/* =========================================================
   Snaptech — Web & App Development Agency
   Design system: modern / professional tech
   ========================================================= */

:root{
  --navy:      #0b1220;
  --navy-2:    #111a2e;
  --blue:      #2a4386;
  --blue-dark: #1f3568;
  --blue-light:#8ca1d6;
  --red:       #d73632;
  --red-dark:  #b32c29;
  --red-light: #f0928f;
  --ink:       #101828;
  --ink-soft:  #475467;
  --surface:   #f5f7fb;
  --surface-2: #eef1f8;
  --white:     #ffffff;
  --line:      rgba(16,24,40,0.08);
  --shadow: 0 10px 30px rgba(16,24,40,0.08);
  --shadow-lg: 0 20px 50px rgba(16,24,40,0.16);
  --radius: 16px;
  --radius-sm: 10px;
  --maxw: 1200px;
}

*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:'IBM Plex Sans Thai','Noto Sans Thai',sans-serif;
  background:var(--surface);
  color:var(--ink);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%; display:block;}
a{color:inherit; text-decoration:none;}
ul{list-style:none;}
button{font-family:inherit; cursor:pointer;}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 24px;}
.placeholder-badge{
  display:inline-block; font-size:.68rem; letter-spacing:.03em;
  background:#e7f0ff; color:#1e4fc4; border:1px dashed var(--blue);
  border-radius:999px; padding:2px 10px; margin-left:8px; vertical-align:middle;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:13px 26px; border-radius:10px; font-weight:600; font-size:.95rem;
  border:2px solid transparent; transition:.2s ease; white-space:nowrap;
}
.btn-primary{ background:var(--blue); color:#fff; }
.btn-primary:hover{ background:var(--blue-dark); transform:translateY(-1px); }
.btn-outline{ background:transparent; color:var(--ink); border-color:var(--line); }
.btn-outline:hover{ border-color:var(--blue); color:var(--blue); }
.btn-white{ background:#fff; color:var(--navy); }
.btn-white:hover{ background:var(--surface-2); }
.btn-sm{ padding:8px 18px; font-size:.82rem; }
.btn-block{ width:100%; }

/* ---------- Top bar ---------- */
.topbar{ background:var(--navy); color:#c7d2e8; font-size:.78rem; }
.topbar .wrap{ display:flex; justify-content:flex-end; align-items:center; gap:14px; height:34px; }
.lang-toggle{ display:flex; gap:2px; background:rgba(255,255,255,.08); border-radius:999px; padding:2px; }
.lang-toggle button{ background:transparent; border:none; color:#9fb0cc; padding:3px 12px; border-radius:999px; font-size:.75rem; font-weight:600; }
.lang-toggle button.active{ background:var(--blue); color:#fff; }

/* ---------- Nav ---------- */
.site-header{ position:sticky; top:0; z-index:100; background:#fff; box-shadow:0 2px 12px rgba(16,24,40,.05); }
.navbar{ display:flex; align-items:center; justify-content:space-between; height:76px; gap:20px; }
.brand{ display:flex; align-items:center; gap:10px; flex-shrink:0; }
.brand-mark{
  width:50px; height:50px; border-radius:10px;
  display:flex; align-items:center; justify-content:center; overflow:hidden; flex-shrink:0;
}
.brand-mark img{ width:100%; height:100%; object-fit:contain; }
.brand-text{ line-height:1.1; }
.brand-text .name{ font-weight:700; font-size:1.15rem; letter-spacing:.02em; color:var(--navy); }
.brand-text .tag{ font-size:.62rem; letter-spacing:.12em; color:var(--ink-soft); }

.nav-links{ display:flex; align-items:center; gap:28px; }
.nav-links a{ font-size:.92rem; font-weight:500; color:var(--ink); position:relative; padding:6px 0; }
.nav-links a::after{ content:''; position:absolute; left:0; bottom:0; height:2px; width:0; background:var(--blue); transition:.2s; }
.nav-links a:hover::after, .nav-links a.active::after{ width:100%; }
.nav-links a.active{ color:var(--blue); font-weight:600; }
.nav-cta{ flex-shrink:0; }
.nav-toggle{ display:none; background:none; border:none; font-size:1.6rem; color:var(--navy); }

@media(max-width:900px){
  .nav-links{
    position:fixed; inset:76px 0 0 0; background:#fff; flex-direction:column; align-items:flex-start;
    padding:24px; gap:18px; transform:translateX(100%); transition:.25s; overflow-y:auto;
  }
  .nav-links.open{ transform:translateX(0); }
  .nav-toggle{ display:block; }
  .nav-cta.desktop-only{ display:none; }
}
@media(min-width:901px){ .nav-cta.mobile-only{ display:none; } }

