/* ====================================
   NEXLEAF MODERN THEME CSS
   ==================================== */

/* Import fonts - must be at the top */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Poppins:wght@300;400;500;600;700&display=swap');

/* ====================================
   1. CSS VARIABLES & COLOR PALETTE
   ==================================== */
:root {
    /* Primary Colors */
    --primary: #4361ee;
    --primary-hover: #3651de;
    --primary-light: #6b84f3;
    --primary-dark: #3f37c9;
    
    /* Secondary Colors */
    --secondary: #3f37c9;
    --secondary-hover: #362fb5;
    --secondary-light: #5a52d5;
    
    /* Status Colors */
    --success: #06ffa5;
    --success-hover: #00e693;
    --success-light: #33ffb8;
    --danger: #ff006e;
    --danger-hover: #e60062;
    --danger-light: #ff3388;
    --warning: #ffbe0b;
    --warning-hover: #e6aa00;
    --warning-light: #ffca3a;
    --info: #00b4d8;
    --info-hover: #0096b8;
    --info-light: #33c3e0;
    
    /* Neutral Colors */
    --dark: #1a1a2e;
    --dark-hover: #16162a;
    --light: #f8f9fa;
    --light-hover: #e9ecef;
    --white: #ffffff;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    
    /* Fonts */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-secondary: 'Poppins', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 50%;
    
    /* Shadows */
    --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);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

/* ====================================
   2. TYPOGRAPHY
   ==================================== */
body {
    font-family: var(--font-primary);
    font-size: 13px;
    line-height: 1.5;
    color: var(--gray-900);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 0.75rem;
}

h1 { font-size: 1.75rem; }
h2 { font-size: 1.375rem; }
h3 { font-size: 1.125rem; }
h4 { font-size: 1rem; }
h5 { font-size: 0.875rem; }
h6 { font-size: 0.8125rem; }

/* ====================================
   3. SIDEBAR IMPROVEMENTS
   ==================================== */
.sidebar {
    background: linear-gradient(180deg, var(--dark) 0%, #2d2d44 100%);
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-base);
}

.sidebar .nav-link {
    border-radius: var(--radius-md);
    margin: var(--spacing-xs) 0;
    padding: var(--spacing-sm) var(--spacing-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.sidebar .nav-link:before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 0;
    background: var(--primary);
    transition: height var(--transition-base);
    border-radius: 0 2px 2px 0;
}

.sidebar .nav-link:hover {
    background-color: rgba(67, 97, 238, 0.1);
    transform: translateX(5px);
}

.sidebar .nav-link:hover .feather {
    transform: scale(1.1) rotate(5deg);
}

.sidebar .nav-link.active {
    background-color: rgba(67, 97, 238, 0.2);
    color: var(--primary-light);
    box-shadow: 0 0 20px rgba(67, 97, 238, 0.3);
}

.sidebar .nav-link.active:before {
    height: 100%;
}

.sidebar .nav-link.active .feather {
    color: var(--primary);
    filter: drop-shadow(0 0 8px rgba(67, 97, 238, 0.5));
}

.sidebar .feather {
    transition: all var(--transition-base);
}

.sidebar-heading {
    color: var(--gray-500);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-top: var(--spacing-lg);
    padding: var(--spacing-sm) var(--spacing-md);
}

/* ====================================
   4. MODERN CARD STYLES
   ==================================== */
.card, .modern-card {
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    overflow: hidden;
}

.card:hover, .modern-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.card-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    border: none;
    font-weight: 600;
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
}

.card-body {
    padding: 0.875rem;
}

.card-title {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

/* Status Cards */
.status-card {
    position: relative;
    overflow: hidden;
}

.status-card:before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    transform: rotate(45deg);
}

.status-card.success { background: linear-gradient(135deg, var(--success) 0%, var(--success-hover) 100%); }
.status-card.danger { background: linear-gradient(135deg, var(--danger) 0%, var(--danger-hover) 100%); }
.status-card.warning { background: linear-gradient(135deg, var(--warning) 0%, var(--warning-hover) 100%); }
.status-card.info { background: linear-gradient(135deg, var(--info) 0%, var(--info-hover) 100%); }

/* ====================================
   5. FORM & INPUT IMPROVEMENTS
   ==================================== */
.form-group {
    position: relative;
    margin-bottom: 0.75rem;
}

.form-control, .form-select {
    padding: 0.375rem 0.625rem;
    font-size: 0.8125rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    background-color: var(--white);
    color: var(--gray-900);
    height: auto;
}

/* Fix for select option visibility */
select.form-control,
select.form-select {
    color: var(--gray-900) !important;
    background-color: var(--white) !important;
    /* Webkit text fill color kaldırıldı - bu sorun yaratıyor */
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right var(--spacing-md) center;
    background-size: 16px 12px;
    padding-right: 2.5rem !important; /* Ok için yer */
}

/* Select içindeki seçili değer için */
select.form-control:not([multiple]):not([size]),
select.form-select:not([multiple]):not([size]) {
    color: var(--gray-900) !important;
    opacity: 1 !important;
}

