/**
 * Origin X Digital (OXD) - Component Design System
 * Modular styling for Navigation, Language Switcher, Buttons, Capabilities Chapters,
 * Selected Work Showcase, Ventures, Proof Metrics, Trust Pillars, Form, and Cursor.
 */

/* ==========================================================================
   1. Navigation Header & Language Switcher
   ========================================================================== */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  background: rgba(5, 13, 34, 0.72);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--oxd-line-dark);
  transition: transform var(--transition-normal), background var(--transition-normal);
}

.site-nav-inner {
  width: var(--shell);
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: 0 var(--space-md);
}

.brand-header-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo-img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: var(--radius-xs);
  transition: transform var(--transition-fast);
}

.brand-header-link:hover .brand-logo-img {
  transform: scale(1.04);
}

.brand-mark {
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: var(--tracking-tight);
  color: var(--oxd-cream);
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

.brand-mark .x-glyph {
  color: var(--oxd-gold);
  font-style: italic;
  font-weight: 400;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-links-desktop {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-link {
  font-size: var(--text-small);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--oxd-muted);
  font-weight: 500;
  transition: color var(--transition-fast);
  padding: 6px 0;
  position: relative;
}

.nav-link:hover {
  color: var(--oxd-gold);
}

/* Compact Language Switcher Pill */
.lang-switcher-pill {
  display: inline-flex;
  align-items: center;
  background: rgba(16, 31, 68, 0.6);
  border: 1px solid var(--oxd-line);
  border-radius: var(--radius-full);
  padding: 3px 4px;
  gap: 2px;
}

.lang-btn {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  color: var(--oxd-muted);
  background: transparent;
  transition: all var(--transition-fast);
  line-height: 1;
}

.lang-btn:hover {
  color: var(--oxd-cream);
}

.lang-btn.active {
  background: var(--oxd-gold);
  color: var(--oxd-abyss);
  font-weight: 700;
}

/* ==========================================================================
   2. Buttons & Interactive Controls
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 14px 30px;
  font-family: var(--font-body);
  font-size: var(--text-small);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  border-radius: var(--radius-xs);
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.btn-gold {
  background: var(--oxd-gold);
  color: var(--oxd-abyss);
  border: 1px solid var(--oxd-gold);
}

.btn-gold:hover {
  background: var(--oxd-gold-bright);
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
}

.btn-ghost {
  background: transparent;
  color: var(--oxd-gold);
  border: 1px solid var(--oxd-line);
}

.btn-ghost:hover {
  border-color: var(--oxd-gold);
  background: rgba(216, 178, 106, 0.08);
  color: var(--oxd-gold-bright);
}

.btn-nav {
  padding: 9px 18px;
  font-size: 12px;
}

.btn-large {
  padding: 18px 40px;
  font-size: 14px;
}

.btn-venture {
  padding: 11px 22px;
  font-size: 12px;
  width: max-content;
}

/* ==========================================================================
   3. Eyebrows & Badges
   ========================================================================== */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: var(--text-eyebrow);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--oxd-gold);
  margin-bottom: var(--space-sm);
}

.eyebrow::before {
  content: '';
  display: inline-block;
  width: 28px;
  height: 1px;
  background: var(--oxd-gold-deep);
}

.badge-tag {
  display: inline-block;
  padding: 5px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  background: rgba(216, 178, 106, 0.07);
  color: var(--oxd-gold);
  border: 1px solid var(--oxd-line);
  border-radius: var(--radius-xs);
}

/* ==========================================================================
   4. Capabilities Chapters (01 BUILD & 02 GROW)
   ========================================================================== */
.capabilities-chapters-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  margin-top: var(--space-3xl);
}

.capability-chapter-card {
  background: linear-gradient(155deg, rgba(16, 31, 68, 0.55) 0%, rgba(8, 18, 42, 0.85) 100%);
  border: 1px solid var(--oxd-line-dark);
  border-top: 2px solid var(--oxd-line);
  border-radius: var(--radius-sm);
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 480px;
  transition: border-color var(--transition-normal), transform var(--transition-normal), box-shadow var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.capability-chapter-card:hover {
  border-color: var(--oxd-line-active);
  transform: translateY(-4px);
  box-shadow: var(--shadow-elevated);
}

