/* ============================================================
   UniHacker.Club — Design System
   Light / corporate aesthetic with an institutional-green core
   and subtle terminal/hacker accents.
   ============================================================ */

/* ---------- Design tokens ---------- */
:root {
  /* Brand greens */
  --green-900: #032512;
  --green-800: #033d1d;
  --green-700: #00461d;
  --green-600: #007a33; /* primary brand */
  --green-500: #0a9a45;
  --green-400: #2bb866;
  --green-300: #7fd3a0;
  --green-100: #d8efe0;
  --green-50:  #eef8f1;

  /* Neutrals (slightly green-tinted ink) */
  --ink-900: #0c1611;
  --ink-700: #233029;
  --ink-500: #51635a;
  --ink-400: #6f8077;
  --line:    #e2ece6;

  --bg:       #f6faf7;
  --surface:  #ffffff;
  --surface-2:#f0f6f2;

  /* Accent (terminal glow) used sparingly */
  --neon: #16e07a;

  /* Typography */
  --font-display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;

  /* Radii & shadows */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-full: 999px;
  --shadow-sm: 0 1px 2px rgba(3, 37, 18, .06), 0 2px 8px rgba(3, 37, 18, .05);
  --shadow-md: 0 8px 24px rgba(3, 37, 18, .08);
  --shadow-lg: 0 24px 60px rgba(3, 37, 18, .14);
  --shadow-green: 0 18px 40px rgba(0, 122, 51, .25);

  /* Layout */
  --maxw: 1160px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --header-h: 72px;

  --ease: cubic-bezier(.22, .61, .36, 1);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink-700);
  line-height: 1.65;
  font-size: clamp(1rem, .96rem + .2vw, 1.0625rem);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: var(--green-600); text-decoration: none; }
:focus-visible { outline: 3px solid var(--green-400); outline-offset: 3px; border-radius: 6px; }

/* ---------- Layout helpers ---------- */
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(3.5rem, 8vw, 7rem); position: relative; }
.section--tight { padding-block: clamp(2.5rem, 5vw, 4rem); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--green-600);
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-weight: 600;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 1px;
  background: var(--green-400);
}

.section-head { max-width: 60ch; margin-bottom: clamp(2rem, 4vw, 3.25rem); }
.section-head h2 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.05;
  color: var(--ink-900);
  font-size: clamp(1.9rem, 1.2rem + 2.8vw, 3rem);
  margin-top: .8rem;
}
.section-head p { margin-top: 1rem; color: var(--ink-500); font-size: 1.075rem; }

/* ---------- Buttons ---------- */
.btn {
  --bg: var(--green-600);
  --fg: #fff;
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: .98rem;
  padding: .85rem 1.5rem;
  border-radius: var(--r-full);
  border: 1.5px solid transparent;
  background: var(--bg);
  color: var(--fg);
  cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease);
  will-change: transform;
}
.btn svg { width: 18px; height: 18px; }
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-green); }
.btn:active { transform: translateY(0); }
.btn--ghost {
  --bg: transparent; --fg: var(--green-700);
  border-color: var(--green-200, #bfe3cc);
  box-shadow: inset 0 0 0 1px var(--line);
}
.btn--ghost:hover { background: var(--green-50); box-shadow: none; }
.btn--light { --bg:#fff; --fg: var(--green-700); }
.btn--block { width: 100%; justify-content: center; }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background .3s var(--ease), box-shadow .3s var(--ease);
}
.site-header.is-scrolled {
  border-color: var(--line);
  box-shadow: 0 6px 24px rgba(3, 37, 18, .05);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }

.brand { display: inline-flex; align-items: center; gap: .7rem; font-family: var(--font-display); font-weight: 700; color: var(--ink-900); letter-spacing: -.01em; }
.brand__chip {
  display: grid; place-items: center;
  width: 42px; height: 42px;
  border-radius: 12px;
  background: linear-gradient(150deg, var(--green-600), var(--green-800));
  box-shadow: var(--shadow-sm), inset 0 0 0 1px rgba(255,255,255,.08);
}
.brand__chip img { width: 30px; height: auto; }
.brand b { color: var(--green-600); }
.brand small { display:block; font-family: var(--font-mono); font-size:.62rem; letter-spacing:.18em; color: var(--ink-400); text-transform: uppercase; font-weight:500; }

