/* ==========================================
   SKYE — Weather App Styles
   Estructura: Variables → Reset → Layout →
   Header → Search → States → Weather Card →
   Details → Animations → Responsive
   ========================================== */

/* ── Variables globales ── */
:root {
  --clr-bg:          #080814;
  --clr-surface:     rgba(255 255 255 / 0.04);
  --clr-surface-alt: rgba(255 255 255 / 0.07);
  --clr-border:      rgba(255 255 255 / 0.08);
  --clr-text:        #e8e8f0;
  --clr-text-muted:  rgba(232 232 240 / 0.45);
  --clr-accent:      #7EB8F7;
  --clr-accent-warm: #f7c87e;
  --clr-orb-1:       #1a2a6c;
  --clr-orb-2:       #2a1a5a;
  --clr-orb-3:       #0d2240;

  --ff-display: 'DM Serif Display', Georgia, serif;
  --ff-body:    'DM Sans', system-ui, sans-serif;

  --fs-xs:   0.75rem;
  --fs-sm:   0.875rem;
  --fs-base: 1rem;
  --fs-lg:   1.125rem;
  --fs-xl:   1.5rem;
  --fs-2xl:  2rem;
  --fs-3xl:  3rem;
  --fs-hero: clamp(2.5rem, 8vw, 5rem);

  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;

  --shadow-card: 0 24px 64px rgba(0 0 0 / 0.5),
                 0 0 0 1px rgba(255 255 255 / 0.06);

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--ff-body);
  background-color: var(--clr-bg);
  color: var(--clr-text);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--clr-accent);
  text-decoration: none;
  transition: opacity var(--transition);
}
a:hover { opacity: 0.75; }

/* ── Fondo animado ── */
.bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
  animation: drift 18s ease-in-out infinite alternate;
}

.orb-1 {
  width: 55vw; height: 55vw;
  background: radial-gradient(circle, #1e3a8a, transparent 70%);
  top: -20%; left: -15%;
  animation-duration: 20s;
}
.orb-2 {
  width: 40vw; height: 40vw;
  background: radial-gradient(circle, #312e81, transparent 70%);
  bottom: -10%; right: -10%;
  animation-duration: 25s;
  animation-delay: -8s;
}
.orb-3 {
  width: 30vw; height: 30vw;
  background: radial-gradient(circle, #0c4a6e, transparent 70%);
  top: 40%; left: 50%;
  animation-duration: 15s;
  animation-delay: -4s;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255 255 255 / 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255 255 255 / 0.025) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* ── Layout ── */
.app-wrapper {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100dvh;
  padding: 2rem 1.25rem 1.5rem;
  gap: 2rem;
}

/* ── Header ── */
.site-header {
  width: 100%;
  max-width: 680px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  animation: fadeDown 0.6s ease both;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon {
  font-size: 1.4rem;
  color: var(--clr-accent);
  animation: spin 12s linear infinite;
}

.logo-text {
  font-family: var(--ff-display);
  font-size: var(--fs-xl);
  letter-spacing: -0.02em;
  color: var(--clr-text);
}

.tagline {
  font-size: var(--fs-xs);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
}

/* ── Main ── */
.main-content {
  width: 100%;
  max-width: 680px;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  flex: 1;
}

/* ── Sección de búsqueda ── */
.search-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  animation: fadeDown 0.6s 0.1s ease both;
}

.hero-title {
  font-family: var(--ff-display);
  font-size: var(--fs-hero);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--clr-text);
}

.hero-title em {
  font-style: italic;
  color: var(--clr-accent);
  background: linear-gradient(135deg, var(--clr-accent), #a5d8ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Formulario ── */
.search-form { width: 100%; }

.input-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--clr-surface-alt);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 0.35rem 0.35rem 0.35rem 1.25rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.input-wrapper:focus-within {
  border-color: rgba(126, 184, 247, 0.4);
  box-shadow: 0 0 0 3px rgba(126, 184, 247, 0.1);
}

.city-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  font-family: var(--ff-body);
  font-size: var(--fs-lg);
  font-weight: 300;
  color: var(--clr-text);
  caret-color: var(--clr-accent);
}

.city-input::placeholder { color: var(--clr-text-muted); }

/* Eliminar estilos nativos de search */
.city-input::-webkit-search-cancel-button { display: none; }

.search-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  background: var(--clr-accent);
  border: none;
  border-radius: var(--radius-md);
  color: var(--clr-bg);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  flex-shrink: 0;
}

