/* ============================================================
   HashScanner — Design System
   ============================================================ */

:root {
    --color-bg:       #ffffff;
    --color-primary:  #0f62fe;
    --color-primary-h:#0043ce;
    --color-text:     #1c1c1e;
    --color-muted:    #6b7280;
    --color-border:   #e5e7eb;
    --color-surface:  #f9fafb;
    --color-surface2: #f3f4f6;
    --color-green:    #00875a;
    --color-green-bg: #e6f4f0;
    --color-red:      #de350b;
    --color-red-bg:   #fde8e4;
    --color-yellow:   #b45309;
    --color-yellow-bg:#fef3c7;
    --color-navy:     #1a1a2e;
    --font:           system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-mono:      ui-monospace, "SF Mono", "Fira Code", monospace;
    --radius:         8px;
    --radius-lg:      12px;
    --shadow-sm:      0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
    --shadow:         0 4px 16px rgba(0,0,0,.08);
    --nav-h:          60px;
    --max-w:          1120px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--color-bg); color: var(--color-text);
       font-size: 16px; line-height: 1.6; }
img, svg { display: block; max-width: 100%; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
ul { list-style: none; }
input, textarea, select, button { font-family: inherit; font-size: inherit; }

/* ── Layout helpers ── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section { padding: 40px 0; }
.section--alt { background: var(--color-surface); }
.section--dark { background: var(--color-navy); color: #fff; }

/* ── Typography ── */
h1 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; line-height: 1.2; letter-spacing: -.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 700; line-height: 1.25; letter-spacing: -.01em; }
h3 { font-size: 1.25rem; font-weight: 600; line-height: 1.3; }
h4 { font-size: 1rem; font-weight: 600; }
p  { color: var(--color-muted); line-height: 1.7; }
.lead { font-size: 1.125rem; color: var(--color-muted); }
.text-center { text-align: center; }
.section-label { font-size: .75rem; font-weight: 600; letter-spacing: .08em;
                 text-transform: uppercase; color: var(--color-primary); margin-bottom: 12px; }

/* ── Buttons ── */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 20px; border-radius: var(--radius);
    font-weight: 600; font-size: .9375rem; cursor: pointer;
    border: 1.5px solid transparent; transition: all .15s ease;
    text-decoration: none; white-space: nowrap;
}
.btn-primary {
    background: var(--color-primary); color: #fff; border-color: var(--color-primary);
}
.btn-primary:hover { background: var(--color-primary-h); border-color: var(--color-primary-h); text-decoration: none; }
.btn-primary:disabled { opacity: .45; cursor: not-allowed; }
.btn-outline {
    background: transparent; color: var(--color-primary); border-color: var(--color-primary);
}
.btn-outline:hover { background: #f0f5ff; text-decoration: none; }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-sm { padding: 7px 14px; font-size: .875rem; }
.btn-ghost { background: rgba(255,255,255,.1); color: #fff; border-color: rgba(255,255,255,.25); }
.btn-ghost:hover { background: rgba(255,255,255,.2); text-decoration: none; }

/* ── Navigation ── */
.nav {
    position: sticky; top: 0; z-index: 100;
    height: var(--nav-h); background: rgba(255,255,255,.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
}
.nav__inner {
    max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
    height: 100%; display: flex; align-items: center; justify-content: space-between;
}
.nav__logo { display: flex; align-items: center; }
.nav__logo img { height: 36px; width: auto; }
.nav__links { display: flex; align-items: center; gap: 4px; }
.nav__links a {
    padding: 6px 12px; border-radius: 6px; font-size: .9rem;
    font-weight: 500; color: var(--color-text); transition: background .12s;
}
.nav__links a:hover { background: var(--color-surface); text-decoration: none; }
.nav__links a.active { color: var(--color-primary); }
.nav__actions { display: flex; align-items: center; gap: 10px; }
.nav__actions .btn-login {
    font-size: .9rem; font-weight: 500; color: var(--color-muted);
    padding: 6px 12px; border-radius: 6px;
}
.nav__actions .btn-login:hover { color: var(--color-text); background: var(--color-surface); text-decoration: none; }
.nav__toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav__toggle span { display: block; width: 22px; height: 2px; background: var(--color-text);
                    margin: 5px 0; transition: all .2s; }

