/* meedefensa.com — diseño «Temis IA» (fundador, 2026-09-12): tinta #050B14, paneles azul noche, cian de acción, Inter.
   Tokens primero; el resto son componentes. Sin framework. */
:root {
  --ink: #050B14; --panel: #081522; --panel-2: #0B1C2C; --band: #06111C;
  --cyan: #28A7FF; --blue: #006CFF; --blue-2: #1F7DFF; --muted: #91A4B8; --dim: #64778C; --line: #17344D; --line-2: #244A69;
  --text: #FFFFFF; --text-2: #CBD5E1; --ok: #6EE7B7; --ok-bg: rgba(16,185,129,0.12); --no: #FDA4AF; --no-bg: rgba(244,63,94,0.12); --no-line: rgba(244,63,94,0.3);
  --glass: rgba(8,21,34,0.76); --glass-line: rgba(87,163,214,0.22); --card-line: rgba(65,133,180,0.28);
  --glow: 0 0 50px rgba(40,167,255,0.16);
  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --gutter: clamp(1.25rem, 4vw, 3rem); --shell: 73.75rem; --radius: 16px; --radius-sm: 12px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1); --dur: 320ms;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; color-scheme: dark; }
body { margin: 0; background: radial-gradient(circle at 70% 0%, rgba(20,112,180,0.15), transparent 32%), var(--ink); color: var(--text); font-family: var(--sans); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
::selection { background: #188BD7; color: #fff; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; line-height: 1.1; letter-spacing: -0.02em; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }
ul { margin: 0; padding: 0; list-style: none; }
[hidden] { display: none !important; }
.shell { width: min(var(--shell), calc(100% - 2 * var(--gutter))); margin: 0 auto; }
.muted { color: var(--muted); line-height: 1.75; }
b { color: var(--cyan); font-weight: inherit; }

/* ---------- Barra ---------- */
.bar { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.9rem var(--gutter); background: rgba(5,11,20,0.82); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid rgba(23,52,77,0.6); }
.brand { display: grid; color: var(--text); }
.wordmark { font-size: 1.5rem; font-weight: 900; letter-spacing: -0.03em; line-height: 1.1; }
.wordmark b { color: var(--cyan); font-weight: 900; }
.tagline { font-size: 0.7rem; color: var(--muted); }
.bar nav { display: flex; align-items: center; gap: clamp(0.9rem, 1.8vw, 1.75rem); }
.bar nav > a:not(.btn) { color: var(--text-2); font-size: 0.925rem; transition: color var(--dur) var(--ease); }
.bar nav > a:not(.btn):hover { color: var(--text); }
.who-pill { color: var(--muted); font-size: 0.85rem; }
.menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 10px; background: transparent; color: var(--text); cursor: pointer; align-items: center; justify-content: center; }
.menu-toggle svg { width: 22px; height: 22px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.7rem 1.25rem; border-radius: 999px; font: inherit; font-size: 0.925rem; font-weight: 600; cursor: pointer; text-decoration: none; white-space: nowrap; transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease); }
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--blue); color: #fff; border: 1px solid var(--blue); box-shadow: var(--glow); }
.btn-primary:hover { background: var(--blue-2); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid #475569; }
.btn-ghost:hover { border-color: var(--cyan); }
.btn:disabled { opacity: 0.6; cursor: wait; transform: none; }

