/**
 * =========================================================
 * STYLE.CSS — Refined & Consolidated
 * =========================================================
 *
 * SUMMARY:
 * 0) Root Tokens & Global Styles
 * 1) Layout
 * 2) Header / Navbar
 * 3) Offcanvas Menu
 * 4) Page Title Section
 * 5) Components (Cards, Badges, etc.)
 * 6) Buttons
 * 7) Footer
 * 8) Utilities
 * 9) Animations & Keyframes
 * 10) Accessibility
 * 11) Media Queries
 * =========================================================
 */


/* =========================================================
   0) ROOT TOKENS & GLOBAL STYLES
========================================================= */

:root {
  /* Layout */
  --offcanvas-width: 280px;

  /* Spacing */
  --section-py: 100px;

  /* Radii */
  --radius: 1rem;
  --radius-lg: 1.25rem;
  --radius-xl: 1.5rem;
  --radius-pill: 999px;
  --radius-sm: 10px; /* Formerly --abt-radius-sm */

  /* Shadows */
  --shadow: 0 .5rem 1.25rem rgba(0, 0, 0, .08);
  --shadow-lg: 0 .75rem 2rem rgba(0, 0, 0, .12);
  --shadow-sm: 0 .25rem .8rem rgba(0, 0, 0, .06); /* Formerly --abt-shadow-sm */
  --shadow-md: 0 .6rem 1.4rem rgba(0, 0, 0, .08); /* Formerly --abt-shadow-md */

  /* Motion */
  --easing: cubic-bezier(.25, .8, .25, 1);
  --speed: .6s;
  --speed-fast: .35s;

  /* Colors & Gradients */
  --link-color: var(--bs-body-color);
  --link-color-hover: var(--bs-primary);
  --accent-gradient: linear-gradient(90deg, var(--bs-primary), var(--bs-info));
  --cta-gradient: linear-gradient(135deg, var(--bs-primary), var(--bs-info), var(--bs-purple));
  --cta-gradient-dark: linear-gradient(135deg,
    color-mix(in oklab, var(--bs-primary) 55%, black),
    color-mix(in oklab, var(--bs-info) 50%, black),
    color-mix(in oklab, var(--bs-purple) 45%, black));

  /* Surfaces */
  --surface-blur: saturate(140%) blur(6px);
  --surface-bg: rgba(var(--bs-body-bg-rgb), .75);
  --surface-border: var(--bs-border-color);
  --card-bg: rgba(var(--bs-body-bg-rgb), .9);

  /* Typography */
  --font-heading: "Plus Jakarta Sans", sans-serif;
  --text-muted: var(--bs-secondary-color);
}

html[data-bs-theme="dark"] {
  --shadow: 0 .5rem 1.25rem rgba(0, 0, 0, .35);
  --shadow-lg: 0 .75rem 2rem rgba(0, 0, 0, .45);
  --shadow-sm: 0 .25rem .8rem rgba(0, 0, 0, .20);
  --shadow-md: 0 .6rem 1.4rem rgba(0, 0, 0, .26);
  --card-bg: rgba(var(--bs-body-bg-rgb), .82);
}

body {
  overflow-x: hidden; /* Prevent unwanted horizontal scroll */
  font-family: "Roboto", sans-serif;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

.font-jakarta {
  font-family: "Plus Jakarta Sans", sans-serif;
}

/* Invert brand logo in dark mode */
html[data-bs-theme="dark"] .navbar-brand img {
  filter: invert(1) brightness(0.8);
}


/* =========================================================
   1) LAYOUT
========================================================= */

.page-container {
  position: relative;
  transition: transform 0.3s ease-in-out;
}

.page-container.offcanvas-open {
  transform: translateX(calc(-1 * var(--offcanvas-width)));
}


/* =========================================================
   2) HEADER / NAVBAR
========================================================= */

.navbar {
  position: sticky;
  top: 0;
  z-index: 1030;
  background-color: rgba(var(--bs-body-bg-rgb), 0.65);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--bs-border-color);
  transition: background-color .25s ease, border-color .25s ease;
}

