/* =========================================================
   DEVLOVEPER — STYLE.CSS
   Table of contents:
   1. Reset            10. Cards
   2. Variables         11. Product sections
   3. Themes            12. Service sections
   4. Typography        13. Forms
   5. Layout            14. Footer
   6. Header            15. Responsive
   7. Navigation        16. Accessibility
   8. Buttons           17. Reduced motion
   9. Hero
   ========================================================= */

/* ---------------------------------------------------------
   1. RESET
--------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html, body, h1, h2, h3, h4, p, figure, blockquote, dl, dd, ul, ol { margin: 0; }
ul[class], ol[class] { list-style: none; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body { min-height: 100vh; text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased; }
img, picture, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }

/* ---------------------------------------------------------
   2. VARIABLES
--------------------------------------------------------- */
:root {
  /* type */
  --font-display: 'Space Grotesk', 'Segoe UI', Arial, sans-serif;
  --font-body: 'IBM Plex Sans', 'Segoe UI', Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;

  /* layout */
  --maxw: 1240px;
  --gutter: 24px;
  --radius-sm: 3px;
  --radius: 6px;

  /* motion */
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --dur-fast: 140ms;
  --dur: 240ms;

  /* light theme (default) */
  --bg: #F6F8F7;
  --surface: #FFFFFF;
  --surface-2: #EDF2EF;
  --text: #101512;
  --text-muted: #57635D;
  --border: #DBE3DE;
  --accent: #1C8A5B;
  --accent-strong: #146B46;
  --accent-soft: rgba(28, 138, 91, 0.10);
  --accent-contrast: #FBFEFC;
  --shadow-ring: 0 0 0 3px var(--accent-soft);
  --code-bg: #0E1310;
  --code-text: #CFEADB;
  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #0A0E0C;
  --surface: #101512;
  --surface-2: #161C19;
  --text: #E9EEEB;
  --text-muted: #98A6A0;
  --border: #232B27;
  --accent: #49C08A;
  --accent-strong: #6BD6A4;
  --accent-soft: rgba(73, 192, 138, 0.16);
  --accent-contrast: #05130C;
  --shadow-ring: 0 0 0 3px var(--accent-soft);
  --code-bg: #05100A;
  --code-text: #B9F0D2;
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --bg: #0A0E0C;
    --surface: #101512;
    --surface-2: #161C19;
    --text: #E9EEEB;
    --text-muted: #98A6A0;
    --border: #232B27;
    --accent: #49C08A;
    --accent-strong: #6BD6A4;
    --accent-soft: rgba(73, 192, 138, 0.16);
    --accent-contrast: #05130C;
    --code-bg: #05100A;
    --code-text: #B9F0D2;
    color-scheme: dark;
  }
}

/* ---------------------------------------------------------
   3. THEMES / BASE
--------------------------------------------------------- */
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

::selection { background: var(--accent); color: var(--accent-contrast); }

/* ---------------------------------------------------------
   4. TYPOGRAPHY
--------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--text);
}
h1 { font-size: clamp(2.3rem, 3.2vw + 1.3rem, 4rem); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.7rem, 1.6vw + 1.1rem, 2.5rem); }
h3 { font-size: clamp(1.2rem, 0.6vw + 1rem, 1.5rem); }
h4 { font-size: 1.05rem; }

p { line-height: 1.65; color: var(--text); max-width: 62ch; }
p.lead { font-size: 1.15rem; color: var(--text-muted); max-width: 58ch; }
.muted { color: var(--text-muted); }

.mono {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.01em;
}

a.inline-link {
  color: var(--accent);
  border-bottom: 1px solid var(--accent-soft);
  transition: border-color var(--dur-fast) var(--ease);
}
a.inline-link:hover { border-color: var(--accent); }

code, pre {
  font-family: var(--font-mono);
}

/* ---------------------------------------------------------
   5. LAYOUT
--------------------------------------------------------- */
.wrap {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

main { display: block; }

section { padding-block: clamp(56px, 8vw, 108px); }

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-bottom: clamp(32px, 4vw, 56px);
  max-width: 640px;
}

.section-head .path {
  color: var(--accent);
}

.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

.grid {
  display: grid;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.grid > * { background: var(--bg); }

.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 10px 16px;
  z-index: 200;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus {
  left: 0;
}

/* ---------------------------------------------------------
   6. HEADER
--------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 68px;
}

