/* ============================================================
   AsanTools — Main Stylesheet
   Responsive / Mobile Fixed Version
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Zilla+Slab:wght@400;600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root{
  --paper:#EEF1EF;
  --paper-raised:#F8F9F7;
  --ink:#1B2430;
  --ink-soft:#4B5563;
  --line:#D6DBD7;
  --brass:#B9812F;
  --brass-deep:#8F6222;
  --teal:#2F6F63;
  --teal-deep:#204D44;
  --danger:#A8433F;
  --danger-bg:#F6E7E5;
  --radius:10px;
  --shadow:0 1px 2px rgba(27,36,48,0.06),
           0 8px 24px -12px rgba(27,36,48,0.18);
  --display:'Zilla Slab', Georgia, serif;
  --body:'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono:'JetBrains Mono', ui-monospace, monospace;
}

/* ---------- reset ---------- */

*{
  box-sizing:border-box;
}

html{
  scroll-behavior:smooth;
  overflow-x:hidden;
}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--body);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

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

a{
  color:inherit;
}

button,
input,
textarea,
select{
  font:inherit;
}

/* ---------- layout ---------- */

.wrap{
  width:100%;
  max-width:1120px;
  margin:0 auto;
  padding:0 24px;
}

h1,
h2,
h3,
h4{
  font-family:var(--display);
  font-weight:700;
  line-height:1.15;
  margin:0 0 .5em;
  color:var(--ink);
}

h1{
  font-size:clamp(2.1rem,4.5vw,3.4rem);
}

h2{
  font-size:clamp(1.5rem,3vw,2.1rem);
}

h3{
  font-size:1.15rem;
}

p{
  margin:0 0 1em;
  color:var(--ink-soft);
}

/* ---------- eyebrow ---------- */

.eyebrow{
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--brass-deep);
  display:inline-flex;
  align-items:center;
  gap:8px;
}

.eyebrow::before{
  content:'';
  width:16px;
  height:2px;
  background:var(--brass);
  display:inline-block;
}

/* ============================================================
   HEADER
   ============================================================ */

.site-header{
  position:sticky;
  top:0;
  left:0;
  width:100%;
  z-index:1000;
  background:rgba(238,241,239,0.96);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}

.site-header .wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:68px;
}

/* ---------- brand ---------- */

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--display);
  font-weight:700;
  font-size:1.3rem;
  text-decoration:none;
  color:var(--ink);
  white-space:nowrap;
}

.brand-mark{
  width:34px;
  height:34px;
  min-width:34px;
  border-radius:8px;
  background:var(--ink);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--paper);
  font-family:var(--mono);
  font-weight:600;
  font-size:.85rem;
  border:2px solid var(--brass);
}

/* ---------- desktop navigation ---------- */

nav.primary{
  display:flex;
  align-items:center;
  gap:28px;
}

nav.primary a{
  text-decoration:none;
  font-weight:500;
  font-size:.95rem;
  color:var(--ink-soft);
  padding:6px 0;
  border-bottom:2px solid transparent;
  transition:color .15s,border-color .15s;
}

nav.primary a:hover,
nav.primary a.active{
  color:var(--ink);
  border-color:var(--brass);
}

/* hamburger hidden on desktop */

.nav-toggle{
  display:none;
}

/* ============================================================
   MOBILE HEADER
   ============================================================ */

@media (max-width:760px){

  .site-header{
    height:60px;
  }

  .site-header .wrap{
    height:60px;
    padding-left:16px;
    padding-right:16px;
  }

  .brand{
    font-size:1.15rem;
  }

  .brand-mark{
    width:32px;
    height:32px;
    min-width:32px;
  }

  /*
     IMPORTANT:
     Mobile navigation is completely off-screen by default.
     It cannot appear at the top of the page until .open is added.
  */

  nav.primary{
    position:fixed;
    top:60px;
    left:0;
    right:0;
    bottom:0;

    width:100%;
    height:calc(100dvh - 60px);

    display:flex;
    flex-direction:column;
    align-items:stretch;

    padding:20px 16px 40px;
    gap:0;

    background:var(--paper);
    border-top:1px solid var(--line);

    overflow-y:auto;
    overflow-x:hidden;
    -webkit-overflow-scrolling:touch;

