:root {
  --color-bg: #050814;
  --color-bg-soft: #0b1020;
  --color-card: rgba(255, 255, 255, 0.06);
  --color-card-border: rgba(255, 255, 255, 0.12);

  --color-text: #f4f7fb;
  --color-muted: #aab6c8;

  --color-blue: #168bff;
  --color-green: #6cff3a;
  --color-purple: #b84cff;
  --color-pink: #ff4fd8;

  --radius-lg: 24px;
  --radius-md: 16px;

  --shadow-glow: 0 0 40px rgba(22, 139, 255, 0.18);
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    Inter,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  background:
    radial-gradient(circle at top left, rgba(22, 139, 255, 0.22), transparent 32rem),
    radial-gradient(circle at top right, rgba(184, 76, 255, 0.18), transparent 30rem),
    radial-gradient(circle at bottom, rgba(108, 255, 58, 0.09), transparent 28rem),
    var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--color-card-border);
  background: rgba(5, 8, 20, 0.82);
  backdrop-filter: blur(18px);
}

.navbar {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.logo-mark {
  color: var(--color-green);
  text-shadow: 0 0 18px rgba(108, 255, 58, 0.65);
}

.logo-text {
  font-size: 1.35rem;
  background: linear-gradient(90deg, var(--color-blue), var(--color-green), var(--color-purple));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--color-muted);
  font-size: 0.95rem;
  font-weight: 600;
}

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

.nav-toggle {
  display: none;
  border: 1px solid var(--color-card-border);
  background: var(--color-card);
  color: var(--color-text);
  border-radius: 10px;
  padding: 8px 10px;
  font-size: 1.2rem;
}

.hero-section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 90px 22px 70px;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  align-items: center;
  gap: 44px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--color-green);
  font-size: 0.83rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-content h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(2.5rem, 7vw, 5.7rem);
  line-height: 0.95;
  letter-spacing: -0.07em;
}

.hero-subtitle {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--color-muted);
  font-size: 1.15rem;
}

.hero-actions {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
}

.button-primary {
  background: linear-gradient(90deg, var(--color-blue), var(--color-green));
  color: #02040a;
  box-shadow: 0 0 28px rgba(22, 139, 255, 0.28);
}

.button-secondary {
  border: 1px solid var(--color-card-border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text);
}

.hero-card {
  min-height: 360px;
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, rgba(22, 139, 255, 0.15), rgba(184, 76, 255, 0.08)),
    rgba(255, 255, 255, 0.04);
  box-shadow: var(--shadow-glow);
  display: grid;
  place-items: center;
  padding: 26px;
}

.tool-preview-card {
  width: 100%;
  padding: 28px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(108, 255, 58, 0.25);
  background: rgba(5, 8, 20, 0.82);
}

.tool-label {
  margin: 0 0 8px;
  color: var(--color-purple);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
}

.tool-preview-card h2 {
  margin: 0;
  font-size: 1.9rem;
  line-height: 1.1;
}

.tool-preview-card p {
  color: var(--color-muted);
}

.text-link {
  color: var(--color-green);
  font-weight: 800;
}

.tool-category-section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 40px 22px 90px;
}

.section-heading {
  max-width: 720px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1;
  letter-spacing: -0.05em;
}

.section-heading p {
  color: var(--color-muted);
}

.category-grid {
  margin-top: 30px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.category-card {
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-card-border);
  background: var(--color-card);
}

.category-card h3 {
  margin: 0 0 10px;
}

.category-card p {
  margin: 0;
  color: var(--color-muted);
}

.site-footer {
  border-top: 1px solid var(--color-card-border);
  padding: 28px 22px;
  text-align: center;
  color: var(--color-muted);
}

.site-footer a {
  color: var(--color-green);
  font-weight: 800;
}

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    top: 74px;
    left: 22px;
    right: 22px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 18px;
    border: 1px solid var(--color-card-border);
    border-radius: 18px;
    background: rgba(5, 8, 20, 0.96);
  }

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

  .hero-section {
    grid-template-columns: 1fr;
    padding-top: 60px;
  }

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

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

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

  .button {
    width: 100%;
  }
}

/* Tool page layout */

.tool-page-hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 70px 22px 34px;
}

.tool-page-hero h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(2.4rem, 6vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

.tool-layout {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 22px 70px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 24px;
  align-items: start;
}

.tool-panel,
.sidebar-card,
.info-card {
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.055);
  box-shadow: var(--shadow-glow);
}

