/* GeoBIM — Auros Abyssal Architecture with Official GeoBIM Brand Palette */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;1,9..40,400;1,9..40,500&display=swap');

:root {
  /* GeoBIM Official Brand Colors */
  --geobim-gold: #E5B800;
  --geobim-teal-deep: #2E5D61;
  --geobim-teal-mid: #5E8588;
  --geobim-sage: #A4B9BA;
  --geobim-ice: #D9E2E3;
  --geobim-white: #FFFFFF;

  /* Auros Abyssal Surface Stack derived from GeoBIM Teal */
  --color-abyss-canvas: #0B191B;
  --color-abyss-deep: #071213;
  --color-abyss-raised: #142E31;
  --color-abyss-hover: #1B3C40;
  --color-abyss-border: rgba(164, 185, 186, 0.15);

  /* Signature Button Gradient (GeoBIM Gold Sunburst) */
  --gradient-geobim-signature: linear-gradient(90deg, #E5B800 0%, #F5CE2D 45%, #FFE98A 100%);
  --gradient-teal-glow: linear-gradient(90deg, #2E5D61 0%, #5E8588 60%, #E5B800 100%);

  /* Typography (Matter / DM Sans) */
  --font-matter: 'DM Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-arial: 'Arial', system-ui, sans-serif;

  /* Strict Auros Shape Vocabulary */
  --radius-cards: 16px;
  --radius-small: 6px;
  --radius-buttons: 6px;
}

/* Base resets & typography */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-matter);
  font-weight: 400;
  background-color: var(--color-abyss-canvas);
  color: var(--geobim-sage);
  line-height: 1.4;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: #0B191B;
  color: #A4B9BA;
  overflow-x: hidden;
  position: relative;
  width: 100%;
}

/* Target sections smooth scroll clearance under fixed header (80px) */
section {
  scroll-margin-top: 5rem;
}

/* Custom Scrollbar - Abyssal GeoBIM */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: #071213;
}
::-webkit-scrollbar-thumb {
  background: #2E5D61;
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: #5E8588;
}

/* Hide scrollbar utility for mobile swiper tabs */
.no-scrollbar::-webkit-scrollbar {
  display: none;
}
.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* Headings: Strict 500 weight only, tight negative tracking, line-height 1.0 - 1.05 */
h1, h2, h3, h4, h5, h6, .heading-matter {
  font-family: var(--font-matter);
  font-weight: 500 !important;
  color: #FFFFFF;
  line-height: 1.05;
}

.heading-display {
  font-size: clamp(2.2rem, 5.5vw, 5.25rem);
  letter-spacing: -0.04em;
  line-height: 1.02;
  word-break: break-word;
}

.heading-section {
  font-size: clamp(1.65rem, 3.8vw, 2.75rem);
  letter-spacing: -0.035em;
  line-height: 1.08;
  word-break: break-word;
}

.heading-card {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  letter-spacing: -0.02em;
  line-height: 1.15;
}

/* Section label / Eyebrow: uppercase, tracking 0.08em - 0.15em, weight 500 */
.eyebrow-label {
  font-family: var(--font-matter);
  font-size: clamp(10px, 1.2vw, 12px);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: #E5B800;
  display: inline-flex;
  align-items: center;
}

.eyebrow-label-sm {
  font-family: var(--font-matter);
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: #A4B9BA;
}

/* Kinetic Background Text */
.kinetic-text {
  font-family: var(--font-matter);
  font-weight: 500;
  line-height: 0.9;
  letter-spacing: -0.046em;
  color: rgba(217, 226, 227, 0.035);
  user-select: none;
  pointer-events: none;
  white-space: nowrap;
}

/* Statistics in Official GeoBIM Gold */
.stat-number {
  font-family: var(--font-matter);
  font-weight: 500;
  color: #E5B800;
  line-height: 1.0;
  letter-spacing: -0.04em;
}

/* Signature Gradient Pill Button */
.btn-signature {
  background: var(--gradient-geobim-signature);
  color: #071213 !important;
  font-family: var(--font-arial);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: 6px;
  padding: 12px 22px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: transform 0.2s ease, filter 0.2s ease, box-shadow 0.2s ease;
  border: none;
  cursor: pointer;
  box-shadow: none !important;
  text-decoration: none;
  touch-action: manipulation;
}

.btn-signature:hover {
  transform: translateY(-1px);
  filter: brightness(1.06);
}

.btn-signature:active {
  transform: translateY(0);
}

/* Filled Action Button in GeoBIM Teal */
.btn-teal-action {
  background-color: #142E31;
  color: #FFFFFF;
  font-family: var(--font-matter);
  font-size: 13px;
  font-weight: 500;
  border-radius: 6px;
  padding: 11px 20px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  border: 1px solid rgba(94, 133, 136, 0.35);
  touch-action: manipulation;
  cursor: pointer;
}

.btn-teal-action:hover {
  background-color: #1B3C40;
  color: #E5B800;
  border-color: #E5B800;
}

