/* ========================================
   MAIN RESPONSIVE STYLESHEET
   Logistik System - Main Styles
   ======================================== */

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

/* ========================================
   BASE STYLES
   ======================================== */

:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --dark-color: #212529;
    --light-color: #f8f9fa;
    --sidebar-width: 250px;
    --sidebar-collapsed-width: 70px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #f8f9fa;
    font-size: 14px;
    line-height: 1.6;
}

/* ========================================
   SIDEBAR STYLES
   ======================================== */

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: var(--sidebar-width);
    background-color: var(--dark-color);
    color: white;
    transition: all 0.3s ease;
    z-index: 1000;
    overflow-y: auto;
}

.sidebar-header {
    padding: 1.5rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    color: white;
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 700;
}

.sidebar-brand i {
    font-size: 1.5rem;
    margin-right: 0.5rem;
}

.sidebar-menu {
    padding: 1rem 0;
}

.menu-section-title {
    color: #6c757d;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 1rem 1rem 0.5rem;
    margin-top: 1rem;
}

.nav-item {
    margin-bottom: 0.25rem;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: white;
}

.nav-link.active {
    background-color: rgba(13, 110, 253, 0.1);
    color: white;
    border-left-color: var(--primary-color);
}

.nav-link i {
    margin-right: 0.75rem;
    font-size: 1.1rem;
}

/* Sidebar User Dropdown */
.sidebar-user {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Mobile Hamburger Menu */
.hamburger-menu {
    display: none;
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1001;
    background-color: var(--dark-color);
    color: white;
    border: none;
    padding: 0.5rem;
    border-radius: 0.25rem;
    cursor: pointer;
    font-size: 1.5rem;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

/* ========================================
   MAIN CONTENT AREA
   ======================================== */

.main-content {
    margin-left: var(--sidebar-width);
    padding: 1.5rem;
    min-height: 100vh;
    transition: margin-left 0.3s ease;
}

.content-header {
    background-color: white;
    border-radius: 0.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.content-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
}

.content-header .user-info {
    color: #6c757d;
    font-size: 0.875rem;
}

/* ========================================
   RESPONSIVE BREAKPOINTS
   ======================================== */

/* Tablet and below (< 1024px) */
@media (max-width: 1023px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .sidebar-overlay.active {
        display: block;
    }
    
    .hamburger-menu {
        display: block;
    }
    
    .main-content {
        margin-left: 0;
    }
}

/* Mobile (< 768px) */
@media (max-width: 767px) {
    body {
        font-size: 13px;
    }
    
    .main-content {
        padding: 1rem;
    }
    
    .content-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
        padding: 1rem;
    }
    
    .content-header h1 {
        font-size: 1.25rem;
    }
    
    .sidebar {
        width: 280px;
    }
}

/* Small Mobile (< 480px) */
@media (max-width: 479px) {
    .main-content {
        padding: 0.75rem;
    }
    
    .content-header {
        padding: 0.75rem;
    }
    
    .content-header h1 {
        font-size: 1.1rem;
    }
}

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

.text-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.shadow-sm {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075) !important;
}

.rounded-3 {
    border-radius: 0.5rem !important;
}

.rounded-4 {
    border-radius: 0.75rem !important;
}

/* ========================================
   PRINT STYLES
   ======================================== */

@media print {
    .sidebar,
    .hamburger-menu,
    .content-header {
        display: none;
    }
    
    .main-content {
        margin-left: 0;
        padding: 0;
    }
}