/* ============================================================
   CHARINI LAB — styles.css
   Dark tech, mobile-first, vanilla CSS
   ============================================================ */

/* ── TOKENS ─────────────────────────────────────────────── */
:root {
  --bg:           #0a0b0f;
  --bg-alt:       #0f1117;
  --surface:      #13151d;
  --surface-2:    #1a1d28;
  --border:       #1f2335;
  --border-light: #2a2f47;

  --accent:       #6c63ff;
  --accent-2:     #a78bfa;
  --accent-glow:  rgba(108, 99, 255, 0.35);

  --green:        #22d3a5;
  --yellow:       #f59e0b;
  --red:          #f43f5e;
  --cyan:         #22d3ee;

  --text:         #e2e8f0;
  --text-muted:   #64748b;
  --text-dim:     #94a3b8;

  --font-sans:    'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono:    'Cascadia Code', 'Consolas', 'Fira Code', monospace;

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

  --shadow-card:  0 4px 24px rgba(0,0,0,0.4);
  --shadow-glow:  0 0 40px var(--accent-glow);

  --nav-h:        64px;
  --transition:   0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
  font-size: 16px;
}

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

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
ul, ol { list-style: none; }

/* ── SCROLLBAR ──────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }

/* ── NAV ────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  background: rgba(10, 11, 15, 0.7);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), box-shadow var(--transition);
}

.nav.scrolled {
  background: rgba(10, 11, 15, 0.95);
  box-shadow: 0 1px 24px rgba(0,0,0,0.5);
}

.nav__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.01em;
  color: var(--text);
  transition: color var(--transition);
}
.nav__logo:hover { color: var(--accent-2); }
.nav__logo-mark { font-size: 1.25rem; color: var(--accent); }

.nav__links {
  display: flex;
  gap: 2rem;
}

.nav__links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: color var(--transition);
  position: relative;
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0; right: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: left;
}

.nav__links a:hover { color: var(--text); }
.nav__links a:hover::after { transform: scaleX(1); }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-dim);
  border-radius: 2px;
  transition: var(--transition);
}
.nav__toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.open span:nth-child(2) { opacity: 0; }
.nav__toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── HERO ───────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  padding: calc(var(--nav-h) + 3rem) 1.25rem 4rem;
  max-width: 1100px;
  margin: 0 auto;
  gap: 3rem;
  overflow: hidden;
}

.hero__bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.35;
  pointer-events: none;
  z-index: -2;
}

.hero__glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  z-index: -1;
}
.hero__glow--1 {
  width: 500px; height: 500px;
  background: rgba(108, 99, 255, 0.12);
  top: -100px; left: -150px;
}
.hero__glow--2 {
  width: 400px; height: 400px;
  background: rgba(34, 211, 165, 0.07);
  bottom: 0; right: -100px;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.hero__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(0.85); }
}

.hero__title {
  font-size: clamp(2rem, 5.5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 1.25rem;
}

.hero__title-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-2), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__desc {
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 540px;
  line-height: 1.75;
  margin-bottom: 2rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ── TERMINAL WIDGET ─────────────────────────────────────── */
.hero__terminal {
  display: none;
}

.terminal {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.terminal__bar {
  background: var(--surface-2);
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  border-bottom: 1px solid var(--border);
}

.terminal__dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}
.terminal__dot--red    { background: #f43f5e; }
.terminal__dot--yellow { background: #f59e0b; }
.terminal__dot--green  { background: #22d3a5; }

.terminal__title {
  margin-left: auto;
  color: var(--text-muted);
  font-size: 0.72rem;
}

.terminal__body {
  padding: 1.25rem 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  color: var(--text-dim);
}

.t-dim   { color: var(--accent); }
.t-out   { color: var(--green); padding-left: 1rem; }
.t-cursor {
  display: inline-block;
  color: var(--accent-2);
  animation: blink 1s step-end infinite;
}

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

/* ── BUTTONS ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 1.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 0 0 var(--accent-glow);
}
.btn--primary:hover {
  background: var(--accent-2);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.btn--ghost {
  color: var(--text-dim);
  border: 1px solid var(--border-light);
  background: transparent;
}
.btn--ghost:hover {
  color: var(--text);
  border-color: var(--accent);
  background: rgba(108, 99, 255, 0.08);
  transform: translateY(-2px);
}

/* ── SECTIONS ────────────────────────────────────────────── */
.section {
  padding: 5rem 1.25rem;
}

.section--alt {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
}

.section__header {
  margin-bottom: 2.5rem;
}

.section__title {
  font-size: clamp(1.6rem, 4vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 0.5rem;
}

.section__sub {
  color: var(--text-muted);
  font-size: 1rem;
}

/* ── FILTER BAR ──────────────────────────────────────────── */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.filter-btn {
  padding: 0.4rem 1rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  background: transparent;
  transition: all var(--transition);
}

.filter-btn:hover {
  color: var(--text);
  border-color: var(--accent);
}

.filter-btn--active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ── PROJECT CARDS ───────────────────────────────────────── */
.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: all var(--transition);
  opacity: 0;
  transform: translateY(20px);
  animation: cardIn 0.45s forwards;
}

