/* ========================================
  AppWare - Estilos Principales
  ======================================== */

/* Variables CSS - Theming */
@font-face {
  font-family: 'Russo One';
  src: url('../img/RussoOne-Regular.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Core brand colors (Logo based) */
  --color-primary: #3f3f48;
  --color-logo: #3f3f48;
  --color-primary-rgb: 63, 63, 72;
  --color-primary-dark: #2d2d35;
  --color-primary-light: #52525b;
  --color-secondary: #0f172a;
  --color-accent: #06b6d4;
  --color-accent-rgb: 6, 182, 212;

  /* Fonts */
  --font-heading: 'Russo One', sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  /* Surfaces & Backgrounds */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f8fafc;
  --color-bg-tertiary: #f1f5f9;
  --color-surface: #ffffff;
  --color-glass: rgba(255, 255, 255, 0.7);
  --color-glass-border: rgba(255, 255, 255, 0.3);

  /* Typography */
  --color-text-primary: #0f172a;
  --color-text-secondary: #475569;
  --color-text-tertiary: #64748b;
  --color-text-inverse: #ffffff;
  --color-footer-bg: var(--color-bg-tertiary);
  --color-footer-text: var(--color-text-primary);
  --color-footer-border: rgba(0, 0, 0, 0.1);

  /* Accent Gradients */
  --grad-primary: linear-gradient(135deg, #3f3f48 0%, #1e1b4b 100%);
  --grad-accent: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  --grad-surface: linear-gradient(180deg, rgba(255,255,255,1) 0%, rgba(248,250,252,1) 100%);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.25rem;
  --radius-xl: 2rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.04), 0 4px 6px -4px rgb(0 0 0 / 0.04);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.04), 0 8px 10px -6px rgb(0 0 0 / 0.04);
  --shadow-premium: 0 10px 30px -5px rgba(0, 0, 0, 0.03), 0 20px 50px -10px rgba(0, 0, 0, 0.03);

  /* Transitions */
  --transition-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 700ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout */
  --max-width: 1280px;
  --header-height: 80px;
}

/* Dark Mode Overrides */
:root.dark {
  --color-logo: #ffffff;
  --color-bg-primary: #020617;
  --color-bg-secondary: #0f172a;
  --color-bg-tertiary: #1e293b;
  --color-surface: #0f172a;
  --color-glass: rgba(15, 23, 42, 0.7);
  --color-glass-border: rgba(255,255,255,0.05);

  --color-text-primary: #f8fafc;
  --color-text-secondary: #94a3b8;
  --color-text-tertiary: #64748b;

  --color-primary: #ffffff;
  --color-secondary: #f1f5f9; /* Improved contrast for dark mode */
  
  --grad-surface: linear-gradient(180deg, #0f172a 0%, #020617 100%);
  
  --color-footer-bg: var(--color-bg-secondary);
  --color-footer-text: var(--color-text-primary);
  --color-footer-border: rgba(255, 255, 255, 0.1);

  --shadow-premium: 0 10px 30px -5px rgba(0, 0, 0, 0.5), 0 20px 50px -10px rgba(0, 0, 0, 0.4);
}

@media (prefers-color-scheme: dark) {
  :root:not(.light) {
  --color-bg-primary: #020617;
  --color-bg-secondary: #0f172a;
  --color-bg-tertiary: #1e293b;
  --color-surface: #0f172a;
  --color-glass: rgba(15, 23, 42, 0.7);
  --color-glass-border: rgba(255, 255, 255, 0.1);

  --color-text-primary: #f8fafc;
  --color-text-secondary: #94a3b8;
  --color-text-tertiary: #64748b;

  --grad-surface: linear-gradient(180deg, #0f172a 0%, #020617 100%);
  
  --shadow-premium: 0 10px 30px -5px rgba(0, 0, 0, 0.5), 0 20px 50px -10px rgba(0, 0, 0, 0.4);
  }
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6, .header__logo {
  font-family: var(--font-heading);
  line-height: 1.2;
}

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

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* Contenedor */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ========================================
  Header / Navegación
  ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--color-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-glass-border);
  z-index: 1000;
  transition: all var(--transition-base);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-logo);
  letter-spacing: -0.01em;
}

.header__logo img {
  height: 48px;
  width: auto;
  color: var(--color-logo);
  filter: drop-shadow(0 4px 6px rgba(0,0,0,0.1));
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.header__menu {
  display: flex;
  gap: var(--space-xl);
}

.header__menu a {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  padding: var(--space-xs) 0;
  position: relative;
  letter-spacing: 0.02em;
}

.header__menu a:hover,
.header__menu a.active {
  color: var(--color-logo);
}

.header__menu a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-fast);
}

.header__menu a.active::after,
.header__menu a:hover::after {
  width: 100%;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.header__cta {
  background: var(--grad-accent);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.4);
  transition: all var(--transition-base);
}

