/* =====================================================
   Bitly TOL — The Original Lab · Design System
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Paleta TOL */
  --tol-bg:         #0a0a0f;
  --tol-surface:    #13131a;
  --tol-card:       #1c1c27;
  --tol-border:     rgba(255,255,255,0.07);
  --tol-accent:     #ff6b35;
  --tol-accent2:    #f7c59f;
  --tol-gold:       #e8c547;
  --tol-text:       #f0f0f5;
  --tol-muted:      #8888a0;
  --tol-success:    #34d399;
  --tol-danger:     #f87171;

  /* Gradientes */
  --grad-accent:    linear-gradient(135deg, #ff6b35 0%, #e8c547 100%);
  --grad-card:      linear-gradient(180deg, #1c1c27 0%, #13131a 100%);

  /* Sombras */
  --shadow-sm:      0 2px 8px rgba(0,0,0,0.4);
  --shadow-md:      0 8px 32px rgba(0,0,0,0.5);
  --shadow-glow:    0 0 24px rgba(255,107,53,0.25);

  /* Tipografía */
  --font:           'Inter', system-ui, sans-serif;
  --radius-sm:      8px;
  --radius-md:      14px;
  --radius-lg:      20px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--tol-bg);
  color: var(--tol-text);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Header ─────────────────────────────────────────── */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: rgba(19,19,26,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--tol-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--grad-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
}

.logo-text {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--tol-text);
}

.logo-text span { color: var(--tol-accent); }

.header-nav { display: flex; gap: 0.5rem; }

.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
}

.nav-btn.ghost {
  background: transparent;
  color: var(--tol-muted);
  border: 1px solid var(--tol-border);
}
.nav-btn.ghost:hover { color: var(--tol-text); border-color: rgba(255,255,255,0.2); }

.nav-btn.primary {
  background: var(--grad-accent);
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.nav-btn.primary:hover { transform: translateY(-1px); box-shadow: 0 0 32px rgba(255,107,53,0.4); }

/* ── Hero ───────────────────────────────────────────── */
.hero {
  text-align: center;
  padding: 5rem 1.5rem 3rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(255,107,53,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 1rem;
  background: rgba(255,107,53,0.12);
  border: 1px solid rgba(255,107,53,0.3);
  border-radius: 99px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--tol-accent);
  margin-bottom: 1.5rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1rem;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.05rem;
  color: var(--tol-muted);
  max-width: 500px;
  margin: 0 auto 2.5rem;
}

/* ── Shorten Card ───────────────────────────────────── */
.shorten-card {
  background: var(--tol-card);
  border: 1px solid var(--tol-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  max-width: 680px;
  margin: 0 auto 2rem;
  box-shadow: var(--shadow-md);
}

.input-row {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.input-wrap {
  flex: 1;
  position: relative;
}

.input-wrap .input-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--tol-muted);
  font-size: 1rem;
}

input[type="text"], input[type="url"] {
  width: 100%;
  padding: 0.85rem 1rem 0.85rem 2.6rem;
  background: var(--tol-surface);
  border: 1px solid var(--tol-border);
  border-radius: var(--radius-sm);
  color: var(--tol-text);
  font-family: var(--font);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}
input:focus { border-color: var(--tol-accent); }
input::placeholder { color: var(--tol-muted); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--grad-accent);
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 36px rgba(255,107,53,0.45); }
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: var(--tol-surface);
  color: var(--tol-text);
  border: 1px solid var(--tol-border);
}
.btn-secondary:hover { border-color: rgba(255,255,255,0.2); }

.btn-danger {
  background: transparent;
  color: var(--tol-danger);
  border: 1px solid rgba(248,113,113,0.3);
  padding: 0.4rem 0.9rem;
  font-size: 0.82rem;
}
.btn-danger:hover { background: rgba(248,113,113,0.1); }

.alias-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.alias-prefix {
  color: var(--tol-muted);
  font-size: 0.85rem;
  white-space: nowrap;
}

.alias-row input { flex: 1; }

/* ── Result Box ─────────────────────────────────────── */
.result-box {
  margin-top: 1.5rem;
  padding: 1.25rem;
  background: rgba(52,211,153,0.06);
  border: 1px solid rgba(52,211,153,0.25);
  border-radius: var(--radius-sm);
  display: none;
  animation: slideDown 0.3s ease;
}

