/* Import Modern Font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color: #4F46E5;
    --primary-hover: #4338CA;
    --secondary-color: #6B7280;
    --success-color: #10B981;
    --success-hover: #059669;
    --danger-color: #EF4444;
    --danger-hover: #DC2626;
    --warning-color: #F59E0B;
    --info-color: #73C4EA;
    --bg-light: #F4F9FC;
    --bg-white: #FFFFFF;
    --text-main: #111827;
    --text-muted: #6B7280;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', sans-serif !important;
    background: url('../img/fondo_c.jpg') center center / cover no-repeat fixed !important;
    color: var(--text-main);
    padding-top: 80px !important; /* Space for fixed navbar */
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600 !important;
    color: var(--text-main);
}

h1 { font-size: 2.25rem !important; margin-bottom: 1.5rem !important; }

/* ==========================================================================
   Navbar (Glassmorphism)
   ========================================================================== */
.navbar-inverse {
    background: rgba(1, 167, 214, 0.95) !important; /* UTN Blue Glass */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: none !important;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1) !important;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.navbar-inverse .navbar-brand {
    color: #FFFFFF !important;
    font-weight: 700;
    letter-spacing: -0.025em;
}

.navbar-inverse .navbar-nav > li > a {
    color: rgba(255, 255, 255, 0.8) !important;
    font-weight: 500;
    padding: 15px 20px !important;
    transition: var(--transition);
    position: relative;
}

.navbar-inverse .navbar-nav > li > a:hover,
.navbar-inverse .navbar-nav > li > a:focus {
    color: #FFFFFF !important;
    background: rgba(0, 0, 0, 0.1) !important;
}

.navbar-inverse .navbar-nav > li > a::after {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 20px;
    right: 20px;
    height: 2px;
    background-color: #FFFFFF;
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.navbar-inverse .navbar-nav > li > a:hover::after {
    transform: scaleX(1);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    font-family: 'Inter', sans-serif !important;
    font-weight: 500 !important;
    border-radius: var(--border-radius-sm) !important;
    padding: 0.5rem 1.25rem !important;
    transition: var(--transition) !important;
    border: none !important;
    text-transform: none !important;
    letter-spacing: 0.01em;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-sm {
    padding: 0.4rem 0.8rem !important;
    font-size: 0.9rem !important;
}

.btn i.fa, .btn i.fas, .btn i.far, .btn i.fal, .btn i.glyphicon {
    font-size: 1.6em !important;
    vertical-align: middle;
}
.btn-sm i.glyphicon, .btn-sm i.fa {
    font-size: 22px !important;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary { background-color: var(--primary-color) !important; color: white !important; }
.btn-primary:hover { background-color: var(--primary-hover) !important; }

.btn-success { background-color: var(--success-color) !important; color: white !important; }
.btn-success:hover { background-color: var(--success-hover) !important; }

.btn-danger { background-color: var(--danger-color) !important; color: white !important; }
.btn-danger:hover { background-color: var(--danger-hover) !important; }

.btn-info { background-color: var(--info-color) !important; color: white !important; }
.btn-info:hover { background-color: #2563EB !important; }

.btn-warning { background-color: var(--warning-color) !important; color: white !important; }
.btn-warning:hover { background-color: #D97706 !important; }

/* ==========================================================================
   Cards / Containers
   ========================================================================== */
.premium-card {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid rgba(229, 231, 235, 0.5);
    max-width: 100%;
    overflow-x: auto;
}

/* ==========================================================================
   Forms & Inputs
   ========================================================================== */
.form-control {
    border-radius: var(--border-radius-sm) !important;
    border: 1px solid #D1D5DB !important;
    padding: 0.6rem 1rem !important;
    height: auto !important;
    box-shadow: none !important;
    transition: var(--transition) !important;
    font-family: 'Inter', sans-serif !important;
}

.form-control:focus {
    border-color: var(--primary-color) !important;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2) !important;
}

/* ==========================================================================
   Tables & DataTables Overrides
   ========================================================================== */
.table {
    border-collapse: separate !important;
    border-spacing: 0 !important;
    width: 100% !important;
    margin-bottom: 0 !important;
    border: none !important;
}

.table > thead > tr > th {
    background-color: #F9FAFB;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid #E5E7EB !important;
    border-top: none !important;
    padding: 1rem !important;
}

.table > tbody > tr > td {
    padding: 1rem !important;
    vertical-align: middle !important;
    border-bottom: 1px solid #E5E7EB !important;
    border-top: none !important;
    color: var(--text-main);
}

