/* ----------------------------------- PALETA DE COLORES PRINCIPAL ----------------------------------- */
:root {
  --bg-main: #101010;
  --bg-secondary: #141414;
  --bg-tertiary: #181818;
  --text-main: #EBEBEB;
  --text-secondary: #A8A8A8;
  --text-muted: #555555;
  --text-title-task: #E0E0E0;
  --border-main: #2A2A2A;
  --border-panel: #3B3B3B;
  --btn-func-bg: #2B2B2B;
  --btn-func-hover: #262626;
  --btn-func-click: #0F0F0F;
  --font-family: 'Poppins', sans-serif;
  --font-size-base: 16px;
  --font-weight-regular: 400;
  --font-weight-semibold: 600;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 10px;
}

/* ----------------------------------- ESTILOS BASE | PRINCIPALES ----------------------------------- */
* {
  box-sizing: border-box;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  font-size: var(--font-size-base);
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: var(--text-main);
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

h1, h2, h3 {
  font-weight: var(--font-weight-semibold);
  color: var(--text-title-task);
  margin-bottom: 0.7em;
  line-height: 1.2;
}

h1 { font-size: 3.5em; }
h2 { font-size: 2.2em; }
h3 { font-size: 1.5em; }

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 0;
}

section {
  padding: 120px 0;
  border-bottom: 1px solid var(--border-main);
  position: relative;
  overflow: hidden;
}

section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.4;
}

section > * {
  position: relative;
  z-index: 1;
}

/* ----------------------------------- FONDOS DINÁMICOS ----------------------------------- */
.hero::before {
  background: radial-gradient(ellipse at center, rgba(85, 85, 85, 0.12) 0%, transparent 60%);
}

.feature-section::before {
  background-image: radial-gradient(circle, rgba(85, 85, 85, 0.15) 1px, transparent 1px);
  background-size: 24px 24px;
}

.feature-section.alt-bg::before {
  background: radial-gradient(ellipse at center, rgba(85, 85, 85, 0.15) 0%, transparent 70%);
}

.final-cta::before {
  background: linear-gradient(135deg, rgba(85, 85, 85, 0.06) 0%, rgba(42, 42, 42, 0.12) 100%);
}

/* ----------------------------------- UTILIDADES ----------------------------------- */
.text-center { text-align: center; }
.max-width-md { max-width: 720px; margin: 0 auto; }
.max-width-lg { max-width: 1000px; margin: 0 auto; }

/* Scrollbar Premium */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border-panel);
  border-radius: 4px;
  transition: background 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Material Icons Optimizados */
.material-icons-round {
  font-family: 'Material Icons Round';
  font-weight: normal;
  font-style: normal;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
  line-height: 1;
  text-transform: none;
  letter-spacing: normal;
  white-space: nowrap;
  direction: ltr;
}

.icon-small { font-size: 1.3em; line-height: 1; }
.icon-large { font-size: 2.2em; line-height: 1; margin-bottom: 0.3em; }

/* ----------------------------------- SISTEMA DE BOTONES PREMIUM ----------------------------------- */
.btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 32px;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 0.95em;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--btn-func-bg) 0%, var(--btn-func-hover) 100%);
  color: var(--text-main);
  border-color: var(--border-panel);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
  transition: left 0.6s ease;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--btn-func-hover) 0%, var(--btn-func-click) 100%);
  border-color: var(--text-muted);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  transform: translateY(-3px);
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:active {
  background-color: var(--btn-func-click);
  transform: translateY(-1px) scale(0.98);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-secondary);
  border-color: var(--border-panel);
}

.btn-secondary:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--text-muted);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* ----------------------------------- ANIMACIONES FLUIDAS ----------------------------------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.animate-up { animation: fadeInUp 0.8s ease-out forwards; }
.animate-scale { animation: fadeInScale 0.7s ease-out forwards; }

/* ----------------------------------- ESTILOS | HEADER / NAVBAR ----------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(16, 16, 16, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-main);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  max-width: 1300px;
  margin: 0 auto;
  width: 92%;
}