/* Ghost Navigation Link with Animated Indicator */
.nav-ghost-link {
  font-family: var(--font-matter);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #A4B9BA;
  background: transparent;
  border: none;
  transition: color 0.2s ease;
  padding: 8px 0;
  position: relative;
  text-decoration: none;
}

.nav-ghost-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--geobim-gold);
  transition: width 0.25s ease;
  border-radius: 1px;
}

.nav-ghost-link:hover,
.nav-ghost-link.active {
  color: #FFFFFF;
}

.nav-ghost-link.active::after,
.nav-ghost-link:hover::after {
  width: 100%;
}

/* Mobile Nav Links */
.mobile-nav-link {
  font-family: var(--font-matter);
  font-size: 15px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #D9E2E3;
  padding: 12px 14px;
  border-radius: 6px;
  display: block;
  transition: background-color 0.2s ease, color 0.2s ease;
  text-decoration: none;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background-color: #142E31;
  color: #E5B800;
}

/* Arrow Icon Button */
.btn-arrow-icon {
  width: 40px;
  height: 40px;
  border-radius: 6px;
  background: rgba(46, 93, 97, 0.55);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  border: 1px solid rgba(229, 184, 0, 0.15);
  flex-shrink: 0;
  transition: background 0.2s ease, transform 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
}

.btn-arrow-icon:hover {
  background: #E5B800;
  color: #071213;
  border-color: #E5B800;
  transform: translate(2px, -2px);
}

/* Surface Cards: Raised level (#142E31), 16px radius, NO drop shadows */
.card-surface {
  background-color: #142E31;
  border-radius: 16px;
  padding: 32px;
  box-shadow: none !important;
  border: 1px solid rgba(164, 185, 186, 0.12) !important;
  transition: background-color 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
}

@media (max-width: 640px) {
  .card-surface {
    padding: 24px 20px;
  }
}

.card-surface:hover {
  background-color: #18373B;
  border-color: rgba(229, 184, 0, 0.3) !important;
}

/* Recessed Deep Surface: Deep level (#071213), 16px radius */
.card-recessed {
  background-color: #071213;
  border-radius: 16px;
  box-shadow: none !important;
  border: 1px solid rgba(164, 185, 186, 0.1) !important;
}

/* Feature Row Card: 16px radius, Auros feature listing */
.card-feature-row {
  background-color: rgba(20, 46, 49, 0.6);
  border-radius: 16px;
  padding: 28px 28px;
  border: 1px solid rgba(164, 185, 186, 0.12);
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

@media (max-width: 640px) {
  .card-feature-row {
    padding: 20px 18px;
  }
}

.card-feature-row:hover {
  background-color: #142E31;
  border-color: rgba(229, 184, 0, 0.35);
  transform: translateY(-1px);
}

/* Modal Window */
.modal-overlay {
  background-color: rgba(7, 18, 19, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal-box {
  background-color: #142E31;
  border-radius: 16px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.85);
  border: 1px solid rgba(164, 185, 186, 0.25);
  -webkit-overflow-scrolling: touch;
}

/* Inputs in Auros style with GeoBIM palette */
.input-auros {
  background-color: #071213;
  color: #FFFFFF;
  border: 1px solid rgba(164, 185, 186, 0.25);
  border-radius: 6px;
  padding: 12px 16px;
  font-family: var(--font-matter);
  font-size: 16px; /* Prevents auto-zoom in iOS Safari */
  line-height: 1.4;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  width: 100%;
}

@media (min-width: 640px) {
  .input-auros {
    font-size: 14px;
  }
}

.input-auros:focus {
  outline: none;
  border-color: #E5B800;
  box-shadow: 0 0 0 1px rgba(229, 184, 0, 0.35);
}

.input-auros::placeholder {
  color: #5E8588;
}

/* 3D Particle Canvas */
#hero-particle-canvas {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 1;
}

/* Watermark GeoBIM */
.watermark-geobim {
  position: absolute;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  will-change: transform;
}

.watermark-geobim img {
  opacity: 0.045;
  filter: contrast(1.15) brightness(1.1);
  max-width: none;
}

/* Floating Back to Top */
#back-to-top {
  transition: opacity 0.3s ease, transform 0.3s ease, background-color 0.2s ease;
}

#back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

#back-to-top.hidden-btn {
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
}

/* Multi-Select Dropdown */
#service-dropdown {
  scrollbar-width: thin;
  scrollbar-color: #2E5D61 #071213;
}

#service-dropdown::-webkit-scrollbar {
  width: 5px;
}

#service-dropdown::-webkit-scrollbar-track {
  background: #071213;
}

#service-dropdown::-webkit-scrollbar-thumb {
  background: #2E5D61;
  border-radius: 3px;
}

#service-dropdown::-webkit-scrollbar-thumb:hover {
  background: #5E8588;
}

.service-option:hover {
  background-color: rgba(46, 93, 97, 0.4);
}