/* ==========================================================================
   Capital Skill Works — CSWPortfolio.com Design System & Stylesheet
   Pure Vanilla CSS matching the official brand identity of capitalskillworks.com
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens & CSS Variables
   -------------------------------------------------------------------------- */
:root {
  color-scheme: light;
  
  /* Primary Brand Blue */
  --csw-primary: 37 99 235;             /* #2563eb */
  --csw-primary-hover: 29 78 216;       /* #1d4ed8 */
  --csw-primary-ink: 37 99 235;         /* #2563eb */
  --csw-primary-soft: 239 246 255;      /* #eff6ff */
  --csw-primary-soft-border: 191 219 254;/* #bfdbfe */
  --csw-primary-soft-ink: 30 64 175;    /* #1e40af */
  --csw-on-primary: 255 255 255;        /* #ffffff */
  --csw-focus: 59 130 246;              /* #3b82f6 */

  /* Neutral Surface & Canvas (Light Theme) */
  --csw-canvas: 248 250 252;            /* #f8fafc */
  --csw-surface: 255 255 255;           /* #ffffff */
  --csw-surface-raised: 255 255 255;    /* #ffffff */
  --csw-surface-sunken: 241 245 249;    /* #f1f5f9 */

  /* Ink / Typography */
  --csw-ink: 15 23 42;                  /* #0f172a */
  --csw-ink-secondary: 71 85 105;       /* #475569 */
  --csw-ink-muted: 95 110 133;          /* #5f6e85 */

  /* Lines & Borders */
  --csw-line: 226 232 240;              /* #e2e8f0 */
  --csw-line-strong: 132 148 171;       /* #8494ab */

  /* Inverse (Dark Hero & Footer) */
  --csw-inverse: 15 23 42;              /* #0f172a */
  --csw-inverse-raised: 30 41 59;       /* #1e293b */
  --csw-on-inverse: 248 250 252;        /* #f8fafc */
  --csw-on-inverse-muted: 203 213 225;  /* #cbd5e1 */
  --csw-on-inverse-accent: 96 165 250;  /* #60a5fa */

  /* Accent (Steel / Teal for software house) */
  --csw-accent: 15 118 110;             /* #0f766e */
  --csw-accent-hover: 17 94 89;         /* #115e59 */
  --csw-on-accent: 255 255 255;

  /* Geometry & Radii */
  --radius-control: 6px;
  --radius-card: 10px;
  --radius-block: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-soft: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-card: 0 1px 3px rgba(15, 23, 42, 0.05), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-raised: 0 10px 30px -4px rgba(15, 23, 42, 0.12), 0 4px 6px -2px rgba(15, 23, 42, 0.05);

  /* Typography Stacks */
  --font-display: 'Archivo', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Container */
  --max-width: 80rem; /* 1280px */
}

/* Dark Theme Overrides */
:root[data-theme="dark"],
.dark {
  color-scheme: dark;
  --csw-canvas: 11 18 32;               /* #0b1220 */
  --csw-surface: 19 29 51;              /* #131d33 */
  --csw-surface-raised: 27 39 64;       /* #1b2740 */
  --csw-surface-sunken: 8 13 24;        /* #080d18 */
  --csw-ink: 232 237 245;               /* #e8edf5 */
  --csw-ink-secondary: 175 186 203;     /* #afbacb */
  --csw-ink-muted: 138 151 172;         /* #8a97ac */
  --csw-line: 36 49 75;                 /* #24314b */
  --csw-line-strong: 100 117 145;       /* #647591 */
  --csw-primary: 37 99 235;             /* #2563eb */
  --csw-primary-hover: 48 105 222;      /* #3069de */
  --csw-primary-ink: 96 165 250;        /* #60a5fa */
  --csw-primary-soft: 21 37 71;         /* #152547 */
  --csw-primary-soft-border: 30 58 138;
  --csw-primary-soft-ink: 147 197 253;
  --csw-focus: 96 165 250;
  --csw-inverse: 27 39 64;
  --csw-inverse-raised: 34 49 76;
  --csw-on-inverse: 232 237 245;
  --csw-on-inverse-muted: 182 194 212;
  --csw-on-inverse-accent: 96 165 250;
  --csw-accent: 20 184 166;
  --shadow-soft: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-raised: 0 10px 30px -4px rgba(0, 0, 0, 0.5);
}