/* ---------- Hero ---------- */
.hero{
  position:relative; overflow:hidden; color:#fff;
  background:
    radial-gradient(ellipse at 80% 20%, rgba(47,111,237,.35), transparent 55%),
    radial-gradient(ellipse at 10% 80%, rgba(215,54,50,.18), transparent 50%),
    linear-gradient(180deg, var(--navy) 0%, var(--navy-2) 100%);
  padding:70px 0 46px;
}
.hero-grid{
  position:absolute; inset:0; opacity:.35; pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse at center, black 30%, transparent 75%);
}
.hero-inner{ position:relative; text-align:center; max-width:760px; margin:0 auto; }
.hero-eyebrow{
  display:inline-flex; align-items:center; gap:8px; font-size:.78rem; letter-spacing:.1em;
  color:var(--blue-light); font-weight:600; margin-bottom:14px; background:rgba(47,111,237,.12);
  border:1px solid rgba(47,111,237,.35); padding:6px 16px; border-radius:999px;
}
.hero h1{ font-size:clamp(2rem, 4.6vw, 3.3rem); font-weight:700; line-height:1.25; }
.hero h1 span{ display:block; background:linear-gradient(90deg,var(--blue-light),var(--red-light)); -webkit-background-clip:text; background-clip:text; color:transparent; }
.hero p.sub{ margin-top:18px; font-size:1.05rem; color:#c7d2e8; max-width:560px; margin-left:auto; margin-right:auto; }
.hero-actions{ margin-top:28px; display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }

.feature-row{ position:relative; display:grid; grid-template-columns:repeat(4,1fr); gap:18px; max-width:900px; margin:48px auto 0; }
.feature-item{ text-align:center; }
.feature-icon{
  width:60px; height:60px; margin:0 auto 10px; border-radius:16px;
  background:rgba(255,255,255,.06); border:1.5px solid rgba(111,161,255,.4);
  display:flex; align-items:center; justify-content:center; color:var(--blue-light); font-size:1.4rem;
}
.feature-item p{ font-size:.85rem; color:#c7d2e8; }
@media(max-width:700px){ .feature-row{ grid-template-columns:repeat(2,1fr); } }

/* ---------- Services / cards ---------- */
.section{ padding:70px 0; }
.section-alt{ background:var(--surface-2); }
.section-head{ text-align:center; max-width:640px; margin:0 auto 40px; }
.eyebrow{ font-size:.78rem; letter-spacing:.14em; color:var(--blue); font-weight:700; text-transform:uppercase; }
.section-head h2{ font-size:clamp(1.6rem,3vw,2.2rem); margin-top:8px; font-weight:700; }
.section-head p{ margin-top:12px; color:var(--ink-soft); }

.card-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
@media(max-width:900px){ .card-grid{ grid-template-columns:repeat(2,1fr);} }
@media(max-width:600px){ .card-grid{ grid-template-columns:1fr;} }

.s-card{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:28px 24px;
  transition:.2s;
}
.s-card:hover{ box-shadow:var(--shadow-lg); transform:translateY(-3px); border-color:transparent; }
.s-card .icon{
  width:52px; height:52px; border-radius:14px; background:var(--surface-2); color:var(--blue);
  display:flex; align-items:center; justify-content:center; font-size:1.3rem; margin-bottom:16px;
}
.s-card h3{ font-size:1.05rem; font-weight:700; margin-bottom:8px; }
.s-card p{ font-size:.88rem; color:var(--ink-soft); }

/* ---------- Process timeline ---------- */
.process{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
@media(max-width:800px){ .process{ grid-template-columns:repeat(2,1fr);} }
.proc-item{ position:relative; background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:24px 20px; }
.proc-item .num{ font-size:.75rem; font-weight:700; color:var(--blue); letter-spacing:.08em; }
.proc-item h4{ font-size:.95rem; font-weight:700; margin:8px 0 6px; }
.proc-item p{ font-size:.8rem; color:var(--ink-soft); }

/* ---------- Portfolio ---------- */
.portfolio-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
@media(max-width:900px){ .portfolio-grid{ grid-template-columns:repeat(2,1fr);} }
@media(max-width:600px){ .portfolio-grid{ grid-template-columns:1fr;} }
.p-card{ background:#fff; border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; }
.p-thumb{
  height:170px; background:linear-gradient(135deg,var(--navy),var(--navy-2));
  display:flex; flex-direction:column; align-items:center; justify-content:center; color:#8fa3c9; font-size:.78rem; gap:8px;
}
.p-body{ padding:18px 20px 22px; }
.p-body .tag{ font-size:.68rem; color:var(--blue); font-weight:700; letter-spacing:.06em; text-transform:uppercase; }
.p-body h3{ font-size:1rem; font-weight:700; margin:6px 0 6px; }
.p-body p{ font-size:.82rem; color:var(--ink-soft); }

