/* ===================================================
   Global Styles & CSS Variables
=================================================== */
:root {
  /* Light Theme */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-translucent: rgba(255, 255, 255, 0.7);
  --border-color: rgba(226, 232, 240, 0.8);
  --border-focus: #6366f1;

  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;

  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #e0e7ff;
  --primary-glow: rgba(79, 70, 229, 0.25);

  --accent: #06b6d4;
  --accent-pink: #ec4899;

  --gradient-main: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #06b6d4 100%);
  --gradient-card: linear-gradient(180deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 250, 252, 0.9) 100%);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.07), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 35px -10px rgba(79, 70, 229, 0.12), 0 10px 20px -5px rgba(0, 0, 0, 0.04);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 9999px;

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  /* Dark Theme */
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.85);
  --bg-translucent: rgba(17, 24, 39, 0.7);
  --border-color: rgba(31, 41, 55, 0.8);
  --border-focus: #818cf8;

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

  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-light: rgba(99, 102, 241, 0.18);
  --primary-glow: rgba(99, 102, 241, 0.35);

  --accent: #22d3ee;
  --accent-pink: #f472b6;

  --gradient-main: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #22d3ee 100%);
  --gradient-card: linear-gradient(180deg, rgba(24, 33, 53, 0.85) 0%, rgba(15, 23, 42, 0.85) 100%);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 35px -10px rgba(99, 102, 241, 0.2), 0 10px 20px -5px rgba(0, 0, 0, 0.3);
}

/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
  color: var(--text-main);
  background-color: var(--bg-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
}

body {
  position: relative;
  overflow-x: hidden;
  min-height: 100vh;
  line-height: 1.6;
}

/* Background Animated Blobs */
.blob {
  position: absolute;
  filter: blur(100px);
  z-index: -1;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0.45;
  animation: float 20s infinite alternate ease-in-out;
}

.blob-1 {
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, #6366f1 0%, rgba(99, 102, 241, 0) 70%);
  top: -100px;
  left: -120px;
}

.blob-2 {
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, #06b6d4 0%, rgba(6, 182, 212, 0) 70%);
  top: 400px;
  right: -140px;
  animation-delay: -7s;
}

@keyframes float {
  0% { transform: translateY(0px) rotate(0deg) scale(1); }
  50% { transform: translateY(60px) rotate(180deg) scale(1.1); }
  100% { transform: translateY(-40px) rotate(360deg) scale(0.95); }
}

/* Container */
.container {
  width: 90%;
  max-width: 1140px;
  margin: 0 auto;
}

/* Section Common */
.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 55px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--primary);
  background-color: var(--primary-light);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
  text-transform: uppercase;
}

.section-title {
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 14px;
}

.section-divider {
  width: 50px;
  height: 4px;
  background: var(--gradient-main);
  border-radius: var(--radius-full);
  margin: 0 auto 16px;
}

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

/* ===================================================
   Navigation Bar
=================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 72px;
  background-color: var(--bg-translucent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-sm);
  height: 64px;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  width: 90%;
  max-width: 1140px;
  margin: 0 auto;
}

.logo {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text-main);
}

.logo-badge {
  font-family: 'Outfit', sans-serif;
  font-size: 0.72rem;
  letter-spacing: 1px;
  background: var(--gradient-main);
  color: #fff;
  padding: 3px 8px;
  border-radius: 6px;
}

.logo-name {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  gap: 26px;
}

.nav-link {
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 4px;
  position: relative;
}

.nav-link i {
  font-size: 0.88rem;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-main);
  border-radius: 2px;
}

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

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background-color: var(--bg-card);
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: var(--transition);
  position: relative;
}

.icon-btn:hover {
  background-color: var(--primary-light);
  color: var(--primary);
  transform: translateY(-2px);
  border-color: var(--primary);
}

.btn-tooltip {
  position: absolute;
  bottom: -32px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--text-main);
  color: var(--bg-primary);
  font-size: 0.72rem;
  white-space: nowrap;
  padding: 3px 8px;
  border-radius: 4px;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.icon-btn:hover .btn-tooltip {
  opacity: 1;
}

.hamburger-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.hamburger-btn span {
  width: 22px;
  height: 2px;
  background-color: var(--text-main);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===================================================
   Hero Section
=================================================== */
.hero-section {
  padding-top: 150px;
  padding-bottom: 90px;
  min-height: 88vh;
  display: flex;
  align-items: center;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 50px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  box-shadow: var(--shadow-sm);
  margin-bottom: 22px;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.25);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 7px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 14px;
  letter-spacing: -0.5px;
}

.highlight-text {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 18px;
  min-height: 38px;
}

.typing-text {
  color: var(--primary);
  border-right: 2px solid var(--primary);
  padding-right: 4px;
  animation: blink 0.75s step-end infinite;
}

@keyframes blink {
  from, to { border-color: transparent; }
  50% { border-color: var(--primary); }
}

.hero-description {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 34px;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.98rem;
  font-weight: 600;
  padding: 13px 26px;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background: var(--gradient-main);
  color: #fff;
  box-shadow: 0 10px 20px -6px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 24px -4px var(--primary-glow);
}

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

.btn-block {
  width: 100%;
}

.social-links {
  display: flex;
  gap: 12px;
}

.social-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 1.15rem;
  text-decoration: none;
  transition: var(--transition);
}

.social-icon:hover {
  color: var(--primary);
  background-color: var(--primary-light);
  border-color: var(--primary);
  transform: translateY(-3px);
}

