/* ============================================================
   CSS RESET
   ============================================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  line-height: 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

input,
button,
textarea,
select {
  font: inherit;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}

ul,
ol {
  list-style: none;
}

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

/* ============================================================
   DESIGN TOKENS
   ============================================================ */

:root {
  /* --- Colors --- */
  --color-bg:           #050810;
  --color-bg-1:         #080d1a;
  --color-bg-2:         #0c1220;

  --color-accent-blue:  #3b82f6;
  --color-accent-cyan:  #06b6d4;
  --color-accent-purple:#8b5cf6;

  --color-text:         #e2e8f0;
  --color-text-muted:   #64748b;
  --color-text-faint:   #334155;

  --color-border:       rgba(255, 255, 255, 0.06);
  --color-border-glow:  rgba(59, 130, 246, 0.3);

  /* --- Gradients --- */
  --gradient-brand: linear-gradient(
    135deg,
    var(--color-accent-blue),
    var(--color-accent-cyan)
  );
  --gradient-brand-alt: linear-gradient(
    135deg,
    var(--color-accent-purple),
    var(--color-accent-blue)
  );
  --gradient-surface: linear-gradient(
    160deg,
    var(--color-bg-1),
    var(--color-bg-2)
  );

  /* --- Typography --- */
  --font-heading: 'Syne', system-ui, sans-serif;
  --font-mono:    'DM Mono', 'Fira Mono', monospace;
  --font-body:    system-ui, -apple-system, sans-serif;

  /* --- Type scale (fluid) --- */
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;
  --text-4xl:  2.25rem;
  --text-5xl:  3rem;
  --text-6xl:  3.75rem;

  /* --- Spacing --- */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* --- Layout --- */
  --max-width:    1200px;
  --nav-height:   72px;
  --section-pad:  var(--space-24);
  --gutter:       var(--space-6);

  /* --- Borders --- */
  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-xl:  20px;
  --radius-full: 9999px;

  /* --- Shadows & glows --- */
  --glow-blue:   0 0 40px rgba(59, 130, 246, 0.15);
  --glow-cyan:   0 0 40px rgba(6, 182, 212, 0.15);
  --glow-purple: 0 0 40px rgba(139, 92, 246, 0.15);
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.5), 0 4px 16px rgba(0, 0, 0, 0.4);

  /* --- Transitions --- */
  --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.45, 0, 0.55, 1);
  --duration-fast:   150ms;
  --duration-base:   250ms;
  --duration-slow:   400ms;
}

/* ============================================================
   BASE STYLES
   ============================================================ */

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
}

/* --- Headings --- */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

h1 { font-size: clamp(var(--text-4xl), 6vw, var(--text-6xl)); }
h2 { font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl)); }
h3 { font-size: clamp(var(--text-xl),  3vw, var(--text-3xl)); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

/* --- Body copy --- */

p {
  line-height: 1.7;
  color: var(--color-text-muted);
}

/* --- Mono / label --- */

.label,
.mono {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* --- Links --- */

a {
  transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
  color: var(--color-accent-blue);
}

/* --- Focus visible --- */

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

/* --- Selection --- */

::selection {
  background-color: rgba(59, 130, 246, 0.25);
  color: #fff;
}

/* --- Scrollbar --- */

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-text-faint);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

section {
  padding-block: var(--section-pad);
}

/* ============================================================
   NAVBAR — base structure
   ============================================================ */

#navbar {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  height: var(--nav-height);
  z-index: 100;
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background-color: rgba(5, 8, 16, 0.8);
  transition: background-color var(--duration-base) var(--ease-out);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-text);
}

.nav-logo span {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  transition: color var(--duration-fast) var(--ease-out);
}

.nav-links a:hover {
  color: var(--color-text);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-5);
  background: var(--gradient-brand);
  color: #fff;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: var(--radius-full);
  transition: opacity var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}

.nav-cta:hover {
  color: #fff;
  opacity: 0.88;
  box-shadow: var(--glow-blue);
}

