/* ============================================================
   Discom360 — Styles
   Two-tone: White/Black (toggleable) + Accent #78dade
   ============================================================ */

/* ---- CSS Custom Properties (Light theme - default) ---- */
:root {
  --bg:       #ffffff;
  --fg:       #000000;
  --fg-muted: rgba(0, 0, 0, 0.55);
  --accent:   #78dade;
  --accent-t: rgba(120, 218, 222, 0.12);
  --border:   rgba(0, 0, 0, 0.10);
  --card-bg:  #ffffff;
  --footer-from: #ffffff;
}

/* ---- Dark theme overrides ---- */
[data-theme="dark"] {
  --bg:       #000000;
  --fg:       #ffffff;
  --fg-muted: rgba(255, 255, 255, 0.55);
  --accent:   #78dade;
  --accent-t: rgba(120, 218, 222, 0.10);
  --border:   rgba(255, 255, 255, 0.12);
  --card-bg:  #000000;
  --footer-from: #000000;
}

/* ---- Reset & base ---- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  transition: background-color 0.35s ease, color 0.35s ease;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

img, svg {
  display: block;
  max-width: 100%;
}

/* ---- Utility ---- */
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-heading {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 56px;
  letter-spacing: -0.02em;
}

/* ---- Sub-page content wrapper ---- */
.page-content {
  padding-top: 120px;
  padding-bottom: 80px;
  min-height: 60vh;
}

.page-content .page-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.page-content .page-meta {
  font-size: 0.88rem;
  color: var(--fg-muted);
  margin-bottom: 40px;
}

.page-content .page-body {
  max-width: 760px;
}

.page-content .page-body h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-top: 48px;
  margin-bottom: 16px;
  letter-spacing: -0.015em;
}

.page-content .page-body h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 12px;
}

.page-content .page-body p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--fg-muted);
  margin-bottom: 20px;
}

.page-content .page-body ul,
.page-content .page-body ol {
  padding-left: 24px;
  margin-bottom: 20px;
}

.page-content .page-body li {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--fg-muted);
  margin-bottom: 8px;
}

.page-content .page-body a {
  color: var(--accent);
  text-decoration: underline;
}

.page-content .page-body a:hover {
  opacity: 0.8;
}

.page-content .page-body strong {
  color: var(--fg);
  font-weight: 600;
}

.page-content .page-body blockquote {
  border-left: 3px solid var(--accent);
  padding: 16px 20px;
  margin: 24px 0;
  background: var(--accent-t);
  border-radius: 0 10px 10px 0;
}

.page-content .page-body blockquote p {
  margin-bottom: 0;
  color: var(--fg);
}

/* Contact form */
.contact-card {
  border: 1.5px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  margin-top: 32px;
  transition: border-color 0.35s ease;
}

.contact-card dt {
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
  color: var(--fg-muted);
}

.contact-card dd {
  margin-bottom: 24px;
  font-size: 1rem;
}

.contact-card dd:last-child {
  margin-bottom: 0;
}

.contact-card a {
  color: var(--accent);
  text-decoration: underline;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  transition: background-color 0.35s ease, border-color 0.35s ease;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 24px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo .logo-mark {
  height: 2rem;
  width: auto;
  transition: filter 0.35s ease;
}

@media (max-width: 600px) {
  .logo .logo-mark {
    height: 2.25rem;
  }
}

/* Theme-aware logo visibility */
[data-theme="light"] .logo .logo-mark--dark  { display: none !important; }
[data-theme="light"] .logo .logo-mark--light { display: block; }
[data-theme="dark"]  .logo .logo-mark--light { display: none !important; }
[data-theme="dark"]  .logo .logo-mark--dark  { display: block; }

/* Theme-aware logo shadow */
[data-theme="light"] .logo .logo-mark {
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.25));
}
[data-theme="dark"] .logo .logo-mark {
  filter: drop-shadow(0 2px 4px rgba(255, 255, 255, 0.3));
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.logo-accent {
  color: var(--accent);
}

/* Theme toggle */
.theme-toggle {
  position: relative;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  background: none;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  color: var(--fg);
  transition: border-color 0.25s ease, color 0.25s ease, background-color 0.25s ease;
}

.theme-toggle:hover {
  border-color: var(--accent);
  background: var(--accent-t);
}

.theme-toggle svg {
  position: absolute;
  transition: opacity 0.25s ease, transform 0.35s ease;
}

/* light mode: show moon, hide sun */
[data-theme="light"] .icon-sun  { opacity: 0; transform: rotate(-90deg) scale(0.6); }
[data-theme="light"] .icon-moon { opacity: 1; transform: rotate(0) scale(1); }

/* dark mode: show sun, hide moon */
[data-theme="dark"] .icon-sun  { opacity: 1; transform: rotate(0) scale(1); }
[data-theme="dark"] .icon-moon { opacity: 0; transform: rotate(90deg) scale(0.6); }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-block;
  font-family: inherit;
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 36px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
  text-align: center;
}

