/* ============================================================
   AnnMax Portfolio - Main Styles
   Dark theme · Glassmorphism · Gradient accents
   ============================================================ */

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

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: rgba(255,255,255,0.03);
  --bg-glass: rgba(255,255,255,0.05);
  --border-glass: rgba(255,255,255,0.08);
  --text-primary: #e8e8f0;
  --text-secondary: #8888a0;
  --text-muted: #555570;
  --accent-1: #6366f1;
  --accent-2: #8b5cf6;
  --accent-3: #a78bfa;
  --gradient-1: linear-gradient(135deg, #6366f1, #8b5cf6, #a78bfa);
  --gradient-2: linear-gradient(135deg, #06b6d4, #3b82f6, #6366f1);
  --gradient-hero: linear-gradient(135deg, #0a0a0f 0%, #1a1033 50%, #0a0a0f 100%);
  --shadow-glow: 0 0 40px rgba(99,102,241,0.15);
  /* Aliases for blog/extension compatibility */
  --text-1: var(--text-primary);
  --text-2: var(--text-secondary);
  --bg-1: var(--bg-primary);
  --bg-2: var(--bg-secondary);
  --border-1: var(--border-glass);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Noto Sans SC', 'Noto Sans JP', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

::selection { background: var(--accent-1); color: #fff; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent-1); border-radius: 3px; }

/* ============================================================
   Navigation
   ============================================================ */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 0 2rem;
  backdrop-filter: blur(20px) saturate(1.8);
  background: rgba(10,10,15,0.8);
  border-bottom: 1px solid var(--border-glass);
  transition: var(--transition);
}
.navbar.scrolled { box-shadow: 0 4px 30px rgba(0,0,0,0.3); }
.nav-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.nav-logo {
  font-size: 1.4rem; font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  text-decoration: none;
}
.nav-links { display: flex; gap: 0.5rem; list-style: none; }
.nav-links a {
  color: var(--text-secondary); text-decoration: none;
  padding: 0.5rem 1rem; border-radius: var(--radius-sm);
  font-size: 0.9rem; font-weight: 500;
  transition: var(--transition);
}
.nav-links a:hover, .nav-links a.active {
  color: var(--text-primary);
  background: var(--bg-glass);
}
.nav-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 1.5rem; cursor: pointer; padding: 0.5rem; border-radius: 8px; transition: var(--transition); }
.nav-toggle:hover { background: var(--bg-glass); }

/* ============================================================
   Hero Section
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  background: var(--gradient-hero);
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(99,102,241,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}
.hero-glow {
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
}
.hero-glow-1 { top: -200px; right: -100px; background: var(--accent-1); }
.hero-glow-2 { bottom: -200px; left: -100px; background: var(--accent-2); }

.hero-content {
  position: relative; z-index: 1;
  text-align: center; padding: 2rem;
  max-width: 800px;
}
.hero-greeting {
  font-size: 1.2rem; color: var(--text-secondary);
  margin-bottom: 0.5rem;
  opacity: 0; animation: fadeUp 0.8s ease forwards 0.2s;
}
.hero-name {
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 900;
  background: var(--gradient-1);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  line-height: 1.1;
  opacity: 0; animation: fadeUp 0.8s ease forwards 0.4s;
}
.hero-titles {
  height: 2.5rem; margin: 1rem 0;
  overflow: hidden;
}
.hero-title-line {
  font-size: 1.3rem; color: var(--accent-3);
  font-weight: 600;
  height: 2.5rem; line-height: 2.5rem;
  opacity: 0;
  animation: titleRotate 12s ease infinite;
}
.hero-title-line:nth-child(1) { animation-delay: 0s; }
.hero-title-line:nth-child(2) { animation-delay: 3s; }
.hero-title-line:nth-child(3) { animation-delay: 6s; }
.hero-title-line:nth-child(4) { animation-delay: 9s; }

@keyframes titleRotate {
  0%, 20% { opacity: 0; transform: translateY(20px); }
  5%, 15% { opacity: 1; transform: translateY(0); }
  25%, 100% { opacity: 0; transform: translateY(-20px); }
}

