/* ==========================================================================
   ETLaban · public pages (landing + login). Builds on base.css.
   ========================================================================== */

/* --- Nav ----------------------------------------------------------------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: var(--nav-h);
  padding: 10px var(--gutter);
  padding-top: max(10px, env(safe-area-inset-top));
  padding-left: max(var(--gutter), env(safe-area-inset-left));
  padding-right: max(var(--gutter), env(safe-area-inset-right));
  border-bottom: 1px solid transparent;
  transition:
    background-color 0.3s ease,
    border-color 0.3s ease;
}

.nav.is-scrolled {
  border-bottom-color: var(--line);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  backdrop-filter: saturate(1.4) blur(14px);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* --- Landing ------------------------------------------------------------- */

.landing {
  flex: 1;
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--gutter);
  padding-left: max(var(--gutter), env(safe-area-inset-left));
  padding-right: max(var(--gutter), env(safe-area-inset-right));
}

.hero {
  display: grid;
  gap: 56px;
  padding: clamp(28px, 7vw, 88px) 0 clamp(64px, 10vw, 120px);
}

.hero-copy {
  display: grid;
  justify-items: start;
  gap: 22px;
}

.hero .display {
  font-size: clamp(3.1rem, 12.5vw, 5.4rem);
}

.hero .lede {
  max-width: 30ch;
}

.hero-cta {
  display: grid;
  justify-items: start;
  gap: 16px;
  margin-top: 8px;
}

.hero-note,
.auth-foot {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.84rem;
}

.hero-note svg,
.auth-foot svg {
  color: var(--faint);
}

/* Product glimpse: a small, living piece of the dashboard. */
.hero-visual {
  position: relative;
  display: grid;
  place-items: center;
  padding: 40px 0 64px;
  perspective: 1200px;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: -10% -20%;
  z-index: -1;
  background-image: radial-gradient(var(--dot) 1px, transparent 1.2px);
  background-size: 18px 18px;
  -webkit-mask-image: radial-gradient(closest-side, #000 30%, transparent);
  mask-image: radial-gradient(closest-side, #000 30%, transparent);
}

.preview {
  position: relative;
  width: min(100%, 360px);
  transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  transform-style: preserve-3d;
  transition: transform 0.8s var(--ease-out);
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--panel);
  box-shadow: var(--shadow-card);
}

.preview-main {
  padding: 22px 22px 18px;
}

.preview-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.preview-title {
  font-weight: 500;
  letter-spacing: -0.015em;
}

.preview-meta,
.float-meta {
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.ring {
  position: relative;
  display: grid;
  place-items: center;
  width: 148px;
  height: 148px;
  margin: 20px auto 22px;
}

.ring svg {
  position: absolute;
  inset: 0;
  transform: rotate(-90deg);
}

.ring-track {
  stroke: var(--panel-soft);
}

.ring-value {
  stroke: var(--brand);
  stroke-dasharray: 100px;
  stroke-dashoffset: 100px;
}

html:not(.is-checking) .ring-value {
  animation: ring-fill 1.8s var(--ease-out) forwards 0.7s;
}

@keyframes ring-fill {
  to {
    stroke-dashoffset: calc((100 - var(--value)) * 1px);
  }
}

@property --count {
  syntax: "<integer>";
  inherits: false;
  initial-value: 0;
}

.ring-label {
  display: grid;
  justify-items: center;
  gap: 2px;
}

.ring-number {
  --count: 0;
  counter-reset: count var(--count);
  font-family: var(--font-serif);
  font-size: 2.9rem;
  line-height: 1;
  letter-spacing: -0.02em;
}

.ring-number::after {
  content: counter(count) "%";
}

html:not(.is-checking) .ring-number {
  animation: count 1.8s var(--ease-out) forwards 0.7s;
}

@keyframes count {
  to {
    --count: var(--target);
  }
}

.ring-caption {
  color: var(--muted);
  font-size: 0.74rem;
}

.subject-list {
  display: grid;
  gap: 13px;
  margin: 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.subject {
  display: grid;
  grid-template-columns: 1fr 72px 26px;
  align-items: center;
  gap: 12px;
  font-size: 0.82rem;
}

.subject-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.subject-value {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  text-align: right;
}

.bar {
  height: 4px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--panel-soft);
}

.bar i {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--text);
  transform: scaleX(0);
  transform-origin: left;
}

html:not(.is-checking) .bar i {
  animation: bar 1.4s var(--ease-out) forwards;
  animation-delay: calc(var(--i) * 110ms + 0.9s);
}

@keyframes bar {
  to {
    transform: scaleX(var(--v));
  }
}

.subject.is-low .bar i {
  background: var(--brand);
}

.subject.is-low .subject-value {
  color: var(--brand);
}

/* Floating chips around the main card. */
.float {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px 12px 12px;
  border-radius: 16px;
  transform: translateZ(40px);
}

