/* =========================================
   PIXEL PERFECT · Mejoras generales de UI/UX
   ========================================= */

/* =============================================
   GLOBAL FIXES: overflow, box-model, font
   ============================================= */
html, body {
    overflow-x: hidden;
    width: 100%;
    position: relative;
}

body {
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

/* Heading anti-aliasing */
h1, h2, h3, h4, h5, h6 {
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    letter-spacing: -0.01em;
}

/* =============================================
   FIX: img shimmer animation conflict
   — Remove animation from ALL images; only apply
     shimmer to skeleton placeholders.
   ============================================= */
img {
    background: none !important;
    animation: none !important;
    display: block;
}

/* Skeleton placeholders only */
.skeleton, .skel-line {
    background: linear-gradient(
        90deg,
        var(--bar-bg) 0%,
        color-mix(in srgb, var(--bar-bg) 80%, #fff) 50%,
        var(--bar-bg) 100%
    ) !important;
    background-size: 200% 100% !important;
    animation: shimmer 1.5s infinite !important;
    border-radius: 6px;
}

@keyframes shimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* =============================================
   FIX: Hero section — allow carousel z-index
   ============================================= */
.hero {
    position: relative;
    overflow: visible;
}

.hero-carousel {
    position: relative;
    width: 100%;
    overflow: hidden;
    min-height: 520px;
}

/* =============================================
   FIX: Section scroll margin
   ============================================= */
.section {
    scroll-margin-top: 90px;
}

/* =============================================
   FIX: card-elevation utility (used in slider slides)
   ============================================= */
.card-elevation {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    box-shadow: 0 20px 48px rgba(0,0,0,0.08);
}

/* =============================================
   FIX: btn-secondary style (missing definition)
   ============================================= */
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 14px;
    padding: 13px 22px;
    border-radius: 12px;
    text-decoration: none;
    cursor: pointer;
    background: linear-gradient(135deg, var(--co-blue), #1d4ed8);
    color: #fff;
    border: none;
    box-shadow: 0 8px 20px rgba(0,56,147,0.28);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    position: relative;
    overflow: hidden;
    isolation: isolate;
}
.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(0,56,147,0.38);
}

/* =============================================
   FIX: CTA buttons ripple effect
   ============================================= */
.btn-primary,
.btn-ghost,
.btn-secondary {
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.btn-primary::after,
.btn-ghost::after,
.btn-secondary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(
        circle at center,
        rgba(255,255,255,0.2) 0%,
        transparent 70%
    );
    opacity: 0;
    transform: scale(0.5);
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
}

.btn-primary:hover::after,
.btn-ghost:hover::after,
.btn-secondary:hover::after {
    opacity: 1;
    transform: scale(1.5);
}

/* =============================================
   FIX: Cards will-change (GPU compositing)
   ============================================= */
.candidate-card,
.feature-card,
.position-card,
.channel-card,
.candidate-visual-card,
.ai-stat-card,
.kpi {
    will-change: transform, box-shadow;
}

/* Smooth scroll para toda la página */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

/* Focus visible mejorado para accesibilidad */
:focus-visible {
    outline: 3px solid var(--highlight);
    outline-offset: 3px;
    border-radius: 6px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid var(--highlight);
    outline-offset: 3px;
    box-shadow: 0 0 0 6px rgba(59, 130, 246, 0.2);
}

/* Selection color personalizado */
::selection {
    background: rgba(59, 130, 246, 0.3);
    color: var(--primary);
}

body.dark ::selection {
    background: rgba(59, 130, 246, 0.4);
    color: #f1f5f9;
}

/* Imágenes con lazy loading visual */
img {
    background: linear-gradient(
        90deg,
        var(--bar-bg) 0%,
        color-mix(in srgb, var(--bar-bg) 80%, #fff) 50%,
        var(--bar-bg) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

img.loaded {
    background: none;
    animation: none;
}

/* Tablas con mejor styling */
table {
    border-collapse: separate;
    border-spacing: 0;
    overflow: hidden;
}

th:first-child {
    border-top-left-radius: 12px;
}

th:last-child {
    border-top-right-radius: 12px;
}

/* Inputs con mejor styling */
input[type="text"],
input[type="email"],
input[type="search"],
textarea {
    transition: all 0.2s ease;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="search"]:focus,
textarea:focus {
    transform: translateY(-1px);
    box-shadow: 
        0 4px 12px rgba(59,130,246,0.15),
        0 0 0 3px rgba(59,130,246,0.1);
}

/* Divider mejorado */
.divider {
    height: 1px;
    background: linear-gradient(
        to right,
        transparent 0%,
        var(--divider) 20%,
        var(--divider) 80%,
        transparent 100%
    );
    margin: 32px 0;
}

/* Badges y tags */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary {
    background: rgba(59,130,246,0.15);
    color: var(--highlight);
    border: 1px solid rgba(59,130,246,0.3);
}

.badge-success {
    background: rgba(16,185,129,0.15);
    color: var(--success);
    border: 1px solid rgba(16,185,129,0.3);
}

.badge-warning {
    background: rgba(245,158,11,0.15);
    color: var(--warning);
    border: 1px solid rgba(245,158,11,0.3);
}

.badge-danger {
    background: rgba(239,68,68,0.15);
    color: var(--danger);
    border: 1px solid rgba(239,68,68,0.3);
}

/* Tooltips nativos mejorados */
[title] {
    position: relative;
}

/* Progress bars animadas */
.progress-bar {
    height: 8px;
    background: var(--bar-bg);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.progress-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        var(--co-yellow) 0%,
        var(--co-blue) 50%,
        var(--co-red) 100%
    );
    transform: translateX(-100%);
    animation: progress-shimmer 2s infinite;
}

@keyframes progress-shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Avatar images con fallback */
.avatar,
.candidate-avatar,
.result-avatar {
    position: relative;
    overflow: hidden;
}

.avatar::before,
.candidate-avatar::before,
.result-avatar::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(255,255,255,0.1) 0%,
        transparent 100%
    );
    pointer-events: none;
}

/* Loading states */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0.5);
    backdrop-filter: blur(2px);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Error states */
.error-state {
    background: rgba(239,68,68,0.08);
    border: 1px solid rgba(239,68,68,0.3);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    color: var(--danger);
}

/* Success states */
.success-state {
    background: rgba(16,185,129,0.08);
    border: 1px solid rgba(16,185,129,0.3);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    color: var(--success);
}

/* Animaciones de entrada */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section,
.feature-card,
.candidate-card {
    animation: fadeInUp 0.6s ease-out;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Print styles */
@media print {
    .navbar,
    .chat-fab,
    .chat-panel,
    .back-to-top,
    .refresh-btn,
    .theme-toggle {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
    
    a {
        text-decoration: underline;
    }
}