/* =============================================================================
   AK Portfolio — design system
   -----------------------------------------------------------------------------
   1. Tokens (темы)
   2. Reset / base
   3. Layout primitives
   4. Typography templates
   5. Components (btn, surface, chip, cover, …)
   6. Compositions (header, hero, cards, contact, hub, …)
   7. Responsive
   ============================================================================= */

/* ---------- 1. Tokens ---------- */
:root,
[data-theme="dark"] {
  /* чуть светлее «уголь» — не чёрная яма */
  --bg: #1a1d21;
  --bg-elev: #22262b;
  --bg-card: #252a30;
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #f0f2f4;
  --text-muted: #9aa3ad;
  --text-link: #c0cdd8;
  --surface-soft: rgba(255, 255, 255, 0.06);

  /* solid action: светлая плашка + тёмный текст (читаемо на dark) */
  --action-bg: #eef0f2;
  --action-fg: #1a1d21;
  --action-bg-hover: #ffffff;
  --action-fg-hover: #1a1d21;

  --header-bg: rgba(26, 29, 33, 0.92);
  --mobile-nav-bg: rgba(26, 29, 33, 0.98);
  --cover-fg: rgba(255, 255, 255, 0.94);
  --status-ok: #7aaf8a;

  --font: "DM Sans", system-ui, sans-serif;
  --font-display: "Syne", var(--font);
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --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;

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 18px;
  --radius-pill: 999px;

  --max: 1120px;
  --header-h: 64px;

  --shadow-none: none;
  --transition: 0.15s ease;

  color-scheme: dark;
}

[data-theme="light"] {
  --bg: #f3f4f5;
  --bg-elev: #ffffff;
  --bg-card: #ffffff;
  --line: rgba(18, 20, 22, 0.09);
  --line-strong: rgba(18, 20, 22, 0.15);
  --text: #16181a;
  --text-muted: #5c636a;
  --text-link: #2f4458;
  --surface-soft: rgba(18, 20, 22, 0.03);

  /* solid action: тёмная плашка + светлый текст */
  --action-bg: #16181a;
  --action-fg: #f3f4f5;
  --action-bg-hover: #2a2e32;
  --action-fg-hover: #ffffff;

  --header-bg: rgba(243, 244, 245, 0.92);
  --mobile-nav-bg: rgba(255, 255, 255, 0.98);
  --cover-fg: rgba(255, 255, 255, 0.92);

  color-scheme: light;
}

/* ---------- 2. Reset / base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  transition: background 0.2s ease, color 0.15s ease;
}

/* ---------- Modal (bot / contact) ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 20000;
  display: grid;
  place-items: center;
  padding: 1rem;
}

.modal[hidden] {
  display: none !important;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
}

.modal__panel {
  position: relative;
  z-index: 1;
  width: min(420px, 100%);
  padding: 1.4rem 1.35rem 1.25rem;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

.modal__close {
  position: absolute;
  top: 0.7rem;
  right: 0.7rem;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  font-size: 1.2rem;
  line-height: 1;
}

.modal__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 1.5rem 0.45rem 0;
  color: var(--text);
}

.modal__lead {
  margin: 0 0 1.1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.modal__form {
  display: grid;
  gap: 0.65rem;
}

.modal__form label {
  display: grid;
  gap: 0.3rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
}

.modal__form input,
.modal__form textarea {
  font: inherit;
  font-weight: 500;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 0.7rem 0.85rem;
  width: 100%;
}

.modal__form input:focus,
.modal__form textarea:focus {
  outline: 2px solid rgba(160, 180, 200, 0.35);
  outline-offset: 1px;
}

.modal__form textarea {
  min-height: 88px;
  resize: vertical;
}

.modal__hp {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  overflow: hidden;
}

.modal__status {
  min-height: 1.25em;
  font-size: 0.85rem;
  margin: 0.35rem 0 0;
}

.modal__status.is-ok {
  color: var(--status-ok);
}

.modal__status.is-err {
  color: #e07070;
}

.modal__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.35rem;
}

body.modal-open {
  overflow: hidden;
}

/* ---------- Theme wave (Telegram-like) ---------- */
/* View Transitions: круг раскрывается от точки клика */
::view-transition-old(root),
::view-transition-new(root) {
  animation: none;
  mix-blend-mode: normal;
}

::view-transition-old(root) {
  z-index: 1;
}

::view-transition-new(root) {
  z-index: 9999;
}

/* на время волны не мигаем body transition */
html.theme-animating body {
  transition: none;
}

