/* ============================================================
   Micaela Sanchez — Portfolio personal
   style.css  (compartido entre index.html y páginas de proyecto)
   ============================================================ */

/* --- Variables -------------------------------------------- */
:root {
  --bg:          #FFFFFF;
  --bg-alt:      #F8FAFC;
  --text:        #0F172A;
  --text-2:      #64748B;
  --accent:      #4F46E5;
  --accent-dark: #3730A3;
  --chip-bg:     #EEF2FF;
  --chip-text:   #3730A3;
  --border:      #E2E8F0;
  --footer-bg:   #0F172A;

  --font-title: 'Syne', sans-serif;
  --font-body:  'Inter', sans-serif;

  --max-w:  1100px;
  --nav-h:  68px;

  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 16px;

  --shadow-sm: 0 1px 3px rgba(15,23,42,.06), 0 1px 2px rgba(15,23,42,.04);
  --shadow-md: 0 4px 16px rgba(15,23,42,.08), 0 2px 6px rgba(15,23,42,.04);
  --shadow-lg: 0 12px 40px rgba(15,23,42,.12);

  --t: 200ms ease;

  color-scheme: light;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
}

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img  { display: block; max-width: 100%; height: auto; }
a    { color: inherit; text-decoration: none; }
ul   { list-style: none; }
strong { font-weight: 600; }

/* --- Accesibilidad ---------------------------------------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  padding: .5rem 1.25rem;
  background: var(--accent);
  color: #fff;
  font-size: .875rem;
  font-weight: 600;
  border-radius: var(--r-sm);
  z-index: 9999;
  transition: top var(--t);
}
.skip-link:focus { top: 1rem; }

/* --- Layout ----------------------------------------------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section       { padding: 6rem 0; }
.section--alt  { background: var(--bg-alt); }
.section--slim { padding: 3rem 0; }

.section-header { margin-bottom: 3.5rem; max-width: 660px; }

.section-tag {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .625rem;
}

.section-title {
  font-family: var(--font-title);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: .75rem;
}

.section-subtitle {
  color: var(--text-2);
  font-size: 1.0625rem;
  line-height: 1.75;
}

/* --- Botones ---------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.75rem;
  border-radius: var(--r-sm);
  font-family: var(--font-body);
  font-size: .9375rem;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--t), color var(--t), border-color var(--t),
              transform var(--t), box-shadow var(--t);
}
.btn--primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn--primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(79,70,229,.35);
}
.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}
.btn--full { width: 100%; }

/* --- Chips ------------------------------------------------ */
.chip {
  display: inline-block;
  padding: .3rem .85rem;
  background: var(--chip-bg);
  color: var(--chip-text);
  border-radius: 999px;
  font-size: .8125rem;
  font-weight: 500;
  line-height: 1.4;
}

/* ============================================================
   NAV
   ============================================================ */
.nav-wrapper {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0);
  backdrop-filter: blur(0px);
  border-bottom: 1px solid transparent;
  transition: background var(--t), backdrop-filter var(--t),
              border-color var(--t), box-shadow var(--t);
}
.nav-wrapper.scrolled {
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.nav {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: .375rem;
}

.nav-logo {
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -.02em;
  margin-right: auto;
  transition: opacity var(--t);
}
.nav-logo:hover { opacity: .75; }

.nav-menu {
  display: flex;
  align-items: center;
  gap: .125rem;
}
.nav-link {
  padding: .4rem .8rem;
  font-size: .875rem;
  font-weight: 500;
  color: var(--text-2);
  border-radius: var(--r-sm);
  transition: color var(--t), background var(--t);
}
.nav-link:hover,
.nav-link.active {
  color: var(--text);
  background: var(--chip-bg);
}
.nav-link--cta {
  background: var(--accent) !important;
  color: #fff !important;
  margin-left: .375rem;
}
.nav-link--cta:hover { background: var(--accent-dark) !important; }

/* Botón de tema */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  border-radius: var(--r-sm);
  cursor: pointer;
  color: var(--text-2);
  flex-shrink: 0;
  transition: background var(--t), color var(--t);
}
.theme-toggle:hover { background: var(--chip-bg); color: var(--text); }