.tool-panel {
  padding: 24px;
}

.tool-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.tool-tab {
  border: 1px solid var(--color-card-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.055);
  color: var(--color-muted);
  padding: 10px 14px;
  font-weight: 800;
  cursor: pointer;
}

.tool-tab:hover,
.tool-tab.is-active {
  color: #02040a;
  border-color: transparent;
  background: linear-gradient(90deg, var(--color-blue), var(--color-green));
}

.tool-tab-panel {
  display: none;
}

.tool-tab-panel.is-active {
  display: block;
}

.tool-tab-panel h2 {
  margin-top: 0;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.tool-help {
  color: var(--color-muted);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.form-grid label {
  color: var(--color-text);
  font-weight: 800;
}

.form-grid input {
  width: 100%;
  margin-top: 8px;
  padding: 13px 14px;
  border: 1px solid rgba(22, 139, 255, 0.42);
  border-radius: 12px;
  background: rgba(5, 8, 20, 0.88);
  color: var(--color-text);
  font: inherit;
}

.form-grid input:focus {
  outline: none;
  border-color: var(--color-green);
  box-shadow: 0 0 0 3px rgba(108, 255, 58, 0.15);
}

.tool-button {
  margin-top: 22px;
}

.result-box {
  margin-top: 22px;
  padding: 20px;
  border: 1px solid rgba(108, 255, 58, 0.24);
  border-radius: var(--radius-md);
  background: rgba(5, 8, 20, 0.76);
  color: var(--color-muted);
}

.result-value {
  display: block;
  margin-top: 10px;
  color: var(--color-green);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.05em;
}

.result-error {
  color: #ff8a8a;
  font-weight: 800;
}

.tool-sidebar {
  display: grid;
  gap: 18px;
}

.sidebar-card {
  padding: 22px;
}

.sidebar-card h2 {
  margin-top: 0;
  font-size: 1.25rem;
}

.sidebar-card p,
.sidebar-card li {
  color: var(--color-muted);
}

.sidebar-card ul {
  padding-left: 20px;
}

.content-section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px 22px 90px;
}

.content-section h2 {
  margin-top: 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1;
  letter-spacing: -0.05em;
}

.content-section p {
  max-width: 850px;
  color: var(--color-muted);
}

.info-grid {
  margin-top: 26px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.info-card {
  padding: 22px;
}

.info-card h3 {
  margin-top: 0;
}

.info-card p {
  color: var(--color-muted);
}

.info-card code {
  display: block;
  margin-top: 14px;
  padding: 12px;
  border-radius: 12px;
  background: rgba(5, 8, 20, 0.86);
  color: var(--color-green);
  overflow-x: auto;
}

@media (max-width: 920px) {
  .tool-layout {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 640px) {
  .form-grid,
  .tool-sidebar {
    grid-template-columns: 1fr;
  }

  .tool-tabs {
    flex-direction: column;
  }

  .tool-tab {
    width: 100%;
  }
}

/* Result tables */

.result-table-wrap {
  width: 100%;
  overflow-x: auto;
}

.result-table {
  width: 100%;
  border-collapse: collapse;
  color: var(--color-text);
}

.result-table th,
.result-table td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--color-card-border);
  text-align: left;
  vertical-align: top;
}

.result-table th {
  width: 230px;
  color: var(--color-green);
  font-weight: 900;
}

.result-table td {
  color: var(--color-muted);
}

.result-table code {
  color: var(--color-green);
  white-space: nowrap;
}

/* Password generator */

.password-output-box {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  margin-top: 22px;
}

.password-output-box input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid rgba(22, 139, 255, 0.42);
  border-radius: 12px;
  background: rgba(5, 8, 20, 0.88);
  color: var(--color-text);
  font: inherit;
  font-weight: 800;
}

.strength-box {
  margin-top: 14px;
  padding: 13px 14px;
  border-radius: 12px;
  border: 1px solid rgba(184, 76, 255, 0.28);
  background: rgba(255, 255, 255, 0.045);
  display: inline-flex;
  gap: 8px;
  align-items: center;
}

.strength-label {
  color: var(--color-muted);
  font-weight: 800;
}

.strength-value {
  color: var(--color-green);
  font-weight: 900;
}

.checkbox-grid {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.checkbox-option {
  padding: 14px;
  border: 1px solid var(--color-card-border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.045);
  color: var(--color-muted);
  font-weight: 800;
  display: flex;
  gap: 10px;
  align-items: center;
}

