/* ============ RESET & BASE ============ */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  font-size: 100%;
}

@media (max-width: 900px) {
  html {
    font-size: 90%;
  }
}

@media (max-width: 640px) {
  html {
    font-size: 85%;
  }
}

/* ============ DESIGN TOKENS ============ */
:root {
  color-scheme: dark;

  --font-hero: 3.75rem;
  --font-h1: 2.625rem;
  --font-h2: 2rem;
  --font-h3: 1.625rem;
  --font-h4: 1.5rem;
  --font-body: 1.375rem;
  --font-small: 1.125rem;
  --font-label: 1rem;

  --fw-regular: 400;
  --fw-semibold: 600;
  --fw-bold: 700;

  --lh-heading: 1.25;
  --lh-body: 1.6;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 5rem;

  --bg: #0c148b;
  --bg-alt: #0a1069;
  --card: #0a1069;
  --text: #ffffff;
  --muted: #c3ceff;
  --accent: #66d9ff;
  --accent-hover: #8ae6ff;
  --border: #3d4fd8;
  --yellow: #ffd83d;

  --radius-sm: 0.375rem;
  --radius: 0.75rem;
  --radius-lg: 1.25rem;
  --radius-full: 9999px;
  --radius-btn: 8px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.6);

  --max-width: 1320px;
  --narrow-width: 860px;
  --header-height: 76px;
  --header-btn-height: 43px;
}

/* ============ BASE ============ */
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif,
    "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  background: var(--bg);
  color: var(--text);
  line-height: var(--lh-body);
  font-size: var(--font-body);
  padding-top: var(--header-height);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.container.narrow {
  max-width: var(--narrow-width);
}

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

h1,
h2,
h3,
h4 {
  line-height: var(--lh-heading);
  font-weight: var(--fw-bold);
}

section[id],
.section[id] {
  scroll-margin-top: var(--header-height);
}

/* ============ HEADER / NAV ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(12, 20, 139, 0.9);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo {
  font-weight: var(--fw-bold);
  font-size: 26px;
  letter-spacing: 0.5px;
  color: var(--yellow);
}

.header-clock {
  font-size: 24px;
  color: var(--muted);
  font-family: "SF Mono", "Consolas", "Monaco", monospace;
  letter-spacing: 0.5px;
  margin-left: var(--space-5);
  margin-right: var(--space-5);
  padding: var(--space-1) var(--space-2) var(--space-1) var(--space-4);
  border-left: 1px solid var(--border);
  display: inline-block;
}

.site-nav {
  display: flex;
  gap: var(--space-5);
  align-items: center;
  margin-left: auto;
}

.site-nav a {
  color: var(--muted);
  font-size: 24px;
  transition: color 0.2s;
}

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

.nav-cta {
  color: var(--text) !important;
  border: 1px solid var(--border);
  padding: 6px 16px;
  line-height: 1.2;
  border-radius: var(--radius-btn);
  background: rgba(255, 255, 255, 0.06);
}

.nav-cta:hover {
  background: rgba(255, 255, 255, 0.15);
}

.nav-toggle,
.nav-toggle-label {
  display: none;
}

/* ============ NAV DROPDOWN ============ */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 24px;
  font-family: inherit;
  cursor: pointer;
  padding: 0;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s;
  line-height: inherit;
}

.nav-dropdown-toggle:hover {
  color: var(--text);
}

.nav-caret {
  font-size: 14px;
  transition: transform 0.2s;
  display: inline-block;
}

.nav-dropdown:hover .nav-caret,
.nav-dropdown:focus-within .nav-caret {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  min-width: 220px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-2) 0;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
  z-index: 200;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(4px);
}

.nav-dropdown-menu a {
  display: block;
  padding: 8px 20px;
  color: var(--text);
  font-size: 20px;
  transition: background 0.2s, color 0.2s;
  text-align: left;
  white-space: nowrap;
}

.nav-dropdown-menu a:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--accent);
}