.card:hover {
  border-color: var(--border-light);
  box-shadow: var(--shadow-card);
  transform: translateY(-3px);
}

@keyframes cardIn {
  to { opacity: 1; transform: translateY(0); }
}

.card__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
}

.card__name {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.card__url {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.01em;
}

.card__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
}

.card__btn {
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  transition: all var(--transition);
}

.card__btn--open {
  background: rgba(34, 211, 165, 0.12);
  color: var(--green);
  border: 1px solid rgba(34, 211, 165, 0.3);
}
.card__btn--open:hover {
  background: rgba(34, 211, 165, 0.2);
  border-color: var(--green);
  transform: translateY(-1px);
}

.card__btn--locked {
  background: rgba(100, 116, 139, 0.1);
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.card__btn--locked:hover {
  background: rgba(108, 99, 255, 0.1);
  color: var(--accent-2);
  border-color: var(--accent);
  transform: translateY(-1px);
}

/* ── BADGES ─────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.badge--public  { background: rgba(34, 211, 165, 0.15); color: var(--green); }
.badge--private { background: rgba(244, 63, 94, 0.12);  color: var(--red);   }
.badge--sandbox { background: rgba(245, 158, 11, 0.12); color: var(--yellow);}

/* Estado del proyecto */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.72rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.status-pill::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
}
.status-pill--dev::before    { background: var(--green);  box-shadow: 0 0 6px var(--green); }
.status-pill--soon::before   { background: var(--yellow); }
.status-pill--proto::before  { background: var(--cyan);   }
.status-pill--test::before   { background: var(--accent); }

/* ── ACCESS GRID ─────────────────────────────────────────── */
.access-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.access-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.access-card:hover {
  border-color: var(--border-light);
  box-shadow: var(--shadow-card);
}

.access-card__icon {
  font-size: 1.75rem;
  line-height: 1;
}

.access-card__title {
  font-size: 1.1rem;
  font-weight: 700;
}

.access-card__desc {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.65;
}

/* ── ABOUT ───────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.about-text p {
  color: var(--text-dim);
  line-height: 1.8;
  font-size: 1rem;
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-content: flex-start;
}

.tag {
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid var(--border-light);
  color: var(--text-dim);
  background: var(--surface-2);
  transition: all var(--transition);
}

.tag:hover {
  border-color: var(--accent);
  color: var(--accent-2);
  background: rgba(108, 99, 255, 0.08);
}

/* ── STATUS LIST ─────────────────────────────────────────── */
.status-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.status-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  transition: border-color var(--transition);
  opacity: 0;
  transform: translateX(-12px);
  animation: slideIn 0.4s forwards;
}

.status-item:hover { border-color: var(--border-light); }

@keyframes slideIn {
  to { opacity: 1; transform: translateX(0); }
}

.status-item__name {
  font-weight: 600;
  font-size: 0.95rem;
}

.status-item__right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* ── MODAL ───────────────────────────────────────────────── */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.modal.is-open {
  pointer-events: all;
  opacity: 1;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
}

.modal__box {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  max-width: 400px;
  width: 100%;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  box-shadow: var(--shadow-card), var(--shadow-glow);
  transform: translateY(20px) scale(0.97);
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal.is-open .modal__box {
  transform: translateY(0) scale(1);
}

.modal__close {
  position: absolute;
  top: 1rem; right: 1rem;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--surface-2);
  color: var(--text-muted);
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.modal__close:hover {
  background: var(--border-light);
  color: var(--text);
}

.modal__icon { font-size: 2.5rem; line-height: 1; }
.modal__title { font-size: 1.2rem; font-weight: 700; }
.modal__desc  { color: var(--text-dim); font-size: 0.95rem; }
.modal__hint  { font-size: 0.8rem; color: var(--text-muted); }
.modal__btn   { margin-top: 0.5rem; }

/* ── FOOTER ─────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 1.25rem;
  text-align: center;
}

.footer__logo {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.footer__copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── HIDDEN (filter) ─────────────────────────────────────── */
.card.hidden,
.status-item.hidden {
  display: none;
}

/* ── SCROLL REVEAL ───────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ── RESPONSIVE — tablet ─────────────────────────────────── */
@media (min-width: 640px) {
  .cards       { grid-template-columns: repeat(2, 1fr); }
  .access-grid { grid-template-columns: repeat(3, 1fr); }
  .about-grid  { grid-template-columns: 1fr 1fr; align-items: start; }
}

/* ── RESPONSIVE — desktop ────────────────────────────────── */
@media (min-width: 900px) {
  .hero {
    grid-template-columns: 1fr 1fr;
    min-height: 100svh;
    align-items: center;
  }

  .hero__content { max-width: 100%; }

  .hero__terminal {
    display: block;
  }

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

  .nav__toggle { display: none; }
  .nav__links  { display: flex; }
}

/* ── RESPONSIVE — mobile nav ─────────────────────────────── */
@media (max-width: 899px) {
  .nav__toggle { display: flex; }

  .nav__links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(10, 11, 15, 0.98);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 1.25rem 1.25rem 1.5rem;
    gap: 1rem;
  }

  .nav__links.open { display: flex; }
}

/* ── FOCUS VISIBLE ───────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}