.hero-desc {
  font-size: 1.05rem; color: var(--text-secondary);
  margin: 1.5rem 0 2.5rem;
  opacity: 0; animation: fadeUp 0.8s ease forwards 0.6s;
}
.hero-buttons {
  display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap;
  opacity: 0; animation: fadeUp 0.8s ease forwards 0.8s;
}
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: var(--radius);
  font-size: 1rem; font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: var(--gradient-1);
  color: #fff;
  box-shadow: 0 4px 20px rgba(99,102,241,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(99,102,241,0.4);
}
.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(10px);
}
.btn-outline:hover {
  background: var(--bg-glass);
  border-color: var(--accent-1);
  transform: translateY(-2px);
}

/* Floating particles */
.particles {
  position: absolute; inset: 0; z-index: 0;
  overflow: hidden;
}
.particle {
  position: absolute;
  width: 4px; height: 4px;
  background: var(--accent-1);
  border-radius: 50%;
  opacity: 0.3;
  animation: float linear infinite;
}
@keyframes float {
  0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
  10% { opacity: 0.3; }
  90% { opacity: 0.3; }
  100% { transform: translateY(-100px) rotate(720deg); opacity: 0; }
}

/* ============================================================
   Sections Common
   ============================================================ */
section {
  padding: 6rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}
.section-tag {
  display: inline-block;
  font-size: 0.8rem; font-weight: 700;
  color: var(--accent-1);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 1rem;
}
.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 0.75rem;
}
.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   About Section
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.about-avatar {
  position: relative;
  width: 280px; height: 280px;
  margin: 0 auto;
}
.avatar-ring {
  position: absolute; inset: -8px;
  border-radius: 50%;
  border: 2px solid transparent;
  border-top-color: var(--accent-1);
  border-right-color: var(--accent-2);
  animation: spin 8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.avatar-inner {
  width: 100%; height: 100%;
  border-radius: 50%;
  background: var(--gradient-1);
  display: flex; align-items: center; justify-content: center;
  font-size: 5rem;
  box-shadow: var(--shadow-glow);
}
.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1.2rem;
  font-size: 1.05rem;
}
.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}
.stat-item {
  text-align: center;
  padding: 1.5rem 0.5rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
}
.stat-number {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

/* ============================================================
   Skills Section
   ============================================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.skill-card {
  padding: 1.5rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  transition: var(--transition);
}
.skill-card:hover {
  border-color: rgba(99,102,241,0.3);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}
.skill-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 0.8rem;
}
.skill-name {
  font-weight: 600;
  font-size: 0.95rem;
}
.skill-percent {
  font-size: 0.85rem;
  color: var(--accent-3);
  font-weight: 700;
}
.skill-bar {
  height: 6px;
  background: rgba(255,255,255,0.06);
  border-radius: 3px;
  overflow: hidden;
}
.skill-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--gradient-1);
  width: 0;
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.skill-card.visible .skill-fill { width: var(--percent); }

/* ============================================================
   Extensions Section
   ============================================================ */
.ext-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}
.ext-card {
  padding: 0;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.ext-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-1);
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: left;
}
.ext-card:hover::before { transform: scaleX(1); }
.ext-card:hover {
  border-color: rgba(99,102,241,0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.ext-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.2rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
}
.ext-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}
.ext-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.ext-tags {
  display: flex; gap: 0.5rem; margin-top: 1rem; flex-wrap: wrap;
}
.ext-tag {
  font-size: 0.7rem;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  background: rgba(99,102,241,0.1);
  color: var(--accent-3);
  font-weight: 600;
}
.ext-link {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--accent-2);
  text-decoration: none;
  font-weight: 600;
  margin-top: 0.5rem;
  transition: var(--transition);
}
.ext-link:hover { color: var(--accent-1); }