.logo {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text);
}
.logo .lp { color: var(--text-muted); }
.logo .cursor {
  display: inline-block;
  width: 8px;
  height: 1em;
  margin-left: 2px;
  background: var(--accent);
  animation: blink 1.1s step-end infinite;
  transform: translateY(1px);
}

@keyframes blink { 50% { opacity: 0; } }

/* ---------------------------------------------------------
   7. NAVIGATION
--------------------------------------------------------- */
.nav-desktop { display: flex; align-items: center; gap: 4px; }
.nav-desktop a {
  padding: 8px 14px;
  font-size: 0.94rem;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}
.nav-desktop a:hover { color: var(--text); background: var(--surface-2); }
.nav-desktop a[aria-current="page"] { color: var(--accent); }

.header-actions { display: flex; align-items: center; gap: 10px; }

.theme-toggle {
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}
.theme-toggle:hover { border-color: var(--accent); background: var(--surface-2); }
.theme-toggle svg { width: 17px; height: 17px; }
.theme-toggle .icon-moon { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

.nav-toggle {
  display: none;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
}
.nav-toggle span, .nav-toggle::before, .nav-toggle::after {
  content: "";
  display: block;
  width: 16px;
  height: 1.5px;
  background: var(--text);
  position: relative;
}
.nav-toggle::before { position: absolute; transform: translateY(-6px); }
.nav-toggle::after { position: absolute; transform: translateY(6px); }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"]::before { transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"]::after { transform: rotate(-45deg); }

.mobile-nav {
  display: none;
  flex-direction: column;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 16px var(--gutter);
  border-top: 1px solid var(--border);
  font-size: 1rem;
  color: var(--text);
}
.mobile-nav a[aria-current="page"] { color: var(--accent); }
.mobile-nav .cta { color: var(--accent); }

/* ---------------------------------------------------------
   8. BUTTONS
--------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  border: 1px solid transparent;
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--accent);
  color: var(--accent-contrast);
}
.btn-primary:hover { background: var(--accent-strong); }

.btn-ghost {
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.btn-sm { padding: 9px 16px; font-size: 0.88rem; }

/* ---------------------------------------------------------
   9. HERO
--------------------------------------------------------- */
.hero {
  padding-block: clamp(48px, 8vw, 96px) clamp(48px, 6vw, 80px);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.hero-eyebrow {
  color: var(--accent);
  margin-bottom: 18px;
  display: inline-block;
}
.hero h1 { margin-bottom: 20px; }
.hero p.lead { margin-bottom: 30px; }
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 34px; }

.hero-meta {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  padding-top: 22px;
  border-top: 1px solid var(--border);
}
.hero-meta div { display: flex; flex-direction: column; gap: 4px; }
.hero-meta .num { font-family: var(--font-display); font-size: 1.05rem; color: var(--text); }
.hero-meta .label { font-size: 0.82rem; color: var(--text-muted); }

/* terminal window visual */
.term {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 60px -30px rgba(0,0,0,0.45);
}
.term-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.term-dot { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,255,255,0.16); }
.term-title {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: rgba(255,255,255,0.4);
}
.term-body {
  padding: 22px 20px 26px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.9;
  color: var(--code-text);
}
.term-body .prompt { color: rgba(255,255,255,0.4); }
.term-body .out { color: var(--code-text); }
.term-body .path { color: #6BD6A4; }
.term-line { white-space: pre-wrap; }
.term-cursor {
  display: inline-block;
  width: 7px;
  height: 1em;
  background: #6BD6A4;
  animation: blink 1.1s step-end infinite;
  transform: translateY(2px);
}

/* ---------------------------------------------------------
   10. CARDS
--------------------------------------------------------- */
.card {
  padding: 28px 26px;
  background: var(--bg);
  transition: background var(--dur) var(--ease);
}
.card .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--accent);
  margin-bottom: 14px;
}
.card h3 { margin-bottom: 10px; }
.card p { font-size: 0.95rem; color: var(--text-muted); }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 0.88rem;
  color: var(--accent);
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 520ms var(--ease), transform 520ms var(--ease);
}

/* ---------------------------------------------------------
   11. PRODUCT SECTIONS
--------------------------------------------------------- */
.product-hero {
  padding-block: clamp(48px, 7vw, 84px) clamp(32px, 5vw, 56px);
  border-bottom: 1px solid var(--border);
}
.breadcrumbs {
  display: flex;
  gap: 8px;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 22px;
  flex-wrap: wrap;
}
.breadcrumbs a { color: var(--text-muted); }
.breadcrumbs a:hover { color: var(--accent); }
.breadcrumbs .sep { color: var(--border); }
.breadcrumbs .current { color: var(--accent); }

