/* ============================================================
   orusmedia.es — style.css
   Freelance: servicios, confianza, proceso
   Mobile-first · BEM ligero
   ============================================================ */

/* ----------------------------------------------------------
   1. TOKENS DE DISEÑO
   ---------------------------------------------------------- */
:root {
  --color-bg: #FFFFFF;
  --color-surface: #F8F9FA;
  --color-surface-alt: #F1F5F9;
  --color-primary: #1A365D;
  --color-primary-light: #2D4A7A;
  --color-accent: #2563EB;
  --color-accent-hover: #1D4ED8;
  --color-text: #1F2937;
  --color-text-muted: #6B7280;
  --color-text-light: #9CA3AF;
  --color-border: #E5E7EB;
  --color-border-strong: #D1D5DB;
  --color-success: #059669;

  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', SFMono-Regular, Consolas, 'Liberation Mono', Menlo, monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;

  --leading-tight: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;

  --weight-normal: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-extrabold: 800;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  --max-width: 1120px;
  --header-height: 64px;

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
}

/* ----------------------------------------------------------
   1b. MODO OSCURO
   ---------------------------------------------------------- */
[data-theme="dark"] {
  --color-bg: #1a1a1a;
  --color-surface: #2d2d2d;
  --color-surface-alt: #333333;
  --color-primary: #60A5FA;
  --color-primary-light: #93C5FD;
  --color-accent: #3B82F6;
  --color-accent-hover: #60A5FA;
  --color-text: #e0e0e0;
  --color-text-muted: #a0a0a0;
  --color-text-light: #808080;
  --color-border: #404040;
  --color-border-strong: #505050;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.4);
}

body {
  transition: background-color var(--transition-base), color var(--transition-base);
}

/* ----------------------------------------------------------
   2. RESET / BASE
   ---------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: var(--color-accent); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-accent-hover); }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }

/* Protección anti-spam */
.email-protected[data-e] { font-family: var(--font-mono); font-size: 0.9em; }
.email-protected[data-e]::before { content: '[email protected]'; font-size: 0; }
.email-protected[data-e]:not([href^="mailto"])::after { content: none; }

/* ----------------------------------------------------------
   3. HEADER
   ---------------------------------------------------------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
}
.header__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}
.header__brand { flex: 1; min-width: 0; }
.header__name {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-primary);
  text-decoration: none;
}
.header__name:hover { color: var(--color-primary); }

/* ----------------------------------------------------------
   4. NAV
   ---------------------------------------------------------- */
.nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}
.nav__toggle:hover { background: var(--color-surface); }
.nav__toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
}
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Theme toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--color-text);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.theme-toggle:hover { background: var(--color-surface); }
.theme-toggle__icon { display: none; }
[data-theme="dark"] .theme-toggle__icon--sun { display: block; }
[data-theme="light"] .theme-toggle__icon--moon,
body:not([data-theme]) .theme-toggle__icon--moon { display: block; }

@media (prefers-reduced-motion: reduce) {
  .theme-toggle { transition: none; }
}

.nav {
  position: fixed;
  top: var(--header-height);
  left: 0; right: 0; bottom: 0;
  background: var(--color-bg);
  padding: var(--space-8) var(--space-6);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  z-index: 99;
}
.nav.is-open { transform: translateX(0); }
.nav__list { display: flex; flex-direction: column; gap: var(--space-2); }
.nav__link {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-lg);
  font-weight: var(--weight-medium);
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.nav__link:hover, .nav__link.is-active { background: var(--color-surface); color: var(--color-accent); }

.nav__link--cta {
  background: var(--color-accent);
  color: #FFFFFF;
  text-align: center;
  margin-top: var(--space-2);
}
.nav__link--cta:hover { background: var(--color-accent-hover); color: #FFFFFF; }

/* ----------------------------------------------------------
   5. HERO
   ---------------------------------------------------------- */
.section--hero {
  background: var(--color-primary);
  color: #FFFFFF;
  padding: var(--space-16) var(--space-6);
}
.hero__eyebrow {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.7;
  margin-bottom: var(--space-4);
}
.hero__title {
  font-size: var(--text-3xl);
  font-weight: var(--weight-extrabold);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-4);
  max-width: 700px;
}
.hero__subtitle {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  opacity: 0.85;
  margin-bottom: var(--space-8);
  max-width: 540px;
}
.hero__cta {
  display: inline-block;
  padding: var(--space-3) var(--space-6);
  background: var(--color-accent);
  color: #FFFFFF;
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), transform var(--transition-fast);
}
.hero__cta:hover {
  background: var(--color-accent-hover);
  color: #FFFFFF;
  transform: translateY(-1px);
}

