/* ==========================================
   Modern DISKI Portal Styles
   ========================================== */

/* CSS Variables */
:root {
    --primary-color: #3B82F6;
    --primary-hover: #2563EB;
    --secondary-color: #8B5CF6;
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --danger-color: #EF4444;

    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --text-light: #9CA3AF;

    --bg-primary: #FFFFFF;
    --bg-secondary: #F9FAFB;
    --bg-tertiary: #F3F4F6;

    --border-color: #E5E7EB;
    --border-radius: 8px;
    --border-radius-lg: 12px;

    --sidebar-width: 280px;
    --header-height: 70px;

    --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);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body.modern-body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1001;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    width: 44px;
    height: 44px;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.mobile-menu-toggle i {
    font-size: 20px;
    color: var(--text-primary);
}

/* Mobile Logo */
.mobile-logo {
    display: none;
    position: fixed;
    top: 15px;
    left: 15px;
    z-index: 101;
    height: 50px;
    /*background: var(--bg-primary);*/
    padding: 5px 10px;
    /*border-radius: var(--border-radius);*/
    /*box-shadow: var(--shadow-md);*/
}

.mobile-logo img {
    height: 100%;
    width: auto;
    object-fit: contain;
    display: block;
}

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 1000;
    transition: var(--transition);
}

.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--text-light);
}

/* Sidebar Header */
.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border-color);
}

.logo-container {
    text-align: center;
}

.logo-img {
    max-height: 80px;
    width: auto;
    object-fit: contain;
}

/* Sidebar Navigation */
.sidebar-nav {
    padding: 20px 0;
}

.nav-section {
    margin-bottom: 30px;
}

.nav-section:last-child {
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    margin-top: auto;
}

.nav-section-title {
    padding: 8px 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-light);
    margin-bottom: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
    cursor: pointer;
}

.nav-item:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--bg-secondary);
    color: var(--primary-color);
    font-weight: 500;
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary-color);
}

.nav-item i {
    width: 20px;
    margin-right: 12px;
    font-size: 16px;
}

.nav-item span {
    flex: 1;
}

.submenu-arrow {
    font-size: 12px;
    transition: var(--transition);
    margin-left: auto;
}

.submenu-arrow.rotate {
    transform: rotate(180deg);
}

/* Navigation Submenu */
.nav-submenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: var(--bg-tertiary);
}

.nav-submenu.active {
    max-height: 630px;
}

.nav-subitem {
    display: flex;
    align-items: center;
    padding: 10px 20px 10px 52px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.nav-subitem:hover {
    color: var(--primary-color);
    background: rgba(59, 130, 246, 0.05);
}

.nav-subitem i {
    width: 16px;
    margin-right: 10px;
    font-size: 14px;
}

/* Logout Item */
.logout-item {
    color: var(--danger-color);
}

.logout-item:hover {
    background: rgba(239, 68, 68, 0.05);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

.payment-icons {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 12px;
}

.payment-icons img {
    height: 30px;
    object-fit: contain;
}

.ssl-badge {
    text-align: center;
}

.ssl-badge img {
    height: 35px;
    object-fit: contain;
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

/* Sidebar Toggle Button - Desktop */
.sidebar-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    margin-right: 16px;
    color: var(--text-secondary);
}

.sidebar-toggle-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--primary-color);
}

.sidebar-toggle-btn i {
    font-size: 18px;
    transition: var(--transition);
}

/* Sidebar collapsed state */
.sidebar.collapsed {
    width: 80px;
}

.sidebar.collapsed .sidebar-header {
    padding: 24px 10px;
}

.sidebar.collapsed .logo-img {
    max-width: 50px;
}

.sidebar.collapsed .nav-section-title,
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .submenu-arrow,
.sidebar.collapsed .nav-submenu,
.sidebar.collapsed .sidebar-footer .payment-icons,
.sidebar.collapsed .sidebar-footer .ssl-badge,
.sidebar.collapsed .content-footer {
    display: none;
}

.sidebar.collapsed .nav-item,
.sidebar.collapsed .nav-subitem {
    justify-content: center;
    padding: 12px 10px;
}

.sidebar.collapsed .nav-item i {
    margin-right: 0;
    font-size: 20px;
}

/* Main content adjustment when sidebar collapsed */
.main-content.sidebar-collapsed {
    margin-left: 80px;
}

/* Body class for global state */
body.sidebar-collapsed .sidebar {
    width: 80px;
}

body.sidebar-collapsed .main-content {
    margin-left: 80px;
}
/* Sol taraftaki öğeleri grupla */
.content-header > .sidebar-toggle-btn,
.content-header > .header-left {
    flex-shrink: 0;
}

.content-header > .header-right {
    margin-left: auto; /* Sağa itmek için */
}

/* Content Header */
.content-header {
    height: var(--header-height);
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 0 32px;
    display: flex;
    align-items: center;
    /*justify-content: space-between;*/
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-left {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.page-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1;
}

.page-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
}

.header-right {
    display: flex;
    gap: 12px;
}

.header-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.header-btn i {
    font-size: 18px;
}

/* Content Area */
.content-area {
    flex: 1;
    padding: 10px;
}

/* Content Section */
.content-section {
    margin-bottom: 40px;
}

.section-header {
    margin-bottom: 24px;
}

.section-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.section-title i {
    color: var(--warning-color);
}