.kv-list { display: flex; flex-direction: column; }
.kv-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  padding-block: 20px;
  border-top: 1px solid var(--border);
}
.kv-row:last-child { border-bottom: 1px solid var(--border); }
.kv-row .k { font-family: var(--font-mono); font-size: 0.85rem; color: var(--text-muted); }
.kv-row .v { color: var(--text); }

.check-list { display: flex; flex-direction: column; gap: 14px; }
.check-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 0.98rem;
}
.check-list .mark {
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  border: 1px solid var(--accent);
  border-radius: 3px;
  position: relative;
}
.check-list .mark::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 4px;
  height: 9px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(38deg);
}

.faq-item {
  border-top: 1px solid var(--border);
  padding-block: 20px;
}
.faq-item:last-child { border-bottom: 1px solid var(--border); }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 1.2rem;
  flex: none;
}
.faq-item[open] summary::after { content: "\2212"; }
.faq-item p { margin-top: 12px; color: var(--text-muted); }

.data-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border);
}
.data-table caption { text-align: left; margin-bottom: 12px; color: var(--text-muted); font-size: 0.88rem; }
.data-table th, .data-table td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 0.94rem;
}
.data-table thead th {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
  border-bottom: 1px solid var(--border);
}
.data-table td.center, .data-table th.center { text-align: center; }
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table .yes { color: var(--accent); font-family: var(--font-mono); }
.data-table a { color: var(--accent); }

.callout {
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 20px 22px;
  background: var(--surface);
}
.callout h3 { margin-bottom: 8px; }
.callout p:last-child { margin-bottom: 0; }

.pill-row { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 7px 14px;
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 100px;
}

.persona-card {
  padding: 24px;
  border: 1px solid var(--border);
}
.persona-card h4 { margin-bottom: 8px; }
.persona-card p { font-size: 0.92rem; color: var(--text-muted); margin: 0; }

/* ---------------------------------------------------------
   12. SERVICE SECTIONS
--------------------------------------------------------- */
.service-row {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: clamp(20px, 4vw, 56px);
  padding-block: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--border);
}
.service-row:last-of-type { border-bottom: 1px solid var(--border); }
.service-row .index {
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 0.85rem;
}
.service-row h3 { margin-bottom: 10px; }
.service-row .capabilities {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.chip {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-muted);
}

/* ---------------------------------------------------------
   13. FORMS
--------------------------------------------------------- */
.form-note {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  background: var(--surface);
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 22px; }
.field label { font-size: 0.88rem; color: var(--text-muted); font-family: var(--font-mono); }
.field input, .field textarea, .field select {
  padding: 13px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.98rem;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--shadow-ring);
}
.field textarea { resize: vertical; min-height: 130px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-status {
  margin-top: 14px;
  font-size: 0.9rem;
  color: var(--accent);
  display: none;
}
.form-status.visible { display: block; }

.contact-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  background: var(--surface);
}
.contact-panel h3 { margin-bottom: 6px; }
.contact-fact { display: flex; flex-direction: column; gap: 3px; padding-block: 16px; border-top: 1px solid var(--border); }
.contact-fact .k { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-muted); }
.contact-fact .v { font-size: 0.98rem; }

/* ---------------------------------------------------------
   14. FOOTER
--------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding-block: 56px 28px;
  margin-top: clamp(48px, 6vw, 80px);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 40px;
}
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 16px;
}
.footer-col a, .footer-col p { display: block; font-size: 0.92rem; color: var(--text-muted); margin-bottom: 10px; }
.footer-col a:hover { color: var(--accent); }
.footer-brand p { max-width: 32ch; color: var(--text-muted); font-size: 0.92rem; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.84rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ---------------------------------------------------------
   15. RESPONSIVE
--------------------------------------------------------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .service-row { grid-template-columns: 1fr; }
  .service-row .index { display: none; }
}

@media (max-width: 720px) {
  .nav-desktop { display: none; }
  .nav-toggle { display: inline-flex; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .form-row { grid-template-columns: 1fr; }
  .kv-row { grid-template-columns: 1fr; gap: 6px; }
  h1 { max-width: 100%; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .hero-meta { gap: 20px; }
}

/* ---------------------------------------------------------
   16. ACCESSIBILITY
--------------------------------------------------------- */
a:focus-visible, button:focus-visible, input:focus-visible,
textarea:focus-visible, summary:focus-visible, .card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ---------------------------------------------------------
   17. REDUCED MOTION
--------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}