/* TECH CLUB SPAIN — dark tech */

/* ---------- fonts ---------- */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('../fonts/inter-cyrillic.woff2') format('woff2');
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('../fonts/inter-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+2000-206F,
    U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 100 800;
  font-display: swap;
  src: url('../fonts/mono-cyrillic.woff2') format('woff2');
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 100 800;
  font-display: swap;
  src: url('../fonts/mono-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+2000-206F,
    U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ---------- tokens ---------- */
:root {
  --bg: #ffffff;
  --surface: #f6f7f9;
  --surface-2: #eef0f3;
  --border: rgba(0, 0, 0, 0.1);
  --border-strong: rgba(0, 0, 0, 0.28);
  --text: #0b0d10;
  --muted: #5b636e;
  --accent: #a3560c;
  --accent-ink: #ffffff;
  --tg: #0079b8;
  --tg-hover: #00628f;
  --tg-ink: #ffffff;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.05), 0 12px 28px rgba(16, 24, 40, 0.08);
  --hero-veil:
    radial-gradient(56% 52% at 50% 52%, rgba(255, 255, 255, 0.55) 0%, rgba(255, 255, 255, 0) 74%),
    linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.1) 55%, rgba(255, 255, 255, 0.82) 100%);
  --veil-shadow: rgba(255, 255, 255, 0.85);
  --radius: 14px;
  --radius-lg: 20px;
  --maxw: 1160px;
  --gut: clamp(1.25rem, 4vw, 2.5rem);
  color-scheme: light;
}

/* ---------- base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 700;
  text-wrap: balance;
}

p {
  margin: 0;
  text-wrap: pretty;
}

a {
  color: inherit;
}

img,
svg {
  display: block;
  max-width: 100%;
}

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

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 0.75rem 1.25rem;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
  border-radius: 0 0 var(--radius) 0;
}
.skip:focus {
  left: 0;
}

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gut);
}

.section {
  padding-block: clamp(4rem, 9vw, 7.5rem);
}

.eyebrow {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.h2 {
  font-size: clamp(1.9rem, 4.4vw, 3.1rem);
}

.lede {
  color: var(--muted);
  font-size: clamp(1.02rem, 1.6vw, 1.2rem);
  max-width: 62ch;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.95rem 1.7rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font: inherit;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.18s, border-color 0.18s, color 0.18s, transform 0.18s;
}
.btn:hover {
  transform: translateY(-1px);
}
.btn:active {
  transform: translateY(0);
}

.btn--tg {
  background: var(--tg);
  color: var(--tg-ink);
}
.btn--tg:hover {
  background: var(--tg-hover);
}

.btn--ghost {
  border-color: var(--border-strong);
  color: var(--text);
  background: transparent;
}
.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn--sm {
  padding: 0.6rem 1.15rem;
  font-size: 0.9rem;
}

.btn svg {
  flex: none;
}

/* ---------- header ---------- */
.hdr {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--border);
}

.hdr__in {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 1.02rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  white-space: nowrap;
  margin-right: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.nav a:not(.btn) {
  padding: 0.5rem 0.85rem;
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.18s, background-color 0.18s;
}
.nav a:not(.btn):hover {
  color: var(--text);
  background: var(--surface);
}

.hdr__tools {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lang {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 36px;
  padding-inline: 0.6rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: color 0.18s, border-color 0.18s;
}
.lang:hover {
  color: var(--text);
  border-color: var(--border-strong);
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.18s, border-color 0.18s;
}
.icon-btn:hover {
  color: var(--text);
  border-color: var(--border-strong);
}

.burger {
  display: none;
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  isolation: isolate;
  display: grid;
  place-items: center;
  min-height: clamp(560px, 82svh, 780px);
  padding-block: clamp(4rem, 10vw, 7rem);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
}
.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--hero-veil);
}

.hero__in {
  text-align: center;
  display: grid;
  justify-items: center;
  gap: 1.5rem;
}

.hero h1 {
  font-size: clamp(2.3rem, 6.2vw, 4.4rem);
  max-width: 18ch;
}

.hero .lede,
.cta .lede {
  color: var(--text);
  opacity: 0.85;
}

.hero .lede {
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  max-width: 46ch;
}

.hero__in,
.cta {
  text-shadow: 0 1px 18px var(--veil-shadow);
}

.hero__note {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--text);
  opacity: 0.8;
}

/* ---------- pillars (3 cols) ---------- */
.pillars {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.pillar__icon {
  width: 52px;
  height: 52px;
  margin-bottom: 1.15rem;
}

.pillar h3 {
  font-size: 1.24rem;
  margin-bottom: 0.6rem;
}

.pillar p {
  color: var(--muted);
  font-size: 0.98rem;
}

/* ---------- feature (LinkedIn / join) ---------- */
.feature {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: clamp(2.25rem, 5vw, 4rem);
  background: linear-gradient(130deg, #2bb7f0 0%, #4d6ef5 45%, #8b5cf6 100%);
  color: #fff;
  display: grid;
  gap: 1.4rem;
  justify-items: start;
}

.feature h2 {
  font-size: clamp(1.7rem, 3.6vw, 2.6rem);
  max-width: 20ch;
}

.feature p {
  max-width: 52ch;
  color: rgba(255, 255, 255, 0.88);
}

.feature .btn--ghost {
  border-color: rgba(255, 255, 255, 0.55);
  color: #fff;
}
.feature .btn--ghost:hover {
  background: #fff;
  color: #17204a;
  border-color: #fff;
}