.cap-visual-metaphor {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 90px;
  height: 90px;
  pointer-events: none;
  opacity: 0.18;
  transition: opacity var(--transition-normal);
}

.capability-chapter-card:hover .cap-visual-metaphor {
  opacity: 0.40;
}

/* BUILD Metaphor: Modular Architecture Grid */
.metaphor-grid-structure {
  width: 100%;
  height: 100%;
  position: relative;
  border: 1px solid var(--oxd-gold);
  background-image: linear-gradient(to right, rgba(216, 178, 106, 0.3) 1px, transparent 1px),
                    linear-gradient(to bottom, rgba(216, 178, 106, 0.3) 1px, transparent 1px);
  background-size: 22px 22px;
}

.metaphor-grid-structure .m-node {
  position: absolute;
  width: 6px;
  height: 6px;
  background: var(--oxd-gold);
  border-radius: 50%;
}
.metaphor-grid-structure .n1 { top: -3px; left: -3px; }
.metaphor-grid-structure .n2 { bottom: -3px; right: -3px; }

/* GROW Metaphor: Precision Signal Vectors */
.metaphor-signal-vectors {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 10px;
}

.metaphor-signal-vectors .s-vector {
  flex: 1;
  background: linear-gradient(to top, var(--oxd-gold), transparent);
  border-radius: 1px;
}
.metaphor-signal-vectors .v1 { height: 35%; }
.metaphor-signal-vectors .v2 { height: 65%; }
.metaphor-signal-vectors .v3 { height: 95%; }

.cap-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
  position: relative;
  z-index: 1;
}

.cap-index {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--oxd-gold);
  letter-spacing: var(--tracking-widest);
  font-weight: 600;
}

.cap-subtitle-mono {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--oxd-subtle);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.cap-title {
  font-size: clamp(24px, 2.6vw, 34px);
  color: var(--oxd-cream);
  margin-bottom: var(--space-sm);
  position: relative;
  z-index: 1;
}

.cap-desc {
  font-size: var(--text-body);
  line-height: var(--leading-normal);
  color: var(--oxd-muted);
  margin-bottom: var(--space-xl);
  position: relative;
  z-index: 1;
}

.cap-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  border-top: 1px solid var(--oxd-line-dark);
  padding-top: var(--space-lg);
  position: relative;
  z-index: 1;
}

.cap-features-list li {
  font-size: 14px;
  color: var(--oxd-cream);
  display: flex;
  align-items: center;
  gap: 10px;
}

.cap-bullet {
  width: 5px;
  height: 5px;
  background: var(--oxd-gold);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ==========================================================================
   5. Selected Work Showcase (Energy Nexus - Major Portfolio Presentation)
   ========================================================================== */
.work-feature-card {
  display: grid;
  grid-template-columns: 1.1fr 1.3fr;
  gap: var(--space-3xl);
  background: linear-gradient(145deg, rgba(16, 31, 68, 0.65) 0%, rgba(5, 13, 34, 0.90) 100%);
  border: 1px solid var(--oxd-line-dark);
  border-top: 1px solid var(--oxd-line);
  border-radius: var(--radius-sm);
  padding: var(--space-3xl);
  margin-top: var(--space-3xl);
  align-items: center;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
  position: relative;
}

.work-feature-card:hover {
  border-color: var(--oxd-line-active);
  box-shadow: var(--shadow-elevated);
}

.work-visual-showcase {
  background: radial-gradient(circle at center, rgba(19, 37, 82, 0.6) 0%, rgba(5, 13, 34, 0.95) 100%);
  border: 1px solid var(--oxd-line-dark);
  border-radius: var(--radius-xs);
  padding: var(--space-3xl) var(--space-2xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  min-height: 280px;
}

.work-client-logo {
  max-width: 160px;
  max-height: 160px;
  object-fit: contain;
  filter: drop-shadow(0 12px 25px rgba(0,0,0,0.6));
  transition: transform var(--transition-normal);
}

