/* ==========================================================================
   DESAFIO TEAM DIAZ - DIPLOMA MATCHER DESIGN SYSTEM (VANILLA CSS)
   ========================================================================== */

:root {
    --font-primary: 'Plus Jakarta Sans', sans-serif;
    --font-display: 'Outfit', sans-serif;

    /* Sleek Sporty Dark Theme Colors */
    --bg-main: #07090e;
    --bg-surface: rgba(16, 21, 33, 0.6);
    --bg-surface-hover: rgba(25, 33, 52, 0.85);
    --border-color: rgba(255, 255, 255, 0.06);
    --border-color-glow: rgba(204, 255, 0, 0.25);
    
    /* Neon Sporty Accents */
    --clr-accent: #ccff00; /* Neon Lime Yellow */
    --clr-accent-rgb: 204, 255, 0;
    --clr-cyan: #00f0ff; /* Neon Cyan */
    --clr-cyan-rgb: 0, 240, 255;
    --clr-pink: #ff007f; /* Electric Pink */
    --clr-blue: #3b82f6; /* Sport Blue */
    --clr-dns: #475569; /* Slate Gray for DNS */

    /* Typography & Text */
    --txt-primary: #f8fafc;
    --txt-secondary: #94a3b8;
    --txt-muted: #64748b;

    /* Shadows & Glows */
    --glow-accent: 0 0 20px rgba(204, 255, 0, 0.35);
    --shadow-main: 0 10px 30px -10px rgba(0, 0, 0, 0.7);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Reset & Globals */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--bg-main);
    color: var(--txt-primary);
    font-family: var(--font-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    padding: 2.5rem 1.5rem;
}

/* Ambient Background Lights */
.glass-bg-glows {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.glow-sphere {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.15;
}

.sphere-1 {
    top: -10%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--clr-accent) 0%, rgba(204, 255, 0, 0) 70%);
}

.sphere-2 {
    bottom: -15%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--clr-cyan) 0%, rgba(0, 240, 255, 0) 70%);
}

/* App Container Layout */
.app-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

/* Premium Card Base */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    box-shadow: var(--shadow-main);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.card-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(204, 255, 0, 0.05) 0%, rgba(0, 240, 255, 0.02) 100%);
    pointer-events: none;
}

/* Header & Brand Styles */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.brand-logo {
    background: linear-gradient(135deg, var(--clr-accent) 0%, var(--clr-cyan) 100%);
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(204, 255, 0, 0.3);
}

.brand-icon {
    font-size: 1.6rem;
    color: #07090e;
    transform: skewX(-5deg);
}

.brand-text h1 {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.8rem;
    letter-spacing: -0.5px;
    line-height: 1.1;
    background: linear-gradient(to right, #ffffff, #e2e8f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-text .subtitle {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--clr-accent);
    text-transform: uppercase;
}

.stats-mini {
    display: flex;
    gap: 0.75rem;
}

.tag {
    padding: 0.4rem 0.8rem;
    border-radius: 9999px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.03);
    color: var(--txt-secondary);
}

.tag-location i { color: var(--clr-cyan); }
.tag-date i { color: var(--clr-accent); }

/* Dashboard Cards Grid */
.dashboard-section {
    padding: 1.5rem;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.25rem;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.03);
    transition: var(--transition-smooth);
}

.stat-card:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.06);
    transform: translateY(-2px);
}

.stat-icon {
    width: 3.25rem;
    height: 3.25rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}

.icon-cyan {
    background: rgba(0, 240, 255, 0.1);
    color: var(--clr-cyan);
    border: 1px solid rgba(0, 240, 255, 0.2);
}

.icon-yellow {
    background: rgba(204, 255, 0, 0.1);
    color: var(--clr-accent);
    border: 1px solid rgba(204, 255, 0, 0.2);
}

.icon-pink {
    background: rgba(255, 0, 127, 0.1);
    color: var(--clr-pink);
    border: 1px solid rgba(255, 0, 127, 0.2);
}

