/* =============================================
   AVIATION HR PRO - Professional Theme
   ============================================= */

:root {
    /* Primary Colors */
    --aviation-primary: #1e3a8a;      /* Deep Aviation Blue */
    --aviation-secondary: #3b82f6;    /* Sky Blue */
    --aviation-accent: #f59e0b;       /* Golden Orange */
    --aviation-success: #10b981;      /* Emerald Green */
    --aviation-warning: #f59e0b;      /* Warning Orange */
    --aviation-danger: #ef4444;       /* Alert Red */
    
    /* Neutral Colors */
    --aviation-light: #f8fafc;        /* Light Gray */
    --aviation-gray: #64748b;         /* Medium Gray */
    --aviation-dark: #1e293b;         /* Dark Gray */
    --aviation-white: #ffffff;        /* Pure White */
    
    /* Gradients */
    --aviation-gradient-primary: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    --aviation-gradient-secondary: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
    --aviation-gradient-accent: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
    
    /* Shadows */
    --aviation-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --aviation-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --aviation-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --aviation-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* =============================================
   LOGO STYLES
   ============================================= */

.aviation-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    text-decoration: none;
    color: var(--aviation-primary);
    transition: all 0.3s ease;
}

.aviation-logo:hover {
    transform: translateY(-2px);
    color: var(--aviation-secondary);
}

.aviation-logo-icon {
    width: 48px;
    height: 48px;
    background: var(--aviation-gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--aviation-shadow-md);
    position: relative;
    overflow: hidden;
}

.aviation-logo-icon::before {
    content: "✈️";
    font-size: 24px;
    animation: logoFloat 3s ease-in-out infinite;
}

.aviation-logo-icon::after {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
    transform: rotate(45deg);
    animation: logoShine 2s ease-in-out infinite;
}

.aviation-logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.aviation-logo-main {
    font-size: 24px;
    font-weight: 700;
    color: var(--aviation-primary);
    letter-spacing: -0.5px;
}

.aviation-logo-subtitle {
    font-size: 12px;
    font-weight: 500;
    color: var(--aviation-gray);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Logo Animations */
@keyframes logoFloat {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-3px); }
}

@keyframes logoShine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    50% { transform: translateX(100%) translateY(100%) rotate(45deg); }
    100% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
}

/* =============================================
   NAVBAR STYLES
   ============================================= */

.aviation-navbar {
    background: var(--aviation-white);
    border-bottom: 2px solid var(--aviation-light);
    box-shadow: var(--aviation-shadow-sm);
    padding: 1rem 0;
}

.aviation-navbar .navbar-brand {
    font-weight: 700;
    color: var(--aviation-primary);
}

.aviation-navbar .nav-link {
    color: var(--aviation-gray);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.aviation-navbar .nav-link:hover {
    color: var(--aviation-primary);
}

.aviation-navbar .nav-link.active {
    color: var(--aviation-primary);
    font-weight: 600;
}

.aviation-navbar .nav-link.active::after {
    content: "";
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--aviation-gradient-primary);
    border-radius: 2px;
}

/* =============================================
   BUTTON STYLES
   ============================================= */

.btn-aviation-primary {
    background: var(--aviation-gradient-primary);
    border: none;
    color: var(--aviation-white);
    font-weight: 600;
    padding: 12px 24px;
    border-radius: 8px;
    transition: all 0.3s ease;
    box-shadow: var(--aviation-shadow-md);
}

.btn-aviation-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--aviation-shadow-lg);
    color: var(--aviation-white);
}

.btn-aviation-secondary {
    background: var(--aviation-gradient-secondary);
    border: none;
    color: var(--aviation-white);
    font-weight: 600;
    padding: 12px 24px;
    border-radius: 8px;
    transition: all 0.3s ease;
    box-shadow: var(--aviation-shadow-md);
}

.btn-aviation-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--aviation-shadow-lg);
    color: var(--aviation-white);
}

.btn-aviation-accent {
    background: var(--aviation-gradient-accent);
    border: none;
    color: var(--aviation-white);
    font-weight: 600;
    padding: 12px 24px;
    border-radius: 8px;
    transition: all 0.3s ease;
    box-shadow: var(--aviation-shadow-md);
}

.btn-aviation-accent:hover {
    transform: translateY(-2px);
    box-shadow: var(--aviation-shadow-lg);
    color: var(--aviation-white);
}

/* =============================================
   CARD STYLES
   ============================================= */

.aviation-card {
    background: var(--aviation-white);
    border-radius: 12px;
    box-shadow: var(--aviation-shadow-md);
    border: 1px solid var(--aviation-light);
    transition: all 0.3s ease;
    overflow: hidden;
}

.aviation-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--aviation-shadow-xl);
}

.aviation-card-header {
    background: var(--aviation-gradient-primary);
    color: var(--aviation-white);
    padding: 1.5rem;
    font-weight: 600;
    font-size: 1.1rem;
}

.aviation-card-body {
    padding: 1.5rem;
}

/* =============================================
   DASHBOARD STYLES
   ============================================= */

.aviation-dashboard {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    min-height: 100vh;
    padding: 2rem 0;
}

.aviation-stats-card {
    background: var(--aviation-white);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--aviation-shadow-md);
    border-left: 4px solid var(--aviation-primary);
    transition: all 0.3s ease;
}

.aviation-stats-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--aviation-shadow-lg);
}

.aviation-stats-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--aviation-primary);
    line-height: 1;
}

.aviation-stats-label {
    font-size: 0.9rem;
    color: var(--aviation-gray);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.aviation-sidebar {
    background: var(--aviation-white);
    border-right: 1px solid var(--aviation-light);
    box-shadow: var(--aviation-shadow-md);
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    z-index: 1000;
    transition: all 0.3s ease;
}

.aviation-sidebar-header {
    background: var(--aviation-gradient-primary);
    color: var(--aviation-white);
    padding: 1.5rem;
    text-align: center;
    font-weight: 600;
}

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

.aviation-sidebar-item {
    padding: 0.75rem 1.5rem;
    color: var(--aviation-gray);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.aviation-sidebar-item:hover {
    background: var(--aviation-light);
    color: var(--aviation-primary);
    border-left-color: var(--aviation-primary);
}

.aviation-sidebar-item.active {
    background: var(--aviation-light);
    color: var(--aviation-primary);
    border-left-color: var(--aviation-primary);
    font-weight: 600;
}

/* =============================================
   RESPONSIVE DESIGN
   ============================================= */

@media (max-width: 768px) {
    .aviation-logo-main {
        font-size: 20px;
    }
    
    .aviation-logo-subtitle {
        font-size: 10px;
    }
    
    .aviation-sidebar {
        transform: translateX(-100%);
    }
    
    .aviation-sidebar.show {
        transform: translateX(0);
    }
}

/* =============================================
   ANIMATIONS
   ============================================= */

.aviation-fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

.aviation-slide-up {
    animation: slideUp 0.5s ease-in-out;
}

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

@keyframes slideUp {
    from { 
        opacity: 0;
        transform: translateY(20px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

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

.aviation-text-primary { color: var(--aviation-primary) !important; }
.aviation-text-secondary { color: var(--aviation-secondary) !important; }
.aviation-text-accent { color: var(--aviation-accent) !important; }
.aviation-bg-primary { background: var(--aviation-gradient-primary) !important; }
.aviation-bg-secondary { background: var(--aviation-gradient-secondary) !important; }
.aviation-bg-accent { background: var(--aviation-gradient-accent) !important; }