.icon-sun  { display: none; }
.icon-moon { display: block; }
[data-theme="dark"] .icon-sun  { display: block; }
[data-theme="dark"] .icon-moon { display: none; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: .5rem;
  border-radius: var(--r-sm);
  transition: background var(--t);
}
.nav-toggle:hover { background: var(--chip-bg); }

.hamburger {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--t), opacity var(--t);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 5rem) 0 6rem;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  top: -10%; right: -5%;
  width: 700px; height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(79,70,229,.05) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}
.hero .container { position: relative; z-index: 1; }
.hero__inner { max-width: 780px; }

.hero__label {
  display: block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.hero__name {
  font-family: var(--font-title);
  font-size: clamp(3.5rem, 10vw, 7.5rem);
  font-weight: 800;
  line-height: .92;
  letter-spacing: -.04em;
  color: var(--text);
  margin-bottom: 1.75rem;
}

.hero__tagline {
  font-size: clamp(1rem, 2.2vw, 1.3125rem);
  font-weight: 300;
  color: var(--text-2);
  line-height: 1.65;
  margin-bottom: 2.75rem;
  max-width: 600px;
}

.hero__ctas { display: flex; gap: 1rem; flex-wrap: wrap; }

/* ============================================================
   SOBRE MÍ
   ============================================================ */
.about__grid {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 4rem;
  align-items: start;
}
.about__photo-wrap {
  position: sticky;
  top: calc(var(--nav-h) + 2rem);
}
.about__photo {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--r-lg);
  object-fit: cover;
  box-shadow: var(--shadow-md);
}
.about__bio {
  font-size: 1.0625rem;
  color: var(--text-2);
  line-height: 1.85;
}

/* ============================================================
   LISTA TIPO RESUME (Servicios y Proyectos)
   ============================================================ */
.resume-list { display: flex; flex-direction: column; }

.resume-item {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 3rem;
  padding: 2.75rem 0;
  border-bottom: 1px solid var(--border);
}
.resume-item:first-child  { padding-top: 0; }
.resume-item:last-child   { border-bottom: none; padding-bottom: 0; }
.resume-item--soon        { opacity: .5; }

.resume-item__left {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  padding-top: .3rem;
}
.resume-item__cat {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-2);
}

.resume-item__right {
  display: flex;
  flex-direction: column;
  gap: 1.125rem;
}
.resume-item__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.resume-item__title {
  font-family: var(--font-title);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.resume-item__list {
  display: flex;
  flex-direction: column;
  gap: .625rem;
}
.resume-item__list li {
  position: relative;
  padding-left: 1.2rem;
  color: var(--text-2);
  font-size: .9375rem;
  line-height: 1.65;
}
.resume-item__list li::before {
  content: '';
  position: absolute;
  left: 0; top: .63em;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent);
}

.resume-item__desc {
  color: var(--text-2);
  font-size: .9375rem;
  line-height: 1.65;
}
.resume-item__chips {
  display: flex;
  flex-wrap: wrap;
  gap: .375rem;
}

/* Link "Ver proyecto" (en proyectos) */
.resume-item__link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .875rem;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
  flex-shrink: 0;
  transition: color var(--t), gap var(--t);
}
.resume-item__link:hover { color: var(--accent-dark); gap: .625rem; }

.soon-badge {
  display: inline-block;
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-2);
  background: var(--border);
  padding: .2rem .75rem;
  border-radius: 999px;
  white-space: nowrap;
}

/* ============================================================
   HABILIDADES (sección mínima al pie)
   ============================================================ */
.skills-section {
  padding: 2.5rem 0 3rem;
  border-top: 1px solid var(--border);
}
.skills-label {
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-2);
  margin-bottom: .75rem;
}
.skills-chips {
  display: flex;
  flex-wrap: wrap;
  gap: .375rem;
}
.skills-chips .chip {
  font-size: .8125rem;
  padding: .25rem .7rem;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-2);
}

