/* =========================================
   TodoLitigio — Identidad visual "Ink & Verdigris"
   ========================================= */

/* Reset ------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
input, textarea, button { font: inherit; color: inherit; }
p { margin: 0; }
h1, h2, h3, h4 {
  font-family: 'Fraunces', Georgia, 'Times New Roman', serif;
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.15;
  margin: 0;
  font-optical-sizing: auto;
}

/* Variables --------------------------------------------- */
:root {
  --bg:            #E6E8E7;
  --bg-2:          #EAEFEA;
  --bg-3:          #DDE7E3;

  --surface:       rgba(41,76,90,0.035);
  --surface-hover: rgba(41,76,90,0.07);

  --border:        rgba(48,58,64,0.12);
  --border-strong: rgba(48,58,64,0.22);

  --text:          #303A40;
  --text-muted:    rgba(48,58,64,0.74);
  --text-dim:      rgba(48,58,64,0.56);

  --accent:        #294C5A;
  --accent-bright: #3E6874;
  --accent-dim:    rgba(41,76,90,0.12);

  --warm:          #6D9690;
  --warm-bright:   #82AAA3;
  --warm-dim:      rgba(109,150,144,0.16);

  --max:           1200px;
  --gutter:        24px;
  --radius:        2px;
}

/* Canvas background ------------------------------------- */
#bg-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background:
    var(--bg);
  pointer-events: none;
}

/* Header ------------------------------------------------ */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245,243,237,0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Brand */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  white-space: nowrap;
}
.brand-mark {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--accent);
  color: var(--accent);
  border-radius: 0;
  flex-shrink: 0;
}
.brand-name {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1;
}
.brand-name-accent { color: var(--accent); }

/* Nav desktop */
.nav-desktop { display: flex; gap: 4px; }
.nav-desktop a {
  padding: 8px 14px;
  font-size: 0.9rem;
  color: var(--text-muted);
  border-radius: var(--radius);
  transition: color 0.2s ease;
}
.nav-desktop a:hover { color: var(--text); }

.nav-actions { display: flex; gap: 12px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: all 0.2s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #FFFFFF;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-bright);
  border-color: var(--accent-bright);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(41,76,90,0.16);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.btn-lg { padding: 16px 28px; font-size: 1rem; }

/* Hamburger */
.hamburger {
  display: none;
  background: none;
  border: 1px solid var(--border);
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  padding: 0;
}
.hamburger span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--text);
  transition: all 0.2s ease;
}
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 8px;
  padding: 16px var(--gutter) 20px;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
}
.mobile-menu.active { display: flex; }
.mobile-menu a {
  padding: 12px 14px;
  font-size: 0.95rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: color 0.2s ease, border-color 0.2s ease;
}
.mobile-menu a:hover { color: var(--text); border-color: var(--border-strong); }
.mobile-menu .mobile-cta {
  background: var(--warm);
  color: #F5F3ED;
  border-color: var(--warm);
  text-align: center;
  font-weight: 500;
}

/* Hero --------------------------------------------------- */
.hero {
  padding: 96px var(--gutter) 112px;
  position: relative;
}
.hero-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.hero-tag-line {
  width: 32px;
  height: 1px;
  background: var(--accent);
}
.hero-title {
  font-size: clamp(2rem, 5vw, 3.6rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.08;
  margin: 0 0 28px;
}
.hero-sub {
  font-size: clamp(1.02rem, 1.55vw, 1.16rem);
  line-height: 1.75;
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 40px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 44px;
}
.hero-meta {
  display: flex;
  gap: 22px;
  justify-content: center;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--text-dim);
}
.hero-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}
.hero-meta-item::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

/* Section framework ------------------------------------- */
.section {
  padding: 120px var(--gutter);
  position: relative;
}
.section-inner {
  max-width: var(--max);
  margin: 0 auto;
}
.section-specialty,
.section-process,
.section-eval { background: var(--bg-2); }

.section-head {
  max-width: 760px;
  margin-bottom: 56px;
}
.section-head-center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.section-kicker {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.section-title {
  font-size: clamp(1.75rem, 3.4vw, 2.6rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--text);
}
.section-lede {
  font-size: 1.06rem;
  line-height: 1.75;
  color: var(--text-muted);
  margin: 22px auto 0;
  max-width: 640px;
}