.icon-blue {
    background: rgba(59, 130, 246, 0.1);
    color: var(--clr-blue);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--txt-primary);
}

.stat-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--txt-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 2px;
}

/* Controls Bar Row */
.controls-row {
    display: block;
}

.search-filters {
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.search-wrapper {
    flex: 1;
    position: relative;
}

.search-icon {
    position: absolute;
    left: 1.1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--txt-muted);
    font-size: 1rem;
    transition: var(--transition-smooth);
}

.search-wrapper input {
    width: 100%;
    padding: 0.8rem 1rem 0.8rem 2.8rem;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    color: var(--txt-primary);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    transition: var(--transition-smooth);
}

.search-wrapper input:focus {
    outline: none;
    border-color: var(--clr-accent);
    box-shadow: 0 0 10px rgba(204, 255, 0, 0.1);
    background: rgba(0, 0, 0, 0.4);
}

.search-wrapper input:focus + .search-icon {
    color: var(--clr-accent);
}

.filter-group {
    display: flex;
    gap: 0.5rem;
    border-left: 1px solid rgba(255, 255, 255, 0.08);
    padding-left: 1.5rem;
}

.filter-btn {
    background: transparent;
    border: 1px solid transparent;
    color: var(--txt-secondary);
    padding: 0.6rem 1.1rem;
    border-radius: 10px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    font-family: var(--font-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-smooth);
}

.filter-btn:hover {
    color: var(--txt-primary);
    background: rgba(255, 255, 255, 0.03);
}

.filter-btn.active {
    background: rgba(204, 255, 0, 0.1);
    border-color: var(--clr-accent);
    color: var(--clr-accent);
    box-shadow: 0 2px 10px rgba(204, 255, 0, 0.05);
}

.global-actions {
    display: flex;
    gap: 0.75rem;
}

/* Buttons System */
.action-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.8rem 1.5rem;
    border-radius: 12px;
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition-smooth);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--clr-accent) 0%, #aee600 100%);
    color: #07090e;
    box-shadow: 0 4px 20px rgba(204, 255, 0, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(204, 255, 0, 0.35);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--txt-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.12);
    transform: translateY(-2px);
}

.hover-effect {
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.2) 50%, rgba(255,255,255,0) 100%);
    transform: skewX(-25deg);
    transition: none;
}

.btn-primary:hover .hover-effect {
    left: 150%;
    transition: all 0.75s ease-in-out;
}

/* Participants List Layout */
.list-section {
    padding: 0;
}

.table-container {
    overflow-x: auto;
}

.participants-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.participants-table th {
    background: rgba(0, 0, 0, 0.15);
    padding: 1.1rem 1.5rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--txt-secondary);
    border-bottom: 1px solid var(--border-color);
}

.participants-table td {
    padding: 1rem 1.5rem;
    font-size: 0.9rem;
    color: var(--txt-primary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.02);
    vertical-align: middle;
    transition: var(--transition-smooth);
}

.participants-table tbody tr {
    transition: var(--transition-smooth);
}

.participants-table tbody tr:hover td {
    background: rgba(255, 255, 255, 0.015);
}

/* Custom Table Row Designs */
.row-dns td {
    color: var(--txt-muted) !important;
}

.td-dorsal {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--clr-cyan);
}

.row-dns .td-dorsal {
    color: var(--clr-dns);
}

.runner-name {
    font-weight: 600;
    display: block;
}

.runner-city {
    font-size: 0.75rem;
    color: var(--txt-secondary);
    display: block;
    margin-top: 2px;
}

.cat-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.6rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
}

.cat-damas {
    background: rgba(255, 0, 127, 0.1);
    color: #ff3b9a;
    border: 1px solid rgba(255, 0, 127, 0.15);
}

.cat-hombres {
    background: rgba(59, 130, 246, 0.1);
    color: #60a5fa;
    border: 1px solid rgba(59, 130, 246, 0.15);
}

.cat-dns {
    background: rgba(71, 85, 105, 0.1);
    color: #94a3b8;
    border: 1px solid rgba(71, 85, 105, 0.15);
}