/* Fallback без View Transitions API */
.theme-wave {
  position: fixed;
  inset: 0;
  z-index: 100000;
  pointer-events: none;
  background: var(--wave-color, #111314);
  clip-path: circle(0px at var(--wave-x, 100%) var(--wave-y, 0%));
  transition: clip-path 0.48s cubic-bezier(0.32, 0.72, 0, 1);
}

.theme-wave.is-expanding {
  clip-path: circle(150vmax at var(--wave-x, 100%) var(--wave-y, 0%));
}

.theme-wave.is-done {
  opacity: 0;
  transition: none;
}

@media (prefers-reduced-motion: reduce) {
  .theme-wave {
    transition: none;
  }
}

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

a {
  color: var(--text-link);
  text-decoration: none;
}

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

/* ---------- 3. Layout primitives ---------- */
.container {
  width: min(var(--max), calc(100% - 2rem));
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--stack-gap, var(--space-4));
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--cluster-gap, var(--space-3));
}

.grid-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

.grid-hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-8);
  align-items: center;
}

/* ---------- 4. Typography templates ---------- */
.t-kicker {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.t-title {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.12;
  color: var(--text);
  margin: 0;
}

.t-title--xl {
  font-size: clamp(2.2rem, 4.5vw, 3.15rem);
  letter-spacing: -0.035em;
  line-height: 1.08;
}

.t-title--lg {
  font-size: clamp(1.55rem, 2.8vw, 2.05rem);
}

.t-title--md {
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.t-title--sm {
  font-size: 1rem;
  letter-spacing: -0.02em;
  font-weight: 650;
}

.t-body {
  margin: 0;
  color: var(--text);
  font-size: 1rem;
}

.t-muted {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.t-muted--sm {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.t-lead {
  margin: 0;
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 34rem;
  line-height: 1.55;
}

.t-strong {
  color: var(--text);
  font-weight: 600;
}

/* ---------- 5. Components ---------- */

/* --- Button (единый шаблон; specificity выше .nav a) --- */
.btn,
a.btn,
button.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.15rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.9rem;
  line-height: 1.2;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: var(--shadow-none);
  background-image: none !important;
  text-decoration: none;
  transition:
    background var(--transition),
    color var(--transition),
    border-color var(--transition);
}

/* Primary: всегда action tokens — читаемый контраст */
.btn--primary,
a.btn--primary,
a.btn--primary:visited,
button.btn--primary,
.nav a.btn--primary,
.nav a.btn--primary:visited,
.nav a.btn--primary:hover {
  background: var(--action-bg) !important;
  background-image: none !important;
  color: var(--action-fg) !important;
  border-color: var(--action-bg) !important;
}

.btn--primary:hover,
a.btn--primary:hover,
button.btn--primary:hover,
.nav a.btn--primary:hover {
  background: var(--action-bg-hover) !important;
  color: var(--action-fg-hover) !important;
  border-color: var(--action-bg-hover) !important;
}

/* Ghost / secondary */
.btn--ghost,
a.btn--ghost,
a.btn--ghost:visited,
button.btn--ghost,
.nav a.btn--ghost {
  background: transparent !important;
  color: var(--text) !important;
  border-color: var(--line-strong) !important;
}

.btn--ghost:hover,
a.btn--ghost:hover,
.nav a.btn--ghost:hover {
  background: var(--surface-soft) !important;
  color: var(--text) !important;
  border-color: var(--line-strong) !important;
}

.btn--sm {
  padding: 0.48rem 0.9rem;
  font-size: 0.82rem;
  border-radius: 7px;
}

/* Текстовая ссылка-кнопка (почта без палева адреса) */
.link-btn {
  appearance: none;
  border: 0;
  background: none;
  padding: 0;
  margin: 0;
  font: inherit;
  font-weight: 600;
  color: var(--text-link);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.link-btn:hover {
  color: var(--text);
}

.contact-mini .link-btn,
.contact-side .link-btn {
  font-weight: 600;
}

/* --- Surface --- */
.surface {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

.surface--pad {
  padding: var(--space-5) var(--space-5);
}

.surface--pad-lg {
  padding: var(--space-6) var(--space-6);
}

.surface--elev {
  background: var(--bg-elev);
}

.surface--inset {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

/* --- Chip / tag --- */
.chip,
.tag {
  display: inline-flex;
  align-items: center;
  font-size: 0.7rem;
  color: var(--text-muted);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  padding: 0.2rem 0.55rem;
  background: transparent;
}

