/* ============================================================
   VnY SITE UI — primitivas reutilizables del frontend público.
   Carga DESPUÉS de site-tokens.css y DESPUÉS de styles.css.
   Sobrescribe puntos críticos del header sin tocar styles.css.
   ============================================================ */


/* ============================================================
   QUICK WINS - overrides al CSS antiguo
   ============================================================ */

/* Body: quitar padding-top: 140px del fixed header.
   Lo conseguimos haciendo el header sticky (en lugar de fixed). */
body:not(.admin-body) {
    padding-top: 0 !important;
    margin: 0;
}

/* Header sticky (no fixed) - simplifica responsive y elimina overlaps */
body:not(.admin-body) header.main-header {
    position: sticky !important;
    top: 0 !important;
    left: auto !important;
    width: 100% !important;
    z-index: var(--z-header) !important;
}

@media (max-width: 768px) {
    body:not(.admin-body) header.main-header {
        position: sticky !important;
        top: 0 !important;
    }
    body:not(.admin-body) {
        padding-top: 0 !important;
    }
}


/* ============================================================
   BOTONES (.site-btn) - sistema unificado
   ============================================================ */

.site-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 10px 20px;
    height: 40px;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: var(--fs-sm);
    font-weight: var(--fw-bold);
    text-decoration: none;
    cursor: pointer;
    border: 1px solid transparent;
    transition: background var(--dur-fast) var(--ease),
                border-color var(--dur-fast) var(--ease),
                color var(--dur-fast) var(--ease),
                filter var(--dur-fast) var(--ease);
    white-space: nowrap;
    line-height: 1;
    box-sizing: border-box;
    background: none;
    background-image: none;
}
.site-btn i { font-size: 13px; }

/* Primary: sólido accent */
.site-btn-primary {
    background: var(--site-accent);
    color: var(--site-accent-text);
    border-color: var(--site-accent);
}
.site-btn-primary:hover { filter: brightness(1.15); }

/* Outline: borde + texto accent */
.site-btn-outline {
    background: transparent;
    color: var(--site-accent);
    border-color: var(--site-accent-mid);
}
.site-btn-outline:hover {
    background: var(--site-accent-soft);
    border-color: var(--site-accent);
}

/* Ghost: muy sutil */
.site-btn-ghost {
    background: transparent;
    color: var(--site-text-2);
    border-color: var(--site-border);
}
.site-btn-ghost:hover {
    background: var(--site-surface);
    border-color: var(--site-border-2);
    color: var(--site-text);
}

/* Danger */
.site-btn-danger {
    background: transparent;
    color: var(--site-red);
    border-color: rgba(255,107,107,.35);
}
.site-btn-danger:hover {
    background: rgba(255,107,107,.1);
    border-color: var(--site-red);
}

/* Tamaños */
.site-btn-sm  { height: 32px; padding: 6px 14px; font-size: var(--fs-xs); }
.site-btn-lg  { height: 48px; padding: 12px 28px; font-size: var(--fs-md); }
.site-btn-xl  { height: 56px; padding: 16px 32px; font-size: var(--fs-lg); }
.site-btn-block { width: 100%; }

.site-btn[disabled],
.site-btn:disabled { opacity: .5; cursor: not-allowed; }


/* ============================================================
   CARDS (.site-card)
   ============================================================ */

.site-card {
    background: var(--site-surface);
    border: 1px solid var(--site-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}
.site-card-hover {
    transition: border-color var(--dur-fast) var(--ease),
                background var(--dur-fast) var(--ease),
                transform var(--dur-fast) var(--ease);
}
.site-card-hover:hover {
    background: var(--site-surface-2);
    border-color: var(--site-accent-mid);
    transform: translateY(-2px);
}
.site-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--site-border);
}


/* ============================================================
   BADGES / CHIPS
   ============================================================ */

.site-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 3px 9px;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 10px;
    font-weight: var(--fw-bold);
    text-transform: uppercase;
    letter-spacing: .6px;
    border: 1px solid;
    line-height: 1.4;
}
.site-badge-accent { color: var(--site-accent); background: var(--site-accent-soft); border-color: var(--site-accent-mid); }
.site-badge-violet { color: var(--site-violet); background: rgba(var(--site-violet-rgb),.1); border-color: rgba(var(--site-violet-rgb),.3); }
.site-badge-green  { color: var(--site-green);  background: rgba(46,204,113,.1);          border-color: rgba(46,204,113,.3); }
.site-badge-yellow { color: var(--site-yellow); background: rgba(255,217,61,.1);          border-color: rgba(255,217,61,.3); }
.site-badge-red    { color: var(--site-red);    background: rgba(255,107,107,.1);         border-color: rgba(255,107,107,.3); }

.site-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 5px 12px;
    border-radius: var(--radius-pill);
    background: var(--site-surface-2);
    border: 1px solid var(--site-border);
    color: var(--site-text-2);
    font-size: var(--fs-xs);
    font-weight: 600;
    text-decoration: none;
    transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}
.site-chip:hover {
    background: var(--site-surface-3);
    border-color: var(--site-border-2);
}
.site-chip-accent {
    color: var(--site-accent);
    border-color: var(--site-accent-mid);
    background: var(--site-accent-soft);
}
.site-chip-accent:hover {
    background: var(--site-accent-soft);
    border-color: var(--site-accent);
}


/* ============================================================
   FORM FIELDS
   ============================================================ */