.nav { display: flex; align-items: center; gap: .35rem; }
.nav a {
  color: var(--ink-700);
  font-weight: 500;
  font-size: .96rem;
  padding: .5rem .85rem;
  border-radius: var(--r-full);
  position: relative;
  transition: color .2s, background .2s;
}
.nav a:hover { color: var(--green-700); background: var(--green-50); }
.nav .btn { padding: .6rem 1.15rem; }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 12px;
  cursor: pointer;
  position: relative;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 50%; top: 50%;
  width: 18px; height: 2px; background: var(--ink-700);
  transform: translate(-50%, -50%); transition: transform .3s var(--ease), opacity .2s;
  border-radius: 2px;
}
.nav-toggle span::before { transform: translate(-50%, -7px); }
.nav-toggle span::after  { transform: translate(-50%, 5px); }
.nav-open .nav-toggle span { background: transparent; }
.nav-open .nav-toggle span::before { transform: translate(-50%, -50%) rotate(45deg); }
.nav-open .nav-toggle span::after  { transform: translate(-50%, -50%) rotate(-45deg); }

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: .25rem;
    padding: 1rem var(--gutter) 1.5rem;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    transform: translateY(-120%);
    transition: transform .38s var(--ease);
    visibility: hidden;
  }
  .nav-open .nav { transform: translateY(0); visibility: visible; }
  .nav a { padding: .8rem 1rem; font-size: 1.05rem; }
  .nav .btn { margin-top: .5rem; justify-content: center; }
}

/* ============================================================
   Hero
   ============================================================ */
.hero { position: relative; padding-block: clamp(3.5rem, 7vw, 6.5rem) clamp(3rem, 6vw, 5rem); overflow: hidden; }
.hero::before { /* soft green mesh */
  content: ""; position: absolute; inset: -20% -10% auto -10%; height: 120%;
  background:
    radial-gradient(40% 50% at 12% 8%, rgba(0,122,51,.16), transparent 60%),
    radial-gradient(36% 44% at 92% 0%, rgba(43,184,102,.18), transparent 60%),
    radial-gradient(50% 50% at 70% 90%, rgba(0,70,29,.10), transparent 65%);
  z-index: -2;
}
.hero::after { /* faint technical grid */
  content: ""; position: absolute; inset: 0; z-index: -1;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(75% 70% at 50% 30%, #000 35%, transparent 100%);
          mask-image: radial-gradient(75% 70% at 50% 30%, #000 35%, transparent 100%);
  opacity: .55;
}
.hero__inner { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }

.hero__badge {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: var(--font-mono); font-size: .8rem; font-weight: 600;
  color: var(--green-700);
  background: color-mix(in srgb, var(--green-50) 80%, #fff);
  border: 1px solid var(--green-100);
  padding: .45rem .9rem; border-radius: var(--r-full);
}
.hero__badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green-500); box-shadow: 0 0 0 4px rgba(10,154,69,.18); }

.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -.03em;
  line-height: .98;
  color: var(--ink-900);
  font-size: clamp(2.6rem, 1.4rem + 5.4vw, 5rem);
  margin-top: 1.3rem;
}
.hero h1 .grad {
  background: linear-gradient(110deg, var(--green-600), var(--green-400) 70%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero__lead { margin-top: 1.4rem; max-width: 44ch; font-size: 1.15rem; color: var(--ink-500); }
.hero__cta { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }

/* Terminal card */
.terminal {
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, var(--green-900), #04160c);
  color: #d9ffe9;
  box-shadow: var(--shadow-lg), inset 0 0 0 1px rgba(255,255,255,.06);
  font-family: var(--font-mono);
  font-size: .9rem;
  overflow: hidden;
  position: relative;
}
.terminal__bar { display: flex; align-items: center; gap: .5rem; padding: .85rem 1rem; background: rgba(255,255,255,.04); border-bottom: 1px solid rgba(255,255,255,.07); }
.terminal__bar i { width: 11px; height: 11px; border-radius: 50%; background: #2a4a38; display: inline-block; }
.terminal__bar i:nth-child(1){ background:#ff5f57; } .terminal__bar i:nth-child(2){ background:#febc2e; } .terminal__bar i:nth-child(3){ background:#28c840; }
.terminal__bar span { margin-left: auto; opacity: .6; font-size: .78rem; }
.terminal__body { padding: 1.25rem 1.25rem 1.5rem; line-height: 1.85; }
.terminal__body .c-com { color: #6fae87; }
.terminal__body .c-key { color: var(--neon); }
.terminal__body .c-str { color: #aef0c6; }
.terminal__prompt::before { content: "➜ "; color: var(--neon); }
.terminal__caret { display:inline-block; width:9px; height:1.05em; vertical-align:-2px; background: var(--neon); margin-left:2px; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

@media (max-width: 880px) {
  .hero__inner { grid-template-columns: 1fr; }
  .terminal { max-width: 460px; }
}