/* ── Hero ── */
.hero { padding: 72px 0 80px; }
.hero__eyebrow { display: inline-flex; align-items: center; gap: 8px;
                 background: #eff4ff; color: var(--color-primary);
                 border: 1px solid #c7d9ff; border-radius: 20px;
                 padding: 4px 14px; font-size: .8125rem; font-weight: 600;
                 margin-bottom: 24px; }
.hero h1 { margin-bottom: 16px; max-width: 780px; }
.hero .lead { max-width: 600px; margin-bottom: 40px; }

/* ── Search Widget ── */
.search-widget {
    background: var(--color-bg); border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg); padding: 28px 32px;
    max-width: 720px; box-shadow: var(--shadow);
}
.search-widget__tabs { display: flex; gap: 0; margin-bottom: 20px;
                        border-bottom: 1px solid var(--color-border); }
.search-tab { padding: 8px 16px; font-weight: 500; font-size: .9rem; cursor: pointer;
               border: none; background: none; color: var(--color-muted);
               border-bottom: 2px solid transparent; margin-bottom: -1px; transition: all .15s; }
.search-tab.active { color: var(--color-primary); border-bottom-color: var(--color-primary); }
.search-widget textarea, .search-widget input[type="text"] {
    width: 100%; border: 1.5px solid var(--color-border); border-radius: var(--radius);
    padding: 12px 14px; font-size: .9375rem; resize: vertical; outline: none;
    transition: border-color .15s; background: var(--color-surface);
    font-family: var(--font-mono);
}
.search-widget textarea:focus, .search-widget input[type="text"]:focus {
    border-color: var(--color-primary); background: #fff;
    box-shadow: 0 0 0 3px rgba(15,98,254,.12);
}
.search-widget textarea { min-height: 56px; }
.search-widget textarea.bulk { min-height: 120px; }
.search-widget__hint { font-size: .8125rem; color: var(--color-muted); margin-top: 6px; min-height: 18px; }
.search-widget__hint.error { color: var(--color-red); }
.search-widget__footer { display: flex; align-items: center; justify-content: space-between;
                          margin-top: 16px; gap: 12px; flex-wrap: wrap; }
.search-widget__bulk { display: flex; align-items: center; gap: 8px;
                        font-size: .875rem; color: var(--color-muted); cursor: pointer; }
.search-widget__bulk input[type="checkbox"] { accent-color: var(--color-primary); width: 16px; height: 16px; }

/* ── Hash type badges ── */
.hash-types { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 28px; }
.hash-badge { display: inline-flex; align-items: center; gap: 6px;
               padding: 4px 12px; border-radius: 20px; font-size: .8125rem;
               font-weight: 600; font-family: var(--font-mono);
               background: var(--color-surface2); color: var(--color-text); border: 1px solid var(--color-border); }
.hash-badge span { width: 8px; height: 8px; border-radius: 50%; background: var(--color-primary); }

/* ── Source cards ── */
.source-strip { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; margin-top: 40px; }
.source-card { display: flex; align-items: center; gap: 10px; padding: 10px 16px;
                border: 1px solid var(--color-border); border-radius: var(--radius);
                font-size: .875rem; font-weight: 500; background: var(--color-bg);
                box-shadow: var(--shadow-sm); }
.source-card__icon { width: 28px; height: 28px; border-radius: 6px;
                      background: var(--color-navy); display: flex; align-items: center;
                      justify-content: center; font-size: .75rem; font-weight: 700;
                      color: #fff; font-family: var(--font-mono); flex-shrink: 0; }

/* ── Cards / Feature grid ── */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; margin-top: 48px; }
.card {
    background: var(--color-bg); border: 1px solid var(--color-border);
    border-radius: var(--radius-lg); padding: 28px 24px;
    box-shadow: var(--shadow-sm); transition: box-shadow .2s, border-color .2s;
}
.card:hover { box-shadow: var(--shadow); border-color: #d1d5db; }
.card__icon { width: 44px; height: 44px; border-radius: 10px;
              background: #eff4ff; display: flex; align-items: center;
              justify-content: center; margin-bottom: 16px; font-size: 1.25rem; }
.card h3 { margin-bottom: 8px; }
.card p { font-size: .9rem; }

