/* ============================================================
   MACLIFE — landing page styles
   Brand palette from logo: cyan #12c3f4 / blue #39a4dc / navy #0066ab
   ============================================================ */

:root {
  /* brand (overridden live by Tweaks → palette) */
  --c-cyan: #12c3f4;
  --c-blue: #39a4dc;
  --c-navy: #0066ab;

  /* neutrals tuned toward the blue family */
  --ink:        #06243a;
  --ink-soft:   #3a5d75;
  --ink-faint:  #6f8aa0;
  --bg:         #f3f9fd;
  --bg-2:       #e8f4fb;
  --surface:    #ffffff;
  --border:     #d7e7f2;
  --border-2:   #c2dcec;

  --font: "Be Vietnam Pro", system-ui, sans-serif;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow-sm: 0 1px 2px rgba(6,36,58,.05), 0 2px 8px rgba(6,36,58,.04);
  --shadow-md: 0 8px 24px -8px rgba(0,102,171,.18), 0 2px 6px rgba(6,36,58,.06);
  --shadow-lg: 0 24px 60px -18px rgba(0,102,171,.32);
  --maxw: 1200px;
}

[data-theme="dark"] {
  --ink:        #eaf6ff;
  --ink-soft:   #a8c6db;
  --ink-faint:  #6f93ad;
  --bg:         #04161f;
  --bg-2:       #08222f;
  --surface:    #0b2735;
  --border:     #16384a;
  --border-2:   #1d4a61;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.3);
  --shadow-md: 0 10px 30px -10px rgba(0,0,0,.5);
  --shadow-lg: 0 30px 70px -20px rgba(0,0,0,.6);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

/* ============================== Header ============================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: saturate(1.4) blur(14px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--border);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { height: 30px; width: auto; display: block; }
[data-theme="dark"] .brand img { filter: brightness(0) invert(1) drop-shadow(0 0 0 transparent); }
.brand .brand-fallback { font-weight: 800; font-size: 22px; letter-spacing: -.02em; color: var(--c-navy); }

.nav { display: flex; align-items: center; gap: 8px; }
.nav a {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink-soft);
  padding: 9px 14px;
  border-radius: 999px;
  transition: color .15s, background .15s;
}
.nav a:hover { color: var(--c-navy); background: var(--bg-2); }
.nav .btn-primary { color: #fff; }
.nav .btn-primary:hover { color: #fff; }

.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: linear-gradient(120deg, var(--c-navy), var(--c-blue) 60%, var(--c-cyan));
  color: #fff !important;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  box-shadow: 0 6px 18px -6px color-mix(in srgb, var(--c-navy) 70%, transparent);
  transition: transform .15s, box-shadow .15s, filter .15s;
}
.btn-primary:hover { transform: translateY(-1px); filter: brightness(1.05); box-shadow: 0 10px 26px -8px color-mix(in srgb, var(--c-navy) 75%, transparent); }
.btn-primary:active { transform: translateY(0); }

.menu-toggle { display: none; }

/* ============================== Hero ============================== */
.hero {
  position: relative;
  overflow: hidden;
  padding: 88px 0 64px;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.hero-bg .glow {
  position: absolute; border-radius: 50%;
  filter: blur(70px); opacity: .55;
}
.hero-bg .g1 { width: 520px; height: 520px; top: -160px; left: -120px;
  background: radial-gradient(circle, var(--c-cyan), transparent 70%); }
.hero-bg .g2 { width: 460px; height: 460px; top: -120px; right: -100px;
  background: radial-gradient(circle, var(--c-blue), transparent 70%); opacity: .4; }
.hero-bg .grid-lines {
  position: absolute; inset: 0;
  background-image: linear-gradient(var(--border) 1px, transparent 1px),
                    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%);
  opacity: .5;
}
/* logo-echo mountain shapes */
.hero-bg .peaks { position: absolute; right: 4%; top: 70px; width: 320px; height: 240px; opacity: .9; }
[data-theme="dark"] .hero-bg .glow { opacity: .35; }