.header__cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.6);
  filter: brightness(1.1);
}

/* Nav actions (inside mobile menu) */
.header__nav-actions {
  display: none;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-md);
}

/* Menú hamburguesa móvil */
.header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 30px;
  height: 30px;
  padding: 0;
}

.header__toggle span {
  display: block;
  width: 100%;
  height: 3px;
  background: var(--color-secondary);
  border-radius: 2px;
  transition: var(--transition-fast);
}

/* ========================================
  Hero Section
  ======================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  background: var(--color-bg-primary);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -10%;
  right: -10%;
  width: 60%;
  height: 80%;
  background: radial-gradient(circle, rgba(var(--color-accent-rgb), 0.15) 0%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -10%;
  left: -5%;
  width: 40%;
  height: 60%;
  background: radial-gradient(circle, rgba(var(--color-primary-rgb), 0.1) 0%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
  z-index: 0;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-4xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero__content {
  animation: slideUp 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  background: rgba(var(--color-primary-rgb), 0.05);
  color: var(--color-primary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: var(--space-xl);
  border: 1px solid rgba(var(--color-primary-rgb), 0.1);
}

.hero__title {
  font-size: clamp(3rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.05;
  color: var(--color-secondary);
  margin-bottom: var(--space-xl);
  letter-spacing: -0.03em;
}

.hero__title span {
  background: var(--grad-accent);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero__description {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 600px;
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 1rem 2.5rem;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1.05rem;
  transition: all var(--transition-base);
}

.hero__btn--primary {
  background: var(--grad-accent);
  color: #fff;
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.4);
}

.hero__btn--primary:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.6);
  filter: brightness(1.1);
}

.hero__btn--secondary {
  background: transparent;
  color: var(--color-secondary);
  border: 2px solid rgba(6, 182, 212, 0.5);
}

.hero__btn--secondary:hover {
  background: rgba(6, 182, 212, 0.1);
  border-color: #06b6d4;
  transform: translateY(-4px);
}

.hero__visual {
  position: relative;
  animation: fadeIn 1s ease-out 0.5s both;
}

.hero__image {
  width: 100%;
  max-width: 550px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-premium);
  transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
  transition: transform var(--transition-slow);
}

.hero__image:hover {
  transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

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

/* ========================================
  Section - Común
  ======================================== */
.section {
  padding: var(--space-4xl) 0;
}

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

.section__header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
}

.section__label {
  display: inline-block;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.section__title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: var(--space-md);
}

.section__description {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
}

/* ========================================
  Cards Grid
  ======================================== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  border: 1px solid rgba(var(--color-primary-rgb), 0.05);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--grad-accent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-premium);
  border-color: rgba(var(--color-accent-rgb), 0.2);
}

.card:hover::before {
  opacity: 1;
}

.card__icon {
  width: 56px;
  height: 56px;
  background: rgba(var(--color-accent-rgb), 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-xl);
  transition: transform var(--transition-base);
}

.card:hover .card__icon {
  transform: scale(1.1) rotate(5deg);
  background: var(--grad-accent);
}

.card__icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-accent);
  transition: color var(--transition-base);
}

.card:hover .card__icon svg {
  color: var(--color-text-inverse);
}

.card__title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-secondary);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.card__description {
  color: var(--color-text-secondary);
  line-height: 1.7;
  font-size: 1rem;
}

/* ========================================
  Stats Section
  ======================================== */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
  text-align: center;
}

.stat__number {
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.stat__label {
  font-size: 1rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

/* ========================================
  CTA Section
  ======================================== */
.cta {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
  text-align: center;
  padding: var(--space-4xl) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.cta__title {
  color: var(--color-secondary);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.cta__description {
  font-size: 1.125rem;
  opacity: 0.9;
  margin-bottom: var(--space-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--grad-accent);
  color: #fff;
  padding: var(--space-md) var(--space-2xl);
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.03em;
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.4);
  transition: all var(--transition-base);
}

.cta__btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.6);
  filter: brightness(1.1);
}

/* ========================================
  Footer
  ======================================== */
.footer {
  background: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: var(--space-3xl) 0 var(--space-xl);
  border-top: 1px solid var(--color-footer-border);
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer__brand {
  max-width: 300px;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: var(--space-md);
}

.footer__logo img {
  height: 40px;
}

:root.dark .logo-img,
:root.dark .footer__logo img,
.footer.is-dark .footer__logo img {
  filter: brightness(0) invert(1);
}

.footer__description {
  color: var(--color-text-tertiary);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.footer__social {
  display: flex;
  gap: var(--space-md);
}

.footer__social a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}

.footer__social a:hover {
  background: var(--color-primary);
}

.footer__social svg {
  width: 20px;
  height: 20px;
}

.footer__column h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__links a {
  color: var(--color-text-tertiary);
  transition: color var(--transition-fast);
}