.chip {
  font-family: var(--font-mono);
  padding: 0.32rem 0.65rem;
}

/* --- Cover (шапка карточки проекта, без inline styles) --- */
.cover {
  aspect-ratio: 16 / 10;
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
  color: var(--cover-fg);
  background: #22262a;
}

.cover__title {
  position: relative;
  z-index: 1;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
  padding: 0 1rem;
  text-align: center;
}

.cover__badge {
  position: absolute;
  left: 0.8rem;
  top: 0.8rem;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.22rem 0.48rem;
  border-radius: var(--radius-pill);
  color: rgba(255, 255, 255, 0.75);
}

/* нейтральная палитра обложек — чуть светлее фона dark */
.cover--1 { background: linear-gradient(145deg, #3a424c, #2a3038); }
.cover--2 { background: linear-gradient(145deg, #36444c, #283038); }
.cover--3 { background: linear-gradient(145deg, #403c38, #2e2a28); }
.cover--4 { background: linear-gradient(145deg, #3a3844, #2a2832); }
.cover--5 { background: linear-gradient(145deg, #363c46, #282e36); }
.cover--6 { background: linear-gradient(145deg, #383e46, #2a3038); }

/* --- Icon button (theme, burger) --- */
.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 9px;
  border: 1px solid var(--line-strong);
  background: var(--bg-elev);
  color: var(--text);
  cursor: pointer;
  display: grid;
  place-items: center;
  padding: 0;
  flex-shrink: 0;
  transition: border-color var(--transition), background var(--transition);
}

.icon-btn:hover {
  border-color: var(--text-muted);
  background: var(--bg-card);
}

.icon-btn svg {
  width: 18px;
  height: 18px;
  display: block;
}

/* ---------- 6. Compositions ---------- */

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, background 0.2s;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  width: min(var(--max), calc(100% - 2rem));
  margin-inline: auto;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  font-weight: 600;
  letter-spacing: -0.02em;
  font-size: 0.95rem;
}

.brand:hover {
  color: var(--text);
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--bg-elev);
  border: 1px solid var(--line-strong);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--text);
  letter-spacing: -0.04em;
}

.nav {
  display: flex;
  gap: 0.25rem 1.2rem;
  align-items: center;
}

.nav a:not(.btn) {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.9rem;
}

.nav a:not(.btn):hover {
  color: var(--text);
}

.nav .btn {
  margin-left: 0.35rem;
}

.site-switch {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 500;
}

.site-switch:hover {
  color: var(--text);
}

/* Theme toggle icons */
.theme-toggle .icon-sun {
  display: none;
}

.theme-toggle .icon-moon {
  display: block;
}

[data-theme="light"] .theme-toggle .icon-sun {
  display: block;
}

[data-theme="light"] .theme-toggle .icon-moon {
  display: none;
}

.burger {
  display: none;
  gap: 5px;
}

.burger span {
  display: block;
  width: 16px;
  height: 1.5px;
  background: var(--text);
  border-radius: 2px;
}

/* Hero */
.hero {
  padding: 3.25rem 0 2.75rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: var(--space-4);
}

.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--status-ok);
  opacity: 0.9;
}

.hero h1 {
  margin: 0 0 var(--space-4);
}

.hero h1 em {
  font-style: normal;
  color: var(--text);
}

.hero-lead {
  margin: 0 0 var(--space-5);
}

.hero-actions {
  margin-bottom: var(--space-6);
}

.hero-card .sub {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin: 0 0 var(--space-4);
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.55rem;
  margin-bottom: var(--space-4);
}

.stat {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.7rem 0.5rem;
  text-align: center;
}

.stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: -0.03em;
  color: var(--text);
  font-weight: 700;
}

.stat span {
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* Квадратики-лейблы (аудитория и т.п.) */
.stat--phrase {
  display: grid;
  place-items: center;
  min-height: 3.4rem;
  padding: 0.55rem 0.35rem;
}

.stat--phrase span {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.25;
  text-align: center;
}

.hero-card__note {
  margin: 0 0 var(--space-4);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}

.hero-card .stat-row {
  margin-bottom: var(--space-3);
}

.contact-mini {
  display: grid;
  gap: 0.45rem;
  font-size: 0.88rem;
}

.contact-mini a,
.contact-mini .link-btn {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--text);
  padding: 0.5rem 0.65rem;
  border-radius: 10px;
  background: var(--bg);
  border: 1px solid var(--line);
  text-decoration: none;
  width: 100%;
  text-align: left;
  font-weight: 500;
}

