/* ==========================================================================
   zkkTools — Home theme (dark futuristic / purple premium)
   Design tokens + components for the redesigned home page.
   Loaded after design-system.css / style.css so these rules win the cascade.
   ========================================================================== */

:root {
  --bg: #030304;
  --bg-soft: #07070a;
  --surface-1: #08080b;
  --surface-2: #0c0c10;
  --surface-3: #131318;

  --border: rgba(255, 255, 255, 0.09);
  --border-soft: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(169, 74, 255, 0.42);

  --text-primary: #ffffff;
  --text-secondary: #a3a3ad;
  --text-muted: #67676f;

  --purple: #9b32ff;
  --purple-light: #bc5cff;
  --purple-dark: #6614bb;
  --magenta: #d93cff;

  --gradient-brand: linear-gradient(135deg, #d56cff 0%, #9b32ff 45%, #6510b9 100%);
  --gradient-text: linear-gradient(135deg, #c45cff 0%, #8928ff 100%);

  --purple-glow: 0 0 30px rgba(155, 50, 255, 0.18);
  --purple-glow-strong: 0 0 55px rgba(155, 50, 255, 0.28);

  --container: 1280px;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-pill: 999px;

  --ease: cubic-bezier(0.16, 0.8, 0.24, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Light theme — same token names, light values. Any component styled with
   var(--bg)/var(--text-primary)/etc. re-themes automatically when the
   <html> element carries data-theme="light". */
html[data-theme="light"] {
  --bg: #ffffff;
  --bg-soft: #faf9fc;
  --surface-1: #f6f4fa;
  --surface-2: #f0edf7;
  --surface-3: #e8e3f2;

  --border: rgba(20, 10, 30, 0.1);
  --border-soft: rgba(20, 10, 30, 0.06);
  --border-hover: rgba(124, 31, 214, 0.45);

  --text-primary: #14101c;
  --text-secondary: #4a4453;
  --text-muted: #6f6879;

  /* Purple accent used directly as TEXT/ICON color (eyebrows, active nav,
     benefit numbers, badges). #bc5cff reads fine on the dark theme but is
     too light to pass WCAG AA on a white background, so light theme swaps
     in a darker, more saturated purple that still reads as brand purple
     while keeping >= 4.5:1 contrast on white. */
  --purple-light: #7c1fd6;
  --purple-dark: #4d0f8a;
  --magenta: #b0169e;

  /* Darker than the dark-theme gradient so white button/badge text keeps
     >= 4.5:1 contrast on top of it. */
  --gradient-brand: linear-gradient(135deg, #9a3ce0 0%, #7c1fd6 45%, #4d0f8a 100%);
  --gradient-text: linear-gradient(135deg, #9d2fe0 0%, #6614bb 100%);

  --purple-glow: 0 0 24px rgba(124, 31, 214, 0.16);
  --purple-glow-strong: 0 0 40px rgba(124, 31, 214, 0.24);

  color-scheme: light;
}

/* ---------------------------------------------------------------------- */
/* Base                                                                    */
/* ---------------------------------------------------------------------- */

html[data-theme="dark"] {
  color-scheme: dark;
}

html[data-theme="light"] body.zkk {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Chrome that hardcodes dark rgba() instead of referencing the tokens above —
   these need explicit light-mode values since they don't re-theme on their own. */
html[data-theme="light"] .zkk-navbar {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(250, 249, 252, 0.86));
  box-shadow: 0 20px 45px rgba(20, 10, 30, 0.1), 0 1px 0 rgba(155, 50, 255, 0.1) inset;
}

html[data-theme="light"] .zkk-mobile-menu {
  background: rgba(255, 255, 255, 0.98);
}

html[data-theme="light"] .zkk-btn-secondary,
html[data-theme="light"] .zkk-navburger,
html[data-theme="light"] .zkk-newsletter-form {
  background: rgba(20, 10, 30, 0.03);
}

html[data-theme="light"] .zkk-chip,
html[data-theme="light"] .zkk-perf-badge {
  background: rgba(255, 255, 255, 0.92);
}

html[data-theme="light"] .zkk-footer {
  background: #faf9fc;
}

html[data-theme="light"] .zkk-logo-text {
  color: #14101c;
}

html[data-theme="dark"] body.zkk {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.zkk * {
  box-sizing: border-box;
}

