/* ============================================================
   THEME SYSTEM — All visual properties flow from these variables.
   To create a new theme, duplicate the [data-theme="default"] block,
   rename it, and change the values. Switch themes by setting
   data-theme on <html>.
   ============================================================ */

/* ---------- DEFAULT THEME ---------- */
[data-theme="default"] {
  /* Surface */
  --color-bg:             #0a0a0a;
  --color-bg-alt:         #111111;
  --color-bg-elevated:    #1a1a1a;
  --color-surface-border: #222222;

  /* Text */
  --color-text:           #f0f0f0;
  --color-text-muted:     #888888;
  --color-text-accent:    #a8b5ff;

  /* Accent */
  --color-accent:         #6c7aff;
  --color-accent-hover:   #8b96ff;
  --color-accent-subtle:  rgba(108, 122, 255, 0.1);

  /* Typography */
  --font-sans:            'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:            'JetBrains Mono', 'Fira Code', monospace;

  /* Sizing */
  --container-max:        1200px;
  --section-pad:          120px;
  --radius-sm:            6px;
  --radius-md:            12px;
  --radius-lg:            20px;

  /* Transitions */
  --transition-fast:      0.2s ease;
  --transition-med:       0.4s ease;
  --transition-slow:      0.8s cubic-bezier(0.16, 1, 0.3, 1);

  /* Header */
  --header-height:        72px;
  --header-bg:            rgba(10, 10, 10, 0.85);

  /* Shadows */
  --shadow-sm:            0 1px 3px rgba(0,0,0,0.3);
  --shadow-md:            0 4px 20px rgba(0,0,0,0.4);
}

/* ---------- EXAMPLE LIGHT THEME (swap in to test) ---------- */
[data-theme="light"] {
  --color-bg:             #ffffff;
  --color-bg-alt:         #f5f5f5;
  --color-bg-elevated:    #eaeaea;
  --color-surface-border: #dddddd;
  --color-text:           #111111;
  --color-text-muted:     #666666;
  --color-text-accent:    #4a56c7;
  --color-accent:         #4a56c7;
  --color-accent-hover:   #5d6ae0;
  --color-accent-subtle:  rgba(74, 86, 199, 0.08);
  --font-sans:            'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:            'JetBrains Mono', 'Fira Code', monospace;
  --container-max:        1200px;
  --section-pad:          120px;
  --radius-sm:            6px;
  --radius-md:            12px;
  --radius-lg:            20px;
  --transition-fast:      0.2s ease;
  --transition-med:       0.4s ease;
  --transition-slow:      0.8s cubic-bezier(0.16, 1, 0.3, 1);
  --header-height:        72px;
  --header-bg:            rgba(255, 255, 255, 0.9);
  --shadow-sm:            0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:            0 4px 20px rgba(0,0,0,0.1);
}

/* ---------- ECO PULSE — Organic Green Theme ---------- */
[data-theme="eco-pulse"] {
  --color-bg:             #f6f9f2;
  --color-bg-alt:         #edf3e5;
  --color-bg-elevated:    #dfe9d4;
  --color-surface-border: #c5d6b3;
  --color-text:           #1a2e0a;
  --color-text-muted:     #5a7247;
  --color-text-accent:    #2d8a3e;
  --color-accent:         #2d8a3e;
  --color-accent-hover:   #3aad4e;
  --color-accent-subtle:  rgba(45, 138, 62, 0.08);
  --color-eco-warm:       #b5890a;
  --font-sans:            'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:            'JetBrains Mono', 'Fira Code', monospace;
  --container-max:        1200px;
  --section-pad:          120px;
  --radius-sm:            10px;
  --radius-md:            16px;
  --radius-lg:            24px;
  --transition-fast:      0.2s ease;
  --transition-med:       0.4s ease;
  --transition-slow:      0.8s cubic-bezier(0.16, 1, 0.3, 1);
  --header-height:        72px;
  --header-bg:            rgba(246, 249, 242, 0.92);
  --shadow-sm:            0 1px 4px rgba(30, 60, 10, 0.06);
  --shadow-md:            0 6px 24px rgba(30, 60, 10, 0.1);
}

/* ---------- MURDER MYSTERY — Dark Crimson Noir ---------- */
[data-theme="murder-mystery"] {
  --color-bg:             #0e0708;
  --color-bg-alt:         #140a0c;
  --color-bg-elevated:    #1c1012;
  --color-surface-border: #2e1a1e;
  --color-text:           #e8dcd0;
  --color-text-muted:     #8a7068;
  --color-text-accent:    #c4364a;
  --color-accent:         #c4364a;
  --color-accent-hover:   #e04458;
  --color-accent-subtle:  rgba(196, 54, 74, 0.08);
  --color-mm-gold:        #c9a84c;
  --color-mm-gold-dim:    rgba(201, 168, 76, 0.12);
  --font-sans:            'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:            'JetBrains Mono', 'Fira Code', monospace;
  --container-max:        1200px;
  --section-pad:          120px;
  --radius-sm:            2px;
  --radius-md:            4px;
  --radius-lg:            6px;
  --transition-fast:      0.2s ease;
  --transition-med:       0.4s ease;
  --transition-slow:      0.8s cubic-bezier(0.16, 1, 0.3, 1);
  --header-height:        72px;
  --header-bg:            rgba(14, 7, 8, 0.92);
  --shadow-sm:            0 1px 6px rgba(196, 54, 74, 0.1);
  --shadow-md:            0 4px 24px rgba(196, 54, 74, 0.15);
}

