/*
  Bitrock Team — Dark Matte Theme (inspired by Athos Dark)
  - Minimal, high-contrast, elegant
  - Uses Inter and IBM Plex Mono for typography
*/

/* Self-hosted fonts: Exo 2 for UI, IBM Plex Mono for code/accents */
@font-face {
  font-family: 'Exo 2';
  src: url('../fonts/exo2/Exo2[wght].ttf') format('truetype');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
/* Keep IBM Plex Mono via local asset if added later; fallback to system monospace for now */

:root {
  --bg-900: #0a0c10;     /* base background */
  --bg-800: #0e1116;     /* elevated background */
  --bg-700: #12161d;     /* cards */
  --border: #1f2630;     /* subtle borders */
  --text: #e6eef7;       /* primary text */
  --text-dim: #9fb0c3;   /* secondary text */
  --accent: #6aa4ff;     /* blue accent */
  --accent-2: #9a7bff;   /* purple accent */
  --success: #36d399;
  --warning: #f4bf4f;
  --accent-light: #8fb8ff; /* lighter blue for hovers */
}

/* Base */
html, body { height: 100%; }
body.bg-dark {
  background:
    /* corner glow top-right */
    radial-gradient(120vw 80vh at 110% -10%, rgba(106,164,255,0.32) 0, transparent 60%),
    /* corner glow top-left */
    radial-gradient(100vw 60vh at -10% 10%, rgba(120,170,255,0.28) 0, transparent 60%),
    /* middle ambient glow */
    radial-gradient(140vw 100vh at 50% 50%, rgba(106,164,255,0.18) 0, transparent 70%),
    /* bottom subtle glow */
    radial-gradient(100vw 60vh at 50% 100%, rgba(106,164,255,0.22) 0, transparent 65%),
    /* faint angled sheen */
    conic-gradient(from 200deg at 50% 10%, rgba(255,255,255,0.06), rgba(255,255,255,0) 40%),
    /* soft blue wash that extends with page */
    linear-gradient(180deg, rgba(106,164,255,0.08) 0%, rgba(106,164,255,0.04) 50%, rgba(0,0,0,0) 100%),
    /* base matte gradient that extends infinitely */
    linear-gradient(180deg, #0d1826 0%, #15243a 40%, #1a2b42 100%);
  background-attachment: fixed;
  color: var(--text) !important;
  font-family: 'Exo 2', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
}

/* subtle noise + vignette overlays */
body.bg-dark::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(135,170,255,0.09) 0.5px, transparent 0.5px);
  background-size: 2px 2px;
  opacity: 0.05; /* soft blue noise */
  mix-blend-mode: soft-light;
  z-index: 0;
}
body.bg-dark::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(120% 100% at 50% 20%, rgba(0,0,0,0) 55%, rgba(0,0,0,0.15) 100%);
  z-index: 0;
}

.text-secondary { color: var(--text-dim) !important; }

/* Links */
.link-light { color: var(--text) !important; }
.link-light.link-opacity-75-hover:hover { opacity: 0.75; }
.link-secondary { color: var(--text-dim) !important; }
.link-secondary.link-opacity-75-hover:hover { color: #c7d6e6 !important; }

/* Layout helpers */
.bg-black-900 { background-color: var(--bg-900) !important; }
.bg-black-800 { background-color: var(--bg-800) !important; }
.border-secondary-subtle { border-color: var(--border) !important; }
.letter-spacing-1 { letter-spacing: 0.06em; }