/* style.css (a legacy, pre-redesign stylesheet still linked by every inner
   page) sets a plain `header { background: white; border-bottom: ...}` rule
   meant for its own old nav. Pages built on this design system reuse plain
   <header> as a content wrapper for the page title, and since our nav is
   `header.zkk-navbar`, that legacy rule was painting a stray white box
   behind every page's title in both themes. Neutralize it here. */
header:not(.zkk-navbar) {
  background: transparent;
  border-bottom: 0;
  padding: 0;
}

.zkk :focus-visible {
  outline: 2px solid var(--purple-light);
  outline-offset: 3px;
  border-radius: 4px;
}

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

.zkk a {
  color: inherit;
}

/* Ambient background glow — sits behind everything */
.zkk-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(38rem 34rem at 72% 8%, rgba(125, 25, 190, 0.16), transparent 60%),
    radial-gradient(30rem 26rem at 12% 18%, rgba(70, 0, 120, 0.10), transparent 60%),
    radial-gradient(26rem 26rem at 90% 60%, rgba(140, 30, 200, 0.06), transparent 60%),
    var(--bg);
}

.zkk-main {
  position: relative;
  z-index: 1;
}

.zkk-container {
  width: min(calc(100% - 48px), var(--container));
  margin-inline: auto;
}

/* Shared responsive guardrails.  Page-specific layouts can remain expressive
   while content, media and interactive controls never force horizontal scroll. */
html,
body.zkk {
  min-width: 0;
  max-width: 100%;
}

body.zkk {
  overflow-x: clip;
}

.zkk-main,
.zkk-container,
.zkk-navbar,
.zkk-footer-grid,
.zkk-mobile-menu {
  min-width: 0;
}

.zkk-main :is(img, svg, video, canvas) {
  max-width: 100%;
}

.zkk-section {
  padding-block: 90px 110px;
}

@media (min-width: 900px) {
  .zkk-section {
    padding-block: 110px 140px;
  }
}

.zkk-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--purple-light);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.zkk-eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--purple-light);
  box-shadow: 0 0 10px rgba(188, 92, 255, 0.8);
  flex-shrink: 0;
}

.zkk-h2 {
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 750;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin: 0 0 16px;
}

.zkk-section-desc {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.75;
  max-width: 560px;
}

.zkk-gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Scroll reveal (JS toggles .is-visible via IntersectionObserver) */
.zkk-reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 650ms var(--ease), transform 650ms var(--ease);
}

.zkk-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .zkk-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------------------------------------------------------------------- */
/* Buttons                                                                 */
/* ---------------------------------------------------------------------- */

.zkk-btn {
  height: 54px;
  padding: 0 28px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.01em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease), background 220ms var(--ease), border-color 220ms var(--ease);
  white-space: nowrap;
}

.zkk-btn svg {
  width: 16px;
  height: 16px;
}

.zkk-btn-primary {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: 0 12px 30px rgba(120, 20, 200, 0.28);
}

.zkk-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(150, 40, 230, 0.4), var(--purple-glow);
  filter: brightness(1.08);
}

.zkk-btn-secondary {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-primary);
  border-color: var(--border);
}

.zkk-btn-secondary:hover {
  transform: translateY(-2px);
  border-color: var(--border-hover);
  background: rgba(155, 50, 255, 0.06);
}

.zkk-btn-pill-small {
  height: 38px;
  padding: 0 18px;
  border-radius: var(--radius-pill);
  background: var(--gradient-brand);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  transition: transform 200ms var(--ease), box-shadow 200ms var(--ease);
}

.zkk-btn-pill-small:hover {
  transform: translateY(-1px);
  box-shadow: var(--purple-glow);
}

.zkk-nav-login {
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  padding: 0 2px;
  transition: color 200ms var(--ease);
}

.zkk-nav-login:hover {
  color: var(--purple-light, #bc5cff);
}

/* ---------------------------------------------------------------------- */
/* Navbar                                                                  */
/* ---------------------------------------------------------------------- */

.zkk-navbar-wrap {
  position: fixed;
  top: 18px;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: center;
  padding-inline: 16px;
}

