/* ==========================================
   CRYPTOTOOLS GLOBAL
   Professional Responsive Design
   ========================================== */

:root {
  --navy: #10264a;
  --navy-dark: #091a35;
  --blue: #2563eb;
  --blue-light: #eff6ff;
  --white: #ffffff;
  --background: #f7f9fc;
  --text: #172033;
  --muted: #697586;
  --border: #e2e8f0;
  --green: #16a34a;
  --red: #dc2626;
  --shadow: 0 12px 35px rgba(16, 38, 74, 0.08);
  --radius: 18px;
}

/* RESET */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

button,
input,
select {
  font: inherit;
}

button,
a,
select {
  -webkit-tap-highlight-color: transparent;
}

button {
  cursor: pointer;
}

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

img {
  max-width: 100%;
}

.container {
  width: min(1160px, calc(100% - 40px));
  margin-inline: auto;
}

/* HEADER */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(16px);
}

.header-content {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.5px;
  white-space: nowrap;
}

.brand strong {
  color: var(--blue);
}

.brand-icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  color: var(--white);
  background: var(--navy);
  font-size: 23px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.main-nav a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  transition: color 0.2s;
}

.main-nav a:hover {
  color: var(--blue);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.language-label {
  color: var(--navy);
}

#languageSelect {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--navy);
  background: var(--white);
  font-weight: 700;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--navy);
  background: var(--white);
  font-size: 22px;
}

/* HERO */

.hero {
  overflow: hidden;
  position: relative;
  padding: 90px 0 80px;
  background:
    radial-gradient(circle at 85% 20%, rgba(37, 99, 235, 0.12), transparent 28%),
    linear-gradient(135deg, #ffffff 0%, #f2f6ff 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 65px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 2px;
}

.hero h1 {
  max-width: 650px;
  margin-bottom: 22px;
  color: var(--navy-dark);
  font-size: clamp(40px, 5vw, 65px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -2px;
}

.hero h1 span {
  color: var(--blue);
}

.hero-content > p {
  max-width: 570px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 46px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 11px;
  font-size: 14px;
  font-weight: 700;
  text-align: center;
  transition: transform 0.2s, background 0.2s;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--white);
  background: var(--blue);
}

.button-primary:hover {
  background: #1d4ed8;
}

.button-secondary {
  color: var(--navy);
  background: var(--white);
  border-color: var(--border);
}

.button-secondary:hover {
  background: var(--blue-light);
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 30px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.hero-trust > span:first-child,
.hero-trust > span:nth-child(2),
.hero-trust > span:nth-child(3) {
  color: var(--green);
}

.hero-trust > span span {
  color: var(--muted);
}

/* MARKET PREVIEW */

.hero-visual {
  min-width: 0;
}

.market-preview {
  padding: 26px;
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 25px 65px rgba(16, 38, 74, 0.12);
}

.preview-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  padding-bottom: 22px;
}

.muted {
  color: var(--muted);
  font-size: 12px;
}

.preview-top h3 {
  margin-top: 5px;
  color: var(--navy);
  font-size: 21px;
}

.live-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 9px;
  border-radius: 20px;
  color: var(--green);
  background: #f0fdf4;
  font-size: 10px;
  font-weight: 800;
}

.live-indicator span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
}

.preview-coin {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 17px 0;
  border-top: 1px solid var(--border);
}

.coin-symbol {
  display: grid;
  place-items: center;
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  border-radius: 13px;
  font-size: 24px;
  font-weight: 800;
}

.bitcoin {
  color: #b45309;
  background: #fff7ed;
}

.ethereum {
  color: #4f46e5;
  background: #eef2ff;
}

.solana {
  color: #047857;
  background: #ecfdf5;
}

.coin-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.coin-info strong {
  color: var(--navy);
  font-size: 13px;
}

.coin-info span {
  color: var(--muted);
  font-size: 11px;
}

.coin-price {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 3px;
  margin-left: auto;
  min-width: 0;
}

.coin-price strong {
  overflow-wrap: anywhere;
  color: var(--navy);
  font-size: 14px;
}

.coin-price span {
  color: var(--muted);
  font-size: 10px;
}

.preview-footer {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 10px;
}

/* AD PLACEMENTS */

.ad-section {
  padding-top: 25px;
  padding-bottom: 25px;
}

.ad-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 90px;
  padding: 16px;
  border: 1px dashed #d4dbe6;
  border-radius: 12px;
  background: #fbfcfe;
  text-align: center;
}

.ad-label {
  margin-bottom: 5px;
  color: #94a3b8;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 2px;
}

.ad-placeholder p {
  color: #94a3b8;
  font-size: 11px;
}

/* SECTIONS */

.section {
  padding: 80px 0;
}

.section-soft {
  background: var(--background);
}

.section-heading {
  max-width: 650px;
  margin: 0 auto 42px;
  text-align: center;
}