    /*
       Hide completely outside the right side.
       This prevents the menu from being visible on page load.
    */
    transform:translate3d(100%,0,0);
    visibility:hidden;
    opacity:0;

    transition:
      transform .25s ease,
      opacity .2s ease,
      visibility 0s linear .25s;

    z-index:9999;
  }

  /*
     Menu becomes visible ONLY when JavaScript
     adds the .open class.
  */

  nav.primary.open{
    transform:translate3d(0,0,0);
    visibility:visible;
    opacity:1;

    transition:
      transform .25s ease,
      opacity .2s ease,
      visibility 0s linear 0s;
  }

  nav.primary a{
    width:100%;
    display:block;

    padding:15px 4px;
    margin:0;

    font-size:1rem;
    color:var(--ink);

    border-bottom:1px solid var(--line);
  }

  nav.primary a:last-child{
    border-bottom:0;
  }

  nav.primary a:hover,
  nav.primary a.active{
    color:var(--brass-deep);
    border-color:var(--line);
  }

  /* ---------- hamburger ---------- */

  .nav-toggle{
    width:42px;
    height:42px;

    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;

    gap:5px;

    padding:8px;
    margin:0;

    background:transparent;
    border:1px solid var(--line);
    border-radius:8px;

    cursor:pointer;

    position:relative;
    z-index:10000;

    -webkit-tap-highlight-color:transparent;
  }

  .nav-toggle span{
    display:block;
    width:22px;
    height:2px;
    background:var(--ink);
    border-radius:2px;

    transition:
      transform .2s ease,
      opacity .2s ease;
  }

  /* hamburger becomes X when menu is open */

  .nav-toggle:has(+ nav.primary.open) span:nth-child(1){
    transform:translateY(7px) rotate(45deg);
  }

  .nav-toggle:has(+ nav.primary.open) span:nth-child(2){
    opacity:0;
  }

  .nav-toggle:has(+ nav.primary.open) span:nth-child(3){
    transform:translateY(-7px) rotate(-45deg);
  }
}

/* ============================================================
   BUTTONS
   ============================================================ */

.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;

  font-family:var(--body);
  font-weight:600;
  font-size:.92rem;

  padding:12px 22px;
  border-radius:8px;
  border:1px solid transparent;

  text-decoration:none;
  cursor:pointer;

  transition:
    transform .12s,
    box-shadow .12s;
}

.btn:active{
  transform:translateY(1px);
}

.btn-brass{
  background:var(--brass);
  color:#22160a;
}

.btn-brass:hover{
  background:var(--brass-deep);
  color:#fff;
}

.btn-outline{
  border-color:var(--ink);
  color:var(--ink);
  background:transparent;
}

.btn-outline:hover{
  background:var(--ink);
  color:var(--paper);
}

.btn-sm{
  padding:8px 14px;
  font-size:.82rem;
  border-radius:6px;
}

/* ============================================================
   HERO
   ============================================================ */

.hero{
  padding:72px 0 56px;
  border-bottom:1px solid var(--line);
}

.hero-grid{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:48px;
  align-items:center;
}

@media (max-width:860px){

  .hero{
    padding:52px 0 44px;
  }

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

.hero-actions{
  display:flex;
  gap:14px;
  margin-top:22px;
  flex-wrap:wrap;
}

.hero-stats{
  display:flex;
  gap:28px;
  margin-top:32px;
  flex-wrap:wrap;
}

.hero-stats div{
  font-family:var(--mono);
}

.hero-stats b{
  display:block;
  font-size:1.4rem;
  color:var(--ink);
}

.hero-stats span{
  font-size:.78rem;
  color:var(--ink-soft);
  text-transform:uppercase;
  letter-spacing:.06em;
}