.zkk-navbar {
  width: min(100% - 8px, 1320px);
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 14px 0 18px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(15, 15, 18, 0.88), rgba(5, 5, 7, 0.82));
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.45), 0 1px 0 rgba(155, 50, 255, 0.12) inset;
  position: relative;
}

.zkk-navbar::after {
  content: "";
  position: absolute;
  left: 12%;
  right: 12%;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(169, 74, 255, 0.5), transparent);
  pointer-events: none;
}

.zkk-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.zkk-logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  box-shadow: var(--purple-glow);
}

.zkk-logo-image {
  width: 42px;
  height: 42px;
  object-fit: contain;
  flex-shrink: 0;
}

.zkk-logo-text {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: #fff;
  text-transform: uppercase;
}

.zkk-navlinks {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 28px;
  margin: 0;
  padding: 0;
}

.zkk-navlinks a {
  position: relative;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 600;
  padding-bottom: 4px;
  transition: color 200ms var(--ease);
}

.zkk-navlinks a:hover {
  color: #fff;
}

.zkk-navlinks a.is-active {
  color: #fff;
}

.zkk-navlinks a.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 2px;
  border-radius: 2px;
  background: var(--purple-light);
  box-shadow: 0 0 8px rgba(188, 92, 255, 0.9);
}

.zkk-navbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

/* Theme switch: a small button in the nav (next to Premium) that opens a
   popup below it with Dark (default/recommended) and Light options. */
.theme-switch {
  position: relative;
}
.language-switch{position:relative}.language-toggle-btn{display:flex;align-items:center;justify-content:center;width:40px;height:40px;padding:0;border:1px solid var(--border);border-radius:10px;background:rgba(255,255,255,.02);font-size:18px;cursor:pointer}.language-toggle-btn:hover{border-color:var(--purple-light)}.language-popup{position:absolute;top:calc(100% + 10px);right:0;z-index:120;display:none;flex-direction:column;gap:4px;min-width:218px;padding:8px;border:1px solid var(--border);border-radius:14px;background:rgba(10,9,13,.98);box-shadow:0 20px 45px rgba(0,0,0,.5)}.language-popup.open{display:flex}.language-option{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:9px;color:var(--text-dim);text-decoration:none;font-size:20px}.language-option:hover,.language-option.is-active{background:rgba(155,50,255,.12);color:#fff}.language-option span:last-child{display:flex;flex-direction:column;gap:2px}.language-option strong{font-size:13px}.language-option small{font-size:10px;color:var(--text-muted)}
.language-flag{display:block;width:32px;height:22px;object-fit:contain;border:1px solid rgba(255,255,255,.16);border-radius:3px;box-shadow:0 2px 8px rgba(0,0,0,.24);flex:0 0 auto}.language-toggle-btn .language-flag{width:26px;height:18px}

.theme-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-secondary);
  cursor: pointer;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.theme-toggle-btn:hover {
  color: #fff;
  border-color: var(--border-hover);
}

.theme-toggle-btn svg {
  width: 19px;
  height: 19px;
}

.theme-popup {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 120;
  display: none;
  flex-direction: column;
  gap: 5px;
  min-width: 232px;
  padding: 10px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(20, 20, 24, 0.99), rgba(8, 8, 10, 0.99));
  backdrop-filter: blur(20px);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.5);
}

.theme-popup.open {
  display: flex;
}

.theme-option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 13px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  text-align: left;
}

.theme-option:not(.is-active) {
  color: var(--text-secondary);
}

.theme-option:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
}

.theme-option.is-active {
  color: #fff;
  background: rgba(155, 50, 255, 0.16);
  box-shadow: inset 0 0 0 1px rgba(188, 92, 255, 0.35);
}

.theme-option-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.06);
  color: inherit;
}

.theme-option:hover .theme-option-icon {
  background: rgba(255, 255, 255, 0.1);
}

.theme-option.is-active .theme-option-icon {
  background: rgba(255, 255, 255, 0.14);
}

