/* ============================================
   Academic Planner AI — Estilos
   ============================================ */

:root {
  --color-primary: #1E3A8A;
  --color-cta: #2563EB;
  --color-text: #334155;
  --color-text-muted: #64748B;
  --color-bg: #F8FAFC;
  --color-bg-alt: #EFF4FB;
  --color-card: #FFFFFF;
  --color-success: #10B981;
  --color-border: #E2E8F0;
  --color-accent: #E8EFFC;

  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.10);

  --container-width: 1180px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ============== BOTONES ============== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff;
  transition: transform 0.2s cubic-bezier(0.21, 0.47, 0.32, 0.98), box-shadow 0.25s ease, background-color 0.2s ease;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
}

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

.btn--cta {
  background: var(--color-cta);
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.25);
}

.btn--cta:hover {
  background: #1d4fd1;
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.35);
}

.btn--glow {
  position: relative;
}

.btn--glow::after {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: inherit;
  background: var(--color-cta);
  opacity: 0.5;
  z-index: -1;
  animation: btn-pulse 2.4s ease-out infinite;
}

@keyframes btn-pulse {
  0% { opacity: 0.45; transform: scale(1); }
  70% { opacity: 0; transform: scale(1.12); }
  100% { opacity: 0; transform: scale(1.12); }
}

.btn--outline {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn--outline:hover {
  background: var(--color-accent);
}

.btn--rounded {
  border-radius: var(--radius-pill);
}

.btn--lg {
  padding: 14px 28px;
  font-size: 1rem;
}

.btn--block {
  width: 100%;
}

.btn[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
  background: #94A3B8;
  box-shadow: none;
}

.btn[disabled]:hover {
  transform: none;
}

.btn--danger {
  background: #EF4444;
  color: #fff;
  box-shadow: none;
}

.btn--danger:hover {
  background: #DC2626;
  transform: translateY(-1px);
}

/* ============== BADGES ============== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  color: #fff;
}

.badge--pill {
  background: var(--color-card);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.badge--pill svg {
  color: var(--color-success);
}

.badge--secondary {
  background: var(--color-accent);
  color: var(--color-primary);
}

/* ============== HEADER ============== */

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(248, 250, 252, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff;
  flex-shrink: 0;
}

.logo__text {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.logo__text span {
  color: var(--color-primary);
}

/* ============== SECTION HEAD ============== */

.section-head {
  max-width: 640px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-head h2 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.section-head p {
  margin-top: 14px;
  font-size: 1.1rem;
  color: var(--color-text-muted);
}

/* ============== HERO ============== */

.hero {
  position: relative;
  overflow: hidden;
  padding: 100px 0 110px;
  text-align: center;
}

.hero__glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 1000px;
  height: 600px;
  background: radial-gradient(ellipse 60% 50% at 50% 30%, rgba(37, 99, 235, 0.14), transparent 70%);
  z-index: 0;
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.hero__title {
  font-size: clamp(2.3rem, 5.2vw, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.12;
  color: var(--color-text);
  margin-top: 26px;
}

.hero__highlight {
  color: var(--color-cta);
  background: linear-gradient(90deg, var(--color-primary), var(--color-cta));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__subtitle {
  margin-top: 22px;
  font-size: 1.15rem;
  line-height: 1.65;
  color: var(--color-text-muted);
}

.hero__actions {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.hero__note {
  margin-top: 18px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  opacity: 0.9;
}

.hero__note svg {
  color: var(--color-success);
}

/* ============== ASÍ FUNCIONA (PROCESS) ============== */

.process {
  padding: 100px 0;
  overflow: hidden;
}

.process__head {
  max-width: 640px;
  margin: 0 auto 64px;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-cta);
  margin-bottom: 14px;
}

.process__head h2 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.process__head p {
  margin-top: 14px;
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--color-text-muted);
}

.process__track {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  margin: 0 -24px;
  padding: 0 24px;
}

