/* ==========================================================================
   DIGIFORGE CONSULTING SG — High-Performance Lightweight Stylesheet
   Built with semantic CSS variables, Auto/Dark/Light theme switching,
   responsive clamp typography, and zero heavy dependencies.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Manrope:wght@400;500;600;700;800&display=swap');

/* ─── 1. CSS Custom Properties & Themes ───────────────────────────────── */
:root {
  color-scheme: light;
  --bg: #ffffff;
  --surface: #f4f7f8;
  --surface-2: #eaf0f2;
  --text: #142132;
  --muted: #5d6a78;
  --border: #dce4e8;
  --navy: #101c2c;
  --navy-2: #1b2b3d;
  --mint: #b7e9d8;
  --mint-strong: #58b79b;
  --ink-text: #f6f8fa;
  --accent-action: #ea580c;
  --shadow: 0 16px 45px rgba(18, 35, 52, 0.08);
  --radius: 16px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --font-sans: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'DM Mono', monospace;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b1420;
  --surface: #101c2c;
  --surface-2: #19283a;
  --text: #edf3f7;
  --muted: #a7b4c2;
  --border: #2c3b4d;
  --navy: #070e17;
  --navy-2: #132338;
  --mint: #b7e9d8;
  --mint-strong: #8bd7bd;
  --ink-text: #f6f8fa;
  --shadow: 0 16px 45px rgba(0, 0, 0, 0.25);
}

@media (prefers-color-scheme: dark) {
  :root[data-theme="auto"] {
    color-scheme: dark;
    --bg: #0b1420;
    --surface: #101c2c;
    --surface-2: #19283a;
    --text: #edf3f7;
    --muted: #a7b4c2;
    --border: #2c3b4d;
    --navy: #070e17;
    --navy-2: #132338;
    --mint: #b7e9d8;
    --mint-strong: #8bd7bd;
    --ink-text: #f6f8fa;
    --shadow: 0 16px 45px rgba(0, 0, 0, 0.25);
  }
}

/* ─── 2. Reset & Base Typography ───────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.65;
  font-size: 15px;
  overflow-x: hidden;
  transition: background-color 0.25s ease, color 0.25s ease;
}

body.nav-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

button, input, textarea, select {
  font: inherit;
  color: inherit;
}

button, a, input, textarea, select {
  outline-offset: 4px;
}

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 3px solid var(--mint-strong);
}

/* ─── 3. Layout Containers ─────────────────────────────────────────────── */
.container {
  width: min(1180px, calc(100% - 44px));
  margin-inline: auto;
}

.narrow {
  max-width: 860px;
  margin-inline: auto;
}

.section {
  padding: 88px 0;
}

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

.section-ink {
  background: var(--navy);
  color: var(--ink-text);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 10px;
  background: var(--bg);
  padding: 10px 14px;
  z-index: 99;
}
.skip-link:focus {
  left: 10px;
}

/* ─── 4. Header & Navigation ───────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-wrap {
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius-md);
  font-weight: 800;
  font-size: 20px;
  position: relative;
  border: 1px solid var(--border);
}

:root[data-theme="dark"] .brand-mark {
  background: var(--surface-2);
  border-color: var(--mint-strong);
}

.brand-mark span {
  position: absolute;
  right: 4px;
  top: 0;
  color: var(--mint);
  font-size: 11px;
}

.brand-name {
  font-size: 14px;
  letter-spacing: 0.12em;
  font-weight: 800;
  line-height: 1.2;
}

.brand-name small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font: 500 9px var(--font-mono);
  letter-spacing: 0.18em;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 13px;
  font-weight: 700;
}

.primary-nav > a:not(.nav-cta) {
  color: var(--muted);
  padding: 8px 4px;
  border-radius: 6px;
}

.primary-nav > a:hover,
.primary-nav > a.active {
  color: var(--text);
}

.nav-cta {
  background: var(--navy);
  color: #fff !important;
  padding: 11px 16px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  font-weight: 800;
  font-size: 12px;
  transition: transform 0.2s, background 0.2s;
}

:root[data-theme="dark"] .nav-cta {
  background: var(--mint-strong);
  color: #0b1420 !important;
}