/* --------------------------------------------------------------------------
   2. Base Reset & Typography
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  tab-size: 4;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: rgb(var(--csw-canvas));
  color: rgb(var(--csw-ink));
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg, video {
  display: block;
  max-width: 100%;
  height: auto;
}

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

button {
  font-family: inherit;
  font-size: 100%;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

ul, ol {
  list-style: none;
}

/* Accessibility Skip Link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background-color: rgb(var(--csw-primary));
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-control);
  font-weight: 600;
  z-index: 9999;
  transition: top 0.2s ease;
}
.skip-link:focus {
  top: 1rem;
  outline: 2px solid #fff;
}

/* Global Focus Ring */
:focus-visible {
  outline: 2px solid rgb(var(--csw-focus));
  outline-offset: 2px;
}

/* Layout Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}
@media (max-width: 360px) {
  .container {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }
}
@media (min-width: 640px) {
  .container {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}
@media (min-width: 1024px) {
  .container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

/* Typography Classes */
.font-display {
  font-family: var(--font-display);
}
.font-sans {
  font-family: var(--font-sans);
}
.font-mono {
  font-family: var(--font-mono);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: rgb(var(--csw-primary-ink));
  margin-bottom: 0.5rem;
}
.eyebrow-inverse {
  color: rgb(var(--csw-on-inverse-accent));
}

.section-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: rgb(var(--csw-ink));
}
@media (min-width: 640px) {
  .section-title {
    font-size: 2.5rem;
  }
}

.section-lead {
  margin-top: 1rem;
  font-size: 1.125rem;
  line-height: 1.7;
  color: rgb(var(--csw-ink-secondary));
  max-width: 62ch;
}

/* --------------------------------------------------------------------------
   3. Buttons & Interactive Controls
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-control);
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.25;
  transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
  white-space: nowrap;
  text-align: center;
}

.btn-primary {
  background-color: rgb(var(--csw-primary));
  color: rgb(var(--csw-on-primary));
  border: 1px solid transparent;
}
.btn-primary:hover {
  background-color: rgb(var(--csw-primary-hover));
}

.btn-secondary {
  background-color: rgb(var(--csw-surface));
  color: rgb(var(--csw-ink));
  border: 1px solid rgb(var(--csw-line-strong));
}
.btn-secondary:hover {
  background-color: rgb(var(--csw-surface-sunken));
  color: rgb(var(--csw-ink));
}

.btn-outline-inverse {
  background-color: transparent;
  color: rgb(var(--csw-on-inverse));
  border: 1px solid rgba(248, 250, 252, 0.35);
}
.btn-outline-inverse:hover {
  background-color: rgba(248, 250, 252, 0.1);
  border-color: rgba(248, 250, 252, 0.6);
}

.btn-whatsapp {
  background-color: #25d366;
  color: #ffffff;
  border: 1px solid transparent;
}
.btn-whatsapp:hover {
  background-color: #20ba59;
}

.btn-ghost {
  color: rgb(var(--csw-primary-ink));
  background-color: transparent;
  padding-left: 0.75rem;
  padding-right: 0.75rem;
}
.btn-ghost:hover {
  background-color: rgb(var(--csw-primary-soft));
}

.link-action {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-weight: 600;
  font-size: 0.875rem;
  color: rgb(var(--csw-primary-ink));
  border-bottom: 2px solid rgb(var(--csw-primary));
  padding-bottom: 2px;
  transition: opacity 0.15s ease;
}
.link-action:hover {
  opacity: 0.85;
}