/* ---------------- LOGO ---------------- */
.logo a {
  font-size: 1.4em;
  font-weight: var(--font-weight-semibold);
  color: var(--text-title-task);
  transition: color 0.3s ease;
  letter-spacing: -0.02em;
}

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

/* ---------------- NAVEGACIÓN ---------------- */
.main-nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 24px); /* Espaciado dinámico según ancho */
  flex-wrap: wrap; /* Evita desbordamientos */
  justify-content: center;
  margin: 0;
  padding: 0;
}

.main-nav a {
  color: var(--text-secondary);
  font-size: 0.93em;
  font-weight: var(--font-weight-regular);
  position: relative;
  padding: 6px 0;
  transition: color 0.3s ease;
  white-space: nowrap;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--text-main);
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.main-nav a:hover::after {
  width: 100%;
}

/* ----------------------------------- HERO SECTION IMPACTANTE ----------------------------------- */
.hero {
  padding-top: 160px;
  padding-bottom: 140px;
  position: relative;
  overflow: hidden;
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-content h1 {
  font-size: clamp(2.5em, 6vw, 4em);
  line-height: 1.1;
  margin-bottom: 32px;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--text-title-task) 0%, var(--text-main) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1.1em, 2.5vw, 1.3em);
  color: var(--text-secondary);
  margin-bottom: 50px;
  line-height: 1.7;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* ----------------------------------- SECCIONES DE FEATURES ----------------------------------- */
.feature-section {
  background-color: var(--bg-main);
}

.feature-section.alt-bg {
  background-color: var(--bg-secondary);
}

.section-header {
  text-align: center;
  margin-bottom: 70px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.section-header-title-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 0;
}

.section-header .material-icons-round {
  color: var(--text-main);
  font-size: 2.2em;
  line-height: 1;
}

.section-header-title-wrapper h2 {
    margin-bottom: 0; 
}

.section-header h2 { 
    font-size: 2.2em; 
}

.section-description {
  font-size: 1.15em;
  color: var(--text-secondary);
  max-width: 750px;
  margin: 0 auto;
  line-height: 1.8;
}

.feature-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 36px;
  display: grid;
  max-width: 1200px;
  margin: 0 auto 60px;
  justify-content: center; /* CENTRADO DE GRID */
}

.feature-card {
  background: linear-gradient(145deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-panel);
  padding: 36px 32px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--text-main), var(--text-secondary), var(--border-panel));
  transform: scaleX(0);
  transition: transform 0.4s ease;
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-card:hover {
  transform: translateY(-12px) rotateX(2deg);
  border-color: var(--text-muted);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.6);
  background: linear-gradient(145deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
}

.feature-card h3 {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
  font-size: 1.4em;
}

.feature-card .material-icons-round {
  color: var(--text-main);
  font-size: 1.8em;
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.75;
  flex-grow: 1;
}

/* ----------------------------------- LAYOUT DOS COLUMNAS ----------------------------------- */
.two-column-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  max-width: 1200px;
  margin: 0 auto 60px;
}

.column-content {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.feature-list, .benefit-list {
  list-style: none;
}

.feature-list li, .benefit-list li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border-panel);
  transition: all 0.3s ease;
}

.feature-list li:hover, .benefit-list li:hover {
  padding-left: 8px;
  border-color: var(--text-main);
}

.feature-list span, .benefit-list .material-icons-round {
  font-size: 1.5em;
  color: var(--text-main);
  margin-top: 3px;
  flex-shrink: 0;
}

.benefit-list strong {
  color: var(--text-title-task);
  display: block;
  margin-bottom: 6px;
  font-size: 1.05em;
}

/* ----------------------------------- PANEL SHOWCASE ----------------------------------- */
.panel-showcase {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
  margin: 40px 0;
}

.panel-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px 32px;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-panel);
  font-weight: var(--font-weight-semibold);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.panel-item:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.5);
  border-color: var(--text-main);
}

.panel-indicator {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

/* ----------------------------------- TASK FEATURES GRID ----------------------------------- */
.task-features-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 36px;
  display: grid;
  max-width: 1200px;
  margin: 0 auto 60px;
  justify-content: center; /* CENTRADO DE GRID */
}

.task-property {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 32px;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-main);
  transition: all 0.4s ease;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.3);
}

