/* ===== GOOGLE FONTS ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Fira+Code:wght@400;500&display=swap');

/* ===== CSS VARIABLES ===== */
:root {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.7);
  --bg-card-hover: rgba(255, 255, 255, 1);

  --accent-teal: #0d9488;
  --accent-teal-light: #14b8a6;
  --accent-cyan: #06b6d4;
  --accent-cyan-light: #22d3ee;
  --accent-emerald: #10b981;

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

  --border-subtle: rgba(13, 148, 136, 0.1);
  --border-accent: rgba(13, 148, 136, 0.3);

  --glow-teal: 0 0 40px rgba(13, 148, 136, 0.1);
  --glow-cyan: 0 0 40px rgba(6, 182, 212, 0.08);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;

  --transition-fast: 0.18s ease;
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

  --nav-height: 72px;
  --max-width: 1200px;
}

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

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

body {
  font-family: 'Inter', system-ui, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ===== GRID BACKGROUND (DOTTED) ===== */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(#cbd5e1 0.8px, transparent 0.8px);
  background-size: 32px 32px;
  opacity: 0.5;
  pointer-events: none;
  z-index: 0;
}

/* ===== AMBIENT GLOWS ===== */
body::after {
  content: '';
  position: fixed;
  top: -10%;
  right: -5%;
  width: 50vw;
  height: 50vh;
  background: radial-gradient(ellipse at center,
    rgba(13, 148, 136, 0.08) 0%,
    rgba(6, 182, 212, 0.04) 50%,
    transparent 70%);
  pointer-events: none;
  z-index: 0;
  filter: blur(80px);
  animation: ambientPulse 12s ease-in-out infinite alternate;
}

@keyframes ambientPulse {
  0%   { opacity: 0.4; transform: translate(0, 0) scale(1); }
  100% { opacity: 0.8;   transform: translate(-10%, 10%) scale(1.2); }
}

/* ===== UTILITY ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

a {
  color: inherit;
  text-decoration: none;
}

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

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  transition: background var(--transition-smooth), backdrop-filter var(--transition-smooth);
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  transition: opacity var(--transition-fast);
}

.nav-logo:hover { opacity: 0.8; }

.nav-logo-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--accent-teal), var(--accent-cyan));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  box-shadow: var(--glow-teal);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-links a {
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: var(--bg-card);
}

.nav-links a.active {
  color: var(--accent-teal-light);
}

.nav-cta {
  padding: 7px 16px !important;
  background: linear-gradient(135deg, var(--accent-teal), var(--accent-teal-light)) !important;
  color: #fff !important;
  border-radius: var(--radius-sm) !important;
  font-weight: 600 !important;
  transition: opacity var(--transition-fast), transform var(--transition-fast) !important;
}

.nav-cta:hover {
  opacity: 0.85 !important;
  transform: translateY(-1px) !important;
  background: none !important;
}

/* Mobile menu */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  border: none;
  background: none;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: var(--transition-smooth);
}

@media (max-width: 680px) {
  .nav-hamburger { display: flex; }
  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 16px;
    gap: 4px;
    border-bottom: 1px solid var(--border-subtle);
    transform: translateY(-120%);
    transition: transform var(--transition-smooth);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; width: 100%; padding: 10px 14px; }
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(124, 58, 237, 0.12);
  border: 1px solid rgba(124, 58, 237, 0.25);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent-teal-light);
  margin-bottom: 28px;
  animation: fadeSlideUp 0.6s ease both;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-emerald);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-emerald);
  animation: blink 2s infinite;
}

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

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  animation: fadeSlideUp 0.6s 0.1s ease both;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent-teal-light) 0%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: clamp(1rem, 2.5vw, 1.18rem);
  color: var(--text-secondary);
  max-width: 560px;
  margin-bottom: 40px;
  animation: fadeSlideUp 0.6s 0.2s ease both;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeSlideUp 0.6s 0.3s ease both;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: linear-gradient(135deg, var(--accent-teal), var(--accent-teal-light));
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: opacity var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.3);
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.4);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--bg-card);
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-2px);
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.75rem;
  animation: scrollBounce 2s infinite;
}

.hero-scroll svg { opacity: 0.5; }

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ===== SECTIONS ===== */
.section {
  padding: 80px 0;
  position: relative;
  z-index: 1;
}

.section-header {
  margin-bottom: 48px;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.section-subtitle {
  margin-top: 12px;
  color: var(--text-secondary);
  max-width: 500px;
  font-size: 0.95rem;
}

/* ===== CARDS ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: background var(--transition-smooth), border-color var(--transition-smooth), transform var(--transition-smooth), box-shadow var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.04), rgba(6, 182, 212, 0.02));
  opacity: 0;
  transition: opacity var(--transition-smooth);
  border-radius: inherit;
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(13, 148, 136, 0.08), var(--glow-teal);
}