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

.theme-toggle, .menu-toggle {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.theme-icon {
  font-size: 15px;
}

.menu-toggle {
  display: none;
}

/* ─── 5. Typography & Eyebrows ─────────────────────────────────────────── */
.eyebrow {
  font: 500 11px var(--font-mono);
  letter-spacing: 0.14em;
  color: var(--mint-strong);
  margin: 0 0 16px;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}

.eyebrow-dot, .status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mint-strong);
}

h1, h2, h3, h4 {
  font-weight: 800;
  color: var(--text);
}

.section-ink h1, .section-ink h2, .section-ink h3, .section-ink h4 {
  color: var(--ink-text);
}

.hero h1, .page-hero h1 {
  font-size: clamp(36px, 5.2vw, 64px);
  line-height: 1.12;
  letter-spacing: -0.05em;
  margin: 0 0 22px;
}

.accent-text {
  color: var(--mint-strong);
}

.hero-lede, .section-lede {
  font-size: 16.5px;
  color: var(--muted);
  line-height: 1.8;
  margin: 0 0 28px;
  max-width: 650px;
}

.microcopy {
  font-size: 11.5px;
  color: var(--muted);
  margin-top: 16px;
}

/* ─── 6. Buttons & Interactive Links ───────────────────────────────────── */
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 20px;
  border-radius: var(--radius-sm);
  font-weight: 800;
  font-size: 12.5px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s, background 0.2s, border-color 0.2s;
  white-space: nowrap;
}

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

.button-primary {
  background: var(--mint);
  color: #10251f;
  border-color: rgba(88, 183, 155, 0.3);
}

.button-secondary {
  border-color: var(--border);
  color: var(--text);
  background: var(--bg);
}

.button-light {
  background: #ffffff;
  color: #101c2c;
}

.button-full {
  width: 100%;
}

.text-link {
  font-size: 12.5px;
  font-weight: 800;
  color: var(--mint-strong);
  display: inline-flex;
  gap: 8px;
  align-items: center;
  transition: gap 0.2s ease;
}

.text-link:hover {
  gap: 14px;
}

/* ─── 7. Hero Section & Pillar Panels ─────────────────────────────────── */
.hero {
  padding: 84px 0 76px;
  background: radial-gradient(ellipse at 80% 10%, color-mix(in srgb, var(--mint) 22%, transparent), transparent 38%), var(--bg);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 60px;
}

.hero-panel {
  background: var(--navy);
  color: #fff;
  padding: 24px;
  border-radius: 20px;
  box-shadow: var(--shadow);
  border: 1px solid #2b3c4f;
}

.panel-top, .panel-bottom {
  display: flex;
  align-items: center;
  gap: 8px;
  font: 500 9.5px var(--font-mono);
  letter-spacing: 0.1em;
  color: #a9bacb;
}

.panel-index {
  margin-left: auto;
}

.pillar-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 16px;
  margin-top: 12px;
  background: var(--navy-2);
  border: 1px solid #2b3c4f;
  border-radius: var(--radius-md);
  transition: transform 0.2s, border-color 0.2s;
  color: #ffffff;
}

.pillar-card:hover {
  transform: translateX(4px);
  border-color: var(--mint-strong);
}

.pillar-icon {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--mint);
  color: #10251f;
  font-size: 16px;
  font-weight: 800;
}

.pillar-content {
  display: grid;
  gap: 4px;
}

.pillar-content strong {
  font-size: 13.5px;
  letter-spacing: 0.08em;
}

.pillar-content small {
  font-size: 11.5px;
  color: #b7c4d0;
}

.pillar-arrow {
  margin-left: auto;
  color: var(--mint);
}

.panel-bottom {
  justify-content: space-between;
  border-top: 1px solid #304155;
  margin-top: 20px;
  padding-top: 16px;
  font-size: 8.5px;
}

/* ─── 8. Trust Strip ───────────────────────────────────────────────────── */
.trust-strip {
  background: var(--surface);
  border-block: 1px solid var(--border);
}

.trust-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px 0;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 700;
}

.trust-inner span:first-child {
  font: 500 9.5px var(--font-mono);
  letter-spacing: 0.1em;
  color: var(--mint-strong);
}

