/* ==========================================================================
   HOB Technology - Core Design System & Interactive Pure-CSS Engine
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties & Dynamic Theming (Light Theme Default)
   -------------------------------------------------------------------------- */
:root {
  --bg-body: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f1f5f9;
  --border-color: #e2e8f0;
  --border-highlight: #cbd5e1;
  --text-heading: #0f172a;
  --text-body: #334155;
  --text-muted: #64748b;
  --brand-primary: #282871;
  --brand-accent: #e4782c;
  --brand-primary-soft: rgba(40, 40, 113, 0.08);
  --nav-glass: rgba(255, 255, 255, 0.88);
  --card-shadow: 0 10px 30px -5px rgba(15, 23, 42, 0.06), 0 4px 6px -2px rgba(15, 23, 42, 0.02);
  --card-hover-shadow: 0 20px 40px -10px rgba(40, 40, 113, 0.12), 0 1px 3px rgba(228, 120, 44, 0.1);
}

/* --------------------------------------------------------------------------
   2. Pure CSS Dark Mode Activation via :has(#theme-toggle:checked)
   -------------------------------------------------------------------------- */
:root:has(#theme-toggle:checked),
body:has(#theme-toggle:checked) {
  --bg-body: #0B0F19;
  --bg-surface: #111827;
  --bg-surface-elevated: #1e293b;
  --border-color: #1e293b;
  --border-highlight: #334155;
  --text-heading: #f8fafc;
  --text-body: #cbd5e1;
  --text-muted: #94a3b8;
  --brand-primary: #3b3ba8;
  --brand-accent: #e4782c;
  --brand-primary-soft: rgba(59, 59, 168, 0.2);
  --nav-glass: rgba(11, 15, 25, 0.9);
  --card-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
  --card-hover-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.7), 0 0 25px rgba(228, 120, 44, 0.25);
}

/* --------------------------------------------------------------------------
   3. Core Semantic Themed Elements
   -------------------------------------------------------------------------- */
.themed-body {
  background-color: var(--bg-body);
  color: var(--text-body);
  transition: background-color 0.35s ease, color 0.35s ease, border-color 0.35s ease;
}
.themed-surface {
  background-color: var(--bg-surface);
  border-color: var(--border-color);
  box-shadow: var(--card-shadow);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.themed-surface-elevated {
  background-color: var(--bg-surface-elevated);
  border-color: var(--border-color);
}
.themed-heading {
  color: var(--text-heading);
}
.themed-subtext {
  color: var(--text-muted);
}
.themed-border {
  border-color: var(--border-color);
}
.themed-nav {
  background-color: var(--nav-glass);
  border-color: var(--border-color);
}

/* --------------------------------------------------------------------------
   4. Pure CSS Dark Mode Toggle Switch Animations (LTR & RTL Supported)
   -------------------------------------------------------------------------- */
#theme-toggle:checked ~ div .sun-icon {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
}
#theme-toggle:checked ~ div .moon-icon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}
#theme-toggle:checked ~ div .toggle-thumb {
  transform: translateX(28px);
  background-color: #e4782c;
}
[dir="rtl"] #theme-toggle:checked ~ div .toggle-thumb,
html[dir="rtl"] #theme-toggle:checked ~ div .toggle-thumb {
  transform: translateX(-28px);
}

/* --------------------------------------------------------------------------
   5. Pure CSS Portfolio Filtering (Zero-JS Radio Button Control)
   -------------------------------------------------------------------------- */
body:has(#filter-all:checked) .portfolio-item,
#filter-all:checked ~ .portfolio-container .portfolio-item {
  display: flex;
  animation: fadeInCard 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
body:has(#filter-web:checked) .portfolio-item,
#filter-web:checked ~ .portfolio-container .portfolio-item {
  display: none;
}
body:has(#filter-web:checked) .portfolio-item[data-cat*="web"],
#filter-web:checked ~ .portfolio-container .portfolio-item[data-cat*="web"] {
  display: flex;
  animation: fadeInCard 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
body:has(#filter-mobile:checked) .portfolio-item,
#filter-mobile:checked ~ .portfolio-container .portfolio-item {
  display: none;
}
body:has(#filter-mobile:checked) .portfolio-item[data-cat*="mobile"],
#filter-mobile:checked ~ .portfolio-container .portfolio-item[data-cat*="mobile"] {
  display: flex;
  animation: fadeInCard 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
body:has(#filter-saas:checked) .portfolio-item,
#filter-saas:checked ~ .portfolio-container .portfolio-item {
  display: none;
}
body:has(#filter-saas:checked) .portfolio-item[data-cat*="saas"],
#filter-saas:checked ~ .portfolio-container .portfolio-item[data-cat*="saas"] {
  display: flex;
  animation: fadeInCard 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

