/**
 * Otecincloud - Estilos principales
 * Diseño oscuro premium, corporativo
 * Paleta: Azul petróleo/navy + acentos naranjos
 */

/* ============================================
   VARIABLES / DESIGN TOKENS
   ============================================ */
:root {
    /* Colores primarios */
    --color-bg-deep:       #060a14;
    --color-bg-primary:    #0a0f1c;
    --color-bg-secondary:  #0f1629;
    --color-bg-tertiary:   #141c32;
    --color-bg-elevated:   #1a2340;
    --color-bg-hover:      #1e2a4a;

    /* Sidebar */
    --sidebar-bg:          #080d18;
    --sidebar-width:       260px;
    --sidebar-collapsed:   68px;

    /* Azul petróleo / Navy */
    --color-primary:       #1a5276;
    --color-primary-light: #1e6f8e;
    --color-primary-dark:  #0e3a55;
    --color-primary-glow:  rgba(26, 82, 118, 0.4);

    /* Acento naranja */
    --color-accent:        #e67e22;
    --color-accent-light:  #f39c12;
    --color-accent-dark:   #d35400;
    --color-accent-glow:   rgba(230, 126, 34, 0.35);

    /* Textos */
    --color-text-primary:  #ecf0f1;
    --color-text-secondary:#95a5b8;
    --color-text-muted:    #5a6a7e;
    --color-text-accent:   #e67e22;

    /* Semánticos */
    --color-success:       #2ecc71;
    --color-warning:       #f39c12;
    --color-danger:        #e74c3c;
    --color-info:          #3498db;

    /* Bordes */
    --border-color:        rgba(255, 255, 255, 0.06);
    --border-color-light:  rgba(255, 255, 255, 0.1);
    --border-color-accent: rgba(230, 126, 34, 0.3);

    /* Sombras */
    --shadow-sm:           0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md:           0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg:           0 8px 30px rgba(0, 0, 0, 0.5);
    --shadow-glow:         0 0 20px var(--color-primary-glow);
    --shadow-accent:       0 0 20px var(--color-accent-glow);

    /* Tipografía */
    --font-family:         'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs:        0.75rem;
    --font-size-sm:        0.8125rem;
    --font-size-base:      0.875rem;
    --font-size-md:        1rem;
    --font-size-lg:        1.25rem;
    --font-size-xl:        1.5rem;
    --font-size-2xl:       2rem;

    /* Espaciado */
    --space-xs:            0.25rem;
    --space-sm:            0.5rem;
    --space-md:            1rem;
    --space-lg:            1.5rem;
    --space-xl:            2rem;
    --space-2xl:           3rem;

    /* Radios */
    --radius-sm:           6px;
    --radius-md:           10px;
    --radius-lg:           14px;
    --radius-xl:           20px;
    --radius-full:         9999px;

    /* Transiciones */
    --transition-fast:     0.15s ease;
    --transition-base:     0.25s ease;
    --transition-slow:     0.4s cubic-bezier(0.4, 0, 0.2, 1);

    /* Topbar */
    --topbar-height:       64px;
}

/* ============================================
   RESET & BASE
   ============================================ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

a {
    color: var(--color-primary-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text-primary);
}

img {
    max-width: 100%;
    height: auto;
}

/* ============================================
   SIDEBAR
   ============================================ */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: width var(--transition-slow), transform var(--transition-slow);
    overflow: hidden;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg) var(--space-md);
    border-bottom: 1px solid var(--border-color);
    min-height: var(--topbar-height);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    white-space: nowrap;
    overflow: hidden;
}

.logo-icon {
    font-size: 1.5rem;
    color: var(--color-accent);
    flex-shrink: 0;
    filter: drop-shadow(0 0 8px var(--color-accent-glow));
    animation: logoPulse 3s ease-in-out infinite;
}

@keyframes logoPulse {
    0%, 100% { filter: drop-shadow(0 0 8px var(--color-accent-glow)); }
    50% { filter: drop-shadow(0 0 16px var(--color-accent-glow)); }
}

.logo-text {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

.logo-accent {
    color: var(--color-accent);
}

.sidebar-toggle {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: 6px 8px;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-md);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.sidebar-toggle:hover {
    background: var(--color-bg-hover);
    color: var(--color-accent);
    border-color: var(--border-color-accent);
}