/* ─── 9. Grids: Problem & Service Cards ────────────────────────────────── */
.section-heading {
  max-width: 740px;
  margin-bottom: 38px;
}

.section-heading h2, .approach-grid h2, .proof-grid h2, .audit-banner h2, .cta-row h2 {
  font-size: clamp(28px, 3.8vw, 42px);
  line-height: 1.2;
  letter-spacing: -0.04em;
  margin: 0 0 14px;
}

.split-heading {
  max-width: none;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
}

.problem-grid, .service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.problem-card, .service-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.problem-card {
  background: var(--surface);
}

.card-number {
  font: 500 9.5px var(--font-mono);
  letter-spacing: 0.12em;
  color: var(--mint-strong);
}

.problem-card h3, .service-card h3 {
  font-size: 19px;
  line-height: 1.35;
  letter-spacing: -0.025em;
  margin: 18px 0 10px;
}

.problem-card p, .service-card p, .service-card li {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.8;
}

.service-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.service-symbol {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--surface-2);
  color: var(--mint-strong);
  font-weight: 800;
  font-size: 18px;
}

.service-card ul {
  padding-left: 18px;
  margin: 8px 0 24px;
}

.service-card .text-link {
  margin-top: auto;
}

/* ─── 10. 4-Step Approach & Delivery ───────────────────────────────────── */
.approach-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.steps-list {
  border-top: 1px solid #34465a;
}

.step {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid #34465a;
}

.step > span {
  font: 500 13px var(--font-mono);
  color: var(--mint);
  padding-top: 2px;
}

.step h3 {
  font-size: 16px;
  margin: 0 0 4px;
  color: #fff;
}

.step p {
  font-size: 12.5px;
  color: #b8c5d2;
  margin: 0;
}

/* ─── 11. Capabilities & Proof Board ──────────────────────────────────── */
.proof-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 60px;
  align-items: center;
}

.note {
  font-size: 11px !important;
  color: var(--muted);
  padding-left: 12px;
  border-left: 2px solid var(--mint-strong);
  line-height: 1.8;
  margin: 16px 0;
}

.capability-board {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.capability-label {
  font: 500 9.5px var(--font-mono);
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 20px;
}

.capability-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.capability-tags span {
  padding: 9px 12px;
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: var(--radius-sm);
  font-size: 11.5px;
  font-weight: 700;
}

.capability-foot {
  border-top: 1px solid var(--border);
  margin-top: 24px;
  padding-top: 16px;
  font-size: 10.5px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ─── 12. Forms & HTMX Audit Terminal ──────────────────────────────────── */
.audit-banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 44px;
}

.audit-layout {
  display: grid;
  grid-template-columns: 1fr 0.95fr;
  gap: 60px;
  align-items: start;
}

.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.form-card h2 {
  font-size: 24px;
  margin: 0 0 6px;
  letter-spacing: -0.03em;
}

.form-intro {
  font-size: 12px;
  color: var(--muted);
  margin: 0 0 20px;
}

.form-card label:not(.consent) {
  display: block;
  font-size: 11px;
  font-weight: 800;
  margin: 14px 0 6px;
}

.form-card label > span {
  color: #e1786b;
}

.form-input,
.form-card input:not([type=checkbox]),
.form-card textarea,
.form-card select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text);
  padding: 12px 14px;
  font-size: 14px; /* Prevents iOS auto-zoom */
  transition: border-color 0.2s;
}

.form-card input:focus,
.form-card textarea:focus,
.form-card select:focus {
  border-color: var(--mint-strong);
}

.consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 10.5px;
  color: var(--muted);
  margin: 18px 0;
  line-height: 1.5;
}

.consent input {
  margin-top: 3px;
}

.form-disclaimer {
  font-size: 10px;
  color: var(--muted);
  margin-top: 14px;
  line-height: 1.6;
}

/* ─── 13. Service Details & Steps Page ─────────────────────────────────── */
.service-detail {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 28px;
  padding: 48px 0;
  border-bottom: 1px solid var(--border);
  scroll-margin-top: 100px;
}

.detail-index {
  font-size: 38px;
  font-weight: 800;
  color: var(--mint-strong);
  letter-spacing: -0.05em;
  font-family: var(--font-mono);
}