/* Theme Switcher Button */
.btn-theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-control);
  color: rgb(var(--csw-ink-secondary));
  transition: background-color 0.18s ease, color 0.18s ease;
}
.btn-theme-toggle:hover {
  background-color: rgb(var(--csw-surface-sunken));
  color: rgb(var(--csw-ink));
}

.btn-theme-toggle svg,
.mobile-menu-btn svg {
  pointer-events: none;
}

.icon-sun, .icon-moon {
  width: 1.25rem;
  height: 1.25rem;
}
[data-theme="dark"] .icon-sun,
.dark .icon-sun {
  display: block;
}
[data-theme="dark"] .icon-moon,
.dark .icon-moon {
  display: none;
}
:root:not([data-theme="dark"]) .icon-sun {
  display: none;
}
:root:not([data-theme="dark"]) .icon-moon {
  display: block;
}

/* --------------------------------------------------------------------------
   4. Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgb(var(--csw-surface));
  border-bottom: 1px solid rgb(var(--csw-line));
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  min-height: 4.375rem;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  border-radius: var(--radius-control);
}

.brand-logo {
  height: 2.375rem;
  width: auto;
  max-width: 9rem;
  object-contain: contain;
}

.brand-text {
  display: grid;
  line-height: 1.15;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: rgb(var(--csw-ink));
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgb(var(--csw-ink-muted));
  margin-top: 0.125rem;
}
@media (max-width: 480px) {
  .brand-sub {
    display: none;
  }
}

.main-nav {
  display: none;
}
@media (min-width: 1024px) {
  .main-nav {
    display: block;
  }
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  display: block;
  padding: 0.625rem 0.75rem;
  border-radius: var(--radius-control);
  font-size: 0.875rem;
  font-weight: 500;
  color: rgb(var(--csw-ink-secondary));
  transition: color 0.15s ease, background-color 0.15s ease;
}
.nav-link:hover {
  color: rgb(var(--csw-ink));
  background-color: rgb(var(--csw-surface-sunken));
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.header-actions .desktop-actions {
  display: none;
  align-items: center;
  gap: 0.5rem;
}
@media (min-width: 640px) {
  .header-actions .desktop-actions {
    display: flex;
  }
}

.mobile-menu-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-control);
  color: rgb(var(--csw-ink));
}
.mobile-menu-btn:hover {
  background-color: rgb(var(--csw-surface-sunken));
}
@media (min-width: 1024px) {
  .mobile-menu-btn {
    display: none;
  }
}

/* Mobile Drawer */
.mobile-nav {
  display: none;
  border-top: 1px solid rgb(var(--csw-line));
  background-color: rgb(var(--csw-surface));
  padding: 1rem 0;
}
.mobile-nav.is-open {
  display: block;
}
@media (min-width: 1024px) {
  .mobile-nav {
    display: none !important;
  }
}

.mobile-nav-list {
  display: grid;
  gap: 0.25rem;
}

.mobile-nav-link {
  display: block;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-control);
  font-size: 1rem;
  font-weight: 500;
  color: rgb(var(--csw-ink-secondary));
}
.mobile-nav-link:hover {
  color: rgb(var(--csw-ink));
  background-color: rgb(var(--csw-surface-sunken));
}

.mobile-cta-group {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgb(var(--csw-line));
  display: grid;
  gap: 0.5rem;
}

/* --------------------------------------------------------------------------
   5. Hero Section (Inverse Theme)
   -------------------------------------------------------------------------- */
.hero-section {
  background-color: rgb(var(--csw-inverse));
  color: rgb(var(--csw-on-inverse));
  padding-top: 3.5rem;
  padding-bottom: 2rem;
  position: relative;
  overflow: hidden;
}
@media (min-width: 640px) {
  .hero-section {
    padding-top: 5rem;
  }
}

.hero-grid {
  display: grid;
  align-items: center;
  gap: 2.5rem;
}
@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 3.5rem;
  }
}

