/* ============================================================
   GeoStack — output.css
   Tailwind base + all custom component styles
   ============================================================ */

/* ---------- Tailwind base reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; line-height: 1.5; -webkit-text-size-adjust: 100%; }

/* ---------- CSS Custom Properties ---------- */
:root {
  --blue: #2B7FE8;
  --blue-light: #5B9FF0;
  --blue-pale: #EBF3FD;
  --orange: #F57C2B;
  --orange-pale: #FEF0E6;
  --gray: #6B7280;
  --gray-dark: #1F2937;
  --gray-mid: #4B5563;
  --gray-light: #9CA3AF;
  --border: #E5E7EB;
  --bg: #FFFFFF;
  --bg-soft: #F9FAFB;
  --bg-softer: #F3F4F6;
}

/* ---------- Base ---------- */
body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--gray-dark);
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ---------- Tailwind-compatible utility classes ---------- */
.fixed   { position: fixed; }
.absolute { position: absolute; }
.relative { position: relative; }
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.top-0   { top: 0; }
.left-0  { left: 0; }
.right-0 { right: 0; }
.bottom-0 { bottom: 0; }
.z-10 { z-index: 10; }
.z-50 { z-index: 50; }

.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }

.items-center { align-items: center; }
.items-start  { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center  { justify-content: center; }
.flex-col { flex-direction: column; }
.flex-shrink-0 { flex-shrink: 0; }
.flex-wrap { flex-wrap: wrap; }

.gap-2   { gap: 0.5rem; }
.gap-2\.5 { gap: 0.625rem; }
.gap-3   { gap: 0.75rem; }
.gap-4   { gap: 1rem; }
.gap-5   { gap: 1.25rem; }
.gap-6   { gap: 1.5rem; }
.gap-8   { gap: 2rem; }
.gap-10  { gap: 2.5rem; }
.gap-16  { gap: 4rem; }

.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.col-span-2  { grid-column: span 2; }

.w-full    { width: 100%; }
.w-auto    { width: auto; }
.h-full    { height: 100%; }
.w-3\.5    { width: 0.875rem; }
.w-4  { width: 1rem; }
.w-5  { width: 1.25rem; }
.w-9  { width: 2.25rem; }
.h-4  { height: 1rem; }
.h-5  { height: 1.25rem; }
.h-8  { height: 2rem; }
.h-9  { height: 2.25rem; }
.h-10 { height: 2.5rem; }
.h-11 { height: 2.75rem; }
.h-16 { height: 4rem; }
.h-px { height: 1px; }
.w-px { width: 1px; }
.w-1\.5 { width: 0.375rem; }
.h-1\.5 { height: 0.375rem; }
.w-2  { width: 0.5rem; }
.h-2  { height: 0.5rem; }
.w-3  { width: 0.75rem; }
.h-3  { height: 0.75rem; }
.min-h-screen { min-height: 100vh; }

.max-w-xs  { max-width: 20rem; }
.max-w-xl  { max-width: 36rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-4xl { max-width: 56rem; }
.max-w-5xl { max-width: 64rem; }
.max-w-6xl { max-width: 72rem; }
.max-w-7xl { max-width: 80rem; }
.mx-auto   { margin-left: auto; margin-right: auto; }

.p-3  { padding: 0.75rem; }
.p-4  { padding: 1rem; }
.p-6  { padding: 1.5rem; }
.p-8  { padding: 2rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-5 { padding-left: 1.25rem; padding-right: 1.25rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-7 { padding-left: 1.75rem; padding-right: 1.75rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
.px-9 { padding-left: 2.25rem; padding-right: 2.25rem; }
.px-10 { padding-left: 2.5rem; padding-right: 2.5rem; }
.py-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.py-1\.5 { padding-top: 0.375rem; padding-bottom: 0.375rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-2\.5 { padding-top: 0.625rem; padding-bottom: 0.625rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-3\.5 { padding-top: 0.875rem; padding-bottom: 0.875rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.py-20 { padding-top: 5rem; padding-bottom: 5rem; }
.py-24 { padding-top: 6rem; padding-bottom: 6rem; }
.py-28 { padding-top: 7rem; padding-bottom: 7rem; }
.pt-8  { padding-top: 2rem; }
.pt-16 { padding-top: 4rem; }
.pt-36 { padding-top: 9rem; }
.pb-12 { padding-bottom: 3rem; }
.pb-16 { padding-bottom: 4rem; }
.pb-20 { padding-bottom: 5rem; }
.pb-24 { padding-bottom: 6rem; }
.mb-0\.5 { margin-bottom: 0.125rem; }
.mb-1  { margin-bottom: 0.25rem; }
.mb-1\.5 { margin-bottom: 0.375rem; }
.mb-2  { margin-bottom: 0.5rem; }
.mb-3  { margin-bottom: 0.75rem; }
.mb-4  { margin-bottom: 1rem; }
.mb-5  { margin-bottom: 1.25rem; }
.mb-6  { margin-bottom: 1.5rem; }
.mb-7  { margin-bottom: 1.75rem; }
.mb-8  { margin-bottom: 2rem; }
.mb-10 { margin-bottom: 2.5rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-16 { margin-bottom: 4rem; }
.mt-2  { margin-top: 0.5rem; }
.mt-4  { margin-top: 1rem; }
.ml-\[-6px\] { margin-left: -6px; }
.mr-2  { margin-right: 0.5rem; }
.ml-3  { margin-left: 0.75rem; }
.space-y-1\.5 > * + * { margin-top: 0.375rem; }
.space-y-2\.5 > * + * { margin-top: 0.625rem; }
.space-y-5 > * + * { margin-top: 1.25rem; }

