/* 
=========================================
  PROFESSIONAL DEVELOPER PORTFOLIO CSS
  DESIGN SYSTEM & LAYOUT ENGINE (STREAMLINED)
=========================================
*/

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

/* --- Custom Properties (Dark Theme Default) --- */
:root {
  /* Fonts */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Common Transition */
  --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.2s ease;

  /* Theme variables (Dark mode default) */
  --bg-primary: #08090e;
  --bg-secondary: #0f111a;
  --bg-card: rgba(17, 19, 31, 0.6);
  --bg-input: rgba(13, 15, 24, 0.8);
  --border-color: rgba(255, 255, 255, 0.07);
  --border-focus: rgba(99, 102, 241, 0.5);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-primary: #6366f1;
  /* Indigo */
  --accent-secondary: #a855f7;
  /* Purple */
  --accent-tertiary: #06b6d4;
  /* Cyan */
  --accent-glow: rgba(99, 102, 241, 0.15);

  --gradient-accent: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  --gradient-cyan: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  --gradient-text: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
  --gradient-glow: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(168, 85, 247, 0.15) 100%);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
  --shadow-inset: inset 0 1px 0 rgba(255, 255, 255, 0.05);

  --glass-bg: rgba(8, 9, 14, 0.75);
  --glass-blur: blur(16px);
  --scrollbar-thumb: #334155;
  --scrollbar-track: #0f111a;
}

[data-theme="light"] {
  /* Light Theme Variables */
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.8);
  --bg-input: #ffffff;
  --border-color: rgba(15, 23, 42, 0.08);
  --border-focus: rgba(79, 70, 229, 0.5);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;

  --accent-primary: #4f46e5;
  --accent-secondary: #7c3aed;
  --accent-tertiary: #0891b2;
  --accent-glow: rgba(79, 70, 229, 0.08);

  --gradient-accent: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  --gradient-cyan: linear-gradient(135deg, #0891b2 0%, #2563eb 100%);
  --gradient-text: linear-gradient(135deg, #0f172a 0%, #334155 100%);
  --gradient-glow: linear-gradient(135deg, rgba(79, 70, 229, 0.06) 0%, rgba(124, 58, 237, 0.06) 100%);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.1);
  --shadow-inset: inset 0 1px 0 rgba(255, 255, 255, 0.9);

  --glass-bg: rgba(248, 250, 252, 0.8);
  --glass-blur: blur(16px);
  --scrollbar-thumb: #cbd5e1;
  --scrollbar-track: #f1f5f9;
}

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

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

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  background-size: cover;
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.4s ease, color 0.4s ease;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 5px;
  border: 2px solid var(--scrollbar-track);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-primary);
}

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

ul {
  list-style: none;
}

img,
svg {
  max-width: 100%;
  display: block;
}

button,
input,
textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
}

section {
  padding: 90px 0;
  position: relative;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Section Typography & Accents --- */
.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-tag {
  font-family: var(--font-heading);
  text-transform: uppercase;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  font-weight: 700;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  margin-bottom: 10px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

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

.section-subtitle {
  color: var(--text-secondary);
  max-width: 550px;
  margin: 12px auto 0 auto;
  font-size: 1.02rem;
}

/* --- Header & Navigation --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-color);
  transition: background-color 0.4s ease, border-bottom 0.4s ease;
}

.header-active {
  box-shadow: var(--shadow-md);
  padding: 4px 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 75px;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  display: flex;
  align-items: center;
  gap: 6px;
}

.logo-dot {
  width: 7px;
  height: 7px;
  background: var(--gradient-accent);
  border-radius: 50%;
  display: inline-block;
}

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

.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
}

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

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

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

/* Actions Wrapper */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Theme Toggle Button */
.theme-toggle-btn {
  background: none;
  border: 1px solid var(--border-color);
  width: 42px;
  height: 42px;
  border-radius: 12px;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--text-primary);
  transition: var(--transition-smooth);
}

.theme-toggle-btn:hover {
  background: var(--bg-secondary);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: 0 0 15px var(--accent-glow);
}

.theme-toggle-btn svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  transition: var(--transition-smooth);
}

/* Hide sun in dark theme, hide moon in light theme */
.theme-toggle-btn .sun-icon {
  display: none;
}

.theme-toggle-btn .moon-icon {
  display: block;
}

[data-theme="light"] .theme-toggle-btn .sun-icon {
  display: block;
}

[data-theme="light"] .theme-toggle-btn .moon-icon {
  display: none;
}

/* Hamburger Menu Toggle */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 22px;
  height: 16px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1010;
}

