/* ============================================
   CodeCamp — プログラミングスクール
   Theme: Terminal Dark / Neon Green / Code Aesthetic
   STANDALONE
   ============================================ */

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Inter','Noto Sans JP',system-ui,sans-serif;
  color:rgba(255,255,255,.45);background:#0a0a0f;font-size:15px;line-height:1.85;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:rgba(34,197,94,.2);color:#fff}

:root{
  --bg:#0a0a0f;--bg2:#0f0f18;--bg3:#141420;--bg4:#1a1a28;
  --green:#22c55e;--green2:#4ade80;--green-glow:rgba(34,197,94,.08);
  --cyan:#06b6d4;--purple:#a78bfa;
  --text:rgba(255,255,255,.4);--heading:#fff;
  --mono:'JetBrains Mono','Fira Code','SF Mono',monospace;
  --sans:'Inter','Noto Sans JP',sans-serif;
  --r:8px;--r2:999px;
}

/* === GRID BG === */
body::before{content:'';position:fixed;inset:0;background-image:
  linear-gradient(rgba(34,197,94,.03) 1px,transparent 1px),
  linear-gradient(90deg,rgba(34,197,94,.03) 1px,transparent 1px);
  background-size:60px 60px;pointer-events:none;z-index:0}

/* === LAYOUT === */
.mx{max-width:1100px;margin:0 auto;padding:0 clamp(1.5rem,5vw,3rem);position:relative;z-index:1}
.sc{padding:clamp(5rem,10vw,8rem) 0;position:relative;z-index:1}

/* === HEADER === */
.hdr{position:fixed;top:0;left:0;width:100%;z-index:800;padding:1rem clamp(1.5rem,5vw,3rem);display:flex;align-items:center;justify-content:space-between;background:rgba(10,10,15,.8);backdrop-filter:blur(16px);border-bottom:1px solid rgba(34,197,94,.06)}
.hdr-logo{font-family:var(--mono);font-size:.8rem;color:var(--green);font-weight:600;display:flex;align-items:center;gap:.5rem}
.hdr-logo::before{content:'>';color:var(--green);opacity:.5}
.hdr-nav{display:flex;align-items:center;gap:2rem}
.hdr-nav a{font-size:.75rem;font-weight:500;color:var(--text);transition:color .2s;font-family:var(--mono);letter-spacing:.02em}
.hdr-nav a:hover{color:var(--green)}
.hdr-cta{font-size:.7rem;font-weight:600;padding:.45rem 1.3rem;background:var(--green);color:#000;border-radius:var(--r);transition:all .3s;font-family:var(--sans)}
.hdr-cta:hover{opacity:1;box-shadow:0 0 20px rgba(34,197,94,.3);transform:translateY(-1px)}
@media(max-width:768px){.hdr-nav a:not(.hdr-cta){display:none}}

/* === HERO — Terminal style === */
.hero-code{min-height:100vh;display:flex;align-items:center;padding-top:60px}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.hero-text .tag{font-family:var(--mono);font-size:.6rem;color:var(--green);letter-spacing:.1em;margin-bottom:1rem;opacity:.6}
.hero-text h1{font-size:clamp(2rem,4.5vw,3.5rem);font-weight:800;color:var(--heading);line-height:1.3;margin-bottom:1.25rem;letter-spacing:-.02em}
.hero-text h1 span{color:var(--green)}
.hero-text p{font-size:.9rem;line-height:2;margin-bottom:2rem;max-width:450px}
.hero-btns{display:flex;gap:.75rem;flex-wrap:wrap}
.btn-green{display:inline-flex;align-items:center;gap:.4rem;padding:.7rem 1.8rem;background:var(--green);color:#000;border-radius:var(--r);font-size:.8rem;font-weight:700;transition:all .3s;font-family:var(--sans)}
.btn-green:hover{opacity:1;box-shadow:0 0 25px rgba(34,197,94,.3);transform:translateY(-2px)}
.btn-outline{display:inline-flex;align-items:center;gap:.4rem;padding:.7rem 1.8rem;border:1px solid rgba(255,255,255,.1);color:rgba(255,255,255,.6);border-radius:var(--r);font-size:.8rem;font-weight:500;transition:all .3s}
.btn-outline:hover{border-color:var(--green);color:var(--green);opacity:1}

