@import url('https://fonts.googleapis.com/css2?family=Domine:wght@400;500;600;700&family=Quicksand:wght@400;500;600;700&display=swap');

:root {
  --rosa-claro: #FFB6C1;
  --rosa-pastel: #FFC0CB;
  --fucsia: #FF69B4;
  --lila: #DDA0DD;
  --celeste: #B0E0E6;
  --crema: #FFFDD0;
  --blanco: #FFFFFF;
  --texto: #5A4A5A;
  --texto-claro: #8A7A8A;
  --sombra: rgba(255, 105, 180, 0.15);
  --sombra-fuerte: rgba(255, 105, 180, 0.3);
  --radio: 16px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow: hidden;
}

body {
  font-family: 'Quicksand', sans-serif;
  background: linear-gradient(135deg, #FFF0F5 0%, #FFE4E1 25%, #FFF0F5 50%, #E6E6FA 75%, #FFF0F5 100%);
  background-attachment: fixed;
  color: var(--texto);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(255, 182, 193, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(221, 160, 221, 0.2) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(176, 224, 230, 0.15) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
}

h1, h2, h3 {
  font-family: 'Domine', serif;
  color: var(--fucsia);
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  text-align: center;
  padding: 40px 20px 30px;
  position: relative;
}

header h1 {
  font-size: 2.8rem;
  background: linear-gradient(135deg, var(--fucsia), var(--lila));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
  text-shadow: none;
}

header p {
  font-size: 1.1rem;
  color: var(--texto-claro);
  font-weight: 500;
}

.header-deco {
  position: absolute;
  font-size: 1.5rem;
  opacity: 0.6;
  animation: float 3s ease-in-out infinite;
}

.header-deco:nth-child(1) { top: 20px; left: 10%; animation-delay: 0s; }
.header-deco:nth-child(2) { top: 40px; right: 12%; animation-delay: 0.5s; }
.header-deco:nth-child(3) { bottom: 10px; left: 20%; animation-delay: 1s; }
.header-deco:nth-child(4) { bottom: 20px; right: 18%; animation-delay: 1.5s; }

/* Nav */
nav {
  display: flex;
  justify-content: center;
  gap: 15px;
  padding: 15px 20px;
  flex-wrap: wrap;
}

nav a, nav button {
  font-family: 'Quicksand', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 10px 24px;
  border-radius: 50px;
  border: 2px solid var(--rosa-claro);
  background: var(--blanco);
  color: var(--fucsia);
  cursor: pointer;
  transition: all 0.3s ease;
}

nav a:hover, nav button:hover {
  background: var(--fucsia);
  color: var(--blanco);
  border-color: var(--fucsia);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px var(--sombra);
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 16px;
  padding: 30px 0;
}

.card {
  background: var(--blanco);
  border-radius: var(--radio);
  padding: 20px;
  box-shadow: 0 4px 20px var(--sombra);
  border: 2px solid transparent;
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 130px;
  text-decoration: none;
}

.card:hover {
  border-color: var(--rosa-claro);
}

.card-envelope {
  font-size: 2.5rem;
  transition: transform 0.3s ease;
}

.card:hover .card-envelope {
  transform: scale(1.15);
}

.card-badge {
  position: absolute;
  top: 6px;
  left: 6px;
  background: var(--fucsia);
  color: #fff;
  padding: 3px 10px;
  border-radius: 999px;
  font-family: 'Quicksand', sans-serif;
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.3px;
}

/* Letter View */
.letter-container {
  max-width: 700px;
  margin: 30px auto;
  padding: 0 20px;
}

.letter-paper {
  background: var(--blanco);
  border-radius: var(--radio);
  padding: 40px 35px;
  box-shadow: 0 6px 30px var(--sombra);
  position: relative;
  border: 1px solid var(--rosa-claro);
}

.letter-header {
  text-align: center;
  margin-bottom: 28px;
}

.letter-title {
  font-size: 1.6rem;
  color: var(--fucsia);
  font-weight: 600;
  letter-spacing: 0.5px;
}

.letter-divider {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--rosa-pastel), transparent);
  margin: 16px auto 0;
}

.letter-content {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--texto);
  white-space: pre-wrap;
  text-align: justify;
}

.letter-footer {
  margin-top: 30px;
  text-align: center;
}

.letter-date {
  display: block;
  margin-top: 16px;
  font-size: 0.8rem;
  color: var(--texto-claro);
  font-style: italic;
}

.back-btn {
  display: inline-block;
  margin: 25px 0;
  padding: 10px 28px;
  background: var(--blanco);
  border: 2px solid var(--rosa-claro);
  border-radius: 50px;
  color: var(--fucsia);
  font-family: 'Quicksand', sans-serif;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.back-btn:hover {
  background: var(--fucsia);
  color: var(--blanco);
  border-color: var(--fucsia);
  transform: translateY(-2px);
}



/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease;
}

.modal-content {
  background: var(--blanco);
  border-radius: var(--radio);
  max-width: 650px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
  animation: slideUp 0.3s ease;
}

