:root {
    --text-color: #000B58; /* Koyu Mavi Metin */
    --text-color-secondary: #003161; /* İkincil Koyu Mavi Metin */
    --primary-color: #4E71FF;
    --component-bg: rgba(255, 255, 255, 0.3); /* Buzlu Cam Efekti */
    --hover-bg: rgba(255, 255, 255, 0.4);
    --border-color: rgba(255, 255, 255, 0.5);
    --card-border-radius: 20px;
    --scrollbar-bg: rgba(255, 255, 255, 0.1); /* Glass morphism scroll bar arka plan */
    --scrollbar-thumb: rgba(255, 255, 255, 0.3); /* Glass morphism scroll bar thumb */
    --scrollbar-thumb-hover: rgba(255, 255, 255, 0.5); /* Hover durumu */
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(-45deg, #5409da, #4e71ff, #8dd8ff, #bbfbff);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    color: var(--text-color);
    font-family: 'Poppins', sans-serif;
    overflow-x: hidden;
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.main-content {
    transition: margin-left 0.3s ease;
    padding: 20px;
    margin-left: 0; /* Sidebar kapalıyken varsayılan */
}

.main-content.full-width {
    margin-left: 110px; /* collapsed sidebar genişliği + 20px boşluk */
}

.page-content {
    padding: 2rem;
    animation: fadeIn 0.3s ease;
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Glass Morphism Scroll Bar Stilleri */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-track {
    background: var(--scrollbar-bg);
    border-radius: 10px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    margin: 2px;
}

::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
    transform: scale(1.05);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

::-webkit-scrollbar-corner {
    background: var(--scrollbar-bg);
    border-radius: 10px;
    backdrop-filter: blur(10px);
}

/* Firefox için Glass Morphism Scroll Bar Stilleri */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-bg);
}

/* Özel scroll bar stilleri - belirli elementler için */
.glass-scroll {
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-bg);
}

.glass-scroll::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.glass-scroll::-webkit-scrollbar-track {
    background: var(--scrollbar-bg);
    border-radius: 8px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.glass-scroll::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.glass-scroll::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
    transform: scale(1.1);
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.4);
}

/* Mobil cihazlar için daha ince scroll bar */
@media (max-width: 768px) {
    ::-webkit-scrollbar {
        width: 6px;
        height: 6px;
    }
    
    .glass-scroll::-webkit-scrollbar {
        width: 4px;
        height: 4px;
    }
    
    ::-webkit-scrollbar-track,
    .glass-scroll::-webkit-scrollbar-track {
        border-radius: 6px;
        margin: 1px;
    }
    
    ::-webkit-scrollbar-thumb,
    .glass-scroll::-webkit-scrollbar-thumb {
        border-radius: 6px;
    }
}

/* Genel Animasyonlar */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@media (max-width: 992px) {
    .main-content,
    .main-content.full-width {
        padding-left: 100px;
    }
    
    .container {
        margin: 1rem;
        height: 95vh;
    }
}

@media (max-width: 768px) {
    .main-content {
        margin-left: 0;
        padding: 10px;
    }
    .main-content.full-width {
        margin-left: 0;
    }
    
    .container {
        margin: 0.5rem;
        border-radius: 8px;
    }
    
    .page-content {
        padding: 1rem;
    }
}