/* ============ LANGUAGE SWITCH ============ */
.lang-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border);
  cursor: pointer;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-btn);
  margin-left: var(--space-4);
  transition: background 0.2s, border-color 0.2s;
  line-height: 1;
}

.lang-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--accent);
}

.lang-flag {
  font-size: 22px;
  line-height: 1;
  display: block;
}

/* ============ HERO ============ */
.hero {
  padding: var(--space-9) 0 var(--space-8);
  text-align: center;
  background: radial-gradient(ellipse at top, #1622ae 0%, var(--bg) 65%);
}

.hero-name {
  font-size: var(--font-hero);
  margin-bottom: var(--space-3);
  color: var(--yellow);
}

.hero-roles {
  font-size: var(--font-h4);
  color: var(--text);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.3px;
  margin-bottom: var(--space-4);
}

.hero-tagline {
  font-size: var(--font-h3);
  margin-bottom: var(--space-5);
  color: var(--text);
}

.hero-sub {
  color: var(--muted);
  font-size: var(--font-h4);
  margin-bottom: var(--space-6);
}

.hero-buttons {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-5);
}

.hero-trust {
  color: var(--muted);
  font-size: var(--font-h4);
}

.hero-trust .check {
  color: var(--yellow);
  font-weight: var(--fw-bold);
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-block;
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-btn);
  font-weight: var(--fw-semibold);
  font-size: var(--font-body);
  font-family: inherit;
  transition: all 0.2s;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background-color: var(--accent) !important;
  color: #0a1069 !important;
  border-color: var(--accent) !important;
}

.btn-primary:hover {
  background-color: var(--accent-hover) !important;
  border-color: var(--accent-hover) !important;
}

.btn-secondary,
.btn-outline {
  background-color: transparent !important;
  color: var(--text) !important;
  border-color: var(--text) !important;
}

.btn-secondary:hover,
.btn-outline:hover {
  background-color: rgba(255, 255, 255, 0.1) !important;
  border-color: var(--text) !important;
}

/* ============ SECTIONS ============ */
.section {
  padding: var(--space-9) 0;
}

.section-title {
  font-size: var(--font-h1);
  text-align: center;
  margin-bottom: var(--space-3);
  color: var(--text);
}

.section-sub {
  text-align: center;
  color: var(--muted);
  margin-bottom: var(--space-7);
  font-size: var(--font-h4);
}

.section-buttons {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--space-6);
}

.small-note {
  text-align: center;
  color: var(--muted);
  font-size: var(--font-h4);
  margin-top: var(--space-5);
}

/* ============ TRUST STRIP ============ */
.trust-strip {
  padding: var(--space-6) 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
  text-align: center;
}

.trust-label {
  font-size: var(--font-body);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--muted);
  margin-bottom: var(--space-3);
}

.trust-clients {
  font-size: var(--font-body);
  color: var(--text);
  font-weight: 500;
  line-height: 1.7;
}

/* ============ CARDS & GRIDS ============ */
.grid {
  display: grid;
  gap: var(--space-5);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-6) var(--space-5);
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(102, 217, 255, 0.25);
}

.card h3 {
  font-size: var(--font-h3);
  margin-bottom: var(--space-3);
  color: var(--text);
}

.card p {
  color: var(--muted);
  font-size: var(--font-body);
}

.pillar-card {
  text-align: center;
}

.pillar-card h3 {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.pillar-icon {
  font-size: 2rem;
  line-height: 1;
}

/* ============ ACHIEVEMENTS ============ */
.achievement-card {
  position: relative;
}

.achievement-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.achievement-header h3 {
  margin: 0;
  flex: 1;
  font-size: var(--font-h3);
  color: var(--text);
  line-height: var(--lh-heading);
}

.achievement-header .badge {
  margin: 0;
  flex-shrink: 0;
}

.badge {
  position: relative;
  display: inline-block;
  font-size: var(--font-small);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
  padding: 4px var(--space-3);
  z-index: 1;
}