/* ---------- NEON NOIR — Cyberpunk Theme ---------- */
[data-theme="neon-noir"] {
  /* Surface — deep blue-blacks like wet asphalt at night */
  --color-bg:             #05050f;
  --color-bg-alt:         #0a0a1a;
  --color-bg-elevated:    #0f0f24;
  --color-surface-border: #1a1a3a;

  /* Text — cool white with pink tint */
  --color-text:           #e8e0f0;
  --color-text-muted:     #6a6a8a;
  --color-text-accent:    #ff2a6d;

  /* Accent — hot pink / magenta neon */
  --color-accent:         #ff2a6d;
  --color-accent-hover:   #ff5a8a;
  --color-accent-subtle:  rgba(255, 42, 109, 0.08);

  /* Secondary neon — electric cyan (used in theme-specific rules) */
  --color-neon-cyan:      #05d9e8;
  --color-neon-cyan-dim:  rgba(5, 217, 232, 0.15);
  --color-neon-glow:      rgba(255, 42, 109, 0.4);
  --color-neon-glow-cyan: rgba(5, 217, 232, 0.3);

  /* Typography */
  --font-sans:            'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:            'JetBrains Mono', 'Fira Code', monospace;

  /* Sizing — slightly more aggressive radius for that cut-corner cyber feel */
  --container-max:        1200px;
  --section-pad:          120px;
  --radius-sm:            2px;
  --radius-md:            4px;
  --radius-lg:            8px;

  /* Transitions */
  --transition-fast:      0.2s ease;
  --transition-med:       0.4s ease;
  --transition-slow:      0.8s cubic-bezier(0.16, 1, 0.3, 1);

  /* Header */
  --header-height:        72px;
  --header-bg:            rgba(5, 5, 15, 0.9);

  /* Shadows — neon glows instead of soft drops */
  --shadow-sm:            0 0 8px rgba(255, 42, 109, 0.15);
  --shadow-md:            0 0 30px rgba(255, 42, 109, 0.2);
}

/* ---------- PAYMESH — Clean Fintech Light ---------- */
[data-theme="paymesh"] {
  --color-bg:             #ffffff;
  --color-bg-alt:         #f8f9fc;
  --color-bg-elevated:    #eef1f6;
  --color-surface-border: #d8dde6;
  --color-text:           #0f1729;
  --color-text-muted:     #5a6478;
  --color-text-accent:    #1a3a8f;
  --color-accent:         #1a3a8f;
  --color-accent-hover:   #2850b8;
  --color-accent-subtle:  rgba(26,58,143,0.06);
  --font-sans:            'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:            'JetBrains Mono', 'Fira Code', monospace;
  --container-max:        1200px;
  --section-pad:          120px;
  --radius-sm:            8px;
  --radius-md:            12px;
  --radius-lg:            20px;
  --transition-fast:      0.2s ease;
  --transition-med:       0.4s ease;
  --transition-slow:      0.8s cubic-bezier(0.16, 1, 0.3, 1);
  --header-height:        72px;
  --header-bg:            rgba(255, 255, 255, 0.95);
  --shadow-sm:            0 1px 3px rgba(0,0,0,0.06);
  --shadow-md:            0 4px 20px rgba(0,0,0,0.08);
}

/* ---------- CENTER SC — Institutional Blue ---------- */
[data-theme="center-sc"] {
  --color-bg:             #fafbfd;
  --color-bg-alt:         #f0f4f8;
  --color-bg-elevated:    #e4eaf2;
  --color-surface-border: #c8d4e0;
  --color-text:           #1a2332;
  --color-text-muted:     #5c6b7d;
  --color-text-accent:    #116dff;
  --color-accent:         #116dff;
  --color-accent-hover:   #3385ff;
  --color-accent-subtle:  rgba(17,109,255,0.06);
  --font-sans:            'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:            'JetBrains Mono', 'Fira Code', monospace;
  --container-max:        1200px;
  --section-pad:          120px;
  --radius-sm:            8px;
  --radius-md:            14px;
  --radius-lg:            22px;
  --transition-fast:      0.2s ease;
  --transition-med:       0.4s ease;
  --transition-slow:      0.8s cubic-bezier(0.16, 1, 0.3, 1);
  --header-height:        72px;
  --header-bg:            rgba(250, 251, 253, 0.95);
  --shadow-sm:            0 1px 4px rgba(0,0,0,0.05);
  --shadow-md:            0 6px 24px rgba(0,0,0,0.07);
}

/* ---------- CHESS — Royal Strategic Theme ---------- */
[data-theme="chess"] {
  --color-bg:             #0c0c0c;
  --color-bg-alt:         #141410;
  --color-bg-elevated:    #1e1e18;
  --color-surface-border: #2e2e24;
  --color-text:           #f0ead6;
  --color-text-muted:     #8a8272;
  --color-text-accent:    #d4a843;
  --color-accent:         #d4a843;
  --color-accent-hover:   #e6bc5a;
  --color-accent-subtle:  rgba(212, 168, 67, 0.08);
  --color-chess-gold:     #d4a843;
  --color-chess-gold-dim: rgba(212, 168, 67, 0.15);
  --color-chess-ivory:    #f0ead6;
  --font-sans:            'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:            'JetBrains Mono', 'Fira Code', monospace;
  --container-max:        1200px;
  --section-pad:          120px;
  --radius-sm:            2px;
  --radius-md:            4px;
  --radius-lg:            6px;
  --transition-fast:      0.2s ease;
  --transition-med:       0.4s ease;
  --transition-slow:      0.8s cubic-bezier(0.16, 1, 0.3, 1);
  --header-height:        72px;
  --header-bg:            rgba(12, 12, 12, 0.95);
  --shadow-sm:            0 1px 6px rgba(212, 168, 67, 0.08);
  --shadow-md:            0 4px 24px rgba(212, 168, 67, 0.12);
}