.checkbox-option input {
  width: 18px;
  height: 18px;
  accent-color: var(--color-green);
}

.password-result-value {
  font-size: clamp(1.2rem, 3vw, 2rem);
  word-break: break-all;
}

.generated-list {
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

.generated-list code {
  display: block;
  padding: 12px;
  border-radius: 12px;
  background: rgba(5, 8, 20, 0.86);
  color: var(--color-green);
  word-break: break-all;
}

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

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

/* Tool directory */

.tool-directory-grid {
  margin-top: 30px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.tool-directory-card {
  min-height: 260px;
  padding: 24px;
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.055);
  box-shadow: var(--shadow-glow);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 22px;
}

.tool-directory-card.is-live {
  border-color: rgba(108, 255, 58, 0.25);
}

.tool-directory-card h3 {
  margin: 6px 0 10px;
  font-size: 1.45rem;
  line-height: 1.1;
}

.tool-directory-card p {
  color: var(--color-muted);
}

.tool-status {
  display: inline-flex;
  width: fit-content;
  margin: 0;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(108, 255, 58, 0.12);
  color: var(--color-green);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

@media (max-width: 760px) {
  .tool-directory-grid {
    grid-template-columns: 1fr;
  }
}

/* Suggestion CTA section */

.suggest-section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px 22px 90px;
}

.suggest-card {
  padding: clamp(28px, 5vw, 54px);
  border: 1px solid rgba(108, 255, 58, 0.24);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at top left, rgba(22, 139, 255, 0.18), transparent 26rem),
    radial-gradient(circle at bottom right, rgba(184, 76, 255, 0.16), transparent 24rem),
    rgba(255, 255, 255, 0.055);
  box-shadow: var(--shadow-glow);
}

.suggest-card h2 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(2rem, 5vw, 4.2rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.suggest-card p {
  max-width: 790px;
  color: var(--color-muted);
  font-size: 1.06rem;
}

/* Contact / suggestion page */

.contact-layout {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 22px 90px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 24px;
  align-items: start;
}

.contact-form {
  margin-top: 22px;
  display: grid;
  gap: 18px;
}

.contact-form label {
  color: var(--color-text);
  font-weight: 800;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  margin-top: 8px;
  padding: 13px 14px;
  border: 1px solid rgba(22, 139, 255, 0.42);
  border-radius: 12px;
  background: rgba(5, 8, 20, 0.88);
  color: var(--color-text);
  font: inherit;
}

.contact-form textarea {
  resize: vertical;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-green);
  box-shadow: 0 0 0 3px rgba(108, 255, 58, 0.15);
}

.full-width-checkbox {
  width: 100%;
}

@media (max-width: 920px) {
  .contact-layout {
    grid-template-columns: 1fr;
  }
}

/* Notice cards */

.notice-card {
  padding: clamp(22px, 4vw, 36px);
  border: 1px solid rgba(108, 255, 58, 0.24);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at top left, rgba(108, 255, 58, 0.12), transparent 24rem),
    rgba(255, 255, 255, 0.055);
  box-shadow: var(--shadow-glow);
}

.notice-card h2 {
  margin-top: 0;
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.notice-card p {
  color: var(--color-muted);
}

/* Legal pages */

.legal-section {
  max-width: 920px;
  margin: 0 auto;
  padding: 24px 22px 90px;
}

.legal-card {
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.055);
  box-shadow: var(--shadow-glow);
}

.legal-card h2 {
  margin-top: 34px;
  margin-bottom: 8px;
  font-size: clamp(1.35rem, 2.3vw, 2rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.legal-card h2:first-of-type {
  margin-top: 18px;
}

.legal-card p {
  color: var(--color-muted);
}

.legal-card a {
  color: var(--color-green);
  font-weight: 800;
}

/* Footer links */

.footer-links {
  margin-top: 14px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px 18px;
}

.footer-links a {
  color: var(--color-muted);
  font-size: 0.92rem;
  font-weight: 700;
}

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

/* File Size Converter layout improvements */

.file-size-form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  align-items: end;
}

.file-size-form-grid label {
  display: block;
  min-width: 0;
}

.file-size-form-grid input,
.file-size-form-grid select {
  width: 100%;
  max-width: 100%;
  min-height: 54px;
  box-sizing: border-box;
  font-size: 1rem;
}

.file-size-form-grid select {
  font-weight: 800;
  cursor: pointer;
}

@media (max-width: 820px) {
  .file-size-form-grid {
    grid-template-columns: 1fr;
  }
}