.process__track::-webkit-scrollbar {
  display: none;
}

.process__list {
  display: flex;
  align-items: stretch;
  gap: 0;
}

.process__card {
  flex: 1 1 0;
  min-width: 0;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s cubic-bezier(0.21, 0.47, 0.32, 0.98), box-shadow 0.3s ease, border-color 0.3s ease;
}

.process__card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.process__num {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-border);
}

.process__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-top: 14px;
  border-radius: var(--radius-md);
  background: var(--color-accent);
  color: var(--color-primary);
  transition: background-color 0.3s ease, color 0.3s ease, transform 0.3s ease;
}

.process__card:hover .process__icon {
  background: linear-gradient(135deg, var(--color-primary), var(--color-cta));
  color: #fff;
  transform: scale(1.08) rotate(-4deg);
}

.process__card h3 {
  margin-top: 18px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}

.process__card p {
  margin-top: 8px;
  font-size: 0.86rem;
  line-height: 1.55;
  color: var(--color-text-muted);
}

.process__arrow {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  margin-top: 70px;
  color: var(--color-border);
}

.process__credit {
  display: flex;
  align-items: center;
  gap: 18px;
  max-width: 640px;
  margin: 56px auto 0;
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  padding: 24px 30px;
  box-shadow: var(--shadow-lg);
}

.process__credit-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  flex-shrink: 0;
  font-size: 1.4rem;
  background: rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
}

.process__credit-title {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
}

.process__credit-text {
  margin-top: 4px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.75);
}

/* ============== DEMO ============== */

.demo {
  background: var(--color-bg-alt);
  padding: 100px 0;
}

.demo__panel {
  display: grid;
  grid-template-columns: 300px 1fr;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.demo__sidebar {
  background: rgba(241, 245, 249, 0.6);
  border-right: 1px solid var(--color-border);
  padding: 22px;
}

.demo__sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.demo__sessions {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.demo__session {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 0.88rem;
  color: var(--color-text);
  transition: background-color 0.2s ease;
}

.demo__session:hover {
  background: var(--color-accent);
}

.demo__session.is-active {
  background: var(--color-primary);
  color: #fff;
}

.demo__session--muted {
  color: var(--color-text-muted);
  cursor: default;
}

.demo__session--muted:hover {
  background: transparent;
}

.demo__session-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(148, 163, 184, 0.2);
  font-size: 0.65rem;
  font-weight: 700;
  flex-shrink: 0;
}

.demo__session.is-active .demo__session-num {
  background: rgba(255, 255, 255, 0.2);
}

.demo__content {
  padding: 36px 40px;
}

.demo__session-title {
  margin-top: 16px;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text);
}

.demo__detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 26px;
}

.demo__detail-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
}

.demo__detail-card-head {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

.demo__detail-card-head svg {
  color: var(--color-primary);
}

.demo__detail-card p {
  margin-top: 8px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

.demo__activities {
  margin-top: 18px;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
}

.demo__activities p {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

.demo__activities ul {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.demo__activities li {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.demo__footer {
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.demo__footer p {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.demo__footer p svg {
  color: var(--color-primary);
  flex-shrink: 0;
}

/* ============== BENEFICIOS ============== */

.benefits {
  padding: 100px 0;
}

.benefits__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.benefits__card {
  position: relative;
  background: var(--color-card);
  padding: 34px;
  transition: background-color 0.25s ease, transform 0.25s ease;
}

.benefits__card:hover {
  background: var(--color-bg-alt);
  transform: translateY(-3px);
}

.benefits__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-accent);
  color: var(--color-primary);
  transition: background-color 0.25s ease, color 0.25s ease, transform 0.25s ease;
}

.benefits__card:hover .benefits__icon {
  background: var(--color-primary);
  color: #fff;
  transform: scale(1.08);
}

.benefits__card h3 {
  margin-top: 18px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}

.benefits__card p {
  margin-top: 8px;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--color-text-muted);
}

/* ============== CASOS DE USO ============== */

.usecases {
  background: var(--color-bg-alt);
  padding: 100px 0;
}

.usecases__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.usecases__card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 30px 18px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.usecases__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.usecases__emoji {
  font-size: 1.9rem;
}