.section-heading .eyebrow {
  margin-bottom: 10px;
}

.section-heading h2,
.about-content h2 {
  margin-bottom: 13px;
  color: var(--navy);
  font-size: clamp(27px, 3vw, 38px);
  line-height: 1.2;
  letter-spacing: -1px;
}

.section-heading > p,
.about-content > p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

/* TOOL CARDS */

.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  align-items: stretch;
}

.tool-card {
  position: relative;
  min-width: 0;
  padding: 27px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 6px 20px rgba(16, 38, 74, 0.035);
  transition: transform 0.2s, box-shadow 0.2s;
}

.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.featured-card {
  border: 1px solid #bfdbfe;
  box-shadow: 0 8px 30px rgba(37, 99, 235, 0.07);
}

.featured-badge {
  position: absolute;
  top: 17px;
  right: 17px;
  padding: 5px 9px;
  border-radius: 20px;
  color: var(--blue);
  background: var(--blue-light);
  font-size: 10px;
  font-weight: 800;
}

.tool-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: 19px;
  border-radius: 14px;
  color: var(--blue);
  background: var(--blue-light);
  font-size: 24px;
  font-weight: 800;
}

.tool-card h3 {
  margin-bottom: 8px;
  color: var(--navy);
  font-size: 19px;
  line-height: 1.4;
}

.tool-description {
  min-height: 48px;
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.tool-card label {
  display: block;
  margin: 15px 0 7px;
  color: var(--navy);
  font-size: 12px;
  font-weight: 700;
}

.input-with-suffix {
  display: flex;
  align-items: stretch;
  overflow: hidden;
  min-width: 0;
  border: 1px solid #dbe2ec;
  border-radius: 10px;
  background: var(--white);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.input-with-suffix:focus-within {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.input-with-suffix input {
  width: 100%;
  min-width: 0;
  padding: 12px;
  border: 0;
  outline: none;
  color: var(--navy);
  background: transparent;
  font-size: 15px;
}

.input-with-suffix > span {
  display: flex;
  align-items: center;
  padding: 0 12px;
  border-left: 1px solid var(--border);
  color: var(--muted);
  background: #f8fafc;
  font-size: 11px;
  font-weight: 800;
}

.form-control,
.form-select {
  display: block;
  width: 100%;
  min-height: 46px;
  padding: 11px 12px;
  border: 1px solid #dbe2ec;
  border-radius: 10px;
  outline: none;
  color: var(--navy);
  background: var(--white);
  font-size: 14px;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.full-width {
  width: 100%;
  margin-top: 17px;
}

.result-box {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
  margin-top: 20px;
  padding: 15px;
  border: 1px solid #dbeafe;
  border-radius: 11px;
  background: #f8fbff;
}

.result-box > span {
  color: var(--muted);
  font-size: 11px;
}

.result-box > strong {
  overflow-wrap: anywhere;
  color: var(--navy);
  font-size: 21px;
  font-weight: 800;
}

.result-box > small {
  color: var(--muted);
  font-size: 11px;
}

.exchange-note {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.7;
}

/* PROFIT COLORS */

.positive-result {
  color: var(--green) !important;
}

.negative-result {
  color: var(--red) !important;
}

/* MARKET TABLE */

.market-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  max-width: none;
  text-align: left;
}

.market-heading h2 {
  margin-bottom: 10px;
}

.market-heading .button {
  flex-shrink: 0;
}

.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 15px;
  background: var(--white);
  box-shadow: 0 6px 20px rgba(16, 38, 74, 0.035);
}

.market-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.market-table th {
  padding: 17px 22px;
  color: var(--muted);
  background: #f8fafc;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.market-table td {
  padding: 18px 22px;
  border-top: 1px solid var(--border);
  color: var(--navy);
  font-size: 13px;
  white-space: nowrap;
}

.market-table tbody tr:hover {
  background: #fbfdff;
}

.market-asset {
  display: flex;
  align-items: center;
  gap: 12px;
}

.market-asset-icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border-radius: 12px;
  color: var(--blue);
  background: var(--blue-light);
  font-size: 16px;
  font-weight: 800;
}

.market-asset-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.market-asset-info strong {
  color: var(--navy);
  font-size: 13px;
}

.market-asset-info span {
  color: var(--muted);
  font-size: 11px;
}

.market-price {
  font-weight: 700;
}

.loading-cell {
  padding: 35px !important;
  color: var(--muted) !important;
  text-align: center;
}

.market-updated {
  margin-top: 14px;
  color: var(--muted);
  font-size: 11px;
}

.market-disclaimer {
  margin-top: 24px;
  padding: 17px 20px;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--muted);
  background: #fbfcfe;
  font-size: 12px;
  line-height: 1.8;
}

/* ABOUT */

.about-section {
  background: var(--blue-light);
}

.about-content {
  max-width: 760px;
  text-align: center;
}

.about-content .eyebrow {
  margin-bottom: 12px;
}

/* FOOTER */

.site-footer {
  padding-top: 55px;
  color: #cbd5e1;
  background: var(--navy-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 50px;
  padding-bottom: 40px;
}