.badge strong {
  font-weight: var(--fw-bold);
}

.badge::before {
  content: '🏅';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 3rem;
  line-height: 1;
  z-index: -1;
}

.badge-worldfirst::before {
  content: '🥇';
}

.badge-market {
  color: #7ff0b3;
}

.badge-proto {
  color: #ffd27f;
}

.badge-worldfirst {
  color: #ffb3d1;
}

/* ============ SKILLS GRID ============ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.skills-grid .skill-card h3 {
  font-size: var(--font-h3);
  margin-bottom: var(--space-4);
  color: var(--text);
}

.skills-grid .skill-card p {
  font-size: var(--font-body);
  line-height: 1.7;
  margin-bottom: var(--space-3);
  color: var(--muted);
}

.skills-grid .skill-card p:last-child {
  margin-bottom: 0;
}

.skills-grid .skill-card p strong {
  color: var(--text);
  font-weight: var(--fw-semibold);
}

.skills-grid .skill-card .coming-soon {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
  font-size: var(--font-body);
  font-style: italic;
  color: var(--yellow);
}

/* ============ POST / MILESTONE LIST ============ */
.post-list {
  list-style: none;
}

.post-item {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--border);
  transition: padding-left 0.2s;
}

.post-item:hover {
  padding-left: var(--space-2);
}

.post-title-link {
  color: var(--text);
  flex: 1;
  min-width: 0;
}

.post-title-link:hover .post-title {
  color: var(--accent);
}

.post-title {
  font-weight: var(--fw-semibold);
  font-size: var(--font-h4);
  line-height: 1.3;
}

.post-meta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
  font-size: var(--font-h4);
  white-space: nowrap;
}

.post-author {
  color: var(--accent);
  transition: color 0.2s;
}

.post-author:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

.post-sep {
  color: var(--muted);
  opacity: 0.6;
}

.post-date {
  color: var(--muted);
}

.post-item-empty {
  color: var(--muted);
  font-style: italic;
}

/* ============ FINAL CTA ============ */
.final-cta {
  text-align: center;
  background: radial-gradient(ellipse at bottom, #1622ae 0%, var(--bg) 70%);
}

.final-cta h2 {
  font-size: var(--font-h1);
  margin-bottom: var(--space-4);
  color: var(--text);
}

.final-cta p {
  color: var(--muted);
  margin-bottom: var(--space-6);
  font-size: var(--font-h4);
}

/* ============ FOOTER ============ */
.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-8) 0 var(--space-5);
  background: var(--bg-alt);
}

.footer-trust {
  text-align: center;
  padding-bottom: var(--space-6);
  margin-bottom: var(--space-6);
  border-bottom: 1px solid var(--border);
}

.footer-trust-label {
  font-size: var(--font-body);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--muted);
  margin-bottom: var(--space-4);
}

.footer-trust-clients {
  font-size: var(--font-body);
  color: var(--text);
  font-weight: 500;
  line-height: 1.7;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-6);
  position: relative;
}

.footer-col {
  position: relative;
  text-align: center;
}

.footer-col h4 {
  font-size: var(--font-h4);
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent);
  margin: 0;
  padding: var(--space-3) 0;
  cursor: pointer;
  transition: color 0.2s;
}

.footer-col h4:hover {
  color: var(--yellow);
}

.footer-col .submenu {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 260px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-4) var(--space-5);
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
  z-index: 200;
}

.footer-col:hover .submenu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.footer-col .submenu a {
  display: block;
  color: var(--text);
  font-size: var(--font-body);
  padding: var(--space-2) 0;
  opacity: 0.85;
  transition: opacity 0.2s, color 0.2s;
}

.footer-col .submenu a:hover {
  opacity: 1;
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: var(--space-5);
  color: var(--muted);
  font-size: var(--font-body);
  text-align: center;
}

