/* ══════════════════════════════════════════
   SUBIR FOTOS – XV VANIA AZUL
   subir.css
══════════════════════════════════════════ */

:root {
  --blue-deep:    #060e1e;
  --blue-night:   #0a1628;
  --blue-mid:     #0d2a4a;
  --blue-royal:   #1a4a7a;
  --blue-sky:     #4a9eda;
  --blue-light:   #a8d8f0;
  --blue-pale:    #dff0fb;
  --silver:       #c8dce8;
  --cyan-glow:    #7dd4f0;
  --white-soft:   rgba(255,255,255,0.88);

  --font-display: 'Great Vibes', cursive;
  --font-serif:   'Cormorant Garamond', serif;
  --font-sans:    'Montserrat', sans-serif;

  --radius: 12px;
  --section-pad: 5rem 1.5rem;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--blue-deep);
  color: var(--blue-light);
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; }

/* ── Canvas brillitos ── */
#glitter {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

/* ── Botón música ── */
.music-btn {
  position: fixed;
  bottom: 1.6rem;
  right: 1.6rem;
  z-index: 100;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-royal), var(--blue-mid));
  border: 1.5px solid rgba(168,216,240,0.45);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(0,0,0,0.45), 0 0 18px rgba(91,184,232,0.25);
  transition: transform 0.2s, box-shadow 0.2s;
  user-select: none;
}
.music-btn:hover { transform: scale(1.1); }
.music-icon { font-size: 1.3rem; color: var(--blue-light); }
.music-btn.paused .music-icon { opacity: 0.45; }

/* ══════════════════════════════════════════
   HERO
══════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 50svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 4rem 1.5rem 3rem;
  z-index: 10;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(26,74,122,0.5) 0%, transparent 70%),
    linear-gradient(180deg, var(--blue-night) 0%, var(--blue-deep) 100%);
}

.hero-stars { position: absolute; inset: 0; pointer-events: none; z-index: 1; }
.hstar {
  position: absolute;
  color: var(--blue-light);
  font-size: 0.7rem;
  opacity: 0;
  animation: star-float linear infinite;
  text-shadow: 0 0 8px rgba(168,216,240,0.9);
}
.hstar.s1 { top: 15%; left: 8%;  animation-duration: 7s;  animation-delay: 0.5s; }
.hstar.s2 { top: 25%; right: 10%; animation-duration: 9s; animation-delay: 1.2s; }
.hstar.s3 { top: 55%; left: 6%;  animation-duration: 8s;  animation-delay: 0.8s; }
.hstar.s4 { top: 40%; right: 7%; font-size: 1.2rem; animation-duration: 11s; animation-delay: 2s; }
.hstar.s5 { top: 70%; left: 14%; animation-duration: 6s; animation-delay: 1.8s; }
.hstar.s6 { top: 60%; right: 4%; font-size: 1.5rem; animation-duration: 10s; animation-delay: 0.3s; }

@keyframes star-float {
  0%   { opacity: 0; transform: translateY(0) scale(0.8); }
  20%  { opacity: 0.9; }
  80%  { opacity: 0.6; }
  100% { opacity: 0; transform: translateY(-18px) scale(1.1); }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.hero-pre {
  font-size: 0.58rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(168,216,240,0.55);
  opacity: 0;
  animation: fade-up 1s ease forwards 0.3s;
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 15vw, 6rem);
  font-weight: 400;
  line-height: 1;
  color: #fff;
  text-shadow:
    0 0 40px rgba(125,212,240,0.7),
    0 0 80px rgba(125,212,240,0.3);
  opacity: 0;
  animation: fade-up 1.4s ease forwards 0.6s;
}

.hero-divider {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  width: 180px;
  margin: 0.3rem 0;
  opacity: 0;
  animation: fade-up 1s ease forwards 0.9s;
}
.divider-line {
  flex: 1; height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue-sky), transparent);
}
.divider-icon {
  color: var(--cyan-glow);
  font-size: 0.65rem;
  text-shadow: 0 0 10px rgba(125,212,240,0.9);
}

.hero-sub {
  font-family: var(--font-serif);
  font-size: clamp(0.9rem, 3.5vw, 1.2rem);
  font-style: italic;
  font-weight: 300;
  color: rgba(223,240,251,0.7);
  max-width: 320px;
  line-height: 1.6;
  opacity: 0;
  animation: fade-up 1s ease forwards 1.1s;
}

.hero-date {
  font-size: 0.58rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: rgba(168,216,240,0.5);
  opacity: 0;
  animation: fade-up 1s ease forwards 1.3s;
}

/* ══════════════════════════════════════════
   SECCIÓN BASE
══════════════════════════════════════════ */
.section {
  position: relative;
  z-index: 10;
  padding: var(--section-pad);
  display: flex;
  justify-content: center;
}

.section-inner {
  width: 100%;
  max-width: 560px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.6rem;
}

.section-badge {
  font-size: 1rem;
  color: var(--cyan-glow);
  text-shadow: 0 0 12px rgba(125,212,240,0.8);
  letter-spacing: 0.3em;
}