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

/* ---------- audience cards ---------- */
.cards {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}

@media (min-width: 760px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

.card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.card:hover {
  border-color: var(--border-strong);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.card__media {
  position: relative;
  flex: none;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--surface-2);
}
.card__media picture {
  position: absolute;
  inset: 0;
  display: block;
}
.card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card__body {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  flex: 1;
  padding: 1.5rem;
}

.card h3 {
  font-size: 1.15rem;
}

.card p {
  color: var(--muted);
  font-size: 0.94rem;
}

.card__link {
  margin-top: auto;
  padding-top: 0.75rem;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  font-size: 0.94rem;
  text-decoration: none;
  color: var(--tg);
  transition: color 0.18s, gap 0.18s;
}
.card__link:hover {
  color: var(--accent);
  gap: 0.7rem;
}
.card__link::after {
  content: '\2192';
}

/* вся карточка кликабельна, доступное имя остаётся у ссылки */
.card__link::before {
  content: '';
  position: absolute;
  inset: 0;
}

/* ---------- social ---------- */
.social {
  border-radius: var(--radius-lg);
  padding: clamp(2.25rem, 5vw, 3.5rem);
  background: linear-gradient(115deg, #fdc830 0%, #f37335 28%, #ee2a7b 62%, #a039c4 100%);
  color: #fff;
  display: grid;
  gap: 1.3rem;
  justify-items: start;
}

.social h2 {
  font-size: clamp(1.7rem, 3.6vw, 2.6rem);
}

.social p {
  color: rgba(255, 255, 255, 0.9);
  max-width: 48ch;
}

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

.social .btn {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
  backdrop-filter: blur(6px);
}
.social .btn:hover {
  background: #fff;
  color: #b02a63;
  border-color: #fff;
}

/* ---------- rules ---------- */
.rules {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  margin-top: 3rem;
}

.rule {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1.6rem;
  transition: border-color 0.2s;
}
.rule:hover {
  border-color: var(--border-strong);
}

.rule__n {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.1em;
}

.rule h3 {
  font-size: 1.1rem;
  margin: 0.7rem 0 0.55rem;
}

.rule p {
  color: var(--muted);
  font-size: 0.95rem;
}

.rule p + p {
  margin-top: 0.6rem;
}

.disclaimer {
  margin-top: 2rem;
  padding: 1.25rem 1.5rem;
  border-left: 2px solid var(--accent);
  color: var(--muted);
  font-size: 0.92rem;
  background: var(--surface);
  border-radius: 0 var(--radius) var(--radius) 0;
}

/* ---------- hashtags ---------- */
.tags {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin-top: 3rem;
}

.tag {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1.5rem;
  transition: border-color 0.2s, background-color 0.2s;
}
.tag:hover {
  border-color: var(--accent);
  background: var(--surface-2);
}

.tag__name {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 0.5rem;
  word-break: break-word;
}

.tag p {
  color: var(--muted);
  font-size: 0.94rem;
}

/* ---------- final cta ---------- */
.cta {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: clamp(3rem, 7vw, 5.5rem) clamp(1.5rem, 5vw, 4rem);
  text-align: center;
  display: grid;
  justify-items: center;
  gap: 1.3rem;
}

.cta__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
}
.cta__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.cta::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--hero-veil);
}

.cta h2 {
  font-size: clamp(1.85rem, 4.4vw, 3rem);
  max-width: 20ch;
}

/* ---------- footer ---------- */
.ftr {
  border-top: 1px solid var(--border);
  padding-block: 3rem 2.5rem;
}

.ftr__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
  justify-content: space-between;
}

.ftr__soc {
  display: flex;
  gap: 0.5rem;
}

.ftr__soc a {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  transition: color 0.18s, border-color 0.18s;
}
.ftr__soc a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.ftr__qr {
  display: none;
  align-items: center;
  gap: 1rem;
  margin-top: 2.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}

.ftr__qr img {
  width: 128px;
  height: 128px;
  border-radius: 12px;
  background: #fff;
  padding: 8px;
}

.ftr__qr p {
  color: var(--muted);
  font-size: 0.92rem;
  max-width: 34ch;
}

@media (min-width: 980px) {
  .ftr__qr {
    display: flex;
  }
}

.legal {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.legal p {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.65;
  max-width: 78ch;
}

.legal a {
  color: var(--muted);
  text-underline-offset: 3px;
}
.legal a:hover {
  color: var(--accent);
}

/* ---------- mobile nav ---------- */
@media (max-width: 860px) {
  .burger {
    display: inline-flex;
  }

  .nav {
    position: fixed;
    inset: 72px 0 auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
    padding: 1rem var(--gut) 1.75rem;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    transform: translateY(-130%);
    transition: transform 0.28s ease;
  }

  .nav[data-open='true'] {
    transform: translateY(0);
  }

  .nav a:not(.btn) {
    padding: 0.85rem 0.5rem;
    font-size: 1.05rem;
  }

  .nav .btn {
    margin-top: 0.5rem;
  }
}

@media (min-width: 861px) {
  .nav {
    transform: none !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}