/* ============================================
   PAPERBOY — Main Layout
   Apple-inspired · Minimalist · White
   ============================================ */

.page {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--clr-bg);
}

.section--full {
  width: 100%;
  max-width: 100%;
}

/* ══════════════════════════════════════════
   HERO — full viewport, centered
   ══════════════════════════════════════════ */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 100vh;
  padding: 140px var(--content-padding);
  animation: fadeSlideUp 0.8s var(--ease-spring) forwards;
  box-sizing: border-box;
}

.hero__logo {
  width: clamp(200px, 30vw, 320px);
  height: auto;
  margin-bottom: var(--sp-4xl);
}

.hero__tagline {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: var(--fw-semibold);
  color: var(--clr-text);
  margin-bottom: var(--sp-md);
  letter-spacing: -0.03em;
  line-height: var(--lh-tight);
}

.hero__subtitle {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  color: var(--clr-text-secondary);
  max-width: 460px;
  line-height: var(--lh-relaxed);
  font-weight: var(--fw-regular);
  margin-bottom: var(--sp-4xl);
}

.hero__scroll-hint {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-xs);
  color: var(--clr-text-muted);
  animation: var(--clr-text-muted);
  animation: scrollHintPulse 2.4s var(--ease-smooth) infinite;
  width: 100%;
  margin-left: 20px;
  transform: translateX(0px);
}

.hero__scroll-label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero__scroll-arrow {
  opacity: 0.5;
}

@keyframes scrollHintPulse {

  0%,
  100% {
    opacity: 0.35;
    transform: translateY(0);
  }

  50% {
    opacity: 1;
    transform: translateY(4px);
  }
}

/* ══════════════════════════════════════════
   STEP SECTIONS
   "STEP N" label + title always visible.
   Body collapses/expands on scroll.
   ══════════════════════════════════════════ */
/* ── Collapsible body (grid-row technique) ──
   Avoids max-height choppy animation.
   0fr→1fr gives smooth, content-aware height
   with no layout jumps.                       */
.step {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: var(--sp-4xl) var(--content-padding) 0;
  text-align: center;
  display: grid;
  grid-template-rows: auto 0fr;
  transition: grid-template-rows 0.55s var(--ease-spring);
  justify-items: center;
}


.step.in-view {
  grid-template-rows: auto 1fr;
}

.step__header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-sm);
  margin-bottom: var(--sp-lg);
  overflow: visible;
}

.step__number {
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  color: var(--clr-primary);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.step__title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: var(--fw-semibold);
  color: var(--clr-text);
  letter-spacing: -0.02em;
  line-height: var(--lh-tight);
}

.step__body {
  overflow: hidden;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.45s var(--ease-smooth), transform 0.45s var(--ease-smooth);
  transition-delay: 0s;
  pointer-events: none;
  min-height: 0;
}

.step.in-view .step__body {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  transition-delay: 0.12s;
}

.step__description {
  font-size: clamp(0.9rem, 1.3vw, 1rem);
  color: var(--clr-text-secondary);
  line-height: var(--lh-relaxed);
  font-weight: var(--fw-regular);
  max-width: 460px;
  margin: 0 auto var(--sp-xl);
}

.step__hint {
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  font-weight: var(--fw-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--sp-lg);
}

.step__counter {
  margin-bottom: var(--sp-md);
}

/* ══════════════════════════════════════════
   STEP 1 — GALLERY (always visible)
   ══════════════════════════════════════════ */
.step#gallery {
  grid-template-rows: auto 1fr;
  justify-items: center;
  max-width: 100%;
  padding-left: 0;
  padding-right: 0;
}

.step#gallery .step__body {
  opacity: 1;
  transform: none;
  pointer-events: auto;
  transition-delay: 0s;
  overflow: visible;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  justify-content: center;
  text-align: center;
}

/* ══════════════════════════════════════════
   STEP 2 — KEYWORD INPUT
   ══════════════════════════════════════════ */
.step#keywordSection .step__body,
.step#emailSection .step__body {
  width: 100%;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* ══════════════════════════════════════════
   STEP 3 — REVIEW
   ══════════════════════════════════════════ */
.pills-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-sm);
  min-height: 36px;
}