/* ============================================================
   Custom Dev Section
   ============================================================ */
.custom-section {
  background: var(--bg-secondary);
  border-radius: 32px;
  padding: 5rem 3rem;
  margin: 0 auto;
  max-width: 1200px;
  position: relative;
  overflow: hidden;
}
.custom-section::before {
  content: '';
  position: absolute; top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: conic-gradient(from 0deg, transparent, rgba(99,102,241,0.05), transparent 30%);
  animation: spin 20s linear infinite;
}
.custom-inner {
  position: relative; z-index: 1;
}
.custom-desc {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem;
}
.custom-desc p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 1rem;
}
.custom-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.custom-feature {
  padding: 2rem 1.5rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  text-align: center;
  transition: var(--transition);
}
.custom-feature:hover {
  border-color: rgba(99,102,241,0.3);
  transform: translateY(-2px);
}
.custom-feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}
.custom-feature h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.custom-feature p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.custom-cta {
  text-align: center;
  padding: 3rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
}
.custom-cta h3 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}
.custom-cta p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}
.btn-email {
  display: inline-flex; align-items: center; gap: 0.75rem;
  padding: 1rem 2.5rem;
  background: var(--gradient-2);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(6,182,212,0.3);
}
.btn-email:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(6,182,212,0.4);
}

/* ============================================================
   Contact Section
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.contact-card {
  padding: 2.5rem 2rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  text-align: center;
  text-decoration: none;
  color: var(--text-primary);
  transition: var(--transition);
}
.contact-card:hover {
  border-color: rgba(99,102,241,0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.contact-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}
.contact-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}
.contact-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.contact-direct {
  text-align: center;
  padding: 2rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
}
.contact-direct p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}
.contact-email-link {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-3);
  text-decoration: none;
  transition: var(--transition);
}
.contact-email-link:hover {
  color: var(--accent-1);
  text-decoration: underline;
}

/* ============================================================
   Footer
   ============================================================ */
footer {
  text-align: center;
  padding: 3rem 2rem;
  border-top: 1px solid var(--border-glass);
  color: var(--text-muted);
  font-size: 0.85rem;
}
footer p { margin-bottom: 0.5rem; }
.footer-heart { color: #ef4444; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 64px; left: 0; right: 0;
    background: rgba(10,10,15,0.95);
    backdrop-filter: blur(20px);
    padding: 1rem;
    border-bottom: 1px solid var(--border-glass);
  }
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .skills-grid { grid-template-columns: 1fr; }
  .ext-grid { grid-template-columns: 1fr; }
  .custom-section { padding: 3rem 1.5rem; border-radius: 20px; }
  .custom-features { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero-name { font-size: 2.5rem; }
  section { padding: 4rem 1.5rem; }
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ============================================================
   Extension Screenshots
   ============================================================ */
.ext-screenshot {
  width: 100%;
  height: 180px;
  object-fit: contain;
  border-radius: 16px 16px 0 0;
  border: 1px solid var(--border-1);
  border-bottom: 1px solid var(--border-1);
  background: var(--bg-1);
  padding: 8px;
  transition: var(--transition);
}
.ext-card:hover .ext-screenshot {
  background: rgba(99,102,241,0.06);
}
.ext-screenshot-placeholder {
  opacity: 0.6;
}
.ext-card-body {
  padding: 1.2rem 1.5rem 1.5rem;
}
.ext-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.3rem;
}
.ext-header .ext-icon {
  font-size: 1.2rem;
}
.ext-header h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-1);
}
.ext-card .ext-icon {
  display: none;
}

/* ============================================================
   Blog Section
   ============================================================ */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}
.blog-card {
  background: var(--bg-2);
  border: 1px solid var(--border-1);
  border-radius: 16px;
  padding: 1.5rem;
  text-decoration: none;
  transition: all 0.3s;
}
.blog-card:hover {
  border-color: var(--accent-2);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.2);
}
.blog-date {
  font-size: 0.75rem;
  color: var(--accent-2);
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.blog-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 0.5rem;
  line-height: 1.4;
}
.blog-card p {
  font-size: 0.85rem;
  color: var(--text-2);
  line-height: 1.6;
  margin-bottom: 0.8rem;
}
.blog-tag {
  font-size: 0.7rem;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  background: rgba(99,102,241,0.1);
  color: var(--accent-3);
  font-weight: 600;
}

/* ============================================================
   Back to Top
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-2);
  color: #fff;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s;
  z-index: 99;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--accent-1);
}

/* Custom Dev Pricing */
.custom-price {
  font-size: 0.9rem;
  color: var(--text-2);
  margin-bottom: 1.2rem;
}

/* Skill Detail */
.skill-detail {
  font-size: 0.72rem;
  color: var(--text-2);
  margin-top: 0.3rem;
  opacity: 0.7;
}