.section-title {
  font-family: 'Tangerine', cursive;
  font-size: clamp(3.5rem, 9vw, 5rem);
  font-weight: 400;
  color: var(--blue-pale);
  text-align: center;
  text-shadow: 0 0 30px rgba(125,212,240,0.4);
}

.section-sub {
  font-size: 0.62rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(168,216,240,0.55);
  text-align: center;
}

/* ══════════════════════════════════════════
   UPLOAD SECTION
══════════════════════════════════════════ */
.upload-section {
  background:
    radial-gradient(ellipse at 50% 0%, rgba(26,74,122,0.3) 0%, transparent 65%),
    linear-gradient(180deg, var(--blue-deep) 0%, var(--blue-night) 100%);
}

/* ── Tarjeta principal ── */
.upload-card {
  width: 100%;
  background: rgba(13,42,74,0.55);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(168,216,240,0.18);
  border-radius: var(--radius);
  padding: 2rem 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

/* ── Zona de drop ── */
.drop-zone {
  width: 100%;
  min-height: 160px;
  border: 1.5px dashed rgba(168,216,240,0.3);
  border-radius: 10px;
  background: rgba(6,14,30,0.4);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  cursor: pointer;
  transition: border-color 0.3s, background 0.3s;
  padding: 1.5rem;
  text-align: center;
}
.drop-zone:hover {
  border-color: rgba(125,212,240,0.6);
  background: rgba(26,74,122,0.2);
}
.drop-zone.dragging {
  border-color: var(--cyan-glow);
  background: rgba(26,74,122,0.35);
  box-shadow: 0 0 24px rgba(125,212,240,0.15);
}

.drop-icon { font-size: 2.5rem; }
.drop-title {
  font-family: var(--font-serif);
  font-size: clamp(0.95rem, 3vw, 1.1rem);
  font-weight: 300;
  color: var(--blue-pale);
}
.drop-hint {
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(168,216,240,0.35);
}

/* ── Preview grid ── */
.preview-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.preview-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(168,216,240,0.2);
  background: var(--blue-mid);
}
.preview-item img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.preview-item .remove-btn {
  position: absolute;
  top: 4px; right: 4px;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: rgba(6,14,30,0.85);
  border: 1px solid rgba(168,216,240,0.3);
  color: var(--blue-light);
  font-size: 0.6rem;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: background 0.2s;
}
.preview-item .remove-btn:hover { background: rgba(200,60,60,0.7); }

.preview-count {
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  color: var(--cyan-glow);
  text-align: center;
}

.change-btn {
  align-self: center;
  padding: 0.4rem 1.2rem;
  border-radius: 50px;
  border: 1px solid rgba(168,216,240,0.2);
  background: transparent;
  color: rgba(168,216,240,0.5);
  font-family: var(--font-sans);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}
.change-btn:hover {
  border-color: rgba(168,216,240,0.5);
  color: var(--blue-light);
}

/* ── Campos ── */
.field-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  position: relative;
}
.field-label {
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--blue-sky);
}
.field-optional {
  color: rgba(168,216,240,0.4);
  font-size: 0.55rem;
  margin-left: 0.4rem;
  text-transform: none;
}
.field-input {
  width: 100%;
  padding: 0.8rem 1rem;
  border-radius: 8px;
  border: 1px solid rgba(168,216,240,0.2);
  background: rgba(6,14,30,0.5);
  color: var(--blue-pale);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 300;
  outline: none;
  transition: border-color 0.25s, box-shadow 0.25s;
  -webkit-appearance: none;
}
.field-input::placeholder { color: rgba(168,216,240,0.25); }
.field-input:focus {
  border-color: rgba(125,212,240,0.6);
  box-shadow: 0 0 0 3px rgba(125,212,240,0.08);
}
.field-input.error { border-color: rgba(232,100,100,0.6); }

.field-textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border-radius: 8px;
  border: 1px solid rgba(168,216,240,0.2);
  background: rgba(6,14,30,0.5);
  color: var(--blue-pale);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 300;
  outline: none;
  resize: none;
  line-height: 1.6;
  transition: border-color 0.25s, box-shadow 0.25s;
  -webkit-appearance: none;
}
.field-textarea::placeholder { color: rgba(168,216,240,0.25); }
.field-textarea:focus {
  border-color: rgba(125,212,240,0.6);
  box-shadow: 0 0 0 3px rgba(125,212,240,0.08);
}
.field-char-count {
  font-size: 0.5rem;
  letter-spacing: 0.15em;
  color: rgba(168,216,240,0.3);
  text-align: right;
}
.field-error {
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  color: rgba(232,100,100,0.8);
  display: none;
}
.field-error.visible { display: block; }

/* ── Barra de progreso ── */
.progress-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.progress-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.progress-label span {
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(168,216,240,0.5);
}
#progressPct { color: var(--cyan-glow); }