.detail-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  margin-top: 24px;
}

.detail-columns h3 {
  font-size: 13.5px;
  margin-bottom: 10px;
}

.detail-columns p, .detail-columns li {
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.9;
}

.big-step {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 24px;
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
}

.big-step > span {
  font-size: 28px;
  font-weight: 800;
  color: var(--mint-strong);
  font-family: var(--font-mono);
}

.big-step h2 {
  font-size: 24px;
  margin: 0 0 8px;
}

/* ─── 14. Interactive Cost Calculator ─────────────────────────────────── */
.calc-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: start;
}

.calc-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.calc-result-card {
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius);
  padding: 32px;
  border: 1px solid #2b3c4f;
  box-shadow: var(--shadow);
}

.calc-price-display {
  font-size: clamp(32px, 4vw, 46px);
  font-weight: 800;
  color: var(--mint);
  margin: 12px 0 20px;
  font-family: var(--font-mono);
}

.calc-meta-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid #28394e;
  font-size: 12.5px;
  color: #a8b7c5;
}

.calc-addons-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 14px;
}

.calc-addon-label {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 12px;
  cursor: pointer;
  transition: border-color 0.2s;
}

.calc-addon-label:hover {
  border-color: var(--mint-strong);
}

/* ─── 15. Case Studies & Proof Cards ───────────────────────────────────── */
.case-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  margin-bottom: 32px;
}

.case-metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 24px 0;
}

.case-metric-chip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  text-align: center;
}

.case-metric-chip strong {
  display: block;
  font-size: 24px;
  color: var(--mint-strong);
  font-family: var(--font-mono);
}

.case-metric-chip span {
  font-size: 11px;
  color: var(--muted);
}

/* ─── 16. Cookie Consent Banner ────────────────────────────────────────── */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--navy);
  color: #ffffff;
  padding: 18px 0;
  border-top: 1px solid #334458;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.2);
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.cookie-banner.show {
  transform: translateY(0);
}

.cookie-banner__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cookie-banner__text {
  font-size: 12px;
  color: #d1d5db;
  max-width: 800px;
  margin: 0;
  line-height: 1.6;
}

.cookie-banner__text a {
  text-decoration: underline;
  color: var(--mint);
}

.cookie-banner__actions {
  display: flex;
  gap: 10px;
}

/* ─── 17. Footer ───────────────────────────────────────────────────────── */
.site-footer {
  background: var(--navy);
  color: #fff;
  padding: 60px 0 24px;
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-grid > div {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 12.5px;
  color: #b8c5d2;
}

.footer-grid > div:first-child p {
  max-width: 320px;
  line-height: 1.8;
  margin-top: 10px;
}

.footer-grid strong {
  color: #fff;
  font-size: 12.5px;
  margin-bottom: 6px;
  letter-spacing: 0.05em;
}

.footer-bottom {
  border-top: 1px solid #34465a;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  color: #9caebe;
  font-size: 11px;
}

.footer-bottom a {
  text-decoration: underline;
}

/* ─── 18. Media Queries (Mobile & Tablet Responsiveness) ────────────────── */
@media (max-width: 980px) {
  .primary-nav {
    gap: 14px;
  }
  .hero-grid, .approach-grid, .proof-grid, .audit-layout, .calc-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .theme-label {
    display: none;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }
  .nav-wrap {
    min-height: 70px;
    flex-wrap: wrap;
  }
  .menu-toggle {
    display: inline-flex;
    margin-left: auto;
  }
  .primary-nav {
    display: none;
    flex-basis: 100%;
    padding: 0 0 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .primary-nav.is-open {
    display: flex;
  }
  .primary-nav > a {
    padding: 10px 0;
  }
  .theme-toggle {
    align-self: flex-start;
  }
  .theme-label {
    display: inline;
  }
  .problem-grid, .service-grid, .case-metrics-grid, .detail-columns, .calc-addons-grid {
    grid-template-columns: 1fr;
  }
  .split-heading, .audit-banner, .cta-row {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
  .footer-grid > div:first-child {
    grid-column: 1 / -1;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .service-detail, .big-step {
    grid-template-columns: 45px 1fr;
    gap: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
}