.float-inner {
  display: grid;
  gap: 1px;
}

.float-title {
  font-size: 0.84rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.float-icon {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--panel-soft);
  color: var(--text);
}

.float-score {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  line-height: 1;
}

.float-score small {
  color: var(--faint);
  font-family: var(--font-sans);
  font-size: 0.7rem;
}

.float-a {
  top: -26px;
  right: -28px;
  --float-delay: 0s;
}

.float-b {
  bottom: -50px;
  left: -32px;
  --float-delay: -3s;
}

html:not(.is-checking) .float {
  animation:
    pop 0.9s var(--ease-spring) both,
    drift 7s ease-in-out infinite;
  animation-delay: calc(var(--d) * 80ms + 200ms), var(--float-delay);
}

@keyframes pop {
  from {
    opacity: 0;
    scale: 0.85;
    filter: blur(6px);
  }
  to {
    opacity: 1;
    scale: 1;
    filter: blur(0);
  }
}

@keyframes drift {
  0%,
  100% {
    translate: 0 0;
  }
  50% {
    translate: 0 -8px;
  }
}

/* Features: an editorial index, not a grid of boxes. */
.features {
  padding-bottom: clamp(64px, 10vw, 120px);
}

.section-label {
  align-self: start;
  margin-bottom: 20px;
}

.feature-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.feature {
  position: relative;
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 4px 16px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
  isolation: isolate;
}

.feature::before {
  content: "";
  position: absolute;
  inset: 0 calc(var(--gutter) * -0.5);
  z-index: -1;
  border-radius: var(--radius);
  background: var(--panel);
  opacity: 0;
  transform: scaleY(0.85);
  transition:
    opacity 0.35s ease,
    transform 0.5s var(--ease-out);
}

.feature-index {
  padding-top: 0.55em;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  transition: color 0.3s ease;
}

.feature h3 {
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 6vw, 2.5rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  transition: transform 0.5s var(--ease-out);
}

.feature p {
  grid-column: 2;
  max-width: 44ch;
  color: var(--muted);
  transition: transform 0.5s var(--ease-out);
}

@media (hover: hover) {
  .feature:hover::before {
    opacity: 1;
    transform: none;
  }

  .feature:hover .feature-index {
    color: var(--brand);
  }

  .feature:hover h3,
  .feature:hover p {
    transform: translateX(6px);
  }
}

/* FAQ: hairline rows that open in place. Mirrors the questions in the JSON-LD. */
.faq {
  padding-bottom: clamp(64px, 10vw, 120px);
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 44px;
  padding: 18px 0;
  font-size: 1.04rem;
  font-weight: 500;
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  flex: none;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 1.1rem;
  transition:
    transform 0.35s var(--ease-out),
    color 0.3s ease;
}

.faq-item[open] summary::after {
  color: var(--brand);
  transform: rotate(45deg);
}

.faq-item p {
  max-width: 60ch;
  padding-bottom: 22px;
  color: var(--muted);
  line-height: 1.6;
}

.faq-item a {
  color: var(--text);
  text-underline-offset: 3px;
}

@media (hover: hover) {
  .faq-item summary:hover::after {
    color: var(--brand);
  }
}

/* Privacy + closing call to action. */
.closing {
  display: grid;
  gap: 22px;
  justify-items: start;
  padding-bottom: clamp(64px, 10vw, 112px);
}

.closing .display {
  font-size: clamp(2.5rem, 9vw, 3.8rem);
}

.closing .lede {
  max-width: 46ch;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  font-weight: 500;
  text-decoration: none;
  background: linear-gradient(currentColor, currentColor) no-repeat left calc(100% - 10px) / 0 1px;
  transition: background-size 0.45s var(--ease-out);
}

@media (hover: hover) {
  .text-link:hover {
    background-size: calc(100% - 26px) 1px;
  }

  .text-link:hover .btn-arrow {
    transform: translateX(4px);
  }
}

.footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 20px;
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px var(--gutter);
  padding-bottom: max(24px, env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 0.8rem;
}

.footer-link {
  gap: 8px;
  color: var(--muted);
}

/* --- Login --------------------------------------------------------------- */

.auth {
  position: relative;
  flex: 1;
  display: grid;
  justify-items: center;
  align-items: start;
  padding: clamp(28px, 7vh, 72px) var(--gutter) 48px;
  padding-bottom: max(48px, env(safe-area-inset-bottom));
}

.auth::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: radial-gradient(var(--dot) 1px, transparent 1.2px);
  background-size: 18px 18px;
  -webkit-mask-image: radial-gradient(ellipse 60% 55% at 50% 40%, #000, transparent);
  mask-image: radial-gradient(ellipse 60% 55% at 50% 40%, #000, transparent);
}