/* ---------- Héroe ---------- */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid rgba(23,52,77,0.6); min-height: 47.5rem; }
.gridlines { position: absolute; inset: 0; opacity: 0.3; pointer-events: none; background-image: linear-gradient(rgba(42,128,187,0.08) 1px, transparent 1px), linear-gradient(90deg, rgba(42,128,187,0.08) 1px, transparent 1px); background-size: 48px 48px; }
.hero-art { position: absolute; top: 0; right: 0; bottom: 0; width: 62%; pointer-events: none; }
.hero-art img { width: 100%; height: 100%; object-fit: cover; object-position: 80% center; opacity: 0.95; -webkit-mask-image: linear-gradient(to left, #000 55%, transparent 100%); mask-image: linear-gradient(to left, #000 55%, transparent 100%); }
.hero-art::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, var(--ink) 0%, rgba(5,11,20,0.35) 45%, transparent 100%); }
.hero-inner { position: relative; z-index: 2; width: min(var(--shell), calc(100% - 2 * var(--gutter))); margin: 0 auto; padding: clamp(3rem, 6vw, 5rem) 0 3.5rem; max-width: min(var(--shell), calc(100% - 2 * var(--gutter))); }
.hero-inner > * { max-width: 39.5rem; }
.eyebrow { margin: 0 0 1.2rem; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.32em; text-transform: uppercase; color: var(--cyan); }
.hero h1 { font-size: clamp(2.6rem, 1.6rem + 4.2vw, 4.25rem); font-weight: 900; line-height: 0.98; letter-spacing: -0.03em; }
.text-gradient { background: linear-gradient(90deg, #fff 0%, #EEF7FF 48%, #35A9FF 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sub { margin-top: 1.25rem; font-size: clamp(1.5rem, 1.2rem + 1.2vw, 1.9rem); font-weight: 700; letter-spacing: -0.02em; }
.lede { margin-top: 1rem; max-width: 36.5rem; font-size: 1.125rem; line-height: 1.8; color: var(--text-2); }

/* Panel de consulta (cristal) */
.glass { background: var(--glass); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border: 1px solid var(--glass-line); }
.panel { margin-top: 2rem; border-radius: var(--radius); overflow: hidden; display: grid; }
.thread { display: grid; gap: 0.9rem; max-height: 50vh; overflow-y: auto; padding: 1.1rem 1.25rem 0.4rem; }
.thread:empty { display: none; }
.msg { display: grid; grid-template-columns: 4rem minmax(0, 1fr); gap: 0.8rem; align-items: start; }
.msg .who { font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--dim); padding-top: 0.3rem; font-weight: 600; }
.msg.assistant .who { color: var(--cyan); }
.msg .body { white-space: pre-wrap; font-size: 0.975rem; line-height: 1.65; color: var(--text-2); }
.msg .body.typing::after { content: "▍"; color: var(--cyan); animation: blink 1s steps(2) infinite; }
@keyframes blink { to { opacity: 0; } }
.composer { display: grid; }
.composer textarea { width: 100%; min-height: 6.4rem; resize: none; border: 0; background: transparent; color: var(--text); font: inherit; font-size: 1rem; line-height: 1.6; padding: 1rem 1.25rem; }
.composer textarea::placeholder { color: #64748B; }
.composer textarea:focus { outline: none; }
.composer-row { display: flex; align-items: center; gap: 0.5rem; padding: 0.75rem; border-top: 1px solid rgba(23,52,77,0.7); }
.attach-btn { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.55rem 1rem; border: 0; border-radius: var(--radius-sm); background: rgba(255,255,255,0.05); color: var(--text-2); font: inherit; font-size: 0.9rem; cursor: pointer; transition: background var(--dur) var(--ease); }
.attach-btn:hover { background: rgba(255,255,255,0.09); }
.attach-btn svg { width: 16px; height: 16px; }
.icon-btn { width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center; border-radius: var(--radius-sm); border: 0; background: rgba(255,255,255,0.05); color: var(--text-2); cursor: pointer; }
.icon-btn svg { width: 18px; height: 18px; }
.icon-btn:hover { background: rgba(255,255,255,0.09); }
.icon-btn.rec { background: var(--no-bg); color: var(--no); box-shadow: 0 0 0 1px var(--no-line) inset; }
.composer-row .btn-primary { margin-left: auto; border-radius: var(--radius-sm); padding: 0.75rem 1.25rem; }
#suggestions { padding: 0 0.75rem 0.75rem; }
.suggestions { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chip { padding: 0.45rem 0.85rem; border-radius: 999px; border: 1px solid var(--line); background: rgba(11,28,44,0.7); color: var(--text-2); font: inherit; font-size: 0.8rem; line-height: 1.35; text-align: left; cursor: pointer; transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease); }
.chip:hover { border-color: var(--cyan); color: var(--text); }
.chat-foot { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding: 0.6rem 1.25rem 0.8rem; color: var(--dim); font-size: 0.8rem; border-top: 1px solid rgba(23,52,77,0.5); }
.trust { display: flex; flex-wrap: wrap; gap: 0.75rem 2rem; margin-top: 1.25rem; color: var(--text-2); font-size: 0.925rem; }
.trust span { display: inline-flex; align-items: center; gap: 0.5rem; }
.trust svg { width: 17px; height: 17px; color: var(--cyan); }