.task-property:hover {
  transform: translateY(-8px);
  border-color: var(--text-main);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.task-property .material-icons-round {
  font-size: 2.2em;
  margin-top: 2px;
  flex-shrink: 0;
  color: var(--text-main);
}

.task-property h4 {
  margin-bottom: 12px;
  font-size: 1.15em;
}

/* ----------------------------------- OPERATIONS GRID ----------------------------------- */
.operations-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr));
  gap: 28px;
  display: grid;
  max-width: 900px;
  margin: 0 auto 60px;
  justify-content: center; /* CENTRADO DE GRID */
}

.operation-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  padding: 36px 24px;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-radius: var(--radius-lg);
  border: 2px solid var(--border-panel);
  text-align: center;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  height: 100%;
}

.operation-card:hover {
  background: linear-gradient(135deg, var(--text-main) 0%, var(--text-secondary) 100%);
  color: var(--bg-main);
  border-color: var(--text-main);
  transform: translateY(-10px) scale(1.05);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.6);
}

.operation-card:hover .material-icons-round {
  transform: scale(1.1) rotate(10deg);
}

/* ----------------------------------- USE CASES ----------------------------------- */
.use-cases, .use-cases-files {
  margin-top: 70px;
}

.use-case-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
  max-width: 700px;
  margin: 0 auto 60px;
}

.use-case-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 36px;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-panel);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  transition: all 0.4s ease;
}

.use-case-item:hover {
  transform: translateX(8px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
}

.use-case-item .material-icons-round {
  font-size: 2.4em;
  margin-top: 4px;
  flex-shrink: 0;
  color: var(--text-main);
}

.use-case-item strong {
  display: block;
  margin-bottom: 10px;
  color: var(--text-title-task);
  font-size: 1.15em;
}

.use-case-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
  margin-top: 40px;
  justify-content: center; /* CENTRADO DE GRID */
}

.use-case-card {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 36px 24px;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-panel);
  transition: all 0.4s ease;
  text-align: center;
}

.use-case-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.use-case-card .material-icons-round {
  font-size: 3em;
  color: var(--text-main);
}

/* ----------------------------------- FILE FORMATS ----------------------------------- */
.format-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  max-width: 900px;
  margin: 0 auto 60px;
  justify-content: center; /* CENTRADO DE GRID */
}

.format-category {
  text-align: center;
}

.format-category .material-icons-round {
  font-size: 3.5em;
  display: block;
  margin-bottom: 24px;
  color: var(--text-main);
}

.format-category ul {
  list-style: none;
  padding: 0;
}

.format-category li {
  padding: 14px 0;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-panel);
  font-size: 1.05em;
  transition: color 0.3s ease;
}

.format-category li:hover {
  color: var(--text-main);
  padding-left: 12px;
}

.format-category li:last-child {
  border-bottom: none;
}

/* ----------------------------------- SEARCH CRITERIA ----------------------------------- */
.criteria-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 32px;
  display: grid;
  max-width: 1100px;
  margin: 0 auto 60px;
  justify-content: center; /* CENTRADO DE GRID */
}

.criteria-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 32px;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-main);
  transition: all 0.4s ease;
}

.criteria-item:hover {
  transform: translateY(-6px);
  border-color: var(--text-main);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.criteria-item .material-icons-round {
  font-size: 2.2em;
  margin-top: 4px;
  flex-shrink: 0;
  color: var(--text-main);
}

/* ----------------------------------- SPECIAL FEATURES ----------------------------------- */
.special-features {
  margin-top: 70px;
}

.special-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 32px;
  display: grid;
  max-width: 1100px;
  margin: 0 auto 60px;
  justify-content: center; /* CENTRADO DE GRID */
}

.special-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 18px;
  padding: 32px;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-main);
  transition: all 0.4s ease;
}

.special-card:hover {
  transform: translateY(-6px);
  border-color: var(--text-main);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.special-card .material-icons-round {
  font-size: 2.2em;
  color: var(--text-main);
  flex-shrink: 0;
}

.special-card h4 {
  font-size: 1.15em;
  margin-bottom: 0;
}

.special-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ----------------------------------- CALENDAR FEATURES ----------------------------------- */
.calendar-feature-list {
  max-width: 950px;
  margin: 0 auto 60px;
}