.hero-inner { position: relative; z-index: 1; text-align: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 13px; font-weight: 600; letter-spacing: .02em;
  color: var(--c-navy);
  background: var(--surface);
  border: 1px solid var(--border-2);
  padding: 7px 15px 7px 11px;
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%;
  background: var(--c-cyan); box-shadow: 0 0 0 4px color-mix(in srgb, var(--c-cyan) 25%, transparent); }

.hero h1 {
  margin: 26px auto 0;
  max-width: 16ch;
  font-size: clamp(38px, 6vw, 70px);
  line-height: 1.02;
  letter-spacing: -.035em;
  font-weight: 800;
  text-wrap: balance;
}
.hero h1 .grad {
  background: linear-gradient(115deg, var(--c-navy), var(--c-blue) 45%, var(--c-cyan));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lede {
  margin: 22px auto 0;
  max-width: 56ch;
  font-size: clamp(16px, 1.6vw, 19.5px);
  line-height: 1.6;
  color: var(--ink-soft);
  text-wrap: pretty;
}

/* search + filters */
.tool-search {
  margin: 34px auto 0;
  max-width: 540px;
  display: flex; align-items: center; gap: 10px;
  background: var(--surface);
  border: 1.5px solid var(--border-2);
  border-radius: 999px;
  padding: 7px 7px 7px 18px;
  box-shadow: var(--shadow-md);
  transition: border-color .18s, box-shadow .18s;
}
.tool-search:focus-within { border-color: var(--c-blue);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--c-blue) 18%, transparent), var(--shadow-md); }
.tool-search svg { flex: none; color: var(--ink-faint); }
.tool-search input {
  flex: 1; border: none; outline: none; background: transparent;
  font-family: inherit; font-size: 16px; color: var(--ink);
}
.tool-search input::placeholder { color: var(--ink-faint); }
.tool-search .count {
  flex: none; font-size: 13px; font-weight: 600; color: var(--c-navy);
  background: var(--bg-2); padding: 9px 15px; border-radius: 999px; white-space: nowrap;
}

.chips { margin: 20px auto 0; display: flex; flex-wrap: wrap; gap: 9px; justify-content: center; }
.chip {
  font-family: inherit; font-size: 14px; font-weight: 500;
  color: var(--ink-soft);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 9px 16px; border-radius: 999px;
  cursor: pointer;
  transition: all .15s;
  display: inline-flex; align-items: center; gap: 7px;
}
.chip .c-dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; opacity: .55; }
.chip:hover { border-color: var(--border-2); color: var(--ink); transform: translateY(-1px); }
.chip.active {
  color: #fff; border-color: transparent;
  background: linear-gradient(120deg, var(--c-navy), var(--c-blue));
  box-shadow: 0 6px 16px -6px color-mix(in srgb, var(--c-navy) 60%, transparent);
}
.chip.active .c-dot { opacity: 1; background: var(--c-cyan); }

/* ============================== Tools grid ============================== */
.tools { padding: 22px 0 80px; }
.section-head { display: flex; align-items: end; justify-content: space-between; margin: 38px 0 20px; gap: 16px; }
.section-head h2 { margin: 0; font-size: 22px; font-weight: 700; letter-spacing: -.02em; display: flex; align-items: center; gap: 11px; }
.section-head .tag-bar { width: 26px; height: 4px; border-radius: 4px; background: linear-gradient(90deg, var(--c-cyan), var(--c-navy)); }
.section-head .count-soft { font-size: 14px; color: var(--ink-faint); font-weight: 500; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(248px, 1fr));
  gap: 12px;
}

/* ---- card gọn (ngang): icon trái · tên + địa chỉ phải ---- */
.card {
  position: relative;
  display: flex; align-items: center; gap: 13px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 13px 15px;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform .16s cubic-bezier(.2,.7,.3,1), box-shadow .16s, border-color .16s;
}
.card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--c-blue) 38%, transparent);
  box-shadow: var(--shadow-md);
}

