/* ---------------------------------------------------------
   Design Tokens & Variables
   --------------------------------------------------------- */
:root {
  /* Colors */
  --bg-main: #1e2228;
  --bg-sidebar: #15181c;
  --accent: #20c997;
  --accent-hover: #1ba87e;
  --text-primary: #ffffff;
  --text-secondary: #a0a5aa;
  --border-color: #2a2e35;

  /* Spacing scale */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  /* Border radius scale */
  --radius-sm: 5px;
  --radius-md: 8px;
  --radius-lg: 10px;
  --radius-xl: 20px;

  /* Transitions */
  --transition-fast: 140ms ease;
  --transition-normal: 0.3s ease;

  /* Shadows */
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.3);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

html,
body {
  max-width: 100vw;
  overflow-x: hidden;
}

html {
  scroll-behavior: smooth;
  scroll-snap-type: y proximity;
}

body {
  background-color: var(--bg-main);
  color: var(--text-primary);
  display: flex;
  min-height: 100vh;
  width: 100%;
}

/* ---------------------------------------------------------
   Layout & Main Structure
   --------------------------------------------------------- */
.page-section,
.hero {
  scroll-snap-align: start;
}

.main-content {
  margin-left: 280px;
  width: calc(100% - 280px);
}

.page-section {
  padding: var(--spacing-2xl);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-xl);
  color: var(--text-primary);
  position: relative;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 50px;
  height: 3px;
  background-color: var(--accent);
}

.section-content p,
.hero-text p,
.timeline-item p,
.card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

.section-content p {
  max-width: 800px;
}

.hero-text p {
  line-height: 1.8;
}

/* ---------------------------------------------------------
   Sidebar & Navigation
   --------------------------------------------------------- */
.sidebar {
  width: 280px;
  background-color: var(--bg-sidebar);
  padding: var(--spacing-lg) var(--spacing-md);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100%;
  border-right: 1px solid var(--border-color);
  transition: all var(--transition-normal);
  z-index: 100;
}

.profile {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.profile-img {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-xl);
  object-fit: cover;
  margin-bottom: var(--spacing-sm);
  background-color: var(--border-color);
}

.name {
  font-size: 1.2rem;
  font-weight: 500;
}

.nav-menu {
  flex-grow: 1;
}

.nav-menu ul {
  list-style: none;
}

.nav-menu li {
  margin-bottom: var(--spacing-xs);
}

.nav-menu a {
  display: flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: var(--transition-normal);
}

.nav-menu a i {
  width: 24px;
  margin-right: 10px;
  font-size: 1.1rem;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--accent);
  background-color: rgba(32, 201, 151, 0.1);
}

/* ---------------------------------------------------------
   Social Links
   --------------------------------------------------------- */
.social-links {
  display: flex;
  justify-content: space-between;
  margin-top: auto;
}

.social-links a {
  color: var(--text-secondary);
  background-color: var(--bg-main);
  width: 35px;
  height: 35px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: var(--transition-normal);
}

.social-links a:hover {
  color: var(--text-primary);
  background-color: var(--accent);
}

/* ---------------------------------------------------------
   Hero Section
   --------------------------------------------------------- */
.hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-2xl);
  min-height: 100dvh;
  padding: 0 var(--spacing-2xl);
}

.hero-text {
  flex: 1;
}

.hero-text h2 {
  font-size: 3.5rem;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

.hero-text p {
  margin-bottom: var(--spacing-lg);
  font-size: 1.1rem;
  max-width: 600px;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
}

.stats {
  display: flex;
  gap: var(--spacing-xl);
}

.stat-item h3 {
  font-size: 2rem;
  margin-bottom: 0.3rem;
}

.stat-item h3,
.highlight,
.badge i,
.timeline-item::before,
.achievement-list li::before {
  color: var(--accent);
}

.stat-item p {
  font-size: 0.9rem;
  margin-bottom: 0;
  color: var(--text-secondary);
}

.hero-image-container {
  flex: 1;
  position: relative;
  max-width: 500px;
  width: 100%;
}

.hero-img {
  width: 100%;
  border-radius: var(--radius-xl);
  display: block;
}

/* ---------------------------------------------------------
   Buttons
   --------------------------------------------------------- */
.btn {
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-normal);
  border: none;
  cursor: pointer;
}