/* ============================================================
   Stats
   ============================================================ */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.stat { background: var(--surface); padding: clamp(1.4rem, 3vw, 2.2rem); text-align: left; }
.stat__num { font-family: var(--font-display); font-weight: 700; font-size: clamp(2rem, 1.2rem + 2.6vw, 3.1rem); color: var(--green-600); line-height: 1; letter-spacing: -.02em; }
.stat__num small { font-size: .6em; color: var(--green-400); }
.stat__label { margin-top: .5rem; font-size: .92rem; color: var(--ink-500); }
@media (max-width: 760px) { .stats { grid-template-columns: repeat(2, 1fr); } }

/* ============================================================
   Cards grid (objetivos)
   ============================================================ */
.grid { display: grid; gap: 1.25rem; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--auto { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
@media (max-width: 880px) { .grid--3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .grid--3 { grid-template-columns: 1fr; } }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 1.6rem;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  position: relative;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--green-100); }
.card__icon {
  width: 48px; height: 48px; border-radius: 14px;
  display: grid; place-items: center;
  background: var(--green-50); color: var(--green-600);
  margin-bottom: 1.1rem;
}
.card__icon svg { width: 24px; height: 24px; }
.card h3 { font-family: var(--font-display); font-weight: 600; font-size: 1.18rem; color: var(--ink-900); letter-spacing: -.01em; }
.card p { margin-top: .5rem; color: var(--ink-500); font-size: .98rem; }

/* ============================================================
   Proposta (split feature)
   ============================================================ */
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.feature__panel {
  background: linear-gradient(160deg, var(--green-700), var(--green-900));
  border-radius: var(--r-lg);
  padding: clamp(1.8rem, 4vw, 2.75rem);
  color: #eafff2;
  box-shadow: var(--shadow-green);
  position: relative; overflow: hidden;
}
.feature__panel::after {
  content:""; position:absolute; inset:auto -30% -40% auto; width:60%; aspect-ratio:1;
  background: radial-gradient(circle, rgba(43,184,102,.4), transparent 70%); filter: blur(10px);
}
.feature__list { list-style: none; padding: 0; display: grid; gap: .9rem; position: relative; }
.feature__list li { display: flex; gap: .8rem; align-items: flex-start; }
.feature__list .tick {
  flex: none; width: 26px; height: 26px; border-radius: 8px;
  display: grid; place-items: center; margin-top: 1px;
  background: rgba(255,255,255,.12); color: var(--neon);
}
.feature__list .tick svg { width: 15px; height: 15px; }
.feature__list b { color: #fff; font-weight: 600; }
.feature__list span { color: #b9e9cb; font-size: .95rem; }
@media (max-width: 880px) { .feature { grid-template-columns: 1fr; } }

/* ============================================================
   Leadership
   ============================================================ */
.leaders { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
@media (max-width: 920px) { .leaders { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .leaders { grid-template-columns: 1fr; } }

.leader {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 1.6rem 1.4rem;
  text-align: center;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.leader:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.leader .avatar { margin-inline: auto; }
.leader h3 { font-family: var(--font-display); font-size: 1.1rem; color: var(--ink-900); margin-top: 1rem; }
.leader .role { font-family: var(--font-mono); font-size: .74rem; letter-spacing: .08em; text-transform: uppercase; color: var(--green-600); margin-top: .25rem; }
.leader__links { display: inline-flex; gap: .5rem; margin-top: 1rem; }
.leader__links a {
  font-size: .8rem; font-weight: 600;
  padding: .35rem .75rem; border-radius: var(--r-full);
  background: var(--green-50); color: var(--green-700);
  transition: background .2s, color .2s;
}
.leader__links a:hover { background: var(--green-600); color: #fff; }

/* Avatars */
.avatar {
  --size: 92px;
  width: var(--size); height: var(--size);
  border-radius: 50%;
  display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 700;
  color: #fff;
  background: linear-gradient(150deg, var(--green-500), var(--green-700));
  box-shadow: 0 0 0 4px var(--green-50), var(--shadow-sm);
  overflow: hidden;
  font-size: calc(var(--size) * .36);
  position: relative;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }

/* ============================================================
   Ebooks
   ============================================================ */
.ebooks { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
@media (max-width: 720px) { .ebooks { grid-template-columns: 1fr; } }
.ebook {
  display: grid; grid-template-columns: 130px 1fr; gap: 1.4rem; align-items: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 1.4rem;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.ebook:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.ebook__cover {
  border-radius: var(--r-sm);
  box-shadow: var(--shadow-md);
  transform: rotate(-2deg);
  transition: transform .35s var(--ease);
}
.ebook:hover .ebook__cover { transform: rotate(0) scale(1.03); }
.ebook h3 { font-family: var(--font-display); font-size: 1.15rem; color: var(--ink-900); }
.ebook p { color: var(--ink-500); font-size: .92rem; margin: .4rem 0 1rem; }
@media (max-width: 420px) { .ebook { grid-template-columns: 1fr; text-align: center; } .ebook__cover { margin-inline:auto; } }