/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background var(--transition-med), color var(--transition-med);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, textarea { font-family: inherit; }

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}


/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: var(--header-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-surface-border);
  transition: background var(--transition-med), border-color var(--transition-med);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}
.logo-mark {
  color: var(--color-accent);
  font-size: 1.3rem;
  transition: color var(--transition-fast);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
  letter-spacing: 0.01em;
}
.nav-link:hover { color: var(--color-text); }
.nav-link--cta {
  background: var(--color-accent);
  color: #fff !important;
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.nav-link--cta:hover { background: var(--color-accent-hover); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition-fast);
}


/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  border: none;
  transition: background var(--transition-fast), color var(--transition-fast),
              box-shadow var(--transition-fast), transform var(--transition-fast);
}
.btn:hover { transform: translateY(-1px); }
.btn--primary {
  background: var(--color-accent);
  color: #fff;
}
.btn--primary:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 4px 24px rgba(108, 122, 255, 0.3);
}
.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-surface-border);
}
.btn--ghost:hover {
  border-color: var(--color-text-muted);
  background: var(--color-accent-subtle);
}
.btn--full { width: 100%; }


/* ============================================================
   SECTIONS — shared
   ============================================================ */
.section {
  padding: var(--section-pad) 0;
  transition: background var(--transition-med);
}
.section-label {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 48px;
}


/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding-top: calc(var(--header-height) + var(--section-pad));
  min-height: 100vh;
  display: flex;
  align-items: center;
}
.hero-label {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: 24px;
}
.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.1;
  margin-bottom: 24px;
}
.hero-title em {
  font-style: normal;
  color: var(--color-accent);
}
.hero-sub {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 580px;
  line-height: 1.7;
  margin-bottom: 40px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}


/* ============================================================
   RIBBON
   ============================================================ */
.ribbon {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-surface-border);
  border-bottom: 1px solid var(--color-surface-border);
  padding: 48px 0;
  transition: background var(--transition-med), border-color var(--transition-med);
}
.ribbon-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 32px;
}
.stat { text-align: center; flex: 1; min-width: 140px; }
.stat-value {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.stat-label {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}


/* ============================================================
   SERVICES
   ============================================================ */
.services { background: var(--color-bg); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.service-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-md);
  padding: 36px 32px;
  transition: border-color var(--transition-fast), transform var(--transition-fast),
              background var(--transition-med);
}
.service-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
}
.service-icon {
  display: block;
  font-size: 1.75rem;
  margin-bottom: 16px;
  color: var(--color-accent);
}
.service-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.service-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}


/* ============================================================
   WORK / PORTFOLIO
   ============================================================ */
.work { background: var(--color-bg-alt); }

.project-list { margin-top: 16px; }

.project-item {
  display: block;
  border-bottom: 1px solid var(--color-surface-border);
  padding: 56px 0;
  transition: background var(--transition-fast);
}
.project-item:hover { background: var(--color-accent-subtle); }

.project-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.project-client {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 8px;
}
.project-name {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  line-height: 1.25;
}
.project-desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 16px;
}
.project-tags {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

.project-visual {
  display: flex;
  justify-content: flex-end;
}
.project-placeholder {
  width: 100%;
  max-width: 480px;
  aspect-ratio: 16 / 10;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-md);
  transition: background var(--transition-med), border-color var(--transition-med);
}


/* ============================================================
   PARTNERS
   ============================================================ */
.partners { background: var(--color-bg); }

.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}
.partner-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  letter-spacing: 0.01em;
  transition: border-color var(--transition-fast), color var(--transition-fast),
              background var(--transition-med);
}
.partner-logo:hover {
  border-color: var(--color-accent);
  color: var(--color-text);
}


/* ============================================================
   ABOUT
   ============================================================ */
.about { background: var(--color-bg-alt); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-content p {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
  line-height: 1.7;
}
.about-placeholder {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-lg);
  transition: background var(--transition-med), border-color var(--transition-med);
}


/* ============================================================
   CONTACT
   ============================================================ */
.contact { background: var(--color-bg); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.contact-info p {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
}
.contact-details p {
  font-size: 0.9375rem;
  margin-bottom: 16px;
}
.contact-details strong {
  display: block;
  color: var(--color-text);
  font-weight: 600;
  margin-bottom: 2px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.form-group input,
.form-group textarea {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-size: 0.9375rem;
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition-fast), background var(--transition-med);
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
}
.form-group textarea { resize: vertical; }


/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-surface-border);
  padding: 48px 0;
  transition: background var(--transition-med), border-color var(--transition-med);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}
.footer-brand p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 8px;
}
.footer-links {
  display: flex;
  gap: 24px;
}
.footer-links a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}
.footer-links a:hover { color: var(--color-text); }


/* ============================================================
   PAGE TRANSITION OVERLAY — for theme switch / link animations
   ============================================================ */
.page-transition {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--color-accent);
  transform: scaleY(0);
  transform-origin: bottom;
  pointer-events: none;
  transition: transform 0.5s cubic-bezier(0.77, 0, 0.175, 1);
}
.page-transition.active {
  transform: scaleY(1);
  transform-origin: top;
}
.page-transition.exit {
  transform: scaleY(0);
  transform-origin: top;
}