.modal-body {
  padding: 35px 30px;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 60px 20px;
}

.empty-state-emoji {
  font-size: 3rem;
  margin-bottom: 15px;
}

.empty-state h3 {
  font-size: 1.4rem;
  margin-bottom: 10px;
}

.empty-state p {
  color: var(--texto-claro);
}

/* Login */
.login-container {
  max-width: 340px;
  margin: 0 auto;
  padding: 0 20px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.logout-fixed {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 100;
  padding: 8px 16px;
  border: none;
  border-radius: 999px;
  background: var(--blanco);
  color: var(--fucsia);
  font-family: 'Quicksand', sans-serif;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 15px var(--sombra);
  transition: transform .15s ease;
}

.logout-fixed:hover {
  transform: scale(1.05);
}

.pista-fixed {
  position: fixed;
  bottom: 16px;
  left: 16px;
  z-index: 100;
  padding: 8px 16px;
  border: none;
  border-radius: 999px;
  background: var(--blanco);
  color: var(--fucsia);
  font-family: 'Quicksand', sans-serif;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 15px var(--sombra);
  transition: transform .15s ease;
}

.pista-fixed:hover {
  transform: scale(1.05);
}

.pista-msg {
  position: fixed;
  z-index: 200;
  font-family: 'Domine', serif;
  font-size: 1.3rem;
  color: var(--fucsia);
  pointer-events: none;
  animation: clickFloat 2.5s ease forwards;
}

.click-popup {
  position: fixed;
  z-index: 200;
  font-family: 'Domine', serif;
  font-size: 1.8rem;
  color: var(--fucsia);
  pointer-events: none;
  animation: clickFloat 1s ease forwards;
}

@keyframes clickFloat {
  0%   { opacity: 0; transform: translateY(0) scale(0.8); }
  20%  { opacity: 1; transform: translateY(-10px) scale(1); }
  100% { opacity: 0; transform: translateY(-50px) scale(1); }
}

.hint-text {
  margin: 0;
  color: var(--fucsia);
  font-weight: 600;
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: opacity .5s ease, margin-top .5s ease, max-height .5s ease;
}

.hint-text.show {
  opacity: 1;
  max-height: 100px;
  margin-top: 18px;
}

.login-box {
  background: var(--blanco);
  border-radius: var(--radio);
  padding: 32px 28px;
  box-shadow: 0 6px 30px var(--sombra);
  text-align: center;
}

.login-box h2 {
  font-size: 1.5rem;
  margin-bottom: 6px;
}

.login-box p {
  color: var(--texto-claro);
  margin-bottom: 10px;
}

.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--texto);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--rosa-claro);
  border-radius: 12px;
  font-family: 'Quicksand', sans-serif;
  font-size: 1rem;
  color: var(--texto);
  background: var(--blanco);
  transition: border-color 0.3s ease;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--fucsia);
  box-shadow: 0 0 0 3px var(--sombra);
}

.form-group textarea {
  min-height: 200px;
  resize: vertical;
  line-height: 1.8;
}

.login-field {
  position: relative;
}

.login-field input {
  padding-top: 16px;
  padding-bottom: 16px;
}

.login-field label {
  position: absolute;
  left: 16px;
  top: 15px;
  margin: 0;
  color: var(--texto-claro);
  pointer-events: none;
  transition: all 0.15s ease;
}

.login-field input:focus + label,
.login-field input:not(:placeholder-shown) + label {
  top: -9px;
  left: 12px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--fucsia);
  background: var(--blanco);
  padding: 0 4px;
}

.btn {
  font-family: 'Quicksand', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  padding: 12px 32px;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--fucsia), var(--lila));
  color: var(--blanco);
  width: 100%;
}

.btn-primary:hover {
  box-shadow: 0 4px 20px var(--sombra-fuerte);
}

.btn-secondary {
  background: var(--blanco);
  border: 2px solid var(--rosa-claro);
  color: var(--fucsia);
}

.btn-secondary:hover {
  background: var(--rosa-pastel);
  color: var(--blanco);
}

.btn-danger {
  background: #FF6B6B;
  color: var(--blanco);
  font-size: 0.85rem;
  padding: 8px 18px;
}

.btn-danger:hover {
  background: #EE5A5A;
}

.btn-small {
  font-size: 0.85rem;
  padding: 8px 18px;
}

.error-msg {
  background: #FFE0E0;
  color: #D32F2F;
  padding: 10px 15px;
  border-radius: 10px;
  margin-bottom: 15px;
  font-size: 0.9rem;
  display: none;
}

.error-msg.show {
  display: block;
  animation: shake 0.4s ease;
}

/* Admin Panel */
.panel-header {
  display: flex;
  align-items: center;
  margin: 30px 0 20px;
  gap: 14px;
}

.panel-header h2 {
  font-size: 1.5rem;
}

.panel-actions {
  display: flex;
  gap: 10px;
}

.panel-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
  padding-bottom: 40px;
}