.auth-panel {
  display: grid;
  gap: 28px;
  width: 100%;
  max-width: 400px;
}

.auth-head {
  display: grid;
  gap: 12px;
}

.auth-head .display {
  font-size: clamp(2.9rem, 11vw, 3.6rem);
}

.auth-head .lede {
  font-size: 1rem;
}

.notice {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid color-mix(in srgb, var(--brand) 25%, transparent);
  border-radius: var(--radius);
  background: var(--brand-soft);
  font-size: 0.88rem;
  line-height: 1.45;
}

.notice[hidden] {
  display: none;
}

.notice svg {
  margin-top: 1px;
  color: var(--brand);
}

.auth-form {
  display: grid;
  gap: 18px;
}

.remember-field {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
}

.remember-field input {
  flex: none;
  width: 18px;
  height: 18px;
  margin: 1px 0 0;
  accent-color: var(--ink);
  cursor: pointer;
}

.remember-field input:disabled,
.remember-field input:disabled + span {
  cursor: default;
  opacity: 0.6;
}

.remember-hint {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 400;
  line-height: 1.45;
}

.caps-hint {
  color: var(--brand);
  font-size: 0.76rem;
  font-weight: 500;
  opacity: 0;
  transform: translateY(3px);
  transition:
    opacity 0.2s ease,
    transform 0.3s var(--ease-out);
}

.caps-hint.is-on {
  opacity: 1;
  transform: none;
}

.input-action {
  position: absolute;
  top: 5px;
  right: 5px;
}

.input-action .icon-eye-off {
  display: none;
}

.input-action[aria-pressed="true"] .icon-eye {
  display: none;
}

.input-action[aria-pressed="true"] .icon-eye-off {
  display: block;
}

.form-error {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--danger);
  font-size: 0.88rem;
  font-weight: 500;
  line-height: 1.45;
  animation: rise 0.4s var(--ease-out);
}

.form-error svg {
  margin-top: 2px;
}

.form-error[hidden] {
  display: none;
}

.auth-form .btn {
  margin-top: 6px;
}

/* Submit button states: idle -> loading -> done */
.btn-state {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition:
    opacity 0.25s ease,
    transform 0.35s var(--ease-out);
}

.btn-state-busy,
.btn-state-done {
  position: absolute;
  inset: 0;
  justify-content: center;
  opacity: 0;
  transform: translateY(8px);
}

.btn[data-state="busy"] .btn-state-idle,
.btn[data-state="done"] .btn-state-idle,
.btn[data-state="done"] .btn-state-busy {
  opacity: 0;
  transform: translateY(-8px);
}

.btn[data-state="busy"] .btn-state-busy,
.btn[data-state="done"] .btn-state-done {
  opacity: 1;
  transform: none;
}

.btn[data-state="busy"],
.btn[data-state="done"] {
  cursor: progress;
}

.spinner {
  width: 16px;
  height: 16px;
  border: 1.5px solid color-mix(in srgb, var(--on-ink) 30%, transparent);
  border-top-color: var(--on-ink);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.check path {
  stroke-dasharray: 24;
  stroke-dashoffset: 24;
}

.btn[data-state="done"] .check path {
  animation: draw 0.5s var(--ease-out) forwards 0.1s;
}

@keyframes draw {
  to {
    stroke-dashoffset: 0;
  }
}

.shake {
  animation: shake 0.45s var(--ease-out);
}

@keyframes shake {
  0%,
  100% {
    transform: none;
  }
  20% {
    transform: translateX(-7px);
  }
  40% {
    transform: translateX(6px);
  }
  60% {
    transform: translateX(-4px);
  }
  80% {
    transform: translateX(2px);
  }
}

.auth-foot {
  justify-content: center;
  width: 100%;
  text-align: center;
}

/* --- Layout breakpoints -------------------------------------------------- */

@media (max-width: 479px) {
  .hero-cta,
  .hero-cta .btn {
    width: 100%;
  }

  .hero-cta {
    justify-items: center;
  }

  .float-a {
    right: -8px;
  }

  .float-b {
    left: -6px;
  }
}

@media (min-width: 900px) {
  .hero {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 40px;
    min-height: calc(100vh - var(--nav-h) - 40px);
    min-height: calc(100svh - var(--nav-h) - 40px);
    padding-top: 24px;
  }

  .hero .lede {
    max-width: 34ch;
    font-size: 1.14rem;
  }

  .hero-visual {
    justify-items: end;
  }

  .features {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
  }

  .section-label {
    padding-top: 30px;
  }

  .faq {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
  }

  .faq .section-label {
    padding-top: 18px;
  }

  .feature {
    grid-template-columns: 64px 0.8fr 1.2fr;
    align-items: baseline;
    padding: 34px 0;
  }

  .feature p {
    grid-column: 3;
  }

  .closing {
    grid-template-columns: 1fr 2fr;
    align-items: end;
    column-gap: 40px;
  }

  .closing > * {
    grid-column: 2;
  }
}

@media (min-width: 900px) and (min-height: 720px) {
  .auth {
    align-items: center;
  }

  .auth-panel {
    margin-bottom: 8vh;
  }
}