/* ============================================================
   SCROLL REVEAL ANIMATION
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}


/* ============================================================
   NEON NOIR — Theme-specific overrides & effects
   These rules ONLY activate when [data-theme="neon-noir"] is set.
   This pattern shows how to layer theme-specific visuals on top
   of the base template without touching the base CSS.
   ============================================================ */

/* Scanline overlay on the entire page */
[data-theme="neon-noir"] body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9998;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(5, 5, 15, 0.03) 2px,
    rgba(5, 5, 15, 0.03) 4px
  );
  mix-blend-mode: multiply;
}

/* Header — neon bottom border glow */
[data-theme="neon-noir"] .site-header {
  border-bottom: 1px solid var(--color-neon-cyan);
  box-shadow: 0 1px 20px var(--color-neon-glow-cyan);
}

/* Logo gets a neon cyan mark instead of accent */
[data-theme="neon-noir"] .logo-mark {
  color: var(--color-neon-cyan);
  text-shadow: 0 0 10px var(--color-neon-glow-cyan);
}

/* Nav CTA — clipped corner cyberpunk style */
[data-theme="neon-noir"] .nav-link--cta {
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  background: var(--color-accent);
  box-shadow: 0 0 12px var(--color-neon-glow);
}

/* Hero — neon text glow on the accent word */
[data-theme="neon-noir"] .hero-title em {
  color: var(--color-neon-cyan);
  text-shadow:
    0 0 10px var(--color-neon-glow-cyan),
    0 0 40px var(--color-neon-glow-cyan);
}

/* Hero label gets a left-border accent bar */
[data-theme="neon-noir"] .hero-label {
  border-left: 3px solid var(--color-neon-cyan);
  padding-left: 12px;
  text-shadow: 0 0 8px var(--color-neon-glow);
}

/* Section labels — dual-color treatment */
[data-theme="neon-noir"] .section-label {
  color: var(--color-neon-cyan);
  text-shadow: 0 0 6px var(--color-neon-glow-cyan);
}

/* Section titles — subtle neon underline */
[data-theme="neon-noir"] .section-title {
  position: relative;
  display: inline-block;
}
[data-theme="neon-noir"] .section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-neon-cyan));
  box-shadow: 0 0 10px var(--color-neon-glow);
}

/* Buttons — neon glow on primary */
[data-theme="neon-noir"] .btn--primary {
  box-shadow: 0 0 16px var(--color-neon-glow), inset 0 0 16px rgba(255, 42, 109, 0.1);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
}
[data-theme="neon-noir"] .btn--primary:hover {
  box-shadow: 0 0 30px var(--color-neon-glow), 0 0 60px rgba(255, 42, 109, 0.15);
}
[data-theme="neon-noir"] .btn--ghost {
  border-color: var(--color-neon-cyan);
  color: var(--color-neon-cyan);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
}
[data-theme="neon-noir"] .btn--ghost:hover {
  background: var(--color-neon-cyan-dim);
  border-color: var(--color-neon-cyan);
  box-shadow: 0 0 16px var(--color-neon-glow-cyan);
}

/* Stat values — alternating neon colors */
[data-theme="neon-noir"] .stat-value {
  color: var(--color-neon-cyan);
  text-shadow: 0 0 8px var(--color-neon-glow-cyan);
}
[data-theme="neon-noir"] .stat:nth-child(even) .stat-value {
  color: var(--color-accent);
  text-shadow: 0 0 8px var(--color-neon-glow);
}

/* Ribbon — gradient border glow */
[data-theme="neon-noir"] .ribbon {
  border-top: 1px solid var(--color-accent);
  border-bottom: 1px solid var(--color-neon-cyan);
  box-shadow:
    inset 0 1px 20px rgba(255, 42, 109, 0.05),
    inset 0 -1px 20px rgba(5, 217, 232, 0.05);
}

/* Service cards — neon border glow on hover */
[data-theme="neon-noir"] .service-card {
  border-color: var(--color-surface-border);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
}
[data-theme="neon-noir"] .service-card:hover {
  border-color: var(--color-neon-cyan);
  box-shadow: 0 0 20px var(--color-neon-glow-cyan), inset 0 0 20px rgba(5, 217, 232, 0.03);
}
[data-theme="neon-noir"] .service-icon {
  color: var(--color-neon-cyan);
  text-shadow: 0 0 8px var(--color-neon-glow-cyan);
}

/* Project items — side neon accent bar on hover */
[data-theme="neon-noir"] .project-item {
  border-bottom-color: var(--color-surface-border);
  position: relative;
}
[data-theme="neon-noir"] .project-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--color-accent), var(--color-neon-cyan));
  opacity: 0;
  transition: opacity var(--transition-fast);
  box-shadow: 0 0 12px var(--color-neon-glow);
}
[data-theme="neon-noir"] .project-item:hover::before { opacity: 1; }
[data-theme="neon-noir"] .project-item:hover {
  background: rgba(255, 42, 109, 0.03);
}

/* Project placeholders — neon border glow */
[data-theme="neon-noir"] .project-placeholder {
  border-color: var(--color-surface-border);
  background:
    linear-gradient(135deg, rgba(255, 42, 109, 0.05) 0%, transparent 50%, rgba(5, 217, 232, 0.05) 100%),
    var(--color-bg-elevated);
}
[data-theme="neon-noir"] .project-item:hover .project-placeholder {
  border-color: var(--color-neon-cyan);
  box-shadow: 0 0 24px var(--color-neon-glow-cyan);
}