.text-xs  { font-size: 0.75rem; line-height: 1rem; }
.text-sm  { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.text-lg  { font-size: 1.125rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.font-medium  { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold    { font-weight: 700; }
.font-extrabold { font-weight: 800; }
.font-mono    { font-family: ui-monospace, monospace; }
.tracking-widest { letter-spacing: 0.1em; }
.leading-tight   { line-height: 1.25; }
.leading-relaxed { line-height: 1.625; }
.text-center  { text-align: center; }

.rounded-lg  { border-radius: 0.5rem; }
.rounded-xl  { border-radius: 0.75rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-3xl { border-radius: 1.5rem; }
.rounded-full { border-radius: 9999px; }
.rounded-sm   { border-radius: 0.125rem; }

.border   { border-width: 1px; border-style: solid; }
.border-t { border-top-width: 1px; border-top-style: solid; }
.border-b { border-bottom-width: 1px; border-bottom-style: solid; }
.border-transparent { border-color: transparent; }

.shadow-sm  { box-shadow: 0 1px 2px rgba(0,0,0,.05); }
.shadow-lg  { box-shadow: 0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05); }
.overflow-hidden { overflow: hidden; }
.overflow-x-hidden { overflow-x: hidden; }
.overflow-auto   { overflow: auto; }
.pointer-events-none { pointer-events: none; }
.select-none    { user-select: none; }
.cursor-pointer { cursor: pointer; }
.resize-none    { resize: none; }
.opacity-0  { opacity: 0; }
.opacity-40 { opacity: 0.4; }
.opacity-30 { opacity: 0.3; }

.transition-opacity { transition: opacity 0.2s; }
.transition-colors  { transition: color 0.2s, background-color 0.2s, border-color 0.2s; }
.animate-pulse { animation: pulse 2s cubic-bezier(.4,0,.6,1) infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.5} }

.translate-x-1\/2 { transform: translateX(50%); }
.-translate-x-1\/2 { transform: translateX(-50%); }

.bg-gray-500 { background-color: #6B7280; }
.bg-sky-400  { background-color: #38BDF8; }
.bg-green-400 { background-color: #4ADE80; }
.text-amber-500 { color: #F59E0B; }
.bg-amber-400 { background-color: #FBBF24; }

/* Responsive helpers */
@media (min-width: 640px) {
  .sm\:flex-row { flex-direction: row; }
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sm\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .sm\:col-span-1 { grid-column: span 1; }
}
@media (min-width: 768px) {
  .md\:flex   { display: flex; }
  .md\:hidden { display: none; }
  .md\:inline-flex { display: inline-flex; }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .md\:col-span-2  { grid-column: span 2; }
  .md\:flex-row    { flex-direction: row; }
  .md\:p-10 { padding: 2.5rem; }
}
@media (min-width: 1024px) {
  .lg\:px-12   { padding-left: 3rem; padding-right: 3rem; }
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg\:col-span-2  { grid-column: span 2; }
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-soft); }
::-webkit-scrollbar-thumb { background: rgba(43,127,232,.3); border-radius: 3px; }

/* ---------- Backgrounds ---------- */
.grid-bg {
  background-image:
    linear-gradient(rgba(43,127,232,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(43,127,232,.06) 1px, transparent 1px);
  background-size: 60px 60px;
}
.dot-pattern {
  background-image: radial-gradient(rgba(43,127,232,.12) 1px, transparent 1px);
  background-size: 28px 28px;
}

/* ---------- Nav ---------- */
nav {
  transition: background .3s, backdrop-filter .3s, box-shadow .3s;
}
nav.scrolled {
  background: rgba(255,255,255,.92) !important;
  backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border), 0 4px 24px rgba(0,0,0,.06) !important;
}
#mobile-menu {
  transition: max-height .4s ease, opacity .4s ease;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
}
#mobile-menu.open {
  max-height: 400px;
  opacity: 1;
}
.md\:hidden.menu-btn-wrap { display: flex; }

/* ---------- Animations ---------- */
@keyframes fadeInPage {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: none; }
}
main { animation: fadeInPage .6s ease; }

@keyframes pulse-ring {
  0%,100% { transform: scale(1); opacity: .5; }
  50%      { transform: scale(1.15); opacity: .15; }
}
.pulse-ring { animation: pulse-ring 2.5s ease-in-out infinite; }

