/* ========== THEME TOKENS ========== */
:root {
  --brand: #3FA35B;
  --brand-accent: #5bc978;
  --bg: #0b0f19;
  --bg-alt: #111b2b;
  --text: #e6e9ef;
  --muted: #9aa3b2;
  --card: #111727;
  --radius: 16px;
  --surface: rgba(255,255,255,.06);
  --surface-alt: rgba(255,255,255,.1);
  --shadow: 0 6px 18px -4px rgba(0,0,0,.4);
  --wrap: 1180px;
  --gutter: clamp(14px, 2vw, 28px);
  --font-stack: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  --ease: cubic-bezier(.4,.2,.2,1);
}
html[data-theme="light"] {
  --bg: #f7fafc;
  --bg-alt: #fff;
  --text: #0b1220;
  --muted: #465468;
  --card: #fff;
  --surface: rgba(0,0,0,.06);
  --surface-alt: rgba(0,0,0,.08);
  --shadow: 0 6px 18px -4px rgba(0,0,0,.15);
}

/* ========== BASE ========== */
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 16px/1.6 var(--font-stack);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
::selection {
  background: color-mix(in oklab, var(--brand) 45%, transparent);
  color: var(--text);
}

/* ========== TYPOGRAPHY ========== */
h1, h2, h3, h4 {
  line-height: 1.15;
  font-weight: 600;
  margin: 0 0 .6em;
}
h1 { font-size: clamp(2rem, 3.6vw + .5rem, 3.2rem); }
h2 { font-size: clamp(1.4rem, 1.8vw + .4rem, 2.1rem); }
h3 { font-size: clamp(1.15rem, 1.1vw + .5rem, 1.4rem); }
p, ul, ol { margin: 0 0 1.1em; }
ul, ol { padding-left: 1.2em; }

/* ========== LAYOUT ========== */
.container, .wrap, .site-main > section, .site-main > .content {
  width: min(var(--wrap), 100% - 2 * var(--gutter));
  margin-inline: auto;
}
.site-main {
  padding: clamp(32px, 6vh, 80px) 0 60px;
}
.site-main > section {
  padding-top: clamp(10px, 2vh, 30px);
  padding-bottom: clamp(10px, 2vh, 30px);
}
.content { padding: 0 0 10px; }
.content p, .prose p { max-width: 72ch; }
.prose { max-width: 72ch; margin: 0 auto; }

/* ========== UTILITIES ========== */
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.flow > * + * { margin-top: var(--flow-gap, 1em); }

/* ========== CARDS ========== */
.cards {
  --gap: clamp(16px, 2.2vw, 28px);
  display: grid;
  gap: var(--gap);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.cards:not(.portfolio) { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card {
  background: var(--card);
  padding: clamp(16px, 1.5vw, 26px);
  border-radius: var(--radius);
  border: 1px solid var(--surface);
  position: relative;
  overflow: hidden;
  isolation: isolate;
  box-shadow: var(--shadow);
  transition: transform .25s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease);
}
.card:before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(145deg, rgba(255,255,255,.05), transparent);
  opacity: .6;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px -6px rgba(0,0,0,.45);
  border-color: var(--surface-alt);
}
.card h3 { margin-top: 0; font-size: 1.05rem; }
.cards.portfolio .card h3 { font-size: 1rem; }
.cards.portfolio .portfolio-logo {
  max-width: 140px;
  max-height: 60px;
  object-fit: contain;
  margin-bottom: 12px;
  filter: drop-shadow(0 1px 4px rgba(0, 0, 0, 0));
}

/* ========== BUTTONS ========== */
.btn {
  --btn-bg: var(--surface);
  --btn-color: var(--text);
  appearance: none;
  border: 1px solid var(--surface);
  padding: 10px 16px;
  border-radius: 12px;
  color: var(--btn-color);
  text-decoration: none;
  display: inline-flex;
  gap: 8px;
  align-items: center;
  font-weight: 500;
  letter-spacing: .3px;
  background: var(--btn-bg);
  backdrop-filter: saturate(160%) blur(6px);
  transition: background .25s var(--ease), transform .2s var(--ease), box-shadow .3s var(--ease);
}
.btn:hover {
  transform: translateY(-2px);
  background: var(--surface-alt);
}
.btn:active { transform: translateY(0) scale(.97); }
.btn.primary {
  --btn-bg: linear-gradient(135deg, var(--brand), var(--brand-accent));
  --btn-color: #fff;
  border: none;
  box-shadow: 0 10px 20px -6px color-mix(in oklab, var(--brand) 55%, transparent);
}
.btn.primary:hover {
  box-shadow: 0 14px 26px -6px color-mix(in oklab, var(--brand) 65%, transparent);
}
/* Header Contact button legacy style refinement */
.header .actions .btn.primary{font-weight:700;padding:10px 20px;border-radius:18px;background:linear-gradient(135deg,var(--brand),color-mix(in oklab,var(--brand) 65%, #ffffff));box-shadow:0 10px 18px color-mix(in oklab,var(--brand) 30%, transparent)}
.header .actions .btn.primary:hover{box-shadow:0 14px 24px -4px color-mix(in oklab,var(--brand) 40%, transparent)}
/* Icon-only variant */
.btn.icon-only{padding:10px 12px;border-radius:14px;justify-content:center}
.header .actions .btn.icon-only{padding:10px 14px;border-radius:18px}
/* Responsive Contact button: shows label on wider screens, icon only on narrow */
.contact-btn .icon{display:none}
@media (max-width: 640px){
  .contact-btn{padding:10px 14px;gap:0}
  .contact-btn .label{display:none}
  .contact-btn .icon{display:inline-flex}
}