.work-feature-card:hover .work-client-logo {
  transform: scale(1.05);
}

.work-status-pill {
  position: absolute;
  top: 14px;
  left: 14px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--oxd-gold);
  background: rgba(216, 178, 106, 0.08);
  border: 1px solid var(--oxd-line);
  padding: 4px 10px;
  border-radius: var(--radius-xs);
}

.work-content-frame {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.work-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--oxd-line-dark);
  padding-bottom: var(--space-xs);
}

.work-category-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--oxd-gold);
}

.work-year {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--oxd-subtle);
}

.work-client-name {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.2vw, 42px);
  color: var(--oxd-cream);
  line-height: var(--leading-tight);
}

.work-desc {
  font-size: 16px;
  line-height: var(--leading-normal);
  color: var(--oxd-muted);
}

.work-deliverables-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-xs);
}

/* ==========================================================================
   6. Built By OXD (Ventures: Rekafy & Atmano)
   ========================================================================== */
.ventures-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  margin-top: var(--space-3xl);
}

.venture-card {
  background: linear-gradient(155deg, rgba(16, 31, 68, 0.6) 0%, rgba(5, 13, 34, 0.85) 100%);
  border: 1px solid var(--oxd-line-dark);
  border-top: 1px solid var(--oxd-line);
  border-radius: var(--radius-sm);
  padding: var(--space-2xl);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 440px;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.venture-card:hover {
  transform: translateY(-5px);
  border-color: var(--oxd-line-active);
  box-shadow: var(--shadow-elevated);
}

.venture-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-sm);
}

.venture-index {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--oxd-gold);
  letter-spacing: var(--tracking-widest);
}

.venture-brand {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.4vw, 42px);
  color: var(--oxd-cream);
  margin-bottom: 2px;
}

.venture-category {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--oxd-gold);
  margin-bottom: var(--space-md);
}

.venture-desc {
  font-size: 15px;
  line-height: var(--leading-normal);
  color: var(--oxd-muted);
  margin-bottom: var(--space-lg);
}

.venture-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-xl);
}

.venture-pill {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 4px 9px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--oxd-line-dark);
  border-radius: var(--radius-xs);
  color: var(--oxd-subtle);
}

.venture-ambient-graphic {
  position: absolute;
  top: 24px;
  right: 24px;
  pointer-events: none;
  opacity: 0.16;
  transition: opacity var(--transition-normal);
}

.venture-card:hover .venture-ambient-graphic {
  opacity: 0.38;
}

.rekafy-grid-graphic {
  width: 72px;
  height: 72px;
  background-image: 
    linear-gradient(to right, var(--oxd-gold) 1px, transparent 1px),
    linear-gradient(to bottom, var(--oxd-gold) 1px, transparent 1px);
  background-size: 18px 18px;
}

.atmano-nfc-rings {
  width: 72px;
  height: 72px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.atmano-nfc-rings .ring {
  position: absolute;
  border: 1px solid var(--oxd-gold);
  border-radius: 50%;
}
.atmano-nfc-rings .r1 { width: 22px; height: 22px; }
.atmano-nfc-rings .r2 { width: 46px; height: 46px; }
.atmano-nfc-rings .r3 { width: 70px; height: 70px; }

/* ==========================================================================
   7. Proof Metric Cards (Editorial Evidence)
   ========================================================================== */
.proof-metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.metric-card {
  background: linear-gradient(145deg, rgba(16, 31, 68, 0.6) 0%, rgba(5, 13, 34, 0.85) 100%);
  border: 1px solid var(--oxd-line-dark);
  border-top: 1px solid var(--oxd-line);
  border-radius: var(--radius-sm);
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
}

.metric-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--oxd-gold);
}

.metric-value {
  font-family: var(--font-display);
  font-size: var(--text-metric);
  color: var(--oxd-gold);
  line-height: var(--leading-tight);
}

.metric-label {
  font-family: var(--font-mono);
  font-size: var(--text-small);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--oxd-cream);
}