/* ----------------------------------------------------------
   6. SECCIONES — base
   ---------------------------------------------------------- */
.section { padding: var(--space-12) var(--space-6); }
.section__container { max-width: var(--max-width); margin: 0 auto; }
.section__heading {
  font-size: var(--text-2xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-primary);
  margin-bottom: var(--space-3);
  position: relative;
  padding-bottom: var(--space-3);
}
.section__heading::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 48px; height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
}
.section__text {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  max-width: 640px;
}

/* ----------------------------------------------------------
   7. SERVICIOS
   ---------------------------------------------------------- */
.section--servicios { background: var(--color-bg); }
.services-grid { display: grid; gap: var(--space-6); }

.service-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}
.service-card:hover { box-shadow: var(--shadow-md); border-color: var(--color-accent); }
.service-card__image {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.service-card__body { padding: var(--space-6); }
.service-card__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}
.service-card__text {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}
.service-card__list { display: grid; gap: var(--space-2); }
.service-card__list li {
  font-size: var(--text-sm);
  color: var(--color-text);
  padding-left: var(--space-5);
  position: relative;
}
.service-card__list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: var(--weight-bold);
}

/* ----------------------------------------------------------
   8. SOBRE MÍ
   ---------------------------------------------------------- */
.section--sobre-mi { background: var(--color-surface); }
.about-content { display: grid; gap: var(--space-8); }
.about-text__intro {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-4);
  line-height: var(--leading-relaxed);
}
.about-text__body {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}
.about-text__body:last-child { margin-bottom: 0; }

.about-stats { display: flex; gap: var(--space-4); flex-wrap: wrap; }
.stat-badge {
  flex: 1;
  min-width: 120px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-4);
  text-align: center;
}
.stat-badge__number {
  display: block;
  font-size: var(--text-2xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-accent);
  margin-bottom: var(--space-1);
}
.stat-badge__label {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ----------------------------------------------------------
   9. PROYECTOS DESTACADOS
   ---------------------------------------------------------- */
.section--proyectos { background: var(--color-bg); }
.projects-grid { display: grid; gap: var(--space-4); }

.project-card {
  display: flex;
  gap: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: box-shadow var(--transition-base);
}
.project-card:hover { box-shadow: var(--shadow-md); }
.project-card__number {
  font-size: var(--text-4xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-accent);
  opacity: 0.25;
  line-height: 1;
  flex-shrink: 0;
  min-width: 48px;
}
.project-card__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}
.project-card__role {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}
.project-card__text {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--color-text-muted);
}

/* ----------------------------------------------------------
   10. CÓMO TRABAJO (Proceso)
   ---------------------------------------------------------- */
.section--proceso { background: var(--color-surface); }
.process-grid { display: grid; gap: var(--space-6); }

.process-step {
  position: relative;
  padding-left: var(--space-10);
}
.process-step__number {
  position: absolute;
  left: 0; top: 0;
  font-size: var(--text-3xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-accent);
  opacity: 0.2;
  line-height: 1;
}
.process-step__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}
.process-step__text {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--color-text-muted);
}

/* ----------------------------------------------------------
   11. FOOTER — CTA + contacto
   ---------------------------------------------------------- */
.footer {
  background: var(--color-primary);
  color: #FFFFFF;
  padding: var(--space-12) var(--space-6);
}
.footer__container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  gap: var(--space-8);
}
.footer__heading {
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-3);
}
.footer__text {
  font-size: var(--text-base);
  opacity: 0.85;
  margin-bottom: var(--space-6);
  max-width: 420px;
  line-height: var(--leading-relaxed);
}
.footer__cta-btn {
  display: inline-block;
  padding: var(--space-3) var(--space-6);
  background: var(--color-accent);
  color: #FFFFFF;
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), transform var(--transition-fast);
}
.footer__cta-btn:hover {
  background: var(--color-accent-hover);
  color: #FFFFFF;
  transform: translateY(-1px);
}
.footer__list { display: grid; gap: var(--space-3); }
.footer__item { display: flex; flex-direction: column; gap: var(--space-1); }
.footer__label {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.7;
}
.footer__link {
  font-size: var(--text-base);
  color: #FFFFFF;
  font-weight: var(--weight-medium);
  transition: opacity var(--transition-fast);
}
.footer__link:hover { opacity: 0.85; color: #FFFFFF; }
.footer__link--static { cursor: default; }
.footer__link--static:hover { opacity: 1; }

