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

:root {
  --main-green: #2ECC71;
  --main-green-dim: #1e994d;
  --accent-orange: #E67E22;
  --accent-orange-dim: #b8631a;
  --accent-blue: #2980B9;
  --accent-blue-dim: #1f5f87;
  --bg-dark: #1A1A1A;
  --bg-card: #2C2C2C;
  --bg-card-hover: #363636;
  --text-primary: #FFFFFF;
  --text-secondary: #B0B0B0;
  --text-muted: #707070;
  --border-subtle: #404040;
  --border-light: #555555;
  --success-green: #27AE60;
  --warning-red: #E74C3C;
  --yellow-card: #F1C40F;
  --red-card: #E74C3C;
  --font-heading: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-data: 'Courier New', Consolas, 'Liberation Mono', monospace;
  --nav-height: 64px;
  --max-width: 1280px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
  --transition-fast: 0.2s ease;
  --transition-med: 0.35s ease;
  --transition-slow: 0.5s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

:focus-visible {
  outline: 2px solid var(--main-green);
  outline-offset: 2px;
  border-radius: 4px;
}

::selection {
  background: var(--main-green);
  color: var(--bg-dark);
}

a {
  color: var(--accent-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--main-green);
}

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

input {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  color: inherit;
}

ul {
  list-style: none;
}

/* ===== Skip Link ===== */
.skip-link {
  position: fixed;
  top: -100%;
  left: 1rem;
  z-index: 10000;
  background: var(--main-green);
  color: var(--bg-dark);
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.9rem;
  transition: top var(--transition-med);
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
  color: var(--bg-dark);
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9000;
  background: transparent;
  transition: background var(--transition-med), box-shadow var(--transition-med);
  height: var(--nav-height);
}

.nav--solid {
  background: rgba(26, 26, 26, 0.97);
  box-shadow: 0 2px 20px rgba(0,0,0,0.5);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}

.nav__logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-style: italic;
  font-size: 1.35rem;
  color: var(--main-green);
  letter-spacing: -0.02em;
  text-decoration: none;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.nav__logo:hover {
  color: var(--accent-orange);
}

.nav__badge {
  font-family: var(--font-data);
  font-size: 0.7rem;
  color: var(--accent-orange);
  background: rgba(230, 126, 34, 0.15);
  padding: 0.15rem 0.5rem;
  border-radius: 20px;
  border: 1px solid rgba(230, 126, 34, 0.3);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex: 1;
  justify-content: center;
}

.nav__link {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--main-green);
  transition: width var(--transition-med);
  border-radius: 2px;
}

.nav__link:hover {
  color: var(--text-primary);
  background: rgba(46, 204, 113, 0.08);
}

.nav__link:hover::after {
  width: 60%;
}

.nav__link[aria-current="page"] {
  color: var(--main-green);
  font-weight: 700;
}

.nav__link[aria-current="page"]::after {
  width: 60%;
  background: var(--main-green);
}

.nav__tools {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}

.nav__search {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 0.3rem 1rem;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.nav__search:focus-within {
  border-color: var(--main-green);
  background: rgba(46, 204, 113, 0.06);
}

.nav__search-icon {
  flex-shrink: 0;
  color: var(--text-muted);
  width: 14px;
  height: 14px;
}

.nav__search-input {
  font-size: 0.82rem;
  color: var(--text-primary);
  background: transparent;
  border: none;
  outline: none;
  width: 120px;
  transition: width var(--transition-med);
}

.nav__search-input::placeholder {
  color: var(--text-muted);
}

.nav__search-input:focus {
  width: 180px;
}

.nav__filter {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  position: relative;
  padding: 0.25rem 0;
}

.nav__filter-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  white-space: nowrap;
  font-weight: 500;
}

.nav__filter-checkbox {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.nav__filter-switch {
  width: 36px;
  height: 20px;
  background: var(--border-subtle);
  border-radius: 20px;
  position: relative;
  transition: background var(--transition-fast);
  flex-shrink: 0;
}

.nav__filter-switch::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 14px;
  height: 14px;
  background: var(--text-secondary);
  border-radius: 50%;
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.nav__filter-checkbox:checked + .nav__filter-switch {
  background: var(--main-green);
}

.nav__filter-checkbox:checked + .nav__filter-switch::after {
  transform: translateX(16px);
  background: var(--text-primary);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  flex-shrink: 0;
}