.hamburger span {
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition-smooth);
}

/* --- Buttons & UI Elements --- */
.btn {
  font-family: var(--font-heading);
  font-weight: 600;
  padding: 11px 26px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  transition: var(--transition-smooth);
  font-size: 0.92rem;
}

.btn-primary {
  background: var(--gradient-accent);
  color: #ffffff;
  border: none;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
}

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

.btn-secondary:hover {
  border-color: var(--text-primary);
  background: rgba(255, 255, 255, 0.03);
  transform: translateY(-3px);
}

[data-theme="light"] .btn-secondary:hover {
  background: rgba(0, 0, 0, 0.03);
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 100px;
  padding-bottom: 50px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 40px;
}

.hero-tag {
  background: var(--accent-glow);
  color: var(--accent-primary);
  border: 1px solid rgba(99, 102, 241, 0.2);
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 20px;
}

.hero-pulse-dot {
  width: 7px;
  height: 7px;
  background-color: var(--accent-tertiary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(0.9);
    box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.7);
  }

  70% {
    transform: scale(1);
    box-shadow: 0 0 0 6px rgba(6, 182, 212, 0);
  }

  100% {
    transform: scale(0.9);
    box-shadow: 0 0 0 0 rgba(6, 182, 212, 0);
  }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 18px;
}

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

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 30px;
  max-width: 580px;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* Custom Photo Frame in Hero Section */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-photo-wrapper {
  position: relative;
  width: 290px;
  height: 380px;
  z-index: 2;
}

.hero-photo-glowing-back {
  position: absolute;
  top: 15px;
  left: 15px;
  width: 100%;
  height: 100%;
  background: var(--gradient-accent);
  border-radius: 24px;
  filter: blur(15px);
  opacity: 0.55;
  z-index: 1;
  transition: var(--transition-smooth);
}

.hero-photo-container {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 24px;
  overflow: hidden;
  border: 2px solid var(--border-color);
  z-index: 2;
  box-shadow: var(--shadow-lg);
  background: var(--bg-secondary);
  transition: var(--transition-smooth);
}

.hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.hero-photo-wrapper:hover .hero-photo-container {
  transform: translateY(-8px) scale(1.02);
  border-color: var(--accent-primary);
  box-shadow: 0 20px 45px rgba(99, 102, 241, 0.25);
}

.hero-photo-wrapper:hover .hero-photo-glowing-back {
  transform: translateY(-4px) scale(1.05);
  opacity: 0.85;
  filter: blur(25px);
}

.hero-photo-wrapper:hover .hero-photo {
  transform: scale(1.04);
}

/* --- About Me Section --- */
.about-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 50px;
  align-items: center;
}

/* Code Terminal Component inside About section */
.about-terminal-wrapper {
  position: relative;
  padding: 10px;
}

.about-terminal-wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-glow);
  filter: blur(15px);
  opacity: 0.2;
  z-index: 1;
}

.about-terminal {
  position: relative;
  z-index: 2;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--shadow-lg);
  font-family: 'Consolas', 'Fira Code', 'Courier New', monospace;
  font-size: 0.88rem;
  text-align: left;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  transition: var(--transition-smooth);
}

.about-terminal:hover {
  border-color: var(--accent-primary);
  box-shadow: 0 12px 30px rgba(99, 102, 241, 0.08);
}

.about-terminal-header {
  display: flex;
  gap: 6px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-red {
  background: #ef4444;
}

.dot-yellow {
  background: #eab308;
}

.dot-green {
  background: #22c55e;
}

.terminal-title {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-left: 10px;
  font-weight: 500;
}

.terminal-line {
  margin-bottom: 5px;
  line-height: 1.45;
  color: var(--text-secondary);
}

.t-keyword {
  color: #f43f5e;
  font-weight: bold;
}

.t-type {
  color: #06b6d4;
}

.t-var {
  color: #f8fafc;
}

.t-string {
  color: #10b981;
}

.t-number {
  color: #f59e0b;
}

.t-comment {
  color: var(--text-muted);
  font-style: italic;
}

/* Quick metrics inside About */
.about-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 15px;
  margin-top: 24px;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 16px 12px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  transition: var(--transition-smooth);
}

.metric-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-md);
}

.metric-val {
  font-family: var(--font-heading);
  font-size: 1.7rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
}

.metric-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 2px;
}

.about-info h3 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.about-info p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 20px;
  text-align: justify;
}