/* ============================================================
   BUTTONS
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  cursor: pointer;
  transition: opacity var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out),
              background-color var(--duration-fast) var(--ease-out);
}

.btn--primary {
  background: var(--gradient-brand);
  color: #fff;
  border-color: transparent;
}

.btn--primary:hover {
  color: #fff;
  opacity: 0.88;
  box-shadow: var(--glow-blue);
}

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

.btn--ghost:hover {
  color: var(--color-text);
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: var(--glow-blue);
}

/* ============================================================
   HERO
   ============================================================ */

#hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 100svh;
  padding-block-start: var(--nav-height);
  overflow: hidden;
}

/* Ambient background glow */
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%,   rgba(59, 130, 246, 0.08) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 80% 60%,  rgba(139, 92, 246, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 20% 80%,  rgba(6, 182, 212, 0.06)  0%, transparent 60%);
  pointer-events: none;
}

/* Grid texture overlay */
#hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 40%, black 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 40%, black 20%, transparent 80%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-8);
  padding-block: var(--space-20);
}

/* --- Badge --- */

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-full);
}

.hero-badge__dot {
  display: block;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-accent-cyan);
  box-shadow: 0 0 6px var(--color-accent-cyan);
  animation: pulse-dot 2.4s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1;   transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.8); }
}

/* --- Heading --- */

.hero-heading {
  max-width: 16ch;
  line-height: 1.0;
}

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

/* --- Subheading --- */

.hero-sub {
  max-width: 54ch;
  font-size: clamp(var(--text-base), 2vw, var(--text-lg));
  line-height: 1.7;
  color: var(--color-text-muted);
}

/* --- CTA row --- */

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  justify-content: center;
}

/* --- Stats --- */

.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  margin-block-start: var(--space-4);
  flex-wrap: wrap;
  justify-content: center;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}

.hero-stat__number {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.hero-stat__label {
  color: var(--color-text-muted);
}

.hero-stats__divider {
  width: 1px;
  height: 32px;
  background: var(--color-border);
}

/* ============================================================
   SHARED SECTION UTILITIES
   ============================================================ */

.section-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-4);
  margin-block-end: var(--space-16);
}

.section-label {
  color: var(--color-accent-blue);
}

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

/* ============================================================
   PRODUCTS
   ============================================================ */

#products {
  position: relative;
}

/* --- Grid --- */

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

@media (max-width: 1024px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .products-grid {
    grid-template-columns: 1fr;
  }
}

/* --- Card base --- */

.product-card {
  position: relative;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  background: var(--gradient-surface);
  overflow: hidden;
  transition: border-color var(--duration-base) var(--ease-out),
              transform      var(--duration-base) var(--ease-out);
}

.product-card:hover {
  transform: translateY(-4px);
}

.product-card__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding: var(--space-8);
  height: 100%;
}

/* --- Glow layer (revealed on hover) --- */

.product-card__glow {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-out);
  pointer-events: none;
  border-radius: inherit;
}

.product-card:hover .product-card__glow {
  opacity: 1;
}

/* Per-accent glow colours */
.product-card--blue  { --card-accent: var(--color-accent-blue);   --card-glow: var(--glow-blue); }
.product-card--purple{ --card-accent: var(--color-accent-purple); --card-glow: var(--glow-purple); }
.product-card--cyan  { --card-accent: var(--color-accent-cyan);   --card-glow: var(--glow-cyan); }

.product-card--blue:hover   { border-color: rgba(59,  130, 246, 0.35); box-shadow: var(--glow-blue); }
.product-card--purple:hover { border-color: rgba(139,  92, 246, 0.35); box-shadow: var(--glow-purple); }
.product-card--cyan:hover   { border-color: rgba(6,  182, 212, 0.35); box-shadow: var(--glow-cyan); }

.product-card--blue   .product-card__glow { background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(59,  130, 246, 0.07) 0%, transparent 70%); }
.product-card--purple .product-card__glow { background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(139,  92, 246, 0.07) 0%, transparent 70%); }
.product-card--cyan   .product-card__glow { background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(6,  182, 212, 0.07) 0%, transparent 70%); }