.panel-card {
  background: var(--blanco);
  border-radius: var(--radio);
  padding: 22px 25px;
  box-shadow: 0 3px 15px var(--sombra);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
  transition: all 0.3s ease;
}

.panel-card-info {
  flex: 1;
  min-width: 0;
}

.panel-card-title {
  font-family: 'Domine', serif;
  color: var(--fucsia);
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.panel-card-preview {
  font-size: 0.85rem;
  color: var(--texto-claro);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.panel-card-date {
  font-size: 0.75rem;
  color: var(--texto-claro);
  margin-top: 4px;
}

.panel-card-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

/* Modal */
.admin-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(90, 74, 90, 0.4);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.admin-modal-overlay.show {
  display: flex;
  animation: fadeIn 0.3s ease;
}

.modal {
  background: var(--blanco);
  border-radius: var(--radio);
  padding: 35px 30px;
  width: 100%;
  max-width: 550px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 10px 40px rgba(90, 74, 90, 0.3);
  animation: slideUp 0.3s ease;
}

.modal h3 {
  font-size: 1.5rem;
  margin-bottom: 20px;
  text-align: center;
}

.modal-actions {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.modal-actions .btn {
  flex: 1;
}

/* Confirm dialog */
.confirm-box {
  text-align: center;
}

.confirm-box p {
  margin-bottom: 20px;
  font-size: 1.05rem;
  line-height: 1.6;
}

.confirm-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--rosa-claro);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: var(--fucsia);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: #E05599;
}

/* Responsive */
@media (max-width: 768px) {
  header h1 { font-size: 2rem; }
  .cards-grid { grid-template-columns: 1fr; }
  .letter-paper { padding: 30px 25px; }
  .letter-title { font-size: 1.5rem; }
  .panel-card { flex-direction: column; align-items: flex-start; }
  .panel-card-actions { width: 100%; justify-content: flex-end; }
  .modal { padding: 25px 20px; }
}

/* Loading */
.loading {
  text-align: center;
  padding: 40px;
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  grid-column: 1 / -1;
}

.loading-heart {
  font-size: 2.5rem;
  animation: heartBeat 1s ease-in-out infinite;
}

/* Sidebar / User menu */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 280px;
  height: 100vh;
  background: var(--blanco);
  box-shadow: 2px 0 20px var(--sombra);
  padding: 26px 18px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  z-index: 50;
  overflow-y: auto;
  box-sizing: border-box;
}

.sidebar-brand {
  font-family: 'Domine', serif;
  font-size: 1.25rem;
  color: var(--fucsia);
  text-align: center;
  line-height: 1.3;
}

.sidebar-counter h2 {
  font-size: 1.05rem;
  text-align: center;
  margin-bottom: 12px;
}

.counter-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.counter-item {
  background: var(--rosa-claro, #FFE4EC);
  border-radius: 12px;
  padding: 12px 6px;
  text-align: center;
}

.counter-item span {
  display: block;
  font-family: 'Quicksand', sans-serif;
  font-size: 1.5rem;
  color: var(--fucsia);
  line-height: 1.1;
}

.counter-item small {
  color: var(--texto-claro);
  font-size: 0.7rem;
  font-weight: 600;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: auto;
}

.nav-link {
  display: block;
  padding: 14px 16px;
  border-radius: 12px;
  color: var(--texto);
  font-weight: 600;
  text-align: center;
  background: linear-gradient(135deg, rgba(255, 182, 193, 0.12), rgba(221, 160, 221, 0.12));
  border: 1px solid rgba(255, 182, 193, 0.2);
  transition: all 0.25s ease;
}

.nav-link:hover {
  background: linear-gradient(135deg, rgba(255, 182, 193, 0.25), rgba(221, 160, 221, 0.25));
  border-color: rgba(255, 182, 193, 0.4);
  box-shadow: 0 2px 12px rgba(255, 105, 180, 0.12);
  color: var(--texto);
}

.nav-link.active {
  background: linear-gradient(135deg, var(--rosa-pastel), var(--lila));
  color: var(--texto);
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(255, 105, 180, 0.25);
}

.nav-link.active:hover {
  box-shadow: 0 4px 18px rgba(255, 105, 180, 0.35);
}

.content {
  margin-left: 280px;
  padding: 48px 40px;
  min-height: 100vh;
  box-sizing: border-box;
}

.content-inner {
  min-height: calc(100vh - 96px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.content-inner--top {
  align-items: flex-start;
}

.content-inner .cards-grid {
  width: 100%;
}

@media (max-width: 768px) {
  .sidebar {
    position: static;
    width: 100%;
    height: auto;
  }
  .content {
    margin-left: 0;
  }
  .sidebar-nav {
    margin-top: 16px;
  }
  .modal-content {
    max-height: 90vh;
    margin: 10px;
  }
  .modal-body {
    padding: 25px 18px;
  }
  .letter-paper {
    padding: 30px 20px;
  }
}