.about-bullet-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.about-bullet-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.about-bullet-icon {
  color: var(--accent-primary);
  flex-shrink: 0;
  width: 18px;
  height: 18px;
}

/* --- Skills Section --- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.skill-category-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 26px;
  box-shadow: var(--shadow-md);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  transition: var(--transition-smooth);
  position: relative;
}

.skill-category-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-primary);
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.1);
}

.skill-category-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.skill-category-icon {
  background: var(--accent-glow);
  color: var(--accent-primary);
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-shrink: 0;
  border: 1px solid rgba(99, 102, 241, 0.15);
}

.skill-category-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.skill-category-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
}

.skills-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-pill {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 5px 12px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition-fast);
}

.skill-pill:hover {
  border-color: var(--accent-primary);
  color: var(--text-primary);
  background: var(--accent-glow);
  transform: scale(1.04);
}

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

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  position: relative;
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-primary);
  box-shadow: 0 12px 30px rgba(99, 102, 241, 0.12);
}

.project-visual {
  height: 180px;
  /* background: var(--bg-secondary); */
  background: var(--bg-primary) url('../images/project.png') no-repeat center center fixed;
  border-bottom: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

.project-visual-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.12;
  background: radial-gradient(circle at 30% 20%, var(--accent-primary) 0%, transparent 60%),
    radial-gradient(circle at 70% 80%, var(--accent-secondary) 0%, transparent 60%);
  transition: var(--transition-smooth);
}

.project-card:hover .project-visual-bg {
  transform: scale(1.15);
  opacity: 0.22;
}

.project-visual-icon {
  position: relative;
  z-index: 2;
  color: var(--accent-primary);
  transition: var(--transition-smooth);
}

.project-visual-icon svg {
  width: 50px;
  height: 50px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
}

.project-card:hover .project-visual-icon {
  transform: scale(1.08) rotate(3deg);
  color: var(--accent-secondary);
}

.project-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.project-tag {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.15);
  color: var(--accent-primary);
  padding: 2px 8px;
  border-radius: 5px;
}

[data-theme="light"] .project-tag {
  background: rgba(79, 70, 229, 0.05);
}

.project-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.project-description {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-bottom: 20px;
  flex-grow: 1;
  text-align: justify;
}

.project-links {
  display: flex;
  gap: 14px;
  margin-top: auto;
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
}

.project-link {
  font-size: 0.88rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--text-secondary);
}

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

.project-link svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.5;
}

/* --- Experience Section --- */
.experience-timeline {
  position: relative;
  max-width: 850px;
  margin: 0 auto;
}

.experience-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  inset-inline-start: 28px;
  height: 100%;
  width: 2px;
  background: var(--border-color);
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
  padding-inline-start: 70px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-node {
  position: absolute;
  top: 0;
  inset-inline-start: 18px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 4px solid var(--accent-primary);
  box-shadow: 0 0 0 5px var(--accent-glow);
  z-index: 2;
  transition: var(--transition-smooth);
}

.timeline-item:hover .timeline-node {
  border-color: var(--accent-secondary);
  box-shadow: 0 0 0 8px rgba(168, 85, 247, 0.15);
  transform: scale(1.1);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 18px;
  padding: 26px;
  box-shadow: var(--shadow-md);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  transition: var(--transition-smooth);
}

.timeline-item:hover .timeline-card {
  border-color: var(--accent-primary);
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.06);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
}

.timeline-role-info h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
}

.timeline-company {
  font-weight: 600;
  color: var(--accent-primary);
  font-size: 0.95rem;
  margin-top: 2px;
  display: inline-block;
}

.timeline-date {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 5px 12px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
}

.timeline-bullet-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.timeline-bullet-item {
  position: relative;
  padding-inline-start: 18px;
  color: var(--text-secondary);
  font-size: 0.94rem;
}

.timeline-bullet-item::before {
  content: '→';
  position: absolute;
  inset-inline-start: 0;
  color: var(--accent-primary);
  font-weight: 700;
}

/* --- Services Section --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 32px 26px;
  box-shadow: var(--shadow-md);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  transition: var(--transition-smooth);
  text-align: left;
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-primary);
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.1);
}

.service-icon {
  background: var(--accent-glow);
  color: var(--accent-primary);
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 20px;
  border: 1px solid rgba(99, 102, 241, 0.15);
  transition: var(--transition-smooth);
}

.service-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.service-card:hover .service-icon {
  background: var(--gradient-accent);
  color: #ffffff;
  transform: rotate(3deg) scale(1.03);
}

.service-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.service-description {
  color: var(--text-secondary);
  font-size: 0.92rem;
}