.metric-source {
  font-size: 12px;
  color: var(--oxd-subtle);
}

/* ==========================================================================
   8. Trust Pillars Grid
   ========================================================================== */
.trust-pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.trust-pillar-card {
  background: rgba(16, 31, 68, 0.35);
  border: 1px solid var(--oxd-line-dark);
  border-radius: var(--radius-xs);
  padding: var(--space-xl);
}

.trust-title {
  font-size: 19px;
  color: var(--oxd-cream);
  margin-bottom: 8px;
}

.trust-desc {
  font-size: 14px;
  color: var(--oxd-muted);
  line-height: 1.6;
}

/* ==========================================================================
   9. Project Enquiry Form (Form -> WhatsApp Conduit)
   ========================================================================== */
.oxd-project-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  width: 100%;
  text-align: left;
}

.form-grid-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  width: 100%;
}

.form-group {
  display: flex;
  flex-direction: column;
  position: relative;
  width: 100%;
  text-align: left;
}

.form-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--oxd-cream);
  margin-bottom: 8px;
  text-align: left;
}

.form-label .badge-opt {
  font-size: 10px;
  color: var(--oxd-subtle);
  text-transform: none;
  font-family: var(--font-body);
}

.form-label .req-mark {
  color: var(--oxd-gold);
  margin-left: 2px;
}

.form-control {
  width: 100%;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  color: var(--oxd-cream);
  background-color: rgba(10, 23, 52, 0.75);
  border: 1px solid var(--oxd-line-dark);
  border-radius: var(--radius-xs);
  padding: 13px 16px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
  appearance: none;
  -webkit-appearance: none;
  box-sizing: border-box;
}

.form-control::placeholder {
  color: var(--oxd-subtle);
  opacity: 0.7;
}

.form-control:hover {
  border-color: var(--oxd-line);
}

.form-control:focus {
  outline: none;
  border-color: var(--oxd-gold);
  box-shadow: 0 0 0 2px var(--oxd-gold-glow);
  background-color: rgba(16, 31, 68, 0.95);
}

.form-control.input-invalid {
  border-color: #E55353 !important;
  box-shadow: 0 0 0 1px rgba(229, 83, 83, 0.3) !important;
}

select.form-control {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23D8B26A' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

select.form-control option {
  background-color: #0A1734;
  color: var(--oxd-cream);
  padding: 8px 12px;
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
  line-height: 1.5;
}

.form-error-msg {
  font-family: var(--font-mono);
  font-size: 11px;
  color: #FF8585;
  margin-top: 6px;
  display: none;
  text-align: left;
}

.btn-form-submit {
  width: 100%;
  margin-top: var(--space-xs);
  cursor: pointer;
}

.btn-form-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* ==========================================================================
   10. Precision Cursor Follower
   ========================================================================== */
.custom-cursor-follower {
  position: fixed;
  top: 0;
  left: 0;
  width: 9px;
  height: 9px;
  background: var(--oxd-gold);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.22s var(--ease-out-expo), height 0.22s var(--ease-out-expo), background 0.22s, border 0.22s;
  will-change: transform;
}

.custom-cursor-follower.cursor-hover {
  width: 38px;
  height: 38px;
  background: rgba(216, 178, 106, 0.10);
  border: 1px solid var(--oxd-gold);
}

@media (hover: none) and (pointer: coarse) {
  .custom-cursor-follower {
    display: none !important;
  }
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 1024px) {
  .nav-links-desktop {
    display: none;
  }
  .capabilities-chapters-grid,
  .ventures-grid,
  .trust-pillars-grid {
    grid-template-columns: 1fr;
  }
  .work-feature-card {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

@media (max-width: 640px) {
  .form-grid-row {
    grid-template-columns: 1fr;
  }
  .proof-metrics-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .site-nav-inner {
    padding: 0 var(--space-xs);
    gap: 6px;
  }
  .nav-actions {
    gap: 6px;
  }
  .brand-logo-img {
    width: 28px;
    height: 28px;
  }
  .brand-mark {
    font-size: 15px;
  }
  .btn-nav {
    padding: 6px 10px;
    font-size: 11px;
  }
  .lang-btn {
    padding: 3px 7px;
    font-size: 10px;
  }
}