font-size: 24px; letter-spacing: -.035em; }
.profile-avatar-row p { color: var(--muted); font-size: 13px; }
.form-grid { margin-top: 23px; display: grid; grid-template-columns: 1fr 1fr; gap: 17px; }
.profile-form label { color: #d5d7dc; font-size: 13px; font-weight: 700; }
.profile-form .primary-action { margin-top: 24px; }

.sidebar-overlay { display: none; }

@media (max-width: 1100px) {
  .metric-grid { grid-template-columns: 1fr 1fr; }
  .overview-grid { grid-template-columns: 1fr; }
}

@media (max-width: 850px) {
  .login-layout { grid-template-columns: 1fr; margin-top: 45px; }
  .sidebar {
    transform: translateX(-100%);
    transition: transform .22s ease;
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-close { display: block; }
  .portal-main { margin-left: 0; }
  .menu-toggle { display: block; }
  .sidebar-overlay {
    position: fixed; inset: 0;
    z-index: 35;
    background: rgba(0,0,0,.62);
  }
  .sidebar-overlay.active { display: block; }
}

@media (max-width: 620px) {
  .login-screen { padding: 18px; }
  .login-layout { margin-top: 35px; }
  .login-intro h1 { font-size: 50px; }
  .login-features { display: none; }
  .portal-header { padding: 12px; }
  .portal-header > div:nth-child(2) { min-width: 0; }
  .header-kicker { display: none; }
  .portal-header h1 { font-size: 19px; }
  .placement-link { display: none; }
  .profile-button > span:last-child { display: none; }
  .content { padding: 27px 12px 55px; }
  .welcome-row, .row-intro { align-items: flex-start; flex-direction: column; }
  .date-chip { display: none; }
  .metric-grid { grid-template-columns: 1fr; }
  .metric-card { min-height: 128px; }
  .overview-grid.lower { grid-template-columns: 1fr; }
  .future-module-grid { grid-template-columns: 1fr; }
  .test-feature-card { align-items: flex-start; flex-direction: column; }
  .test-meta { justify-content: flex-start; }
  .history-row { grid-template-columns: 1fr 1fr; }
  .mistake-row { grid-template-columns: 40px 1fr; }
  .mistake-row > span { grid-column: 2; }
  .form-grid { grid-template-columns: 1fr; }
}


.billing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.billing-plan-card h3,
.billing-grid .panel h3 {
  margin-top: 8px;
  font-family: "Manrope", sans-serif;
  font-size: 27px;
  letter-spacing: -.04em;
}

.billing-plan-card > p,
.billing-copy {
  margin-top: 10px;
  color: var(--muted);
}

.billing-link {
  width: fit-content;
  margin-top: 22px;
  font-size: 13px;
}

.payment-method-chips {
  margin: 20px 0 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.payment-method-chips span {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #daddE2;
  background: rgba(255,255,255,.03);
  font-size: 12px;
  font-weight: 700;
}

.billing-grid small {
  color: #757a84;
  font-size: 11px;
}

.receipts-panel {
  margin-top: 14px;
}

@media (max-width:760px) {
  .billing-grid {
    grid-template-columns: 1fr;
  }
}

.auth-tabs {
  margin: 22px 0 4px;
  padding: 4px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(0,0,0,.24);
}
.auth-tab {
  min-height: 39px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
  font-weight: 800;
  cursor: pointer;
}
.auth-tab.active {
  background: rgba(255,255,255,.09);
  color: var(--text);
}
.forgot-button {
  width: 100%;
  margin-top: 8px;
  border: 0;
  background: transparent;
  color: #d7d9de;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}
.forgot-button:hover { text-decoration: underline; }
.auth-success {
  min-height: 20px;
  margin-top: 8px;
  color: var(--good);
  font-size: 12px;
}


/* =========================================================
   SAT+ PREMIUM MICRO-INTERACTIONS
   Subtle 3D lift, cursor tilt, magnetic buttons, click press.
   ========================================================= */