/* ============================================================
   CONTACTO
   ============================================================ */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 4.5rem;
  align-items: start;
}
.contact__form { display: flex; flex-direction: column; gap: 1.25rem; }

.form-group  { display: flex; flex-direction: column; gap: .4rem; }
.form-label  { font-size: .875rem; font-weight: 600; color: var(--text); }
.form-input  {
  font-family: var(--font-body);
  font-size: .9375rem;
  color: var(--text);
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--r-sm);
  padding: .75rem 1rem;
  width: 100%;
  transition: border-color var(--t), box-shadow var(--t);
}
.form-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,70,229,.12);
}
.form-input::placeholder { color: #b0bac7; }
.form-textarea { resize: vertical; min-height: 140px; }
.form-status  { font-size: .9rem; min-height: 1.4em; font-weight: 500; }
.form-status--ok  { color: #059669; }
.form-status--err { color: #dc2626; }

.contact__info       { display: flex; flex-direction: column; gap: 1.75rem; padding-top: .5rem; }
.contact__info-item  { display: flex; flex-direction: column; gap: .25rem; }
.contact__info-label {
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-2);
}
.contact__info-value { font-size: .9375rem; color: var(--text); }
a.contact__info-value:hover { color: var(--accent); }

.contact__socials {
  display: flex;
  flex-direction: column;
  gap: .875rem;
  padding-top: .25rem;
  border-top: 1px solid var(--border);
}
.contact__social-link {
  display: inline-flex;
  align-items: center;
  gap: .625rem;
  font-size: .9375rem;
  font-weight: 500;
  color: var(--text-2);
  transition: color var(--t);
}
.contact__social-link:hover { color: var(--accent); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { background: var(--footer-bg); padding: 1.75rem 0; }
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .5rem;
}
.footer__brand {
  font-family: var(--font-title);
  font-size: 1rem;
  font-weight: 800;
  color: #fff;
}
.footer__copy { font-size: .8125rem; color: rgba(255,255,255,.45); }

/* ============================================================
   PÁGINAS DE PROYECTO
   ============================================================ */

/* Encabezado de proyecto */
.proj-header {
  padding: calc(var(--nav-h) + 3.5rem) 0 3rem;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}
.proj-back {
  display: inline-flex;
  align-items: center;
  gap: .375rem;
  font-size: .875rem;
  font-weight: 500;
  color: var(--text-2);
  margin-bottom: 1.5rem;
  transition: color var(--t);
}
.proj-back:hover { color: var(--accent); }
.proj-back svg { flex-shrink: 0; }

.proj-title {
  font-family: var(--font-title);
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.03em;
  color: var(--text);
  margin-bottom: .875rem;
}
.proj-lead {
  color: var(--text-2);
  font-size: 1.0625rem;
  line-height: 1.75;
  max-width: 640px;
}

/* Secciones de proyecto */
.proj-section  { padding: 4rem 0; }
.proj-section--alt { background: var(--bg-alt); padding: 4rem 0; }

.proj-subtitle {
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1.125rem;
}
.proj-text {
  color: var(--text-2);
  font-size: 1rem;
  line-height: 1.8;
  max-width: 700px;
}
.proj-text + .proj-text { margin-top: .875rem; }

/* Placeholder de Tableau */
.tableau-ph {
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 620px;
  border: 2px dashed var(--border);
  border-radius: var(--r-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-alt);
  margin-bottom: 2.5rem;
}
.tableau-ph__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  color: var(--text-2);
  text-align: center;
}
.tableau-ph__inner svg   { opacity: .4; }
.tableau-ph__inner span  { font-size: .9375rem; font-weight: 500; }
.tableau-ph__inner small { font-size: .8125rem; }

/* Grid de imágenes / gráficos del proyecto */
.proj-img-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-top: 2rem;
}
.proj-img-ph {
  aspect-ratio: 4 / 3;
  border: 2px dashed var(--border);
  border-radius: var(--r-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-alt);
}
.proj-img-ph__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  color: var(--text-2);
  text-align: center;
  padding: 1rem;
}
.proj-img-ph__inner svg   { opacity: .4; }
.proj-img-ph__inner span  { font-size: .875rem; font-weight: 500; }
.proj-img-ph__inner small { font-size: .8125rem; }