/* Header */
header .navbar-brand { color: var(--text) !important; text-decoration: none; font-weight: 800; }
/* Logo in brand */
header .navbar-brand { display: inline-flex; align-items: center; gap: 8px; }
header .navbar-brand img { height: 64px; width: auto; display: inline-block; }
header > .container { min-height: 80px; }
header nav { align-items: center; }
header .nav-link {
  color: var(--text) !important;
  opacity: 0.85;
  position: relative;
  transition: color 160ms ease, opacity 160ms ease;
}
header .nav-link:hover { opacity: 1; color: var(--accent-light) !important; }
header .nav-link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -8px;
  height: 2px;
  background: linear-gradient(90deg, rgba(106,164,255,0) 0%, var(--accent-light) 50%, rgba(106,164,255,0) 100%);
  transform: scaleX(0);
  transform-origin: 50% 100%;
  transition: transform 200ms ease;
}
header .nav-link:hover::after { transform: scaleX(1); }
/* Active nav state */
header .nav-link.active,
header .nav-link[aria-current="page"] {
  color: var(--accent-light) !important;
}
header .nav-link.active::after,
header .nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

/* Hero */
.hero {
  min-height: 72vh;
  background:
    radial-gradient(1200px 420px at 90% -40%, rgba(106,164,255,0.14), transparent 60%),
    radial-gradient(900px 360px at 0% 0%, rgba(154,123,255,0.12), transparent 60%),
    linear-gradient(180deg, rgba(255,255,255,0.02), rgba(0,0,0,0));
  position: relative;
  overflow: hidden;
}
.hero > .container { position: relative; z-index: 1; }
/* scrim to improve text contrast on images */
.hero .hero-scrim {
  position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(180deg, rgba(10,12,16,0.48) 0%, rgba(10,12,16,0.24) 35%, rgba(10,12,16,0.56) 100%);
  pointer-events: none;
}

/* Improve text legibility on rich imagery */
.hero h1, .hero p, .hero .badge { text-shadow: 0 2px 8px rgba(0,0,0,0.55); }
.hero-plate {
  background: linear-gradient(180deg, rgba(10,12,16,0.45), rgba(10,12,16,0.35));
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,0.06);
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
  border-radius: 1rem;
}
@media (max-width: 767.98px) {
  .hero-plate { background: rgba(10,12,16,0.5); }
}
.hero .badge { letter-spacing: 0.1em; font-weight: 600; }

/* Cards */
.card.card-service {
  background-color: var(--bg-700);
  border: 1px solid var(--border);
}
.card.card-service .card-body { padding: 1.5rem; }

/* Accent badge */
.bg-accent { background-color: var(--accent) !important; color: #0a0c10 !important; }

/* Glossy buttons (subtle, dark theme) */
.btn-accent {
  color: #0a0c10 !important;
  background-color: var(--accent) !important;
  border: 1px solid rgba(106,164,255,0.6) !important;
  box-shadow: 0 8px 20px rgba(75, 133, 230, 0.18);
  transition: transform 140ms ease, box-shadow 140ms ease, background-color 140ms ease;
}
.btn-accent:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(75, 133, 230, 0.28);
  background-color: #5a99f0 !important;
}
.btn-accent:active {
  transform: translateY(0);
  box-shadow: 0 6px 16px rgba(75, 133, 230, 0.22);
  background-color: #4b85e6 !important;
}
.btn-accent:focus-visible {
  outline: 2px solid rgba(110, 170, 255, 0.5);
  outline-offset: 2px;
}

.btn-outline-light {
  color: var(--text) !important;
  border-color: rgba(255,255,255,0.28) !important;
  background-color: rgba(255,255,255,0.06) !important;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.24);
  transition: transform 140ms ease, box-shadow 140ms ease, background-color 140ms ease, border-color 140ms ease;
}
.btn-outline-light:hover {
  transform: translateY(-1px);
  background-color: rgba(255,255,255,0.1) !important;
  border-color: rgba(255,255,255,0.4) !important;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.32);
}

/* CTA */
.cta { background: linear-gradient(90deg, rgba(106,164,255,0.12), rgba(154,123,255,0)); }

/* Components */
.hero-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0));
  border: 1px solid var(--border);
}

.badge.text-bg-dark {
  background-color: var(--bg-800) !important;
  color: var(--text) !important;
  border: 1px solid var(--border);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  letter-spacing: 0.04em;
}

