/* ============================================================
   Colorfly Studio — styles.css
   ============================================================ */

/* ── Variables globales ─────────────────────────────────── */
:root {
  --color-bg: #faf9f6;
  --color-white: #ffffff;
  --color-border: #e2ddd6;
  --color-text: #1a1816;
  --color-text-muted: #706c65;
  --color-text-hint: #a09990;
  --color-accent: #c84b2f;
  --color-accent-light: #f5e9e5;
  --font-main: "DM Sans", sans-serif;
  --font-display: "Playfair Display", serif;
  --font-mono: "DM Mono", monospace;
  --radius: 12px;
  --radius-lg: 20px;
}

/* ── Reset básico ───────────────────────────────────────── */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Utilidad para lectores de pantalla */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

/* ── Header ─────────────────────────────────────────────── */
.site-header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: 1.25rem 2rem;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--color-text);
}

.logo-mark {
  font-size: 1.4rem;
  color: var(--color-accent);
  display: inline-block;
  animation: spin 8s linear infinite;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
}

.tagline {
  font-size: 0.8rem;
  color: var(--color-text-hint);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ── Contenido principal ────────────────────────────────── */
main {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem;
}

/* ── Controles ──────────────────────────────────────────── */
.controls-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.control-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.hint-text {
  font-size: 0.7rem;
  color: var(--color-text-hint);
}

.select-wrapper {
  position: relative;
}

.select-wrapper::after {
  content: "▾";
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.select-wrapper select {
  appearance: none;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.6rem 2rem 0.6rem 0.9rem;
  font-family: var(--font-main);
  font-size: 0.9rem;
  color: var(--color-text);
  cursor: pointer;
  min-width: 140px;
}

.select-wrapper select:focus {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* Botón principal */
.generate-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--color-accent);
  color: #ffffff;
  border: none;
  border-radius: var(--radius);
  padding: 0.7rem 1.4rem;
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.15s ease;
}

.generate-btn:hover {
  background-color: #b03d24;
  transform: translateY(-1px);
}

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

.generate-btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.btn-icon {
  font-size: 1.1rem;
  transition: transform 0.5s ease;
}

.generate-btn:hover .btn-icon {
  transform: rotate(180deg);
}

/* ── Layout paleta + descripción ────────────────────────── */
.palette-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 1.5rem;
  align-items: start;
  margin-bottom: 3rem;
}

/* ── Contenedor de swatches ─────────────────────────────── */
.palette-container {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  min-height: 200px;
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
}

.palette-placeholder {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 3rem;
  color: var(--color-text-hint);
}

.placeholder-icon {
  font-size: 2.5rem;
  opacity: 0.3;
}

.palette-placeholder p {
  font-size: 0.875rem;
}

/* Swatch individual */
.swatch {
  flex: 1 1 calc(16.66% - 0.875rem);
  min-width: 80px;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  border: 1px solid rgba(0, 0, 0, 0.06);
  position: relative;
  animation: entrada 0.4s ease both;
  transition: transform 0.2s ease;
}

.swatch:hover {
  transform: translateY(-6px);
}

.swatch:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.swatch-color {
  height: 120px;
  width: 100%;
  display: block;
}

.swatch-info {
  padding: 0.6rem 0.75rem;
  background-color: var(--color-white);
}

.swatch-code {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-text-muted);
  display: block;
}

.swatch-alt-code {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-text-hint);
  display: block;
  margin-top: 0.1rem;
}

.copy-indicator {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background-color: rgba(255, 255, 255, 0.85);
  border-radius: 50%;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.swatch:hover .copy-indicator,
.swatch.copied .copy-indicator {
  opacity: 1;
}

/* ── Panel de descripción ───────────────────────────────── */
.description-panel {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  position: sticky;
  top: 80px;
}

.description-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.description-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.description-text {
  font-size: 0.92rem;
  line-height: 1.7;
  min-height: 80px;
  color: var(--color-text);
}

.description-placeholder {
  color: var(--color-text-hint);
  font-size: 0.85rem;
  font-style: italic;
}

.mood-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.mood-tag {
  font-size: 0.72rem;
  font-weight: 500;
  padding: 0.25rem 0.65rem;
  border-radius: 100px;
  background-color: var(--color-accent-light);
  color: var(--color-accent);
}

/* ── Historial ──────────────────────────────────────────── */
.history-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.history-container {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.history-empty {
  font-size: 0.85rem;
  color: var(--color-text-hint);
}

.history-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.history-swatches {
  display: flex;
  gap: 4px;
}

.history-swatch {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.history-meta {
  flex: 1;
  min-width: 0;
}

.history-desc {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.history-time {
  font-size: 0.7rem;
  color: var(--color-text-hint);
  font-family: var(--font-mono);
}

/* ── Footer ─────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 1.5rem 2rem;
  text-align: center;
}

.site-footer p {
  font-size: 0.8rem;
  color: var(--color-text-hint);
}

/* ── Toast ──────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background-color: var(--color-text);
  color: #ffffff;
  padding: 0.65rem 1.25rem;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  z-index: 9999;
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  pointer-events: none;
}

.toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── Animaciones ────────────────────────────────────────── */
@keyframes entrada {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 900px) {
  .palette-layout {
    grid-template-columns: 1fr;
  }

  .description-panel {
    position: static;
  }
}

@media (max-width: 600px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .controls-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .generate-btn {
    width: 100%;
    justify-content: center;
  }

  .swatch {
    flex: 1 1 calc(33% - 0.875rem);
    min-width: 70px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}