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--space-md) 0;
    scrollbar-width: thin;
    scrollbar-color: var(--color-bg-elevated) transparent;
}

.sidebar-nav::-webkit-scrollbar {
    width: 4px;
}

.sidebar-nav::-webkit-scrollbar-thumb {
    background: var(--color-bg-elevated);
    border-radius: var(--radius-full);
}

.nav-section {
    margin-bottom: var(--space-md);
}

.nav-section-title {
    display: block;
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    white-space: nowrap;
    overflow: hidden;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 10px var(--space-lg);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
    position: relative;
    white-space: nowrap;
    overflow: hidden;
}

.nav-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: var(--color-accent);
    border-radius: 0 3px 3px 0;
    transition: height var(--transition-base);
}

.nav-item:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.03);
}

.nav-item:hover::before {
    height: 60%;
}

.nav-item.active {
    color: var(--color-accent);
    background: rgba(230, 126, 34, 0.08);
}

.nav-item.active::before {
    height: 70%;
    box-shadow: 0 0 10px var(--color-accent-glow);
}

.nav-item.disabled {
    opacity: 0.45;
    pointer-events: none;
}

.nav-icon {
    font-size: var(--font-size-md);
    flex-shrink: 0;
    width: 24px;
    text-align: center;
}

.nav-label {
    overflow: hidden;
    text-overflow: ellipsis;
}

.nav-badge {
    margin-left: auto;
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    background: rgba(230, 126, 34, 0.15);
    color: var(--color-accent);
    border: 1px solid rgba(230, 126, 34, 0.2);
    flex-shrink: 0;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--border-color);
}

.sidebar-version {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-align: center;
}

/* Sidebar collapsed state */
.sidebar.collapsed {
    width: var(--sidebar-collapsed);
}

.sidebar.collapsed .logo-text,
.sidebar.collapsed .nav-section-title,
.sidebar.collapsed .nav-label,
.sidebar.collapsed .nav-badge,
.sidebar.collapsed .sidebar-version {
    opacity: 0;
    visibility: hidden;
}

.sidebar.collapsed .sidebar-header {
    justify-content: center;
    padding: var(--space-lg) var(--space-sm);
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: 10px var(--space-sm);
}

.sidebar.collapsed .sidebar-toggle {
    display: none;
}

/* ============================================
   MAIN WRAPPER
   ============================================ */
.main-wrapper {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left var(--transition-slow);
}

.sidebar.collapsed ~ .main-wrapper {
    margin-left: var(--sidebar-collapsed);
}

/* ============================================
   TOPBAR
   ============================================ */
.topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--topbar-height);
    padding: 0 var(--space-xl);
    background: rgba(10, 15, 28, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.mobile-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border-color);
    color: var(--color-text-secondary);
    font-size: 1.2rem;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.mobile-toggle:hover {
    color: var(--color-accent);
    border-color: var(--border-color-accent);
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-sm);
}

.breadcrumb-item {
    color: var(--color-text-muted);
}

.breadcrumb-item.current {
    color: var(--color-text-primary);
    font-weight: 500;
}

.breadcrumb-separator {
    color: var(--color-text-muted);
    opacity: 0.5;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.topbar-search {
    position: relative;
}

.search-input {
    width: 220px;
    padding: 8px 12px 8px 36px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    outline: none;
    transition: all var(--transition-fast);
}

.search-input::placeholder {
    color: var(--color-text-muted);
}

.search-input:focus {
    border-color: var(--color-primary-light);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
    width: 280px;
}

.search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    pointer-events: none;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.topbar-btn {
    position: relative;
    background: none;
    border: 1px solid var(--border-color);
    color: var(--color-text-secondary);
    padding: 8px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: var(--font-size-md);
    transition: all var(--transition-fast);
}

.topbar-btn:hover {
    color: var(--color-accent);
    border-color: var(--border-color-accent);
    background: rgba(230, 126, 34, 0.05);
}

.notification-dot {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 7px;
    height: 7px;
    background: var(--color-accent);
    border-radius: 50%;
    box-shadow: 0 0 6px var(--color-accent-glow);
    animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.3); }
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: #fff;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