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

/* ===== PROJECT CARDS ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

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

.project-card-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.2), rgba(6, 182, 212, 0.1));
  border: 1px solid rgba(124, 58, 237, 0.25);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 18px;
}

.project-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.project-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 20px;
}

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

.tag {
  padding: 3px 10px;
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(124, 58, 237, 0.2);
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--accent-teal-light);
  font-family: 'Fira Code', monospace;
}

.tag.cyan {
  background: rgba(6, 182, 212, 0.1);
  border-color: rgba(6, 182, 212, 0.2);
  color: var(--accent-cyan-light);
}

.tag.emerald {
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.2);
  color: #34d399;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent-teal-light);
  margin-top: auto;
  transition: gap var(--transition-fast), color var(--transition-fast);
}

.card-link:hover {
  gap: 10px;
  color: var(--accent-cyan-light);
}

/* ===== BLOG CARDS ===== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.blog-card {
  display: flex;
  flex-direction: column;
}

.blog-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.blog-card-category {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-cyan);
}

.blog-card-date {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.blog-card h3 {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.45;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
  transition: color var(--transition-fast);
}

.blog-card:hover h3 { color: var(--accent-teal-light); }

.blog-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 20px;
}

.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.read-time {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ===== DIVIDER ===== */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
  margin: 0 0 80px;
  position: relative;
  z-index: 1;
}

/* ===== SECTION VIEW ALL ===== */
.section-footer {
  text-align: center;
  margin-top: 48px;
}

/* ===== STATS ===== */
.stats-row {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  margin-top: 60px;
  padding-top: 48px;
  border-top: 1px solid var(--border-subtle);
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--accent-teal-light), var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ===== FOOTER ===== */
footer {
  border-top: 1px solid var(--border-subtle);
  padding: 48px 0;
  position: relative;
  z-index: 1;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-name {
  font-weight: 700;
  font-size: 0.95rem;
}

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

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

.social-link {
  width: 38px;
  height: 38px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.social-link:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateY(-2px);
}

.footer-copy {
  font-size: 0.78rem;
  color: var(--text-muted);
  width: 100%;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== ABOUT PAGE ===== */
.about-hero {
  padding: 140px 0 80px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  align-items: start;
}

.about-avatar {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(124,58,237,0.2), rgba(6,182,212,0.15));
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 80px;
  box-shadow: var(--glow-teal);
  max-width: 260px;
}

.about-content h1 {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.about-role {
  font-size: 1.05rem;
  color: var(--accent-cyan-light);
  font-weight: 500;
  margin-bottom: 24px;
}

.about-bio {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
  font-size: 0.975rem;
}

.skills-section {
  margin-top: 60px;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.skill-card:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.skill-icon { font-size: 22px; }
.skill-name { font-size: 0.875rem; font-weight: 500; }
.skill-sub { font-size: 0.75rem; color: var(--text-muted); }

@media (max-width: 760px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .about-avatar { max-width: 140px; font-size: 52px; }
  .stats-row { gap: 28px; }
}

/* ===== BLOG PAGE ===== */
.blog-hero {
  padding: 140px 0 60px;
}

.blog-controls {
  margin-bottom: 40px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.search-input {
  flex: 1;
  min-width: 220px;
  padding: 10px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-input::placeholder { color: var(--text-muted); }

.search-input:focus {
  border-color: var(--border-accent);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

.filter-tabs {
  display: flex;
  gap: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 4px;
}

.filter-tab {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
  font-family: 'Inter', sans-serif;
}

.filter-tab.active {
  background: var(--accent-teal);
  color: #fff;
}

.filter-tab:hover:not(.active) {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

/* ===== ANIMATIONS ===== */
@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ===== FEATURED BADGE ===== */
.featured-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 3px 10px;
  background: linear-gradient(135deg, var(--accent-teal), var(--accent-cyan));
  border-radius: 100px;
  font-size: 0.68rem;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ===== CONTACT CARD ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--text-primary);
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

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

.contact-icon {
  width: 40px;
  height: 40px;
  background: rgba(124, 58, 237, 0.12);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.contact-info-label { font-size: 0.72rem; color: var(--text-muted); margin-bottom: 3px; }
.contact-info-value { font-size: 0.875rem; font-weight: 500; }

/* ===== NO RESULTS ===== */
.no-results {
  text-align: center;
  padding: 80px 0;
  color: var(--text-muted);
  display: none;
}

.no-results svg { margin: 0 auto 16px; opacity: 0.3; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb {
  background: rgba(124, 58, 237, 0.3);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: rgba(124, 58, 237, 0.5); }

/* ===== SELECTION ===== */
::selection {
  background: rgba(124, 58, 237, 0.3);
  color: var(--text-primary);
}