/* 
  ========================================================================
  PORTFOLIO DESIGN SYSTEM & STYLESHEET
  Author: Sweli Giri (Redesigned)
  Description: Custom Vanilla CSS for Premium, Modern & Clean look.
  Features: Light/Dark Mode, Glassmorphism, Custom Timeline, Grid, & Smooth Animations.
  ========================================================================
*/

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

/* Reset & Base Variables */
:root {
  /* Font Family */
  --font-heading: 'Outfit', 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;

  /* Color Palette - Light Theme Default */
  --bg-primary: #f8fafc; /* Off White */
  --bg-secondary: rgba(203, 213, 225, 0.35); /* Soft Silver at 35% opacity */
  --bg-tertiary: #cbd5e1; /* Soft Silver */
  --text-primary: #0f172a; /* Midnight Navy */
  --text-secondary: #1e293b; /* Slate Blue */
  --text-muted: #475569; /* Gray/Slate */
  --border-color: rgba(30, 41, 59, 0.08); /* Midnight Navy / Slate Blue borders */
  
  /* Accents - Gold */
  --accent: #d4af37; /* Accent Gold */
  --accent-rgb: 212, 175, 55;
  --accent-light: rgba(212, 175, 55, 0.08);
  --accent-gradient: linear-gradient(135deg, #d4af37 0%, #aa820a 100%);
  --accent-gradient-hover: linear-gradient(135deg, #aa820a 0%, #d4af37 100%);
  --success: #10b981;
  
  /* Cards & Elevate */
  --card-bg: rgba(255, 255, 255, 0.85);
  --card-border: rgba(30, 41, 59, 0.06);
  --card-shadow: 0 10px 30px -10px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.02);
  --nav-bg: rgba(248, 250, 252, 0.85);
  --nav-border: rgba(30, 41, 59, 0.05);
  
  /* Glow/Blur Effects */
  --backdrop-blur: 12px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme Variables */
[data-theme="dark"] {
  --bg-primary: #0f172a; /* Midnight Navy */
  --bg-secondary: #111827; /* Charcoal */
  --bg-tertiary: #1f2937; /* Gunmetal */
  --text-primary: #f8fafc; /* Off White */
  --text-secondary: #cbd5e1; /* Soft Silver */
  --text-muted: #94a3b8; /* Slate gray */
  --border-color: rgba(203, 213, 225, 0.12); /* Soft Silver border */
  
  --accent: #d4af37; /* Accent Gold */
  --accent-rgb: 212, 175, 55;
  --accent-light: rgba(212, 175, 55, 0.12);
  --accent-gradient: linear-gradient(135deg, #d4af37 0%, #aa820a 100%);
  --accent-gradient-hover: linear-gradient(135deg, #aa820a 0%, #d4af37 100%);
  --success: #34d399;
  
  --card-bg: rgba(17, 24, 39, 0.7); /* Charcoal with opacity */
  --card-border: rgba(203, 213, 225, 0.08);
  --card-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.45), 0 1px 3px rgba(0, 0, 0, 0.1);
  --nav-bg: rgba(15, 23, 42, 0.85);
  --nav-border: rgba(203, 213, 225, 0.06);
}

/* Basic Reset & Smooth Scroll */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Typography Elements */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 8rem 0;
  position: relative;
}

.section-bg {
  background-color: var(--bg-secondary);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 5rem auto;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  position: relative;
  display: inline-block;
  letter-spacing: -0.02em;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 4px;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #ffffff;
  box-shadow: 0 10px 20px -5px rgba(var(--accent-rgb), 0.3);
}

.btn-primary:hover {
  background: var(--accent-gradient-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px -5px rgba(var(--accent-rgb), 0.45);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--text-muted);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-full {
  border-radius: var(--radius-full);
}

/* NAVIGATION BAR */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--nav-bg);
  backdrop-filter: blur(var(--backdrop-blur));
  -webkit-backdrop-filter: blur(var(--backdrop-blur));
  border-bottom: 1px solid var(--nav-border);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-secondary);
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--accent-gradient);
  transition: width var(--transition-fast);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