.contact-mini a:hover,
.contact-mini .link-btn:hover {
  border-color: var(--line-strong);
  color: var(--text);
}

.contact-mini .ico {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  display: grid;
  place-items: center;
  background: var(--surface-soft);
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* Sections */
section {
  padding: 3.25rem 0;
  position: relative;
  z-index: 1;
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.section-head .t-kicker {
  margin-bottom: 0.35rem;
}

.section-head p {
  margin: 0.4rem 0 0;
  color: var(--text-muted);
  max-width: 34rem;
}

/* Hub */
.hub {
  min-height: calc(100vh - var(--header-h) - 80px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 3rem 0 4rem;
}

.hub-intro {
  text-align: center;
  margin-bottom: 2rem;
}

.hub-intro h1 {
  margin: 0 0 0.6rem;
}

.hub-intro p {
  margin: 0 auto;
  color: var(--text-muted);
  max-width: 28rem;
}

.hub-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  max-width: 760px;
  margin: 0 auto;
}

.hub-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 1.6rem 1.5rem 1.4rem;
  color: var(--text);
  transition: border-color var(--transition), transform var(--transition);
  min-height: 200px;
}

.hub-card:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
  color: var(--text);
}

.hub-card .t-kicker {
  margin-bottom: 0.6rem;
}

.hub-card h2 {
  margin: 0 0 0.55rem;
  font-family: var(--font-display);
  font-size: 1.55rem;
  letter-spacing: -0.03em;
  font-weight: 700;
}

.hub-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  flex: 1;
  line-height: 1.5;
}

.hub-card .go {
  margin-top: 1.2rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text);
}

.hub-card .go::after {
  content: " →";
}

/* Вложения на хабе */
.hub-attachments {
  max-width: 760px;
  margin: 0 auto;
}

.attachments-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
}

.attach-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.9rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  transition: border-color var(--transition);
}

.attach-item:hover {
  border-color: var(--line-strong);
  color: var(--text);
}

.attach-item strong {
  font-size: 0.95rem;
}

.attach-item span {
  font-size: 0.78rem;
  color: var(--text-muted);
}

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

/* Project card composition */
.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition);
}

.card:hover {
  border-color: var(--line-strong);
}

.card__body {
  padding: 1.05rem 1.1rem 1.15rem;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 0.5rem;
}

.card__body h3 {
  margin: 0;
}

.card__body p {
  margin: 0;
  flex: 1;
}

.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.card__actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.3rem;
}

/* Resume */
.resume {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-elev);
}

.resume-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: var(--space-4);
}

.resume-block h3 {
  font-family: var(--font-display);
  margin: 0 0 var(--space-4);
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  font-weight: 700;
}

.timeline {
  display: grid;
  gap: var(--space-4);
}

.tl-item {
  position: relative;
  padding-left: 1rem;
  border-left: 1px solid var(--line-strong);
}

.tl-item::before {
  content: "";
  position: absolute;
  left: -3.5px;
  top: 0.4rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-muted);
}

.tl-item .when {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: 0.2rem;
}

.tl-item strong {
  display: block;
  margin-bottom: 0.25rem;
  font-weight: 600;
}

.tl-item p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.skill-groups {
  display: grid;
  gap: var(--space-4);
}

.skill-group h4 {
  margin: 0 0 0.4rem;
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.skill {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.65rem;
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text);
}

/* About + contact */
.about-text {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 48rem;
}

.about-text p {
  margin: 0 0 0.9rem;
}

/* Stack list (sites) */
.stack-block {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.stack-block .skill-groups {
  gap: var(--space-5);
}

.stack-block__note {
  margin: 0;
  padding-top: var(--space-2);
  border-top: 1px solid var(--line);
}

/* Deal flow (vertical scheme: make → show → pay → handoff) */
.deal-flow {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: 560px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.deal-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-5);
  align-items: start;
  padding: var(--space-5) var(--space-6);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--bg-card);
  position: relative;
}

.deal-step__rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 2.4rem;
  padding-top: 0.1rem;
}

.deal-step__n {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--action-fg);
  background: var(--action-bg);
  flex-shrink: 0;
}

.deal-step__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 0;
  padding-top: 0.25rem;
}

.deal-step__body h3 {
  margin: 0;
}

.deal-step__body p {
  margin: 0;
}

.deal-step__badge {
  align-self: flex-start;
  margin-top: var(--space-1);
  padding: 0.28rem 0.7rem;
  border-radius: var(--radius-pill);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--status-ok);
  background: color-mix(in srgb, var(--status-ok) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--status-ok) 35%, transparent);
}

