/*
==================================================
ARQUIVO: /shared/z-index.css
SISTEMA: ImaginaTech - Design System
VERSAO: 1.0
DESCRICAO: Sistema padronizado de z-index e utilities
==================================================
*/

:root {
    /* =========================
       Z-INDEX SYSTEM
       Escala padronizada para evitar conflitos
       ========================= */
    --z-behind: -1;
    --z-base: 0;
    --z-raised: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-navbar: 400;
    --z-sidebar: 500;
    --z-overlay: 900;
    --z-modal: 1000;
    --z-popover: 1100;
    --z-toast: 1200;
    --z-tooltip: 1300;
    --z-loading: 9999;

    /* =========================
       SPACING UTILITIES
       ========================= */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
}

/* =========================
   DISPLAY UTILITIES
   ========================= */
.hidden {
    display: none !important;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.visible {
    visibility: visible !important;
}

.invisible {
    visibility: hidden !important;
}

/* =========================
   FLEX UTILITIES
   ========================= */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* =========================
   SPACING UTILITIES
   ========================= */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-xs); }
.mt-2 { margin-top: var(--space-sm); }
.mt-3 { margin-top: var(--space-md); }
.mt-4 { margin-top: var(--space-lg); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-xs); }
.mb-2 { margin-bottom: var(--space-sm); }
.mb-3 { margin-bottom: var(--space-md); }
.mb-4 { margin-bottom: var(--space-lg); }

.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }

.p-0 { padding: 0; }
.p-1 { padding: var(--space-xs); }
.p-2 { padding: var(--space-sm); }
.p-3 { padding: var(--space-md); }
.p-4 { padding: var(--space-lg); }

/* =========================
   WIDTH UTILITIES
   ========================= */
.w-full { width: 100%; }
.w-auto { width: auto; }
.max-w-full { max-width: 100%; }

/* =========================
   TEXT UTILITIES
   ========================= */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-uppercase { text-transform: uppercase; }
.text-capitalize { text-transform: capitalize; }
.font-bold { font-weight: 700; }
.font-medium { font-weight: 500; }

/* =========================
   ACCESSIBILITY FOCUS
   ========================= */
.focus-visible:focus {
    outline: 2px solid var(--neon-blue, #00D4FF);
    outline-offset: 2px;
}

*:focus-visible {
    outline: 2px solid var(--neon-blue, #00D4FF);
    outline-offset: 2px;
}

/* Skip link for keyboard navigation */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--neon-blue, #00D4FF);
    color: #000;
    padding: 8px 16px;
    z-index: var(--z-loading);
    text-decoration: none;
    font-weight: 600;
}

.skip-link:focus {
    top: 0;
}

/* =========================
   ADDITIONAL UTILITIES
   ========================= */

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

/* Position */
.pos-relative { position: relative; }
.pos-absolute { position: absolute; }
.pos-fixed { position: fixed; }

/* Grid span */
.col-full { grid-column: 1 / -1; }

/* Font */
.font-mono { font-family: 'Orbitron', monospace; }
.font-secondary { font-family: monospace; }
.letter-spacing-1 { letter-spacing: 1px; }
.letter-spacing-2 { letter-spacing: 2px; }

/* Colors (text) */
.text-secondary { color: var(--text-secondary); }
.text-primary { color: var(--text-primary); }

/* Font size */
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.text-lg { font-size: 1.125rem; }

/* Flex utilities */
.flex-1 { flex: 1; }
.flex-2 { flex: 2; }
.flex-3 { flex: 3; }
.flex-grow { flex-grow: 1; }
.flex-shrink-0 { flex-shrink: 0; }

/* Border */
.border-purple { border: 2px solid var(--neon-purple); }

/* Width utilities */
.max-w-500 { max-width: 500px; }
.max-w-600 { max-width: 600px; }
.max-w-800 { max-width: 800px; }

/* Order code style */
.order-code-style {
    text-transform: uppercase;
    font-family: monospace;
    font-weight: bold;
    letter-spacing: 2px;
}

/* Tracking code style */
.tracking-code-style {
    text-transform: uppercase;
    font-family: 'Orbitron', monospace;
    letter-spacing: 1px;
    border: 2px solid var(--neon-purple);
}

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

@media (min-width: 769px) {
    .hide-desktop { display: none !important; }
}