/* Dark Mode Switcher Toggle */
.theme-toggle {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  outline: none;
}

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

.theme-toggle .fa-sun {
  display: none;
}

[data-theme="dark"] .theme-toggle .fa-moon {
  display: none;
}

[data-theme="dark"] .theme-toggle .fa-sun {
  display: block;
}

/* Hamburger Icon for Mobile Menu */
.hamburger {
  display: none;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0.5rem;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 25px;
  height: 2px;
  margin-bottom: 5px;
  background-color: var(--text-primary);
  transition: all var(--transition-fast);
}

.hamburger span:last-child {
  margin-bottom: 0;
}

/* Mobile Nav Open State Classes */
.hamburger.active span:nth-child(1) {
  transform: rotate(-45deg) translate(-5px, 6px);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: rotate(45deg) translate(-5px, -6px);
}

/* HERO SECTION */
.hero {
  min-h: 100vh;
  padding-top: 130px;
  display: flex;
  align-items: center;
  background: radial-gradient(circle at 10% 20%, rgba(212, 175, 55, 0.04) 0%, transparent 40%),
              radial-gradient(circle at 90% 80%, rgba(30, 41, 59, 0.05) 0%, transparent 40%);
}

[data-theme="dark"] .hero {
  background: radial-gradient(circle at 10% 20%, rgba(212, 175, 55, 0.03) 0%, transparent 45%),
              radial-gradient(circle at 90% 80%, rgba(17, 24, 39, 0.3) 0%, transparent 45%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-badge {
  background-color: var(--accent-light);
  color: var(--accent);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  align-self: flex-start;
  border: 1px solid rgba(var(--accent-rgb), 0.15);
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.hero-title span {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 580px;
  margin-bottom: 1rem;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Image Visual & Frame */
.hero-image-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-image-wrapper::before {
  content: '';
  position: absolute;
  width: 110%;
  height: 110%;
  background: var(--accent-gradient);
  opacity: 0.15;
  filter: blur(40px);
  border-radius: var(--radius-lg);
  z-index: -1;
  animation: rotateGlow 20s infinite linear;
}

.hero-image-frame {
  width: 320px;
  height: 320px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 4px solid var(--border-color);
  background-color: var(--bg-secondary);
  box-shadow: var(--card-shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-normal);
}

.hero-image-frame:hover {
  transform: translateY(-5px) scale(1.02);
}

.hero-image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  padding: 1rem;
}

@keyframes rotateGlow {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* TENTANG SAYA */
.about-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(var(--backdrop-blur));
  -webkit-backdrop-filter: blur(var(--backdrop-blur));
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: relative;
  overflow: hidden;
}

.about-card::before {
  content: '"';
  position: absolute;
  top: -20px;
  right: 20px;
  font-size: 10rem;
  font-family: var(--font-heading);
  color: var(--border-color);
  opacity: 0.25;
  line-height: 1;
  pointer-events: none;
}

.about-text {
  font-size: 1.2rem;
  color: var(--text-secondary);
  line-height: 1.8;
  font-weight: 400;
  text-align: justify;
}

.about-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
}

.stat-item {
  text-align: center;
}

.stat-num {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 0.25rem;
  font-family: var(--font-heading);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

/* PENGALAMAN TIMELINE */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::after {
  content: '';
  position: absolute;
  width: 2px;
  background-color: var(--border-color);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -1px;
}

.timeline-item {
  padding: 10px 40px;
  position: relative;
  background-color: inherit;
  width: 50%;
  box-sizing: border-box;
}

.timeline-item::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  right: -8px;
  background-color: var(--bg-primary);
  border: 4px solid var(--accent);
  top: 36px;
  border-radius: 50%;
  z-index: 1;
  transition: background-color var(--transition-fast);
}

.left {
  left: 0;
}

.right {
  left: 50%;
}

.right::after {
  left: -8px;
}

.timeline-date-bubble {
  position: absolute;
  top: 32px;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--accent);
  background-color: var(--accent-light);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(var(--accent-rgb), 0.1);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}

