/* =========================================================
   PORTAFOLIO IIoT — Gabriel Castro
   Design System: "Industrial Futurism"
   ========================================================= */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700;800&family=DM+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

/* --- Design Tokens --- */
:root {
  /* Backgrounds */
  --bg-primary: #090A12;
  --bg-secondary: #0E0F1A;
  --bg-tertiary: #13141F;
  --bg-card: #0E0F1A;
  --bg-card-hover: #1A1B2A;

  /* Accents */
  --accent-cyan: #6366F1; /* Indigo */
  --accent-cyan-dim: #818CF8; /* Indigo Light */
  --accent-orange: #10B981; /* Emerald */
  --accent-orange-dim: #34D399; /* Emerald Light */
  --accent-green: #34D399; /* Emerald Light */
  --accent-green-dim: #A7F3D0; /* Emerald Pale */

  /* Text */
  --text-primary: #F4F6FF;
  --text-secondary: rgba(244, 246, 255, 0.60);
  --text-tertiary: rgba(244, 246, 255, 0.30);
  --text-accent: var(--accent-cyan);

  /* Glows */
  --glow-cyan: 0 0 30px rgba(99, 102, 241, 0.12), 0 0 60px rgba(99, 102, 241, 0.05);
  --glow-cyan-strong: 0 0 20px rgba(99, 102, 241, 0.3), 0 0 60px rgba(99, 102, 241, 0.1);
  --glow-orange: 0 0 30px rgba(16, 185, 129, 0.10), 0 0 60px rgba(16, 185, 129, 0.05);
  --glow-green: 0 0 30px rgba(16, 185, 129, 0.10);

  /* Borders */
  --border-subtle: rgba(244, 246, 255, 0.07);
  --border-accent: rgba(99, 102, 241, 0.12);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Spacing */
  --section-padding: clamp(60px, 10vh, 120px);
  --container-width: 1200px;
  --container-padding: clamp(16px, 4vw, 40px);
}

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

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-cyan-dim) var(--bg-primary);
  font-size: 16px;
}

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--accent-cyan-dim);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
}

/* Selection */
::selection {
  background: rgba(0, 229, 255, 0.25);
  color: var(--text-primary);
}

/* --- Background Noise Texture --- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

/* --- Utility Container --- */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  line-height: 1.2;
}

/* --- Scroll Reveal Animation --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- i18n Transition --- */
[data-i18n] {
  transition: opacity 0.3s ease;
}
.lang-switching [data-i18n] {
  opacity: 0;
}

/* ==========================================================
   PRELOADER
   ========================================================== */
#preloader {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

#preloader.hidden {
  opacity: 0;
  visibility: hidden;
}

.preloader-sequence {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 30px;
}

.preloader-step {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-tertiary);
  opacity: 0.4;
  transition: all 0.4s ease;
}

.preloader-step i {
  font-size: 1.2rem;
}

.preloader-arrow {
  color: var(--text-tertiary);
  font-size: 1.2rem;
  opacity: 0.2;
  transition: all 0.4s ease;
}

/* Active states */
.preloader-step.active-ot {
  opacity: 1;
  color: var(--accent-orange);
  border-color: rgba(255, 107, 53, 0.4);
  box-shadow: var(--glow-orange);
}

.preloader-step.active-cloud {
  opacity: 1;
  color: var(--accent-cyan);
  border-color: rgba(0, 229, 255, 0.4);
  box-shadow: var(--glow-cyan);
}

.preloader-step.active-it {
  opacity: 1;
  color: var(--accent-green);
  border-color: rgba(0, 255, 136, 0.4);
  box-shadow: var(--glow-green);
}

.preloader-arrow.active {
  opacity: 1;
  color: var(--text-primary);
  transform: translateX(4px);
}

.preloader-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.preloader-bar {
  width: 200px;
  height: 2px;
  background: var(--border-subtle);
  border-radius: 2px;
  overflow: hidden;
}

.preloader-progress {
  width: 0%;
  height: 100%;
  background: var(--accent-cyan);
  transition: width 0.3s ease;
}

@media (max-width: 768px) {
  .preloader-sequence {
    flex-direction: column;
    gap: 12px;
  }
  .preloader-arrow {
    transform: rotate(90deg);
  }
  .preloader-arrow.active {
    transform: rotate(90deg) translateY(4px);
  }
}