.theme-option-icon svg {
  width: 17px;
  height: 17px;
}

.theme-option-label {
  flex: 1;
}

.theme-option-badge {
  flex-shrink: 0;
  padding: 4px 9px;
  border-radius: 999px;
  background: rgba(155, 50, 255, 0.9);
  color: #fff;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

html[data-theme="light"] .theme-toggle-btn {
  background: rgba(20, 10, 30, 0.03);
}

html[data-theme="light"] .theme-popup {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(250, 249, 252, 0.98));
  box-shadow: 0 20px 45px rgba(20, 10, 30, 0.14);
}

html[data-theme="light"] .theme-option:hover {
  background: rgba(20, 10, 30, 0.05);
  color: #14101c;
}

html[data-theme="light"] .theme-option.is-active {
  color: #14101c;
}

html[data-theme="light"] .theme-option-icon {
  background: rgba(20, 10, 30, 0.05);
}

html[data-theme="light"] .theme-option:hover .theme-option-icon {
  background: rgba(20, 10, 30, 0.08);
}

html[data-theme="light"] .theme-option.is-active .theme-option-icon {
  background: rgba(20, 10, 30, 0.1);
}

.zkk-navburger {
  display: none;
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
}

.zkk-navburger svg {
  width: 18px;
  height: 18px;
}

.zkk-mobile-menu {
  display: none;
  position: fixed;
  top: 98px;
  left: 16px;
  right: 16px;
  z-index: 99;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(8, 8, 11, 0.97);
  backdrop-filter: blur(20px);
  padding: 10px;
  flex-direction: column;
  gap: 2px;
}

.zkk-mobile-menu.is-open {
  display: flex;
}

.zkk-mobile-menu a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  padding: 12px 14px;
  border-radius: 10px;
  transition: background 200ms var(--ease), color 200ms var(--ease);
}

.zkk-mobile-menu a:hover,
.zkk-mobile-menu a.is-active {
  background: rgba(155, 50, 255, 0.1);
  color: #fff;
}

@media (max-width: 1120px) {
  /* Hide the empty desktop <nav>, too; it keeps a flex basis after its links
     disappear and can push the theme and burger controls beyond narrow screens. */
  .zkk-navbar > nav { display: none; }
  .zkk-navlinks { display: none; }
  .zkk-navburger { display: flex; }
}

@media (max-width: 740px) {
  .zkk-navbar-right .zkk-btn-pill-small { display: none; }
}

@media (max-width: 620px) {
  .zkk-navbar-right .zkk-btn-pill-small { display: none; }
  .zkk-navbar-right .zkk-nav-login { display: none; }
  .zkk-navbar { height: 70px; }
  .zkk-logo-image { width: 38px; height: 38px; }
  .zkk-logo-text { font-size: 16px; }
}

@media (max-width: 768px) {
  .zkk-navbar-wrap {
    top: 12px;
    padding-inline: 12px;
  }

  .zkk-navbar {
    width: 100%;
    padding-inline: 14px;
  }

  .zkk-mobile-menu {
    top: 90px;
    left: 12px;
    right: 12px;
    max-height: calc(100vh - 102px);
    overflow-y: auto;
  }

  .zkk-container {
    width: min(calc(100% - 32px), var(--container));
  }

  .zkk-section {
    padding-block: 72px 84px;
  }

  .zkk-h2 {
    font-size: clamp(28px, 9vw, 38px);
  }
}

@media (max-width: 420px) {
  .zkk-navbar {
    padding-inline: 11px;
  }

  .zkk-navbar-right {
    gap: 7px;
  }

  .theme-popup {
    right: -4px;
    min-width: min(200px, calc(100vw - 32px));
  }

  /* Keep account and language navigation available in the mobile menu so the
     account control, language switch, theme button, and burger do not overflow
     the compact navbar together. */
  .zkk-navbar-right .account-menu,
  .zkk-navbar-right .language-switch {
    display: none;
  }

  .zkk-mobile-language-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
    padding: 12px 8px 4px;
    border-top: 1px solid var(--border);
  }

  .zkk-mobile-language-option {
    flex: 1 1 120px;
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-secondary);
    text-decoration: none;
  }

  .zkk-mobile-language-option[aria-current="page"] {
    border-color: var(--purple-light);
    color: var(--text-primary);
  }
}

/* ---------------------------------------------------------------------- */
/* Hero                                                                    */
/* ---------------------------------------------------------------------- */

.zkk-hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  padding: 150px 0 60px;
}