.hero-content {
  max-width: 44rem;
}

.hero-title {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: rgb(var(--csw-on-inverse));
  margin-top: 0.75rem;
}
@media (min-width: 640px) {
  .hero-title {
    font-size: 3.25rem;
  }
}
@media (min-width: 1200px) {
  .hero-title {
    font-size: 3.75rem;
  }
}

.hero-lead {
  margin-top: 1.25rem;
  font-size: 1.125rem;
  line-height: 1.75;
  color: rgb(var(--csw-on-inverse-muted));
  max-width: 48ch;
}

.hero-subtext {
  margin-top: 0.75rem;
  font-size: 0.95rem;
  line-height: 1.6;
  color: rgb(var(--csw-on-inverse-muted));
  max-width: 48ch;
  opacity: 0.9;
}

.hero-btn-group {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
@media (min-width: 640px) {
  .hero-btn-group {
    flex-direction: row;
    align-items: center;
  }
}

.hero-visual-card {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background-color: rgb(var(--csw-inverse-raised));
  border: 1px solid rgba(248, 250, 252, 0.15);
  box-shadow: var(--shadow-raised);
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(125deg, rgba(37, 99, 235, 0.38), transparent 58%);
  mix-blend-mode: multiply;
  pointer-events: none;
}

.hero-visual-badge {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  right: 1rem;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(248, 250, 252, 0.2);
  border-radius: var(--radius-control);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hero-visual-badge p {
  font-size: 0.8125rem;
  color: rgb(var(--csw-on-inverse));
  font-weight: 500;
}

.hero-visual-badge span {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  color: rgb(var(--csw-on-inverse-accent));
}

/* Floating Hero Stats Bar */
.hero-stats-bar {
  margin-top: 2.5rem;
  border-radius: var(--radius-card);
  border: 1px solid rgb(var(--csw-line));
  background-color: rgb(var(--csw-surface));
  color: rgb(var(--csw-ink));
  box-shadow: var(--shadow-raised);
  display: grid;
  grid-template-columns: 1fr;
  position: relative;
  z-index: 2;
  transform: translateY(1.5rem);
}
@media (min-width: 640px) {
  .hero-stats-bar {
    grid-template-columns: repeat(3, 1fr);
    transform: translateY(2rem);
  }
}

.stat-item {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid rgb(var(--csw-line));
}
@media (min-width: 640px) {
  .stat-item {
    border-bottom: none;
    border-right: 1px solid rgb(var(--csw-line));
  }
  .stat-item:last-child {
    border-right: none;
  }
}

.stat-number {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: rgb(var(--csw-ink));
}

.stat-label {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: rgb(var(--csw-ink-muted));
}

/* --------------------------------------------------------------------------
   6. About CSWPortfolio Section
   -------------------------------------------------------------------------- */
.section-about {
  padding-top: 5rem;
  padding-bottom: 4rem;
}
@media (min-width: 640px) {
  .section-about {
    padding-top: 6.5rem;
    padding-bottom: 5.5rem;
  }
}

.relationship-grid {
  margin-top: 2.5rem;
  display: grid;
  gap: 1.5rem;
}
@media (min-width: 768px) {
  .relationship-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.domain-card {
  border-radius: var(--radius-card);
  border: 1px solid rgb(var(--csw-line));
  background-color: rgb(var(--csw-surface));
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: var(--shadow-soft);
  position: relative;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.domain-card:hover {
  border-color: rgb(var(--csw-line-strong));
  box-shadow: var(--shadow-card);
}

.domain-indicator {
  width: 2.75rem;
  height: 4px;
  border-radius: 2px;
  background-color: rgb(var(--csw-primary));
}
.indicator-steel {
  background-color: rgb(var(--csw-accent));
}

.domain-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
  color: rgb(var(--csw-primary-ink));
}
.tag-steel {
  color: rgb(var(--csw-accent));
}

.domain-name {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: rgb(var(--csw-ink));
}

