:root {
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  color: #0f172a;
}

body {
  margin: 0;
  background: #f3f6fb;
  line-height: 1.65;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 18px;
}

.md5-hero {
  background: linear-gradient(120deg, #0f6efc, #5b1bff);
  color: #fff;
  padding: 56px 0 48px;
}

.md5-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 28px;
  align-items: center;
}

.md5-eyebrow {
  letter-spacing: 0.25em;
  text-transform: uppercase;
  font-size: 0.75rem;
  margin-bottom: 12px;
}

.md5-hero h1 {
  font-size: clamp(2.1rem, 4vw, 3rem);
  margin: 0 0 10px;
}

.md5-subtitle {
  font-size: 1.05rem;
  opacity: 0.95;
}

.md5-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.md5-hero-meta span {
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
}

.md5-hero-card {
  background: rgba(255, 255, 255, 0.12);
  border-radius: 22px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.18);
}

.md5-hero-icon {
  width: 62px;
  height: 62px;
  border-radius: 16px;
  background: #fff;
  color: #0f6efc;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 1.2rem;
  margin-bottom: 14px;
}

.md5-hero-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.md5-hero-badges span {
  background: rgba(255, 255, 255, 0.16);
  padding: 6px 10px;
  border-radius: 12px;
  font-size: 0.9rem;
}

.md5-main {
  padding: 36px 0 60px;
}

.md5-grid {
  display: grid;
  grid-template-columns: minmax(0, 2.1fr) minmax(0, 0.9fr);
  gap: 18px;
  align-items: start;
}

.md5-card,
.md5-sidebar-card,
.md5-info-card,
.md5-faq-card {
  background: #fff;
  border-radius: 20px;
  padding: 22px;
  box-shadow: 0 18px 44px rgba(15, 23, 42, 0.08);
  border: 1px solid #e2e8f0;
}

.md5-card-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.md5-head-actions {
  display: flex;
  gap: 8px;
}

.primary-btn,
.ghost-btn {
  border: none;
  border-radius: 999px;
  padding: 0.85rem 1.6rem;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.primary-btn {
  background: linear-gradient(135deg, #0f6efc, #5b1bff);
  color: #fff;
  box-shadow: 0 12px 28px rgba(15, 110, 252, 0.26);
}

.ghost-btn {
  background: #fff;
  color: #0f6efc;
  border: 1px solid #dbeafe;
}

.primary-btn:hover,
.ghost-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.12);
}

.md5-label {
  font-weight: 700;
  display: block;
  margin-top: 12px;
}

textarea,
input[type="text"] {
  width: 100%;
  border-radius: 12px;
  border: 1px solid #d6d9e8;
  padding: 12px;
  font-size: 1rem;
  font-family: inherit;
  background: #f8fafc;
}

textarea {
  min-height: 200px;
  resize: vertical;
}

textarea:focus,
input[type="text"]:focus {
  outline: none;
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.md5-result {
  margin-top: 14px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 14px;
}

.md5-result-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.md5-output {
  background: #fff;
  border: 1px dashed #cbd5e1;
  border-radius: 12px;
  padding: 12px;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-weight: 700;
  word-break: break-all;
}

.md5-output.small {
  font-weight: 600;
  font-size: 0.95rem;
}

.md5-output-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  margin-top: 10px;
}

.md5-compare {
  margin-top: 12px;
}

.md5-status {
  margin: 6px 0 0;
  font-weight: 700;
}

.md5-status.match {
  color: #15803d;
}

.md5-status.mismatch {
  color: #b91c1c;
}

.md5-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 6px;
  margin-top: 10px;
}

.md5-options {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 10px 0;
}

.md5-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
}

.md5-history {
  margin-top: 12px;
}

.md5-history-list {
  list-style: none;
  padding: 0;
  margin: 6px 0 0;
  display: grid;
  gap: 6px;
}

.md5-history-list li {
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  padding: 8px 10px;
  background: #f8fafc;
  font-size: 0.95rem;
}

.md5-history-list .hash {
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-weight: 700;
  display: block;
}

.md5-history .ghost-btn.sm {
  padding: 6px 10px;
  font-size: 0.9rem;
  border-radius: 10px;
}

.md5-file-card {
  margin-top: 12px;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 14px;
  background: #f8fafc;
}

.md5-file-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.md5-file-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 8px 0;
}

.md5-file-row input {
  flex: 1;
}

.md5-file-results {
  display: grid;
  gap: 6px;
  font-weight: 600;
}

.md5-sidebar {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.md5-sidebar-card ul {
  padding-left: 18px;
  margin: 8px 0 0;
}

.md5-seo {
  padding: 0 0 50px;
}

.md5-seo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
}

.md5-faq {
  background: #fff;
  padding: 40px 0 60px;
}

.md5-faq-header p {
  color: #475569;
}

.md5-faq-card summary {
  cursor: pointer;
}

.md5-faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.md5-faq-card summary {
  cursor: pointer;
  font-weight: 700;
}

.md5-faq-card p {
  margin-top: 8px;
  color: #334155;
}

.md5-compare input {
  margin-top: 6px;
}

@media (max-width: 1024px) {
  .md5-hero-inner,
  .md5-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .md5-card,
  .md5-sidebar-card,
  .md5-info-card,
  .md5-faq-card,
  .md5-hero-card {
    padding: 18px;
  }

  textarea {
    min-height: 160px;
  }
}