.nav__toggle:hover {
  background: rgba(255, 255, 255, 0.06);
}

.nav__toggle-line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-med), opacity var(--transition-med);
}

[data-open] .nav__toggle-line:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}

[data-open] .nav__toggle-line:nth-child(2) {
  opacity: 0;
}

[data-open] .nav__toggle-line:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -4px);
}

/* ===== Progress Bar ===== */
.nav__progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--main-green), var(--accent-orange));
  width: 0%;
  transition: width 0.1s linear;
  z-index: 1;
}

/* ===== Footer ===== */
.footer {
  background: var(--bg-dark);
  border-top: 1px solid var(--border-subtle);
  position: relative;
  margin-top: 6rem;
}

.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.5rem 1.5rem;
}

.footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer__logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-style: italic;
  font-size: 1.6rem;
  color: var(--main-green);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.footer__logo:hover {
  color: var(--accent-orange);
}

.footer__trust {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 36em;
}

.footer__hub-title,
.footer__contact-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-style: italic;
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 0.8rem;
  position: relative;
  display: inline-block;
}

.footer__hub-title::after,
.footer__contact-title::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--main-green);
  border-radius: 2px;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer__link {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
  padding: 0.15rem 0;
}

.footer__link:hover {
  color: var(--main-green);
  padding-left: 4px;
}

.footer__contact {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.footer__contact-item {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__contact-item:hover {
  color: var(--main-green);
}

.footer__contact-item:first-of-type {
  font-weight: 600;
  color: var(--accent-blue);
}

.footer__contact-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  line-height: 1.5;
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 0.8rem;
}

.footer__icp {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-data);
}

.footer__copyright {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ===== Floating Nav ===== */
.footer__floating {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 8000;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.5rem;
}

.footer__float-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--main-green);
  color: var(--bg-dark);
  padding: 0.7rem 1.2rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.85rem;
  box-shadow: var(--shadow-md);
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  border: none;
}

.footer__float-btn:hover {
  background: var(--accent-orange);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.footer__float-icon {
  flex-shrink: 0;
}

.footer__float-panel {
  display: none;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem 1.2rem;
  box-shadow: var(--shadow-lg);
  width: 260px;
  max-height: 320px;
  overflow-y: auto;
}

.footer__float-panel[data-open] {
  display: block;
  animation: floatPanelIn 0.3s ease;
}

@keyframes floatPanelIn {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.footer__float-title {
  display: block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-style: italic;
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.footer__float-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
}

.footer__float-item {
  font-size: 0.78rem;
  padding: 0.4rem 0.6rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-align: left;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  font-weight: 500;
}

.footer__float-item:hover {
  background: rgba(46, 204, 113, 0.12);
  color: var(--main-green);
  border-color: rgba(46, 204, 113, 0.3);
}

.footer__float-item[data-active] {
  background: rgba(46, 204, 113, 0.18);
  color: var(--main-green);
  border-color: var(--main-green);
}

/* ===== Common Components ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  width: 100%;
}

.section {
  padding: 4rem 0;
}

.card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-subtle);
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  border: none;
  text-decoration: none;
  line-height: 1.2;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background: var(--main-green);
  color: var(--bg-dark);
}

.btn--primary:hover {
  background: var(--main-green-dim);
  box-shadow: 0 4px 16px rgba(46, 204, 113, 0.3);
  color: var(--bg-dark);
}

.btn--accent {
  background: var(--accent-orange);
  color: var(--text-primary);
}

.btn--accent:hover {
  background: var(--accent-orange-dim);
  box-shadow: 0 4px 16px rgba(230, 126, 34, 0.3);
  color: var(--text-primary);
}

.tag {
  display: inline-flex;
  align-items: center;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  background: rgba(46, 204, 113, 0.12);
  color: var(--main-green);
  border: 1px solid rgba(46, 204, 113, 0.2);
  letter-spacing: 0.02em;
}

.tag--orange {
  background: rgba(230, 126, 34, 0.12);
  color: var(--accent-orange);
  border-color: rgba(230, 126, 34, 0.2);
}

.tag--blue {
  background: rgba(41, 128, 185, 0.12);
  color: var(--accent-blue);
  border-color: rgba(41, 128, 185, 0.2);
}

.tag--red {
  background: rgba(231, 76, 60, 0.12);
  color: var(--warning-red);
  border-color: rgba(231, 76, 60, 0.2);
}