.position-badge {
    font-family: var(--font-display);
    font-weight: 700;
}

.td-time {
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.td-pace {
    font-family: var(--font-primary);
    font-size: 0.85rem;
    color: var(--txt-secondary);
}

/* Actions Column Buttons */
.row-actions {
    display: flex;
    gap: 0.5rem;
}

.action-icon-btn {
    width: 2.2rem;
    height: 2.2rem;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.02);
    color: var(--txt-secondary);
    transition: var(--transition-smooth);
}

.action-icon-btn:hover {
    color: var(--txt-primary);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.action-icon-btn.btn-view:hover {
    color: var(--clr-cyan);
    border-color: rgba(0, 240, 255, 0.3);
    box-shadow: 0 0 8px rgba(0, 240, 255, 0.1);
}

.action-icon-btn.btn-dl:hover {
    color: var(--clr-accent);
    border-color: var(--border-color-glow);
    box-shadow: 0 0 8px rgba(204, 255, 0, 0.1);
}

.btn-disabled {
    opacity: 0.25;
    cursor: not-allowed !important;
    pointer-events: none;
}

/* Loading & Empty States */
.loading-state {
    text-align: center;
    padding: 4rem 2rem !important;
}

.spinner {
    width: 2.5rem;
    height: 2.5rem;
    border: 3px solid rgba(255, 255, 255, 0.05);
    border-top: 3px solid var(--clr-accent);
    border-radius: 50%;
    margin: 0 auto 1rem;
    animation: spin 1s linear infinite;
}

.table-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--txt-secondary);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Premium Glassmorphic Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-backdrop {
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(3, 4, 7, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.modal-content {
    background: rgba(16, 21, 33, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.08);
    width: 90%;
    max-width: 820px;
    border-radius: 24px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    max-height: 90vh;
    transform: translateY(20px);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    overflow: hidden;
}

.modal.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.runner-info-header h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
}

.runner-tags {
    display: flex;
    gap: 0.5rem;
    margin-top: 4px;
}

.modal-tag {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
}

.tag-dorsal {
    background: rgba(0, 240, 255, 0.1);
    color: var(--clr-cyan);
}

.tag-pos {
    background: rgba(204, 255, 0, 0.1);
    color: var(--clr-accent);
}

.tag-time {
    background: rgba(255, 255, 255, 0.05);
    color: var(--txt-primary);
}

.close-btn {
    background: transparent;
    border: none;
    color: var(--txt-secondary);
    font-size: 1.4rem;
    cursor: pointer;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.close-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--txt-primary);
}

.modal-body {
    padding: 1.5rem;
    flex: 1;
    overflow-y: auto;
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    justify-content: center;
    align-items: center;
}

.pdf-viewer-container {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    min-height: 400px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.03);
    overflow: hidden;
}

.viewer-loader {
    position: absolute;
    text-align: center;
}

#pdf-canvas {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    display: none;
}

.modal-footer {
    padding: 1.1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

.modal-btn {
    padding: 0.6rem 1.2rem;
    border-radius: 10px;
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.85rem;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition-smooth);
    border: none;
}

/* Toast Notifications */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: rgba(16, 21, 33, 0.95);
    border: 1px solid var(--clr-accent);
    color: var(--txt-primary);
    padding: 0.9rem 1.5rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 2000;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast-icon {
    color: var(--clr-accent);
    font-size: 1.2rem;
}

/* Custom Scrollbar for Premium Feel */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-main);
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.18);
}

/* Responsive Rules */
@media (max-width: 900px) {
    .controls-row {
        grid-template-columns: 1fr;
    }
    
    .search-filters {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-group {
        border-left: none;
        padding-left: 0;
        padding-top: 1rem;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        justify-content: space-between;
    }
    
    .filter-btn {
        flex: 1;
        justify-content: center;
    }
}

@media (max-width: 600px) {
    body {
        padding: 1.5rem 0.75rem;
    }
    
    .app-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .global-actions {
        flex-direction: column;
    }
}