/* ===================================================
   Abraham Iab — GitHub Portfolio
   style.css
   =================================================== */

/* ---------- Variables ---------- */
:root {
  --clr-bg: #0d1117;
  --clr-bg-2: #161b22;
  --clr-bg-3: #21262d;
  --clr-border: #30363d;
  --clr-accent: #58a6ff;
  --clr-accent-2: #3d8bdb;
  --clr-accent-glow: rgba(88, 166, 255, 0.18);
  --clr-text: #e6edf3;
  --clr-text-muted: #8b949e;
  --clr-text-soft: #c9d1d9;
  --clr-success: #3fb950;
  --clr-error: #f85149;

  --font-sans: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.6);
  --shadow-accent: 0 0 24px var(--clr-accent-glow);

  --transition: 0.25s ease;
  --container-width: 1100px;
  --navbar-h: 64px;
}

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

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

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

img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--clr-accent);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--clr-accent-2);
}
ul {
  list-style: none;
}

/* ---------- Container ---------- */
.container {
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* ---------- Sections ---------- */
.section {
  padding-block: 6rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--clr-accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.6rem;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--clr-text);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: "";
  display: block;
  width: 48px;
  height: 3px;
  background: var(--clr-accent);
  border-radius: 2px;
  margin: 0.5rem auto 0;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  text-decoration: none;
}

.btn--primary {
  background: var(--clr-accent);
  color: var(--clr-bg);
  border-color: var(--clr-accent);
}
.btn--primary:hover {
  background: var(--clr-accent-2);
  border-color: var(--clr-accent-2);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}

.btn--outline {
  background: transparent;
  color: var(--clr-accent);
  border-color: var(--clr-accent);
}
.btn--outline:hover {
  background: var(--clr-accent-glow);
  transform: translateY(-2px);
}

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

/* ===================================================
   NAVBAR
   =================================================== */
.navbar {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  height: var(--navbar-h);
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--clr-border);
  z-index: 100;
  transition:
    background var(--transition),
    box-shadow var(--transition);
}

.navbar.scrolled {
  background: rgba(13, 17, 23, 0.97);
  box-shadow: var(--shadow-md);
}

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

.navbar__logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--clr-text);
  text-decoration: none;
  transition: color var(--transition);
}
.navbar__logo:hover {
  color: var(--clr-accent);
}
.logo-bracket {
  color: var(--clr-accent);
}

.navbar__menu {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--clr-text-muted);
  position: relative;
  transition: color var(--transition);
}
.nav-link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--clr-accent);
  border-radius: 1px;
  transition: width var(--transition);
}
.nav-link:hover,
.nav-link.active {
  color: var(--clr-accent);
}
.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.navbar__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: all var(--transition);
}
.navbar__toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.navbar__toggle.open span:nth-child(2) {
  opacity: 0;
}
.navbar__toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===================================================
   HERO
   =================================================== */
.hero {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--navbar-h);
}

/* Grid background */
.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(88, 166, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(88, 166, 255, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.hero__bg-grid::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 60% 50% at 50% 60%,
    transparent 40%,
    var(--clr-bg) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding-block: 3rem;
}

.hero__greeting {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--clr-accent);
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
}

.hero__name {
  font-size: clamp(2.8rem, 8vw, 5.5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.accent {
  color: var(--clr-accent);
}

.hero__title {
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 400;
  color: var(--clr-text-soft);
  margin-bottom: 1.5rem;
  min-height: 2em;
}

.cursor {
  display: inline-block;
  color: var(--clr-accent);
  animation: blink 1s step-end infinite;
  margin-left: 2px;
}

@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

.hero__desc {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  color: var(--clr-text-muted);
  max-width: 580px;
  margin-inline: auto;
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.hero__socials {
  display: flex;
  gap: 1.25rem;
  justify-content: center;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--clr-border);
  color: var(--clr-text-muted);
  background: var(--clr-bg-2);
  transition: all var(--transition);
}
.social-link:hover {
  color: var(--clr-accent);
  border-color: var(--clr-accent);
  background: var(--clr-accent-glow);
  transform: translateY(-3px);
  box-shadow: var(--shadow-accent);
}

.hero__scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
}

.scroll-dot {
  display: block;
  width: 8px;
  height: 8px;
  background: var(--clr-accent);
  border-radius: 50%;
  animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%,
  100% {
    transform: translateY(0);
    opacity: 1;
  }
  50% {
    transform: translateY(10px);
    opacity: 0.4;
  }
}