.deal-step--pay {
  border-color: color-mix(in srgb, var(--status-ok) 40%, var(--line));
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--status-ok) 12%, transparent);
}

.deal-step--done .deal-step__n {
  background: var(--status-ok);
  color: #0f1612;
}

.deal-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  height: 2.4rem;
  margin: 0;
  color: var(--text-muted);
  list-style: none;
}

.deal-arrow__stem {
  width: 2px;
  flex: 1;
  min-height: 0.55rem;
  background: linear-gradient(
    to bottom,
    transparent,
    var(--line-strong) 20%,
    var(--line-strong) 80%,
    transparent
  );
}

.deal-arrow__head {
  font-size: 1.05rem;
  line-height: 1;
  font-weight: 700;
  color: var(--text-muted);
  transform: translateY(-1px);
}

@media (max-width: 640px) {
  .deal-step {
    grid-template-columns: auto 1fr;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-5);
  }

  .deal-step__n {
    width: 2.1rem;
    height: 2.1rem;
    font-size: 0.72rem;
  }
}

.deal-terms {
  margin: var(--space-8) auto 0;
  max-width: 560px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
}

.deal-terms h3 {
  margin: 0 0 var(--space-4);
}

.deal-terms__list {
  margin: 0;
  padding: 0 0 0 1.15rem;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.deal-terms__list li::marker {
  color: var(--text-muted);
}

.deal-terms__list strong {
  color: var(--text);
  font-weight: 600;
}

/* Client pipeline steps */
.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.process-step {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-height: 100%;
}

.process-step__n {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.process-step h3 {
  margin: 0;
}

.process-step p {
  margin: 0;
  flex: 1;
}

.process-step--wide {
  grid-column: 1 / -1;
}

@media (max-width: 960px) {
  .process-steps {
    grid-template-columns: 1fr 1fr;
  }

  .process-step--wide {
    grid-column: 1 / -1;
  }
}

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

.contact-box {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.4rem;
  align-items: center;
}

.contact-box h2 {
  font-family: var(--font-display);
  margin: 0 0 0.45rem;
  letter-spacing: -0.03em;
  font-size: 1.55rem;
  font-weight: 700;
}

.contact-box > div > p {
  margin: 0 0 1rem;
  color: var(--text-muted);
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.contact-side {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.05rem;
  font-size: 0.9rem;
}

.contact-side div {
  margin-bottom: 0.65rem;
}

.contact-side div:last-child {
  margin-bottom: 0;
}

.contact-side span {
  display: block;
  color: var(--text-muted);
  font-size: 0.72rem;
  margin-bottom: 0.15rem;
}

.contact-side a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}

.contact-side a:hover {
  color: var(--text-link);
  border-bottom-color: color-mix(in srgb, var(--text-link) 40%, transparent);
}

.contact-side .link-btn {
  font: inherit;
  color: var(--text);
  text-align: left;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
  border-bottom: 1px solid transparent;
}

.contact-side .link-btn:hover {
  color: var(--text-link);
  border-bottom-color: color-mix(in srgb, var(--text-link) 40%, transparent);
}

.contact-side__stack {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.25rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.35rem 0 1.75rem;
  color: var(--text-muted);
  font-size: 0.84rem;
  position: relative;
  z-index: 1;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
}

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  inset: var(--header-h) 0 0 0;
  background: var(--mobile-nav-bg);
  z-index: 40;
  padding: 1.15rem;
  flex-direction: column;
  gap: 0.2rem;
}

.mobile-nav.is-open {
  display: flex;
}

.mobile-nav a {
  color: var(--text);
  font-weight: 600;
  font-size: 1.1rem;
  padding: 0.8rem 0.35rem;
  border-bottom: 1px solid var(--line);
}

body.nav-open {
  overflow: hidden;
}

.demo-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.75rem;
}

/* ---------- 7. Responsive ---------- */
@media (max-width: 960px) {
  .nav {
    display: none;
  }

  .burger {
    display: grid;
  }

  .grid-hero,
  .resume-grid,
  .contact-box {
    grid-template-columns: 1fr;
  }

  .grid-cards {
    grid-template-columns: 1fr 1fr;
  }
}

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

  .stat-row {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 2rem;
  }

  .hub-grid {
    grid-template-columns: 1fr;
  }
}