/* ---------- pegboard ---------- */

.pegboard{
  background:var(--ink);
  border-radius:16px;
  padding:28px;

  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:14px;

  box-shadow:var(--shadow);
}

.peg{
  aspect-ratio:1;
  border-radius:10px;
  background:#26313F;

  display:flex;
  align-items:center;
  justify-content:center;

  border:1px solid #364252;
  font-size:1.3rem;
}

.peg:nth-child(3n+1){
  background:linear-gradient(
    160deg,
    var(--brass),
    var(--brass-deep)
  );
}

.peg:nth-child(4n+2){
  background:linear-gradient(
    160deg,
    var(--teal),
    var(--teal-deep)
  );
}

/* ============================================================
   SECTIONS
   ============================================================ */

section{
  padding:64px 0;
}

.section-head{
  max-width:640px;
  margin-bottom:36px;
}

/* ============================================================
   TOOL GRID
   ============================================================ */

.grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}

@media (max-width:860px){
  .grid{
    grid-template-columns:repeat(2,1fr);
  }
}

@media (max-width:560px){
  .grid{
    grid-template-columns:1fr;
  }
}

.card{
  background:var(--paper-raised);
  border:1px solid var(--line);
  border-radius:var(--radius);

  padding:22px;
  position:relative;

  text-decoration:none;

  display:flex;
  flex-direction:column;
  gap:10px;

  transition:
    transform .15s,
    box-shadow .15s,
    border-color .15s;
}

.card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow);
  border-color:var(--brass);
}

.card .code{
  font-family:var(--mono);
  font-size:.72rem;
  color:var(--brass-deep);
  letter-spacing:.08em;
}

.card .icon{
  font-size:1.6rem;
}

.card h3{
  margin:0;
}

.card p{
  margin:0;
  font-size:.9rem;
}

.card::before{
  content:'';

  position:absolute;
  top:10px;
  right:10px;

  width:8px;
  height:8px;

  border-radius:50%;
  background:var(--teal);
  opacity:.55;
}

/* ============================================================
   TOOL WORKSPACE
   ============================================================ */

.tool-tabs{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:28px;
}

.tool-tab{
  font-family:var(--mono);
  font-size:.8rem;

  padding:9px 14px;
  border-radius:7px;

  border:1px solid var(--line);
  background:var(--paper-raised);

  cursor:pointer;
  color:var(--ink-soft);
}

.tool-tab.active{
  background:var(--ink);
  color:var(--paper);
  border-color:var(--ink);
}

.tool-panel{
  display:none;

  background:var(--paper-raised);
  border:1px solid var(--line);
  border-radius:14px;

  padding:32px;
}

.tool-panel.active{
  display:block;
}

.tool-panel .code{
  font-family:var(--mono);
  color:var(--brass-deep);
  font-size:.75rem;
}

.field{
  margin-bottom:16px;
}

.field label{
  display:block;
  font-weight:600;
  font-size:.85rem;
  margin-bottom:6px;
}

.field input[type=text],
.field input[type=number],
.field input[type=date],
.field select,
.field textarea{
  width:100%;

  padding:11px 13px;

  border:1px solid var(--line);
  border-radius:8px;

  font-family:var(--body);
  font-size:.95rem;

  background:#fff;
  color:var(--ink);
}

.field textarea{
  min-height:130px;
  resize:vertical;

  font-family:var(--mono);
  font-size:.85rem;
}

.row2{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}

@media (max-width:560px){
  .row2{
    grid-template-columns:1fr;
  }

  .tool-panel{
    padding:20px;
  }
}

.result{
  margin-top:18px;
  padding:16px 18px;

  border-radius:8px;

  background:#fff;
  border:1px dashed var(--brass);

  font-family:var(--mono);
  font-size:.95rem;
}

.result b{
  color:var(--teal-deep);
}

.checkline{
  display:flex;
  align-items:center;
  gap:8px;

  margin:6px 0;

  font-size:.88rem;
  color:var(--ink-soft);
}

.copybtn{
  margin-left:10px;
}

/* ============================================================
   ADVERTISEMENT
   ============================================================ */

