:root {
    --primary-color: #4361ee;
    --secondary-color: #3f37c9;
    --accent-color: #4895ef;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --text-light: #f8f9fa;
    --text-dark: #212529;
    --text-primary: #4361ee;
    --text-secondary: #3f37c9;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: 1px solid rgba(255, 255, 255, 0.18);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    --font-family: 'Poppins', sans-serif;
    --font-size-normal: 1rem;
    --font-size-medium: 1.1rem;
    --font-size-large: 1.3rem;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 600;
}

body.dark-mode {
    --primary-color: #7209b7;
    --secondary-color: #560bad;
    --accent-color: #b5179e;
    --light-color: #212529;
    --dark-color: #00060cad;
    --text-light: #f8f9fa;
    --text-dark: #f8f9fa;
    --text-primary: #b5179e;
    --text-secondary: #7209b7;
    --glass-bg: rgba(33, 37, 41, 0.85);
    --glass-border: 1px solid rgba(255, 255, 255, 0.05);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-family);
}

body {
    font-family: var(--font-family);
    font-weight: var(--font-weight-normal);
    font-size: var(--font-size-normal);
    padding-left: 280px;
    transition: var(--transition);
}

.main-container {
    margin-left: 280px; /* Sidebar genişliği kadar */
    transition: var(--transition);
}


body.dark-mode {
    background-color: #121212;
    color: var(--text-light);
}

/* Desktop Sidebar Styles */
.modern-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    width: 280px;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-right: var(--glass-border);
    box-shadow: var(--glass-shadow);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: var(--transition);
    overflow: hidden;
}

/* Profile Section */
.profile-section {
    padding: 30px 20px;
    text-align: center;
    position: relative;
}

.profile-gradient {
    width: 120px;
    height: 120px;
    margin: 0 auto 15px;
    border-radius: 50%;
    padding: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.profile-avatar {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--light-color);
}

.profile-info {
    margin-top: 15px;
}

.profile-name {
    color: var(--text-dark);
    font-size: var(--font-size-large);
    font-weight: var(--font-weight-bold);
    margin-bottom: 8px;
    transition: var(--transition);
}

.profile-role {
    color: var(--text-primary);
    font-size: var(--font-size-normal);
    font-weight: var(--font-weight-medium);
    margin-bottom: 15px;
}

.profile-social {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.social-icon {
    color: var(--text-dark);
    font-size: 1rem;
    transition: var(--transition);
}

.social-icon:hover {
    color: var(--primary-color);
    transform: translateY(-3px);
}

/* Navigation Section */
.nav-section {
    flex: 1;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.nav-link {
    position: relative;
    display: flex;
    align-items: center;
    padding: 12px 15px;
    border-radius: 8px;
    color: var(--text-dark);
    text-decoration: none;
    transition: var(--transition);
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 3px;
    height: 100%;
    background: var(--primary-color);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform 0.3s ease;
}

.nav-link:hover {
    background: rgba(67, 97, 238, 0.1);
}

.nav-link.active {
    background: rgba(67, 97, 238, 0.1);
    color: var(--text-primary);
}

.nav-link.active::before {
    transform: scaleY(1);
}

.nav-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    color: inherit;
}

.nav-text {
    font-size: var(--font-size-normal);
    font-weight: var(--font-weight-medium);
    flex: 1;
    color: inherit;
}

.nav-indicator {
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    opacity: 0;
    transition: var(--transition);
}

.nav-link.active .nav-indicator {
    opacity: 1;
}

/* Collapse Toggle */
.collapse-toggle {
    position: absolute;
    right: -12px;
    top: 50px;
    width: 24px;
    height: 24px;
    background: var(--light-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    z-index: 10;
}

.toggle-circle {
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.toggle-arrow {
    color: white;
    font-size: 10px;
    transition: var(--transition);
}

.collapse-toggle:hover .toggle-circle {
    transform: scale(1.1);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.theme-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.toggle-switch {
    width: 40px;
    height: 20px;
    background: #ccc;
    border-radius: 10px;
    position: relative;
    transition: var(--transition);
}

.switch-knob {
    position: absolute;
    left: 2px;
    top: 2px;
    width: 16px;
    height: 16px;
    background: white;
    border-radius: 50%;
    transition: var(--transition);
}

.theme-label {
    font-size: 0.9rem;
    color: var(--text-dark);
    font-weight: var(--font-weight-medium);
}

.settings-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--text-dark);
    cursor: pointer;
    transition: var(--transition);
}

.settings-btn:hover {
    background: rgba(0, 0, 0, 0.05);
    transform: rotate(30deg);
}

/* Collapsed Sidebar */
.modern-sidebar.collapsed {
    width: 80px;
}

.modern-sidebar.collapsed~body {
    padding-left: 80px;
}

.modern-sidebar.collapsed .profile-info,
.modern-sidebar.collapsed .nav-text,
.modern-sidebar.collapsed .theme-label,
.modern-sidebar.collapsed .settings-btn {
    display: none;
}

.modern-sidebar.collapsed .profile-gradient {
    width: 50px;
    height: 50px;
}

.modern-sidebar.collapsed .nav-link {
    justify-content: center;
    padding: 15px 0;
}

.modern-sidebar.collapsed .nav-icon {
    margin-right: 0;
}

.modern-sidebar.collapsed .toggle-arrow {
    transform: rotate(180deg);
}

.modern-sidebar.collapsed .sidebar-footer {
    justify-content: center;
}

/* Mobile Navbar - İkinci Koddan Alınan Stil */
.mobile-navbar {
    position: fixed;
    bottom: 1.5rem;
    left: 1rem;
    right: 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 0.75rem;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    display: none;
}