/* --- Card header row --- */

.product-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* --- Icon bubble --- */

.product-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: var(--card-accent);
}

/* --- Status badge --- */

.product-card__status {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
}

.product-card__status--active {
  background: rgba(6, 182, 212, 0.1);
  color: var(--color-accent-cyan);
  border: 1px solid rgba(6, 182, 212, 0.25);
}

.product-card__status--planning {
  background: rgba(139, 92, 246, 0.1);
  color: var(--color-accent-purple);
  border: 1px solid rgba(139, 92, 246, 0.25);
}

/* --- Name --- */

.product-card__name {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

/* --- Description --- */

.product-card__desc {
  font-size: var(--text-sm);
  line-height: 1.65;
  color: var(--color-text-muted);
  flex: 1;
}

/* --- Feature list --- */

.product-card__features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-block-start: auto;
}

.product-card__features li {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  transition: color var(--duration-fast) var(--ease-out),
              border-color var(--duration-fast) var(--ease-out);
}

.product-card:hover .product-card__features li {
  color: var(--card-accent);
  border-color: rgba(255, 255, 255, 0.1);
}

/* ============================================================
   ROADMAP
   ============================================================ */

#roadmap {
  position: relative;
}

/* --- Timeline wrapper (positions spine + items) --- */

.roadmap-timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

/* --- Vertical spine --- */

.roadmap-spine {
  position: absolute;
  inset-block: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  background: linear-gradient(
    to bottom,
    transparent,
    var(--color-accent-blue) 8%,
    var(--color-accent-purple) 50%,
    var(--color-accent-cyan) 92%,
    transparent
  );
  opacity: 0.3;
}

/* --- Row: each phase is a flex row --- */

.roadmap-item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 0 1fr;
  column-gap: 0;
  align-items: center;
}

/* Node sits in the centre column */
.roadmap-node {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.roadmap-node__ring {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-full);
  border: 1px solid rgba(59, 130, 246, 0.4);
  animation: ring-pulse 3s ease-in-out infinite;
}

.roadmap-node__dot {
  display: block;
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-accent-blue);
  box-shadow: 0 0 8px var(--color-accent-blue);
}

/* Active / current node glows brighter */
.roadmap-item--current .roadmap-node__dot {
  background: var(--color-accent-cyan);
  box-shadow: 0 0 12px var(--color-accent-cyan);
}

.roadmap-item--current .roadmap-node__ring {
  border-color: rgba(6, 182, 212, 0.6);
}

@keyframes ring-pulse {
  0%, 100% { transform: scale(1);   opacity: 0.6; }
  50%       { transform: scale(1.6); opacity: 0; }
}

/* --- Card placement: left items go in col 1, right in col 3 --- */

.roadmap-item--left  { grid-template-columns: 1fr 16px 1fr; }
.roadmap-item--right { grid-template-columns: 1fr 16px 1fr; }

/* Left card occupies column 1 and aligns text to the right */
.roadmap-item--left .roadmap-card {
  grid-column: 1;
  margin-inline-end: var(--space-12);
  text-align: right;
  align-items: flex-end;
}

/* Right card occupies column 3 */
.roadmap-item--right .roadmap-card {
  grid-column: 3;
  margin-inline-start: var(--space-12);
  text-align: left;
  align-items: flex-start;
}

/* --- Card --- */

.roadmap-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  background: var(--gradient-surface);
  transition: border-color var(--duration-base) var(--ease-out),
              box-shadow    var(--duration-base) var(--ease-out),
              transform     var(--duration-base) var(--ease-out);
}

.roadmap-card:hover {
  border-color: rgba(59, 130, 246, 0.3);
  box-shadow: var(--glow-blue);
  transform: translateY(-3px);
}

/* --- Phase label row (phase number + status badge side by side) --- */

.roadmap-card__phase {
  color: var(--color-text-faint);
}

.roadmap-item--left .roadmap-card > * {
  align-self: flex-end;
}

.roadmap-item--right .roadmap-card > * {
  align-self: flex-start;
}

/* --- Status badge --- */

.roadmap-card__status {
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  width: fit-content;
}