/* ========== HEADER / NAV ========== */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all .4s var(--ease);
  background: rgba(20,28,40,.55);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--surface);
}
html[data-theme="light"] .header { background: rgba(255,255,255,.6); }
.header.compact { padding: 10px 0; }
.header.expanded { padding: 22px 0; box-shadow: var(--shadow); }
.header .header-inner {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  letter-spacing: .5px;
}
.brand img {
  height: 60px;
  width: auto;
  object-fit: contain;
  border-radius: 10px; /* shadow removed per request */
  filter: none;
}
.nav {
  display: flex;
  gap: clamp(10px, 1.6vw, 26px);
  align-items: center;
}
.nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 12px;
  font-weight: 500;
  font-size: .92rem;
  line-height: 1.2;
  position: relative;
  transition: color .25s var(--ease), background .25s var(--ease);
}
.nav a:before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(120deg, color-mix(in oklab, var(--brand) 18%, transparent), transparent);
  opacity: 0;
  transition: opacity .3s var(--ease);
}
.nav a:hover:before { opacity: 1; }
.nav a:hover { color: var(--text); }
.nav a.is-active {
  color: var(--text);
  background: color-mix(in oklab, var(--brand) 28%, transparent);
}
.actions { display: flex; align-items: center; gap: 14px; }
#theme-toggle {
  border: 1px solid var(--surface);
  background: none;
  border-radius: 12px;
  padding: 8px 12px;
  cursor: pointer;
  line-height: 1;
  font-size: 18px;
  transition: background .25s var(--ease), transform .2s var(--ease);
}
#theme-toggle:hover {
  background: var(--surface-alt);
  transform: translateY(-1px);
}
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--surface);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 12px;
}
@media (max-width: 860px) {
  .nav {
    display: none;
    position: absolute;
    right: 4%;
    top: 72px;
    background: var(--card);
    padding: 14px;
    border-radius: 16px;
    flex-direction: column;
    box-shadow: 0 18px 28px -10px rgba(0,0,0,.55);
  }
  html[data-theme="light"] .nav { background: #fff; }
  .nav.open { display: flex; }
  .nav a { width: 100%; }
  .nav-toggle { display: inline-block; }
}

/* ========== HERO ========== */
.hero {
  padding: clamp(70px, 14vh, 140px) 0 clamp(30px, 8vh, 80px);
  text-align: center;
}
.hero h1 {
  margin: 0 0 12px;
  font-weight: 700;
  font-size: clamp(28px, 4vw + 8px, 46px);
}
.hero p {
  color: var(--muted);
  margin: 0 auto 22px;
  max-width: 740px;
  font-size: 1.05rem;
}
.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin: 24px 0 10px;
}
.trust-strip {
  list-style: none;
  display: flex;
  gap: 22px;
  padding: 0;
  margin: 18px 0 0;
  justify-content: center;
  color: var(--muted);
  flex-wrap: wrap;
  font-size: .9rem;
}

/* ========== SECTIONS ========== */
section + section {
  border-top: 1px solid var(--surface);
  margin-top: clamp(30px, 6vh, 70px);
  padding-top: clamp(30px, 6vh, 70px);
}