/* ==========================================================
   NAVBAR
   ========================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition-smooth);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(6, 10, 18, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-subtle);
  padding: 10px 0;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-logo .logo-bracket {
  color: var(--accent-cyan);
  font-weight: 400;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.3px;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-cyan);
  transition: width var(--transition-smooth);
  border-radius: 1px;
  box-shadow: 0 0 8px rgba(0, 229, 255, 0.4);
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a:hover::after {
  width: 100%;
}

/* Language Toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  padding: 6px 12px;
  border-radius: var(--radius-xl);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  outline: none;
}

.lang-toggle:hover {
  background: rgba(0, 229, 255, 0.04);
  border-color: rgba(0, 229, 255, 0.1);
}

.lang-toggle:focus-visible {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 2px rgba(0, 229, 255, 0.2);
}

.lang-toggle span {
  color: var(--text-tertiary);
  transition: color var(--transition-fast), text-shadow var(--transition-fast);
  padding: 2px 0;
}

.lang-toggle span.active {
  color: var(--accent-cyan);
  text-shadow: 0 0 12px rgba(0, 229, 255, 0.5);
}

.lang-switch {
  width: 42px;
  height: 24px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-accent);
  border-radius: 12px;
  position: relative;
  transition: all var(--transition-smooth);
  flex-shrink: 0;
}

.lang-toggle:hover .lang-switch {
  border-color: var(--accent-cyan);
  box-shadow: var(--glow-cyan);
}

.lang-switch::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-cyan);
  top: 2px;
  left: 2px;
  transition: transform var(--transition-spring);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.5);
}

.lang-toggle[data-lang="en"] .lang-switch::after {
  transform: translateX(18px);
}

/* Mobile Menu */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
  padding: 4px;
}

.nav-hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-smooth);
}

.nav-hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav-hamburger.active span:nth-child(2) {
  opacity: 0;
}
.nav-hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ==========================================================
   HERO / ABOUT SECTION
   ========================================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 80px;
  overflow: hidden;
}

/* Ambient background glow */
.hero::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.06) 0%, transparent 70%);
  top: 10%;
  right: -10%;
  pointer-events: none;
  animation: ambient-pulse 8s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.04) 0%, transparent 70%);
  bottom: 10%;
  left: -5%;
  pointer-events: none;
  animation: ambient-pulse 10s ease-in-out infinite reverse;
}

@keyframes ambient-pulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}

.hero-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

/* Profile Card */
.profile-card {
  position: relative;
}

.profile-image-wrapper {
  position: relative;
  width: 280px;
  height: 280px;
  margin: 0 auto;
}

.profile-image-wrapper::before {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: conic-gradient(
    from 0deg,
    var(--accent-cyan),
    var(--accent-green),
    var(--accent-cyan),
    transparent,
    var(--accent-orange),
    var(--accent-cyan)
  );
  animation: rotate-border 6s linear infinite;
  z-index: 0;
}

@keyframes rotate-border {
  to { transform: rotate(360deg); }
}

.profile-image-wrapper::after {
  content: '';
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: var(--bg-primary);
  z-index: 1;
}

.profile-image {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  padding: 6px;
}

.profile-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--accent-green);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  animation: status-blink 2s ease-in-out infinite;
  box-shadow: var(--glow-green);
}

@keyframes status-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* Hero Content */
.hero-content {
  max-width: 640px;
}

.hero-greeting {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--accent-cyan);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-greeting::before {
  content: '';
  width: 40px;
  height: 1px;
  background: var(--accent-cyan);
}

.hero-name {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -2px;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-role {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(0.85rem, 1.5vw, 1.05rem);
  color: var(--accent-orange);
  font-weight: 500;
  margin-bottom: 28px;
  padding-left: 2px;
}

.hero-description {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 36px;
}

.hero-description p + p {
  margin-top: 16px;
}

/* Hero Highlights */
.hero-highlights {
  display: flex;
  gap: 32px;
  margin-bottom: 40px;
  border-left: 2px solid var(--accent-cyan-dim);
  padding-left: 20px;
}

.highlight-item {
  display: flex;
  flex-direction: column;
}

.highlight-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
}

.highlight-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 4px;
}

/* CTA Buttons */
.cta-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.btn:hover::before {
  opacity: 1;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), #00b8d4);
  color: var(--bg-primary);
  box-shadow: var(--glow-cyan);
}