.usecases__card span:last-child {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text);
}

/* ============== MOTOR DE INTELIGENCIA ============== */

.intelligence {
  padding: 100px 0;
  background: var(--bg-alt, #F8FAFC);
}

.intelligence__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 56px;
}

.intelligence__card {
  background: var(--color-white, #fff);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 28px 24px;
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.intelligence__card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.08);
}

.intelligence__icon {
  font-size: 2rem;
  margin-bottom: 14px;
  line-height: 1;
}

.intelligence__name {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--color-heading);
}

.intelligence__desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0;
}

/* Layout: demo + grid side by side */
.intel-layout {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 40px;
  align-items: start;
  margin-top: 56px;
}

.intel-demo {
  position: sticky;
  top: 100px;
}

/* Reset grid margin when inside intel-layout */
.intel-layout .intelligence__grid {
  margin-top: 0;
  grid-template-columns: repeat(2, 1fr);
}

/* Landing step entrance animation */
@keyframes intel-step-in {
  from { opacity: 0; transform: translateX(-8px); }
  to   { opacity: 1; transform: translateX(0); }
}

.intel-step {
  animation: intel-step-in 0.4s ease both;
  animation-delay: var(--d, 0s);
}

/* Cycle active state on landing demo with CSS only */
@keyframes aic-ld-cycle {
  0%,  11% { opacity: 1; }
  14%, 100% { opacity: 0.38; }
}

@media (max-width: 1200px) {
  .intel-layout {
    grid-template-columns: 360px 1fr;
    gap: 28px;
  }
}

@media (max-width: 960px) {
  .intel-layout {
    grid-template-columns: 1fr;
  }
  .intel-demo {
    position: static;
    max-width: 460px;
    margin: 0 auto;
  }
  .intel-layout .intelligence__grid {
    grid-template-columns: repeat(2, 1fr);
    margin-top: 0;
  }
}

@media (max-width: 1100px) {
  .intelligence__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .intelligence__grid {
    grid-template-columns: 1fr;
  }
  .intel-layout .intelligence__grid {
    grid-template-columns: 1fr;
  }
}

/* ============== PRECIOS ============== */

.pricing {
  padding: 100px 0;
}

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 820px;
  margin: 0 auto;
}

.pricing__card {
  position: relative;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.pricing__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.pricing__card--popular {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-lg);
}

.pricing__card--popular:hover {
  box-shadow: 0 20px 46px rgba(30, 58, 138, 0.28);
}

.pricing__tag {
  position: absolute;
  top: -14px;
  right: 28px;
  background: var(--color-cta);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
}

.pricing__card h3 {
  font-size: 1.1rem;
  font-weight: 600;
}

.pricing__price {
  margin-top: 14px;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.pricing__price span {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.pricing__price small {
  font-size: 0.9rem;
  opacity: 0.75;
}

.pricing__features {
  margin-top: 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pricing__features li {
  position: relative;
  padding-left: 26px;
  font-size: 0.9rem;
  line-height: 1.4;
}

.pricing__features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 2px;
  width: 16px;
  height: 16px;
  background-color: var(--color-success);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center / contain no-repeat;
}

.pricing__card .btn {
  margin-top: 30px;
}

/* ============== FAQ ============== */

.faq {
  background: var(--color-bg-alt);
  padding: 100px 0;
}

.faq__list {
  max-width: 680px;
  margin: 0 auto;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 8px 28px;
  box-shadow: var(--shadow-sm);
}

.faq__item {
  border-bottom: 1px solid var(--color-border);
}

.faq__item:last-child {
  border-bottom: none;
}

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: none;
  border: none;
  text-align: left;
  padding: 20px 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  transition: color 0.2s ease;
}

.faq__question:hover {
  color: var(--color-primary);
}

.faq__question svg {
  flex-shrink: 0;
  color: var(--color-text-muted);
  transition: transform 0.25s ease;
}

.faq__item.is-open .faq__question {
  color: var(--color-primary);
}

.faq__item.is-open .faq__question svg {
  transform: rotate(180deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq__answer p {
  padding-bottom: 20px;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--color-text-muted);
}