.proj-img {
  width: 100%;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  display: block;
}

/* Acordeón de detalle técnico */
.tech-detail {
  border: 1.5px solid var(--border);
  border-radius: var(--r-md);
  overflow: hidden;
}
.tech-detail summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.125rem 1.5rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-title);
  font-size: .9375rem;
  font-weight: 700;
  color: var(--text);
  user-select: none;
  background: var(--bg);
  transition: background var(--t);
}
.tech-detail summary::-webkit-details-marker { display: none; }
.tech-detail summary::marker { display: none; }
.tech-detail summary:hover   { background: var(--chip-bg); }

.tech-detail__chevron { transition: transform 250ms ease; color: var(--text-2); }
.tech-detail[open] .tech-detail__chevron { transform: rotate(180deg); }

.tech-detail__body {
  padding: 1.25rem 1.5rem 1.5rem;
  border-top: 1px solid var(--border);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  gap: .875rem;
}
.tech-link {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .9375rem;
  font-weight: 500;
  color: var(--accent);
  transition: color var(--t);
}
.tech-link:hover { color: var(--accent-dark); }
.tech-link--soon {
  color: var(--text-2);
  pointer-events: none;
  opacity: .65;
}

/* ============================================================
   DARK MODE
   ============================================================ */
[data-theme="dark"] {
  --bg:          #0F172A;
  --bg-alt:      #1E293B;
  --text:        #F1F5F9;
  --text-2:      #94A3B8;
  --accent:      #818CF8;
  --accent-dark: #6366F1;
  --chip-bg:     #1E2D3D;
  --chip-text:   #A5B4FC;
  --border:      #334155;
  --footer-bg:   #020617;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.3);
  --shadow-md: 0 4px 20px rgba(0,0,0,.4);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.55);
  color-scheme: dark;
}
[data-theme="dark"] .nav-wrapper.scrolled  { background: rgba(15,23,42,.92); }
[data-theme="dark"] .form-input            { background: var(--bg-alt); }
[data-theme="dark"] .hero::after           { background: radial-gradient(circle, rgba(129,140,248,.08) 0%, transparent 65%); }
[data-theme="dark"] .skills-chips .chip    { border-color: var(--border); color: var(--text-2); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 960px) {
  .resume-item { grid-template-columns: 120px 1fr; gap: 2rem; }
  .about__grid { grid-template-columns: 200px 1fr; gap: 2.5rem; }
  .about__photo-wrap { position: static; }
}

@media (max-width: 768px) {
  .section { padding: 4.5rem 0; }

  /* Nav mobile */
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: .75rem 1.25rem 1.25rem;
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform 250ms ease, opacity 250ms ease;
  }
  .nav-menu.open { transform: translateY(0); opacity: 1; pointer-events: all; }
  .nav-link { padding: .7rem .75rem; font-size: .9375rem; }
  .nav-link--cta { text-align: center; margin-left: 0; margin-top: .5rem; }

  .nav-toggle.active .hamburger:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.active .hamburger:nth-child(2) { opacity: 0; }
  .nav-toggle.active .hamburger:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  /* Hero */
  .hero__ctas { flex-direction: column; align-items: flex-start; }
  .hero__ctas .btn { max-width: 300px; }

  /* Sobre mí */
  .about__grid { grid-template-columns: 1fr; gap: 2rem; }
  .about__photo-wrap { display: flex; justify-content: center; }
  .about__photo { max-width: 180px; }

  /* Resume list */
  .resume-item { grid-template-columns: 1fr; gap: .5rem; padding: 2rem 0; }
  .resume-item__head { flex-direction: column; gap: .5rem; align-items: flex-start; }

  /* Contacto */
  .contact__grid { grid-template-columns: 1fr; gap: 2.5rem; }

  /* Proyecto */
  .proj-header { padding: calc(var(--nav-h) + 2rem) 0 2rem; }
  .proj-img-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero__name { letter-spacing: -.03em; }
  .tableau-ph { aspect-ratio: 4 / 3; }
}