/**
 * SpyroSys Design System — Responsive Grids, Navigation & Breakpoints
 *
 * @package SpyroSys
 * @version 1.0.0
 */

/* ==========================================================================
   1. Responsive Layout Grids (Mobile-First)
   ========================================================================== */
.grid {
  display: grid;
  gap: var(--sp-lg);
  grid-template-columns: 1fr;
}

.layout-with-sidebar {
  display: grid;
  gap: var(--sp-2xl);
  grid-template-columns: 1fr;
}

.site-main {
  min-width: 0;
}

.site-sidebar {
  min-width: 0;
}

/* ==========================================================================
   2. Header & Desktop Navigation
   ========================================================================== */
.site-header {
  background: #181E28;
  /* background-color: var(--surface-header); */
  /* border-bottom: 1px solid var(--surface-border); */
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.site-branding {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.site-title {
  font-size: var(--font-size-h4);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: 0;
}

.site-title a {
  color: var(--color-primary);
}

.site-title a:hover {
  color: var(--color-accent);
}

.site-description {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin-bottom: 0;
}

/* Navigation Menu Toggle (Mobile) */
.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 0.5rem 0.75rem;
  color: var(--color-primary);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
}

.menu-toggle:hover {
  background-color: var(--color-neutral-100);
}

.menu-toggle__icon {
  display: inline-block;
  width: 22px;
  height: 2px;
  background-color: var(--color-primary);
  position: relative;
  transition: all var(--transition-fast);
}

.menu-toggle__icon::before,
.menu-toggle__icon::after {
  content: '';
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background-color: var(--color-primary);
  transition: all var(--transition-fast);
}

.menu-toggle__icon::before {
  top: -6px;
}

.menu-toggle__icon::after {
  bottom: -6px;
}

.main-navigation {
  display: none;
}

/* ==========================================================================
   3. Media Query Breakpoints (Mobile-First)
   ========================================================================== */

/* Breakpoint 1: 480px (Large Phones / Phablets) */
@media (min-width: 480px) {
  .grid-cols-2-xs {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-col--brand {
    grid-column: span 2;
  }
}

/* Breakpoint 2: 768px (Tablets & Landscape) */
@media (min-width: 768px) {
  .top-bar {
    display: block;
  }

  /* Hide Mobile Sticky Bar on Tablet & Desktop */
  .mobile-sticky-bar {
    display: none;
  }

  body {
    padding-bottom: 0;
  }

  .grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-col--brand {
    grid-column: span 3;
  }

  .final-cta__box {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .final-cta__actions {
    width: auto;
    flex-shrink: 0;
  }

  .site-info {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* Breakpoint 3: 1024px (Desktops / Laptops) */
@media (min-width: 1024px) {

  /* Layout with Sidebar */
  .layout-with-sidebar {
    grid-template-columns: minmax(0, 2.75fr) minmax(0, 1fr);
  }

  /* Desktop Header Actions */
  .btn-header-whatsapp,
  .btn-header-login {
    display: inline-flex;
  }

  /* Hide Mobile Toggle on Desktop */
  .menu-toggle {
    display: none;
  }

  /* Desktop Navigation: Horizontal Bar */
  .main-navigation {
    display: flex !important;
    align-items: center;
  }

  .main-navigation ul {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0.25rem;
  }

  .main-navigation li {
    position: relative;
    margin-bottom: 0;
  }

  .main-navigation a {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 0.5rem 0.75rem;
    /* color: var(--text-heading); */
    color: #fff;
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-semibold);
    font-size: 0.9375rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
  }

  .main-navigation a:hover,
  .main-navigation .current-menu-item>a,
  .main-navigation .current_page_item>a {
    color: var(--color-accent);
    /* background-color: var(--color-neutral-100); */
  }

  /* Dropdown Sub-menus in Desktop */
  .main-navigation ul ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 230px;
    background-color: var(--surface-card);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    padding: var(--sp-xs);
    flex-direction: column;
    gap: 2px;
    z-index: 1000;
  }

  .main-navigation li:hover>ul,
  .main-navigation li:focus-within>ul {
    display: flex;
  }

  .main-navigation ul ul a {
    padding: 0.5rem 0.75rem;
    font-size: var(--font-size-sm);
    color: var(--text-main);
  }

  .main-navigation ul ul a:hover {
    background-color: var(--color-neutral-100);
    color: var(--color-accent);
  }

  /* 6-Column Footer on Desktop */
  .footer-grid {
    grid-template-columns: 1.8fr 1.2fr 1.2fr 1.2fr 1.2fr 1.6fr;
  }

  .footer-col--brand {
    grid-column: auto;
  }

  .grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Breakpoint 4: 1280px (Large Desktops) */
@media (min-width: 1280px) {
  .site-header__inner {
    min-height: 80px;
  }

  .main-navigation a {
    padding: 0.5rem 0.9rem;
    font-size: 1rem;
  }
}

/* Breakpoint 5: 1440px+ (Ultra-Wide Displays) */
@media (min-width: 1440px) {
  .container-wide {
    max-width: 1440px;
  }

  .site-header__inner {
    min-height: 88px;
  }
}

/* Breakpoint 0: Under 375px (Small / Compact Devices e.g. iPhone SE, 320px) */
@media (max-width: 375px) {

  .container,
  .container-wide,
  .container-narrow {
    padding-left: var(--sp-sm);
    padding-right: var(--sp-sm);
  }

  .btn {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-sm);
  }

  .course-card__footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .course-card__actions {
    width: 100%;
    margin-top: var(--sp-xs);
  }

  .course-card__actions .btn {
    width: 100%;
  }

  .top-bar__contact {
    gap: var(--sp-sm);
    font-size: 0.75rem;
  }
}