.btn-primary::before {
  background: linear-gradient(135deg, #00ffff, var(--accent-cyan));
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--glow-cyan-strong);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-accent);
}

.btn-secondary::before {
  background: rgba(0, 229, 255, 0.05);
}

.btn-secondary:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-3px);
  box-shadow: var(--glow-cyan);
}

.btn i {
  font-size: 1rem;
}

/* ==========================================================
   SKILLS SECTION
   ========================================================== */
.skills-section {
  padding: var(--section-padding) 0;
  position: relative;
  overflow: hidden;
}

.skills-section .container {
  position: relative;
  z-index: 2;
}

/* Skills Canvas Background */
#skills-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.6;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  margin-bottom: 12px;
  letter-spacing: -1px;
}

.section-header .accent-text {
  color: var(--accent-cyan);
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Flow Diagram Labels */
.flow-labels {
  display: flex;
  justify-content: space-around;
  align-items: center;
  margin-bottom: 40px;
  gap: 20px;
  position: relative;
}

.flow-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-cyan);
  padding: 8px 20px;
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xl);
  background: rgba(0, 229, 255, 0.03);
  text-align: center;
  position: relative;
  white-space: nowrap;
}

.flow-label i {
  margin-right: 6px;
  font-size: 0.9rem;
}

.flow-arrow {
  color: var(--accent-cyan-dim);
  font-size: 1.2rem;
  animation: flow-pulse 2s ease-in-out infinite;
}

.flow-arrow:nth-child(4) {
  animation-delay: 0.5s;
}

@keyframes flow-pulse {
  0%, 100% { opacity: 0.3; transform: translateX(0); }
  50% { opacity: 1; transform: translateX(4px); }
}

/* Skills Columns */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.skill-column {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.skill-column::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  background: linear-gradient(135deg, transparent 40%, rgba(0, 229, 255, 0.1)) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.skill-column:hover::before {
  opacity: 1;
}

.skill-column:hover {
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--glow-cyan);
}

/* Color-code columns */
.skill-column[data-col="ot"] .column-title { color: var(--accent-orange); }
.skill-column[data-col="ot"]:hover { box-shadow: var(--glow-orange); }
.skill-column[data-col="cloud"] .column-title { color: var(--accent-cyan); }
.skill-column[data-col="it"] .column-title { color: var(--accent-green); }
.skill-column[data-col="it"]:hover { box-shadow: var(--glow-green); }

.column-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.column-title i {
  font-size: 1rem;
}

.column-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-subtle);
}

/* Individual Skill Item */
.skill-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: default;
  position: relative;
}

.skill-item:hover {
  background: rgba(255, 255, 255, 0.03);
}

.skill-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.skill-item:hover .skill-icon {
  color: var(--accent-cyan);
}

.skill-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.skill-name {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
}

.skill-desc {
  font-size: 0.72rem;
  color: var(--text-tertiary);
}

/* Skill Tooltip */
.skill-tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) scale(0.95);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: all var(--transition-fast);
  border: 1px solid var(--border-accent);
  box-shadow: var(--glow-cyan);
  z-index: 10;
}

.skill-item:hover .skill-tooltip {
  opacity: 1;
  transform: translateX(-50%) scale(1);
}

/* ==========================================================
   PROJECTS SECTION
   ========================================================== */
.projects-section {
  padding: var(--section-padding) 0;
  position: relative;
}

.projects-grid {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.project-card {
  display: flex;
  flex-direction: row;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-smooth);
  position: relative;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-orange));
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--glow-cyan);
  border-color: var(--border-accent);
}

.project-card:hover::before {
  opacity: 1;
}

/* Carousel Container */
.carousel-container {
  width: 40%;
  min-width: 300px;
  flex-shrink: 0;
  overflow: hidden;
  position: relative;
}

.carousel-track {
  display: flex;
  height: 100%;
  transition: transform 0.4s ease-in-out;
}

.carousel-slide {
  min-width: 100%;
  height: 100%;
  background: var(--bg-tertiary);
}

.carousel-slide img, .carousel-slide video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Navigation Buttons */
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(9, 10, 18, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all var(--transition-fast);
  z-index: 5;
}