.result-box.visible { display: block; }

.result-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--tol-success);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.6rem;
}

.result-url-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.result-url {
  flex: 1;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--tol-text);
  word-break: break-all;
}

.result-url a { color: var(--tol-accent); text-decoration: none; }
.result-url a:hover { text-decoration: underline; }

.copy-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  background: var(--tol-card);
  border: 1px solid var(--tol-border);
  border-radius: var(--radius-sm);
  color: var(--tol-text);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}
.copy-btn:hover { border-color: var(--tol-accent); color: var(--tol-accent); }
.copy-btn.copied { border-color: var(--tol-success); color: var(--tol-success); }

.btn-copy-sm {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem 0.6rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--tol-border);
  border-radius: 6px;
  color: var(--tol-muted);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-left: 0.6rem;
  vertical-align: middle;
}
.btn-copy-sm:hover {
  border-color: var(--tol-accent);
  color: var(--tol-accent);
  background: rgba(255,107,53,0.05);
  transform: translateY(-1px);
}
.btn-copy-sm.copied {
  border-color: var(--tol-success);
  color: var(--tol-success);
  background: rgba(52,211,153,0.05);
}

/* ── Error ──────────────────────────────────────────── */
.error-box {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  background: rgba(248,113,113,0.08);
  border: 1px solid rgba(248,113,113,0.3);
  border-radius: var(--radius-sm);
  color: var(--tol-danger);
  font-size: 0.9rem;
  display: none;
}
.error-box.visible { display: block; }

/* ── Stats strip ────────────────────────────────────── */
.stats-strip {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  margin: 1rem auto 3rem;
  max-width: 680px;
}

.stat-item {
  text-align: center;
}
.stat-item .num {
  font-size: 1.6rem;
  font-weight: 800;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-item .lbl { font-size: 0.78rem; color: var(--tol-muted); }

/* ── Table ──────────────────────────────────────────── */
.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

.section-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.section-title .badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  background: rgba(255,107,53,0.12);
  color: var(--tol-accent);
  border-radius: 99px;
}

.table-wrap {
  background: var(--tol-card);
  border: 1px solid var(--tol-border);
  border-radius: var(--radius-md);
  overflow-x: auto;
  overflow-y: hidden;
  box-shadow: var(--shadow-sm);
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead th {
  padding: 0.85rem 1.25rem;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--tol-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--tol-surface);
  border-bottom: 1px solid var(--tol-border);
}

tbody tr {
  border-bottom: 1px solid var(--tol-border);
  transition: background 0.15s;
}
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: rgba(255,255,255,0.03); }

td {
  padding: 0.9rem 1.25rem;
  font-size: 0.88rem;
  vertical-align: middle;
}

.code-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.7rem;
  background: rgba(255,107,53,0.1);
  border: 1px solid rgba(255,107,53,0.2);
  border-radius: var(--radius-sm);
  font-family: monospace;
  font-size: 0.92rem;
  color: var(--tol-accent);
  font-weight: 600;
}

.original-url {
  max-width: 280px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--tol-muted);
  font-size: 0.82rem;
}

.click-count {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--tol-gold);
}

.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--tol-muted);
}

.empty-state .icon { font-size: 2.5rem; margin-bottom: 0.75rem; }
.empty-state p { font-size: 0.9rem; }

/* ── Modal de estadísticas ──────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 1rem;
}
.modal-overlay.open { display: flex; }

.modal {
  background: var(--tol-card);
  border: 1px solid var(--tol-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  width: 100%;
  max-width: 600px;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: var(--shadow-md);
  animation: scaleIn 0.25s ease;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}

.modal-title { font-size: 1.1rem; font-weight: 700; }
.modal-code { color: var(--tol-accent); }

.modal-close {
  background: none;
  border: none;
  color: var(--tol-muted);
  font-size: 1.4rem;
  cursor: pointer;
  line-height: 1;
  padding: 0;
}
.modal-close:hover { color: var(--tol-text); }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--tol-surface);
  border: 1px solid var(--tol-border);
  border-radius: var(--radius-sm);
  padding: 1rem;
  text-align: center;
}
.stat-card .val { font-size: 1.8rem; font-weight: 800; color: var(--tol-accent); }
.stat-card .key { font-size: 0.75rem; color: var(--tol-muted); margin-top: 0.2rem; }