.user-avatar:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-accent);
    transform: scale(1.05);
}

/* ============================================
   CONTENT
   ============================================ */
.content {
    flex: 1;
    padding: var(--space-xl);
    max-width: 1400px;
    width: 100%;
}

/* ============================================
   PAGE HEADER
   ============================================ */
.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--border-color);
    gap: var(--space-md);
    flex-wrap: wrap;
}

.page-title {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.03em;
}

.page-subtitle {
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
    margin-top: var(--space-xs);
    max-width: 600px;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-active {
    background: rgba(46, 204, 113, 0.1);
    color: var(--color-success);
    border: 1px solid rgba(46, 204, 113, 0.25);
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
    box-shadow: 0 0 8px currentColor;
    animation: dotPulse 2s ease-in-out infinite;
}

/* ============================================
   STATS GRID
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.stat-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-primary-light), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.stat-card:hover::before {
    opacity: 1;
}

.stat-icon {
    font-size: 1.8rem;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: rgba(26, 82, 118, 0.15);
    flex-shrink: 0;
}

.stat-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
    min-width: 0;
}

.stat-value {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text-primary);
    line-height: 1.2;
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.stat-trend {
    font-size: var(--font-size-sm);
    font-weight: 600;
    flex-shrink: 0;
}

.stat-neutral { color: var(--color-text-muted); }
.stat-up { color: var(--color-success); }
.stat-down { color: var(--color-danger); }

/* ============================================
   SECTIONS
   ============================================ */
.section {
    margin-bottom: var(--space-2xl);
}

.section-header {
    margin-bottom: var(--space-lg);
}

.section-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
}

.section-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ============================================
   MODULES GRID
   ============================================ */
.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-md);
}

.module-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.5s ease both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.module-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, 
        rgba(26, 82, 118, 0.08) 0%, 
        rgba(230, 126, 34, 0.05) 100%
    );
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
}

.module-card:hover {
    border-color: var(--border-color-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(26, 82, 118, 0.1);
}

.module-card:hover::after {
    opacity: 1;
}

.module-icon {
    font-size: 2.2rem;
    margin-bottom: var(--space-md);
    display: inline-block;
    transition: transform var(--transition-base);
}

.module-card:hover .module-icon {
    transform: scale(1.15);
}

.module-title {
    font-size: var(--font-size-md);
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--color-text-primary);
}

.module-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.module-status {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    background: rgba(230, 126, 34, 0.1);
    color: var(--color-accent);
    border: 1px solid rgba(230, 126, 34, 0.2);
}

/* ============================================
   INFO GRID
   ============================================ */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-md);
}

.info-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    transition: all var(--transition-fast);
}

.info-card:hover {
    border-color: var(--border-color-light);
}

.info-label {
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-muted);
    font-weight: 600;
}

.info-value {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-primary-light);
}

/* ============================================
   FOOTER
   ============================================ */
.main-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-xl);
    border-top: 1px solid var(--border-color);
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    flex-shrink: 0;
}

.footer-version {
    font-weight: 500;
}

/* ============================================
   SIDEBAR OVERLAY (Mobile)
   ============================================ */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 90;
}

.sidebar-overlay.active {
    display: block;
    animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ============================================
   SCROLLBAR GLOBAL
   ============================================ */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--color-bg-elevated);
    border-radius: var(--radius-full);
    border: 2px solid var(--color-bg-primary);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-bg-hover);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .modules-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-width);
    }

    .sidebar.mobile-open {
        transform: translateX(0);
    }

    .main-wrapper {
        margin-left: 0 !important;
    }

    .mobile-toggle {
        display: flex;
    }

    .topbar {
        padding: 0 var(--space-md);
    }

    .topbar-search {
        display: none;
    }

    .content {
        padding: var(--space-md);
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .modules-grid {
        grid-template-columns: 1fr;
    }

    .page-header {
        flex-direction: column;
    }

    .page-title {
        font-size: var(--font-size-xl);
    }

    .main-footer {
        flex-direction: column;
        gap: var(--space-xs);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .info-grid {
        grid-template-columns: 1fr 1fr;
    }
}