/* Card Grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 24px;
}

/* Feature Card */
.feature-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 28px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-card.featured {
    border-color: var(--warning-color);
    background: linear-gradient(135deg, #FEF3C7 0%, var(--bg-primary) 50%);
}

.feature-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    background: var(--warning-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 14px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.card-icon-wrapper {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    transition: var(--transition);
}

.feature-card:hover .card-icon-wrapper {
    transform: scale(1.05);
    background: var(--bg-tertiary);
}

.card-icon {
    max-width: 60px;
    max-height: 60px;
    object-fit: contain;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    text-align: center;
}

.card-description {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    text-align: center;
    line-height: 1.5;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    width: 100%;
    justify-content: center;
}

.card-link:hover {
    background: var(--primary-hover);
    transform: translateX(2px);
}

.card-link i {
    font-size: 12px;
    transition: var(--transition);
}

.card-link:hover i {
    transform: translateX(4px);
}

/* Main Menu Cards */
.card-grid-main {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.menu-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 32px;
    transition: var(--transition);
    text-align: center;
}

.menu-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.menu-card-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-radius: var(--border-radius-lg);
    transition: var(--transition);
}

.menu-card:hover .menu-card-icon {
    transform: scale(1.05);
}

.menu-card-icon img {
    max-width: 70px;
    max-height: 70px;
    object-fit: contain;
}

.menu-card-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.menu-card-text {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
}

.menu-card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition);
}

.menu-card-link:hover {
    color: var(--primary-hover);
    gap: 12px;
}

.menu-card-link i {
    font-size: 12px;
    transition: var(--transition);
}

/* Content Footer */
.content-footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: 10px 32px;
    margin-top: auto;
}

.footer-content {
    text-align: center;
}

.footer-text {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 8px;
}

.footer-copyright {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .card-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 992px) {
    :root {
        --sidebar-width: 300px;
    }

    .content-area {
        padding: 24px;
    }

    .card-grid {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        gap: 20px;
    }

    .card-grid-main {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .mobile-logo {
        display: block;
    }

    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
        box-shadow: var(--shadow-xl);
    }

    .main-content {
        margin-left: 0;
    }

    body.menu-open {
        overflow: hidden;
    }

    body.menu-open::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 999;
    }

    .content-header {
        padding: 0 80px;
    }

    .page-title {
        font-size: 20px;
    }

    .content-area {
        padding: 20px;
        padding-top: 30px;
    }

    .card-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .feature-card {
        padding: 24px;
    }
}

@media (max-width: 576px) {
    .content-header {
        height: auto;
        min-height: var(--header-height);
        flex-direction: column;
        align-items: flex-start;
        padding: 16px 80px;
        gap: 6px;
    }

    .header-right {
        width: 100%;
        justify-content: flex-end;
        display: none;
    }

    .page-title {
        font-size: 18px;
        display: none;
    }

    .page-subtitle {
        font-size: 13px;
        display: none;
    }

    .section-title {
        font-size: 18px;
    }

    .card-title {
        font-size: 16px;
    }

    .menu-card-title {
        font-size: 18px;
    }

    .payment-icons img {
        height: 24px;
    }

    .ssl-badge img {
        height: 28px;
    }
}

/* Print Styles */
@media print {
    .sidebar,
    .mobile-menu-toggle,
    .content-header,
    .content-footer {
        display: none;
    }

    .main-content {
        margin-left: 0;
    }

    .content-area {
        padding: 0;
    }
}

/* Accessibility */
.nav-item:focus,
.nav-subitem:focus,
.card-link:focus,
.menu-card-link:focus,
.header-btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Loading Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card,
.menu-card {
    animation: fadeIn 0.5s ease-out;
}

.feature-card:nth-child(1) {
    animation-delay: 0.1s;
}

.feature-card:nth-child(2) {
    animation-delay: 0.2s;
}

.feature-card:nth-child(3) {
    animation-delay: 0.3s;
}

.feature-card:nth-child(4) {
    animation-delay: 0.4s;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection */
::selection {
    background: var(--primary-color);
    color: white;
}

::-moz-selection {
    background: var(--primary-color);
    color: white;
}
.logout-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--danger-color);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}

.logout-btn:hover {
    background: #DC2626;
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

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

.logout-btn i {
    font-size: 16px;
}

.logout-btn span {
    font-weight: 600;
}

/* Responsive düzenlemeler */
@media (max-width: 768px) {
    .logout-btn {
        padding: 8px 16px;
        font-size: 13px;
    }

    .logout-btn i {
        font-size: 14px;
    }
}

@media (max-width: 576px) {
    .header-right {
        /*width: auto !important;*/
        display: flex !important;
    }

    .logout-btn span {
        display: none; /* Mobilde sadece ikon göster */
    }

    .logout-btn {
        width: 40px;
        height: 40px;
        padding: 0;
        justify-content: center;
        border-radius: 50%;
    }

    .logout-btn i {
        margin: 0;
    }
}

/* Focus durumu - erişilebilirlik için */
.logout-btn:focus {
    outline: 2px solid var(--danger-color);
    outline-offset: 2px;
}


/* Responsive - Mobilde toggle butonunu gizle */
@media (max-width: 768px) {
    .sidebar-toggle-btn {
        display: none;
    }

    /* Mobilde sidebar her zaman full genişlikte */
    body.sidebar-collapsed .sidebar {
        width: var(--sidebar-width);
    }

    body.sidebar-collapsed .main-content {
        margin-left: 0;
    }
}