/* --- Career Objective Section --- */
.objective-bg {
  background: linear-gradient(to right, var(--bg-secondary), var(--bg-primary));
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.objective-container {
  max-width: 750px;
  margin: 0 auto;
  text-align: center;
  padding: 35px 24px;
  position: relative;
}

.objective-quote-icon {
  color: var(--accent-primary);
  opacity: 0.15;
  width: 60px;
  height: 60px;
  margin: 0 auto 16px auto;
}

.objective-text {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-primary);
  position: relative;
  letter-spacing: -0.015em;
  margin-bottom: 20px;
}

.objective-author {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-primary);
}

/* --- Contact Section --- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 50px;
  align-items: flex-start;
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 28px;
  box-shadow: var(--shadow-md);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.contact-card-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.contact-detail-item {
  display: flex;
  align-items: center;
  gap: 14px;
}

.contact-icon-wrapper {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--accent-primary);
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-shrink: 0;
}

.contact-icon-wrapper svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.contact-detail-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.contact-detail-value {
  font-weight: 500;
  font-size: 0.95rem;
}

/* Social Media Channels */
.socials-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.social-links {
  display: flex;
  gap: 14px;
}

.social-link {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: var(--transition-smooth);
}

.social-link:hover {
  background: var(--accent-primary);
  color: #ffffff;
  border-color: var(--accent-primary);
  transform: translateY(-4px);
  box-shadow: 0 6px 15px rgba(99, 102, 241, 0.25);
}

.social-link svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* Contact Form Card */
.contact-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 32px;
  box-shadow: var(--shadow-md);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.form-group-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.form-group {
  margin-bottom: 16px;
}

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

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-secondary);
}

.form-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 0.92rem;
  transition: var(--transition-smooth);
}

.form-input:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
  background: var(--bg-secondary);
}

textarea.form-input {
  resize: vertical;
  min-height: 130px;
}

.submit-btn-wrapper {
  display: flex;
  justify-content: flex-end;
}

.submit-btn {
  width: 100%;
  border: none;
}

/* Toast Message Notification */
.form-status {
  margin-top: 14px;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.88rem;
  display: none;
  font-weight: 500;
  text-align: center;
}

.form-status.success {
  display: block;
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.form-status.error {
  display: block;
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

/* --- Footer --- */
.footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 35px 0;
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

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

.footer-back-to-top {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
}

.footer-back-to-top:hover {
  color: var(--accent-primary);
}

.footer-back-to-top svg {
  width: 12px;
  height: 12px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.5;
  transition: var(--transition-fast);
}

.footer-back-to-top:hover svg {
  transform: translateY(-3px);
}

/* --- Scroll Reveal Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.delay-1 {
  transition-delay: 0.1s;
}

.delay-2 {
  transition-delay: 0.2s;
}

.delay-3 {
  transition-delay: 0.3s;
}

/* --- Responsive Media Queries --- */
@media (max-width: 992px) {
  section {
    padding: 70px 0;
  }

  .hero-title {
    font-size: 2.8rem;
  }

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

  .about-terminal-wrapper {
    max-width: 500px;
    margin: 0 auto;
  }

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

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    inset-inline-end: -100%;
    width: 260px;
    height: 100vh;
    background-color: var(--bg-secondary);
    border-inline-start: 1px solid var(--border-color);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 36px;
    transition: var(--transition-smooth);
    z-index: 1005;
  }

  .nav-menu.open {
    inset-inline-end: 0;
  }

  .nav-link {
    font-size: 1.15rem;
  }

  .hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 5px);
  }

  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
  }

  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

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

  .hero-visual {
    order: -1;
  }

  .about-bullet-list {
    grid-template-columns: 1fr;
  }

  .form-group-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .experience-timeline::before {
    inset-inline-start: 18px;
  }

  .timeline-node {
    inset-inline-start: 9px;
  }

  .timeline-item {
    padding-inline-start: 40px;
  }

  .timeline-card {
    padding: 20px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.2rem;
  }

  .section-title {
    font-size: 1.85rem;
  }

  .about-metrics {
    grid-template-columns: 1fr;
  }

  .btn {
    width: 100%;
  }

  .timeline-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .timeline-date {
    margin-top: 6px;
  }

  .contact-form-card {
    padding: 20px;
  }
}
/* Certification section */
.certification-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.certification-item {
  background: var(--card-bg, #1a1a1a);
  padding: 1rem;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cert-img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  transition: transform 0.3s ease;
}

.cert-img:hover {
  transform: scale(1.05);
}