/* ═══════════════════════════════════════════════════════════
   LAYER 1 — FONT FACES
═══════════════════════════════════════════════════════════ */
@font-face {
  font-family: 'ACEH';
  src: url('./fonts/Aceh-Light.otf') format('opentype');
  font-weight: 300;
  font-display: swap;
}
@font-face {
  font-family: 'ACEH';
  src: url('./fonts/Aceh-Regular.otf') format('opentype');
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: 'ACEH';
  src: url('./fonts/Aceh-Medium.otf') format('opentype');
  font-weight: 500;
  font-display: swap;
}
@font-face {
  font-family: 'ACEH';
  src: url('./fonts/Aceh-SemiBold.otf') format('opentype');
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: 'ACEH';
  src: url('./fonts/Aceh-Bold.otf') format('opentype');
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: 'ACEH';
  src: url('./fonts/Aceh-Black.otf') format('opentype');
  font-weight: 900;
  font-display: swap;
}
@font-face {
  font-family: 'ACEH Soft';
  src: url('./fonts/AcehSoft-Black.otf') format('opentype');
  font-weight: 900;
  font-display: swap;
}
@font-face {
  font-family: 'Lakeside';
  src: url('./fonts/Lakeside-Regular.ttf') format('truetype');
  font-weight: 400;
  font-display: swap;
}

/* ═══════════════════════════════════════════════════════════
   LAYER 2 — DESIGN TOKENS
═══════════════════════════════════════════════════════════ */
:root {
  /* Colors */
  --c-bg:           #0a0a0a;
  --c-bg-card:      #111111;
  --c-bg-card-hover:#161616;
  --c-crema:        #ede8d0;
  --c-naranja:      #d4713a;
  --c-salmon:       #e8836a;
  --c-oliva:        #7a7c52;
  --c-azul:         #3a5a7c;

  /* Text */
  --t-primary:      #ede8d0;
  --t-secondary:    rgba(237, 232, 208, 0.62);
  --t-muted:        rgba(237, 232, 208, 0.35);

  /* Borders */
  --b-subtle:       rgba(237, 232, 208, 0.10);
  --b-mid:          rgba(237, 232, 208, 0.22);
  --b-accent:       rgba(212, 113, 58, 0.55);

  /* Fonts */
  --f-body:         'ACEH', system-ui, sans-serif;
  --f-display:      'Lakeside', Georgia, serif;
  --f-soft:         'ACEH Soft', 'ACEH', sans-serif;

  /* Layout */
  --max-w:          480px;
  --pad-h:          24px;
  --pad-v:          48px;
  --radius-card:    12px;
  --radius-btn:     8px;
  --radius-input:   8px;

  /* Motion */
  --ease-fast:      0.16s ease;
  --ease-mid:       0.32s ease;
  --ease-slow:      0.55s cubic-bezier(0.4, 0, 0.2, 1);

  /* Spotify */
  --c-spotify:      #1DB954;
  --c-spotify-dark: #158a3e;
}

/* ═══════════════════════════════════════════════════════════
   LAYER 3 — RESET + BASE
═══════════════════════════════════════════════════════════ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--c-bg);
  color: var(--t-primary);
  font-family: var(--f-body);
  font-weight: 400;
  line-height: 1.6;
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

blockquote {
  quotes: none;
}

/* ═══════════════════════════════════════════════════════════
   LAYER 4 — UTILITIES
═══════════════════════════════════════════════════════════ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ═══════════════════════════════════════════════════════════
   LAYER 5 — HERO
═══════════════════════════════════════════════════════════ */
.site-hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 64px var(--pad-h) 80px;
  overflow: hidden;
  background-color: var(--c-bg);
}

.hero-texture {
  position: absolute;
  inset: 0;
  background-image: url('./assets/textures/fondo-2.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
  mix-blend-mode: luminosity;
  pointer-events: none;
}

/* Gradient fade at bottom of hero */
.site-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 180px;
  background: linear-gradient(to bottom, transparent, var(--c-bg));
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 20px;
  max-width: var(--max-w);
  width: 100%;
}