.mobile-nav-container {
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.mobile-nav-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-md);
    color: var(--text-muted);
    text-decoration: none;
    transition: all var(--transition-fast);
    font-size: 1.1rem;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    color: var(--primary-color);
    background: rgba(37, 99, 235, 0.1);
}

.mobile-menu-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: var(--border-radius-md);
    background: transparent;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.mobile-menu-btn:hover {
    background: var(--hover-bg);
}

.hamburger {
    width: 20px;
    height: 14px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-secondary);
    border-radius: 1px;
    transition: all var(--transition-fast);
}

.mobile-menu-btn.active .hamburger span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.mobile-menu-btn.active .hamburger span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active .hamburger span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-menu-container {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--light-color);
    border-radius: 20px 20px 0 0;
    padding: 20px;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.mobile-profile {
    display: flex;
    align-items: center;
    gap: 15px;
}

.mobile-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-color);
}

.mobile-profile-info h3 {
    font-size: var(--font-size-medium);
    color: var(--text-dark);
    margin-bottom: 3px;
    font-weight: var(--font-weight-bold);
}

.mobile-profile-info p {
    font-size: var(--font-size-normal);
    color: var(--text-primary);
    font-weight: var(--font-weight-medium);
}

.close-menu-btn {
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--text-dark);
    cursor: pointer;
}

.mobile-menu-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 30px;
}

.mobile-menu-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px;
    border-radius: 10px;
    color: var(--text-dark);
    text-decoration: none;
    transition: var(--transition);
    font-size: var(--font-size-normal);
    font-weight: var(--font-weight-medium);
}

.mobile-menu-link i:first-child {
    margin-right: 15px;
    width: 20px;
    text-align: center;
    color: var(--text-primary);
}

.mobile-menu-link span {
    flex: 1;
    color: inherit;
}

.mobile-menu-link:hover {
    background: rgba(67, 97, 238, 0.1);
}

.mobile-menu-footer {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.mobile-theme-toggle {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 10px;
    cursor: pointer;
    font-size: var(--font-size-normal);
    font-weight: var(--font-weight-medium);
    color: var(--text-dark);
    border-radius: 10px;
    transition: var(--transition);
}

.mobile-theme-toggle:hover {
    background: rgba(67, 97, 238, 0.1);
}

.mobile-theme-toggle i {
    color: var(--text-primary);
}

.mobile-toggle-switch {
    width: 40px;
    height: 20px;
    background: #ccc;
    border-radius: 10px;
    position: relative;
    margin-left: auto;
}

.mobile-switch-knob {
    position: absolute;
    left: 2px;
    top: 2px;
    width: 16px;
    height: 16px;
    background: white;
    border-radius: 50%;
    transition: var(--transition);
}

.mobile-social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 10px;
}

.mobile-social-links a {
    color: var(--text-dark);
    font-size: 1.2rem;
    transition: var(--transition);
}

.mobile-social-links a:hover {
    color: var(--primary-color);
    transform: translateY(-3px);
}

/* Dark Mode Styles */
body.dark-mode .mobile-menu-container {
    background: var(--dark-color);
}

body.dark-mode .mobile-profile-info h3,
body.dark-mode .mobile-menu-link {
    color: var(--text-light);
}

body.dark-mode .toggle-switch,
body.dark-mode .mobile-toggle-switch {
    background: #555;
}

body.dark-mode .switch-knob,
body.dark-mode .mobile-switch-knob {
    transform: translateX(20px);
    background: var(--light-color);
}

body.dark-mode .settings-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Animation for menu icon */
.mobile-menu-btn.active .menu-icon span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.mobile-menu-btn.active .menu-icon span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active .menu-icon span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* Responsive Styles */
@media (max-width: 992px) {
    .modern-sidebar {
        width: 240px;
    }

    body {
        padding-left: 240px;
    }
}

@media (max-width: 768px) {
    .desktop-only {
        display: none !important;
    }

    .mobile-only {
        display: block;
    }

    .mobile-navbar {
        display: block;
    }

    .mobile-menu-overlay.active {
        display: block;
        opacity: 1;
    }

    .mobile-menu-overlay.active .mobile-menu-container {
        transform: translateY(0);
    }

    body {
        padding-left: 0 !important;
    }
}

/* İkinci Koddan Eklenen Değişkenler ve Stiller */
:root {
    /* Professional Blog Colors - Calm & Serene */
    --primary-color: #2563eb;
    --primary-light: #3b82f6;
    --primary-dark: #1e40af;
    --secondary-color: #64748b;
    --accent-color: #0f172a;

    /* Neutral Palette */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    /* Semantic Colors */
    --text-primary: var(--gray-900);
    --text-secondary: var(--gray-600);
    --text-muted: var(--gray-500);
    --bg-primary: #ffffff;
    --bg-secondary: var(--gray-50);
    --border-color: var(--gray-200);
    --hover-bg: var(--gray-100);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Spacing & Layout */
    --sidebar-width: 280px;
    --border-radius-sm: 6px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --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);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

body.dark-mode {
    --text-primary: var(--gray-100);
    --text-secondary: var(--gray-300);
    --text-muted: var(--gray-400);
    --bg-primary: var(--gray-900);
    --bg-secondary: var(--gray-800);
    --border-color: var(--gray-700);
    --hover-bg: var(--gray-800);
    --primary-color: #3b82f6;
}

.profile-role {
    color: var(--text-primary);
    font-size: var(--font-size-normal);
    font-weight: var(--font-weight-medium);
    margin-bottom: 15px;

    /* El yazısı fontu */
    font-family: 'Dancing Script', cursive;
    font-size: 1.4rem;
    /* biraz daha büyük görünmesi için */
    font-style: italic;
    /* daha akıcı dursun */
    letter-spacing: 0.5px;
}