/* ===== Grid System ===== */
.grid {
  display: grid;
  gap: 1.5rem;
}

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

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

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

/* ===== Typography Helpers ===== */
.heading {
  font-family: var(--font-heading);
  font-weight: 800;
  font-style: italic;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.heading--1 {
  font-size: 2.5rem;
}

.heading--2 {
  font-size: 2rem;
}

.heading--3 {
  font-size: 1.5rem;
}

.text--body {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.text--small {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.text--data {
  font-family: var(--font-data);
  font-weight: 500;
  letter-spacing: -0.02em;
}

/* ===== Decorative Elements ===== */
.section__divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--main-green), var(--accent-orange));
  border-radius: 3px;
  margin: 1rem 0;
}

.section__divider--center {
  margin-left: auto;
  margin-right: auto;
}

.overline {
  display: block;
  font-family: var(--font-data);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-orange);
  font-weight: 600;
  margin-bottom: 0.3rem;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .nav__tools {
    gap: 0.6rem;
  }
  .nav__search-input {
    width: 90px;
  }
  .nav__search-input:focus {
    width: 130px;
  }
  .nav__filter-label {
    font-size: 0.72rem;
  }
  .footer__top {
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 820px) {
  .nav__tools {
    display: none;
  }
  .nav__toggle {
    display: flex;
  }
  .nav__inner {
    padding: 0 1rem;
  }
  .nav__list {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 26, 26, 0.99);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    padding: 2rem 1.5rem;
    gap: 0.25rem;
    transform: translateX(100%);
    transition: transform var(--transition-med);
    overflow-y: auto;
    z-index: 999;
  }
  [data-open] .nav__list {
    transform: translateX(0);
  }
  .nav__link {
    font-size: 1.15rem;
    padding: 0.8rem 1rem;
    border-radius: var(--radius-sm);
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  }
  .nav__link::after {
    display: none;
  }
  .nav__link[aria-current="page"] {
    background: rgba(46, 204, 113, 0.12);
    color: var(--main-green);
  }
  .nav__link:hover {
    background: rgba(255, 255, 255, 0.04);
  }
  .nav__brand {
    flex: 1;
  }
  .nav__badge {
    font-size: 0.6rem;
    padding: 0.1rem 0.4rem;
  }
  .footer__top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer__brand {
    text-align: center;
    align-items: center;
  }
  .footer__trust {
    text-align: center;
    max-width: 100%;
  }
  .footer__hub,
  .footer__contact {
    text-align: center;
    align-items: center;
  }
  .footer__hub-title::after,
  .footer__contact-title::after {
    left: 50%;
    transform: translateX(-50%);
  }
  .footer__links {
    align-items: center;
  }
  .footer__contact {
    align-items: center;
  }
  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
  .footer__floating {
    bottom: 1.2rem;
    right: 1.2rem;
  }
  .footer__float-btn span {
    font-size: 0.78rem;
  }
  .footer__float-panel {
    width: 220px;
    max-height: 260px;
  }
  .footer__float-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.3rem;
  }
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
  .grid--sm-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .heading--1 {
    font-size: 1.8rem;
  }
  .heading--2 {
    font-size: 1.5rem;
  }
  .heading--3 {
    font-size: 1.25rem;
  }
}

@media (max-width: 480px) {
  :root {
    --nav-height: 56px;
  }
  .nav__inner {
    padding: 0 0.75rem;
  }
  .nav__logo {
    font-size: 1.1rem;
  }
  .nav__badge {
    display: none;
  }
  .nav__list {
    padding: 1.5rem 1rem;
  }
  .nav__link {
    font-size: 1rem;
    padding: 0.7rem 0.8rem;
  }
  .footer__inner {
    padding: 2rem 1rem 1rem;
  }
  .footer__float-btn {
    padding: 0.6rem 1rem;
    font-size: 0.78rem;
  }
  .footer__float-panel {
    width: 200px;
    max-height: 220px;
    padding: 0.8rem 1rem;
  }
  .footer__float-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer__float-item {
    font-size: 0.72rem;
    padding: 0.3rem 0.5rem;
  }
  .container {
    padding: 0 1rem;
  }
  .section {
    padding: 2.5rem 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .nav__list {
    transition: none !important;
  }
  .footer__float-panel[data-open] {
    animation: none !important;
  }
  .card:hover {
    transform: none !important;
  }
  .btn:hover {
    transform: none !important;
  }
}