.calendar-feature {
  display: flex;
  align-items: flex-start;
  gap: 28px;
  padding: 36px 0;
  border-bottom: 1px solid var(--border-panel);
  transition: all 0.3s ease;
}

.calendar-feature:hover {
  padding-left: 12px;
  border-color: var(--text-main);
}

.calendar-feature:last-child {
  border-bottom: none;
}

.calendar-feature .material-icons-round {
  font-size: 2.2em;
  margin-top: 4px;
  flex-shrink: 0;
  color: var(--text-main);
}

/* ----------------------------------- BENEFITS CARDS ----------------------------------- */
.benefit-cards {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: 36px;
  display: grid;
  max-width: 1200px;
  margin: 70px auto 0;
  justify-content: center; /* CENTRADO DE GRID */
}

.benefit-card {
  background: linear-gradient(145deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-panel);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
  height: 100%;
}

.benefit-card:hover {
  transform: translateY(-12px);
  border-color: var(--text-main);
  box-shadow: 0 32px 64px rgba(0, 0, 0, 0.6);
}

.benefit-card .material-icons-round {
  font-size: 2.8em;
  color: var(--text-main);
}

.benefit-card h4 {
  font-size: 1.3em;
  margin-bottom: 8px;
}

/* ----------------------------------- REMINDER FEATURES ----------------------------------- */
.reminder-features-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 36px;
  display: grid;
  max-width: 1200px;
  margin: 70px auto 0;
  justify-content: center; /* CENTRADO DE GRID */
}

.reminder-feature {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-radius: var(--radius-lg);
  border: 2px solid var(--border-panel);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  text-align: center;
  transition: all 0.4s ease;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.reminder-feature:hover {
  transform: translateY(-10px);
  border-color: var(--text-main);
  box-shadow: 0 32px 64px rgba(0, 0, 0, 0.6);
}

.reminder-feature .material-icons-round {
  font-size: 3.2em;
  color: var(--text-main);
}

.reminder-feature h4 {
  font-size: 1.25em;
}

/* ----------------------------------- BACKUP ACTIONS ----------------------------------- */
.backup-actions {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 350px), 1fr));
  gap: 50px;
  display: grid;
  max-width: 800px;
  margin: 70px auto 0;
  justify-content: center; /* CENTRADO DE GRID */
}

.backup-action-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  padding: 50px 36px;
  background: linear-gradient(145deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-radius: var(--radius-lg);
  border: 2px solid var(--border-panel);
  text-align: center;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
}

.backup-action-card:hover {
  transform: translateY(-16px);
  border-color: var(--text-main);
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.7);
}

.backup-action-card .material-icons-round {
  font-size: 4em;
  color: var(--text-main);
}

/* ----------------------------------- BACKUP TECH GRID ----------------------------------- */
.backup-tech-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 32px;
  display: grid;
  max-width: 1100px;
  margin: 70px auto 0;
  justify-content: center; /* CENTRADO DE GRID */
}

.tech-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 36px;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-main);
  transition: all 0.4s ease;
}

.tech-item:hover {
  transform: translateY(-6px);
  border-color: var(--text-main);
}

.tech-item .material-icons-round {
  font-size: 2.2em;
  margin-top: 4px;
  flex-shrink: 0;
  color: var(--text-main);
}

/* ----------------------------------- FEATURE LIST HORIZONTAL ----------------------------------- */
.feature-list-horizontal {
  display: flex;
  flex-direction: column;
  gap: 28px;
  max-width: 800px;
  margin: 70px auto 0;
}

.feature-item-horizontal {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 36px;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-radius: var(--radius-lg);
  border-left: 5px solid var(--text-main);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  transition: all 0.4s ease;
}

.feature-item-horizontal:hover {
  transform: translateX(8px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
  border-left-color: var(--text-main);
}

.feature-item-horizontal .material-icons-round {
  font-size: 2em;
  margin-top: 4px;
  flex-shrink: 0;
  color: var(--text-main);
}