.btn-primary {
  background-color: var(--accent);
  color: #000;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
}

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

.btn-secondary:hover {
  border-color: var(--text-primary);
}

/* ---------------------------------------------------------
   Badges
   --------------------------------------------------------- */
.badge {
  position: absolute;
  background-color: var(--border-color);
  padding: 0.6rem var(--spacing-sm);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-lg);
}

.badge-1 {
  top: 20%;
  left: -20px;
}

.badge-2 {
  bottom: 30%;
  right: -20px;
}

.badge-3 {
  bottom: 10%;
  left: 20px;
}

/* ---------------------------------------------------------
   Timeline (Experience & Education)
   --------------------------------------------------------- */
.timeline-item {
  border-left: 2px solid var(--border-color);
  padding-left: 20px;
  margin-bottom: var(--spacing-lg);
  position: relative;
  max-width: 800px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 0;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--accent);
}

.timeline-item h4,
.card h4 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.card h4 {
  margin-bottom: var(--spacing-lg);
}

.timeline-item h5 {
  margin-bottom: var(--spacing-lg);
  font-weight: 400;
  font-size: 0.9rem;
  color: var(--accent);
}

.card p {
  margin-bottom: var(--spacing-md);
}

/* ---------------------------------------------------------
   Cards (Projects)
   --------------------------------------------------------- */
.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: var(--spacing-lg);
}

.card {
  background-color: var(--bg-sidebar);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  transition: transform var(--transition-normal);
}

.card:hover {
  transform: translateY(-5px);
}

/* ---------------------------------------------------------
   Lists (Achievements)
   --------------------------------------------------------- */
.achievement-list {
  list-style: none;
  color: var(--text-secondary);
  max-width: 800px;
}

.achievement-list li {
  margin-bottom: var(--spacing-sm);
  padding-left: var(--spacing-md);
  position: relative;
  line-height: 1.6;
}

.achievement-list li::before {
  content: "▹";
  position: absolute;
  left: 0;
}

.achievement-list strong {
  color: var(--text-primary);
}

/* ---------------------------------------------------------
   Forms
   --------------------------------------------------------- */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  max-width: 600px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: var(--spacing-sm);
  background-color: var(--bg-sidebar);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  font-family: inherit;
  transition: border-color var(--transition-normal);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.contact-form button {
  align-self: flex-start;
  cursor: pointer;
}

/* ---------------------------------------------------------
   Tooltips
   --------------------------------------------------------- */
.redacted-company {
  font-weight: 600;
}

.tooltip-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
  margin: 0 4px;
}

.tooltip-trigger {
  width: 18px;
  height: 18px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid #bdbdbd;
  background: transparent;
  color: #444;
  cursor: help;
  font-size: 12px;
  line-height: 1;
}

.tooltip-content {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  width: min(280px, 85vw);
  background: rgba(15, 15, 15, 0.98);
  color: #fff;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  visibility: hidden;
  opacity: 0;
  transition:
    opacity var(--transition-fast),
    transform var(--transition-fast);
  z-index: 999;
}

.tooltip-wrap:hover .tooltip-content,
.tooltip-trigger:focus + .tooltip-content,
.tooltip-wrap.tooltip-open .tooltip-content {
  visibility: visible;
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.tooltip-content a {
  color: #b9dbff;
  text-decoration: underline;
}

/* ---------------------------------------------------------
   Mobile Navigation & Responsive Design
   --------------------------------------------------------- */
.mobile-nav-toggle {
  display: none;
  position: fixed;
  top: var(--spacing-md);
  right: var(--spacing-md);
  z-index: 1000;
  background-color: var(--accent);
  color: #000;
  border: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1.2rem;
}

@media (max-width: 1024px) {
  .hero {
    flex-direction: column;
    text-align: center;
    justify-content: center;
  }

  .hero-text p {
    margin: 0 auto var(--spacing-lg);
  }

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

  .badge {
    display: none;
  }
}

@media (max-width: 768px) {
  .main-content {
    margin-left: 0;
    width: 100%;
  }

  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.active {
    transform: translateX(0);
  }

  .mobile-nav-toggle {
    display: block;
  }

  .hero,
  .page-section {
    padding: 6rem var(--spacing-md) 2rem;
    justify-content: flex-start;
  }

  .section-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
  }

  .hero-text h2 {
    font-size: 2.2rem;
  }
}