.zkk-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 56px;
  align-items: center;
}

@media (min-width: 1050px) {
  .zkk-hero-grid {
    grid-template-columns: 45% 1fr;
    gap: 40px;
  }
}

.zkk-hero-content {
  text-align: center;
}

@media (min-width: 1050px) {
  .zkk-hero-content {
    text-align: left;
  }
}

.zkk-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-hover);
  background: rgba(155, 50, 255, 0.06);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--purple-light);
  margin-bottom: 26px;
}

.zkk-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--purple-light);
  box-shadow: 0 0 10px rgba(188, 92, 255, 0.9);
}

.zkk-hero-logo {
  font-size: clamp(52px, 6.2vw, 78px);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.045em;
  margin: 0 0 18px;
}

.zkk-hero-logo .zkk-white { color: #fff; }
.zkk-hero-logo .zkk-purple {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.zkk-hero-headline {
  font-size: clamp(30px, 3.4vw, 40px);
  font-weight: 750;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: #fff;
  margin: 0 0 20px;
}

.zkk-hero-desc {
  color: var(--text-secondary);
  font-size: 15.5px;
  line-height: 1.75;
  max-width: 480px;
  margin: 0 auto 34px;
}

@media (min-width: 1050px) {
  .zkk-hero-desc { margin-inline: 0; }
}

.zkk-hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-bottom: 44px;
}

@media (min-width: 1050px) {
  .zkk-hero-buttons { justify-content: flex-start; }
}

.zkk-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  padding: 22px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.025), rgba(255, 255, 255, 0.005));
}

@media (min-width: 560px) {
  .zkk-metrics { grid-template-columns: repeat(4, 1fr); }
}

.zkk-metric {
  display: flex;
  align-items: center;
  gap: 10px;
}

.zkk-metric svg {
  width: 20px;
  height: 20px;
  color: var(--purple-light);
  flex-shrink: 0;
}

.zkk-metric-value {
  font-size: 17px;
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
}

.zkk-metric-label {
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.2;
}

/* ---------------------------------------------------------------------- */
/* Hero — product mockup                                                   */
/* ---------------------------------------------------------------------- */

.zkk-mockup-stage {
  position: relative;
  perspective: 1600px;
}

.zkk-mockup-window {
  transform: perspective(1400px) rotateY(-7deg) rotateX(2deg);
  transform-style: preserve-3d;
  border-radius: var(--radius-md);
  border: 1px solid rgba(169, 74, 255, 0.28);
  background: linear-gradient(160deg, #0b0b10, #050506);
  box-shadow:
    0 40px 120px rgba(0, 0, 0, 0.7),
    0 0 70px rgba(147, 43, 255, 0.22);
  overflow: hidden;
  transition: transform 500ms var(--ease);
}

.zkk-mockup-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-soft);
}

.zkk-mockup-titlebar .zkk-brand-mini {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-secondary);
}

.zkk-mockup-titlebar .zkk-brand-mini span.dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--purple-light);
  box-shadow: 0 0 8px rgba(188,92,255,.9);
}

.zkk-mockup-controls {
  display: flex;
  gap: 10px;
  color: var(--text-muted);
}

.zkk-mockup-controls svg { width: 12px; height: 12px; }

.zkk-mockup-body {
  display: grid;
  grid-template-columns: 128px 1fr;
}

@media (max-width: 520px) {
  .zkk-mockup-body { grid-template-columns: 1fr; }
  .zkk-mockup-sidebar { display: none; }
}

.zkk-mockup-sidebar {
  border-right: 1px solid var(--border-soft);
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.zkk-mockup-sidebar .item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 10.5px;
  font-weight: 600;
  color: var(--text-muted);
}

.zkk-mockup-sidebar .item svg { width: 13px; height: 13px; }

.zkk-mockup-sidebar .item.is-active {
  background: rgba(155, 50, 255, 0.14);
  color: #fff;
}

.zkk-mockup-main {
  padding: 22px 24px 26px;
}

.zkk-mockup-greeting {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin: 0 0 2px;
}

.zkk-mockup-sub {
  font-size: 11.5px;
  color: var(--text-muted);
  margin: 0 0 20px;
}

.zkk-mockup-stats-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  margin-bottom: 18px;
}

