/* ============ Tonigo — Premium Dark UI ============ */

:root {
  --bg: #0a0a0a;
  --bg-2: #111111;
  --bg-3: #161616;
  --bg-4: #1c1c1c;
  --line: #232323;
  --line-2: #2c2c2c;
  --text: #ffffff;
  --text-2: #a0a0a0;
  --text-3: #6f6f6f;

  --accent: #ff6a3d;          /* warm tool-orange */
  --accent-2: #ffb347;
  --accent-soft: rgba(255,106,61,.12);
  --accent-line: rgba(255,106,61,.35);

  --green: #3ddc97;
  --yellow: #ffd166;
  --red: #ff5d5d;

  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 10px 40px rgba(0,0,0,.4);
  --shadow-soft: 0 4px 18px rgba(0,0,0,.3);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "ss01", "cv11";
}

a { color: inherit; text-decoration: none; transition: all .2s ease; }

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============ NAV ============ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,10,10,.7);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -.01em;
}
.logo__mark {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 9px;
  color: #1a0e07;
  font-size: 15px;
  box-shadow: 0 4px 16px rgba(255,106,61,.35);
}
.logo__text {
  background: linear-gradient(180deg, #fff, #c9c9c9);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.nav__links {
  display: flex;
  gap: 32px;
}
.nav__links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
}
.nav__links a:hover { color: var(--text); }

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 14px 22px;
  border-radius: 11px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: inherit;
  transition: all .2s ease;
  white-space: nowrap;
}
.btn--small { padding: 9px 16px; font-size: 13.5px; }
.btn--large { padding: 18px 30px; font-size: 16px; }
.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #15080a;
  box-shadow: 0 8px 28px rgba(255,106,61,.28);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 38px rgba(255,106,61,.4);
}
.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line-2);
}
.btn--ghost:hover {
  background: var(--bg-3);
  border-color: var(--text-3);
}

/* ============ HERO ============ */
.hero {
  position: relative;
  padding: 120px 0 100px;
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 20% 10%, rgba(255,106,61,.18), transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255,179,71,.10), transparent 55%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  z-index: 0;
}
.hero__bg::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}
.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 880px;
  text-align: center;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 99px;
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  color: var(--accent-2);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 28px;
}
.hero h1 {
  font-size: clamp(38px, 5.5vw, 68px);
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -.025em;
  margin-bottom: 22px;
}
.grad {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead {
  font-size: 19px;
  color: var(--text-2);
  max-width: 640px;
  margin: 0 auto 38px;
}
.hero__cta {
  display: inline-flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 56px;
}
.hero__stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 56px;
  list-style: none;
}
.hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.hero__stats strong {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -.01em;
}
.hero__stats span {
  font-size: 13px;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: .08em;
}

/* ============ Section heads ============ */
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-2);
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-bottom: 14px;
}
.section-head h2 {
  font-size: clamp(30px, 3.6vw, 44px);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.15;
  margin-bottom: 14px;
}
.section-head p {
  color: var(--text-2);
  font-size: 17px;
}

/* ============ Features ============ */
.features { padding: 80px 0; }
.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.feat {
  background: var(--bg-2);
  border: 1px solid var(--line);
  padding: 28px 24px;
  border-radius: var(--radius);
  transition: all .25s ease;
}
.feat:hover {
  border-color: var(--accent-line);
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
}
.feat__icon {
  width: 46px; height: 46px;
  display: grid; place-items: center;
  background: var(--accent-soft);
  color: var(--accent-2);
  border-radius: 11px;
  font-size: 19px;
  margin-bottom: 16px;
}
.feat h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}
.feat p {
  font-size: 14.5px;
  color: var(--text-2);
}

/* ============ Diagnose ============ */
.diag {
  padding: 80px 0;
  background: linear-gradient(180deg, var(--bg-2), var(--bg));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.diag__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 13px 20px;
  background: var(--bg-3);
  border: 1px solid var(--line-2);
  border-radius: 99px;
  color: var(--text);
  font-family: inherit;
  font-size: 14.5px;
  font-weight: 500;
  cursor: pointer;
  transition: all .2s ease;
}
.chip i { color: var(--text-2); }
.chip:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.chip.active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-2);
}
.chip.active i { color: var(--accent-2); }

.diag__result {
  margin-top: 36px;
  padding: 28px 30px;
  background: var(--bg-3);
  border: 1px solid var(--accent-line);
  border-radius: var(--radius);
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}
.diag__result h3 {
  font-size: 20px;
  margin-bottom: 8px;
}
.diag__result p {
  color: var(--text-2);
  font-size: 15px;
  margin-bottom: 18px;
}
.diag__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.diag__links a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 14px;
  background: var(--bg-4);
  border: 1px solid var(--line-2);
  border-radius: 9px;
  color: var(--text);
  font-size: 13.5px;
  font-weight: 500;
}
.diag__links a:hover {
  border-color: var(--accent);
  color: var(--accent-2);
}