.hero-logo {
  width: 140px;
  height: auto;
  filter: drop-shadow(0 0 24px rgba(212, 113, 58, 0.18));
}

.hero-ep-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.hero-ep-label {
  font-family: var(--f-body);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-naranja);
  opacity: 0.9;
}

.hero-ep-title {
  font-family: var(--f-body);
  font-weight: 900;
  font-size: clamp(2rem, 9vw, 3rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--t-primary);
}

.hero-concept {
  font-family: var(--f-display);
  font-size: clamp(1rem, 4vw, 1.25rem);
  color: var(--t-secondary);
  font-style: italic;
  letter-spacing: 0.01em;
}

.hero-event {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 4px;
}

.hero-date {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--t-primary);
  letter-spacing: 0.01em;
}

.hero-venue {
  font-size: 0.875rem;
  color: var(--t-secondary);
}

.hero-cta {
  display: inline-block;
  margin-top: 8px;
  padding: 14px 36px;
  background-color: var(--c-naranja);
  color: #0a0a0a;
  font-family: var(--f-body);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-btn);
  transition: background-color var(--ease-fast), transform var(--ease-fast);
}

.hero-cta:hover,
.hero-cta:focus-visible {
  background-color: var(--c-salmon);
  transform: translateY(-1px);
  outline: none;
}

.hero-cta:active {
  transform: translateY(0);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  color: var(--t-muted);
  animation: bounce 2.2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ═══════════════════════════════════════════════════════════
   LAYER 6 — PROGRESS INDICATOR
═══════════════════════════════════════════════════════════ */
.step-progress {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--b-subtle);
  padding: 14px var(--pad-h);
  display: none; /* shown by JS once flow starts */
}

.step-progress.visible {
  display: block;
}

.progress-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.progress-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  flex-shrink: 0;
}

.node-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--t-muted);
  border: 1.5px solid transparent;
  transition: background-color var(--ease-mid), border-color var(--ease-mid), transform var(--ease-mid);
}

.progress-node.active .node-dot {
  background-color: var(--c-naranja);
  border-color: var(--c-naranja);
  transform: scale(1.25);
}

.progress-node.done .node-dot {
  background-color: var(--c-oliva);
  border-color: var(--c-oliva);
}

.node-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--t-muted);
  transition: color var(--ease-mid);
  white-space: nowrap;
}

.progress-node.active .node-label {
  color: var(--c-naranja);
}

.progress-node.done .node-label {
  color: var(--c-oliva);
}

.progress-line {
  flex: 1;
  height: 1px;
  background-color: var(--b-subtle);
  margin: 0 8px;
  margin-bottom: 14px; /* align with dots */
  position: relative;
  overflow: hidden;
}

.progress-line::after {
  content: '';
  position: absolute;
  inset: 0;
  background-color: var(--c-oliva);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--ease-slow);
}

.progress-line.filled::after {
  transform: scaleX(1);
}

/* ═══════════════════════════════════════════════════════════
   LAYER 7 — FLOW CONTAINER + STEP TRANSITIONS
═══════════════════════════════════════════════════════════ */
.flow-container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--pad-v) var(--pad-h);
}

.flow-step {
  display: none;
  opacity: 0;
  transform: translateY(18px);
}

.flow-step.active {
  display: block;
}

.flow-step.entering {
  opacity: 1;
  transform: translateY(0);
  transition: opacity var(--ease-slow), transform var(--ease-slow);
}

/* ═══════════════════════════════════════════════════════════
   LAYER 8 — STEP HEADER
═══════════════════════════════════════════════════════════ */
.step-header {
  margin-bottom: 24px;
}

.step-title {
  font-family: var(--f-body);
  font-weight: 900;
  font-size: clamp(1.6rem, 7vw, 2rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--t-primary);
  margin-bottom: 10px;
}

.step-subtitle {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--t-secondary);
}

/* ═══════════════════════════════════════════════════════════
   LAYER 9 — FORM (STEP 1)
═══════════════════════════════════════════════════════════ */
.form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--t-secondary);
}