/* ===================================================
   SOBRE MÍ
   =================================================== */
.sobre-mi {
  background: var(--clr-bg-2);
}

.sobre-mi__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.sobre-mi__text p {
  color: var(--clr-text-soft);
  margin-bottom: 1rem;
  font-size: 1.025rem;
  line-height: 1.8;
}
.sobre-mi__text strong {
  color: var(--clr-accent);
  font-weight: 600;
}

/* Profile card */
.profile-card {
  background: var(--clr-bg-3);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  text-align: center;
  box-shadow: var(--shadow-md);
  transition:
    transform var(--transition),
    box-shadow var(--transition);
}
.profile-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), var(--shadow-accent);
}

.profile-avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent-2));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-inline: auto;
  margin-bottom: 1.25rem;
  box-shadow:
    0 0 0 4px var(--clr-bg-3),
    0 0 0 6px var(--clr-accent);
}

.avatar-initials {
  font-size: 2rem;
  font-weight: 900;
  color: var(--clr-bg);
  letter-spacing: -1px;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 50%;
}

.avatar-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  display: block;
}

.profile-name {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}

.profile-role {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--clr-accent);
  margin-bottom: 2rem;
}

.profile-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  border-top: 1px solid var(--clr-border);
  padding-top: 1.5rem;
}

.stat-value {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--clr-accent);
  line-height: 1;
  margin-bottom: 0.3rem;
}

.stat-label {
  display: block;
  font-size: 0.72rem;
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  line-height: 1.3;
}

/* ===================================================
   HABILIDADES
   =================================================== */
.habilidades {
  background: var(--clr-bg);
}

.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
}

.skill-category {
  background: var(--clr-bg-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition:
    border-color var(--transition),
    transform var(--transition);
}
.skill-category:hover {
  border-color: var(--clr-accent);
  transform: translateY(-3px);
}

.skill-category__title {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--clr-accent);
  margin-bottom: 1rem;
  font-family: var(--font-mono);
}

.skill-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-pill {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  background: var(--clr-bg-3);
  border: 1px solid var(--clr-border);
  border-radius: 100px;
  font-size: 0.82rem;
  color: var(--clr-text-soft);
  transition: all var(--transition);
  cursor: default;
}
.skill-pill:hover {
  background: var(--clr-accent-glow);
  border-color: var(--clr-accent);
  color: var(--clr-accent);
}

/* ===================================================
   PROYECTOS
   =================================================== */
.proyectos {
  background: var(--clr-bg-2);
}

/* Filter buttons */
.projects__filter {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: 0.45rem 1.2rem;
  border-radius: 100px;
  border: 1px solid var(--clr-border);
  background: transparent;
  color: var(--clr-text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  color: var(--clr-bg);
}

/* Projects grid */
.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  transition: all var(--transition);
}

.project-card {
  background: var(--clr-bg-3);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition:
    transform var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}
.project-card:hover {
  transform: translateY(-5px);
  border-color: var(--clr-accent);
  box-shadow: var(--shadow-accent);
}
.project-card.hidden {
  display: none;
}

.project-card__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.25rem;
}

.project-card__icon {
  color: var(--clr-accent);
  width: 48px;
  height: 48px;
  background: var(--clr-accent-glow);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-card__links {
  display: flex;
  gap: 0.75rem;
}
.project-card__links a {
  color: var(--clr-text-muted);
  transition:
    color var(--transition),
    transform var(--transition);
  display: flex;
}
.project-card__links a:hover {
  color: var(--clr-accent);
  transform: translateY(-2px);
}

.project-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  color: var(--clr-text);
}

.project-card__desc {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 1.25rem;
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--clr-accent);
  background: var(--clr-accent-glow);
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
}

.projects__more {
  text-align: center;
  margin-top: 3rem;
}

/* ===================================================
   CONTACTO
   =================================================== */
.contacto {
  background: var(--clr-bg);
}

.contacto__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: start;
}

.contacto__desc {
  font-size: 1.05rem;
  color: var(--clr-text-soft);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.contact-item__icon {
  width: 36px;
  height: 36px;
  background: var(--clr-bg-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-accent);
  flex-shrink: 0;
}

.contact-item__link {
  font-size: 0.95rem;
  color: var(--clr-text-soft);
}
.contact-item__link:hover {
  color: var(--clr-accent);
}

/* Form */
.contacto__form {
  background: var(--clr-bg-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
}