.navbar .container,
.navbar .container-fluid {
  min-height: 64px;
}

.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-weight: 600;
  letter-spacing: .2px;
}

.navbar-brand img {
  height: 28px;
  width: auto;
}

.navbar-nav .nav-link {
  padding: .5rem .75rem;
  border-radius: .5rem;
  color: var(--bs-emphasis-color);
  transition: color .2s, background-color .2s, box-shadow .2s;
}

.navbar-nav .nav-link:hover {
  background-color: rgba(var(--bs-secondary-bg-rgb), .6);
}

.navbar-nav .nav-link.active,
.navbar-nav .nav-link[aria-current="page"] {
  position: relative;
  color: var(--bs-primary);
  background-color: rgba(var(--bs-primary-rgb), .08);
}

/* Active state underline accent */
.navbar-nav .nav-link.active::after,
.navbar-nav .nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: .5rem;
  right: .5rem;
  bottom: .3rem;
  height: 2px;
  border-radius: 1px;
  background: var(--accent-gradient);
  opacity: .9;
}

.dropdown-menu {
  padding: .35rem;
  border: 1px solid var(--surface-border);
  border-radius: .75rem;
  background-color: rgba(var(--bs-body-bg-rgb), .98);
  box-shadow: 0 .5rem 1rem rgba(0, 0, 0, .08);
}

.dropdown-item {
  margin: .125rem .25rem;
  border-radius: .5rem;
}

.dropdown-item:hover,
.dropdown-item:focus {
  background-color: rgba(var(--bs-secondary-bg-rgb), .8);
}

.dropdown-item.active,
.dropdown-item:active {
  color: var(--bs-primary-text-emphasis);
  background-color: rgba(var(--bs-primary-rgb), .12);
}

.navbar-toggler {
  padding: .4rem .6rem;
  border: 1px solid var(--surface-border);
  border-radius: .6rem;
}


/* =========================================================
   3) OFFCANVAS MENU
========================================================= */

.offx {
  background-color: rgba(var(--bs-body-bg-rgb), .98);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-left: 1px solid var(--surface-border);
}

.offx.offcanvas-end {
  width: var(--offcanvas-width);
}

.offx .offcanvas-header {
  padding: 1rem;
}

.offx .offcanvas-body {
  padding: 1rem;
}

.offx-nav {
  display: grid;
  gap: .35rem;
  padding: .25rem;
}

/* Default offcanvas links */
.offcanvas nav a {
  padding: .9rem 1rem;
  border-radius: .9rem;
  text-decoration: none;
  color: var(--bs-emphasis-color);
  transition: background-color .25s var(--easing), box-shadow .25s var(--easing), color .2s;
}

.offcanvas nav a:hover {
  background-color: rgba(var(--bs-secondary-bg-rgb), .85);
}

.offcanvas nav a.active {
  color: var(--bs-primary);
  background-color: rgba(var(--bs-primary-rgb), .10);
  box-shadow: 0 .6rem 1.2rem rgba(var(--bs-primary-rgb), .12);
}

/* Theme switcher */
#themeSwitch.form-check-input {
  width: 2.8rem;
  height: 1.4rem;
  cursor: pointer;
}

/* Subtle divider */
.offx hr {
  border-color: rgba(var(--bs-border-color-rgb), .6);
  opacity: 1;
}

/* Staggered entrance animation for nav items */
.offx-stagger > li {
  opacity: 0;
  transform: translateY(6px);
}

.offx-stagger > li:nth-child(1) { animation: offxReveal .35s ease .05s forwards; }
.offx-stagger > li:nth-child(2) { animation: offxReveal .35s ease .12s forwards; }
.offx-stagger > li:nth-child(3) { animation: offxReveal .35s ease .19s forwards; }
.offx-stagger > li:nth-child(4) { animation: offxReveal .35s ease .26s forwards; }