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

.btn:active {
  transform: translateY(0);
}

/* Primary CTA — solid accent */
.btn-primary {
  background-color: var(--accent);
  color: #000000;
}

.btn-primary:hover {
  box-shadow: 0 6px 24px rgba(120, 218, 222, 0.35);
}

/* Secondary CTA — outlined accent */
.btn-secondary {
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
}

.btn-secondary:hover {
  background: var(--accent);
  color: #000000;
  box-shadow: 0 6px 24px rgba(120, 218, 222, 0.35);
}

/* ============================================================
   SECTION 1 — HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 860px;
}

.hero-title {
  font-size: clamp(2rem, 5.5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.035em;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--fg-muted);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

/* Hero dashboard image */
.hero-image-wrap {
  margin-top: 48px;
  position: relative;
  z-index: 3;
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}

.hero-image {
  width: 100%;
  border-radius: 14px;
  border: 2px solid var(--border);
  transition: opacity 0.35s ease, box-shadow 0.35s ease;
}

/* Theme-aware shadow: black in light, white in dark */
[data-theme="light"] .hero-image {
  box-shadow: 0 16px 56px rgba(0, 0, 0, 0.32), 0 6px 20px rgba(0, 0, 0, 0.16);
}
[data-theme="dark"] .hero-image {
  box-shadow: 0 16px 56px rgba(255, 255, 255, 0.25), 0 6px 20px rgba(255, 255, 255, 0.12);
}

/* Show correct image per theme */
[data-theme="light"] .hero-image--dark  { display: none; }
[data-theme="light"] .hero-image--light { display: block; }
[data-theme="dark"]  .hero-image--light { display: none; }
[data-theme="dark"]  .hero-image--dark  { display: block; }

/* Geometric decorations */
.hero-geo {
  position: absolute;
  border: 2px solid var(--accent);
  opacity: 0.12;
  border-radius: 4px;
  pointer-events: none;
}

.hero-geo--1 {
  width: 220px;
  height: 220px;
  top: 8%;
  left: -4%;
  transform: rotate(15deg);
}

.hero-geo--2 {
  width: 140px;
  height: 140px;
  bottom: 12%;
  right: -2%;
  transform: rotate(-25deg);
  border-radius: 50%;
}

.hero-geo--3 {
  width: 80px;
  height: 80px;
  top: 30%;
  right: 10%;
  transform: rotate(45deg);
}

/* ============================================================
   SECTION 2 — SOCIAL PROOF
   ============================================================ */
.social-proof {
  padding: 48px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.social-proof-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.social-proof-text {
  font-size: 0.9rem;
  color: var(--fg-muted);
  text-align: center;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  font-weight: 500;
}

.logo-row {
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
  justify-content: center;
}

.client-logo {
  width: auto;
  height: 40px;
  max-width: 160px;
  object-fit: contain;
  opacity: 0.7;
  transition: opacity 0.25s ease;
}

.client-logo:hover {
  opacity: 1;
}

/* ============================================================
   SECTION 3 — ECOSYSTEM (Features-to-Benefits)
   ============================================================ */
.ecosystem {
  padding: 100px 0;
}

.eco-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}

/* Connector lines — visually link cards */
.eco-connector {
  position: absolute;
  background: var(--accent);
  z-index: 0;
  border-radius: 2px;
}

/* Horizontal connectors */
.eco-connector--h1 {
  height: 2px;
  width: calc(33.333% - 32px);
  top: 50%;
  left: calc(33.333% + 0px);
  opacity: 0.18;
}

.eco-connector--h2 {
  height: 2px;
  width: calc(33.333% - 32px);
  top: 50%;
  left: calc(66.666% + 0px);
  opacity: 0.18;
}

/* Vertical connectors (visible on mobile stacked view) */
.eco-connector--v1,
.eco-connector--v2 {
  display: none;
}

/* Card */
.eco-card {
  position: relative;
  z-index: 1;
  border: 1.5px solid var(--border);
  border-radius: 16px;
  padding: 40px 32px;
  background: var(--card-bg);
  transition: border-color 0.3s ease, box-shadow 0.3s ease, background-color 0.35s ease;
}

.eco-card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 32px rgba(120, 218, 222, 0.12);
}

.eco-card-icon {
  margin-bottom: 20px;
}

.eco-card-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.eco-card-points {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.eco-card-points li {
  position: relative;
  padding-left: 20px;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--fg-muted);
}

.eco-card-points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border: 2px solid var(--accent);
  border-radius: 2px;
}

/* ============================================================
   COMPARISON TABLE
   ============================================================ */
.comparison {
  padding: 100px 0;
}

.compare-table {
  border: 1.5px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color 0.35s ease;
}

.compare-row {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  border-bottom: 1px solid var(--border);
  transition: background-color 0.2s ease;
}

.compare-row:last-child {
  border-bottom: none;
}

.compare-row--header {
  background: var(--accent-t);
}

.compare-row:not(.compare-row--header):hover {
  background: var(--accent-t);
}

.compare-cell {
  padding: 16px 20px;
  font-size: 0.92rem;
  line-height: 1.5;
  display: flex;
  align-items: center;
  gap: 8px;
}