/* Project client name — cyan */
[data-theme="neon-noir"] .project-client {
  color: var(--color-neon-cyan);
}

/* Partner logos — alternate glow colors */
[data-theme="neon-noir"] .partner-logo {
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}
[data-theme="neon-noir"] .partner-logo:hover {
  border-color: var(--color-neon-cyan);
  color: var(--color-neon-cyan);
  box-shadow: 0 0 16px var(--color-neon-glow-cyan);
  text-shadow: 0 0 6px var(--color-neon-glow-cyan);
}

/* About placeholder — gradient neon border */
[data-theme="neon-noir"] .about-placeholder {
  border: 1px solid transparent;
  background:
    linear-gradient(var(--color-bg-elevated), var(--color-bg-elevated)) padding-box,
    linear-gradient(135deg, var(--color-accent), var(--color-neon-cyan)) border-box;
  box-shadow: 0 0 30px rgba(255, 42, 109, 0.08), 0 0 30px rgba(5, 217, 232, 0.08);
}

/* Contact form inputs — neon focus glow */
[data-theme="neon-noir"] .form-group input,
[data-theme="neon-noir"] .form-group textarea {
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}
[data-theme="neon-noir"] .form-group input:focus,
[data-theme="neon-noir"] .form-group textarea:focus {
  border-color: var(--color-neon-cyan);
  box-shadow: 0 0 12px var(--color-neon-glow-cyan), inset 0 0 12px rgba(5, 217, 232, 0.05);
}

/* Contact form submit — full neon treatment */
[data-theme="neon-noir"] .contact-form .btn--primary {
  background: linear-gradient(135deg, var(--color-accent), #d4145a);
}
[data-theme="neon-noir"] .contact-form .btn--primary:hover {
  background: linear-gradient(135deg, var(--color-accent-hover), var(--color-accent));
}

/* Footer — top border neon */
[data-theme="neon-noir"] .site-footer {
  border-top: 1px solid var(--color-accent);
  box-shadow: 0 -1px 20px var(--color-neon-glow);
}

/* Page transition overlay — gradient for neon noir */
[data-theme="neon-noir"] .page-transition {
  background: linear-gradient(135deg, var(--color-accent), var(--color-neon-cyan));
}


/* ============================================================
   ECO PULSE — Theme-specific overrides
   ============================================================ */

/* Soft leaf-vein texture overlay */
[data-theme="eco-pulse"] body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9998;
  pointer-events: none;
  background: radial-gradient(ellipse at 20% 50%, rgba(45, 138, 62, 0.03) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 80%, rgba(181, 137, 10, 0.03) 0%, transparent 50%);
}

/* Hero em — warm amber contrast */
[data-theme="eco-pulse"] .hero-title em {
  color: var(--color-eco-warm);
}

/* Section labels — earthy warm accent */
[data-theme="eco-pulse"] .section-label {
  color: var(--color-eco-warm);
}

/* Stat values — alternate green / amber */
[data-theme="eco-pulse"] .stat-value { color: var(--color-accent); }
[data-theme="eco-pulse"] .stat:nth-child(even) .stat-value { color: var(--color-eco-warm); }

/* Service cards — organic soft shadow on hover */
[data-theme="eco-pulse"] .service-card:hover {
  box-shadow: 0 8px 32px rgba(45, 138, 62, 0.12);
}

/* Project client — warm gold */
[data-theme="eco-pulse"] .project-client { color: var(--color-eco-warm); }

/* Buttons — softer pill shape via higher radius, leaf shadow */
[data-theme="eco-pulse"] .btn--primary:hover {
  box-shadow: 0 4px 24px rgba(45, 138, 62, 0.25);
}
[data-theme="eco-pulse"] .btn--ghost {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* About placeholder — organic gradient */
[data-theme="eco-pulse"] .about-placeholder {
  background: linear-gradient(160deg, rgba(45, 138, 62, 0.08) 0%, var(--color-bg-elevated) 40%, rgba(181, 137, 10, 0.06) 100%);
}

/* Project placeholders — subtle green tint */
[data-theme="eco-pulse"] .project-placeholder {
  background: linear-gradient(135deg, rgba(45, 138, 62, 0.06) 0%, var(--color-bg-elevated) 100%);
}

/* Partner logos — warm hover */
[data-theme="eco-pulse"] .partner-logo:hover {
  border-color: var(--color-eco-warm);
  color: var(--color-eco-warm);
}

/* Page transition — green */
[data-theme="eco-pulse"] .page-transition {
  background: linear-gradient(135deg, var(--color-accent), var(--color-eco-warm));
}


/* ============================================================
   MURDER MYSTERY — Theme-specific overrides
   ============================================================ */

/* Film noir vignette overlay */
[data-theme="murder-mystery"] body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9998;
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(0, 0, 0, 0.4) 100%);
}

/* Header — gold pinstripe bottom */
[data-theme="murder-mystery"] .site-header {
  border-bottom: 1px solid var(--color-mm-gold);
  box-shadow: 0 1px 12px var(--color-mm-gold-dim);
}

/* Logo — gold mark */
[data-theme="murder-mystery"] .logo-mark {
  color: var(--color-mm-gold);
}

/* Hero em — blood red emphasis */
[data-theme="murder-mystery"] .hero-title em {
  color: var(--color-accent);
  text-shadow: 0 0 30px rgba(196, 54, 74, 0.3);
}

/* Section labels — gold */
[data-theme="murder-mystery"] .section-label {
  color: var(--color-mm-gold);
}