/* ---------------- BOTÓN (CTA) ---------------- */
.main-nav a.nav-cta {
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  background-color: var(--btn-func-bg);
  border: 2px solid var(--border-panel);
  color: var(--text-main);
  font-weight: var(--font-weight-medium);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.main-nav a.nav-cta::after {
  display: none;
}

.main-nav a.nav-cta:hover {
  background-color: var(--btn-func-hover);
  border-color: #505050;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* ----------------------------------- ESTILOS | CTA FINAL ----------------------------------- */
.final-cta {
  padding-top: 120px;
  padding-bottom: 120px;
  background-color: var(--bg-main);
}

.final-cta-inner {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, rgba(20, 20, 20, 0.8) 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-panel);
  padding: 70px 50px;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  position: relative;
  overflow: hidden;
}

.final-cta-inner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at top, rgba(255, 255, 255, 0.03), transparent 60%);
  pointer-events: none;
}

.final-cta-inner h2 {
  font-size: 2.5em;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.final-cta-inner p {
  margin-bottom: 36px;
  font-size: 1.1em;
  color: var(--text-secondary);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
}

.final-cta-inner .btn-primary {
  min-width: 250px;
  padding: 16px 40px;
  font-size: 1.05em;
  position: relative;
  z-index: 1;
}

.final-cta-inner .small-text {
  margin-top: 18px;
  font-size: 0.85em;
  color: var(--text-muted);
  position: relative;
  z-index: 1;
}

/* ----------------------------------- ESTILOS | FOOTER ----------------------------------- */
.site-footer {
  padding: 0px 0;
  border-top: 1px solid var(--border-main);
  color: var(--text-secondary);
  font-size: 0.9em;
  background-color: var(--bg-main);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
  width: 90%;
}

.footer-inner nav {
  display: flex;
  gap: 26px;
  flex-wrap: wrap;
}

.site-footer a {
  color: var(--text-secondary);
  transition: color 0.3s ease;
}

.site-footer a:hover {
  color: var(--text-main);
}

/* ----------------------------------- RESPONSIVE DESIGN ----------------------------------- */
@media (max-width: 1100px) {
  .main-nav ul {
    gap: 20px;
  }

  .two-column-layout {
    grid-template-columns: 1fr;
    gap: 60px;
  }

  .backup-actions {
    grid-template-columns: 1fr;
  }

  .format-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 900px) {
  .hero {
    padding-top: 120px;
    padding-bottom: 100px;
  }

  section {
    padding: 100px 0;
  }
  
  .feature-grid, .task-features-grid, .criteria-grid, .special-grid, 
  .benefit-cards, .reminder-features-grid, .backup-tech-grid {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); 
    gap: 32px;
  }

  .cta-content {
    padding: 60px 40px;
  }
}

@media (max-width: 850px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 0;
    gap: 16px;
  }

  .main-nav ul {
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 16px 24px;
    width: 100%;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 30px 0;
  }

  .operations-grid {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 160px), 1fr));
  }
  
  .final-cta {
    padding-top: 80px;
    padding-bottom: 80px;
  }
}

@media (max-width: 600px) {
  h1 {
    font-size: 2.2em;
  }

  h2 {
    font-size: 1.8em;
  }

  h3 {
    font-size: 1.3em;
  }

  section {
    padding: 80px 0;
  }

  .hero {
    padding-top: 90px;
    padding-bottom: 70px;
  }

  .feature-grid, .task-features-grid, .criteria-grid, .special-grid, 
  .benefit-cards, .reminder-features-grid, .operations-grid, .backup-tech-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .backup-actions {
      grid-template-columns: 1fr;
  }

  .cta-buttons {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

  .cta-buttons .btn-primary,
  .cta-buttons .btn-secondary {
    width: 100%;
  }

  .final-cta-inner {
    padding: 48px 28px;
    margin: 0 20px;
  }

  .final-cta-inner h2 {
    font-size: 2.2em;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    text-align: center;
  }

  .footer-inner nav {
    order: 2;
    width: 100%;
    justify-content: center;
  }
  
  .panel-showcase {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }
}

@media (max-width: 400px) {
  .panel-item {
    justify-content: center;
    text-align: center;
    width: 90%;
    max-width: 300px;
    padding: 20px;
  }
}