.compare-cell--feature {
  font-weight: 600;
}

.compare-row--header .compare-cell {
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.compare-cell--competitor {
  border-left: 1px solid var(--border);
  color: var(--fg-muted);
}

.compare-cell--d360 {
  border-left: 1px solid var(--border);
}

.compare-icon {
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.compare-icon--yes {
  color: var(--accent);
}

.compare-icon--no {
  opacity: 0.4;
}

/* ============================================================
   SECTION 4 — CLOSING CTA
   ============================================================ */
.closing-cta {
  padding: 80px 0;
  margin: 0 24px;
  border: 2px solid var(--accent);
  border-radius: 20px;
  background: var(--accent-t);
  text-align: center;
}

.closing-cta-inner {
  max-width: 600px;
}

.closing-cta-headline {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.closing-cta-sub {
  font-size: 1.05rem;
  color: var(--fg-muted);
  margin-bottom: 32px;
}

.closing-cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.closing-cta-note {
  font-size: 0.85rem;
  color: var(--fg-muted);
}

/* ============================================================
   SECTION 5 — FOOTER
   ============================================================ */
.site-footer {
  position: relative;
  margin-top: 100px;
  padding: 64px 0 40px;
  color: #000000;
  overflow: hidden;
  z-index: 0;
}

/* Gradient layers for smooth theme transition */
.site-footer::before,
.site-footer::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  transition: opacity 0.35s ease;
}

.site-footer::before {
  background: linear-gradient(180deg, #ffffff 0%, #78dade 100%);
}

.site-footer::after {
  background: linear-gradient(180deg, #000000 0%, #78dade 100%);
}

[data-theme="light"] .site-footer::before { opacity: 1; }
[data-theme="light"] .site-footer::after  { opacity: 0; }
[data-theme="dark"]  .site-footer::before { opacity: 0; }
[data-theme="dark"]  .site-footer::after  { opacity: 1; }

/* Override text color in footer to ensure readability over gradient */
.site-footer a,
.site-footer p,
.site-footer h4 {
  transition: color 0.35s ease;
}

/* Text always black for readability on accent gradient */
[data-theme="light"] .site-footer {
  color: #000000;
}

[data-theme="dark"] .site-footer {
  color: #000000;
}

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

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-tagline {
  font-size: 0.82rem;
  opacity: 0.7;
}

.footer-company-link {
  text-decoration: underline;
  opacity: 1;
}

.footer-company-link:hover {
  color: var(--accent);
}

.footer-col-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  opacity: 0.7;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 0.9rem;
  opacity: 0.85;
  transition: opacity 0.2s ease;
}

.footer-col a:hover {
  opacity: 1;
  text-decoration: underline;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .eco-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  /* Hide horizontal connectors, show vertical */
  .eco-connector--h1,
  .eco-connector--h2 {
    display: none;
  }

  .compare-row {
    grid-template-columns: 1fr;
  }

  .compare-cell--competitor,
  .compare-cell--d360 {
    border-left: none;
    border-top: 1px solid var(--border);
  }

  .compare-row--header {
    display: none;
  }

  .compare-cell--feature {
    background: var(--accent-t);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 10px 20px;
  }

  .compare-cell--competitor::before {
    content: 'Competitors: ';
    font-weight: 600;
    opacity: 0.5;
  }

  .compare-cell--d360::before {
    content: 'Discom360: ';
    font-weight: 600;
    color: var(--accent);
  }

  .eco-connector--v1,
  .eco-connector--v2 {
    display: block;
    width: 2px;
    height: 24px;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.18;
  }

  .eco-connector--v1 {
    top: calc(33.333% - 12px);
  }

  .eco-connector--v2 {
    top: calc(66.666% - 12px);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 600px) {
  .hero {
    padding: 100px 0 60px;
    min-height: auto;
  }

  .hero-title {
    font-size: 1.75rem;
  }

  .hero-image-wrap {
    margin-top: 32px;
  }

  .hero-image {
    border-radius: 10px;
  }

  .hero-geo--1 {
    width: 140px;
    height: 140px;
  }

  .hero-geo--2 {
    width: 80px;
    height: 80px;
  }

  .hero-geo--3 {
    display: none;
  }

  .section-heading {
    margin-bottom: 36px;
  }

  .ecosystem {
    padding: 60px 0;
  }

  .eco-card {
    padding: 28px 22px;
  }

  .closing-cta {
    margin: 0 12px;
    padding: 48px 16px;
    border-radius: 14px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .social-proof-inner {
    gap: 24px;
  }

  .logo-row {
    gap: 24px;
  }

  .btn {
    padding: 12px 28px;
    font-size: 0.95rem;
  }
}

/* ---- Focus visible ring for accessibility ---- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---- Smooth fade-in on load ---- */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-title,
.hero-sub,
.hero .btn {
  animation: fadeUp 0.7s ease both;
}

.hero-sub { animation-delay: 0.12s; }
.hero .btn { animation-delay: 0.24s; }