/* Section titles — gold underline */
[data-theme="murder-mystery"] .section-title {
  position: relative;
  display: inline-block;
}
[data-theme="murder-mystery"] .section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 50px;
  height: 1px;
  background: var(--color-mm-gold);
}

/* Stat values — gold numbers */
[data-theme="murder-mystery"] .stat-value {
  color: var(--color-mm-gold);
}

/* Ribbon — crimson top, gold bottom */
[data-theme="murder-mystery"] .ribbon {
  border-top: 1px solid var(--color-accent);
  border-bottom: 1px solid var(--color-mm-gold);
}

/* Service cards — crimson glow on hover */
[data-theme="murder-mystery"] .service-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 0 20px rgba(196, 54, 74, 0.12);
}
[data-theme="murder-mystery"] .service-icon { color: var(--color-mm-gold); }

/* Buttons — sharp edges, blood red glow */
[data-theme="murder-mystery"] .btn--primary:hover {
  box-shadow: 0 4px 24px rgba(196, 54, 74, 0.3);
}
[data-theme="murder-mystery"] .btn--ghost {
  border-color: var(--color-mm-gold);
  color: var(--color-mm-gold);
}
[data-theme="murder-mystery"] .btn--ghost:hover {
  background: var(--color-mm-gold-dim);
  border-color: var(--color-mm-gold);
}

/* Project client — gold */
[data-theme="murder-mystery"] .project-client { color: var(--color-mm-gold); }

/* Project items — red side bar on hover */
[data-theme="murder-mystery"] .project-item { position: relative; }
[data-theme="murder-mystery"] .project-item::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--color-accent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}
[data-theme="murder-mystery"] .project-item:hover::before { opacity: 1; }

/* About placeholder — noir vignette */
[data-theme="murder-mystery"] .about-placeholder {
  background:
    radial-gradient(ellipse at center, var(--color-bg-elevated) 50%, rgba(196, 54, 74, 0.06) 100%);
  border-color: var(--color-mm-gold);
}

/* Partner logos — gold hover */
[data-theme="murder-mystery"] .partner-logo:hover {
  border-color: var(--color-mm-gold);
  color: var(--color-mm-gold);
}

/* Contact inputs — crimson focus */
[data-theme="murder-mystery"] .form-group input:focus,
[data-theme="murder-mystery"] .form-group textarea:focus {
  border-color: var(--color-mm-gold);
  box-shadow: 0 0 8px var(--color-mm-gold-dim);
}

/* Footer — gold top border */
[data-theme="murder-mystery"] .site-footer {
  border-top: 1px solid var(--color-mm-gold);
}

/* Page transition — deep crimson */
[data-theme="murder-mystery"] .page-transition {
  background: linear-gradient(135deg, #1c1012, var(--color-accent));
}


/* ============================================================
   THEME SWITCHER — floating panel
   ============================================================ */
.theme-switcher {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9990;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.theme-switcher-toggle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--color-surface-border);
  background: var(--color-bg-elevated);
  color: var(--color-text);
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast), border-color var(--transition-fast),
              box-shadow var(--transition-fast), transform var(--transition-fast);
  box-shadow: var(--shadow-md);
}
.theme-switcher-toggle:hover {
  border-color: var(--color-accent);
  transform: scale(1.08);
}
[data-theme="neon-noir"] .theme-switcher-toggle {
  box-shadow: 0 0 16px var(--color-neon-glow);
  border-color: var(--color-accent);
}

.theme-switcher-panel {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-md);
  padding: 12px;
  box-shadow: var(--shadow-md);
  min-width: 160px;
  transition: background var(--transition-med), border-color var(--transition-med);
}
.theme-switcher-panel.open { display: flex; }

[data-theme="neon-noir"] .theme-switcher-panel {
  border-color: var(--color-accent);
  box-shadow: 0 0 24px var(--color-neon-glow);
}

.theme-switcher-panel button {
  background: none;
  border: 1px solid transparent;
  color: var(--color-text-muted);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: background var(--transition-fast), color var(--transition-fast),
              border-color var(--transition-fast);
}
.theme-switcher-panel button:hover {
  background: var(--color-accent-subtle);
  color: var(--color-text);
  border-color: var(--color-surface-border);
}
.theme-switcher-panel button.active {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background: var(--color-accent-subtle);
  font-weight: 600;
}

.theme-swatch {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.15);
  flex-shrink: 0;
}
.theme-swatch--default        { background: #6c7aff; }
.theme-swatch--light          { background: linear-gradient(135deg, #f5f5f5 50%, #4a56c7 50%); }
.theme-swatch--neon-noir      { background: linear-gradient(135deg, #ff2a6d 50%, #05d9e8 50%); }
.theme-swatch--eco-pulse      { background: linear-gradient(135deg, #2d8a3e 50%, #b5890a 50%); }
.theme-swatch--murder-mystery { background: linear-gradient(135deg, #c4364a 50%, #c9a84c 50%); }
.theme-swatch--chess          { background: linear-gradient(135deg, #0c0c0c 50%, #d4a843 50%); }
.theme-swatch--paymesh        { background: linear-gradient(135deg, #fff 50%, #1a3a8f 50%); }
.theme-swatch--center-sc      { background: linear-gradient(135deg, #fafbfd 50%, #116dff 50%); }


/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  :root { --section-pad: 80px; }

  .main-nav {
    position: fixed;
    top: 0; right: 0; bottom: 0;
    width: 280px;
    background: var(--color-bg);
    flex-direction: column;
    padding: 100px 32px 32px;
    gap: 24px;
    transform: translateX(100%);
    transition: transform var(--transition-med);
    border-left: 1px solid var(--color-surface-border);
    z-index: 999;
  }
  .main-nav.open { transform: translateX(0); }