/* ========== PORTFOLIO PAGE SPECIFICS ========== */
.portfolio-page{--flow-gap:2.2rem}
.portfolio-page .section-head{margin-bottom:clamp(1.8rem,4vh,3rem)}
.portfolio-page .section-head .lead{color:var(--muted);max-width:68ch;font-size:1.05rem;margin:0}
.portfolio-group{margin-bottom:clamp(2.5rem,6vh,4.5rem)}
.portfolio-group + .portfolio-group{border-top:1px solid var(--surface);padding-top:clamp(2.5rem,6vh,4.5rem);margin-top:0}
.group-title{font-size:1.25rem;letter-spacing:.5px;margin:0 0 1rem;font-weight:600;position:relative;padding-left:.9rem}
.group-title:before{content:'';position:absolute;left:0;top:.25em;height:1.2em;width:4px;border-radius:3px;background:linear-gradient(var(--brand),var(--brand-accent))}
.clients-grid{grid-auto-rows:1fr}
.clients-grid .card{display:flex;flex-direction:column;justify-content:space-between;align-items:center;min-height:220px;padding:32px 28px;}
.clients-grid .card h3{font-size:.9rem;line-height:1.25;margin:0 0 .35rem;font-weight:600}
.clients-grid .card p{font-size:.75rem;line-height:1.35;color:var(--muted);margin:0}
.projects-list{display:grid;gap:clamp(14px,1.6vw,22px);grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.project-card{background:var(--bg-alt);box-shadow:none;border-color:var(--surface);transition:background .35s var(--ease), transform .25s var(--ease)}
.clients-grid{list-style:none;margin:0;padding:0;--logo-h:70px;--logo-box:88px}
.clients-grid .portfolio-logo{max-height:var(--logo-h);width:auto;object-fit:contain}
.client-figure{margin:0;display:flex;flex-direction:column;align-items:center;gap:18px;height:100%;width:100%}
.client-figure::before{content:"";display:block;height:var(--logo-box);width:100%;max-width:160px;align-self:center;display:flex}
.client-figure img{margin-top:calc((var(--logo-box) - var(--logo-h))/2);}
.client-caption{margin-top:auto;text-align:center;display:flex;flex-direction:column;gap:2px}
.client-caption small{font-size:.6rem;color:var(--muted);letter-spacing:.3px}
.client-figure{margin:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;height:100%}
.client-caption{margin:0;text-align:center;font-size:.7rem;line-height:1.25;display:flex;flex-direction:column;gap:2px}
.project-card:hover{background:var(--card);transform:translateY(-3px)}
.project-card h3{font-size:.95rem;margin:0 0 .5rem}
.project-card p{font-size:.8rem;margin:0;color:var(--muted);line-height:1.4}
.portfolio-logo{mix-blend-mode:normal}
html[data-theme='light'] .project-card{background:var(--card)}
.solutions-group .project-card{background:var(--card);border-style:dashed}
.solutions-list .project-card h3{color:var(--brand)}
.muted{color:var(--muted)}

/* ========== FORMS ========== */
.form {
  display: grid;
  gap: 14px;
  max-width: 560px;
  margin-left: auto; /* center horizontally */
  margin-right: auto;
}
.form input, .form textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--surface);
  background: rgba(255,255,255,.04);
  color: var(--text);
  font: inherit;
}
.form textarea { min-height: 140px; resize: vertical; }

/* ========== FLASH MESSAGES ========== */
.flash {
  margin: 14px 0 24px;
  padding: 12px 16px;
  border-radius: 14px;
  font-size: .92rem;
}
.flash.ok {
  background: color-mix(in oklab, var(--brand) 16%, transparent);
  border: 1px solid color-mix(in oklab, var(--brand) 46%, transparent);
}
.flash.err {
  background: rgba(239,68,68,.12);
  border: 1px solid rgba(239,68,68,.35);
}

/* ========== FOOTER ========== */
.footer {
  padding: 50px 0 60px;
  color: var(--muted);
  text-align: center;
  border-top: 1px solid var(--surface);
  margin-top: 40px;
}
.footer .container {
  width: min(var(--wrap), 100% - 2 * var(--gutter));
  margin-inline: auto;
}
.footer p {
  margin: 0;
  font-size: .85rem;
  letter-spacing: .4px;
}

/* ========== ANIMATIONS ========== */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .5s var(--ease), transform .6s var(--ease);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* ========== TRANSITIONS ========== */
body, .header, .card, .nav a, .btn, .footer {
  transition: background-color .5s var(--ease), color .5s var(--ease), border-color .5s var(--ease);
}

/* ===== Client card spacing tweak (reduce dead space) ===== */
.clients-grid{--logo-h:60px;--logo-box:70px}
.clients-grid .card{min-height:190px;padding:22px 24px}
.client-figure{gap:12px}
.client-figure::before{display:none}
.client-figure img{margin-top:0 !important;max-height:var(--logo-h)}

/* ========== MODAL (CONTACT FORM) ========== */
.modal{position:fixed;inset:0;display:flex;align-items:flex-start;justify-content:center;padding:clamp(40px,6vh,80px) var(--gutter);background:rgba(10,16,25,.72);backdrop-filter:saturate(160%) blur(12px);opacity:0;pointer-events:none;transition:opacity .35s var(--ease)}
.modal.open{opacity:1;pointer-events:auto}
html[data-theme='light'] .modal{background:rgba(255,255,255,.65)}
.modal-content{background:var(--card);width:min(620px,100%);border-radius:24px;padding:clamp(24px,2.6vw,40px);box-shadow:0 30px 50px -18px rgba(0,0,0,.55);position:relative;border:1px solid var(--surface);animation:scaleIn .45s var(--ease)}
.modal-title{margin:0 0 14px;font-size:1.4rem;letter-spacing:.5px}
.modal-close{position:absolute;top:10px;right:12px;background:none;border:1px solid var(--surface);width:38px;height:38px;border-radius:12px;cursor:pointer;font-size:20px;line-height:1;color:var(--text);display:grid;place-items:center;transition:background .25s var(--ease), transform .25s var(--ease)}
.modal-close:hover{background:var(--surface-alt);transform:rotate(90deg)}
body.modal-open{overflow:hidden}
@keyframes scaleIn{from{transform:translateY(18px) scale(.96);opacity:0}to{transform:translateY(0) scale(1);opacity:1}}


/* ========== REDUCE MOTION ========== */
@media (prefers-reduced-motion: reduce) {
  *, *:before, *:after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}