.domain-desc {
  font-size: 0.95rem;
  line-height: 1.65;
  color: rgb(var(--csw-ink-secondary));
  flex-grow: 1;
}

.domain-footer {
  margin-top: auto;
  padding-top: 0.75rem;
}

/* --------------------------------------------------------------------------
   7. Courses Section
   -------------------------------------------------------------------------- */
.section-courses {
  background-color: rgb(var(--csw-surface-sunken));
  border-top: 1px solid rgb(var(--csw-line));
  border-bottom: 1px solid rgb(var(--csw-line));
  padding-top: 4.5rem;
  padding-bottom: 5.5rem;
}

.courses-header {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
@media (min-width: 640px) {
  .courses-header {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }
}

/* Category Filter Bar */
.filter-nav {
  margin-top: 2rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.filter-nav::-webkit-scrollbar {
  display: none;
}

.filter-list {
  display: flex;
  gap: 0.5rem;
  width: max-content;
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  min-height: 2.25rem;
  padding: 0.375rem 0.875rem;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  border: 1px solid rgb(var(--csw-line-strong));
  background-color: rgb(var(--csw-surface));
  color: rgb(var(--csw-ink));
  transition: all 0.15s ease;
}
.filter-btn:hover {
  border-color: rgb(var(--csw-primary));
  color: rgb(var(--csw-primary-ink));
}
.filter-btn.is-active {
  background-color: rgb(var(--csw-primary));
  border-color: rgb(var(--csw-primary));
  color: rgb(var(--csw-on-primary));
}

/* Course Grid & Cards */
.course-grid {
  margin-top: 2rem;
  display: grid;
  gap: 1.5rem;
}
@media (min-width: 640px) {
  .course-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .course-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.course-card {
  border-radius: var(--radius-card);
  border: 1px solid rgb(var(--csw-line));
  background-color: rgb(var(--csw-surface));
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-soft);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.course-card:hover {
  transform: translateY(-2px);
  border-color: rgb(var(--csw-line-strong));
  box-shadow: var(--shadow-card);
}

.course-thumb-wrap {
  position: relative;
  aspect-ratio: 16 / 9;
  background-color: rgb(var(--csw-inverse));
  overflow: hidden;
}

.course-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.course-thumb-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(125deg, rgba(37, 99, 235, 0.35), transparent 60%);
  mix-blend-mode: multiply;
}

.course-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex-grow: 1;
}

.course-cat {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgb(var(--csw-primary-ink));
  font-weight: 600;
}

.course-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.3;
  color: rgb(var(--csw-ink));
}

.course-title a:hover {
  color: rgb(var(--csw-primary-ink));
}

.course-desc {
  font-size: 0.875rem;
  line-height: 1.55;
  color: rgb(var(--csw-ink-secondary));
}

.course-fee-wrap {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.course-fee {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  color: rgb(var(--csw-ink));
}

.course-monthly {
  font-size: 0.8125rem;
  color: rgb(var(--csw-ink-secondary));
}

.course-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-top: 0.25rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-control);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.03em;
  background-color: rgb(var(--csw-surface-sunken));
  border: 1px solid rgb(var(--csw-line));
  color: rgb(var(--csw-ink-secondary));
}

.course-actions {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid rgb(var(--csw-line));
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* --------------------------------------------------------------------------
   8. Practical Learning Section (4 Steps)
   -------------------------------------------------------------------------- */
.section-learning {
  padding-top: 5rem;
  padding-bottom: 5.5rem;
}

.steps-grid {
  margin-top: 3rem;
  display: grid;
  gap: 1.5rem;
}
@media (min-width: 640px) {
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .steps-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.step-card {
  border-radius: var(--radius-card);
  border: 1px solid rgb(var(--csw-line));
  background-color: rgb(var(--csw-surface));
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  position: relative;
  box-shadow: var(--shadow-soft);
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.step-card:hover {
  transform: translateY(-2px);
  border-color: rgb(var(--csw-primary));
}