/* Oferta y registro dentro del chat */
.offer-card, .auth { margin: 0.6rem 1.25rem; border: 1px solid var(--card-line); border-radius: var(--radius-sm); padding: 1rem 1.1rem; background: linear-gradient(180deg, rgba(10,27,43,0.92), rgba(6,18,29,0.92)); display: grid; gap: 0.45rem; }
.offer-title, .auth h3 { font-size: 1.15rem; font-weight: 700; color: #fff; }
.offer-price { font-size: 1.5rem; font-weight: 900; color: var(--cyan); }
.offer-reason, .offer-text, .auth p { color: var(--muted); font-size: 0.925rem; }
.offer-card .btn { justify-self: start; margin-top: 0.3rem; }
.auth-form { display: grid; gap: 0.5rem; }
.auth-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 0.5rem; }
.auth-row input { padding: 0.75rem 0.9rem; font: inherit; border: 1px solid var(--line-2); border-radius: var(--radius-sm); background: var(--ink); color: var(--text); }
.auth-row input:focus { outline: none; border-color: var(--cyan); }
.field-label { font-size: 0.85rem; color: var(--muted); }
.demo-note { color: var(--dim); font-size: 0.8rem; }

/* ---------- Secciones ---------- */
.section { padding: 4rem 0; }
.band { background: var(--band); border-top: 1px solid rgba(23,52,77,0.6); border-bottom: 1px solid rgba(23,52,77,0.6); }
.section h2 { font-size: clamp(1.7rem, 1.3rem + 1.4vw, 2.1rem); font-weight: 900; }
.section h2 + .muted { margin-top: 1rem; }
.split { display: grid; gap: 1.5rem; grid-template-columns: 0.9fr 2.1fr; align-items: start; }
.split.wide { grid-template-columns: 0.8fr 1.2fr; gap: 2rem; }
.head { display: grid; gap: 0.75rem; max-width: 52rem; margin-bottom: 2rem; }
.head .muted { margin: 0; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.card { background: linear-gradient(180deg, rgba(10,27,43,0.92), rgba(6,18,29,0.92)); border: 1px solid var(--card-line); border-radius: var(--radius); }
.feature { display: grid; grid-template-rows: auto auto 1fr auto; padding: 1.25rem; transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease); }
.feature:hover { transform: translateY(-4px); border-color: rgba(40,167,255,0.5); }
.feature .ico { display: inline-flex; width: 3rem; height: 3rem; align-items: center; justify-content: center; margin-bottom: 1.25rem; border-radius: var(--radius-sm); background: rgba(40,167,255,0.1); color: var(--cyan); }
.feature .ico svg { width: 24px; height: 24px; }
.feature h3 { font-size: 1rem; font-weight: 700; }
.feature p { margin-top: 0.5rem; font-size: 0.9rem; line-height: 1.6; color: var(--muted); }
.feature .arrow { margin-top: 1.25rem; display: flex; justify-content: flex-end; color: var(--cyan); }
.feature .arrow svg { width: 18px; height: 18px; }