.progress-bar {
  width: 100%;
  height: 4px;
  border-radius: 50px;
  background: rgba(168,216,240,0.1);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 0%;
  border-radius: 50px;
  background: linear-gradient(90deg, var(--blue-sky), var(--cyan-glow));
  box-shadow: 0 0 10px rgba(125,212,240,0.5);
  transition: width 0.3s ease;
}

/* ── Botón subir ── */
.upload-btn {
  width: 100%;
  padding: 1rem;
  border-radius: 50px;
  border: 1.5px solid rgba(168,216,240,0.4);
  background: linear-gradient(135deg,
    rgba(26,74,122,0.8) 0%,
    rgba(13,42,74,0.9) 100%
  );
  color: var(--blue-pale);
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  cursor: pointer;
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  transition: background 0.2s, border-color 0.2s, transform 0.15s, box-shadow 0.2s;
  position: relative;
  overflow: hidden;
}
.upload-btn::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(125,212,240,0.12) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
}
.upload-btn:hover::before { opacity: 1; }
.upload-btn:hover {
  border-color: var(--cyan-glow);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.35), 0 0 20px rgba(125,212,240,0.2);
}
.upload-btn:disabled { opacity: 0.5; cursor: default; transform: none; }

.btn-loader {
  display: none;
  animation: spin-star 1s linear infinite;
  font-size: 0.9rem;
  color: var(--cyan-glow);
}
.upload-btn.loading .btn-text { opacity: 0.4; }
.upload-btn.loading .btn-loader { display: inline-block; }

@keyframes spin-star {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* ── Éxito ── */
.upload-success {
  width: 100%;
  max-width: 420px;
  background: rgba(13,42,74,0.55);
  border: 1px solid rgba(168,216,240,0.18);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
  animation: fade-up 0.8s ease forwards;
}
.success-icon {
  font-size: 2.5rem;
  animation: pulse-glow 2s ease-in-out infinite;
}
@keyframes pulse-glow {
  0%,100% { filter: drop-shadow(0 0 8px rgba(125,212,240,0.6)); }
  50%     { filter: drop-shadow(0 0 20px rgba(125,212,240,1)); }
}
.success-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 8vw, 3rem);
  color: var(--blue-pale);
  text-shadow: 0 0 24px rgba(125,212,240,0.4);
}
.success-sub {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(0.85rem, 3vw, 1rem);
  color: rgba(168,216,240,0.65);
  line-height: 1.8;
}
.success-sub em { color: var(--cyan-glow); font-style: normal; }

.success-btns {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 0.4rem;
}

.restart-btn {
  padding: 0.65rem 1.5rem;
  border-radius: 50px;
  border: 1.5px solid rgba(168,216,240,0.3);
  background: rgba(26,74,122,0.4);
  color: var(--blue-light);
  font-family: var(--font-sans);
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s;
}
.restart-btn:hover {
  background: rgba(26,74,122,0.7);
  border-color: var(--cyan-glow);
  transform: translateY(-2px);
}

.gallery-btn {
  padding: 0.65rem 1.5rem;
  border-radius: 50px;
  border: 1.5px solid rgba(125,212,240,0.5);
  background: rgba(125,212,240,0.1);
  color: var(--cyan-glow);
  font-family: var(--font-sans);
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  transition: all 0.2s;
}
.gallery-btn:hover {
  background: rgba(125,212,240,0.2);
  border-color: var(--cyan-glow);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.3), 0 0 16px rgba(125,212,240,0.2);
}

/* ── Botón ver galería ── */
.gallery-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 2.5rem;
  border-radius: 50px;
  border: 1.5px solid rgba(125,212,240,0.4);
  background: rgba(125,212,240,0.08);
  color: var(--cyan-glow);
  font-family: var(--font-sans);
  font-size: 0.62rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  transition: all 0.2s;
  margin-top: 0.5rem;
}
.gallery-link:hover {
  background: rgba(125,212,240,0.15);
  border-color: var(--cyan-glow);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.3), 0 0 20px rgba(125,212,240,0.2);
}

/* ══════════════════════════════════════════
   FOOTER
══════════════════════════════════════════ */
.site-footer {
  position: relative;
  z-index: 10;
  padding: 3rem 1.5rem 2.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  background: linear-gradient(180deg, var(--blue-night) 0%, var(--blue-deep) 100%);
  border-top: 1px solid rgba(168,216,240,0.08);
}
.footer-name {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 7vw, 2.5rem);
  color: var(--blue-pale);
  text-shadow: 0 0 24px rgba(125,212,240,0.4);
}
.footer-xv {
  font-size: 0.58rem;
  letter-spacing: 0.3em;
  color: var(--cyan-glow);
  text-transform: uppercase;
}
.footer-date {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.95rem;
  color: rgba(168,216,240,0.45);
}

/* ══════════════════════════════════════════
   ANIMACIONES
══════════════════════════════════════════ */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ══════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════ */
@media (max-width: 480px) {
  :root { --section-pad: 3.5rem 1.2rem; }
  .upload-card { padding: 1.5rem 1.2rem; }
  .preview-grid { grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .music-btn { bottom: 1rem; right: 1rem; width: 42px; height: 42px; }
}