.step-number {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgb(var(--csw-primary-ink));
  background-color: rgb(var(--csw-primary-soft));
  border: 1px solid rgb(var(--csw-primary-soft-border));
  width: fit-content;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-control);
}

.step-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  color: rgb(var(--csw-ink));
}

.step-desc {
  font-size: 0.875rem;
  line-height: 1.6;
  color: rgb(var(--csw-ink-secondary));
}

/* --------------------------------------------------------------------------
   9. Student Portfolio Section (Subdomains & Showcase)
   -------------------------------------------------------------------------- */
.section-portfolio {
  background-color: rgb(var(--csw-surface-sunken));
  border-top: 1px solid rgb(var(--csw-line));
  border-bottom: 1px solid rgb(var(--csw-line));
  padding-top: 5rem;
  padding-bottom: 5.5rem;
}

.portfolio-layout {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}
@media (min-width: 1024px) {
  .portfolio-layout {
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
  }
}

.subdomain-terminal {
  border-radius: var(--radius-card);
  border: 1px solid rgb(var(--csw-line));
  background-color: rgb(var(--csw-surface));
  box-shadow: var(--shadow-raised);
  overflow: hidden;
}

.terminal-header {
  background-color: rgb(var(--csw-surface-sunken));
  border-bottom: 1px solid rgb(var(--csw-line));
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.terminal-dot {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: var(--radius-full);
  background-color: rgb(var(--csw-line-strong));
}

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: rgb(var(--csw-ink-muted));
  margin-left: 0.5rem;
}

.terminal-body {
  padding: 1.25rem;
  display: grid;
  gap: 1rem;
}

.subdomain-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-control);
  background-color: rgb(var(--csw-canvas));
  border: 1px solid rgb(var(--csw-line));
}
@media (max-width: 360px) {
  .subdomain-row {
    flex-direction: column;
    align-items: flex-start;
  }
}

.subdomain-url {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  color: rgb(var(--csw-primary-ink));
}

.subdomain-status {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-full);
  background-color: rgb(var(--csw-primary-soft));
  color: rgb(var(--csw-primary-soft-ink));
  border: 1px solid rgb(var(--csw-primary-soft-border));
}

.subdomain-note {
  font-size: 0.8125rem;
  line-height: 1.55;
  color: rgb(var(--csw-ink-muted));
  font-style: italic;
  padding: 0 0.5rem;
}

/* --------------------------------------------------------------------------
   10. Educational Benefits Section
   -------------------------------------------------------------------------- */
.section-benefits {
  padding-top: 5rem;
  padding-bottom: 5.5rem;
}

.benefits-grid {
  margin-top: 3rem;
  display: grid;
  gap: 1.25rem;
}
@media (min-width: 640px) {
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .benefits-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.benefit-item {
  border-radius: var(--radius-card);
  border: 1px solid rgb(var(--csw-line));
  background-color: rgb(var(--csw-surface));
  padding: 1.5rem;
  display: flex;
  gap: 1rem;
  box-shadow: var(--shadow-soft);
}

.benefit-icon {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-control);
  background-color: rgb(var(--csw-primary-soft));
  color: rgb(var(--csw-primary-ink));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
}

.benefit-content h3 {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  color: rgb(var(--csw-ink));
}

.benefit-content p {
  margin-top: 0.375rem;
  font-size: 0.875rem;
  line-height: 1.55;
  color: rgb(var(--csw-ink-secondary));
}

/* --------------------------------------------------------------------------
   11. Call to Action Banner (Inverse)
   -------------------------------------------------------------------------- */
.section-cta {
  padding-top: 2rem;
  padding-bottom: 5rem;
}

.cta-box {
  background-color: rgb(var(--csw-inverse));
  color: rgb(var(--csw-on-inverse));
  border-radius: var(--radius-block);
  padding: 2.5rem 1.5rem;
  border: 1px solid rgba(248, 250, 252, 0.1);
  box-shadow: var(--shadow-raised);
  display: grid;
  gap: 1.75rem;
}
@media (min-width: 640px) {
  .cta-box {
    padding: 3.5rem 3rem;
  }
}
@media (min-width: 1024px) {
  .cta-box {
    grid-template-columns: 1.3fr auto;
    align-items: center;
  }
}