.ad-slot{
  border:1px dashed var(--line);
  border-radius:10px;

  padding:14px;

  text-align:center;

  color:#9AA3A0;

  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.06em;

  margin:36px 0;

  text-transform:uppercase;
}

/* ============================================================
   ARTICLE / CYBER SECURITY
   ============================================================ */

.article{
  background:var(--paper-raised);
  border:1px solid var(--line);
  border-radius:14px;

  padding:28px;
  margin-bottom:24px;
}

.article h3{
  color:var(--ink);
}

.article .tag{
  display:inline-block;

  font-family:var(--mono);
  font-size:.7rem;

  background:var(--danger-bg);
  color:var(--danger);

  padding:4px 9px;
  border-radius:5px;

  margin-bottom:10px;
  letter-spacing:.05em;
}

.article ul{
  padding-left:20px;
  color:var(--ink-soft);
}

.article li{
  margin-bottom:6px;
}

/* ============================================================
   ABOUT
   ============================================================ */

.avatar-illustration{
  width:100%;
  aspect-ratio:4/3;

  border-radius:14px;
  overflow:hidden;

  background:linear-gradient(
    155deg,
    var(--ink) 0%,
    #263544 60%,
    var(--teal-deep) 100%
  );

  position:relative;
}

.avatar-illustration svg{
  position:absolute;
  inset:0;

  width:100%;
  height:100%;
}

.values-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);

  gap:20px;
  margin-top:12px;
}

@media (max-width:760px){
  .values-grid{
    grid-template-columns:1fr;
  }
}

/* ============================================================
   CONTACT
   ============================================================ */

.contact-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:40px;
}

@media (max-width:760px){
  .contact-grid{
    grid-template-columns:1fr;
    gap:24px;
  }
}

.info-line{
  display:flex;
  gap:12px;
  margin-bottom:14px;
  font-size:.92rem;
}

.info-line b{
  font-family:var(--mono);
  color:var(--brass-deep);
  min-width:90px;
  display:inline-block;
}

/* ============================================================
   FOOTER
   ============================================================ */

footer{
  border-top:1px solid var(--line);
  padding:40px 0;
  margin-top:40px;
}

.footer-grid{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:24px;
}

.footer-links{
  display:flex;
  gap:20px;
  flex-wrap:wrap;
  font-size:.88rem;
}

.footer-links a{
  text-decoration:none;
  color:var(--ink-soft);
}

.footer-links a:hover{
  color:var(--ink);
}

.fine{
  font-size:.78rem;
  color:#8A928E;
  margin-top:18px;
  font-family:var(--mono);
}

/* ============================================================
   MOBILE GENERAL FIXES
   ============================================================ */

@media (max-width:560px){

  .wrap{
    padding-left:16px;
    padding-right:16px;
  }

  section{
    padding:48px 0;
  }

  h1{
    font-size:2.15rem;
  }

  .hero-actions{
    flex-direction:column;
    align-items:stretch;
  }

  .hero-actions .btn{
    justify-content:center;
  }

  .hero-stats{
    gap:20px;
  }

  .pegboard{
    padding:18px;
    gap:10px;
  }

  .section-head{
    margin-bottom:28px;
  }

  .article{
    padding:20px;
  }

  .footer-grid{
    flex-direction:column;
  }

  .footer-links{
    flex-direction:column;
    gap:10px;
  }
}

/* ============================================================
   UTILITY
   ============================================================ */

.center{
  text-align:center;
}

.mt{
  margin-top:24px;
}

.pill{
  display:inline-block;

  font-family:var(--mono);
  font-size:.72rem;

  border:1px solid var(--line);

  padding:4px 10px;
  border-radius:20px;

  color:var(--ink-soft);
}