/* Select seçenekleri */
select.form-control option,
select.form-select option {
    color: var(--gray-900) !important;
    background-color: var(--white) !important;
    padding: 0.5rem;
}

/* Seçili option */
select.form-control option:checked,
select.form-select option:checked {
    background-color: var(--primary) !important;
    color: var(--white) !important;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.2rem rgba(67, 97, 238, 0.25);
    outline: none;
}

/* Floating Labels */
.form-floating {
    position: relative;
}

.form-floating label {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-lg);
    font-size: 1rem;
    color: var(--gray-600);
    pointer-events: none;
    transition: all var(--transition-base);
    background-color: var(--white);
    padding: 0 var(--spacing-xs);
}

.form-floating .form-control:focus ~ label,
.form-floating .form-control:not(:placeholder-shown) ~ label {
    top: -10px;
    font-size: 0.875rem;
    color: var(--primary);
}

/* Input with Icons */
.input-icon {
    position: relative;
}

.input-icon .feather {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-500);
    pointer-events: none;
}

.input-icon .form-control {
    padding-left: calc(var(--spacing-lg) + 24px);
}

/* ====================================
   6. BUTTONS
   ==================================== */
.btn {
    padding: 0.3rem 0.875rem;
    font-weight: 500;
    font-size: 0.8125rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.btn-sm {
    padding: 0.2rem 0.5rem;
    font-size: 0.75rem;
}

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

.btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-md);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary-dark) 100%);
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, var(--success-hover) 100%);
    color: var(--dark);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, var(--danger-hover) 100%);
    color: var(--white);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning) 0%, var(--warning-hover) 100%);
    color: var(--dark);
}

/* ====================================
   7. PROGRESS BARS & LOADING
   ==================================== */
.progress {
    height: 6px;
    border-radius: var(--radius-full);
    background-color: var(--gray-200);
    overflow: hidden;
}

.progress-bar {
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
    transition: width var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.progress-bar:after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.3) 50%,
        transparent 100%
    );
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Skeleton Loading */
.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-300) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: var(--radius-md);
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-text {
    height: 1rem;
    margin-bottom: var(--spacing-sm);
}

.skeleton-title {
    height: 2rem;
    width: 50%;
    margin-bottom: var(--spacing-md);
}

/* Pulse Animation */
.pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: .5; }
}

/* ====================================
   8. ALERTS
   ==================================== */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    border: none;
    position: relative;
    overflow: hidden;
}

.alert:before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
}

.alert-success {
    background-color: rgba(6, 255, 165, 0.1);
    color: var(--success-hover);
}

.alert-success:before {
    background-color: var(--success);
}

.alert-danger {
    background-color: rgba(255, 0, 110, 0.1);
    color: var(--danger-hover);
}

.alert-danger:before {
    background-color: var(--danger);
}

.alert-warning {
    background-color: rgba(255, 190, 11, 0.1);
    color: var(--warning-hover);
}

.alert-warning:before {
    background-color: var(--warning);
}

.alert-info {
    background-color: rgba(0, 180, 216, 0.1);
    color: var(--info-hover);
}

.alert-info:before {
    background-color: var(--info);
}

/* ====================================
   9. TABLES
   ==================================== */
.table {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.table thead th {
    background: linear-gradient(135deg, var(--dark) 0%, var(--gray-800) 100%);
    color: var(--white);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.05em;
    border: none;
    padding: 0.625rem;
}

.table td {
    font-size: 0.75rem;
    padding: 0.625rem;
}

.table tbody tr {
    transition: all var(--transition-fast);
}

.table tbody tr:hover {
    background-color: var(--gray-100);
    transform: scale(1.01);
}

/* ====================================
   10. UTILITIES & HELPERS
   ==================================== */
.text-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.hover-scale {
    transition: transform var(--transition-base);
}

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

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

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-400);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
}

/* ====================================
   11. ANIMATIONS
   ==================================== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn var(--transition-slow) ease-out;
}

@keyframes slideInLeft {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

.slide-in-left {
    animation: slideInLeft var(--transition-slow) ease-out;
}

/* ====================================
   12. RESPONSIVE
   ==================================== */
@media (max-width: 991.98px) {
    .sidebar {
        margin-left: -200px;
        box-shadow: 2px 0 15px rgba(0, 0, 0, 0.3);
    }
    
    .sidebar.active {
        margin-left: 0;
    }
    
    .content-area-with-sidebar {
        margin-left: 0 !important;
        width: 100% !important;
        padding: 8px;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1.125rem; }
    
    .card {
        margin-bottom: 0.75rem;
    }
    
    .btn {
        padding: 0.25rem 0.75rem;
        font-size: 0.8125rem;
    }
    
    .table {
        font-size: 0.75rem;
    }
    
    .table td, .table th {
        padding: 0.5rem;
    }
    
    .form-control, .form-select {
        padding: 0.375rem 0.5rem;
        font-size: 0.8125rem;
    }
}