.cta-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
}
@media (min-width: 640px) {
  .cta-title {
    font-size: 2.25rem;
  }
}

.cta-text {
  margin-top: 0.75rem;
  font-size: 1rem;
  line-height: 1.65;
  color: rgb(var(--csw-on-inverse-muted));
  max-width: 52ch;
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
@media (min-width: 640px) {
  .cta-actions {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

/* --------------------------------------------------------------------------
   12. Contact Section
   -------------------------------------------------------------------------- */
.section-contact {
  background-color: rgb(var(--csw-surface-sunken));
  border-top: 1px solid rgb(var(--csw-line));
  padding-top: 5rem;
  padding-bottom: 5.5rem;
}

.contact-grid {
  margin-top: 3rem;
  display: grid;
  gap: 2rem;
}
@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
  }
}

.contact-card {
  border-radius: var(--radius-card);
  border: 1px solid rgb(var(--csw-line));
  background-color: rgb(var(--csw-surface));
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  box-shadow: var(--shadow-soft);
}

.contact-info-list {
  display: grid;
  gap: 1rem;
  border-top: 1px solid rgb(var(--csw-line));
  padding-top: 1.25rem;
}

.contact-item {
  display: grid;
  gap: 0.25rem;
}
@media (min-width: 640px) {
  .contact-item {
    grid-template-columns: 8rem 1fr;
    align-items: baseline;
  }
}

.contact-item-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgb(var(--csw-ink-muted));
}

.contact-item-value {
  font-size: 0.95rem;
  color: rgb(var(--csw-ink));
  font-weight: 500;
}

.contact-item-value a {
  color: rgb(var(--csw-primary-ink));
  text-decoration: underline;
  text-underline-offset: 3px;
}
.contact-item-value a:hover {
  color: rgb(var(--csw-primary-hover));
}

.payment-notice {
  background-color: rgb(var(--csw-primary-soft));
  border: 1px solid rgb(var(--csw-primary-soft-border));
  border-radius: var(--radius-control);
  padding: 1rem;
  font-size: 0.875rem;
  line-height: 1.55;
  color: rgb(var(--csw-primary-soft-ink));
}

/* --------------------------------------------------------------------------
   13. Footer (Inverse Theme)
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: rgb(var(--csw-inverse));
  color: rgb(var(--csw-on-inverse-muted));
  border-top: 1px solid rgba(248, 250, 252, 0.12);
  margin-top: auto;
}

.footer-main {
  padding-top: 4rem;
  padding-bottom: 3.5rem;
  display: grid;
  gap: 2.5rem;
}
@media (min-width: 640px) {
  .footer-main {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .footer-main {
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
  }
}

.footer-brand p {
  margin-top: 1rem;
  font-size: 0.875rem;
  line-height: 1.6;
  max-width: 34ch;
  color: rgb(var(--csw-on-inverse-muted));
}

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: rgb(var(--csw-on-inverse));
  margin-bottom: 1rem;
}

.footer-links {
  display: grid;
  gap: 0.625rem;
  font-size: 0.875rem;
}

.footer-link {
  color: rgb(var(--csw-on-inverse-muted));
  transition: color 0.15s ease;
}
.footer-link:hover {
  color: rgb(var(--csw-on-inverse));
}

.footer-bottom {
  border-top: 1px solid rgba(248, 250, 252, 0.1);
  padding-top: 1.25rem;
  padding-bottom: 1.25rem;
}

.footer-bottom-inner {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.75rem;
}
@media (min-width: 640px) {
  .footer-bottom-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.footer-bottom-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

/* --------------------------------------------------------------------------
   14. Accessibility & Reduced Motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}