/* ============================================
   PHP & Laravel Tutorials — style.css
   Colorful Modern Developer Theme
   ============================================ */

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

:root {
  --php: #7c3aed;
  --php-light: #ede9fe;
  --laravel: #f05340;
  --laravel-light: #fff1f0;
  --accent: #06b6d4;
  --accent2: #10b981;
  --yellow: #f59e0b;
  --dark: #0f0f1a;
  --dark2: #1a1a2e;
  --dark3: #16213e;
  --card-bg: #1e1e3a;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --border: rgba(255,255,255,0.08);
  --font-mono: 'Space Mono', monospace;
  --font-sans: 'Plus Jakarta Sans', sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --glow-php: 0 0 30px rgba(124,58,237,0.3);
  --glow-laravel: 0 0 30px rgba(240,83,64,0.3);
}

html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); background: var(--dark); color: var(--text); line-height: 1.7; overflow-x: hidden; }

h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; color: #fff; }
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: 1.3rem; }
h4 { font-size: 1.05rem; }
p { color: var(--text-muted); font-size: 1rem; }
a { text-decoration: none; color: inherit; }
code { font-family: var(--font-mono); background: rgba(255,255,255,0.08); padding: 2px 6px; border-radius: 4px; font-size: 0.88em; color: #a5f3fc; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 2rem; }
.section { padding: 5rem 0; }
.section-header { text-align: center; margin-bottom: 3.5rem; }
.section-label { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.75rem; display: block; }
.section-desc { color: var(--text-muted); max-width: 520px; margin: 0 auto; font-size: 1.05rem; }

/* ---- BUTTONS ---- */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 0.75rem 1.75rem; border-radius: 50px; font-family: var(--font-sans); font-size: 0.95rem; font-weight: 600; cursor: pointer; transition: all 0.3s ease; border: none; }
.btn-primary { background: linear-gradient(135deg, var(--php), var(--accent)); color: white; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(124,58,237,0.4); }
.btn-ghost { background: transparent; color: var(--text); border: 1.5px solid var(--border); }
.btn-ghost:hover { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.2); }
.btn-small { padding: 0.5rem 1.2rem; font-size: 0.85rem; }

/* ---- GRADIENT TEXT ---- */
.gradient-text { background: linear-gradient(135deg, var(--php) 0%, var(--accent) 50%, var(--accent2) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* ============================================
   NAVBAR
   ============================================ */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 1.2rem 2rem; transition: all 0.3s ease; }
.navbar.scrolled { background: rgba(15,15,26,0.95); backdrop-filter: blur(16px); padding: 0.8rem 2rem; border-bottom: 1px solid var(--border); }
.nav-inner { max-width: 1100px; margin: 0 auto; display: flex; align-items: center; gap: 2rem; }
.logo { display: flex; align-items: center; gap: 0.6rem; font-weight: 700; font-size: 1.2rem; color: white; }
.logo-icon { font-family: var(--font-mono); color: var(--accent); font-size: 1.1rem; }
.nav-links { display: flex; list-style: none; gap: 2rem; margin-left: auto; }
.nav-links a { font-size: 0.9rem; color: var(--text-muted); font-weight: 500; transition: color 0.3s; position: relative; }
.nav-links a::after { content: ''; position: absolute; bottom: -3px; left: 0; width: 0; height: 2px; background: var(--accent); transition: width 0.3s; }
.nav-links a:hover, .nav-links a.active { color: white; }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-cta { background: linear-gradient(135deg, var(--php), var(--accent)); color: white; padding: 0.5rem 1.3rem; border-radius: 50px; font-size: 0.88rem; font-weight: 600; transition: all 0.3s; }
.nav-cta:hover { transform: translateY(-1px); box-shadow: var(--glow-php); }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; margin-left: auto; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: all 0.3s; }