.field-input {
  width: 100%;
  padding: 14px 16px;
  background-color: var(--c-bg-card);
  border: 1px solid var(--b-subtle);
  border-radius: var(--radius-input);
  color: var(--t-primary);
  font-family: var(--f-body);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  outline: none;
  transition: border-color var(--ease-fast), background-color var(--ease-fast);
  -webkit-appearance: none;
  appearance: none;
}

.field-input::placeholder {
  color: var(--t-muted);
}

.field-input:focus {
  border-color: var(--b-accent);
  background-color: var(--c-bg-card-hover);
}

.field-input.has-error {
  border-color: #c94040;
}

.field-hint {
  font-size: 0.78rem;
  color: var(--t-muted);
  line-height: 1.5;
}

.field-error {
  font-size: 0.78rem;
  color: #e05858;
  min-height: 1rem;
  line-height: 1.4;
}

.form-disclaimer {
  font-size: 0.75rem;
  color: var(--t-muted);
  text-align: center;
  margin-top: 4px;
}

/* ═══════════════════════════════════════════════════════════
   LAYER 10 — BUTTONS
═══════════════════════════════════════════════════════════ */
.btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 16px 24px;
  background-color: var(--c-naranja);
  color: #0a0a0a;
  font-family: var(--f-body);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius-btn);
  border: none;
  cursor: pointer;
  transition: background-color var(--ease-fast), transform var(--ease-fast), opacity var(--ease-fast);
  min-height: 52px;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--c-salmon);
  transform: translateY(-1px);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-primary:disabled {
  opacity: 0.38;
  cursor: not-allowed;
}

.btn-primary:focus-visible {
  outline: 2px solid var(--c-naranja);
  outline-offset: 3px;
}

.btn-ghost {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 14px 24px;
  background-color: transparent;
  color: var(--t-primary);
  font-family: var(--f-body);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-btn);
  border: 1px solid var(--b-mid);
  cursor: pointer;
  transition: border-color var(--ease-fast), color var(--ease-fast), transform var(--ease-fast);
  min-height: 48px;
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--c-crema);
  color: var(--c-crema);
  transform: translateY(-1px);
  outline: none;
}

.btn-loading {
  font-size: 0.875rem;
  letter-spacing: 0.04em;
}

/* ═══════════════════════════════════════════════════════════
   LAYER 11 — LYRIC CARDS (STEP 2)
═══════════════════════════════════════════════════════════ */
.lyric-cards {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.lyric-card {
  padding: 14px 16px;
  background-color: var(--c-bg-card);
  border: 1px solid var(--b-subtle);
  border-radius: var(--radius-card);
  cursor: pointer;
  transition: border-color var(--ease-fast), background-color var(--ease-fast), transform var(--ease-fast);
  position: relative;
  overflow: hidden;
}

.lyric-card:hover {
  border-color: var(--b-accent);
  background-color: var(--c-bg-card-hover);
  transform: translateY(-2px);
}

.lyric-card:hover::before {
  opacity: 0.14;
}

.lyric-card.selected {
  border-color: var(--c-naranja);
  background-color: rgba(212, 113, 58, 0.07);
}

.lyric-card.selected::before {
  opacity: 0.18;
}

.lyric-card:focus-visible {
  outline: 2px solid var(--c-naranja);
  outline-offset: 2px;
}

.card-song {
  display: block;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-naranja);
  margin-bottom: 4px;
}

.feat {
  color: var(--t-muted);
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: none;
}

.card-lyric {
  font-family: var(--f-body);
  font-weight: 300;
  font-size: 0.88rem;
  line-height: 1.45;
  color: var(--t-primary);
  font-style: normal;
}

/* ═══════════════════════════════════════════════════════════
   LAYER 12 — SPOTIFY BLOCK (STEP 3)
═══════════════════════════════════════════════════════════ */
.spotify-block {
  background-color: var(--c-bg-card);
  border: 1px solid var(--b-subtle);
  border-radius: var(--radius-card);
  padding: 20px;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.spotify-artist {
  display: flex;
  align-items: center;
  gap: 14px;
}

.spotify-artist-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  background-color: rgba(212, 113, 58, 0.12);
  padding: 8px;
}