/* Especialidad ------------------------------------------ */
.specialty-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-bottom: 32px;
}
.specialty-card {
  background: var(--bg);
  padding: 36px 32px;
  transition: background 0.25s ease;
}
.specialty-card:hover { background: var(--bg-3); }
.specialty-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}
.specialty-card h3 {
  font-size: 1.18rem;
  margin: 0 0 12px;
  font-weight: 500;
}
.specialty-card p {
  color: var(--text-muted);
  line-height: 1.7;
  font-size: 0.94rem;
  margin: 0;
}
.specialty-note {
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.7;
  padding: 24px;
  border-top: 1px solid var(--border);
  max-width: 760px;
  margin: 0 auto;
}

/* Servicios --------------------------------------------- */
.services-list {
  border-top: 1px solid var(--border);
}
.service-row {
  display: grid;
  grid-template-columns: 60px 1fr 1fr;
  gap: 40px;
  align-items: start;
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s ease, padding 0.2s ease;
}
.service-row:hover {
  background: rgba(255,255,255,0.018);
  padding-left: 16px;
  padding-right: 16px;
  margin-left: -16px;
  margin-right: -16px;
}
.service-index {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  color: var(--accent);
  padding-top: 3px;
  letter-spacing: 0.05em;
}
.service-title {
  font-size: 1.16rem;
  font-weight: 500;
  margin: 0;
  letter-spacing: -0.01em;
}
.service-desc {
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.65;
  margin: 0;
}

/* Proceso ----------------------------------------------- */
.process-steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.process-step {
  padding: 32px 26px;
  background: var(--bg);
  border: 1px solid var(--border);
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.process-step:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}
.process-num {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}
.process-step h3 {
  font-size: 1.08rem;
  margin: 0 0 10px;
  font-weight: 500;
}
.process-step p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.65;
  margin: 0;
}

/* Transparencia ----------------------------------------- */
.trust-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}
.trust-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.trust-list li {
  padding-left: 22px;
  border-left: 2px solid var(--accent);
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}
.trust-list li strong {
  display: block;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 6px;
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1.02rem;
  letter-spacing: -0.005em;
}

/* Evaluación -------------------------------------------- */
.eval-layout {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
  align-items: stretch;
}
.eval-col-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 14px;
}

/* Chat -------------------------------------------------- */
.chat-container {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.chat-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
  flex-shrink: 0;
}
.chat-box {
  height: 400px;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scroll-behavior: smooth;
}
.message {
  max-width: 85%;
  padding: 12px 16px;
  border-radius: var(--radius);
  line-height: 1.6;
  font-size: 0.92rem;
  animation: fadeMessage 0.25s ease;
  word-wrap: break-word;
}
.message.bot {
  align-self: flex-start;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
}
.message.user {
  align-self: flex-end;
  background: var(--accent-dim);
  border: 1px solid rgba(127,166,154,0.28);
  color: var(--text);
}
.typing-dots {
  display: flex;
  gap: 5px;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: fit-content;
  align-self: flex-start;
}
.typing-dots span {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: typingBounce 1.2s infinite ease-in-out;
}
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }

.input-area {
  display: flex;
  border-top: 1px solid var(--border);
  background: transparent;
}
.input-area input {
  flex: 1;
  min-width: 0;
  padding: 15px 18px;
  background: transparent;
  border: none;
  border-radius: 0;
  color: var(--text);
  font-size: 0.92rem;
  outline: none;
}
.input-area input::placeholder { color: var(--text-dim); }
.input-area input:focus { background: rgba(255,255,255,0.02); }
.input-area button {
  padding: 15px 24px;
  background: var(--warm);
  color: #F5F3ED;
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  border-radius: 0;
  transition: background 0.2s ease;
}
.input-area button:hover:not(:disabled) { background: var(--warm-bright); }
.input-area button:disabled { opacity: 0.55; cursor: not-allowed; }

@keyframes fadeMessage {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes typingBounce {
  0%, 80%, 100% { transform: scale(0.7); opacity: 0.45; }
  40%           { transform: scale(1);   opacity: 1; }
}

/* Booking ----------------------------------------------- */
.booking-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.booking-card-head { margin-bottom: 20px; }
.booking-card-head h3 {
  font-size: 1.1rem;
  margin: 0 0 4px;
  font-weight: 500;
}
.booking-card-head p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