.footer-logo {
  color: var(--white);
}

.footer-logo strong {
  color: #93c5fd;
}

.footer-brand > p {
  max-width: 320px;
  margin-top: 16px;
  color: #aebbd0;
  font-size: 13px;
  line-height: 1.8;
}

.footer-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.footer-links h4 {
  margin-bottom: 6px;
  color: var(--white);
  font-size: 14px;
}

.footer-links a {
  color: #aebbd0;
  font-size: 12px;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-top: 22px;
  padding-bottom: 25px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: #aebbd0;
  font-size: 10px;
}

.footer-bottom p:last-child {
  max-width: 420px;
  text-align: right;
}

/* TOAST */

.toast {
  position: fixed;
  z-index: 200;
  right: 20px;
  bottom: 20px;
  max-width: min(350px, calc(100% - 40px));
  padding: 14px 18px;
  border-radius: 12px;
  color: var(--white);
  background: var(--navy);
  box-shadow: var(--shadow);
  font-size: 13px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
}

.toast.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* TABLET */

@media (max-width: 1000px) {
  .header-content {
    gap: 14px;
  }

  .brand {
    font-size: 16px;
  }

  .main-nav {
    gap: 15px;
  }

  .main-nav a {
    font-size: 12px;
  }

  .hero-grid {
    gap: 35px;
  }

  .tools-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .tool-description {
    min-height: 0;
  }
}

/* MOBILE */

@media (max-width: 720px) {
  .container {
    width: calc(100% - 32px);
  }

  .header-content {
    position: relative;
    min-height: 68px;
  }

  .brand {
    gap: 8px;
    font-size: 15px;
  }

  .brand-icon {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    font-size: 21px;
  }

  .header-actions {
    gap: 6px;
  }

  .language-label {
    display: none;
  }

  #languageSelect {
    padding: 7px;
    font-size: 12px;
  }

  .menu-toggle {
    display: inline-grid;
    place-items: center;
    width: 38px;
    height: 38px;
    font-size: 20px;
  }

  .main-nav {
    position: absolute;
    top: calc(100% + 1px);
    right: -16px;
    left: -16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 16px 16px;
    border-bottom: 1px solid var(--border);
    background: var(--white);
    box-shadow: 0 12px 20px rgba(16, 38, 74, 0.07);
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav a {
    padding: 13px 8px;
    border-bottom: 1px solid #f1f5f9;
    font-size: 14px;
  }

  .main-nav a:last-child {
    border-bottom: 0;
  }

  .hero {
    padding: 55px 0 48px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .hero h1 {
    font-size: clamp(38px, 10vw, 52px);
    letter-spacing: -1.5px;
  }

  .hero-content > p {
    font-size: 15px;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .button {
    width: 100%;
  }

  .hero-trust {
    gap: 12px;
    font-size: 11px;
  }

  .market-preview {
    padding: 20px;
  }

  .section {
    padding: 58px 0;
  }

  .section-heading {
    margin-bottom: 30px;
  }

  .section-heading h2,
  .about-content h2 {
    font-size: 29px;
  }

  .section-heading > p,
  .about-content > p {
    font-size: 13px;
  }

  .tools-grid {
    grid-template-columns: 1fr;
    gap: 17px;
  }

  .tool-card {
    padding: 22px;
  }

  .tool-card h3 {
    font-size: 18px;
  }

  .market-heading {
    align-items: stretch;
    flex-direction: column;
    gap: 16px;
  }

  .market-heading .button {
    align-self: flex-start;
  }

  .table-wrapper {
    border-radius: 12px;
  }

  .market-table th,
  .market-table td {
    padding: 14px 12px;
    font-size: 11px;
  }

  .market-asset {
    gap: 8px;
  }

  .market-asset-icon {
    width: 32px;
    height: 32px;
    border-radius: 10px;
    font-size: 14px;
  }

  .market-asset-info strong {
    font-size: 11px;
  }

  .market-asset-info span {
    font-size: 10px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px 20px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 10px;
    font-size: 10px;
  }

  .footer-bottom p:last-child {
    text-align: left;
  }
}

/* SMALL MOBILE */

@media (max-width: 380px) {
  .container {
    width: calc(100% - 24px);
  }

  .brand {
    font-size: 13px;
  }

  .brand-icon {
    width: 30px;
    height: 30px;
  }

  .header-content {
    gap: 6px;
  }

  .header-actions {
    gap: 4px;
  }

  #languageSelect {
    padding: 6px 4px;
  }

  .menu-toggle {
    width: 34px;
    height: 34px;
  }

  .tool-card {
    padding: 18px;
  }

  .result-box > strong {
    font-size: 18px;
  }
}

/* ACCESSIBILITY */

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.35);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}