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

.footer__bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-footer-border);
  text-align: center;
  color: var(--color-text-tertiary);
  font-size: 0.875rem;
}

/* ========================================
  Servicios Page
  ======================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
}

.service-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.service-card__image {
  height: 200px;
  background: var(--color-bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-card__image svg {
  width: 80px;
  height: 80px;
  color: var(--color-primary);
}

.service-card__content {
  padding: var(--space-xl);
}

.service-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: var(--space-sm);
}

.service-card__description {
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.service-card__features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.service-card__features span {
  background: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
}

/* ========================================
  Portfolio Page
  ======================================== */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-xl);
}

.portfolio-item {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.portfolio-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.portfolio-item__image {
  height: 220px;
  background: var(--color-bg-tertiary);
  overflow: hidden;
}

.portfolio-item__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.portfolio-item__content {
  padding: var(--space-xl);
}

.portfolio-item__category {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-text-inverse);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.portfolio-item__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: var(--space-sm);
}

.portfolio-item__description {
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.portfolio-item__tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.portfolio-item__tech span {
  background: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
}

/* ========================================
  About Page
  ======================================== */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
  margin-bottom: var(--space-4xl);
}

.about-intro__content h2 {
  font-size: clamp(2rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: var(--space-lg);
}

.about-intro__content p {
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.about-intro__visual {
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-lg);
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.value-item {
  text-align: center;
  padding: var(--space-xl);
}

.value-item__icon {
  width: 80px;
  height: 80px;
  background: var(--grad-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.value-item__icon svg {
  width: 40px;
  height: 40px;
  color: var(--color-text-inverse);
}

.value-item__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: var(--space-sm);
}

.value-item__description {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ========================================
  Contact Page
  ======================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
}

.contact-form {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: var(--space-sm);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-md);
  border: 2px solid var(--color-bg-tertiary);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.form-group input.error,
.form-group textarea.error {
  border-color: var(--color-error);
}

.form-error {
  color: var(--color-error);
  font-size: 0.875rem;
  margin-top: var(--space-xs);
  display: none;
}

.form-error.show {
  display: block;
}

.contact-form__btn {
  width: 100%;
  background: var(--grad-accent);
  color: #fff;
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.03em;
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.4);
  transition: all var(--transition-base);
  border: none;
  cursor: pointer;
}

.contact-form__btn:hover {
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.6);
  transform: translateY(-2px);
  filter: brightness(1.1);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.contact-info__item {
  display: flex;
  gap: var(--space-lg);
}

.contact-info__icon {
  width: 50px;
  height: 50px;
  background: var(--grad-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.contact-info__icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-text-inverse);
}

.contact-info__content h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: var(--space-xs);
}

.contact-info__content p,
.contact-info__content a {
  color: var(--color-text-secondary);
}

.contact-info__content a:hover {
  color: var(--color-primary);
}

.contact-map {
  margin-top: var(--space-xl);
  height: 250px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ========================================
  Testimonials
  ======================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.testimonial-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-md);
}

.testimonial-card__quote {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
  font-style: italic;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.testimonial-card__avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--color-bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--color-primary);
}

.testimonial-card__info h5 {
  font-weight: 700;
  color: var(--color-secondary);
}

.testimonial-card__info span {
  font-size: 0.875rem;
  color: var(--color-text-tertiary);
}

/* ========================================
  Utilities
  ======================================== */
.text-center {
  text-align: center;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }
.mb-5 { margin-bottom: var(--space-2xl); }

/* ========================================
  Responsive Design
  ======================================== */
@media (max-width: 1024px) {
  .hero__inner {
  grid-template-columns: 1fr;
  text-align: center;
  }

  .hero__description {
  margin-left: auto;
  margin-right: auto;
  }

  .hero__actions {
  justify-content: center;
  }

  .hero__visual {
  display: none;
  }

  .about-intro {
  grid-template-columns: 1fr;
  }

  .about-intro__visual {
  order: -1;
  }

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

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

@media (max-width: 768px) {
  :root {
  --header-height: 70px;
  }

  .header__actions {
  display: none;
  }

  .header__nav-actions {
  display: flex;
  }

  .header__nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--color-bg-primary);
  flex-direction: column;
  padding: var(--space-lg);
  box-shadow: var(--shadow-lg);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--transition-base), opacity var(--transition-base);
  }

  .header__nav.active {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  }

  .header__menu {
  flex-direction: column;
  width: 100%;
  text-align: center;
  }