/* ============ Guides ============ */
.guides { padding: 100px 0; }
.guides__filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 38px;
}
.filter {
  background: transparent;
  border: 1px solid var(--line-2);
  padding: 9px 16px;
  border-radius: 99px;
  color: var(--text-2);
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition: all .2s ease;
}
.filter:hover { color: var(--text); border-color: var(--text-3); }
.filter.active {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}
.guides__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 20px;
}
.card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .25s ease;
  display: flex;
  flex-direction: column;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-line);
  box-shadow: var(--shadow);
}
.card__media {
  height: 150px;
  display: grid;
  place-items: center;
  font-size: 52px;
  color: var(--text);
  position: relative;
  overflow: hidden;
}
.card__media::before {
  content: "";
  position: absolute; inset: 0;
  opacity: .35;
  background-size: 24px 24px;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
}
.card__media i { position: relative; z-index: 1; }
.card__media--screen { background: linear-gradient(135deg, #ff6a3d, #ff3d6a); }
.card__media--battery { background: linear-gradient(135deg, #3ddc97, #2db389); }
.card__media--port { background: linear-gradient(135deg, #ffb347, #ff8c42); }
.card__media--water { background: linear-gradient(135deg, #4dabf7, #1971c2); }
.card__media--speaker { background: linear-gradient(135deg, #845ef7, #5f3dc4); }
.card__media--button { background: linear-gradient(135deg, #ff5d5d, #c92a2a); }
.card__media--camera { background: linear-gradient(135deg, #20c997, #099268); }

.card__body { padding: 22px 22px 24px; flex: 1; display: flex; flex-direction: column; }
.card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.tag {
  font-size: 11.5px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 99px;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.tag--easy { background: rgba(61,220,151,.15); color: var(--green); }
.tag--mid  { background: rgba(255,209,102,.15); color: var(--yellow); }
.tag--hard { background: rgba(255,93,93,.15); color: var(--red); }
.card__time {
  font-size: 12.5px;
  color: var(--text-3);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -.01em;
}
.card p {
  color: var(--text-2);
  font-size: 14px;
  flex: 1;
  margin-bottom: 16px;
}
.card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 14px;
  color: var(--accent-2);
}
.card__link:hover i { transform: translateX(3px); }
.card__link i { transition: transform .2s ease; }

/* ============ Tools ============ */
.tools { padding: 100px 0; background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.tools__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.tool {
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 24px;
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: all .2s ease;
}
.tool:hover { border-color: var(--accent-line); transform: translateY(-2px); }
.tool i {
  font-size: 22px;
  color: var(--accent-2);
  margin-bottom: 4px;
}
.tool strong { font-size: 15px; font-weight: 600; }
.tool span { font-size: 13.5px; color: var(--text-2); }

/* ============ Academy ============ */
.academy { padding: 100px 0; }
.path {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  position: relative;
}
.path__step {
  background: var(--bg-2);
  border: 1px solid var(--line);
  padding: 28px 24px;
  border-radius: var(--radius);
  position: relative;
  transition: all .25s ease;
}
.path__step:hover {
  border-color: var(--accent-line);
  background: var(--bg-3);
  transform: translateY(-3px);
}
.path__num {
  display: inline-block;
  font-size: 36px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 12px;
  letter-spacing: -.03em;
}
.path__step h3 { font-size: 18px; font-weight: 600; margin-bottom: 6px; }
.path__step p { font-size: 14px; color: var(--text-2); }

/* ============ Community ============ */
.community {
  padding: 100px 0;
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.community__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.community__inner h2 {
  font-size: clamp(28px, 3.3vw, 40px);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.2;
  margin: 14px 0 16px;
}
.community__inner p {
  color: var(--text-2);
  font-size: 16px;
  margin-bottom: 24px;
}
.community__card {
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px;
}
.community__row {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px 18px;
  border-radius: 10px;
  transition: background .2s ease;
}
.community__row:hover { background: var(--bg-4); }
.community__row + .community__row { border-top: 1px solid var(--line); margin-top: 4px; }
.community__row i {
  font-size: 18px;
  color: var(--accent-2);
  margin-top: 3px;
}
.community__row strong {
  display: block;
  font-size: 14.5px;
  font-weight: 600;
  margin-bottom: 3px;
}
.community__row span {
  font-size: 12.5px;
  color: var(--text-3);
}

/* ============ CTA ============ */
.cta {
  padding: 110px 0;
  text-align: center;
  background:
    radial-gradient(circle at 50% 0%, rgba(255,106,61,.15), transparent 60%),
    var(--bg);
  border-top: 1px solid var(--line);
}
.cta__inner h2 {
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 700;
  letter-spacing: -.02em;
  margin-bottom: 14px;
}
.cta__inner p {
  color: var(--text-2);
  margin-bottom: 30px;
  font-size: 17px;
}

/* ============ Footer ============ */
.footer {
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  padding: 60px 0 0;
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 2fr;
  gap: 60px;
  padding-bottom: 50px;
}
.footer__brand p {
  color: var(--text-2);
  font-size: 14px;
  margin-top: 14px;
  max-width: 320px;
}
.footer__cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.footer__cols h4 {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-3);
  margin-bottom: 14px;
}
.footer__cols a {
  display: block;
  font-size: 14px;
  color: var(--text-2);
  padding: 4px 0;
}
.footer__cols a:hover { color: var(--text); }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 24px;
  border-top: 1px solid var(--line);
  color: var(--text-3);
  font-size: 13px;
}

/* ============ Responsive ============ */
@media (max-width: 880px) {
  .nav__links { display: none; }
  .hero { padding: 80px 0 60px; }
  .hero__stats { gap: 32px; }
  .community__inner { grid-template-columns: 1fr; gap: 36px; }
  .footer__inner { grid-template-columns: 1fr; gap: 40px; }
  .footer__cols { grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .footer__bottom { flex-direction: column; gap: 8px; padding: 22px 24px; }
}
@media (max-width: 480px) {
  .hero__stats { gap: 22px; flex-direction: column; }
  .footer__cols { grid-template-columns: 1fr 1fr; }
}

/* ============ Hidden filter result ============ */
.card.is-hidden { display: none; }