/* ==========================================================================
   EXECUTIVE ARCHITECT PORTFOLIO STYLES (V4 ENHANCED)
   Author: Arif Widiyanto
   Theme: Deep Slate / Corporate Tech Executive (Sleek 3D Ambient)
   ========================================================================== */

:root {
  /* Color Palette - Premium Slate & Electric Cyan */
  --bg-dark: #090d16;
  --bg-panel: #0d1322;
  --bg-card: rgba(15, 23, 42, 0.75);
  --border-card: rgba(255, 255, 255, 0.08);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-cyan: #38bdf8;
  --accent-blue: #2563eb;
  --accent-indigo: #6366f1;
  --accent-emerald: #10b981;

  /* Typography */
  --font-sans: 'Inter', -apple-system, sans-serif;
  --font-heading: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Shadows & Radius */
  --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.4);
  --glow-cyan: 0 0 25px rgba(56, 189, 248, 0.25);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

/* 3D WebGL Canvas Layer */
#webgl-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -2;
  pointer-events: none;
}

/* Subtle Cursor Glow */
.cursor-glow {
  position: fixed;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.07) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%);
  z-index: -1;
}

/* Utility */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.bg-panel {
  background-color: var(--bg-panel);
  border-top: 1px solid var(--border-card);
  border-bottom: 1px solid var(--border-card);
}

.text-gradient {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-indigo));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: #090d16;
  box-shadow: var(--glow-cyan);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(56, 189, 248, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid var(--border-card);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.btn-outline {
  background: none;
  border: 1px solid var(--border-card);
  color: var(--text-main);
}

.btn-outline:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(9, 13, 22, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-card);
  padding: 14px 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.brand-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar-fallback {
  background: var(--accent-blue);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-info {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-main);
}

.brand-title {
  font-size: 0.75rem;
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-indicator {
  width: 6px;
  height: 6px;
  background: var(--accent-emerald);
  border-radius: 50%;
}

.nav-menu {
  display: flex;
  gap: 28px;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--accent-cyan);
}

.nav-actions {
  display: flex;
  gap: 12px;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.4rem;
  cursor: pointer;
}

/* HERO SECTION */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 120px;
  padding-bottom: 60px;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 50px;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  margin-bottom: 20px;
}

.badge-dot {
  width: 6px;
  height: 6px;
  background-color: var(--accent-cyan);
  border-radius: 50%;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 600px;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-metrics {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 28px;
  border-top: 1px solid var(--border-card);
}

.metric-value {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-main);
  display: inline-block;
}

.metric-plus {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  display: block;
}

.metric-divider {
  width: 1px;
  height: 36px;
  background: var(--border-card);
}

/* EXECUTIVE PROFILE CARD & CODE TABS */
.executive-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.user-profile-header {
  display: flex;
  align-items: center;
  gap: 14px;
}

.profile-thumb {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent-cyan);
}

.profile-name {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
}

.profile-role {
  font-size: 0.82rem;
  color: var(--accent-cyan);
}

.location-tag {
  font-size: 0.78rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 4px;
}

.expertise-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.chip {
  font-size: 0.78rem;
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Sleek Code Spec Panel with Tab Switcher */
.card-code-panel {
  background: #060911;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 14px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.code-tab-bar {
  display: flex;
  gap: 6px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.code-tab-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.code-tab-btn:hover, .code-tab-btn.active {
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent-cyan);
}

.code-tab-content {
  display: none;
}

.code-tab-content.active {
  display: block;
}

.code-content code {
  color: var(--text-muted);
  line-height: 1.5;
}

.code-content .k { color: var(--accent-cyan); }
.code-content .s { color: var(--accent-emerald); }
.code-content .n { color: var(--text-main); }

/* SECTION HEADERS */
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 50px;
}

.section-kicker {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  display: block;
  margin-bottom: 8px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 12px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1rem;
}

/* GRID PANELS */
.grid-four {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.panel-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
}

.panel-card:hover {
  border-color: rgba(56, 189, 248, 0.3);
  transform: translateY(-4px);
}

.panel-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.2rem;
}

.panel-icon.blue { background: rgba(37, 99, 235, 0.15); color: var(--accent-cyan); }
.panel-icon.cyan { background: rgba(56, 189, 248, 0.15); color: var(--accent-cyan); }
.panel-icon.purple { background: rgba(99, 102, 241, 0.15); color: var(--accent-indigo); }
.panel-icon.emerald { background: rgba(16, 185, 129, 0.15); color: var(--accent-emerald); }

.panel-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.panel-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* STACK GRID */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.stack-box {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.stack-header {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: var(--accent-cyan);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.stack-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.stack-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.stack-list li i {
  color: var(--accent-cyan);
  margin-top: 3px;
  flex-shrink: 0;
}

/* CASE STUDIES / PROJECTS */
.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.case-card:hover {
  border-color: rgba(56, 189, 248, 0.3);
  transform: translateY(-4px);
}

.case-badge {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  padding: 4px 10px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: var(--radius-sm);
  color: var(--accent-cyan);
  margin-bottom: 16px;
}

.case-card h3 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  margin-bottom: 10px;
}

.case-desc {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 20px;
  flex-grow: 1;
}

.case-impact {
  display: flex;
  gap: 20px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}

.impact-item strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  color: var(--accent-cyan);
}

.impact-item span {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.case-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.case-tech span {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.05);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
}

.case-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-cyan);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
}

.case-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--accent-emerald);
}

/* TIMELINE */
.timeline {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.timeline-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.timeline-meta .year {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-cyan);
  font-weight: 600;
}

.timeline-meta .company {
  display: block;
  font-size: 0.88rem;
  color: var(--text-dim);
}

.timeline-body h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  margin-bottom: 6px;
}

.timeline-body p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* CONTACT BOX */
.contact-box {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 50px 40px;
  text-align: center;
}

.contact-heading {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  margin-bottom: 12px;
}

.contact-lead {
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 32px;
  font-size: 1.05rem;
}

.contact-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-subtext {
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* FOOTER */
.footer {
  padding: 30px 0;
  border-top: 1px solid var(--border-card);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
  color: var(--text-dim);
}

.top-link {
  color: var(--text-muted);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 4px;
}

.top-link:hover {
  color: var(--accent-cyan);
}

/* RESPONSIVE */
@media (max-width: 992px) {
  .hero-container {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .timeline-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

@media (max-width: 768px) {
  .nav-menu { display: none; }
  .mobile-toggle { display: block; }
  .hero-cta-group { flex-direction: column; }
  .hero-metrics { flex-direction: column; align-items: flex-start; gap: 12px; }
  .metric-divider { display: none; }
}