.roadmap-card__status--current {
  background: rgba(6,  182, 212, 0.1);
  color: var(--color-accent-cyan);
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.roadmap-card__status--next {
  background: rgba(59, 130, 246, 0.1);
  color: var(--color-accent-blue);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.roadmap-card__status--soon {
  background: rgba(139, 92, 246, 0.1);
  color: var(--color-accent-purple);
  border: 1px solid rgba(139, 92, 246, 0.3);
}

.roadmap-card__status--future {
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

/* --- Title --- */

.roadmap-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

/* --- Milestone list --- */

.roadmap-card__items {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-block-start: var(--space-1);
}

.roadmap-card__items li {
  position: relative;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding-inline-start: var(--space-5);
  line-height: 1.5;
}

/* Right-side cards: bullet on the left */
.roadmap-item--right .roadmap-card__items li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-text-faint);
  transition: background var(--duration-fast) var(--ease-out);
}

.roadmap-item--right .roadmap-card:hover .roadmap-card__items li::before {
  background: var(--color-accent-blue);
}

/* Left-side cards: bullet on the right */
.roadmap-item--left .roadmap-card__items li {
  padding-inline-start: 0;
  padding-inline-end: var(--space-5);
}

.roadmap-item--left .roadmap-card__items li::after {
  content: '';
  position: absolute;
  right: 0;
  top: 0.45em;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-text-faint);
  transition: background var(--duration-fast) var(--ease-out);
}

.roadmap-item--left .roadmap-card:hover .roadmap-card__items li::after {
  background: var(--color-accent-blue);
}

/* ============================================================
   ROADMAP — mobile (single column)
   ============================================================ */

@media (max-width: 768px) {
  .roadmap-spine {
    left: 20px;
    transform: none;
  }

  .roadmap-item,
  .roadmap-item--left,
  .roadmap-item--right {
    grid-template-columns: 40px 1fr;
    grid-template-rows: 1fr;
  }

  .roadmap-node {
    position: static;
    transform: none;
    grid-column: 1;
    justify-self: center;
  }

  .roadmap-item--left .roadmap-card,
  .roadmap-item--right .roadmap-card {
    grid-column: 2;
    margin-inline: 0;
    margin-inline-start: var(--space-4);
    text-align: left;
    align-items: flex-start;
  }

  .roadmap-item--left .roadmap-card > * {
    align-self: flex-start;
  }

  .roadmap-item--left .roadmap-card__items li {
    padding-inline-start: var(--space-5);
    padding-inline-end: 0;
  }

  .roadmap-item--left .roadmap-card__items li::after { display: none; }

  .roadmap-item--left .roadmap-card__items li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.45em;
    width: 6px;
    height: 6px;
    border-radius: var(--radius-full);
    background: var(--color-text-faint);
    display: block;
  }

  .roadmap-item--left .roadmap-card:hover .roadmap-card__items li::before {
    background: var(--color-accent-blue);
  }
}

/* ============================================================
   ABOUT
   ============================================================ */

#about {
  position: relative;
}

/* --- Two-column layout --- */

.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-20);
  align-items: center;
}

@media (max-width: 900px) {
  .about-layout {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }
}

/* --- Left: content column --- */

.about-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.about-content h2 {
  line-height: 1.05;
}

.about-content p {
  font-size: var(--text-base);
  line-height: 1.75;
  color: var(--color-text-muted);
}

/* --- Tag row --- */

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-block-start: var(--space-2);
}

.about-tag {
  font-size: var(--text-sm);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-text-muted);
  transition: color          var(--duration-fast) var(--ease-out),
              border-color   var(--duration-fast) var(--ease-out),
              background     var(--duration-fast) var(--ease-out);
}

.about-tag:hover {
  color: var(--color-text);
  border-color: rgba(59, 130, 246, 0.35);
  background: rgba(59, 130, 246, 0.06);
}

.about-tag--mono {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-accent-cyan);
  border-color: rgba(6, 182, 212, 0.2);
  background: rgba(6, 182, 212, 0.05);
}

