/* =========================================================
   HEROFIT GMS — UTILITIES
   utilities.css → helpers, scroll reveal, toast
   ========================================================= */

/* ---------- Display ---------- */
.d-flex   { display: flex; }
.d-grid   { display: grid; }
.d-block  { display: block; }
.d-none   { display: none; }
.d-inline-block { display: inline-block; }

/* ---------- Flexbox ---------- */
.flex-col        { flex-direction: column; }
.flex-wrap       { flex-wrap: wrap; }
.items-center    { align-items: center; }
.items-start     { align-items: flex-start; }
.justify-center  { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2  { gap: var(--space-2); }
.gap-3  { gap: var(--space-3); }
.gap-4  { gap: var(--space-4); }
.gap-6  { gap: var(--space-6); }
.gap-8  { gap: var(--space-8); }

/* ---------- Spacing ---------- */
.m-0   { margin: 0; }
.mt-0  { margin-top: 0; }
.mt-4  { margin-top: var(--space-4); }
.mt-8  { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mt-16 { margin-top: var(--space-16); }
.mb-0  { margin-bottom: 0; }
.mb-4  { margin-bottom: var(--space-4); }
.mb-6  { margin-bottom: var(--space-6); }
.mb-8  { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }
.mx-auto { margin-inline: auto; }

/* ---------- Text ---------- */
.text-left    { text-align: left; }
.text-center  { text-align: center; }
.text-right   { text-align: right; }
.text-xs      { font-size: var(--text-xs); }
.text-sm      { font-size: var(--text-sm); }
.text-base    { font-size: var(--text-base); }
.text-lg      { font-size: var(--text-lg); }
.text-xl      { font-size: var(--text-xl); }
.font-medium  { font-weight: var(--font-medium); }
.font-semibold{ font-weight: var(--font-semibold); }
.font-bold    { font-weight: var(--font-bold); }
.uppercase    { text-transform: uppercase; }
.tracking-wide{ letter-spacing: 0.05em; }

.text-primary { color: var(--color-primary); }
.text-navy    { color: var(--color-navy); }
.text-muted   { color: var(--color-text-muted); }
.text-white   { color: var(--color-white); }
.text-green   { color: var(--color-green); }

/* ---------- Sizing ---------- */
.w-full       { width: 100%; }
.max-w-sm     { max-width: 480px; }
.max-w-md     { max-width: 640px; }
.max-w-lg     { max-width: 800px; }

/* ---------- Borders & Backgrounds ---------- */
.bg-white     { background-color: var(--color-white); }
.bg-bg        { background-color: var(--color-bg); }
.bg-navy      { background-color: var(--color-navy); color: var(--color-white); }
.border       { border: 1px solid var(--color-border); }
.rounded      { border-radius: var(--radius-md); }
.rounded-lg   { border-radius: var(--radius-lg); }
.rounded-xl   { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }
.shadow-sm    { box-shadow: var(--shadow-sm); }
.shadow-md    { box-shadow: var(--shadow-md); }
.shadow-lg    { box-shadow: var(--shadow-lg); }

/* ---------- Scroll Reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

.reveal-left  { opacity: 0; transform: translateX(-30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal-right { opacity: 0; transform: translateX(30px);  transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal-left.visible, .reveal-right.visible { opacity: 1; transform: translateX(0); }

/* Stagger delays */
.reveal-stagger > *:nth-child(1) { transition-delay: 0s; }
.reveal-stagger > *:nth-child(2) { transition-delay: .08s; }
.reveal-stagger > *:nth-child(3) { transition-delay: .16s; }
.reveal-stagger > *:nth-child(4) { transition-delay: .24s; }
.reveal-stagger > *:nth-child(5) { transition-delay: .32s; }
.reveal-stagger > *:nth-child(6) { transition-delay: .40s; }
.reveal-stagger > *:nth-child(7) { transition-delay: .48s; }
.reveal-stagger > *:nth-child(8) { transition-delay: .56s; }

/* ---------- Toast / Notification ---------- */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.toast {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  min-width: 280px;
  max-width: 380px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text);
  animation: slideInRight 0.3s ease;
}

.toast--success { border-left: 4px solid var(--color-green); }
.toast--error   { border-left: 4px solid var(--color-primary); }
.toast--info    { border-left: 4px solid var(--color-blue); }

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .hidden-mobile  { display: none !important; }
}
@media (min-width: 769px) {
  .hidden-desktop { display: none !important; }
}