.card .icon-tile {
  flex: none;
  width: 46px; height: 46px; border-radius: 13px;
  display: grid; place-items: center;
  background: color-mix(in srgb, var(--c-cyan) 15%, #fff);
  color: var(--c-navy);
  transition: transform .18s;
}
.card:hover .icon-tile { transform: scale(1.05); }
.card .icon-tile svg { width: 24px; height: 24px; }

/* biến hoá nhẹ trong họ xanh Maclife (đổi sắc theo vị trí) */
.grid .card:nth-child(4n+1) .icon-tile { background: color-mix(in srgb, var(--c-cyan) 15%, #fff); color: #0a86ab; }
.grid .card:nth-child(4n+2) .icon-tile { background: color-mix(in srgb, var(--c-blue) 16%, #fff); color: #2575a3; }
.grid .card:nth-child(4n+3) .icon-tile { background: color-mix(in srgb, var(--c-navy) 13%, #fff); color: var(--c-navy); }
.grid .card:nth-child(4n+4) .icon-tile { background: color-mix(in srgb, #4fb6e4 17%, #fff); color: #2a8fc2; }

.card .card-body { min-width: 0; flex: 1; display: flex; flex-direction: column; gap: 2px; }
.card h3 {
  margin: 0; font-size: 15.5px; font-weight: 700; letter-spacing: -.01em; color: var(--ink);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  transition: color .16s;
}
.card:hover h3 { color: var(--c-navy); }
.card .meta {
  font-family: ui-monospace, "SF Mono", "Roboto Mono", Menlo, monospace;
  font-size: 12px; color: var(--ink-faint);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* mũi tên nhỏ bên phải, hiện rõ khi hover */
.card .go-arrow {
  flex: none; color: var(--ink-faint);
  opacity: 0; transform: translateX(-4px);
  transition: opacity .18s, transform .18s, color .18s;
}
.card:hover .go-arrow { opacity: 1; transform: translateX(0); color: var(--c-blue); }

[data-theme="dark"] .card .icon-tile { background: rgba(255,255,255,.08) !important; color: var(--c-cyan) !important; }

/* ---- card style: FILLED (dark navy) ---- */
[data-card="filled"] .card {
  background: linear-gradient(160deg, var(--c-navy), color-mix(in srgb, var(--c-navy) 80%, #001a2e));
  border-color: transparent;
  color: #eaf6ff;
}
[data-card="filled"] .card h3 { color: #fff; }
[data-card="filled"] .card p { color: #bfe2f5; }
[data-card="filled"] .card .icon-tile {
  background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.2); color: var(--c-cyan);
}
[data-card="filled"] .card .go { color: var(--c-cyan); }
[data-card="filled"] .card .go .host { color: #7fb4d4; }
[data-card="filled"] .card .cat-pill { background: rgba(255,255,255,.12); color: #bfe2f5; }
[data-card="filled"] .card:hover { box-shadow: var(--shadow-lg); }
[data-card="filled"] .card::after { background: radial-gradient(420px 160px at 90% -20%, color-mix(in srgb, var(--c-cyan) 30%, transparent), transparent 70%); }

/* ---- card style: GRADIENT ---- */
[data-card="gradient"] .card {
  background: linear-gradient(150deg, color-mix(in srgb, var(--c-cyan) 14%, var(--surface)), var(--surface) 55%);
  border-color: var(--border);
}
[data-card="gradient"] .card .icon-tile {
  background: linear-gradient(150deg, var(--c-cyan), var(--c-blue) 55%, var(--c-navy));
  border-color: transparent; color: #fff;
  box-shadow: 0 8px 18px -6px color-mix(in srgb, var(--c-blue) 60%, transparent);
}
[data-card="gradient"] .card .icon-tile svg { filter: drop-shadow(0 1px 1px rgba(0,0,0,.15)); }