/* ── Results table ── */
.results-table-wrap { overflow-x: auto; border: 1px solid var(--color-border);
                       border-radius: var(--radius-lg); margin-top: 40px; }
.results-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.results-table thead { background: var(--color-surface); border-bottom: 1px solid var(--color-border); }
.results-table th { padding: 12px 16px; font-weight: 600; text-align: left; font-size: .8125rem;
                     letter-spacing: .03em; text-transform: uppercase; color: var(--color-muted); }
.results-table td { padding: 13px 16px; border-bottom: 1px solid var(--color-border);
                     vertical-align: middle; }
.results-table tr:last-child td { border-bottom: none; }
.results-table tr:hover td { background: var(--color-surface); }
.results-table .hash-cell { font-family: var(--font-mono); font-size: .8125rem; color: var(--color-text); }
.status-badge { display: inline-flex; align-items: center; gap: 5px;
                 padding: 3px 10px; border-radius: 20px; font-size: .8rem; font-weight: 600; }
.status-clean   { background: var(--color-green-bg);  color: var(--color-green); }
.status-threat  { background: var(--color-red-bg);    color: var(--color-red); }
.status-unknown { background: var(--color-yellow-bg); color: var(--color-yellow); }

/* ── Value props (3-col) ── */
.value-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
               gap: 32px; margin-top: 48px; }
.value-item h3 { margin-bottom: 8px; }
.value-item .icon { font-size: 1.75rem; margin-bottom: 12px; }

/* ── CTA Section ── */
.cta-section { padding: 72px 0; text-align: center; }
.cta-section h2 { color: #fff; margin-bottom: 12px; }
.cta-section p { color: rgba(255,255,255,.7); margin-bottom: 32px; font-size: 1.0625rem; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ── Pricing ── */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
                 gap: 20px; margin-top: 48px; align-items: start; }
.pricing-card { border: 1.5px solid var(--color-border); border-radius: var(--radius-lg);
                 padding: 32px 28px; background: var(--color-bg); position: relative; }
.pricing-card--featured { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(15,98,254,.12); }
.pricing-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
                  background: var(--color-primary); color: #fff;
                  font-size: .75rem; font-weight: 700; padding: 3px 14px;
                  border-radius: 20px; white-space: nowrap; }
.pricing-card h3 { font-size: 1.125rem; margin-bottom: 4px; }
.pricing-card .price { font-size: 2.25rem; font-weight: 700; line-height: 1.1; margin: 16px 0 4px; }
.pricing-card .price span { font-size: 1rem; font-weight: 400; color: var(--color-muted); }
.pricing-card .tagline { font-size: .875rem; margin-bottom: 24px; }
.pricing-table { width: 100%; margin: 20px 0 28px; }
.pricing-table tr { border-bottom: 1px solid var(--color-border); }
.pricing-table tr:last-child { border-bottom: none; }
.pricing-table td { padding: 8px 0; font-size: .875rem; }
.pricing-table td:last-child { text-align: right; font-weight: 600; color: var(--color-text); }
.pricing-table td:first-child { color: var(--color-muted); }
.pricing-best { font-size: .8125rem; color: var(--color-muted); margin-bottom: 8px; }
.pricing-best strong { display: block; margin-bottom: 4px; font-size: .75rem; text-transform: uppercase;
                         letter-spacing: .06em; color: var(--color-primary); }

/* ── Comparison table ── */
.compare-wrap { overflow-x: auto; margin-top: 24px; }
.compare-table { width: 100%; border-collapse: collapse; font-size: .875rem; }
.compare-table th, .compare-table td { padding: 11px 16px; text-align: center; border-bottom: 1px solid var(--color-border); }
.compare-table th:first-child, .compare-table td:first-child { text-align: left; color: var(--color-muted); font-weight: 400; min-width: 180px; }
.compare-table thead th { font-weight: 700; font-size: 1rem; color: var(--color-text); border-bottom: none; padding-bottom: 6px; vertical-align: bottom; }
.compare-featured { background: rgba(15,98,254,.04); }
.compare-table thead .compare-featured { color: var(--color-primary); }
.compare-badge { background: var(--color-primary); color: #fff; font-size: .7rem; font-weight: 700;
                  padding: 2px 10px; border-radius: 20px; display: inline-block; margin-bottom: 5px; }
.compare-price-row td { font-size: 1.75rem; font-weight: 700; border-bottom: none; padding-top: 2px; padding-bottom: 2px; }
.compare-price-row td span { font-size: .875rem; font-weight: 400; color: var(--color-muted); }
.compare-price-row td.compare-empty { font-size: 1rem; }
.compare-cta-row td { border-bottom: 2px solid var(--color-border); padding-bottom: 16px; padding-top: 10px; }
.compare-table tbody tr:last-child td { border-bottom: none; }
.compare-check { color: var(--color-primary); font-size: 1.1rem; }