/* ============================================
   HERO
   ============================================ */
.hero { min-height: 100vh; display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 3rem; max-width: 1100px; margin: 0 auto; padding: 6rem 2rem 4rem; position: relative; }
.hero-bg-grid { position: fixed; inset: 0; background-image: radial-gradient(rgba(124,58,237,0.08) 1px, transparent 1px); background-size: 40px 40px; pointer-events: none; z-index: 0; }
.hero-content { position: relative; z-index: 1; animation: fadeUp 0.8s ease both; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(6,182,212,0.1); border: 1px solid rgba(6,182,212,0.3); color: var(--accent); padding: 0.4rem 1rem; border-radius: 50px; font-size: 0.82rem; font-weight: 600; margin-bottom: 1.5rem; }
.hero h1 { margin-bottom: 1.25rem; }
.hero p { font-size: 1.1rem; max-width: 460px; margin-bottom: 2rem; line-height: 1.8; }
.hero-actions { display: flex; gap: 1rem; margin-bottom: 3rem; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 2rem; }
.stat { display: flex; flex-direction: column; }
.stat-num { font-family: var(--font-mono); font-size: 1.8rem; font-weight: 700; color: white; background: linear-gradient(135deg, var(--php), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-label { font-size: 0.78rem; color: var(--text-dim); font-weight: 500; margin-top: 2px; }

/* CODE WINDOW */
.hero-code { position: relative; z-index: 1; animation: fadeUp 1s ease 0.2s both; }
.code-window { background: #0d1117; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid rgba(255,255,255,0.1); box-shadow: var(--glow-php), 0 20px 60px rgba(0,0,0,0.5); }
.code-titlebar { display: flex; align-items: center; gap: 8px; padding: 0.9rem 1.25rem; background: #161b22; border-bottom: 1px solid rgba(255,255,255,0.08); }
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot.red { background: #ff5f57; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #28c840; }
.code-filename { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-dim); margin-left: 0.5rem; }
.code-block { padding: 1.5rem; font-family: var(--font-mono); font-size: 0.88rem; line-height: 1.8; overflow-x: auto; }
.c-tag { color: #ff7b72; }
.c-comment { color: #8b949e; }
.c-var { color: #79c0ff; }
.c-str { color: #a5d6ff; }
.c-fn { color: #d2a8ff; }
.c-kw { color: #ff7b72; }
.c-num { color: #79c0ff; }

/* ============================================
   TRACKS
   ============================================ */
.tracks { background: var(--dark2); }
.tracks-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.25rem; }
.track-card { display: flex; align-items: center; gap: 1.25rem; padding: 1.5rem; border-radius: var(--radius-lg); border: 1px solid var(--border); background: var(--card-bg); transition: all 0.3s; cursor: pointer; }
.track-card:hover { transform: translateY(-3px); border-color: rgba(255,255,255,0.15); }
.track-php:hover { box-shadow: var(--glow-php); border-color: rgba(124,58,237,0.4); }
.track-oop:hover { box-shadow: 0 0 30px rgba(6,182,212,0.3); border-color: rgba(6,182,212,0.4); }
.track-laravel:hover { box-shadow: var(--glow-laravel); border-color: rgba(240,83,64,0.4); }
.track-advanced:hover { box-shadow: 0 0 30px rgba(245,158,11,0.3); border-color: rgba(245,158,11,0.4); }
.track-blog:hover { box-shadow: 0 0 30px rgba(34,197,94,0.3); border-color: rgba(34,197,94,0.4); }
.track-icon { font-size: 2rem; flex-shrink: 0; }
.track-info { flex: 1; }
.track-info h3 { font-size: 1rem; margin-bottom: 0.3rem; }
.track-info p { font-size: 0.85rem; margin-bottom: 0.6rem; }
.track-meta { display: flex; gap: 1rem; }
.track-meta span { font-size: 0.75rem; color: var(--text-dim); background: rgba(255,255,255,0.06); padding: 0.2rem 0.6rem; border-radius: 50px; }
.track-arrow { font-size: 1.2rem; color: var(--text-dim); transition: transform 0.3s; }
.track-card:hover .track-arrow { transform: translateX(4px); color: white; }