/* Fuentes: flujo de cinco pasos */
.flow { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1rem; margin: 0 0 1.5rem; padding: 0; list-style: none; text-align: center; }
.flow li { display: grid; justify-items: center; gap: 0.2rem; position: relative; }
.flow li + li::before { content: ""; position: absolute; left: calc(-50% + 1.6rem); top: 1.35rem; width: calc(100% - 3.2rem); height: 1px; background: linear-gradient(90deg, transparent, var(--line-2) 30%, var(--line-2) 70%, transparent); }
.ring { display: flex; width: 2.75rem; height: 2.75rem; align-items: center; justify-content: center; margin-bottom: 0.5rem; border-radius: 50%; border: 1px solid rgba(40,167,255,0.4); color: var(--cyan); background: var(--ink); position: relative; z-index: 1; }
.ring svg { width: 21px; height: 21px; }
.flow strong { font-size: 0.9rem; font-weight: 600; }
.flow small { font-size: 0.8rem; color: var(--muted); }
.sources { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0.75rem; padding: 1.25rem; }
.sources span { display: inline-flex; align-items: center; gap: 0.6rem; font-size: 0.9rem; color: var(--text-2); }
.sources svg { width: 18px; height: 18px; color: var(--cyan); flex: none; }

/* Contraparte */
.versus { display: grid; grid-template-columns: 1fr auto 1fr; gap: 1rem; align-items: center; }
.side { padding: 1.5rem; display: grid; gap: 1rem; }
.side.pro { border-color: rgba(40,167,255,0.4); }
.side.contra { background: rgba(76,5,25,0.15); border-color: var(--no-line); }
.side-title { font-size: 0.9rem; font-weight: 600; color: var(--cyan); }
.contra .side-title { color: var(--no); }
.side p { font-size: 0.925rem; line-height: 1.65; color: var(--text-2); }
.vs { font-weight: 900; text-align: center; }
.pill { display: inline-flex; justify-self: start; padding: 0.25rem 0.75rem; border-radius: 999px; font-size: 0.75rem; }
.pill.ok { background: var(--ok-bg); color: var(--ok); }
.pill.no { background: var(--no-bg); color: var(--no); }

/* Concepto de ejemplo */
.concept { padding: 1.5rem; display: grid; gap: 1rem; }
.concept-label { font-size: 0.7rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--cyan); }
.concept-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 1.5rem; }
.concept dl { margin: 0; display: grid; gap: 0.3rem; }
.concept dt { font-size: 0.8rem; color: var(--muted); }
.concept dd { margin: 0 0 0.8rem; font-size: 0.925rem; line-height: 1.6; color: var(--text-2); }
.concept dd ul { display: grid; gap: 0.2rem; }
.concept dd li { padding-left: 1rem; position: relative; }
.concept dd li::before { content: ""; position: absolute; left: 0; top: 0.65em; width: 0.35rem; height: 0.35rem; border-radius: 50%; background: var(--cyan); }
.confidence { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 0.75rem; font-size: 0.8rem; color: var(--muted); padding-top: 0.5rem; border-top: 1px solid rgba(23,52,77,0.7); }
.confidence .bar { height: 6px; border-radius: 999px; background: rgba(255,255,255,0.08); overflow: hidden; }
.confidence .bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--blue), var(--cyan)); }
.confidence strong { font-size: 1.1rem; color: var(--text); }
.concept-note { font-size: 0.8rem; color: var(--dim); }

/* Planes */
.head.left { margin-bottom: 2rem; }
.plan { padding: 1.5rem; display: grid; gap: 0.35rem; align-content: start; }
.plan.featured { border-color: rgba(40,167,255,0.7); box-shadow: var(--glow); }
.plan-name { font-size: 0.9rem; font-weight: 600; color: var(--cyan); }
.price { margin-top: 0.75rem; font-size: 1.9rem; font-weight: 900; letter-spacing: -0.02em; }
.price small { font-size: 0.9rem; font-weight: 600; color: var(--muted); }
.plan-desc { font-size: 0.9rem; color: var(--muted); }
.plan ul { margin-top: 1.25rem; display: grid; gap: 0.7rem; color: var(--text-2); font-size: 0.9rem; }
.plan li { padding-left: 1.5rem; position: relative; }
.plan li::before { content: ""; position: absolute; left: 0; top: 0.2em; width: 0.9rem; height: 0.9rem; border-radius: 50%; border: 1.5px solid var(--cyan); background: linear-gradient(-45deg, transparent 48%, var(--cyan) 48%, var(--cyan) 56%, transparent 56%) no-repeat 55% 50% / 55% 55%; }
.plan .btn { margin-top: 1.5rem; border-radius: var(--radius-sm); width: 100%; }
.fineprint { margin-top: 1.25rem; font-size: 0.8rem; color: var(--dim); }
.trust-title { margin-top: 3rem; font-size: 1.05rem; font-weight: 700; }
.trust-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; margin-top: 1rem; font-size: 0.875rem; color: var(--text-2); }
.trust-row span { display: inline-flex; align-items: center; gap: 0.6rem; }
.trust-row svg { width: 20px; height: 20px; color: var(--cyan); flex: none; }