.email-protected { font-family: var(--font-mono); font-size: 0.9em; }

.footer__legal {
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}
.footer__copy { font-size: var(--text-sm); opacity: 0.7; margin-bottom: var(--space-3); }
.footer__nav { display: flex; flex-wrap: wrap; gap: var(--space-4); }
.footer__legal-link {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}
.footer__legal-link:hover { color: #FFFFFF; }

/* ----------------------------------------------------------
   12. COOKIE BANNER
   ---------------------------------------------------------- */
.cookie-banner {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 200;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
  padding: var(--space-4) var(--space-6);
  transform: translateY(100%);
  transition: transform var(--transition-slow);
}
.cookie-banner.is-visible { transform: translateY(0); }
.cookie-banner__content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.cookie-banner__text { font-size: var(--text-sm); line-height: var(--leading-relaxed); color: var(--color-text-muted); }
.cookie-banner__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; }
.cookie-banner__btn {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), transform var(--transition-fast);
}
.cookie-banner__btn--accept { background: var(--color-accent); color: #FFFFFF; }
.cookie-banner__btn--accept:hover { background: var(--color-accent-hover); transform: translateY(-1px); }
.cookie-banner__btn--reject { background: var(--color-surface); color: var(--color-text-muted); border: 1px solid var(--color-border); }
.cookie-banner__btn--reject:hover { background: var(--color-surface-alt); color: var(--color-text); }
.cookie-banner__link { font-size: var(--text-sm); color: var(--color-text-muted); text-decoration: underline; text-underline-offset: 2px; }

/* ----------------------------------------------------------
   13. UTILIDADES
   ---------------------------------------------------------- */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.section { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.section.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  .section { opacity: 1; transform: none; transition: none; }
}

/* ----------------------------------------------------------
   14. RESPONSIVE — ≥480px
   ---------------------------------------------------------- */
@media (min-width: 480px) {
  .hero__title { font-size: var(--text-4xl); }
  .section { padding: var(--space-16) var(--space-6); }
  .section__heading { font-size: var(--text-3xl); }
  .about-stats { gap: var(--space-4); }
  .stat-badge { min-width: 140px; }
}

/* ----------------------------------------------------------
   15. RESPONSIVE — ≥768px
   ---------------------------------------------------------- */
@media (min-width: 768px) {
  .nav__toggle { display: none; }
  .nav { position: static; transform: none; background: none; padding: 0; }
  .nav__list { flex-direction: row; gap: var(--space-1); align-items: center; }
  .nav__link { font-size: var(--text-sm); padding: var(--space-2) var(--space-3); }
  .nav__link--cta { margin-top: 0; margin-left: var(--space-2); }

  .section--hero { padding: var(--space-20) var(--space-8); }
  .hero__title { font-size: var(--text-5xl); max-width: 600px; }
  .hero__subtitle { font-size: var(--text-lg); }

  .section { padding: var(--space-20) var(--space-8); }
  .section__heading { font-size: var(--text-3xl); margin-bottom: var(--space-4); }

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

  .about-content { grid-template-columns: 1fr 1fr; gap: var(--space-12); align-items: start; }
  .about-stats { flex-direction: column; }

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

  .process-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-8); }

  .footer { padding: var(--space-16) var(--space-8); }
  .footer__container { grid-template-columns: 1fr 1fr; gap: var(--space-12); }
  .footer__cta { grid-column: 1 / -1; }
  .footer__legal { grid-column: 1 / -1; }

  .cookie-banner__content { flex-direction: row; align-items: center; justify-content: space-between; }
}

/* ----------------------------------------------------------
   16. RESPONSIVE — ≥1024px
   ---------------------------------------------------------- */
@media (min-width: 1024px) {
  .header__container { padding: 0 var(--space-12); }
  .nav__link { font-size: var(--text-base); padding: var(--space-2) var(--space-4); }

  .section--hero { padding: var(--space-24) var(--space-12); }
  .hero__title { font-size: var(--text-5xl); max-width: 700px; }

  .section { padding: var(--space-24) var(--space-12); }
  .section__heading { font-size: var(--text-4xl); }

  .services-grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }

  .process-grid { grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }

  .footer { padding: var(--space-20) var(--space-12); }
}