/* Terminal window */
.terminal{background:var(--bg2);border:1px solid rgba(255,255,255,.06);border-radius:12px;overflow:hidden;box-shadow:0 25px 60px rgba(0,0,0,.4)}
.terminal-bar{display:flex;align-items:center;gap:6px;padding:.75rem 1rem;background:rgba(255,255,255,.03);border-bottom:1px solid rgba(255,255,255,.04)}
.terminal-dot{width:10px;height:10px;border-radius:50%}
.terminal-dot:nth-child(1){background:#ff5f57}
.terminal-dot:nth-child(2){background:#ffbd2e}
.terminal-dot:nth-child(3){background:#28c840}
.terminal-title{margin-left:auto;font-family:var(--mono);font-size:.6rem;color:rgba(255,255,255,.2)}
.terminal-body{padding:1.25rem;font-family:var(--mono);font-size:.75rem;line-height:2;color:rgba(255,255,255,.5)}
.terminal-body .prompt{color:var(--green)}
.terminal-body .cmd{color:rgba(255,255,255,.8)}
.terminal-body .comment{color:rgba(255,255,255,.15);font-style:italic}
.terminal-body .output{color:var(--cyan)}
.terminal-body .str{color:var(--purple)}

/* Typing animation */
.typing::after{content:'▋';animation:blink 1s step-end infinite;color:var(--green)}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}

@media(max-width:768px){.hero-grid{grid-template-columns:1fr}}

/* === COURSES — Code-block style cards === */
.courses-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.25rem;margin-top:2.5rem}
.course{background:var(--bg2);border:1px solid rgba(255,255,255,.04);border-radius:var(--r);overflow:hidden;transition:all .4s;position:relative}
.course:hover{border-color:rgba(34,197,94,.2);box-shadow:0 0 30px rgba(34,197,94,.05);transform:translateY(-3px)}
.course-header{display:flex;align-items:center;justify-content:space-between;padding:.75rem 1.25rem;background:rgba(255,255,255,.02);border-bottom:1px solid rgba(255,255,255,.03)}
.course-lang{font-family:var(--mono);font-size:.6rem;color:var(--green);display:flex;align-items:center;gap:.4rem}
.course-lang::before{content:'●';font-size:.4rem}
.course-tag{font-size:.5rem;padding:.15rem .5rem;border-radius:var(--r2);background:rgba(34,197,94,.1);color:var(--green);font-weight:600}
.course-body{padding:1.5rem 1.25rem}
.course h3{font-size:1rem;font-weight:700;color:var(--heading);margin-bottom:.4rem}
.course p{font-size:.75rem;line-height:1.8;margin-bottom:1rem}
.course-meta{display:flex;gap:1.5rem;font-family:var(--mono);font-size:.6rem;color:var(--text)}
.course-meta span::before{content:'//';color:rgba(34,197,94,.3);margin-right:.3rem}
@media(max-width:640px){.courses-grid{grid-template-columns:1fr}}

/* === NUMBERS === */
.nums-code{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:var(--bg2);border:1px solid rgba(255,255,255,.04);border-radius:var(--r);overflow:hidden;margin:0 clamp(1.5rem,5vw,3rem)}
.num-c{padding:clamp(1.5rem,3vw,2rem);text-align:center;border-right:1px solid rgba(255,255,255,.03)}
.num-c:last-child{border-right:none}
.num-c-val{font-family:var(--mono);font-size:clamp(1.5rem,3vw,2.2rem);font-weight:700;color:var(--green)}
.num-c-lbl{font-size:.6rem;color:var(--text);margin-top:.2rem}
@media(max-width:640px){.nums-code{grid-template-columns:repeat(2,1fr);margin:0 1rem}.num-c:nth-child(2){border-right:none}}