.pills-container:empty::before {
  content: "Select topics from the gallery above";
  color: var(--clr-text-muted);
  font-size: var(--fs-small);
  font-style: italic;
}

/* ══════════════════════════════════════════
   STEP 4 — EMAIL
   ══════════════════════════════════════════ */
.step#emailSection .step__body {
  max-width: 420px;
  margin-left: auto;
  margin-right: auto;
}

.email-form {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-md);
}

.email-form__input-group {
  width: 100%;
}

.email-form .btn {
  width: 100%;
  max-width: 280px;
  padding: 0.8rem 2rem;
  font-size: var(--fs-small);
  border-radius: var(--radius-md);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ══════════════════════════════════════════
   SPONSOR / FOOTER
   ══════════════════════════════════════════ */
.sponsor-banner {
  width: 100%;
  padding: var(--sp-4xl) var(--content-padding);
  margin-top: var(--sp-4xl);
  text-align: center;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  background: linear-gradient(180deg, rgba(59, 89, 152, 0.02) 0%, rgba(59, 89, 152, 0.04) 100%);
}

.sponsor-banner__label {
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  font-weight: var(--fw-medium);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--sp-xl);
}

.sponsor-banner__logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-3xl);
  flex-wrap: wrap;
}

.sponsor-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-sm);
  opacity: 0.5;
  transition: opacity var(--dur-normal) var(--ease-smooth), transform var(--dur-normal) var(--ease-smooth);
}

.sponsor-logo:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

.sponsor-logo--large {
  gap: var(--sp-md);
}

.sponsor-banner__logos img {
  filter: grayscale(1) opacity(0.6);
  transition: filter 0.4s var(--ease-smooth), opacity 0.4s var(--ease-smooth);
}

.sponsor-banner__logos img:hover {
  filter: grayscale(0) opacity(1);
}

.sponsor-logo__img--nvidia {
  height: 60px;
}

.sponsor-logo__img--claude {
  height: 65px;
}

.sponsor-logo__text {
  font-size: var(--fs-small);
  color: var(--clr-text-secondary);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.sponsor-banner__trust {
  margin-top: var(--sp-lg);
  font-size: var(--fs-small);
  color: var(--clr-text-muted);
  font-weight: var(--fw-medium);
  letter-spacing: 0.02em;
}

.sponsor-banner__footer {
  margin-top: var(--sp-xl);
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
}

/* ══════════════════════════════════════════
   SCROLLBAR STYLING
   ══════════════════════════════════════════ */
::-webkit-scrollbar {
  width: 16px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.15);
  border-radius: 10px;
  border: 4px solid var(--clr-bg);
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.25);
}

/* ══════════════════════════════════════════
   KEYFRAMES
   ══════════════════════════════════════════ */
@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ══════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════ */
@media (max-width: 767px) {
  .hero {
    padding-top: var(--sp-3xl);
  }

  .hero__logo {
    width: 100px;
  }

  .sponsor-banner__logos {
    gap: var(--sp-xl);
  }

  .email-form .btn {
    max-width: 100%;
  }
}

/* ══════════════════════════════════════════
   DONATION FAB
   ══════════════════════════════════════════ */
.donation-fab {
  position: fixed;
  bottom: var(--sp-xl);
  right: var(--sp-xl);
  z-index: 1000;
  padding: 0.8rem 1.5rem;
  background: var(--clr-primary);
  color: white;
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: var(--fs-small);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
  transition: transform var(--dur-normal) var(--ease-smooth), box-shadow var(--dur-normal) var(--ease-smooth);
}

.donation-fab:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  color: white;
}

/* ── Beta Banner (above FAB) ─────────────── */
.beta-banner {
  position: fixed;
  bottom: calc(var(--sp-xl) + 3.7rem);
  right: var(--sp-xl);
  z-index: 999;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 0.95rem;
  background: #ffffff;
  color: var(--clr-text);
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-full);
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.18);
  white-space: nowrap;
}

.beta-banner__dot {
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--clr-primary);
  box-shadow: 0 0 0 4px rgba(13, 110, 253, 0.18);
  animation: betaPulse 2s var(--ease-smooth) infinite;
}

.beta-banner__label {
  color: var(--clr-primary);
}

.beta-banner__text {
  text-transform: none;
  letter-spacing: 0;
  font-weight: var(--fw-regular);
  color: var(--clr-text-secondary);
}