body:has(#filter-cloud:checked) .portfolio-item,
#filter-cloud:checked ~ .portfolio-container .portfolio-item {
  display: none;
}
body:has(#filter-cloud:checked) .portfolio-item[data-cat*="cloud"],
#filter-cloud:checked ~ .portfolio-container .portfolio-item[data-cat*="cloud"] {
  display: flex;
  animation: fadeInCard 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Active filter tab styles */
body:has(#filter-all:checked) label[for="filter-all"],
#filter-all:checked ~ div label[for="filter-all"],
body:has(#filter-web:checked) label[for="filter-web"],
#filter-web:checked ~ div label[for="filter-web"],
body:has(#filter-mobile:checked) label[for="filter-mobile"],
#filter-mobile:checked ~ div label[for="filter-mobile"],
body:has(#filter-saas:checked) label[for="filter-saas"],
#filter-saas:checked ~ div label[for="filter-saas"],
body:has(#filter-cloud:checked) label[for="filter-cloud"],
#filter-cloud:checked ~ div label[for="filter-cloud"] {
  background-color: #e4782c;
  color: #ffffff;
  border-color: #e4782c;
  box-shadow: 0 4px 14px rgba(228, 120, 44, 0.35);
}

/* --------------------------------------------------------------------------
   6. Mobile Hamburger Icon Transformation & Drawer Dropdown
   -------------------------------------------------------------------------- */
body:has(#mobile-menu-toggle:checked) .hamburger-line-1,
#mobile-menu-toggle:checked ~ div .hamburger-line-1 {
  transform: translateY(6px) rotate(45deg);
}
body:has(#mobile-menu-toggle:checked) .hamburger-line-2,
#mobile-menu-toggle:checked ~ div .hamburger-line-2 {
  opacity: 0;
}
body:has(#mobile-menu-toggle:checked) .hamburger-line-3,
#mobile-menu-toggle:checked ~ div .hamburger-line-3 {
  transform: translateY(-6px) rotate(-45deg);
}
body:has(#mobile-menu-toggle:checked) #mobile-drawer,
#mobile-menu-toggle:checked ~ div #mobile-drawer {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

/* --------------------------------------------------------------------------
   7. Micro-Interactions & Floating Animations
   -------------------------------------------------------------------------- */
@keyframes floatSoft {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}
@keyframes pulseSoft {
  0%, 100% { opacity: 0.2; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(1.05); }
}
@keyframes fadeInCard {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-float-slow {
  animation: floatSoft 5s ease-in-out infinite;
}
.animate-float-reverse {
  animation: floatSoft 6s ease-in-out -2.5s infinite;
}
.animate-glow-pulse {
  animation: pulseSoft 4s ease-in-out infinite;
}

/* --------------------------------------------------------------------------
   8. Custom Themed Scrollbar
   -------------------------------------------------------------------------- */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-body);
}
::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 9999px;
  border: 2px solid var(--bg-body);
}
:root:has(#theme-toggle:checked) ::-webkit-scrollbar-thumb {
  background: #334155;
}
::-webkit-scrollbar-thumb:hover {
  background: #e4782c;
}

/* --------------------------------------------------------------------------
   9. Interactive Form Radio Selection Pills
   -------------------------------------------------------------------------- */
input[type="radio"]:checked + label {
  border-color: #e4782c;
  background-color: rgba(228, 120, 44, 0.1);
  color: #e4782c;
  font-weight: 600;
}
[dir="rtl"] input[type="radio"]:checked + label {
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   10. Accessible Pure-CSS Details / Accordion Styling
   -------------------------------------------------------------------------- */
details > summary {
  list-style: none;
}
details > summary::-webkit-details-marker {
  display: none;
}
details[open] summary .accordion-chevron {
  transform: rotate(180deg);
}
[dir="rtl"] details[open] summary .accordion-chevron {
  transform: rotate(-180deg);
}