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


/* =========================================================
   4) PAGE TITLE SECTION
========================================================= */

.page-title-section {
  position: relative;
  padding: 56px 0 48px;
  border-bottom: 1px solid var(--bs-border-color);
  background: linear-gradient(135deg,
      color-mix(in oklab, var(--bs-primary) 6%, transparent),
      color-mix(in oklab, var(--bs-info) 5%, transparent));
}

.page-title {
  color: var(--bs-emphasis-color);
  letter-spacing: .2px;
  text-wrap: balance;
  animation: fadeDown .8s ease both;
}

.page-subtitle {
  max-width: 70ch;
  margin-left: auto;
  margin-right: auto;
  font-size: 1.15rem;
  opacity: .9;
  animation: fadeUp .8s ease .2s both;
}

html[data-bs-theme="dark"] .page-title-section {
  background: linear-gradient(135deg,
      rgba(var(--bs-primary-rgb), .10),
      rgba(var(--bs-info-rgb), .08));
}


/* =========================================================
   5) COMPONENTS
========================================================= */

/* Custom Card Style */
.card-custom {
  background: var(--card-bg);
  border: 1px solid color-mix(in oklab, var(--surface-border) 80%, transparent);
  border-radius: var(--radius);
  box-shadow: 0 .4rem 1rem rgba(0, 0, 0, .06);
  transition: transform var(--speed-fast) var(--easing), box-shadow var(--speed-fast) var(--easing);
}

.card-custom:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Override for default Bootstrap cards to remove box-shadow if needed */
.card {
  box-shadow: none !important;
}


/* =========================================================
   6) BUTTONS
========================================================= */

.btn {
  border-radius: .8rem;
  transition: transform var(--speed-fast), box-shadow var(--speed-fast), border-color var(--speed-fast), background-color var(--speed-fast);
}

.btn-primary {
  box-shadow: 0 .5rem 1.2rem rgba(var(--bs-primary-rgb), .18);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 .75rem 1.6rem rgba(var(--bs-primary-rgb), .26);
}


/* =========================================================
   7) FOOTER
========================================================= */

.site-footer {
  position: relative;
  border-top: 1px solid var(--surface-border);
  background: var(--bs-body-bg);
}

/* Thin gradient stripe on top */
.site-footer::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 3px;
  background: var(--accent-gradient);
  opacity: .75;
}

.footer-brand {
  color: var(--bs-emphasis-color);
  text-decoration: none;
}

.footer-brand:hover {
  color: var(--bs-primary);
}

.footer-brand img {
  width: 28px;
  height: 28px;
  filter: drop-shadow(0 1px 0 rgba(0, 0, 0, .05));
}

.footer-title {
  margin-bottom: .75rem;
  font-weight: 700;
  letter-spacing: .2px;
  color: var(--bs-emphasis-color);
}

.footer-link {
  position: relative;
  display: inline-block;
  padding-block: .25rem;
  color: var(--bs-body-color);
  text-decoration: none;
  transition: color .2s ease;
}

/* Animated underline on hover */
.footer-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: .15rem;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--accent-gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s ease;
  opacity: .9;
}

.footer-link:hover,
.footer-link:focus-visible {
  color: var(--bs-primary);
}

.footer-link:hover::after,
.footer-link:focus-visible::after {
  transform: scaleX(1);
}

/* Social media icon buttons */
.social-btn {
  --btn-bg: rgba(var(--bs-secondary-bg-rgb), .9);
  --btn-bd: var(--surface-border);
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: .9rem;
  border: 1px solid var(--btn-bd);
  background: var(--btn-bg);
  color: var(--bs-emphasis-color);
  transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease, border-color .2s ease;
}

.social-btn i {
  font-size: 1.1rem;
  line-height: 1;
}

.social-btn:hover {
  transform: translateY(-2px);
  color: var(--bs-primary);
  background: rgba(var(--bs-primary-rgb), .12);
  border-color: rgba(var(--bs-primary-rgb), .35);
  box-shadow: 0 .6rem 1.2rem rgba(var(--bs-primary-rgb), .18);
}