/* ---------- CTA band ---------- */
.cta-band{ background:linear-gradient(135deg,var(--blue),var(--red)); color:#fff; padding:56px 0; text-align:center; }
.cta-band h2{ font-size:clamp(1.5rem,3vw,2rem); font-weight:700; }
.cta-band p{ margin-top:10px; color:rgba(255,255,255,.9); }
.cta-band .btn-white{ margin-top:22px; }

/* ---------- Footer ---------- */
.site-footer{ background:var(--navy); color:#9fb0cc; padding:50px 0 24px; }
.footer-grid{ display:grid; grid-template-columns:2fr 1fr 1fr 1.4fr; gap:30px; }
@media(max-width:800px){ .footer-grid{ grid-template-columns:1fr 1fr;} }
.footer-grid h4{ color:#fff; font-size:.92rem; margin-bottom:14px; }
.footer-grid p{ font-size:.85rem; line-height:1.8; }
.footer-grid ul li{ margin-bottom:8px; font-size:.85rem; }
.footer-grid ul a:hover{ color:var(--blue-light); }
.social-row{ display:flex; align-items:center; gap:14px; }
.social-row a{
  width:38px; height:38px; border-radius:50%; background:rgba(255,255,255,.08);
  display:flex; align-items:center; justify-content:center; font-size:.85rem;
  border:1px solid rgba(255,255,255,.15);
}
.social-row a:hover{ background:var(--blue); border-color:var(--blue); }
.footer-bottom{
  margin-top:36px; padding-top:20px; border-top:1px solid rgba(255,255,255,.08);
  font-size:.78rem; text-align:center; color:#6c7fa8;
}

/* ---------- Generic page hero (inner pages) ---------- */
.page-hero{
  background:linear-gradient(180deg, var(--navy), var(--navy-2));
  color:#fff; padding:56px 0; text-align:center;
}
.page-hero .eyebrow{ color:var(--blue-light); }
.page-hero h1{ font-size:clamp(1.8rem,3.6vw,2.6rem); font-weight:700; margin-top:8px; }
.page-hero p{ color:#c7d2e8; margin-top:10px; max-width:560px; margin-left:auto; margin-right:auto; }
.breadcrumb{ font-size:.78rem; color:#9fb0cc; margin-bottom:10px; }
.breadcrumb a{ color:#9fb0cc; }
.breadcrumb a:hover{ color:#fff; }

/* ---------- About page ---------- */
.about-grid{ display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:center; }
@media(max-width:800px){ .about-grid{ grid-template-columns:1fr; } }
.photo-block{
  aspect-ratio:4/3; border-radius:var(--radius); overflow:hidden;
  box-shadow:var(--shadow);
}
.photo-block img{ width:100%; height:100%; object-fit:cover; }
.value-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
@media(max-width:700px){ .value-grid{ grid-template-columns:1fr; } }
.value-grid .v{ text-align:center; background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:26px 16px; }
.value-grid .v .icon{ width:44px; height:44px; border-radius:12px; background:var(--surface-2); color:var(--blue); display:flex; align-items:center; justify-content:center; margin:0 auto 10px; font-size:1.1rem; }

/* ---------- Contact page ---------- */
.contact-grid{ display:grid; grid-template-columns:1.1fr .9fr; gap:40px; }
@media(max-width:850px){ .contact-grid{ grid-template-columns:1fr; } }
.form-card, .info-card{ background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:30px; box-shadow:var(--shadow); }
.field{ margin-bottom:18px; }
.field label{ display:block; font-size:.85rem; font-weight:600; margin-bottom:6px; }
.field input, .field textarea, .field select{
  width:100%; padding:12px 14px; border:1.5px solid var(--line); border-radius:var(--radius-sm);
  font-family:inherit; font-size:.9rem; background:var(--surface);
}
.field input:focus, .field textarea:focus, .field select:focus{ outline:none; border-color:var(--blue); }
.form-note{ font-size:.78rem; color:var(--ink-soft); margin-top:10px; }
.info-card h4{ font-size:.9rem; color:var(--blue); margin:18px 0 6px; }
.info-card h4:first-child{ margin-top:0; }
.info-card p{ font-size:.9rem; }
.map-block{
  margin-top:18px; height:180px; border-radius:var(--radius-sm); background:linear-gradient(135deg,var(--navy),var(--navy-2));
  display:flex; align-items:center; justify-content:center; color:#8fa3c9; font-size:.78rem; text-align:center;
}
.form-success{
  display:none; background:#e6f9ee; border:1px solid #a3e6c1; color:#1a7f4f; border-radius:var(--radius-sm);
  padding:14px 18px; font-size:.85rem; margin-bottom:18px;
}

.notice-banner{
  background:#e7f0ff; border:1px dashed var(--blue); color:#1e4fc4; border-radius:var(--radius-sm);
  padding:14px 18px; font-size:.85rem; margin-bottom:36px; text-align:center;
}