.footer-copyright {
  margin: 0;
  font-size: var(--font-body);
}

.footer-name {
  color: var(--yellow);
  font-weight: var(--fw-semibold);
}

/* ============ ABOUT ============ */
.about p+p {
  margin-top: var(--space-5);
}

/* ============ MODALS ============ */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: var(--space-5);
  overflow-y: auto;
}

.modal-overlay.open {
  display: flex;
}

.modal-box {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-6);
  max-width: 640px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal-box h2 {
  font-size: var(--font-h3);
  margin-bottom: var(--space-5);
  color: var(--text);
}

.modal-close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-4);
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
}

.modal-close:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

.modal-countdown {
  text-align: center;
  font-size: var(--font-body);
  color: var(--muted);
  margin-bottom: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.modal-countdown #countdown-display,
.modal-countdown #book-countdown-display {
  color: var(--yellow);
  font-weight: var(--fw-bold);
  font-family: "SF Mono", "Consolas", "Monaco", monospace;
  letter-spacing: 1px;
}

.modal-countdown #countdown-display.expired,
.modal-countdown #book-countdown-display.expired {
  color: #ff4d6d;
  animation: pulse 1s infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.4;
  }
}

/* ============ FORMS ============ */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.form-group {
  margin-bottom: var(--space-4);
}

.form-group label {
  display: block;
  font-size: var(--font-body);
  color: var(--muted);
  margin-bottom: var(--space-2);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-body);
  font-family: inherit;
  background: #ffffff;
  color: #0a1069;
  border: 1px solid #d0d8ff;
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.2s, border-width 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: #ff4d6d;
  border-width: 3px;
  padding: calc(var(--space-3) - 2px) calc(var(--space-4) - 2px);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group select {
  cursor: pointer;
}

.captcha-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.captcha-label {
  font-size: var(--font-body);
  color: var(--muted);
  margin: 0;
  white-space: nowrap;
}

.captcha-question {
  font-size: var(--font-body);
  font-weight: var(--fw-semibold);
  color: var(--yellow);
  white-space: nowrap;
}

.captcha-input {
  max-width: 130px;
  font-size: var(--font-body);
  text-align: center;
  padding: var(--space-2) var(--space-3);
}

.form-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-5);
  flex-wrap: wrap;
  justify-content: center;
}

.form-note {
  margin-top: var(--space-3);
  font-size: var(--font-body);
  text-align: center;
}

.form-note.error {
  color: #ff7b8a;
}

.form-note.success {
  color: #7ff0b3;
}

/* ============ BOOK CALL SPECIFIC ============ */
#book-modal .modal-box {
  max-width: 720px;
}

.booking-hint {
  font-size: var(--font-body);
  color: var(--muted);
  margin-top: calc(var(--space-2) * -1);
  margin-bottom: var(--space-4);
  text-align: center;
}

.urgent-warning {
  background: rgba(255, 77, 109, 0.12);
  border: 1px solid #ff4d6d;
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-body);
  color: #ff7b8a;
  text-align: center;
  margin-bottom: var(--space-4);
  display: none;
}

.urgent-warning.visible {
  display: block;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .header-clock {
    display: none;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2) var(--space-4);
    margin-bottom: var(--space-5);
  }

  .footer-col {
    text-align: center;
    position: relative;
  }

  .footer-col h4 {
    font-size: var(--font-body);
    letter-spacing: 0.5px;
    padding: var(--space-3) var(--space-1);
  }

  .footer-col .submenu {
    position: absolute;
    bottom: 100%;
    top: auto;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    min-width: 240px;
    padding: var(--space-3) var(--space-4);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }

  .footer-col.open .submenu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
  }

  .footer-col:hover .submenu {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }

  .footer-col.open:hover .submenu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .footer-col .submenu a {
    font-size: var(--font-body);
    padding: var(--space-1) 0;
  }

  /* ===== NAV DROPDOWN (tablet) ===== */
  .nav-dropdown {
    width: 100%;
  }

  .nav-dropdown-toggle {
    display: none;
  }

  .nav-dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
    min-width: 0;
  }