.booking-field { margin-bottom: 18px; }
.booking-label {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 10px;
}
.booking-dates {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.booking-date {
  padding: 10px 14px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.85rem;
  border-radius: var(--radius);
  transition: all 0.2s ease;
}
.booking-date:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.booking-date.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent-bright);
}
.booking-times {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.booking-times button {
  padding: 10px 6px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.85rem;
  border-radius: var(--radius);
  transition: all 0.2s ease;
}
.booking-times button:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.booking-times .no-slots {
  grid-column: 1 / -1;
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 10px 0;
}

.booking-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.booking-form input,
.booking-form textarea {
  padding: 12px 14px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.9rem;
  transition: border-color 0.2s ease;
}
.booking-form input::placeholder,
.booking-form textarea::placeholder { color: var(--text-dim); }
.booking-form input:focus,
.booking-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.booking-form textarea {
  min-height: 72px;
  resize: vertical;
  font-family: inherit;
}
.booking-form button[type="submit"] {
  padding: 14px;
  background: var(--warm);
  color: #F5F3ED;
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  border-radius: var(--radius);
  transition: all 0.2s ease;
  margin-top: 4px;
}
.booking-form button[type="submit"]:hover:not(:disabled) {
  background: var(--warm-bright);
  transform: translateY(-1px);
}
.booking-form button[type="submit"]:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}
.booking-fine {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin: 4px 0 0;
  text-align: center;
}

/* Nota de evaluación ----------------------------------- */
.eval-note {
  padding: 22px 24px;
  border: 1px solid var(--border);
  border-left: 2px solid var(--accent);
  background: rgba(255,255,255,0.02);
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--text-muted);
}
.eval-note strong { color: var(--text); font-weight: 500; }

/* Footer ------------------------------------------------ */
.footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
}
.footer-container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 64px var(--gutter);
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr 1fr;
  gap: 48px;
}
.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin: 20px 0 0;
  max-width: 320px;
}
.brand-footer { margin-bottom: 0; }

.footer-col h4 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0 0 18px;
  font-weight: 500;
}
.footer-col a {
  display: block;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0 0 8px;
  transition: color 0.2s ease;
}
.footer-col a:hover { color: var(--accent); }
.footer-col p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0 0 8px;
}
.pending {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--text-dim);
  background: rgba(255,255,255,0.04);
  padding: 1px 6px;
  border-radius: 2px;
  letter-spacing: 0.03em;
}
.footer-legal {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.6;
}

.footer-bottom {
  max-width: var(--max);
  margin: 0 auto;
  padding: 22px var(--gutter);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: 0.82rem;
  color: var(--text-dim);
  flex-wrap: wrap;
}
.footer-status {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* Focus visible ----------------------------------------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 2px;
}

/* Responsive -------------------------------------------- */
@media (max-width: 1024px) {
  .footer-container {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 900px) {
  .nav-desktop,
  .nav-actions { display: none; }
  .hamburger { display: flex; }

  .hero { padding: 60px var(--gutter) 80px; }
  .hero-title { font-size: clamp(1.9rem, 8vw, 2.6rem); }
  .hero-meta { flex-direction: column; align-items: center; gap: 12px; }

  .section { padding: 80px var(--gutter); }
  .section-head { margin-bottom: 40px; }

  .specialty-grid { grid-template-columns: 1fr; }
  .specialty-card { padding: 28px 24px; }

  .service-row {
    grid-template-columns: 32px 1fr;
    gap: 16px;
    padding: 24px 0;
  }
  .service-row:hover {
    padding-left: 0;
    padding-right: 0;
    margin-left: 0;
    margin-right: 0;
  }
  .service-desc { grid-column: 2; }

  .process-steps { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: 1fr; gap: 40px; }

  .eval-layout { grid-template-columns: 1fr; }
  .chat-box { height: 340px; }
  .booking-times { grid-template-columns: repeat(2, 1fr); }

  .footer-container {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 48px var(--gutter);
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .brand-name { font-size: 1.15rem; }
  .brand-mark { width: 28px; height: 28px; }
  .hero-actions .btn { width: 100%; }
  .input-area { flex-direction: column; }
  .input-area input { border-bottom: 1px solid var(--border); }
  .input-area button { padding: 14px; }
}

/* Reduced motion ---------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  html { scroll-behavior: auto; }
}