.spotify-artist-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.spotify-artist-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--t-primary);
}

.spotify-artist-label {
  font-size: 0.75rem;
  color: var(--t-muted);
  letter-spacing: 0.04em;
}

.btn-spotify {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 24px;
  background-color: var(--c-spotify);
  color: #000;
  font-family: var(--f-body);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  border-radius: var(--radius-btn);
  transition: background-color var(--ease-fast), transform var(--ease-fast);
  min-height: 48px;
}

.btn-spotify:hover,
.btn-spotify:focus-visible {
  background-color: #23d663;
  transform: translateY(-1px);
  outline: none;
}

.btn-spotify:active {
  transform: translateY(0);
}

.spotify-icon-svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════════
   LAYER 13 — CHECKBOX
═══════════════════════════════════════════════════════════ */
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  margin-bottom: 24px;
  padding: 14px 16px;
  background-color: var(--c-bg-card);
  border: 1px solid var(--b-subtle);
  border-radius: var(--radius-input);
  transition: border-color var(--ease-fast);
}

.checkbox-label:hover {
  border-color: var(--b-mid);
}

.checkbox-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.checkbox-custom {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  border: 1.5px solid var(--b-mid);
  background-color: transparent;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--ease-fast), background-color var(--ease-fast);
  position: relative;
}

.checkbox-input:checked + .checkbox-custom {
  background-color: var(--c-naranja);
  border-color: var(--c-naranja);
}

.checkbox-input:checked + .checkbox-custom::after {
  content: '';
  width: 6px;
  height: 10px;
  border-right: 2px solid #0a0a0a;
  border-bottom: 2px solid #0a0a0a;
  transform: rotate(45deg) translateY(-1px);
  display: block;
}

.checkbox-input:focus-visible + .checkbox-custom {
  outline: 2px solid var(--c-naranja);
  outline-offset: 2px;
}

.checkbox-text {
  font-size: 0.9rem;
  color: var(--t-secondary);
  line-height: 1.4;
}

/* ═══════════════════════════════════════════════════════════
   LAYER 14 — SUCCESS SCREEN
═══════════════════════════════════════════════════════════ */
.success-screen {
  text-align: center;
  padding-top: 16px;
}

.success-z-deco {
  margin: 0 auto 28px;
  width: 56px;
  opacity: 0.5;
}

.success-message {
  margin-bottom: 32px;
}

.success-body {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--t-primary);
  margin-bottom: 20px;
}

.success-signature {
  font-family: var(--f-display);
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--t-secondary);
  font-style: italic;
}

.success-signature em {
  color: var(--c-naranja);
}

.success-event {
  padding: 20px;
  background-color: var(--c-bg-card);
  border: 1px solid var(--b-subtle);
  border-radius: var(--radius-card);
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.success-event-date {
  font-weight: 700;
  font-size: 1rem;
  color: var(--t-primary);
}

.success-event-time {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--c-naranja);
  letter-spacing: -0.02em;
}

.success-event-venue {
  font-size: 0.875rem;
  color: var(--t-secondary);
}

/* ═══════════════════════════════════════════════════════════
   LAYER 15 — FOOTER
═══════════════════════════════════════════════════════════ */
.site-footer {
  padding: 32px var(--pad-h) 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--b-subtle);
}

.footer-logo {
  width: 72px;
  height: auto;
  opacity: 0.5;
}

.footer-copy {
  font-size: 0.72rem;
  color: var(--t-muted);
  letter-spacing: 0.06em;
}

.footer-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.footer-divider {
  font-size: 0.65rem;
  color: var(--t-muted);
  opacity: 0.5;
}

.footer-siente-logo {
  width: 64px;
  height: auto;
  opacity: 0.4;
}

/* ═══════════════════════════════════════════════════════════
   LAYER 16 — RESPONSIVE (desktop centering only)
═══════════════════════════════════════════════════════════ */
@media (min-width: 600px) {
  .site-hero {
    padding: 80px var(--pad-h) 100px;
  }

  .flow-container {
    padding: 56px var(--pad-h);
  }
}