/* =============================================
   SUMMIT LABS — Calm Mountain Lake Theme
   ============================================= */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Light mountain lake palette */
  --bg:          #f0f5f2;
  --surface:     rgba(255, 255, 255, 0.65);
  --surface-hov: rgba(255, 255, 255, 0.86);
  --border:      rgba(255, 255, 255, 0.75);
  --border-hov:  rgba(255, 255, 255, 0.97);
  --text-1:      #0b1d12;
  --text-2:      rgba(11, 29, 18, 0.58);
  --text-3:      rgba(11, 29, 18, 0.34);

  /* Accent palette */
  --forest:      #2a6445;
  --forest-dark: #1c4d33;
  --sage:        #4e8264;
  --ocean:       #1a6898;
  --sky:         #3d96bc;

  /* Glass */
  --glass-blur:  24px;
  --glass-sat:   1.85;

  /* Shape */
  --radius-sm:   12px;
  --radius-md:   18px;
  --radius-lg:   26px;
  --radius-xl:   36px;
  --radius-pill: 999px;

  /* Layout */
  --max-w:  1080px;
  --nav-h:  64px;

  /* Motion */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-1);
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { text-decoration: none; color: inherit; }

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

.glass-nav,
.glass-card {
  background: var(--surface);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  border: 1px solid var(--border);
}

/* =============================================
   NAVIGATION
   ============================================= */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 0 28px;
}

.wordmark {
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--text-1);
  flex-shrink: 0;
  transition: opacity 0.2s var(--ease);
}
.wordmark:hover { opacity: 0.58; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-2);
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.nav-link:hover {
  color: var(--text-1);
  background: rgba(42, 100, 69, 0.08);
}

.nav-cta {
  font-size: 0.875rem;
  font-weight: 600;
  color: #fff;
  padding: 9px 22px;
  border-radius: var(--radius-pill);
  background: var(--forest);
  flex-shrink: 0;
  transition: background 0.2s var(--ease), transform 0.15s var(--ease);
}
.nav-cta:hover {
  background: var(--forest-dark);
  transform: translateY(-1px);
}

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

.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.mountain-scene {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.mountain-scene svg {
  width: 100%;
  height: 100%;
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding: calc(var(--nav-h) + 40px) 24px 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

/* The signature Liquid Glass card */
.hero-glass {
  background: rgba(255, 255, 255, 0.52);
  backdrop-filter: blur(28px) saturate(var(--glass-sat));
  -webkit-backdrop-filter: blur(28px) saturate(var(--glass-sat));
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: var(--radius-xl);
  padding: 60px 72px;
  max-width: 700px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
  box-shadow:
    0 12px 60px rgba(11, 29, 18, 0.10),
    0 2px 0 rgba(255, 255, 255, 0.60) inset;
}

.eyebrow {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sage);
}

.hero-heading {
  font-size: clamp(3rem, 7.5vw, 5.2rem);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -0.04em;
  color: var(--text-1);
}

.hero-accent {
  background: linear-gradient(130deg, var(--forest) 0%, var(--ocean) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.1rem);
  font-weight: 400;
  line-height: 1.70;
  color: var(--text-2);
  max-width: 460px;
}

.br-desk { display: inline; }

.hero-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 6px;
}

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

.btn-forest {
  display: inline-flex;
  align-items: center;
  background: var(--forest);
  color: #fff;
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 13px 28px;
  border-radius: var(--radius-pill);
  letter-spacing: -0.01em;
  box-shadow: 0 4px 20px rgba(42, 100, 69, 0.38);
  transition: background 0.2s var(--ease), transform 0.18s var(--ease), box-shadow 0.2s var(--ease);
}
.btn-forest:hover {
  background: var(--forest-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(42, 100, 69, 0.46);
}
.btn-forest:active { transform: translateY(0); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 13px 22px;
  border-radius: var(--radius-pill);
  color: var(--text-2);
  background: rgba(255, 255, 255, 0.52);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(42, 100, 69, 0.18);
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.80);
  border-color: rgba(42, 100, 69, 0.30);
  color: var(--text-1);
}

/* =============================================
   SECTION SHELL
   ============================================= */

.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 28px;
}

.section-header {
  margin-bottom: 52px;
  max-width: 580px;
}

.section-label {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sage);
  margin-bottom: 14px;
}

.section-heading {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.038em;
  line-height: 1.12;
  color: var(--text-1);
  margin-bottom: 14px;
}

.section-sub {
  font-size: 1.0625rem;
  line-height: 1.68;
  color: var(--text-2);
}