/* Responsive */
@media (max-width: 767.98px) {
  .hero { text-align: center; }
}
@media (max-width: 767.98px) {
  header .navbar-brand img { height: 36px; }
  header > .container { min-height: 56px; }
}

/* ==============================
   Extended layout & components
   ============================== */

.section-sticky {
  position: sticky;
  top: 72px; /* below header */
}

.chip {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-800);
  color: var(--text-dim);
  font-size: 0.8rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  letter-spacing: 0.04em;
}

.project-card {
  background: var(--bg-700);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  overflow: hidden;
  position: relative;
  transition: transform 160ms ease, box-shadow 160ms ease;
}
.project-card:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(0,0,0,0.35); }

.project-media {
  height: 180px;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(100% 60% at 80% -10%, rgba(106,164,255,0.18), transparent 60%),
    radial-gradient(80% 60% at -10% 0%, rgba(154,123,255,0.14), transparent 60%),
    linear-gradient(180deg, rgba(255,255,255,0.02), rgba(0,0,0,0));
}
.project-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.project-media img.fit-contain { object-fit: contain; background-color: var(--bg-800); padding: 12px; }

.project-card .card-body { padding: 1.25rem; }
.project-card .card-title { margin-bottom: 0.25rem; }
.project-card .card-text { color: var(--text-dim); }

.service-media { height: 140px; border-bottom: 1px solid var(--border); background: var(--bg-700); }
.service-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
/* allow SVG service icons to fit without cropping */
.service-media img.fit-contain { object-fit: contain; background-color: var(--bg-800); padding: 12px; }

/* Scroll reveal animations */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 560ms ease, transform 560ms ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ==============================
   Slider (homepage)
   ============================== */
.slider {
  position: relative;
  background: var(--bg-700);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  overflow: hidden;
}
.slider-viewport {
  overflow: hidden;
}
.slider-track {
  display: flex;
  transition: transform 480ms ease;
  will-change: transform;
}
.slider-slide { min-width: 100%; height: 58vh; max-height: 640px; }
.slider-slide img {
  width: 100%; height: 100%; object-fit: cover; display: block;
}
.slider-slide img.fit-contain { object-fit: contain; background-color: var(--bg-800); }
/* Slide captions that travel with each slide */
.slider-slide { position: relative; }
.slide-caption { position: absolute; inset: 0; display: flex; align-items: center; justify-content: flex-start; padding: 0 24px; }
.slide-caption .caption-inner { width: 50%; max-width: none; }
.slide-caption .hero-plate { width: 100%; margin: 0; }
.slide-caption .hero-plate .btn { margin-right: 0.5rem; }
@media (max-width: 767.98px) {
  .slide-caption { align-items: flex-end; padding: 0 12px 12px; }
  .slide-caption .caption-inner { width: 100%; }
}
.slider-nav {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: space-between; pointer-events: none;
}
.slider-btn {
  pointer-events: auto;
  width: 40px; height: 40px; border-radius: 999px; border: 1px solid var(--border);
  background: rgba(14,17,22,0.6);
  color: var(--text);
  display: grid; place-items: center;
  margin: 0 0.5rem;
  transition: background-color 160ms ease, transform 120ms ease;
}
.slider-btn:hover { background: rgba(14,17,22,0.8); transform: translateY(-1px); }
.slider-dots { position: absolute; left: 0; right: 0; bottom: 10px; display: flex; justify-content: center; gap: 8px; }
.slider-dot { width: 8px; height: 8px; border-radius: 999px; background: rgba(255,255,255,0.28); border: 1px solid var(--border); }
.slider-dot.is-active { background: var(--accent); }