/* === STEPS === */
.steps{counter-reset:step;margin-top:2.5rem}
.step{display:flex;gap:1.5rem;padding:1.5rem 0;border-bottom:1px solid rgba(255,255,255,.03);counter-increment:step}
.step-num{font-family:var(--mono);font-size:2rem;font-weight:200;color:rgba(34,197,94,.15);flex-shrink:0;width:50px;line-height:1}
.step h4{font-size:.9rem;font-weight:700;color:var(--heading);margin-bottom:.3rem}
.step p{font-size:.78rem;line-height:1.8}

/* === CTA === */
.cta-code{background:linear-gradient(135deg,rgba(34,197,94,.08),rgba(6,182,212,.05));border:1px solid rgba(34,197,94,.1);border-radius:12px;padding:clamp(3rem,6vw,5rem);text-align:center;margin:0 clamp(1.5rem,5vw,3rem)}
.cta-code h2{font-size:clamp(1.3rem,3vw,2rem);font-weight:700;color:var(--heading);margin-bottom:.5rem}
.cta-code p{font-size:.82rem;color:var(--text);margin-bottom:1.5rem}

/* === SECTION HEADER === */
.sh{margin-bottom:.5rem}
.sh-label{font-family:var(--mono);font-size:.6rem;color:var(--green);letter-spacing:.1em;opacity:.6;margin-bottom:.75rem;display:flex;align-items:center;gap:.5rem}
.sh-label::before{content:'//'}
.sh h2{font-size:clamp(1.3rem,3vw,2rem);font-weight:700;color:var(--heading);letter-spacing:-.01em}

/* === FOOTER === */
.ftr-code{padding:1.5rem clamp(1.5rem,5vw,3rem);border-top:1px solid rgba(255,255,255,.03);display:flex;justify-content:space-between;font-size:.6rem;color:rgba(255,255,255,.12);font-family:var(--mono)}
@media(max-width:640px){.ftr-code{flex-direction:column;gap:.4rem}}

/* === FORM === */
.fi-dark{width:100%;padding:.7rem .85rem;background:var(--bg2);border:1px solid rgba(255,255,255,.05);border-radius:var(--r);font-family:var(--sans);font-size:.82rem;color:#fff;outline:none;transition:border-color .2s}
.fi-dark:focus{border-color:var(--green)}
.fi-dark::placeholder{color:rgba(255,255,255,.15)}
.fta-dark{width:100%;padding:.7rem .85rem;background:var(--bg2);border:1px solid rgba(255,255,255,.05);border-radius:var(--r);font-family:var(--sans);font-size:.82rem;color:#fff;outline:none;transition:border-color .2s;height:100px;resize:vertical}
.fta-dark:focus{border-color:var(--green)}
.fta-dark::placeholder{color:rgba(255,255,255,.15)}

/* === PAGE HEADER === */
.pg-hdr-code{padding:calc(60px + clamp(3rem,6vw,4rem)) 0 clamp(2rem,4vw,3rem);background:var(--bg2);border-bottom:1px solid rgba(255,255,255,.03)}
.pg-hdr-code h1{font-size:clamp(1.5rem,3.5vw,2.5rem);font-weight:700;color:var(--heading)}
.pg-hdr-code .sub{font-family:var(--mono);font-size:.7rem;color:var(--green);opacity:.5;margin-top:.3rem}

/* === ANIMATIONS === */
.sa{opacity:0;transform:translateY(20px);transition:opacity .7s cubic-bezier(.22,1,.36,1),transform .9s cubic-bezier(.22,1,.36,1)}
.sa.v{opacity:1;transform:none}
.d1{transition-delay:.12s}.d2{transition-delay:.24s}.d3{transition-delay:.36s}.d4{transition-delay:.48s}

/* BADGE */
.badge{position:fixed;bottom:1.25rem;right:1.25rem;font-family:var(--mono);font-size:.5rem;color:rgba(255,255,255,.12);letter-spacing:.05em;display:flex;align-items:center;gap:.4rem;z-index:700}
.badge::before{content:'●';font-size:.35rem;color:var(--green)}