.zkk-mockup-ring {
  position: relative;
  width: 96px;
  height: 96px;
  flex-shrink: 0;
}

.zkk-mockup-ring svg { width: 96px; height: 96px; transform: rotate(-90deg); }

.zkk-mockup-ring .track { stroke: rgba(255,255,255,.08); }
.zkk-mockup-ring .value { stroke: url(#zkkRingGradient); stroke-linecap: round; }

.zkk-mockup-ring-label {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.zkk-mockup-ring-label .num { font-size: 18px; font-weight: 800; color: #fff; }
.zkk-mockup-ring-label .txt { font-size: 8px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; }

.zkk-mockup-substats {
  display: flex;
  flex-direction: column;
  gap: 10px;
  justify-content: center;
}

.zkk-mockup-substat {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
}

.zkk-mockup-substat .label { color: var(--text-muted); }
.zkk-mockup-substat .val { color: #fff; font-weight: 700; }

.zkk-mockup-bar-track {
  height: 4px;
  border-radius: 4px;
  background: rgba(255,255,255,.08);
  margin-top: 4px;
  overflow: hidden;
}

.zkk-mockup-bar-fill {
  height: 100%;
  border-radius: 4px;
  background: var(--gradient-brand);
}

.zkk-mockup-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

@media (max-width: 420px) {
  .zkk-mockup-cards { grid-template-columns: 1fr; }
}

.zkk-mockup-card {
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  padding: 14px;
  background: rgba(255,255,255,.015);
}

.zkk-mockup-card .title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}

.zkk-mockup-card .title svg { width: 12px; height: 12px; color: var(--purple-light); }

.zkk-mockup-card .desc {
  font-size: 9.5px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.zkk-mockup-card .action {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 9.5px;
  font-weight: 700;
  color: #fff;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--gradient-brand);
}

/* floating performance badge under the mockup */
.zkk-perf-badge {
  position: relative;
  margin-top: -26px;
  margin-left: auto;
  margin-right: 8%;
  width: fit-content;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-hover);
  background: rgba(10, 10, 13, 0.9);
  backdrop-filter: blur(14px);
  box-shadow: var(--purple-glow);
  z-index: 2;
}

.zkk-perf-badge svg { width: 20px; height: 20px; color: var(--purple-light); flex-shrink: 0; }
.zkk-perf-badge .title { font-size: 11.5px; font-weight: 800; color: #fff; letter-spacing: .04em; text-transform: uppercase; }
.zkk-perf-badge .sub { font-size: 11px; color: var(--text-muted); }

@media (max-width: 640px) {
  .zkk-perf-badge { margin-right: auto; margin-left: auto; }
}

/* subtle floating idle animation for the whole stage */
@keyframes zkkFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.zkk-mockup-stage-inner {
  animation: zkkFloat 7s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  .zkk-mockup-stage-inner,
  .zkk-chip {
    animation: none;
  }
}

/* ---------------------------------------------------------------------- */
/* Features                                                                */
/* ---------------------------------------------------------------------- */

.zkk-features-head {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 48px;
}

@media (min-width: 900px) {
  .zkk-features-head {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
  }
}

.zkk-features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 640px) {
  .zkk-features-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1000px) {
  .zkk-features-grid { grid-template-columns: repeat(3, 1fr); }
}

.zkk-feature-card {
  position: relative;
  min-height: 200px;
  padding: 28px 26px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: linear-gradient(145deg, rgba(17, 13, 24, 0.86), rgba(5, 5, 7, 0.94));
  transition: transform 300ms var(--ease), border-color 300ms var(--ease), box-shadow 300ms var(--ease);
}

.zkk-feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.4), 0 0 30px rgba(155, 50, 255, 0.1);
}

.zkk-feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(155, 50, 255, 0.12);
  border: 1px solid rgba(155, 50, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.zkk-feature-icon svg {
  width: 24px;
  height: 24px;
  color: var(--purple-light);
}

.zkk-feature-number {
  position: absolute;
  top: 26px;
  right: 26px;
  font-size: 12px;
  font-weight: 800;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.zkk-feature-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  margin: 0 0 8px;
}