.carousel-container:hover .carousel-btn {
  opacity: 1;
}

.carousel-btn:hover {
  background: var(--accent-cyan);
  color: #fff;
  box-shadow: var(--glow-cyan);
}

.prev-btn { left: 10px; }
.next-btn { right: 10px; }

/* Dots */
.carousel-dots {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  z-index: 5;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.dot.active {
  background: var(--accent-cyan);
}

.project-thumbnail-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 85%, var(--bg-card) 100%);
  pointer-events: none;
}

.project-content {
  padding: 40px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.project-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: -0.3px;
  line-height: 1.4;
}

.project-description {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.project-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-xl);
  background: var(--border-accent);
  color: var(--accent-cyan);
  border: 1px solid var(--border-accent);
}

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

.project-actions .btn {
  padding: 8px 18px;
  font-size: 0.78rem;
}

/* ==========================================================
   CONTACT SECTION
   ========================================================== */
.contact-section {
  padding: var(--section-padding) 0;
  position: relative;
}

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

.contact-info {
  max-width: 460px;
}

.contact-info h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.contact-info p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 36px;
  line-height: 1.7;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-link-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  text-decoration: none;
  color: var(--text-primary);
  transition: all var(--transition-smooth);
}

.contact-link-item:hover {
  border-color: var(--border-accent);
  transform: translateX(8px);
  box-shadow: var(--glow-cyan);
}

.contact-link-item i {
  font-size: 1.2rem;
  color: var(--accent-cyan);
  width: 24px;
  text-align: center;
}

.contact-link-item span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  font-weight: 500;
}

/* Contact Form */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.08);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-tertiary);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-submit {
  width: 100%;
}

.form-message {
  margin-top: 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  text-align: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.form-message.show {
  opacity: 1;
}

.form-message.success {
  color: var(--accent-green);
}

.form-message.error {
  color: var(--accent-orange);
}

/* ==========================================================
   FOOTER
   ========================================================== */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border-subtle);
  margin-top: 20px;
}

.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-left p {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--text-tertiary);
}

.footer-left .footer-tagline {
  margin-top: 4px;
  color: var(--text-tertiary);
  font-style: italic;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.82rem;
}

.footer-socials {
  display: flex;
  gap: 16px;
}

.footer-socials a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1rem;
  transition: all var(--transition-smooth);
}

.footer-socials a:hover {
  color: var(--accent-cyan);
  border-color: var(--border-accent);
  transform: translateY(-3px);
  box-shadow: var(--glow-cyan);
}

/* ==========================================================
   RESPONSIVE DESIGN
   ========================================================== */

/* Tablet */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 260px 1fr;
    gap: 40px;
  }

  .profile-image-wrapper {
    width: 220px;
    height: 220px;
  }

  .skills-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    max-width: 300px;
    height: 100vh;
    background: rgba(6, 10, 18, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    padding: 60px 40px;
    gap: 32px;
    transition: right var(--transition-smooth);
    border-left: 1px solid var(--border-subtle);
  }

  .nav-links.open {
    right: 0;
  }

  .nav-hamburger {
    display: flex;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 36px;
    text-align: center;
  }

  .profile-card {
    order: -1;
  }

  .profile-image-wrapper {
    width: 200px;
    height: 200px;
  }

  .hero-greeting {
    justify-content: center;
  }

  .hero-greeting::before {
    display: none;
  }

  .hero-highlights {
    justify-content: center;
    flex-wrap: wrap;
    border-left: none;
    padding-left: 0;
    gap: 24px;
  }

  .highlight-item {
    align-items: center;
  }

  .cta-buttons {
    justify-content: center;
  }

  .flow-labels {
    flex-direction: column;
    gap: 12px;
  }

  .flow-arrow {
    transform: rotate(90deg);
  }

  .projects-grid {
    gap: 24px;
  }

  .project-card {
    flex-direction: column;
  }

  .project-thumbnail {
    width: 100%;
    height: 240px;
  }

  .project-thumbnail-overlay {
    background: linear-gradient(180deg, transparent 85%, var(--bg-card) 100%);
    pointer-events: none;
  }

  .project-content {
    padding: 24px;
  }

  .footer .container {
    flex-direction: column;
    text-align: center;
  }
}

/* Small Mobile */
@media (max-width: 480px) {
  .hero-name {
    font-size: 2rem;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
  }

  .project-thumbnail {
    height: 180px;
  }
}