  .nav-dropdown-menu a {
    padding: var(--space-3) var(--space-5);
    border-bottom: 1px solid var(--border);
    width: 100%;
    text-align: right;
    font-size: var(--font-body);
    color: var(--muted);
    white-space: normal;
  }
}

@media (max-width: 900px) and (min-width: 641px) {
  .nav-wrap {
    display: flex;
    align-items: center;
  }

  .nav-toggle-label {
    display: block;
    cursor: pointer;
    padding: var(--space-2);
    order: 2;
    margin-left: var(--space-3);
  }

  .nav-toggle-label span,
  .nav-toggle-label span::before,
  .nav-toggle-label span::after {
    display: block;
    background-color: var(--text) !important;
    height: 2px;
    width: 30px;
    position: relative;
    transition: 0.3s;
  }

  .nav-toggle-label span::before,
  .nav-toggle-label span::after {
    content: "";
    position: absolute;
  }

  .nav-toggle-label span::before {
    top: -10px;
  }

  .nav-toggle-label span::after {
    top: 10px;
  }

  .lang-btn {
    order: 1;
    margin-left: auto;
    margin-right: 0;
  }

  .site-nav {
    order: 3;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    right: 0;
    left: auto;
    width: auto;
    min-width: 240px;
    background: var(--bg-alt);
    border-left: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    border-radius: 0 0 0 var(--radius);
    flex-direction: column;
    align-items: flex-end;
    gap: 0;
    padding: 0;
    margin-left: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s;
  }

  .site-nav a {
    padding: var(--space-3) var(--space-5);
    border-bottom: 1px solid var(--border);
    width: 100%;
    text-align: right;
    font-size: var(--font-body);
  }

  .nav-toggle:checked~.site-nav {
    max-height: calc(100vh - var(--header-height) - 4rem);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
}

@media (max-width: 640px) {
  :root {
    --header-height: 64px;
  }

  .hero {
    padding: var(--space-8) 0 var(--space-7);
  }

  .section {
    padding: var(--space-8) 0;
  }

  .about .container.narrow {
    padding-left: var(--space-6);
  }

  .grid-4,
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }

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

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .modal-box {
    padding: var(--space-5);
  }

  #book-modal .modal-box {
    max-width: 100%;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: var(--space-2);
  }

  .nav-toggle {
    display: none;
  }

  .nav-wrap {
    display: flex;
    align-items: center;
  }

  .logo {
    order: 1;
  }

  .lang-btn {
    order: 2;
    margin-left: auto;
    margin-right: var(--space-2);
  }

  .nav-toggle-label {
    order: 3;
  }

  .site-nav {
    order: 4;
  }

  .nav-toggle-label {
    display: block;
    cursor: pointer;
    padding: var(--space-2);
  }

  .nav-toggle-label span,
  .nav-toggle-label span::before,
  .nav-toggle-label span::after {
    display: block;
    background-color: var(--text) !important;
    height: 2px;
    width: 30px;
    position: relative;
    transition: 0.3s;
  }

  .nav-toggle-label span::before,
  .nav-toggle-label span::after {
    content: "";
    position: absolute;
  }

  .nav-toggle-label span::before {
    top: -10px;
  }

  .nav-toggle-label span::after {
    top: 10px;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    right: 0;
    left: auto;
    width: auto;
    min-width: 240px;
    background: var(--bg-alt);
    border-left: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    border-radius: 0 0 0 var(--radius);
    flex-direction: column;
    align-items: flex-end;
    gap: 0;
    padding: 0;
    margin-left: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s;
  }

  .site-nav a {
    padding: var(--space-3) var(--space-5);
    border-bottom: 1px solid var(--border);
    width: 100%;
    text-align: right;
    font-size: var(--font-body);
  }

  .nav-toggle:checked~.site-nav {
    max-height: calc(100vh - var(--header-height) - 4rem);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
}