  .nav-toggle { display: flex; z-index: 1001; }

  .project-inner,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .project-visual { justify-content: flex-start; }
}

@media (max-width: 600px) {
  :root { --section-pad: 56px; }

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

  .hero-title { font-size: clamp(2rem, 8vw, 3rem); }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
}


/* ============================================================
   CHESS — Theme-specific overrides
   ============================================================ */

/* Subtle checkered pattern overlay */
[data-theme="chess"] body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9998;
  pointer-events: none;
  opacity: 0.025;
  background:
    linear-gradient(45deg, #d4a843 25%, transparent 25%),
    linear-gradient(-45deg, #d4a843 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #d4a843 75%),
    linear-gradient(-45deg, transparent 75%, #d4a843 75%);
  background-size: 60px 60px;
  background-position: 0 0, 0 30px, 30px -30px, -30px 0;
}

[data-theme="chess"] .site-header {
  border-bottom: 1px solid var(--color-chess-gold);
  box-shadow: 0 1px 12px var(--color-chess-gold-dim);
}
[data-theme="chess"] .logo-mark {
  color: var(--color-chess-gold);
}
[data-theme="chess"] .section-label {
  color: var(--color-chess-gold);
  letter-spacing: 0.2em;
}
[data-theme="chess"] .section-title {
  position: relative;
  display: inline-block;
}
[data-theme="chess"] .section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 50px;
  height: 2px;
  background: var(--color-chess-gold);
}
[data-theme="chess"] .hero-title em {
  color: var(--color-chess-gold);
  text-shadow: 0 0 40px var(--color-chess-gold-dim);
}
[data-theme="chess"] .btn--primary:hover {
  box-shadow: 0 4px 24px var(--color-chess-gold-dim);
}
[data-theme="chess"] .btn--ghost {
  border-color: var(--color-chess-gold);
  color: var(--color-chess-gold);
}
[data-theme="chess"] .site-footer {
  border-top: 1px solid var(--color-chess-gold);
}
[data-theme="chess"] .form-group input:focus,
[data-theme="chess"] .form-group textarea:focus {
  border-color: var(--color-chess-gold);
  box-shadow: 0 0 8px var(--color-chess-gold-dim);
}
[data-theme="chess"] .page-transition {
  background: linear-gradient(135deg, #0c0c0c, var(--color-chess-gold));
}


/* ============================================================
   SMITH GRUPPE — Partner Card
   ============================================================ */
.sg-partner {
  display: flex;
  align-items: center;
  gap: 48px;
  padding: 48px;
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-alt);
  transition: border-color var(--transition-med),
              background var(--transition-med),
              box-shadow var(--transition-med);
  max-width: 800px;
  margin: 48px auto 0;
}
.sg-partner:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.sg-logo-mark {
  flex-shrink: 0;
  width: 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: Georgia, 'Times New Roman', serif;
  color: var(--color-text);
  transition: color var(--transition-med),
              filter var(--transition-med);
}
.sg-crown {
  font-size: 2rem;
  color: #d4a843;
  line-height: 1;
  margin-bottom: -8px;
}
.sg-letters {
  font-size: 4.5rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -4px;
}

[data-theme="chess"] .sg-logo-mark {
  color: var(--color-chess-gold);
  filter: drop-shadow(0 0 16px var(--color-chess-gold-dim));
}
[data-theme="chess"] .sg-partner {
  border-color: var(--color-chess-gold);
  box-shadow: 0 0 24px var(--color-chess-gold-dim);
}

.sg-partner-info h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}
.sg-partner-info p {
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}

.sg-expand-btn {
  background: none;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: background var(--transition-fast),
              color var(--transition-fast),
              box-shadow var(--transition-fast),
              transform var(--transition-fast);
}
.sg-expand-btn:hover {
  background: var(--color-accent);
  color: var(--color-bg);
  box-shadow: 0 0 20px var(--color-accent-subtle);
  transform: translateX(4px);
}


/* ============================================================
   SMITH GRUPPE — Expanded Deep Dive
   ============================================================ */
.sg-expanded {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.6s ease 0.2s,
              padding 0.6s ease;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
}
.sg-expanded.open {
  max-height: 4000px;
  opacity: 1;
  padding-top: var(--section-pad) !important;
  padding-bottom: var(--section-pad) !important;
}

.sg-expanded-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.sg-hero {
  text-align: center;
  margin-bottom: 64px;
}
.sg-hero-logo {
  font-family: Georgia, 'Times New Roman', serif;
  margin-bottom: 16px;
}
.sg-hero-logo .sg-crown {
  font-size: 3rem;
  display: block;
  margin-bottom: -12px;
}
.sg-hero-logo .sg-letters {
  font-size: 7rem;
  letter-spacing: -6px;
  display: block;
  line-height: 1;
  color: var(--color-accent);
}
.sg-motto {
  font-size: 0.8125rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-top: 16px;
}

.sg-tagline {
  font-size: 1.75rem;
  font-weight: 300;
  color: var(--color-text);
  text-align: center;
  margin-bottom: 64px;
  line-height: 1.5;
}
.sg-tagline strong {
  color: var(--color-accent);
  font-weight: 600;
}

.sg-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 64px;
}
.sg-stat {
  text-align: center;
  padding: 32px 16px;
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-alt);
  transition: border-color var(--transition-med);
}
.sg-stat-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 8px;
}
.sg-stat-label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.sg-block {
  margin-bottom: 48px;
}
.sg-block h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.sg-block p {
  color: var(--color-text-muted);
  line-height: 1.7;
  font-size: 1rem;
}