/* ==============================
   Lightbox
   ============================== */
.lightbox { position: fixed; inset: 0; background: rgba(10,12,16,0.9); display: none; align-items: center; justify-content: center; z-index: 9999; }
.lightbox.is-open { display: flex; }
.lightbox img { max-width: 90vw; max-height: 85vh; border: 1px solid var(--border); box-shadow: 0 20px 48px rgba(0,0,0,0.6); border-radius: 8px; }
.lightbox-controls { position: absolute; inset: 0; display: flex; align-items: center; justify-content: space-between; pointer-events: none; }
.lightbox-btn { pointer-events: auto; width: 44px; height: 44px; border-radius: 999px; border: 1px solid var(--border); background: rgba(14,17,22,0.6); color: var(--text); display: grid; place-items: center; margin: 0 0.75rem; }
.lightbox-btn:hover { background: rgba(14,17,22,0.85); }
.lightbox-close { position: absolute; top: 16px; right: 16px; }
@media (max-width: 767.98px) { .slider-slide { height: 38vh; max-height: 380px; } }

/* Hero-integrated slider variant */
.hero .slider { position: absolute; inset: 0; border: none; background: transparent; z-index: 1; }
.hero .slider-viewport, .hero .slider-track, .hero .slider-slide { height: 100%; max-height: none; }
.hero .slider-nav { inset: auto 0 16px 0; padding: 0 12px; }
.hero .slider-dots { bottom: 16px; }
.hero .slider-btn { background: rgba(14,17,22,0.5); }

/* ==============================
   News carousel tweaks
   ============================== */
.news-carousel .carousel-item img {
  width: 100%;
  height: 440px; /* keep consistent height */
  object-fit: cover;
  object-position: center; /* keep subject centered */
}

/* Social icon normalization */
.icon-social { width: 18px; height: 18px; display: inline-block; vertical-align: middle; }
.icon-social svg { width: 100%; height: 100%; display: block; }

/* ==============================
   Google Form embed (dark blend)
   ============================== */
.form-embed {
  background: var(--bg-800);
  border: 1px solid var(--border);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 10px 24px rgba(0,0,0,0.35);
  position: relative;
}
.form-embed iframe {
  display: block;
  width: 100%;
  border: 0;
  /* approximate dark mode for the embed */
  filter: invert(0.92) hue-rotate(180deg) saturate(0.95) contrast(0.95);
  height: 100vh; /* responsive default */
}
@media (min-width: 576px) {
  .form-embed iframe { height: 90vh; }
}
@media (min-width: 992px) {
  .form-embed iframe { height: 1100px; }
}
.form-embed .overlay-hue {
  position: absolute;
  inset: 0;
  background: var(--accent);
  mix-blend-mode: color;
  opacity: 0.35;
  pointer-events: none;
}

/* Contact Form Styles */
.form-control:focus,
.form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.form-control.is-valid,
.form-select.is-valid {
  border-color: #28a745;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3e%3cpath fill='%2328a745' d='M13.854 3.646a.5.5 0 0 1 0 .708l-7 7a.5.5 0 0 1-.708 0l-3.5-3.5a.5.5 0 1 1 .708-.708L6.5 10.293l6.646-6.647a.5.5 0 0 1 .708 0z'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 1rem 1rem;
}

.form-control.is-invalid,
.form-select.is-invalid {
  border-color: #dc3545;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3e%3cpath fill='%23dc3545' d='M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zM5.354 4.646a.5.5 0 1 0-.708.708L7.293 8l-2.647 2.646a.5.5 0 0 0 .708.708L8 8.707l2.646 2.647a.5.5 0 0 0 .708-.708L8.707 8l2.647-2.646a.5.5 0 0 0-.708-.708L8 7.293 5.354 4.646z'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 1rem 1rem;
}

.form-check-input:checked {
  background-color: var(--accent);
  border-color: var(--accent);
}

.form-check-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.invalid-feedback {
  display: block;
  color: #dc3545;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.alert {
  border: none;
  border-radius: 0.5rem;
}

.alert-success {
  background-color: rgba(40, 167, 69, 0.1);
  color: #28a745;
  border-left: 4px solid #28a745;
}

.alert-danger {
  background-color: rgba(220, 53, 69, 0.1);
  color: #dc3545;
  border-left: 4px solid #dc3545;
}

.btn-loading .spinner-border {
  width: 1rem;
  height: 1rem;
}