/* =============================================
   SERVICES
   ============================================= */

.services {
  padding: 128px 0 88px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(285px, 1fr));
  gap: 18px;
}

.glass-card {
  border-radius: var(--radius-lg);
  transition:
    background 0.25s var(--ease),
    border-color 0.25s var(--ease),
    transform 0.25s var(--ease),
    box-shadow 0.25s var(--ease);
}
.glass-card:hover {
  background: var(--surface-hov);
  border-color: var(--border-hov);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(11, 29, 18, 0.09);
}

.service-card {
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.service-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.forest-icon {
  background: linear-gradient(135deg, rgba(42,100,69,0.16), rgba(42,100,69,0.05));
  border: 1px solid rgba(42,100,69,0.20);
  color: var(--forest);
}

.ocean-icon {
  background: linear-gradient(135deg, rgba(26,104,152,0.16), rgba(26,104,152,0.05));
  border: 1px solid rgba(26,104,152,0.20);
  color: var(--ocean);
}

.sage-icon {
  background: linear-gradient(135deg, rgba(78,130,100,0.16), rgba(78,130,100,0.05));
  border: 1px solid rgba(78,130,100,0.20);
  color: var(--sage);
}

.service-title {
  font-size: 1rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--text-1);
  line-height: 1.3;
}

.service-desc {
  font-size: 0.9375rem;
  line-height: 1.68;
  color: var(--text-2);
}

/* =============================================
   PRODUCTS
   ============================================= */

.projects {
  padding: 40px 0 108px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 18px;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 32px;
  cursor: pointer;
}

.card-icon {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.kairos-icon {
  background: linear-gradient(135deg, rgba(42,100,69,0.16), rgba(42,100,69,0.05));
  border: 1px solid rgba(42,100,69,0.20);
  color: var(--forest);
}

.subtex-icon {
  background: linear-gradient(135deg, rgba(26,104,152,0.16), rgba(26,104,152,0.05));
  border: 1px solid rgba(26,104,152,0.20);
  color: var(--ocean);
}

.card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 650;
  letter-spacing: -0.025em;
  color: var(--text-1);
}

.card-desc {
  font-size: 0.9375rem;
  line-height: 1.68;
  color: var(--text-2);
}

.card-footer {
  border-top: 1px solid rgba(11, 29, 18, 0.08);
  padding-top: 18px;
}

.card-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-3);
  transition: color 0.2s var(--ease);
}
.card:hover .card-link { color: var(--forest); }

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

.contact {
  padding: 40px 0 128px;
}

.contact-inner {
  display: flex;
  justify-content: center;
}

.contact-card {
  padding: 72px 56px;
  text-align: center;
  max-width: 600px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.contact-heading {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.038em;
  color: var(--text-1);
}

.contact-sub {
  font-size: 1rem;
  line-height: 1.70;
  color: var(--text-2);
  max-width: 400px;
}

.contact-btn { margin-top: 12px; }

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

.footer {
  border-top: 1px solid rgba(11, 29, 18, 0.10);
  padding: 28px 28px;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8125rem;
  color: var(--text-3);
  flex-wrap: wrap;
}

.footer-sep { opacity: 0.4; }
.footer-copy { margin-left: auto; }

/* =============================================
   RESPONSIVE
   ============================================= */

@media (max-width: 760px) {
  .nav-links { display: none; }
  .hero-glass { padding: 44px 32px; }
}

@media (max-width: 540px) {
  .br-desk { display: none; }
  .hero-glass { padding: 36px 24px; border-radius: var(--radius-lg); }
  .hero-heading { letter-spacing: -0.03em; }
  .card, .service-card { padding: 24px; }
  .contact-card { padding: 44px 24px; }
  .nav-inner { padding: 0 16px; gap: 16px; }
  .footer-copy { margin-left: 0; }
}

/* =============================================
   SCROLL ENTRANCE
   ============================================= */

@media (prefers-reduced-motion: no-preference) {
  .service-card,
  .card,
  .contact-card {
    opacity: 0;
    transform: translateY(22px);
    animation: fadeUp 0.65s var(--ease) forwards;
  }
  .service-card:nth-child(1) { animation-delay: 0.08s; }
  .service-card:nth-child(2) { animation-delay: 0.17s; }
  .service-card:nth-child(3) { animation-delay: 0.26s; }
  .card:nth-child(1)         { animation-delay: 0.10s; }
  .card:nth-child(2)         { animation-delay: 0.20s; }
  .contact-card              { animation-delay: 0.08s; }
}

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}