/* =====================================================================
   THEME — shared design tokens & utilities for УСН В. Жанна
   Brand color is teal (#00b5a8, already used on the auth/login screens).
   Load this BEFORE any page-specific stylesheet so pages can still
   override individual rules where needed.
   ===================================================================== */

:root {
    /* Brand */
    --brand-primary: #00b5a8;
    --brand-primary-dark: #00897e;
    --brand-primary-light: #4dd0c7;
    --brand-primary-tint: #e3faf8;
    --brand-accent: #ff8a5c;

    /* Neutrals */
    --ink: #1b1f22;
    --ink-soft: #4b555b;
    --surface: #ffffff;
    --surface-muted: #f5f8f8;
    --border-soft: #e2e8e7;

    /* Elevation */
    --shadow-sm: 0 2px 10px rgba(15, 40, 38, 0.06);
    --shadow-md: 0 10px 28px rgba(15, 40, 38, 0.10);
    --shadow-lg: 0 20px 48px rgba(15, 40, 38, 0.16);
    --shadow-brand: 0 10px 24px rgba(0, 181, 168, 0.28);

    /* Motion */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --t-fast: 0.18s;
    --t-mid: 0.32s;

    /* Radius */
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 22px;
}

/* Bootstrap primary → brand teal, site-wide */
.btn-primary {
    background-color: var(--brand-primary) !important;
    border-color: var(--brand-primary) !important;
    transition: background-color var(--t-fast) var(--ease-out), transform var(--t-fast) var(--ease-out), box-shadow var(--t-fast) var(--ease-out) !important;
}
.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--brand-primary-dark) !important;
    border-color: var(--brand-primary-dark) !important;
    transform: translateY(-2px);
    box-shadow: var(--shadow-brand);
}
.btn-primary:active { transform: translateY(0); }

.text-primary { color: var(--brand-primary) !important; }
.text-success { color: var(--brand-primary-dark) !important; }
.bg-primary { background-color: var(--brand-primary) !important; }

a { transition: color var(--t-fast) var(--ease-out); }

/* Buttons & links get a calm, consistent hover response everywhere */
.btn {
    transition: transform var(--t-fast) var(--ease-out), box-shadow var(--t-fast) var(--ease-out), background-color var(--t-fast) var(--ease-out), border-color var(--t-fast) var(--ease-out);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

/* Cards: one consistent lift-on-hover instead of many competing effects */
.card {
    transition: transform var(--t-mid) var(--ease-out), box-shadow var(--t-mid) var(--ease-out);
}
.hover-lift:hover,
.card.hover-lift:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

/* =====================================================================
   Scroll-reveal utility — pairs with assets/js/reveal.js
   Usage: add data-reveal to any element. Optional data-reveal-delay="80"
   ===================================================================== */
[data-reveal] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
[data-reveal].is-revealed {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    [data-reveal] {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Skeleton loading shimmer, for async content (product grids, images) */
.skeleton {
    position: relative;
    overflow: hidden;
    background: var(--surface-muted);
}
.skeleton::after {
    content: "";
    position: absolute;
    inset: 0;
    transform: translateX(-100%);
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.6), transparent);
    animation: skeleton-shimmer 1.4s infinite;
}
@keyframes skeleton-shimmer {
    100% { transform: translateX(100%); }
}

/* Small utility for a subtle fade-in on page load (body wrapper) */
@keyframes theme-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}
.theme-page-enter {
    animation: theme-fade-in 0.35s var(--ease-out) both;
}