/* Hero Profile Card */
.hero-image-wrap {
  display: flex;
  justify-content: center;
}

.profile-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 38px 30px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(12px);
  position: relative;
  max-width: 330px;
  width: 100%;
  transition: var(--transition);
}

.profile-card:hover {
  transform: translateY(-6px);
}

.profile-avatar-frame {
  width: 130px;
  height: 130px;
  margin: 0 auto 20px;
  border-radius: 50%;
  padding: 4px;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
}

.avatar-placeholder {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  color: var(--primary);
}

.profile-card-name {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.profile-card-role {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.profile-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.badge {
  background-color: var(--primary-light);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

/* ===================================================
   About Section
=================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 36px;
  align-items: stretch;
}

.about-info-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 34px;
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(10px);
}

.about-info-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--text-main);
}

.keyword-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.keyword-list li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.keyword-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.keyword-list strong {
  display: block;
  font-size: 1.05rem;
  margin-bottom: 4px;
  color: var(--text-main);
}

.keyword-list p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.about-stats-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.stat-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

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

.stat-icon {
  font-size: 1.8rem;
  color: var(--primary);
  margin-bottom: 12px;
}

.stat-number {
  font-size: 1.7rem;
  font-weight: 800;
  font-family: 'Outfit', sans-serif;
  color: var(--text-main);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ===================================================
   Skills Section
=================================================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.skill-category {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.skill-category:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
}

.cat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.cat-header i {
  font-size: 1.5rem;
  color: var(--primary);
}

.cat-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

.skill-items {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 7px;
  color: var(--text-main);
}

.progress-bar {
  width: 100%;
  height: 8px;
  background-color: var(--primary-light);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--gradient-main);
  border-radius: var(--radius-full);
  transition: width 1s ease-in-out;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tool-tag {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 9px 15px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.tool-tag i {
  color: var(--primary);
}

.tool-tag:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

/* ===================================================
   Projects Section
=================================================== */
.filter-buttons {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 9px 22px;
  border-radius: var(--radius-full);
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover, .filter-btn.active {
  background-color: var(--primary);
  border-color: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px var(--primary-glow);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.project-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.project-thumb {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.project-thumb-1 {
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
}

.project-thumb-2 {
  background: linear-gradient(135deg, #10b981 0%, #047857 100%);
}

.project-thumb-3 {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.thumb-icon {
  font-size: 3.8rem;
  color: rgba(255, 255, 255, 0.85);
  transition: var(--transition);
}

.project-card:hover .thumb-icon {
  transform: scale(1.15);
}

.thumb-overlay {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
}

.project-badge {
  background-color: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

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

.project-title {
  font-size: 1.18rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-main);
}

.project-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 18px;
  flex-grow: 1;
}

.project-techs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.project-techs span {
  font-size: 0.75rem;
  font-weight: 600;
  background-color: var(--primary-light);
  color: var(--primary);
  padding: 3px 9px;
  border-radius: 4px;
}

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

.project-link {
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.project-link.secondary {
  color: var(--text-muted);
}

.project-link:hover {
  opacity: 0.8;
  transform: translateX(3px);
}

/* ===================================================
   Timeline Section
=================================================== */
.timeline {
  max-width: 760px;
  margin: 0 auto;
  position: relative;
  padding: 20px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 20px;
  width: 2px;
  background: var(--border-color);
}

.timeline-item {
  position: relative;
  padding-left: 55px;
  margin-bottom: 40px;
}

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

.timeline-dot {
  position: absolute;
  top: 4px;
  left: 13px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--bg-primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.timeline-date {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
  text-transform: uppercase;
}

.timeline-content {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  box-shadow: var(--shadow-sm);
}

.timeline-content h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.timeline-content p {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* ===================================================
   Contact Section
=================================================== */
.contact-wrapper {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 36px;
  align-items: flex-start;
}

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

.contact-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 22px;
  display: flex;
  align-items: center;
  gap: 18px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.contact-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.contact-card h4 {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.contact-card p {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
}

.contact-form-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 34px;
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 7px;
  color: var(--text-main);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

/* ===================================================
   Footer
=================================================== */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  text-align: center;
}

.footer-content p {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.footer-sub {
  font-size: 0.82rem;
  color: var(--text-light);
  margin-top: 6px;
}

/* ===================================================
   Modal (Profile Quick Edit)
=================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-box {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 480px;
  width: 90%;
  padding: 28px;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px) scale(0.96);
  transition: var(--transition);
}

.modal-overlay.active .modal-box {
  transform: translateY(0) scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.modal-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.6rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
  transition: var(--transition);
}

.modal-close:hover {
  color: var(--text-main);
}

.modal-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 18px;
  line-height: 1.45;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
}

/* ===================================================
   Toast Notification
=================================================== */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background-color: var(--text-main);
  color: var(--bg-primary);
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  z-index: 3000;
  opacity: 0;
  transition: transform 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.35s ease;
  pointer-events: none;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* Back to Top */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background-color: var(--primary);
  color: #fff;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 900;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* ===================================================
   Responsive Design
=================================================== */
@media (max-width: 992px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

  .status-pill {
    margin: 0 auto 20px;
  }

  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }

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

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

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

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

  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-wrapper {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.4rem;
  }

  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 20px;
    gap: 16px;
    box-shadow: var(--shadow-md);
    transform: translateY(-120%);
    transition: transform 0.3s ease-in-out;
  }

  .nav-links.open {
    transform: translateY(0);
  }

  .hamburger-btn {
    display: flex;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }
}