.footer-bottom {
  border-top: 1px solid var(--surface-border);
  background: rgba(var(--bs-body-bg-rgb), .98);
}

.to-top {
  --bs-btn-border-radius: .75rem;
  --bs-btn-padding-y: .3rem;
  --bs-btn-padding-x: .6rem;
  display: inline-flex;
  align-items: center;
  gap: .25rem;
  font-weight: 600;
}

/* Dark mode adjustments for footer */
html[data-bs-theme="dark"] .footer-bottom {
  background: rgba(var(--bs-body-bg-rgb), .90);
}

html[data-bs-theme="dark"] .social-btn {
  --btn-bg: rgba(var(--bs-secondary-bg-rgb), .7);
}


/* =========================================================
   8) UTILITIES
========================================================= */

.text-soft {
  color: rgba(var(--bs-emphasis-color-rgb), .75) !important;
}

.small-muted {
  color: var(--text-muted);
}

.bg-elev-1 {
  background-color: rgba(var(--bs-body-bg-rgb), .65) !important;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.border-soft {
  border-color: rgba(var(--bs-border-color-rgb), .7) !important;
}

.rounded-2xl {
  border-radius: var(--radius-lg) !important;
}

.shadow-idx {
  box-shadow: var(--shadow) !important;
}

.shadow-idx-lg {
  box-shadow: var(--shadow-lg) !important;
}

.prose {
  max-width: 68ch;
}

.max-w-600 { max-width: 600px !important; }
.max-w-700 { max-width: 700px !important; }
.max-w-800 { max-width: 800px !important; }

.vstack > * + * { margin-top: .75rem; }
.hstack > * + * { margin-left: .75rem; }


/* =========================================================
   9) ANIMATIONS & KEYFRAMES
========================================================= */

/* Reveal animations */
@media (prefers-reduced-motion: no-preference) {
  .reveal-up {
    opacity: 0;
    transform: translateY(10px);
    animation: reveal-up .5s var(--easing) forwards;
  }

  [data-delay="1"] { animation-delay: .08s; }
  [data-delay="2"] { animation-delay: .16s; }
  [data-delay="3"] { animation-delay: .24s; }
  [data-delay="4"] { animation-delay: .32s; }
  [data-delay="5"] { animation-delay: .40s; }
}

@keyframes reveal-up {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Page title animations */
@keyframes fadeDown {
  from {
    opacity: 0;
    transform: translateY(-12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Gradient and floating animations */
@keyframes heroGradient {
  0%   { background-position: 0% 40%; }
  50%  { background-position: 100% 60%; }
  100% { background-position: 0% 40%; }
}

@keyframes ctaGradient {
  0%   { background-position: 0% 40%; }
  50%  { background-position: 100% 60%; }
  100% { background-position: 0% 40%; }
}

@keyframes idx-float {
  0%   { transform: translate3d(0, 0, 0) rotate(0deg); }
  100% { transform: translate3d(-2%, -1%, 0) rotate(2deg); }
}


/* =========================================================
   10) ACCESSIBILITY
========================================================= */

:where(a, button, .btn, .nav-link, .dropdown-item, .footer-link, .social-btn, .to-top):focus-visible {
  outline: 0;
  box-shadow: 0 0 0 .2rem rgba(var(--bs-primary-rgb), .35) !important;
  transition: box-shadow var(--speed-fast);
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 .2rem rgba(var(--bs-primary-rgb), .25);
}

#themeSwitch.form-check-input:focus {
  box-shadow: 0 0 0 .2rem rgba(var(--bs-primary-rgb), .25);
}


/* =========================================================
   11) MEDIA QUERIES
========================================================= */

.section-spacing {
  padding: 64px 0;
}

@media (min-width: 992px) {
  .section-spacing {
    padding: 80px 0;
  }
}

@media (max-width: 575.98px) {
  .page-title-section {
    padding: 40px 0 32px;
  }
}