.form-group {
  margin-bottom: 1.4rem;
}

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--clr-text-soft);
  margin-bottom: 0.5rem;
}

.form-input {
  width: 100%;
  background: var(--clr-bg-3);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 0.7rem 1rem;
  font-size: 0.95rem;
  color: var(--clr-text);
  font-family: inherit;
  outline: none;
  transition:
    border-color var(--transition),
    box-shadow var(--transition);
}
.form-input::placeholder {
  color: var(--clr-text-muted);
}
.form-input:focus {
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px var(--clr-accent-glow);
}
.form-input.error {
  border-color: var(--clr-error);
}

.form-textarea {
  resize: vertical;
  min-height: 130px;
}

.form-error {
  display: block;
  font-size: 0.8rem;
  color: var(--clr-error);
  margin-top: 0.35rem;
  min-height: 1.1em;
}

.form-success {
  text-align: center;
  color: var(--clr-success);
  font-size: 0.9rem;
  margin-top: 1rem;
  padding: 0.75rem;
  background: rgba(63, 185, 80, 0.1);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(63, 185, 80, 0.3);
}

/* ===================================================
   FOOTER
   =================================================== */
.footer {
  background: var(--clr-bg-2);
  border-top: 1px solid var(--clr-border);
  padding-block: 1.75rem;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.footer__copy {
  font-size: 0.875rem;
  color: var(--clr-text-muted);
}

.heart {
  color: #f85149;
  animation: pulse 1.5s ease infinite;
}
@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.2);
  }
}

.footer__credits a {
  font-size: 0.875rem;
  color: var(--clr-text-muted);
}
.footer__credits a:hover {
  color: var(--clr-accent);
}

/* ===================================================
   BACK TO TOP
   =================================================== */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  background: var(--clr-accent);
  color: var(--clr-bg);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transform: translateY(16px);
  transition:
    opacity var(--transition),
    transform var(--transition),
    background var(--transition);
  z-index: 50;
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--clr-accent-2);
}

/* ===================================================
   AOS-like animations (custom, no library needed)
   =================================================== */
[data-aos] {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}
[data-aos="fade-right"] {
  transform: translateX(-32px);
}
[data-aos="fade-left"] {
  transform: translateX(32px);
}
[data-aos="fade-up"] {
  transform: translateY(32px);
}

[data-aos].aos-animate {
  opacity: 1;
  transform: translate(0, 0);
}

/* Delays */
[data-aos-delay="100"] {
  transition-delay: 0.1s;
}
[data-aos-delay="200"] {
  transition-delay: 0.2s;
}
[data-aos-delay="300"] {
  transition-delay: 0.3s;
}
[data-aos-delay="400"] {
  transition-delay: 0.4s;
}
[data-aos-delay="500"] {
  transition-delay: 0.5s;
}

/* ===================================================
   RESPONSIVE
   =================================================== */
@media (max-width: 900px) {
  .sobre-mi__grid,
  .contacto__grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .sobre-mi__card {
    order: -1;
  }
  .profile-stats {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 680px) {
  :root {
    --navbar-h: 56px;
  }

  .section {
    padding-block: 4rem;
  }

  .navbar__menu {
    position: fixed;
    top: var(--navbar-h);
    inset-inline: 0;
    background: rgba(13, 17, 23, 0.98);
    border-bottom: 1px solid var(--clr-border);
    flex-direction: column;
    gap: 0;
    padding: 1rem 0;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition:
      transform var(--transition),
      opacity var(--transition);
  }
  .navbar__menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link {
    padding: 0.9rem 1.5rem;
    width: 100%;
    text-align: center;
  }
  .nav-link::after {
    display: none;
  }

  .navbar__toggle {
    display: flex;
  }

  .hero__actions {
    flex-direction: column;
    align-items: center;
  }

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

  .profile-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
  }
  .stat-value {
    font-size: 1.4rem;
  }

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

  .back-to-top {
    bottom: 1rem;
    right: 1rem;
  }
}

@media (max-width: 400px) {
  .hero__name {
    font-size: 2.4rem;
  }
  .skills__grid {
    grid-template-columns: 1fr;
  }
}

/* ===================================================
   REDUCED MOTION — accesibilidad
   =================================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  [data-aos] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .cursor {
    animation: none;
    opacity: 1;
  }

  .scroll-dot {
    animation: none;
  }

  .heart {
    animation: none;
  }
}