.sat-interactive-surface{
  --sat-rx:0deg;
  --sat-ry:0deg;
  --sat-lift:0px;
  --sat-shine-x:50%;
  --sat-shine-y:50%;
  position:relative;
  transform:
    perspective(1100px)
    translate3d(0,var(--sat-lift),0)
    rotateX(var(--sat-rx))
    rotateY(var(--sat-ry));
  transform-style:preserve-3d;
  will-change:transform;
  transition:
    transform .24s cubic-bezier(.2,.8,.2,1),
    border-color .24s ease,
    background-color .24s ease,
    box-shadow .24s ease;
}

.sat-interactive-surface::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:3;
  border-radius:inherit;
  pointer-events:none;
  opacity:0;
  background:
    radial-gradient(
      circle at var(--sat-shine-x) var(--sat-shine-y),
      rgba(255,255,255,.105),
      rgba(255,255,255,.025) 22%,
      transparent 47%
    );
  transition:opacity .22s ease;
}

.sat-interactive-surface.sat-surface-active{
  border-color:rgba(255,255,255,.24) !important;
  box-shadow:
    0 17px 36px rgba(0,0,0,.20),
    inset 0 1px 0 rgba(255,255,255,.035);
}

.sat-interactive-surface.sat-surface-active::after{
  opacity:1;
}

.sat-interactive-surface.sat-surface-pressed{
  transition-duration:.08s;
  transform:
    perspective(1100px)
    translate3d(0,var(--sat-lift),0)
    rotateX(var(--sat-rx))
    rotateY(var(--sat-ry))
    scale(.992);
}

.sat-magnetic{
  --sat-mx:0px;
  --sat-my:0px;
  transform:translate3d(var(--sat-mx),var(--sat-my),0);
  will-change:transform;
  transition:
    transform .20s cubic-bezier(.2,.8,.2,1),
    border-color .18s ease,
    background-color .18s ease,
    opacity .18s ease;
}

.sat-magnetic:hover{
  transform:
    translate3d(var(--sat-mx),var(--sat-my),0)
    translateY(-1px);
}

.sat-magnetic.sat-button-pressed{
  transition-duration:.07s;
  transform:
    translate3d(var(--sat-mx),var(--sat-my),0)
    scale(.975);
}

.sat-pop-control{
  transition:
    transform .17s cubic-bezier(.2,.8,.2,1),
    background-color .17s ease,
    border-color .17s ease,
    color .17s ease !important;
}

.sat-pop-control:hover{
  transform:translateY(-2px) scale(1.012);
}

.sat-pop-control:active{
  transform:translateY(0) scale(.975);
}

/* Inputs also react, but they do not move while the user is typing. */
input:not([type="checkbox"]):not([type="radio"]):not([type="file"]),
select,
textarea{
  transition:
    border-color .18s ease,
    background-color .18s ease,
    box-shadow .18s ease !important;
}

input:not([type="checkbox"]):not([type="radio"]):not([type="file"]):hover,
select:hover,
textarea:hover{
  border-color:rgba(255,255,255,.23) !important;
}

input:not([type="checkbox"]):not([type="radio"]):not([type="file"]):focus,
select:focus,
textarea:focus{
  border-color:rgba(255,255,255,.34) !important;
  box-shadow:0 0 0 3px rgba(255,255,255,.045);
}

/* Touch devices get a simple press effect instead of cursor tilt. */
@media(hover:none),(pointer:coarse){
  .sat-interactive-surface{
    transform:none;
    will-change:auto;
  }

  .sat-interactive-surface:active{
    transform:scale(.992);
  }

  .sat-interactive-surface::after{
    display:none;
  }

  .sat-magnetic{
    transform:none;
    will-change:auto;
  }

  .sat-magnetic:active{
    transform:scale(.975);
  }
}

@media(prefers-reduced-motion:reduce){
  .sat-interactive-surface,
  .sat-magnetic,
  .sat-pop-control{
    transform:none !important;
    transition:
      border-color .18s ease,
      background-color .18s ease,
      color .18s ease !important;
  }

  .sat-interactive-surface::after{
    display:none;
  }
}