/* ============================================
   LESSONS GRID
   ============================================ */
.featured { background: var(--dark); }
.lessons-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.lesson-card { display: flex; gap: 1rem; background: var(--card-bg); border-radius: var(--radius); border: 1px solid var(--border); padding: 1.25rem; transition: all 0.3s; cursor: pointer; }
.lesson-card:hover { transform: translateY(-3px); border-color: rgba(124,58,237,0.4); box-shadow: var(--glow-php); }
.lesson-number { font-family: var(--font-mono); font-size: 1.8rem; font-weight: 700; color: rgba(255,255,255,0.08); flex-shrink: 0; line-height: 1; }
.lesson-body { flex: 1; }
.lesson-tag { display: inline-block; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 0.2rem 0.6rem; border-radius: 4px; margin-bottom: 0.5rem; }
.lesson-tag.php { background: var(--php-light); color: var(--php); }
.lesson-tag.laravel { background: var(--laravel-light); color: var(--laravel); }
.lesson-body h4 { font-size: 0.95rem; margin-bottom: 0.4rem; color: white; }
.lesson-body p { font-size: 0.83rem; margin-bottom: 0.75rem; }
.lesson-footer { display: flex; justify-content: space-between; align-items: center; font-size: 0.78rem; color: var(--text-dim); }
.lesson-arrow { color: var(--accent); transition: transform 0.3s; }
.lesson-card:hover .lesson-arrow { transform: translateX(4px); }
.lesson-card-more { align-items: center; justify-content: center; background: transparent; border-style: dashed; }
.lesson-card-more:hover { background: var(--card-bg); }
.more-lessons { text-align: center; }
.more-lessons span { display: block; font-size: 0.9rem; font-weight: 600; color: var(--accent); margin-bottom: 0.5rem; }
.big-arrow { font-size: 1.5rem; }

/* ============================================
   WHY SECTION
   ============================================ */
.why { background: var(--dark2); }
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.why-features { display: flex; flex-direction: column; gap: 1.5rem; }
.why-feature { display: flex; gap: 1rem; align-items: flex-start; }
.why-icon { font-size: 1.5rem; flex-shrink: 0; }
.why-feature strong { display: block; color: white; font-weight: 600; margin-bottom: 0.25rem; font-size: 0.95rem; }
.why-feature p { font-size: 0.88rem; margin: 0; }

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section { background: linear-gradient(135deg, rgba(124,58,237,0.15) 0%, rgba(6,182,212,0.1) 100%); padding: 5rem 2rem; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.cta-section h2 { text-align: center; margin-bottom: 0.75rem; }
.cta-section p { text-align: center; color: var(--text-muted); }

/* ============================================
   FOOTER
   ============================================ */
.footer { background: #080814; padding: 4rem 0 2rem; border-top: 1px solid var(--border); }
.footer-top { display: grid; grid-template-columns: 1.5fr 1fr; gap: 4rem; padding-bottom: 3rem; border-bottom: 1px solid var(--border); margin-bottom: 2rem; }
.footer-brand p { font-size: 0.88rem; color: var(--text-dim); margin-top: 0.75rem; max-width: 260px; }
.footer-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.footer-col h5 { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 1rem; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.6rem; }
.footer-col a { font-size: 0.88rem; color: var(--text-muted); transition: color 0.3s; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem; }
.footer-bottom p { font-size: 0.82rem; color: var(--text-dim); }

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; text-align: center; padding-top: 7rem; }
  .hero p { margin: 0 auto 2rem; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .tracks-grid { grid-template-columns: 1fr; }
  .lessons-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .nav-links.open { display: flex; flex-direction: column; position: fixed; top: 64px; left: 0; right: 0; background: var(--dark2); padding: 2rem; gap: 1.5rem; z-index: 99; border-bottom: 1px solid var(--border); }
  .lessons-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; gap: 1rem; }
}