.left .timeline-date-bubble {
  right: -210px;
  z-index: 2;
}

.right .timeline-date-bubble {
  left: -210px;
  z-index: 2;
}

.timeline-content {
  padding: 2rem;
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  position: relative;
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(var(--backdrop-blur));
  -webkit-backdrop-filter: blur(var(--backdrop-blur));
  transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.timeline-content:hover {
  transform: translateY(-4px);
  border-color: rgba(var(--accent-rgb), 0.4);
}

.timeline-content h3 {
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
}

.timeline-company {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.timeline-company i {
  color: var(--accent);
}

.timeline-project {
  font-size: 0.9rem;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.timeline-project strong {
  color: var(--text-primary);
}

.timeline-details {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}

.timeline-details ul {
  list-style: none;
  padding-left: 0;
}

.timeline-details li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.5rem;
}

.timeline-details li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
}

.timeline-details a {
  color: var(--accent);
  font-weight: 500;
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
}

.tag-badge {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-family: var(--font-heading);
  font-weight: 500;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.timeline-content:hover .tag-badge {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--text-muted);
}

/* KEAHLIAN / SKILLS SECTION */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

.skills-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(var(--backdrop-blur));
  -webkit-backdrop-filter: blur(var(--backdrop-blur));
}

.skills-category-title {
  font-size: 1.35rem;
  margin-bottom: 1.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
  border-bottom: 1.5px solid var(--border-color);
  padding-bottom: 0.75rem;
}

.skills-category-title i {
  color: var(--accent);
  font-size: 1.5rem;
}

.skills-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.skill-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.95rem;
}

.skill-name {
  font-weight: 600;
}

.skill-percent {
  font-weight: 500;
  color: var(--text-muted);
  font-family: var(--font-heading);
}

.skill-track {
  width: 100%;
  height: 8px;
  background-color: var(--bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.skill-bar {
  height: 100%;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
  width: 0%; /* Populated dynamically or by CSS */
  transition: width 1.5s cubic-bezier(0.1, 1, 0.1, 1);
}

/* Secondary skills list (badges representation) */
.skills-badges-wrapper {
  margin-top: 3rem;
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--card-shadow);
  text-align: center;
}

.skills-badges-title {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.badges-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

.skill-badge {
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
}

.skill-badge:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--text-muted);
  transform: translateY(-2px);
}

/* PROYEK / PORTFOLIO SECTION */
.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1.5px solid var(--border-color);
  padding: 0.6rem 1.3rem;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-heading);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.filter-btn:hover, .filter-btn.active {
  background-color: var(--text-primary);
  color: var(--bg-primary);
  border-color: transparent;
  box-shadow: var(--card-shadow);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.project-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(var(--backdrop-blur));
  -webkit-backdrop-filter: blur(var(--backdrop-blur));
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  height: 100%;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 25px 50px -20px rgba(0, 0, 0, 0.1);
  border-color: rgba(var(--accent-rgb), 0.3);
}

/* Card Visual Header instead of image */
.project-header-visual {
  height: 180px;
  background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.05) 0%, rgba(var(--accent-rgb), 0.15) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border-color);
}

.project-header-visual i {
  font-size: 4rem;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  z-index: 1;
  transition: transform var(--transition-normal);
}

.project-card:hover .project-header-visual i {
  transform: scale(1.15) rotate(5deg);
}

.project-header-visual::before {
  content: '';
  position: absolute;
  width: 150px;
  height: 150px;
  background-color: rgba(var(--accent-rgb), 0.1);
  border-radius: var(--radius-full);
  top: -50px;
  right: -50px;
  transition: transform var(--transition-normal);
}

.project-card:hover .project-header-visual::before {
  transform: scale(1.2);
}

.project-body {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  gap: 1rem;
}

.project-category {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.project-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.project-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex-grow: 1;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.tech-badge {
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.project-footer {
  padding: 1.5rem 2rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: rgba(var(--bg-secondary), 0.5);
}