/* ============================== Footer (gọn) ============================== */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-2);
  padding: 36px 0 26px;
}
.footer-top {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  flex-wrap: wrap;
}
.footer-top .about { display: flex; flex-direction: column; gap: 10px; }
.footer-top .about img { height: 26px; align-self: flex-start; }
[data-theme="dark"] .footer-top .about img { filter: brightness(0) invert(1); }
.footer-top .about p { margin: 0; font-size: 14px; line-height: 1.6; color: var(--ink-soft); max-width: 44ch; }
.footer-top .socials { display: flex; gap: 10px; flex: none; }
.footer-top .socials a {
  width: 38px; height: 38px; border-radius: 11px;
  display: grid; place-items: center;
  background: var(--surface); border: 1px solid var(--border); color: var(--ink-soft);
  transition: all .15s;
}
.footer-top .socials a:hover { color: var(--c-navy); border-color: var(--border-2); transform: translateY(-2px); }
.footer-bottom {
  margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--border);
  font-size: 13.5px; color: var(--ink-faint);
  text-align: center;
}

/* ============================== entrance anim ============================== */
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
.reveal { opacity: 0; animation: rise .6s cubic-bezier(.2,.7,.3,1) forwards; }

@media (prefers-reduced-motion: reduce) {
  .reveal { animation: none; opacity: 1; }
  html { scroll-behavior: auto; }
}

/* ============================== responsive ============================== */
@media (max-width: 860px) {
  .nav .nav-link { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid .about { grid-column: 1 / -1; }
  .hero { padding: 60px 0 48px; }
  .hero-bg .peaks { display: none; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 18px; }
  .footer-grid { grid-template-columns: 1fr; }
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center; padding: 60px 20px; color: var(--ink-faint);
}
.empty-state strong { color: var(--ink); }

/* ============================================================
   ADD-ONS: language switch · dark toggle · featured showcase
   ============================================================ */

/* ----- language switch (header) ----- */
.lang-switch {
  display: inline-flex; align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
  margin: 0 4px;
}
.lang-switch .lang-opt {
  font-size: 12.5px; font-weight: 700; letter-spacing: .03em;
  color: var(--ink-faint);
  padding: 5px 11px; border-radius: 999px;
  transition: color .15s, background .15s;
  line-height: 1;
}
.lang-switch .lang-opt:hover { color: var(--c-navy); background: transparent; }
.lang-switch .lang-opt.active {
  color: #fff;
  background: linear-gradient(120deg, var(--c-navy), var(--c-blue));
}

/* ----- theme toggle button (optional) ----- */
.theme-toggle {
  width: 38px; height: 38px; border-radius: 999px;
  display: grid; place-items: center; cursor: pointer;
  background: var(--surface); border: 1px solid var(--border); color: var(--ink-soft);
  transition: all .15s;
}
.theme-toggle:hover { color: var(--c-navy); border-color: var(--border-2); }
.theme-toggle .ic-moon { display: none; }
[data-theme="dark"] .theme-toggle .ic-sun { display: none; }
[data-theme="dark"] .theme-toggle .ic-moon { display: block; }

/* ============================== Featured showcase ============================== */
.featured {
  position: relative;
  padding: 30px 0 6px;
}
.featured-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 18px; margin-bottom: 22px; flex-wrap: wrap;
}
.featured-kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: ui-monospace, "SF Mono", "Roboto Mono", Menlo, monospace;
  font-size: 11.5px; font-weight: 600; letter-spacing: .18em;
  color: var(--c-blue);
}
.featured-kicker .pulse {
  width: 7px; height: 7px; border-radius: 50%; background: var(--c-cyan);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--c-cyan) 60%, transparent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 color-mix(in srgb, var(--c-cyan) 55%, transparent); }
  70%  { box-shadow: 0 0 0 9px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}
.featured-head h2 {
  margin: 8px 0 0; font-size: clamp(22px, 3vw, 30px); font-weight: 800;
  letter-spacing: -.025em;
}
.featured-sub { margin: 0 0 3px; color: var(--ink-faint); font-size: 14.5px; }