/* Tooltips on feature labels */
.has-tip { cursor: help; text-decoration: underline dotted currentColor; text-underline-offset: 3px; position: relative; }
.has-tip::after { content: attr(data-tip); position: absolute; left: 0; top: calc(100% + 7px);
  width: 230px; background: #1e2433; color: #e2e8f0; font-size: .78rem; line-height: 1.5;
  padding: 8px 11px; border-radius: 6px; z-index: 200; pointer-events: none;
  opacity: 0; transition: opacity .15s; white-space: normal; font-weight: 400; }
.has-tip:hover::after { opacity: 1; }

/* ── API docs ── */
.api-section { margin-top: 48px; }
.api-section + .api-section { margin-top: 56px; }
.api-section h2 { margin-bottom: 20px; }
.code-block { background: #1e2433; color: #e2e8f0; border-radius: var(--radius);
               padding: 20px 24px; font-family: var(--font-mono); font-size: .8375rem;
               line-height: 1.7; overflow-x: auto; position: relative; }
.code-block__lang { position: absolute; top: 10px; right: 14px; font-size: .7rem;
                     color: #64748b; letter-spacing: .06em; text-transform: uppercase; }
.code-block .kw  { color: #7dd3fc; }
.code-block .str { color: #86efac; }
.code-block .cmt { color: #64748b; }
.endpoint-row { display: flex; align-items: flex-start; gap: 16px; padding: 16px 0;
                  border-bottom: 1px solid var(--color-border); }
.endpoint-row:first-child { border-top: 1px solid var(--color-border); }
.method-badge { font-family: var(--font-mono); font-size: .8rem; font-weight: 700;
                 padding: 3px 10px; border-radius: 4px; white-space: nowrap; min-width: 58px;
                 text-align: center; }
.method-get  { background: var(--color-green-bg);  color: var(--color-green); }
.method-post { background: #eff4ff; color: var(--color-primary); }
.endpoint-path { font-family: var(--font-mono); font-size: .9rem; font-weight: 600; }
.endpoint-desc { font-size: .875rem; color: var(--color-muted); margin-top: 2px; }

/* ── Contact ── */
.contact-grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: 64px;
                  margin-top: 48px; align-items: start; }
.contact-info h3 { margin-bottom: 12px; }
.contact-info p { margin-bottom: 24px; }
.contact-detail { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 20px;
                    font-size: .9375rem; }
.contact-detail__label { font-size: .75rem; text-transform: uppercase; letter-spacing: .06em;
                           font-weight: 600; color: var(--color-muted); margin-bottom: 2px; }
.contact-detail__value a { color: var(--color-text); font-weight: 500; }
.contact-form { background: var(--color-bg); border: 1px solid var(--color-border);
                 border-radius: var(--radius-lg); padding: 36px 32px; box-shadow: var(--shadow-sm); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: .875rem; font-weight: 600;
                     margin-bottom: 6px; color: var(--color-text); }
.form-group label .opt { font-weight: 400; color: var(--color-muted); }
.form-group input, .form-group textarea, .form-group select {
    width: 100%; border: 1.5px solid var(--color-border); border-radius: var(--radius);
    padding: 10px 14px; outline: none; transition: border-color .15s;
    background: var(--color-surface);
}
.form-group input:focus, .form-group textarea:focus {
    border-color: var(--color-primary); background: #fff;
    box-shadow: 0 0 0 3px rgba(15,98,254,.12);
}
.form-group textarea { min-height: 140px; resize: vertical; }
.form-hp { display: none; }
.form-notice { font-size: .8125rem; color: var(--color-muted); margin-top: -12px; margin-bottom: 20px; }
.alert { padding: 14px 18px; border-radius: var(--radius); margin-bottom: 24px;
          font-size: .9rem; font-weight: 500; }
.alert-success { background: var(--color-green-bg); color: var(--color-green); border: 1px solid #a7f0d7; }
.alert-error   { background: var(--color-red-bg);   color: var(--color-red);   border: 1px solid #fbb; }