.zkk-feature-card p {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 0;
}

/* ---------------------------------------------------------------------- */
/* Story                                                                   */
/* ---------------------------------------------------------------------- */

.zkk-story {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background:
    radial-gradient(40rem 24rem at 0% 0%, rgba(122, 31, 161, 0.10), transparent 60%),
    var(--surface-1);
  padding: 44px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

@media (min-width: 900px) {
  .zkk-story {
    grid-template-columns: 42% 1fr;
    padding: 60px;
  }
}

.zkk-brand3d {
  position: relative;
  height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.zkk-brand3d-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(14rem 12rem at 50% 40%, rgba(155, 50, 255, 0.28), transparent 70%);
  filter: blur(4px);
}

.zkk-brand3d-mark {
  position: relative;
  font-size: 92px;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: #050506;
  -webkit-text-stroke: 1px rgba(188, 92, 255, 0.5);
  text-shadow:
    0 1px 0 #1b1520, 0 2px 0 #1b1520, 0 3px 0 #1b1520, 0 4px 0 #1b1520,
    0 5px 0 #1b1520, 0 6px 0 #1b1520, 0 7px 0 #1b1520, 0 8px 0 #1b1520,
    0 18px 30px rgba(0, 0, 0, 0.6), 0 0 40px rgba(155, 50, 255, 0.35);
}

.zkk-brand3d-pedestal {
  position: absolute;
  bottom: 18px;
  width: 210px;
  height: 34px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(155, 50, 255, 0.35), rgba(155, 50, 255, 0.05) 70%, transparent 75%);
  filter: blur(1px);
}

.zkk-story-content h2 { margin-bottom: 18px; }

.zkk-story-content p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
  margin: 0 0 32px;
  max-width: 640px;
}

.zkk-story-benefits {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
}

.zkk-benefit {
  display: flex;
  align-items: center;
  gap: 12px;
}

.zkk-benefit svg {
  width: 22px;
  height: 22px;
  color: var(--purple-light);
  flex-shrink: 0;
}

.zkk-benefit .num { font-size: 14px; font-weight: 800; color: #fff; line-height: 1.2; }
.zkk-benefit .label { font-size: 12px; color: var(--text-muted); line-height: 1.3; }

/* ---------------------------------------------------------------------- */
/* Premium banner                                                          */
/* ---------------------------------------------------------------------- */

.zkk-premium {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-hover);
  background: linear-gradient(120deg, rgba(102, 20, 187, 0.16), rgba(5, 5, 7, 0.9) 55%);
  padding: 40px 32px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 26px;
  align-items: center;
  overflow: hidden;
}

@media (min-width: 900px) {
  .zkk-premium {
    grid-template-columns: auto 1fr auto;
    padding: 0 48px;
    min-height: 240px;
  }
}

.zkk-premium-icon {
  width: 90px;
  height: 90px;
  border-radius: 22px;
  background: linear-gradient(160deg, rgba(155, 50, 255, 0.28), rgba(155, 50, 255, 0.06));
  border: 1px solid rgba(155, 50, 255, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--purple-glow);
  flex-shrink: 0;
}

@media (min-width: 900px) {
  .zkk-premium-icon { width: 120px; height: 120px; }
}

.zkk-premium-icon svg { width: 40px; height: 40px; color: var(--purple-light); }

@media (min-width: 900px) {
  .zkk-premium-icon svg { width: 52px; height: 52px; }
}

.zkk-premium-text .zkk-eyebrow { margin-bottom: 10px; }

.zkk-premium-text h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 750;
  color: #fff;
  margin: 0 0 10px;
  letter-spacing: -0.02em;
}

.zkk-premium-text p {
  color: var(--text-secondary);
  font-size: 14.5px;
  line-height: 1.7;
  max-width: 460px;
  margin: 0 0 22px;
}

.zkk-diamond-stage {
  position: relative;
  display: none;
  width: 220px;
  height: 190px;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

@media (min-width: 900px) {
  .zkk-diamond-stage { display: flex; }
}

.zkk-diamond-stage svg.zkk-diamond {
  width: 92px;
  height: 92px;
  filter: drop-shadow(0 10px 30px rgba(155, 50, 255, 0.45));
}