/* ---------- Pie ---------- */
footer { border-top: 1px solid rgba(23,52,77,0.6); padding: 2rem 0 1.5rem; }
.foot { display: flex; align-items: center; justify-content: space-between; gap: 1.25rem; flex-wrap: wrap; }
.foot nav { display: flex; gap: 1.25rem; flex-wrap: wrap; font-size: 0.85rem; color: var(--text-2); }
.foot nav a:hover { color: var(--text); }
.country { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.8rem; color: var(--muted); }
.flag { width: 18px; height: 12px; border-radius: 2px; background: linear-gradient(180deg, #FCD116 0 50%, #003893 50% 75%, #CE1126 75%); }
.foot.small { margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid rgba(23,52,77,0.5); font-size: 0.75rem; color: var(--dim); }
.foot.small a { color: var(--muted); }
.foot.small a:hover { color: var(--text); }

/* ---------- Botón flotante y aparición ---------- */
.chat-fab { position: fixed; right: clamp(1rem, 3vw, 2rem); bottom: clamp(1rem, 3vw, 2rem); z-index: 30; display: inline-flex; align-items: center; gap: 0.6rem; padding: 0.85rem 1.1rem; background: var(--blue); color: #fff; border: 0; border-radius: 999px; cursor: pointer; font: inherit; font-size: 0.9rem; font-weight: 600; box-shadow: 0 18px 40px -16px rgba(0,108,255,0.9); }
.chat-fab svg { width: 18px; height: 18px; }
.reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0.001; transform: translateY(12px); transition: opacity 900ms var(--ease), transform 900ms var(--ease); }
  .reveal.in { opacity: 1; transform: none; }
}
.static .reveal { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1023px) {
  .hero { min-height: 0; }
  .hero-art { top: 0; bottom: auto; width: 100%; height: 22rem; }
  .hero-art img { -webkit-mask-image: linear-gradient(to top, transparent 0%, #000 55%); mask-image: linear-gradient(to top, transparent 0%, #000 55%); object-position: 60% 20%; }
  .hero-art::after { background: linear-gradient(180deg, transparent 40%, var(--ink) 100%); }
  .hero-inner { padding-top: 15rem; }
  .split, .split.wide { grid-template-columns: 1fr; }
  .flow { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0.5rem; }
  .sources, .trust-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .versus { grid-template-columns: 1fr; }
  .concept-grid { grid-template-columns: 1fr; }
}
@media (max-width: 1100px) {
  .menu-toggle { display: inline-flex; }
  .bar nav { position: absolute; top: 100%; left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; gap: 0.6rem; padding: 1rem var(--gutter) 1.25rem; background: rgba(5,11,20,0.97); border-bottom: 1px solid var(--line); }
  .bar nav.open { display: flex; }
  .bar nav > a:not(.btn) { display: block; padding: 0.4rem 0; }
}
@media (max-width: 860px) {
  .grid-3 { grid-template-columns: 1fr; }
  .flow { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem 0.5rem; }
  .flow li + li::before { display: none; }
}
@media (max-width: 640px) {
  .hero-inner { padding-top: 12rem; }
  .hero-art { height: 18rem; }
  .composer-row { flex-wrap: wrap; }
  .composer-row .btn-primary { width: 100%; margin-left: 0; }
  .attach-btn { flex: 1; justify-content: center; }
  .auth-row { grid-template-columns: 1fr; }
  .msg { grid-template-columns: 1fr; gap: 0.2rem; }
  .sources, .trust-row { grid-template-columns: 1fr; }
  .chat-fab span { display: none; }
  .chat-fab { padding: 0.85rem; }
  .foot { justify-content: center; text-align: center; }
}