.table > tbody > tr:hover {
    background-color: #F9FAFB !important;
}

.table-bordered {
    border: none !important;
}
.table-bordered > tbody > tr > td, 
.table-bordered > thead > tr > th {
    border-left: none !important;
    border-right: none !important;
}

/* ==========================================================================
   Nested Tables (Productos Solicitados)
   ========================================================================== */
.nested-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background-color: #F8FAFC;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    border: 1px solid #E2E8F0;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.02);
}

.nested-table th {
    background-color: #EEF2F6;
    color: var(--text-muted);
    font-size: 1.2rem;
    font-weight: 600;
    text-transform: uppercase;
    padding: 1.5rem 1.5rem;
    border-bottom: 1px solid #E2E8F0;
    text-align: left;
}

.nested-table td {
    padding: 1.8rem 1.5rem;
    font-size: 1.35rem;
    color: var(--text-main);
    border-bottom: 1px solid #F1F5F9;
    word-break: break-word;
}

.nested-table tbody tr:last-child td {
    border-bottom: none;
}

/* DataTables Specific */
.dataTables_wrapper .dataTables_filter input {
    border: 1px solid #D1D5DB;
    border-radius: var(--border-radius-sm);
    padding: 0.4rem 0.75rem;
    margin-left: 0.5em;
    outline: none;
    transition: var(--transition);
}
.dataTables_wrapper .dataTables_filter input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

.dataTables_wrapper .dataTables_length select {
    border: 1px solid #D1D5DB;
    border-radius: var(--border-radius-sm);
    padding: 0.3rem 0.5rem;
    outline: none;
}

table.dataTable.no-footer {
    border-bottom: 1px solid #E5E7EB !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
    border-radius: var(--border-radius-sm) !important;
    border: 1px solid transparent !important;
    padding: 0.4em 0.8em !important;
    margin-left: 2px !important;
    transition: var(--transition);
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current,
.dataTables_wrapper .dataTables_paginate .paginate_button.current:hover {
    background: var(--primary-color) !important;
    color: white !important;
    border: 1px solid var(--primary-color) !important;
    box-shadow: var(--shadow-sm);
}

.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
    background: #F3F4F6 !important;
    color: var(--text-main) !important;
    border: 1px solid #D1D5DB !important;
}

/* ==========================================================================
   Badges / Status Indicators
   ========================================================================== */
.status-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    font-size: 1.05rem;
    font-weight: 600;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.status-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: #DC2626;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.status-warning {
    background-color: rgba(245, 158, 11, 0.1);
    color: #D97706;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.status-info {
    background-color: rgba(59, 130, 246, 0.1);
    color: #2563EB;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.status-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: #059669;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* ==========================================================================
   Split-Screen Login (index.php)
   ========================================================================== */
.split-login-container {
    display: flex;
    min-height: 100vh;
    width: 100vw;
    margin: 0;
    padding: 0;
}

.split-left {
    flex: 6; /* 60% */
    background-color: #01A7D6;
    background-image: linear-gradient(rgba(1, 167, 214, 0.4), rgba(1, 167, 214, 0.8)), url('../img/sidebar-1.jpg');
    background-position: center center;
    background-size: contain;
    background-repeat: no-repeat;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    padding: 3rem;
}

.split-right {
    flex: 4; /* 40% */
    background-color: #FFFFFF;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 4rem;
    box-shadow: -10px 0 25px -5px rgba(0, 0, 0, 0.1);
    z-index: 10;
}

.split-left-title {
    font-size: 4.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 1.5rem;
    text-shadow: 0 5px 15px rgba(0,0,0,0.5);
    line-height: 1.1;
}

.split-left-subtitle {
    font-size: 2.5rem;
    font-weight: 400;
    text-align: center;
    text-shadow: 0 4px 10px rgba(0,0,0,0.4);
    opacity: 0.95;
}

.login-form-wrapper {
    width: 100%;
    max-width: 500px;
}

.login-logo {
    max-width: 100%;
    height: auto;
    margin-bottom: 2rem;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.login-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 2rem;
}

.login-btn {
    width: 100%;
    padding: 1.2rem !important;
    font-size: 1.3rem !important;
    font-weight: 600 !important;
    border-radius: var(--border-radius-sm) !important;
    margin-top: 1.5rem;
    letter-spacing: 0.5px;
}

@media (max-width: 991px) {
    .split-login-container {
        flex-direction: column;
    }
    .split-left {
        flex: 3;
        padding: 4rem 2rem;
    }
    .split-right {
        flex: 7;
        box-shadow: 0 -10px 25px -5px rgba(0, 0, 0, 0.1);
    }
}