/* ============================================================
   CTA band
   ============================================================ */
.cta {
  background: linear-gradient(150deg, var(--green-600), var(--green-800));
  border-radius: var(--r-lg);
  padding: clamp(2.2rem, 5vw, 3.5rem);
  color: #fff;
  text-align: center;
  position: relative; overflow: hidden;
  box-shadow: var(--shadow-green);
}
.cta::before {
  content:""; position:absolute; inset:0;
  background-image: linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px);
  background-size: 40px 40px;
  -webkit-mask-image: radial-gradient(70% 80% at 50% 50%, #000, transparent); mask-image: radial-gradient(70% 80% at 50% 50%, #000, transparent);
}
.cta > * { position: relative; }
.cta h2 { font-family: var(--font-display); font-weight: 700; letter-spacing: -.02em; font-size: clamp(1.8rem, 1.1rem + 2.6vw, 2.8rem); }
.cta p { margin: 1rem auto 0; max-width: 52ch; color: #d6f5e1; }
.cta__actions { display: flex; flex-wrap: wrap; gap: .8rem; justify-content: center; margin-top: 2rem; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer { background: var(--ink-900); color: #c9d6cf; padding-block: clamp(2.5rem, 5vw, 4rem) 2rem; }
.site-footer .container { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2.5rem; }
.site-footer h4 { color: #fff; font-family: var(--font-display); font-size: 1rem; margin-bottom: 1rem; }
.site-footer a { color: #9fc3ad; }
.site-footer a:hover { color: var(--neon); }
.foot-brand { display:flex; align-items:center; gap:.7rem; margin-bottom:1rem; }
.foot-brand img { width: 150px; }
.foot-links { list-style: none; padding: 0; display: grid; gap: .6rem; font-size: .94rem; }
.foot-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  margin-top: 2.5rem; padding-top: 1.5rem;
  display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; justify-content: space-between;
  font-size: .85rem; color: #7f998b; font-family: var(--font-mono);
}
@media (max-width: 720px) { .site-footer .container { grid-template-columns: 1fr; gap: 1.75rem; } }

/* ============================================================
   Team page
   ============================================================ */
.team-hero { padding-block: clamp(2.5rem, 6vw, 4.5rem) clamp(1.5rem,3vw,2.5rem); position: relative; }
.team-hero::after {
  content:""; position:absolute; inset:0; z-index:-1;
  background: radial-gradient(50% 80% at 20% 0%, rgba(0,122,51,.10), transparent 60%);
}
.team-search {
  position: sticky; top: var(--header-h); z-index: 20;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  padding-block: 1rem;
}
.search-box { position: relative; max-width: 460px; }
.search-box svg { position: absolute; left: 1rem; top: 50%; transform: translateY(-50%); width: 19px; height: 19px; color: var(--ink-400); }
.search-box input {
  width: 100%;
  font-family: var(--font-body); font-size: 1rem;
  padding: .85rem 1rem .85rem 2.8rem;
  border: 1px solid var(--line); border-radius: var(--r-full);
  background: var(--surface); color: var(--ink-900);
  transition: border-color .2s, box-shadow .2s;
}
.search-box input:focus { outline: none; border-color: var(--green-400); box-shadow: 0 0 0 4px var(--green-50); }
.search-count { font-family: var(--font-mono); font-size: .82rem; color: var(--ink-400); margin-top: .75rem; }

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1rem;
  padding-bottom: 4rem;
}
.member {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 1.4rem 1rem;
  text-align: center;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s;
}
.member:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--green-100); }
.member .avatar { --size: 76px; margin-inline: auto; }
.member__name { font-weight: 600; color: var(--ink-900); font-size: .95rem; margin-top: .85rem; line-height: 1.3; }
.member__role { font-family: var(--font-mono); font-size: .68rem; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-400); margin-top: .3rem; }
.member--lead .member__role { color: var(--green-600); }
.member.is-hidden { display: none; }
.no-results { text-align: center; color: var(--ink-400); padding: 3rem 0; font-family: var(--font-mono); display: none; }
.no-results.show { display: block; }

/* ============================================================
   Scroll reveal
   ============================================================ */
[data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
[data-reveal].is-visible { opacity: 1; transform: none; }
[data-reveal-delay="1"] { transition-delay: .08s; }
[data-reveal-delay="2"] { transition-delay: .16s; }
[data-reveal-delay="3"] { transition-delay: .24s; }
[data-reveal-delay="4"] { transition-delay: .32s; }