.about-tag--mono:hover {
  color: var(--color-accent-cyan);
  border-color: rgba(6, 182, 212, 0.45);
  background: rgba(6, 182, 212, 0.1);
}

/* --- Right: panel card --- */

.about-panel {
  display: flex;
  justify-content: center;
}

.about-panel__card {
  width: 100%;
  max-width: 420px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  background: var(--gradient-surface);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: 0;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

/* Subtle top glow */
.about-panel__card::before {
  content: '';
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(59, 130, 246, 0.5),
    transparent
  );
}

.about-panel__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-4);
  padding-block: var(--space-5);
}

.about-panel__divider {
  height: 1px;
  background: var(--color-border);
}

.about-panel__key {
  color: var(--color-text-faint);
  white-space: nowrap;
  flex-shrink: 0;
}

.about-panel__val {
  font-size: var(--text-sm);
  color: var(--color-text);
  text-align: right;
}

.about-panel__val--live {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-accent-cyan);
}

.about-panel__dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: var(--radius-full);
  background: var(--color-accent-cyan);
  box-shadow: 0 0 6px var(--color-accent-cyan);
  animation: pulse-dot 2.4s ease-in-out infinite;
}

/* ============================================================
   LANGUAGE TOGGLE
   ============================================================ */

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: color         var(--duration-fast) var(--ease-out),
              border-color  var(--duration-fast) var(--ease-out),
              background    var(--duration-fast) var(--ease-out);
  user-select: none;
  flex-shrink: 0;
}

.lang-toggle:hover {
  color: var(--color-text);
  border-color: rgba(59, 130, 246, 0.4);
  background: rgba(59, 130, 246, 0.06);
}

.lang-toggle__flag {
  font-size: 13px;
  line-height: 1;
}

/* ============================================================
   CONTACT
   ============================================================ */

#contact {
  position: relative;
}

.contact-sub {
  text-align: center;
  max-width: 52ch;
  margin-inline: auto;
  margin-block-start: calc(var(--space-6) * -1);
  margin-block-end: var(--space-16);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text-muted);
}

/* --- Two-column layout --- */

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-10);
  align-items: start;
}

@media (max-width: 860px) {
  .contact-layout {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

/* --- Contact info panel --- */

.contact-info {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  background: var(--gradient-surface);
  overflow: hidden;
}

.contact-info__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-6) var(--space-6);
}

.contact-info__divider {
  height: 1px;
  background: var(--color-border);
}

.contact-info__key {
  color: var(--color-text-faint);
}

.contact-info__val {
  font-size: var(--text-sm);
  color: var(--color-text);
  word-break: break-all;
  transition: color var(--duration-fast) var(--ease-out);
}

.contact-info__val:hover {
  color: var(--color-accent-blue);
}

/* --- Form --- */

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.contact-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

@media (max-width: 560px) {
  .contact-form__row {
    grid-template-columns: 1fr;
  }
}

.contact-form__field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.contact-form__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.contact-form__input {
  width: 100%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  color: var(--color-text);
  font-size: var(--text-sm);
  line-height: 1.5;
  transition: border-color var(--duration-fast) var(--ease-out),
              box-shadow    var(--duration-fast) var(--ease-out),
              background    var(--duration-fast) var(--ease-out);
  outline: none;
  -webkit-appearance: none;
}

.contact-form__input::placeholder {
  color: var(--color-text-faint);
}

.contact-form__input:hover {
  border-color: rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
}

.contact-form__input:focus {
  border-color: rgba(59, 130, 246, 0.5);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
  background: rgba(59, 130, 246, 0.04);
}

.contact-form__textarea {
  resize: vertical;
  min-height: 120px;
  font-family: inherit;
}

.contact-form__submit {
  align-self: flex-start;
  padding-inline: var(--space-10);
}

/* ============================================================
   FOOTER
   ============================================================ */

#footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-8);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer-copy {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.footer-domain {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  transition: color var(--duration-fast) var(--ease-out);
}

.footer-domain:hover {
  color: var(--color-accent-cyan);
}