.zkk-chip {
  position: absolute;
  width: 40px;
  height: 40px;
  border-radius: 11px;
  border: 1px solid var(--border-hover);
  background: rgba(10, 10, 13, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
  animation: zkkFloat 6s ease-in-out infinite;
}

.zkk-chip svg { width: 18px; height: 18px; color: var(--purple-light); }
.zkk-chip.c1 { top: 6px; left: 14px; animation-delay: -1s; }
.zkk-chip.c2 { top: 24px; right: 4px; animation-delay: -3s; }
.zkk-chip.c3 { bottom: 14px; left: 30px; animation-delay: -5s; }
.zkk-chip.c4 { bottom: 0; right: 30px; animation-delay: -2.4s; }

/* ---------------------------------------------------------------------- */
/* Trust bar                                                               */
/* ---------------------------------------------------------------------- */

.zkk-trustbar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding: 34px 0;
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}

@media (min-width: 720px) {
  .zkk-trustbar { grid-template-columns: repeat(4, 1fr); gap: 0; }
}

.zkk-trust-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 6px 26px;
  position: relative;
}

@media (min-width: 720px) {
  .zkk-trust-item:not(:last-child)::after {
    content: "";
    position: absolute;
    right: 0;
    top: 10%;
    bottom: 10%;
    width: 1px;
    background: var(--border-soft);
  }
}

.zkk-trust-item svg {
  width: 26px;
  height: 26px;
  color: var(--purple-light);
  flex-shrink: 0;
}

.zkk-trust-item .title { font-size: 13.5px; font-weight: 700; color: #fff; }
.zkk-trust-item .desc { font-size: 12px; color: var(--text-muted); }

/* ---------------------------------------------------------------------- */
/* Footer                                                                  */
/* ---------------------------------------------------------------------- */

.zkk-footer {
  position: relative;
  z-index: 1;
  background: #080809;
  border-top: 1px solid var(--border-soft);
  padding-top: 64px;
}

.zkk-footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-bottom: 48px;
}

.zkk-footer-grid > * {
  min-width: 0;
  max-width: 100%;
}

@media (min-width: 720px) {
  .zkk-footer-grid { grid-template-columns: 1.4fr repeat(3, 1fr); }
}

@media (min-width: 1000px) {
  .zkk-footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr 1.2fr; }
}

.zkk-footer-brand p {
  color: var(--text-muted);
  font-size: 13.5px;
  line-height: 1.7;
  margin: 14px 0 20px;
  max-width: min(260px, 100%);
  overflow-wrap: anywhere;
}

.zkk-footer-social {
  display: flex;
  gap: 10px;
}

.zkk-footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: color 200ms var(--ease), border-color 200ms var(--ease), background 200ms var(--ease);
}

.zkk-footer-social a:hover {
  color: #fff;
  border-color: var(--border-hover);
  background: rgba(155, 50, 255, 0.08);
}

.zkk-footer-social svg { width: 16px; height: 16px; }

.zkk-footer-col h4 {
  font-size: 12.5px;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 18px;
}

.zkk-footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.zkk-footer-col a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13.5px;
  transition: color 200ms var(--ease);
}

.zkk-footer-col a:hover { color: #fff; }

.zkk-newsletter p {
  color: var(--text-muted);
  font-size: 13.5px;
  line-height: 1.6;
  margin: 14px 0 16px;
  max-width: 240px;
}

.zkk-newsletter-form {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 5px 5px 5px 16px;
  background: rgba(255, 255, 255, 0.02);
  max-width: 280px;
}

.zkk-newsletter-form input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  font-size: 13px;
  font-family: var(--font);
  min-width: 0;
}

.zkk-newsletter-form input::placeholder { color: var(--text-muted); }

.zkk-newsletter-form button {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--gradient-brand);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: transform 200ms var(--ease);
}

.zkk-newsletter-form button:hover { transform: scale(1.06); }
.zkk-newsletter-form button svg { width: 14px; height: 14px; }

.zkk-newsletter-note {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 10px;
  min-height: 14px;
}

.zkk-footer-bottom {
  border-top: 1px solid var(--border-soft);
  padding: 22px 0;
  text-align: center;
}

.zkk-footer-bottom p {
  color: var(--text-muted);
  font-size: 12.5px;
  margin: 0;
}