.project-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

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

.project-link i {
  font-size: 0.75rem;
}

/* CERTIFICATIONS SECTION & EDUCATION */
.education-cert-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.block-title {
  font-size: 1.75rem;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.block-title i {
  color: var(--accent);
}

.cert-list, .edu-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.cert-card, .edu-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(var(--backdrop-blur));
  -webkit-backdrop-filter: blur(var(--backdrop-blur));
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  transition: all var(--transition-normal);
}

.cert-card:hover, .edu-card:hover {
  transform: translateY(-4px);
  border-color: rgba(var(--accent-rgb), 0.3);
}

.card-icon {
  background-color: var(--accent-light);
  color: var(--accent);
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  flex-shrink: 0;
}

.card-info {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.card-info h4 {
  font-size: 1.1rem;
  color: var(--text-primary);
}

.card-org {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.card-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* KONTAK SECTION */
.contact-wrapper {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 4rem;
  align-items: center;
}

.contact-info-block {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.contact-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-method-item {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.25rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.contact-method-item:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--accent);
  transform: translateX(5px);
}

.contact-method-icon {
  width: 46px;
  height: 46px;
  background-color: var(--accent-light);
  color: var(--accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.contact-method-content {
  display: flex;
  flex-direction: column;
}

.contact-method-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.contact-method-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.contact-socials {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-btn {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all var(--transition-normal);
}

.social-btn:hover {
  background: var(--accent-gradient);
  color: #ffffff;
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(var(--accent-rgb), 0.2);
}

/* Simplified Interactive Contact Card instead of forms */
.contact-action-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(var(--backdrop-blur));
  -webkit-backdrop-filter: blur(var(--backdrop-blur));
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
}

.contact-action-card i {
  font-size: 3.5rem;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.contact-action-card h3 {
  font-size: 1.5rem;
}

.contact-action-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 320px;
  margin: 0 auto;
}

/* FOOTER */
.footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 3.5rem 0;
  text-align: center;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.footer-slogan {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ========================================================================
   SCROLL REVEAL ANIMATIONS (Intersection Observer API)
   ======================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Delay utility helper (populated via JS or CSS child classes) */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }

/* ========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ======================================================================== */

@media (max-width: 1024px) {
  .hero-title {
    font-size: 3rem;
  }
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .section {
    padding: 5rem 0;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  /* Navigation Mobile */
  .hamburger {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: var(--bg-primary);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    padding: 2rem;
    transition: left var(--transition-normal);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
    border-top: 1px solid var(--border-color);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-actions {
    margin-right: 3rem; /* Leave space for hamburger */
  }

  /* Hero Mobile */
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }
  
  .hero-badge {
    align-self: center;
  }
  
  .hero-desc {
    margin: 0 auto;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .hero-image-frame {
    width: 260px;
    height: 260px;
  }
  
  /* About Mobile */
  .about-card {
    padding: 2rem;
  }
  
  .about-stats {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  /* Timeline Mobile (Stack layout) */
  .timeline::after {
    left: 31px;
  }
  
  .timeline-item {
    width: 100%;
    padding-left: 70px;
    padding-right: 0;
  }
  
  .timeline-item::after {
    left: 23px;
    right: auto;
  }
  
  .left {
    left: 0;
  }
  
  .right {
    left: 0;
  }
  
  .right::after {
    left: 23px;
  }
  
  .left .timeline-date-bubble,
  .right .timeline-date-bubble {
    position: relative;
    top: 0;
    left: 0;
    right: auto;
    display: inline-block;
    margin-bottom: 0.75rem;
  }
  
  /* Skills Mobile */
  .skills-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .skills-card {
    padding: 1.75rem;
  }
  
  /* Portfolio Mobile */
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  /* Education & Certs Mobile */
  .education-cert-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  /* Contact Mobile */
  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .contact-info-block {
    text-align: center;
  }
  
  .contact-methods {
    align-items: center;
  }
  
  .contact-method-item {
    width: 100%;
    max-width: 400px;
  }
  
  .contact-socials {
    justify-content: center;
  }
}