.sg-universities {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 16px;
}
.sg-uni {
  padding: 14px 18px;
  border-left: 2px solid var(--color-accent);
  background: var(--color-bg-elevated);
  color: var(--color-text);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: border-color var(--transition-fast),
              background var(--transition-fast);
}
.sg-uni:hover {
  border-left-color: var(--color-accent-hover);
  background: var(--color-accent-subtle);
}

[data-theme="chess"] .sg-stat {
  border-color: var(--color-chess-gold);
}
[data-theme="chess"] .sg-uni {
  border-left-color: var(--color-chess-gold);
}
[data-theme="chess"] .sg-hero-logo .sg-letters {
  text-shadow: 0 0 60px var(--color-chess-gold-dim);
}

.sg-close-btn {
  display: block;
  margin: 48px auto 0;
  background: none;
  border: 1px solid var(--color-surface-border);
  color: var(--color-text-muted);
  padding: 12px 32px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: border-color var(--transition-fast),
              color var(--transition-fast),
              transform var(--transition-fast);
}
.sg-close-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

/* ============================================================
   VENTURES — Card Grid
   ============================================================ */
.ventures-intro {
  color: var(--color-text-muted);
  font-size: 1.0625rem;
  line-height: 1.6;
  max-width: 640px;
  margin-bottom: 48px;
}

.ventures-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.venture-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-md);
  padding: 36px 32px;
  transition: border-color var(--transition-med),
              transform var(--transition-med),
              box-shadow var(--transition-med);
}
.venture-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.venture-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}
.venture-card p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* Showcase card — full-width with dashboard embed */
.venture-card--showcase {
  grid-column: 1 / -1;
}
.venture-card--showcase h3 {
  margin-bottom: 8px;
}
.venture-card--showcase > p {
  margin-bottom: 24px;
}

.dashboard-preview {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: #0E0E11;
  border: 1px solid var(--color-surface-border);
}
.dashboard-preview iframe {
  width: 100%;
  height: 100%;
  border: none;
  pointer-events: none;
  transform-origin: 0 0;
}
.dashboard-preview-label {
  position: absolute;
  bottom: 12px;
  right: 12px;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.5);
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  padding: 4px 10px;
  border-radius: 4px;
}

/* Murder Mystery overrides for ventures zone */
[data-theme="murder-mystery"] .venture-card:hover {
  border-color: var(--color-mm-gold);
  box-shadow: 0 4px 24px rgba(196, 54, 74, 0.12);
}
[data-theme="murder-mystery"] .venture-card h3 {
  color: var(--color-mm-gold);
}

@media (max-width: 600px) {
  .ventures-grid { grid-template-columns: 1fr; }
  .venture-card--showcase {
    grid-column: auto;
  }
  .dashboard-preview {
    aspect-ratio: 4 / 3;
  }
}


/* SG section divider line */
.sg-divider {
  width: 80px;
  height: 1px;
  background: var(--color-accent);
  margin: 0 auto 48px;
  opacity: 0.4;
}

@media (max-width: 900px) {
  .sg-partner { flex-direction: column; gap: 24px; padding: 32px; }
  .sg-hero-logo .sg-letters { font-size: 5rem; }
}
@media (max-width: 600px) {
  .sg-stats { grid-template-columns: 1fr; }
  .sg-universities { grid-template-columns: 1fr; }
  .sg-tagline { font-size: 1.25rem; }
  .sg-partner { padding: 24px; }
}


/* ============================================================
   CLIENTS — Card Grid
   ============================================================ */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.client-card {
  display: flex;
  flex-direction: column;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-md);
  padding: 36px 32px;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--transition-med),
              transform var(--transition-med),
              box-shadow var(--transition-med);
  position: relative;
}
.client-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.client-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 10px;
}
.client-card p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
  flex: 1;
}
.card-arrow {
  position: absolute;
  top: 36px;
  right: 32px;
  font-size: 1.25rem;
  color: var(--color-text-muted);
  transition: color var(--transition-fast),
              transform var(--transition-fast);
}
.client-card:hover .card-arrow,
.venture-card:hover .card-arrow {
  color: var(--color-accent);
  transform: translateX(4px);
}

/* Venture cards — clickable with arrow */
.venture-card {
  cursor: pointer;
  position: relative;
}
.venture-card .card-arrow {
  position: absolute;
  top: 36px;
  right: 32px;
}


/* ============================================================
   DETAIL VIEW — Full-page venture takeover
   ============================================================ */
.detail-view {
  display: none;
  min-height: 100vh;
  padding-top: calc(var(--header-height) + 60px);
  padding-bottom: var(--section-pad);
}
.detail-view.active { display: block; }

.detail-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: 1px solid var(--color-surface-border);
  color: var(--color-text-muted);
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 48px;
  transition: border-color var(--transition-fast),
              color var(--transition-fast);
}
.detail-back:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.detail-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 24px;
  line-height: 1.2;
}

.detail-body {
  max-width: 720px;
}
.detail-body p {
  color: var(--color-text-muted);
  font-size: 1.0625rem;
  line-height: 1.7;
  margin-bottom: 20px;
}
.detail-body p:last-child { margin-bottom: 0; }

.detail-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-accent);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  margin-top: 24px;
  transition: gap var(--transition-fast);
}
.detail-link:hover { gap: 12px; }

@media (max-width: 600px) {
  .clients-grid { grid-template-columns: 1fr; }
}