/* ── About ── */
.about-hero { padding: 72px 0 64px; }
.about-stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
                    gap: 24px; margin: 48px 0; }
.about-stat { text-align: center; padding: 24px 16px; border: 1px solid var(--color-border);
               border-radius: var(--radius-lg); }
.about-stat .num { font-size: 2rem; font-weight: 700; color: var(--color-primary); }
.about-stat .lbl { font-size: .85rem; color: var(--color-muted); margin-top: 4px; }
.team-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
              gap: 20px; margin-top: 40px; }
.team-card { text-align: center; padding: 28px 20px; border: 1px solid var(--color-border);
              border-radius: var(--radius-lg); }
.team-card__avatar { width: 64px; height: 64px; border-radius: 50%;
                      background: var(--color-surface2); margin: 0 auto 16px;
                      display: flex; align-items: center; justify-content: center;
                      font-size: 1.5rem; }

/* ── Use cases ── */
.usecase-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
                 gap: 20px; margin-top: 48px; }
.usecase-card { border: 1px solid var(--color-border); border-radius: var(--radius-lg);
                 padding: 28px 24px; background: var(--color-bg);
                 transition: box-shadow .2s, border-color .2s; }
.usecase-card:hover { box-shadow: var(--shadow); border-color: #d1d5db; }
.usecase-card .tag { font-size: .75rem; font-weight: 600; letter-spacing: .06em;
                      text-transform: uppercase; color: var(--color-primary); margin-bottom: 12px; }
.usecase-card h3 { margin-bottom: 10px; }
.usecase-card ul { margin-top: 14px; display: flex; flex-direction: column; gap: 6px; }
.usecase-card ul li { font-size: .875rem; color: var(--color-muted);
                       display: flex; align-items: flex-start; gap: 8px; }
.usecase-card ul li::before { content: "→"; color: var(--color-primary); flex-shrink: 0; }

/* ── Footer ── */
.footer { background: var(--color-navy); color: rgba(255,255,255,.7); padding: 56px 0 32px; }
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
                 padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer__brand img { filter: invert(1) brightness(2); height: 32px; margin-bottom: 14px; }
.footer__brand p { font-size: .875rem; max-width: 240px; line-height: 1.6; }
.footer__col h4 { color: #fff; font-size: .875rem; font-weight: 600; margin-bottom: 16px;
                   letter-spacing: .04em; text-transform: uppercase; }
.footer__col ul { display: flex; flex-direction: column; gap: 10px; }
.footer__col ul li a { color: rgba(255,255,255,.65); font-size: .875rem; transition: color .12s; }
.footer__col ul li a:hover { color: #fff; text-decoration: none; }
.footer__bottom { display: flex; align-items: center; justify-content: space-between;
                   padding-top: 28px; font-size: .8125rem; flex-wrap: wrap; gap: 12px; }
.footer__bottom a { color: rgba(255,255,255,.55); }
.footer__bottom a:hover { color: #fff; text-decoration: none; }

/* ── Page header ── */
.page-header { padding: 56px 0 48px; border-bottom: 1px solid var(--color-border); }
.page-header h1 { margin-bottom: 12px; }
.page-header .lead { max-width: 580px; }

/* ── Responsive ── */
@media (max-width: 768px) {
    .nav__links { display: none; flex-direction: column; gap: 4px;
                  position: absolute; top: var(--nav-h); left: 0; right: 0;
                  background: #fff; padding: 12px 24px 20px;
                  border-bottom: 1px solid var(--color-border); }
    .nav__links.open { display: flex; }
    .nav__toggle { display: block; }
    .nav__actions .btn { display: none; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer__grid { grid-template-columns: 1fr 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .cta-actions { flex-direction: column; align-items: center; }
    .search-widget { padding: 20px; }
}
@media (max-width: 480px) {
    .footer__grid { grid-template-columns: 1fr; }
}