  .header__cta {
  width: 100%;
  text-align: center;
  }

  .header__toggle {
  display: flex;
  }

  .header__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
  }

  .header__toggle.active span:nth-child(2) {
  opacity: 0;
  }

  .header__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
  }

  .section {
  padding: var(--space-3xl) 0;
  }

  .footer__inner {
  grid-template-columns: 1fr;
  text-align: center;
  }

  .footer__brand {
  max-width: 100%;
  }

  .footer__social {
  justify-content: center;
  }

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

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

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

  .hero__btn {
  width: 100%;
  justify-content: center;
  }

  .cards-grid,
  .services-grid,
  .portfolio-grid,
  .values-grid {
  grid-template-columns: 1fr;
  }
}

/* Animaciones */
@keyframes fadeIn {
  from {
  opacity: 0;
  transform: translateY(20px);
  }
  to {
  opacity: 1;
  transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease forwards;
}

/* ========================================
  Toggle de Tema (Dark/Light)
  ======================================== */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast);
  border: none;
  padding: 0;
}

.theme-toggle:hover {
  background: var(--color-primary);
}

.theme-toggle:hover svg {
  color: var(--color-text-inverse);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.theme-toggle .icon-sun {
  display: none;
}

.theme-toggle .icon-moon {
  display: block;
}

/* En modo oscuro, mostrar el sol y ocultar la luna */
:root.dark .theme-toggle .icon-sun {
  display: block;
}
:root.dark .theme-toggle .icon-moon {
  display: none;
}

@media (prefers-color-scheme: dark) {
  :root:not(.light) .theme-toggle .icon-sun {
  display: block;
  }
  :root:not(.light) .theme-toggle .icon-moon {
  display: none;
  }
}

/* ========================================
  Mejoras de Contraste Dark Mode
  ======================================== */
:root.dark .header__logo {
  color: var(--color-text-primary);
}

@media (prefers-color-scheme: dark) {
  :root:not(.light) .header__logo {
  color: var(--color-text-primary);
  }
}

/* Imágenes con filtros en dark mode */
:root.dark img:not(.logo-img) {
  filter: brightness(0.85) contrast(1.1);
}

@media (prefers-color-scheme: dark) {
  :root:not(.light) img:not(.logo-img) {
  filter: brightness(0.85) contrast(1.1);
  }
}




/* Color scheme para elementos nativos */
:root {
  color-scheme: light dark;
}

:root.light {
  color-scheme: light;
}

:root.dark {
  color-scheme: dark;
}

/* Ajustes adicionales para dark mode */
:root.dark .form-group input,
:root.dark .form-group textarea {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border-color: var(--color-bg-tertiary);
}

:root.dark .form-group input:focus,
:root.dark .form-group textarea:focus {
  border-color: var(--color-accent);
}

@media (prefers-color-scheme: dark) {
  :root:not(.light) .form-group input,
  :root:not(.light) .form-group textarea {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border-color: var(--color-bg-tertiary);
  }

  :root:not(.light) .form-group input:focus,
  :root:not(.light) .form-group textarea:focus {
  border-color: var(--color-accent);
  }
}

/* Mejoras de contraste para textos */
:root.dark .section__label {
  color: var(--color-accent);
}

@media (prefers-color-scheme: dark) {
  :root:not(.light) .section__label {
  color: var(--color-accent);
  }
}

/* El logo ya se maneja con filtros en sus respectivos contenedores o por clase genérica */

/* ========================================
  SVGs embebidos para Dark Mode
  ======================================== */
/* Invertir colores de SVGs decorativos en dark mode */
:root.dark .portfolio-item__image svg,
:root.dark .contact-map svg,
:root.dark .about-intro__visual svg,
:root.dark .service-card__image svg {
  filter: invert(1) hue-rotate(180deg);
}

@media (prefers-color-scheme: dark) {
  :root:not(.light) .portfolio-item__image svg,
  :root:not(.light) .contact-map svg,
  :root:not(.light) .about-intro__visual svg,
  :root:not(.light) .service-card__image svg {
  filter: invert(1) hue-rotate(180deg);
  }
}

/* Ajustes adicionales para contraste en dark mode */
:root.dark .portfolio-item__image svg rect[fill="#3f3f48"],
:root.dark .contact-map svg circle[fill="#3f3f48"] {
  filter: invert(1);
}

@media (prefers-color-scheme: dark) {
  :root:not(.light) .portfolio-item__image svg rect[fill="#3f3f48"],
  :root:not(.light) .contact-map svg circle[fill="#3f3f48"] {
  filter: invert(1);
  }
}

/* Fondo de contenedores de imágenes en dark mode */
:root.dark .portfolio-item__image,
:root.dark .contact-map,
:root.dark .about-intro__visual,
:root.dark .service-card__image {
  background: var(--color-bg-tertiary);
}

@media (prefers-color-scheme: dark) {
  :root:not(.light) .portfolio-item__image,
  :root:not(.light) .contact-map,
  :root:not(.light) .about-intro__visual,
  :root:not(.light) .service-card__image {
  background: var(--color-bg-tertiary);
  }
}