/* ============== CTA FINAL ============== */

.final-cta {
  position: relative;
  overflow: hidden;
  background: var(--color-primary);
  padding: 100px 0;
  text-align: center;
  color: #fff;
}

.final-cta__glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 60% at 50% 0%, rgba(37, 99, 235, 0.4), transparent 70%);
  pointer-events: none;
}

.final-cta__inner {
  position: relative;
  z-index: 1;
  max-width: 600px;
}

.final-cta h2 {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.final-cta p {
  margin-top: 16px;
  font-size: 1.08rem;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.6;
}

.final-cta .btn {
  margin-top: 32px;
}

/* ============== FOOTER ============== */

.footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: 44px 0 28px;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer__brand-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
}

.footer__brand-tag {
  margin-top: 2px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.footer__nav {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}

.footer__nav a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

.footer__nav a:hover {
  color: var(--color-text);
}

.footer__copy {
  margin-top: 32px;
  text-align: center;
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

/* ============== MODAL ============== */

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal.is-open {
  display: flex;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(2px);
}

.modal__panel {
  position: relative;
  z-index: 1;
  background: var(--color-card);
  border-radius: var(--radius-lg);
  max-width: 440px;
  width: 100%;
  padding: 36px;
  box-shadow: var(--shadow-lg);
  animation: modal-in 0.25s ease;
}

@keyframes modal-in {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal__close {
  position: absolute;
  top: 18px;
  right: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.modal__close:hover {
  background: var(--color-accent);
  color: var(--color-text);
}

.modal__panel h3 {
  font-size: 1.25rem;
  font-weight: 700;
  padding-right: 30px;
}

.modal__panel p {
  margin-top: 12px;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--color-text-muted);
}

.modal__panel .btn {
  margin-top: 22px;
}

/* ============== ANIMACIONES ============== */

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============== RESPONSIVE ============== */

@media (max-width: 1024px) {
  .benefits__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .usecases__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .demo__panel {
    grid-template-columns: 240px 1fr;
  }

  .process__list {
    flex-wrap: wrap;
    gap: 22px;
  }

  .process__card {
    flex: 1 1 calc(33.333% - 15px);
  }

  .process__arrow {
    display: none;
  }
}

@media (max-width: 767px) {
  .container {
    padding: 0 20px;
  }

  .hero {
    padding: 72px 0 80px;
  }

  .section-head h2 {
    font-size: 1.65rem;
  }

  .benefits__grid {
    grid-template-columns: 1fr;
  }

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

  .pricing__grid {
    grid-template-columns: 1fr;
  }

  .demo__panel {
    grid-template-columns: 1fr;
  }

  .demo__sidebar {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }

  .demo__content {
    padding: 28px 24px;
  }

  .demo__detail-grid {
    grid-template-columns: 1fr;
  }

  .process__head {
    margin-bottom: 44px;
  }

  .process__track {
    margin: 0 -20px;
    padding: 0 20px;
  }

  .process__list {
    flex-wrap: nowrap;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 16px;
    padding-bottom: 8px;
  }

  .process__card {
    flex: 0 0 78%;
    scroll-snap-align: start;
  }

  .process__credit {
    flex-direction: column;
    text-align: center;
    margin-top: 40px;
  }

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

  .demo__footer .btn {
    width: 100%;
  }

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }

  .footer__nav {
    justify-content: center;
  }

  .logo__text {
    font-size: 0.92rem;
    white-space: nowrap;
  }
}

@media (max-width: 480px) {
  .hero__actions {
    flex-direction: column;
    width: 100%;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .usecases__grid {
    grid-template-columns: 1fr 1fr;
  }

  .process__card {
    flex: 0 0 86%;
  }

  .header__inner {
    height: 64px;
  }

  .logo__icon {
    width: 34px;
    height: 34px;
  }

  .btn--outline.btn--rounded {
    padding: 10px 16px;
    font-size: 0.85rem;
  }
}