.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 18px;
}

/* tech-styled featured card: dark glass + glow + animated border */
.fcard {
  position: relative; isolation: isolate;
  display: flex; flex-direction: column;
  padding: 22px 22px 20px;
  border-radius: var(--radius);
  background:
    linear-gradient(160deg, color-mix(in srgb, var(--c-navy) 92%, #000), color-mix(in srgb, var(--c-navy) 70%, #001523));
  color: #eaf6ff;
  overflow: hidden;
  cursor: pointer;
  border: 1px solid color-mix(in srgb, var(--c-blue) 35%, transparent);
  box-shadow: 0 18px 40px -22px color-mix(in srgb, var(--c-navy) 80%, transparent);
  transition: transform .22s cubic-bezier(.2,.7,.3,1), box-shadow .22s, border-color .22s;
}
/* faint tech grid inside the card */
.fcard::before {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: .5;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: radial-gradient(120% 90% at 100% 0%, #000 20%, transparent 70%);
}
.fcard-glow {
  position: absolute; z-index: -1; top: -40%; right: -20%;
  width: 280px; height: 280px; border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--c-cyan) 55%, transparent), transparent 65%);
  opacity: .55; filter: blur(10px);
  transition: opacity .25s, transform .35s;
}
.fcard:hover {
  transform: translateY(-5px);
  border-color: color-mix(in srgb, var(--c-cyan) 60%, transparent);
  box-shadow: 0 26px 56px -22px color-mix(in srgb, var(--c-cyan) 50%, transparent);
}
.fcard:hover .fcard-glow { opacity: .8; transform: scale(1.08) translateY(6px); }

.fcard-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.fcard-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: grid; place-items: center;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.18);
  color: var(--c-cyan);
  backdrop-filter: blur(4px);
}
.fcard-icon svg { width: 28px; height: 28px; }
.fcard-host {
  font-family: ui-monospace, "SF Mono", "Roboto Mono", Menlo, monospace;
  font-size: 11.5px; color: #7fb4d4;
  background: rgba(255,255,255,.06);
  padding: 4px 9px; border-radius: 7px;
  border: 1px solid rgba(255,255,255,.08);
}
.fcard h3 { margin: 18px 0 0; font-size: 20px; font-weight: 700; letter-spacing: -.01em; color: #fff; }
.fcard p { margin: 7px 0 0; font-size: 14px; line-height: 1.55; color: #bfe2f5; flex: 1; }
.fcard-go {
  margin-top: 18px;
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 600; color: var(--c-cyan);
}
.fcard-go svg { transition: transform .2s; }
.fcard:hover .fcard-go svg { transform: translateX(4px); }

/* featured cards stay vivid in dark theme too */
[data-theme="dark"] .fcard {
  background: linear-gradient(160deg, color-mix(in srgb, var(--c-navy) 80%, #000), #06202c);
}

@media (max-width: 560px) {
  .featured-grid { grid-template-columns: 1fr; }
  .lang-switch { margin-left: 0; }
}

/* ===== Tinh chỉnh card trên thiết bị cảm ứng / màn nhỏ ===== */
/* Cảm ứng không có hover -> luôn hiện mũi tên để card cân đối + rõ thao tác */
@media (hover: none) {
  .card .go-arrow { opacity: 1; transform: none; color: var(--c-blue); }
}
@media (max-width: 600px) {
  .tools { padding: 14px 0 56px; }
  .grid { gap: 10px; }
  .card { padding: 12px 14px; gap: 13px; border-radius: 14px; }
  .card .icon-tile { width: 44px; height: 44px; border-radius: 12px; }
  .card .icon-tile svg { width: 23px; height: 23px; }
  .card h3 { font-size: 15px; }
  .card .meta { font-size: 11.5px; }
  /* mũi tên luôn hiện + gọn ở mép phải để cân card full-width */
  .card .go-arrow { width: 18px; height: 18px; opacity: 1; transform: none; color: var(--c-blue); }
}