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ---------- Hero title gradient ---------- */
.hero-title {
  background: linear-gradient(135deg, var(--gray-dark) 0%, #1a4b8a 50%, var(--blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Buttons ---------- */
.btn-primary {
  background: linear-gradient(135deg, var(--blue), #1a5fc2);
  color: #fff;
  font-family: 'Syne', sans-serif;
  font-weight: 600;
  letter-spacing: .02em;
  transition: box-shadow .3s, transform .2s;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn-primary:hover {
  box-shadow: 0 0 32px rgba(43,127,232,.4);
  transform: translateY(-1px);
}
.btn-ghost {
  border: 1.5px solid var(--border);
  color: var(--gray-dark);
  font-family: 'Syne', sans-serif;
  font-weight: 600;
  letter-spacing: .02em;
  transition: border-color .3s, background .3s, transform .2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn-ghost:hover {
  border-color: var(--blue);
  background: var(--blue-pale);
  color: var(--blue);
  transform: translateY(-1px);
}

/* ---------- Tag / Badge ---------- */
.tag {
  background: var(--blue-pale);
  border: 1px solid rgba(43,127,232,.25);
  color: var(--blue);
}
.cs-badge {
  background: linear-gradient(135deg, rgba(245,158,11,.12), rgba(245,158,11,.04));
  border: 1px solid rgba(245,158,11,.35);
  color: #d97706;
}

/* ---------- Cards ---------- */
.stat-card {
  background: var(--bg);
  border: 1px solid var(--border);
  transition: border-color .3s, box-shadow .3s;
}
.stat-card:hover {
  border-color: rgba(43,127,232,.3);
  box-shadow: 0 4px 16px rgba(43,127,232,.08);
}
.card-shimmer {
  background: var(--bg);
  border: 1px solid var(--border);
  transition: border-color .3s, box-shadow .3s, transform .3s;
}
.card-shimmer:hover {
  border-color: rgba(43,127,232,.35);
  box-shadow: 0 8px 32px rgba(43,127,232,.1);
  transform: translateY(-4px);
}
.gradient-border {
  background:
    linear-gradient(var(--bg-soft), var(--bg-soft)) padding-box,
    linear-gradient(135deg, rgba(43,127,232,.5), rgba(43,127,232,.1), rgba(245,124,43,.4)) border-box;
  border: 1.5px solid transparent;
}

/* ---------- Feature cards (index) ---------- */
.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  transition: border-color .3s, box-shadow .3s, transform .3s;
}
.feature-card:hover {
  border-color: rgba(43,127,232,.3);
  box-shadow: 0 8px 32px rgba(43,127,232,.08);
  transform: translateY(-4px);
}

/* ---------- Icon ring ---------- */
.icon-ring {
  background: var(--blue-pale);
  border: 1px solid rgba(43,127,232,.2);
}

/* ---------- Timeline (about) ---------- */
.timeline-line {
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, rgba(43,127,232,.5), rgba(43,127,232,.05));
}
.timeline-dot {
  width: 31px;
  height: 31px;
  background: var(--bg);
  border: 1.5px solid rgba(43,127,232,.5);
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---------- Product tabs ---------- */
.tab-btn {
  border: 1.5px solid var(--border);
  color: var(--gray);
  transition: all .25s;
  font-family: 'Syne', sans-serif;
  font-weight: 600;
  cursor: pointer;
}
.tab-btn.active,
.tab-btn:hover {
  border-color: rgba(43,127,232,.4);
  color: var(--blue);
  background: var(--blue-pale);
}
.tab-panel        { display: none; }
.tab-panel.active { display: block; }

/* ---------- Contact form ---------- */
.form-input {
  background: var(--bg);
  border: 1.5px solid var(--border);
  color: var(--gray-dark);
  font-family: 'DM Sans', sans-serif;
  transition: border-color .3s, box-shadow .3s;
}
.form-input:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(43,127,232,.12);
}
.form-input::placeholder { color: var(--gray-light); }
.form-label {
  color: var(--gray-mid);
  font-size: .8125rem;
  font-family: 'Syne', sans-serif;
  font-weight: 600;
  letter-spacing: .05em;
  margin-bottom: .5rem;
  display: block;
}
.contact-card {
  background: var(--bg);
  border: 1px solid var(--border);
  transition: border-color .3s, box-shadow .3s, transform .25s;
}
.contact-card:hover {
  border-color: rgba(43,127,232,.3);
  box-shadow: 0 6px 24px rgba(43,127,232,.1);
  transform: translateY(-3px);
}
.radio-option {
  border: 1.5px solid var(--border);
  background: var(--bg);
  transition: border-color .2s, background .2s;
  cursor: pointer;
}
.radio-option:hover {
  border-color: rgba(43,127,232,.4);
  background: var(--blue-pale);
}
.radio-option.selected {
  border-color: var(--blue);
  background: var(--blue-pale);
}
#success-banner {
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity .4s, transform .4s;
  pointer-events: none;
}
#success-banner.show {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}
#error-banner {
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity .4s, transform .4s;
  pointer-events: none;
}
#error-banner.show {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}