.site-form-field { display: flex; flex-direction: column; gap: var(--space-xs); margin-bottom: var(--space-md); }
.site-form-field label {
    font-size: var(--fs-xs);
    color: var(--site-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: var(--fw-bold);
}
.site-input,
.site-textarea,
.site-select {
    width: 100%;
    padding: 11px 14px;
    border-radius: var(--radius-md);
    border: 1px solid var(--site-border);
    background: rgba(0,0,0,.3);
    color: var(--site-text);
    font-size: var(--fs-md);
    font-family: var(--font-body);
    outline: none;
    transition: border-color var(--dur-fast) var(--ease),
                box-shadow var(--dur-fast) var(--ease);
    box-sizing: border-box;
}
.site-input:focus,
.site-textarea:focus,
.site-select:focus {
    border-color: var(--site-accent);
    box-shadow: 0 0 0 2px var(--site-accent-soft);
}
.site-textarea { resize: vertical; min-height: 110px; }
.site-select { cursor: pointer; appearance: none; -webkit-appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 12 12'><path fill='%23888' d='M2 4l4 4 4-4z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}


/* ============================================================
   SECTION TITLES (h2 style across sections)
   ============================================================ */

.site-section-title {
    font-family: var(--font-display);
    font-size: var(--fs-xl);
    font-weight: var(--fw-bold);
    color: var(--site-text);
    margin: 0 0 var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    letter-spacing: 1px;
    text-transform: uppercase;
}
.site-section-title i { color: var(--site-accent); font-size: var(--fs-lg); }
.site-section-title-sm {
    font-family: var(--font-display);
    font-size: var(--fs-sm);
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--site-text-muted);
    margin: 0 0 var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--site-border);
}


/* ============================================================
   EMPTY STATE
   ============================================================ */

.site-empty {
    text-align: center;
    padding: var(--space-2xl) var(--space-md);
    color: var(--site-text-muted);
    background: var(--site-surface);
    border: 1px dashed var(--site-border-2);
    border-radius: var(--radius-lg);
}
.site-empty i {
    font-size: 36px;
    display: block;
    margin-bottom: var(--space-md);
    color: var(--site-text-faded);
}


/* ============================================================
   LOADING / SKELETON
   ============================================================ */

@keyframes site-skeleton-pulse {
    0%   { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}
.site-skeleton {
    background: linear-gradient(
        90deg,
        var(--site-surface) 0%,
        var(--site-surface-2) 50%,
        var(--site-surface) 100%
    );
    background-size: 200% 100%;
    animation: site-skeleton-pulse 1.4s ease-in-out infinite;
    border-radius: var(--radius-md);
}
.site-spinner {
    display: inline-block;
    width: 18px; height: 18px;
    border: 2px solid rgba(var(--site-accent-rgb), .15);
    border-top-color: var(--site-accent);
    border-radius: 50%;
    animation: site-spin .8s linear infinite;
}
@keyframes site-spin { to { transform: rotate(360deg); } }


/* ============================================================
   BACK TO TOP - botón flotante (Quick win)
   ============================================================ */

.site-back-top {
    position: fixed;
    right: 20px;
    bottom: 20px;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--site-accent);
    color: var(--site-accent-text);
    border: none;
    cursor: pointer;
    font-size: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transform: translateY(20px);
    transition: opacity var(--dur-base) var(--ease),
                transform var(--dur-base) var(--ease),
                filter var(--dur-fast) var(--ease);
    z-index: var(--z-overlay);
    box-shadow: var(--shadow-md), var(--glow-accent);
}
.site-back-top.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}
.site-back-top:hover { filter: brightness(1.15); }
@media (max-width: 768px) {
    .site-back-top { right: 14px; bottom: 14px; width: 44px; height: 44px; }
}


/* ============================================================
   TOAST notifications (.site-toast)
   ============================================================ */

.site-toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    min-width: 240px;
    max-width: 360px;
    padding: 12px 18px;
    border-radius: var(--radius-md);
    background: var(--site-accent);
    color: var(--site-accent-text);
    font-family: var(--font-body);
    font-size: var(--fs-sm);
    font-weight: var(--fw-bold);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    z-index: var(--z-toast);
    box-shadow: var(--shadow-md);
    transform: translateY(80px);
    opacity: 0;
    transition: transform var(--dur-base) var(--ease),
                opacity var(--dur-base) var(--ease);
}
.site-toast.show {
    transform: translateY(0);
    opacity: 1;
}
.site-toast-success { background: var(--site-green); color: #000; }
.site-toast-error   { background: var(--site-red);   color: #fff; }
.site-toast-info    { background: var(--site-accent); color: var(--site-accent-text); }
.site-toast i { font-size: 14px; }
@media (max-width: 768px) {
    .site-toast {
        left: 14px;
        right: 14px;
        bottom: 14px;
        max-width: none;
    }
}


/* ============================================================
   UTILITY CLASSES
   ============================================================ */

.site-flex      { display: flex; }
.site-flex-col  { display: flex; flex-direction: column; }
.site-flex-wrap { display: flex; flex-wrap: wrap; }
.site-grid      { display: grid; }
.site-gap-xs { gap: var(--space-xs); }
.site-gap-sm { gap: var(--space-sm); }
.site-gap-md { gap: var(--space-md); }
.site-gap-lg { gap: var(--space-lg); }
.site-items-center { align-items: center; }
.site-justify-between { justify-content: space-between; }
.site-text-muted { color: var(--site-text-muted); }
.site-text-faded { color: var(--site-text-faded); }
.site-text-accent { color: var(--site-accent); }
.site-text-center { text-align: center; }
.site-truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.site-hidden { display: none !important; }
.site-mt-md { margin-top: var(--space-md); }
.site-mt-lg { margin-top: var(--space-lg); }
.site-mb-md { margin-bottom: var(--space-md); }
.site-mb-lg { margin-bottom: var(--space-lg); }