/* ── Chart ──────────────────────────────────────────── */
.chart-section { margin-bottom: 1.5rem; }
.chart-label { font-size: 0.82rem; font-weight: 600; color: var(--tol-muted); margin-bottom: 0.75rem; }

.bar-chart {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 100px;
  background: var(--tol-surface);
  border: 1px solid var(--tol-border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.75rem 0;
  overflow-x: auto;
}

.bar-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex: 1;
  min-width: 20px;
}

.bar {
  width: 100%;
  background: var(--grad-accent);
  border-radius: 3px 3px 0 0;
  min-height: 2px;
  transition: opacity 0.2s;
}
.bar:hover { opacity: 0.8; }

.bar-tip {
  font-size: 0.62rem;
  color: var(--tol-muted);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  max-height: 36px;
  overflow: hidden;
}

/* ── Loading ────────────────────────────────────────── */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.15);
  border-top-color: var(--tol-accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}

/* ── Footer ─────────────────────────────────────────── */
.site-footer {
  background: var(--tol-bg);
  background-image: linear-gradient(0deg, #050505 0%, transparent 100%);
  padding: 4rem 2rem 1.5rem;
  border-top: 1px solid var(--tol-border);
  font-family: var(--font);
  color: #ccc;
  margin-top: 3rem;
}

.footer-content {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr 1.5fr;
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

/* Redes sociales */
.social-links {
  display: flex;
  gap: 1rem;
}
.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: #111;
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 50%;
  color: #fff;
  text-decoration: none;
  transition: all 0.3s ease;
}
.social-icon:hover {
  background: var(--tol-accent);
  border-color: var(--tol-accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}
.social-icon svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* Información de contacto */
.contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 0.82rem;
  color: #aaa;
}
.contact-item a {
  color: #aaa;
  text-decoration: none;
  transition: all 0.25s ease;
  display: inline-block;
}
.contact-item a:hover {
  color: var(--tol-accent);
  transform: translateY(-2px);
  text-shadow: 0 0 16px rgba(255,107,53,0.6);
}
.contact-item svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: #888;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Columna Acerca de */
.footer-about {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
}
.footer-logo {
  height: 45px;
  margin-bottom: 1rem;
}
.footer-about p {
  font-size: 0.8rem;
  color: #888;
  max-width: 300px;
  line-height: 1.6;
}

/* Sub-footer (Derechos y dev) */
.sub-footer {
  max-width: 1100px;
  margin: 0 auto;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.05);
  text-align: center;
  font-size: 0.72rem;
  color: #666;
}
.sub-footer a {
  color: var(--tol-accent);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.25s ease;
  display: inline-block;
}
.sub-footer a:hover {
  color: var(--tol-accent);
  transform: translateY(-2px);
  text-shadow: 0 0 16px rgba(255,107,53,0.6);
}

@media (max-width: 860px) {
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }
  .footer-about {
    align-items: center;
    text-align: center;
  }
  .contact-list {
    align-items: center;
  }
  .social-links {
    justify-content: center;
  }
}

/* ── Animaciones ─────────────────────────────────────── */
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to   { opacity: 1; transform: scale(1); }
}

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

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(100%); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes slideOutRight {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(100%); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ── Toasts ─────────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 9999;
}

.toast {
  background: var(--tol-surface);
  border: 1px solid var(--tol-border);
  color: var(--tol-text);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  font-size: 0.9rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: slideInRight 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  min-width: 250px;
}

.toast.success { border-left: 3px solid var(--tol-success); }
.toast.error   { border-left: 3px solid var(--tol-danger); }
.toast.info    { border-left: 3px solid var(--tol-accent); }

.toast.hiding {
  animation: slideOutRight 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* ── Confirm Modal ──────────────────────────────────────── */
.confirm-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  padding: 1rem;
  animation: fadeIn 0.2s ease;
}

.confirm-modal {
  background: var(--tol-card);
  border: 1px solid var(--tol-border);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-md);
  animation: scaleIn 0.2s ease;
  text-align: center;
}

.confirm-modal p {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 2rem;
  color: var(--tol-text);
}

.confirm-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

/* ── Responsive ─────────────────────────────────────── */
@media (max-width: 600px) {
  .input-row { flex-direction: column; }
  .btn-primary { width: 100%; justify-content: center; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .header { padding: 0.75rem 1rem; }
  .hero { padding: 3rem 1rem 2rem; }
}