@keyframes betaPulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(13, 110, 253, 0.45);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(13, 110, 253, 0);
  }
}

@media (max-width: 480px) {
  .beta-banner {
    bottom: calc(var(--sp-xl) + 3.9rem);
    font-size: 0.62rem;
    padding: 0.45rem 0.75rem;
    gap: 0.4rem;
    max-width: 60vw;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}

/* ── Capacity banner (shown only on 503 from POST /api/subscribe) ─ */

// Inline tri-state — sits where the submit button used to live.
.capacity-banner {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 1rem;
  margin: 1.5rem 0 0;
  padding: 1.25rem 1.4rem;
  background: linear-gradient(180deg, #fff8ef 0%, #fff3e3 100%);
  border: 1px solid #f1c895;
  border-radius: 14px;
  box-shadow: 0 6px 22px rgba(193, 110, 25, 0.08);
}

.capacity-banner__icon {
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #c16e1a;
  position: relative;
  margin-top: 2px;
}
.capacity-banner__icon::after {
  content: "";
  position: absolute;
  left: 13px;
  top: 7px;
  width: 2px;
  height: 12px;
  background: #fff;
  border-radius: 1px;
}
.capacity-banner__icon::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 22px;
  width: 2px;
  height: 2px;
  background: #fff;
  border-radius: 50%;
}

.capacity-banner__body {
  flex: 1;
}
.capacity-banner__title {
  margin: 0 0 4px;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #8a4a14;
}
.capacity-banner__message {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
  color: #4a2c10;
}
.capacity-banner__link {
  color: #8a4a14;
  text-decoration: underline;
  text-underline-offset: 2px;
}

@media (max-width: 480px) {
  .capacity-banner {
    padding: 1rem 1.05rem;
  }
  .capacity-banner__title { font-size: 12px; }
  .capacity-banner__message { font-size: 12px; }
}

/* ── Donation Modal ──────────────────────── */
.donation-modal {
  position: fixed;
  inset: 0;
  z-index: 1100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-lg);
}

.donation-modal[hidden] {
  display: none;
}

.donation-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(13, 17, 23, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  animation: modalFadeIn 0.25s var(--ease-smooth) both;
}

.donation-modal__card {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: #ffffff;
  border-radius: 18px;
  padding: 2.25rem 2rem 1.75rem;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
  text-align: center;
  animation: modalPop 0.32s var(--ease-spring) both;
}

.donation-modal__close {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--clr-text-secondary);
  cursor: pointer;
  border-radius: 50%;
  transition: background 0.2s var(--ease-smooth), color 0.2s var(--ease-smooth);
}

.donation-modal__close::before,
.donation-modal__close::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 1.5px;
  background: currentColor;
  border-radius: 1px;
}

.donation-modal__close::before { transform: rotate(45deg); }
.donation-modal__close::after  { transform: rotate(-45deg); }

.donation-modal__close:hover {
  background: rgba(0, 0, 0, 0.05);
  color: var(--clr-text);
}

.donation-modal__title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: var(--fw-semibold);
  color: var(--clr-text);
  margin: 0 0 0.85rem 0;
  letter-spacing: -0.01em;
}

.donation-modal__desc {
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--clr-text-secondary);
  margin: 0 0 0.5rem 0;
}

.donation-modal__note {
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--clr-text-muted);
  margin: 0 0 1.5rem 0;
}

.donation-modal__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 110px;
  padding: 0.7rem 1.5rem;
  background: var(--clr-primary);
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: transform 0.2s var(--ease-smooth), box-shadow 0.2s var(--ease-smooth);
}

.donation-modal__btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(13, 110, 253, 0.28);
}

.donation-modal__btn:focus-visible,
.donation-modal__close:focus-visible {
  outline: 2px solid var(--clr-primary);
  outline-offset: 2px;
}

@keyframes modalFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes modalPop {
  0%   { opacity: 0; transform: translateY(8px) scale(0.96); }
  100% { opacity: 1; transform: translateY(0)    scale(1); }
}

@media (max-width: 480px) {
  .donation-modal__card {
    padding: 1.75rem 1.4rem 1.25rem;
  }
  .donation-modal__title { font-size: 1.15rem; }
}