/* ==========================================================================
   Baharak — Components
   Buttons, cards, badges, icon sizing, grids, utilities, animations.
   ========================================================================== */

/* ----- Buttons ----- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-family: inherit;
    font-size: var(--text-md);
    font-weight: 500;
    line-height: 1.5;
    border: 1px solid transparent;
    border-radius: var(--radius-full);
    cursor: pointer;
    text-align: center;
    transition: background-color 180ms ease, color 180ms ease,
                border-color 180ms ease, transform 120ms ease;
}

.btn:hover { text-decoration: none; }

.btn:active {
    transform: scale(0.98);
}

.btn:disabled,
.btn[aria-disabled="true"] {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--color-primary-600);
    color: var(--text-inverse);
}

.btn-primary:hover {
    background: var(--color-primary-700);
    color: var(--text-inverse);
}

.btn-outline {
    background: transparent;
    border-color: var(--color-border-strong);
    color: var(--text-strong);
}

.btn-outline:hover {
    border-color: var(--color-primary-600);
    color: var(--color-primary-700);
    background: var(--color-primary-50);
}

.btn-secondary {
    background: var(--color-secondary-500);
    color: #FFFFFF;
}

.btn-secondary:hover {
    background: var(--color-secondary-600);
    color: #FFFFFF;
}

.btn-ghost {
    background: transparent;
    color: var(--color-primary-700);
}

.btn-ghost:hover {
    background: var(--color-primary-50);
}

.btn-sm { padding: var(--space-2) var(--space-4); font-size: var(--text-sm); }
.btn-lg { padding: var(--space-4) var(--space-7); font-size: var(--text-lg); }
.btn-block { width: 100%; }

/* ----- Cards ----- */

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 200ms ease, transform 200ms ease;
}

.card--hover:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

/* ----- Badges ----- */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.125rem var(--space-3);
    font-size: var(--text-xs);
    font-weight: 500;
    line-height: 1.6;
    border-radius: var(--radius-full);
}

.badge-primary   { background: var(--color-primary-50);  color: var(--color-primary-700); }
.badge-secondary { background: var(--color-secondary-50); color: var(--color-secondary-600); }
.badge-accent    { background: var(--color-accent-100);  color: var(--color-accent-600); }
.badge-success   { background: var(--color-success-bg);  color: var(--color-success); }
.badge-warning   { background: var(--color-warning-bg);  color: var(--color-warning); }
.badge-vip       { background: linear-gradient(135deg, var(--color-accent-600), var(--color-secondary-600)); color: #FFFFFF; font-weight: 700; }
.badge-sm        { font-size: var(--text-xs); }

/* ----- Icons ----- */

.icon {
    width: 1.25em;
    height: 1.25em;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex-shrink: 0;
}

/* ----- Grids ----- */

.grid {
    display: grid;
    gap: var(--space-5);
    grid-template-columns: 1fr;
}

@media (min-width: 40em) {
    .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 64em) {
    .grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ----- Utilities (intentional minimal set) ----- */

.text-center { text-align: center; }
.inline-flex { display: inline-flex; }

.bg-neutral-50 { background-color: var(--color-bg-section); }

.mt-2 { margin-block-start: var(--space-2); }
.mt-3 { margin-block-start: var(--space-3); }
.mt-4 { margin-block-start: var(--space-4); }
.mt-8 { margin-block-start: var(--space-8); }

/* ----- Animations ----- */

.animate-slide-up,
.animate-fade-in {
    opacity: 0;
    will-change: transform, opacity;
}

.animate-slide-up {
    transform: translateY(24px);
}

.is-visible {
    animation: slide-up 560ms cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
}

.animate-fade-in.is-visible {
    animation-name: fade-in;
}

@keyframes slide-up {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}

/* No-JS fallback: content stays visible when main.js never runs */
html:not(.js) .animate-slide-up,
html:not(.js) .animate-fade-in {
    opacity: 1;
    transform: none;
}

.stagger-1 { animation-delay: 60ms; }
.stagger-2 { animation-delay: 140ms; }
.stagger-3 { animation-delay: 220ms; }
.stagger-4 { animation-delay: 300ms; }

@media (prefers-reduced-motion: reduce) {
    .animate-slide-up,
    .animate-fade-in {
        opacity: 1;
        transform: none;
        animation: none !important;
    }
}