.search-btn:hover { background: #a5d8ff; transform: scale(1.05); }
.search-btn:active { transform: scale(0.97); }

/* ── Ciudades rápidas ── */
.quick-cities {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.quick-btn {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: 50px;
  color: var(--clr-text-muted);
  font-family: var(--ff-body);
  font-size: var(--fs-sm);
  padding: 0.4rem 0.9rem;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.quick-btn:hover {
  background: var(--clr-surface-alt);
  color: var(--clr-text);
  border-color: rgba(126, 184, 247, 0.3);
}

/* ── Estado de carga ── */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 3rem;
  color: var(--clr-text-muted);
  font-size: var(--fs-sm);
  letter-spacing: 0.05em;
}

.spinner {
  width: 36px; height: 36px;
  border: 2px solid rgba(126, 184, 247, 0.15);
  border-top-color: var(--clr-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* ── Estado de error ── */
.error-state {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(239 68 68 / 0.1);
  border: 1px solid rgba(239 68 68 / 0.25);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  color: #fca5a5;
  font-size: var(--fs-sm);
  animation: shake 0.4s ease;
}

.error-icon { font-size: var(--fs-lg); }

/* ── Tarjeta del clima ── */
.weather-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 2rem;
  backdrop-filter: blur(20px);
  animation: fadeUp 0.5s ease both;
}

/* ── Cabecera de tarjeta ── */
.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.city-name {
  font-family: var(--ff-display);
  font-size: var(--fs-2xl);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.country-name {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  margin-top: 0.2rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.current-time {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  text-align: right;
}

/* ── Temperatura ── */
.temp-section {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.weather-icon-large { font-size: 3.5rem; line-height: 1; }

.temp-group { flex: 1; }

.temp-main {
  font-family: var(--ff-display);
  font-size: var(--fs-3xl);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--clr-text);
}

.weather-desc {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  text-transform: capitalize;
  margin-top: 0.25rem;
}

.temp-feels {
  text-align: right;
}

.feels-label {
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.feels-value {
  font-family: var(--ff-display);
  font-size: var(--fs-xl);
  color: var(--clr-accent-warm);
  margin-top: 0.15rem;
}

/* ── Grilla de detalles ── */
.details-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.detail-card {
  background: var(--clr-surface-alt);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.detail-card:hover {
  background: rgba(255 255 255 / 0.1);
  border-color: rgba(126, 184, 247, 0.2);
  transform: translateY(-2px);
}

.detail-icon {
  color: var(--clr-accent);
  opacity: 0.8;
}

.detail-label {
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.detail-value {
  font-size: var(--fs-base);
  font-weight: 500;
  color: var(--clr-text);
}

/* ── Rango de temperatura ── */
.temp-range {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--clr-border);
}

.range-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  min-width: 48px;
}

.range-label {
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  letter-spacing: 0.05em;
}

.range-value {
  font-family: var(--ff-display);
  font-size: var(--fs-lg);
}

.range-bar {
  flex: 1;
  height: 4px;
  background: rgba(255 255 255 / 0.08);
  border-radius: 99px;
  overflow: hidden;
}

.range-fill {
  height: 100%;
  background: linear-gradient(90deg, #60a5fa, #f7c87e);
  border-radius: 99px;
  width: 60%;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Footer ── */
.site-footer {
  color: var(--clr-text-muted);
  font-size: var(--fs-xs);
  text-align: center;
  letter-spacing: 0.04em;
  padding-top: 1rem;
}

/* ── Utilidades de visibilidad ── */
[hidden] { display: none !important; }

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

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes drift {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(4%, 6%) scale(1.08); }
}

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

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%       { transform: translateX(-6px); }
  40%       { transform: translateX(6px); }
  60%       { transform: translateX(-4px); }
  80%       { transform: translateX(4px); }
}

/* ── Responsive ── */
@media (max-width: 480px) {
  .app-wrapper { padding: 1.5rem 1rem; }

  .details-grid { grid-template-columns: repeat(2, 1fr); }

  .temp-section { gap: 1rem; }

  .weather-icon-large { font-size: 2.5rem; }

  .temp-main { font-size: var(--fs-2xl); }

  .tagline { display: none; }

  .weather-card { padding: 1.5rem; }
}

@media (max-width: 340px) {
  .details-grid { grid-template-columns: 1fr 1fr; }
}