/* ========================================
   Kreatifart Muhasebe - Ana Stil Dosyası
   Modern Dark Theme with Glassmorphism
   ======================================== */

/* CSS Custom Properties */
:root {
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.85);
    --bg-card-hover: rgba(30, 41, 59, 0.95);
    --bg-input: rgba(15, 23, 42, 0.9);
    --bg-sidebar: rgba(10, 14, 26, 0.97);

    --border-color: rgba(99, 102, 241, 0.15);
    --border-hover: rgba(99, 102, 241, 0.35);
    --border-focus: rgba(99, 102, 241, 0.6);

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, #6366f1, #8b5cf6);
    --accent-glow: rgba(99, 102, 241, 0.25);

    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.12);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.12);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.12);
    --info: #3b82f6;
    --info-bg: rgba(59, 130, 246, 0.12);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    --shadow-sm: 0 2px 8px rgba(0,0,0,0.15);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.25);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.35);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.15);

    --sidebar-width: 270px;
    --topbar-height: 64px;

    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 15px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    background-image: 
        radial-gradient(ellipse at 20% 50%, rgba(99, 102, 241, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(139, 92, 246, 0.04) 0%, transparent 50%);
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-secondary);
}

/* ========== LOGIN PAGE ========== */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1rem;
    background: var(--bg-primary);
    background-image:
        radial-gradient(ellipse at 30% 40%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 60%, rgba(139, 92, 246, 0.08) 0%, transparent 50%);
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 3rem 2.5rem;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    animation: fadeInUp 0.6s ease-out;
}

.login-logo {
    text-align: center;
    margin-bottom: 2.5rem;
}

.login-logo .logo-icon {
    width: 64px;
    height: 64px;
    background: var(--accent-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
}

.login-logo .logo-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.login-logo h1 {
    font-size: 1.6rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-logo p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

.login-form .form-group {
    margin-bottom: 1.25rem;
}

.login-form label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

.login-form .input-wrapper {
    position: relative;
}

.login-form .input-wrapper svg {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--text-muted);
}

.login-form input[type="text"],
.login-form input[type="password"] {
    width: 100%;
    padding: 0.8rem 1rem 0.8rem 2.8rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    transition: all var(--transition-normal);
    outline: none;
}

.login-form input:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.login-form .btn-login {
    width: 100%;
    padding: 0.85rem;
    background: var(--accent-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition-normal);
    margin-top: 0.5rem;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.login-form .btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(99, 102, 241, 0.45);
}

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

.login-error {
    background: var(--danger-bg);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--danger);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    font-size: 0.85rem;
    text-align: center;
    animation: shake 0.4s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* ========== SIDEBAR ========== */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform var(--transition-slow);
    overflow-y: auto;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 1.25rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--accent-gradient);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 10px rgba(99, 102, 241, 0.3);
    flex-shrink: 0;
}

.logo-icon svg {
    width: 20px;
    height: 20px;
    color: white;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.logo-subtitle {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.sidebar-close {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.4rem;
    border-radius: var(--radius-sm);
    line-height: 0;
}

.sidebar-close:hover {
    background: rgba(255,255,255,0.05);
    color: var(--text-primary);
}

/* Sidebar Nav */
.sidebar-nav {
    flex: 1;
    padding: 1rem 0.75rem;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 1.5rem;
}

.nav-section-title {
    display: block;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--text-muted);
    padding: 0 0.75rem;
    margin-bottom: 0.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.75rem;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 450;
    transition: all var(--transition-fast);
    margin-bottom: 2px;
    position: relative;
    overflow: hidden;
}

.nav-item svg {
    width: 19px;
    height: 19px;
    flex-shrink: 0;
}

.nav-item:hover {
    color: var(--text-primary);
    background: rgba(99, 102, 241, 0.08);
}

.nav-item.active {
    color: white;
    background: var(--accent-gradient);
    font-weight: 500;
    box-shadow: 0 2px 12px rgba(99, 102, 241, 0.3);
}

.nav-item.active svg {
    color: white;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 1rem 0.75rem;
    border-top: 1px solid var(--border-color);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.5rem 0.75rem;
    margin-bottom: 0.5rem;
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.user-avatar svg {
    width: 18px;
    height: 18px;
    color: white;
}

.user-details {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.2;
}

.user-role {
    font-size: 0.72rem;
    color: var(--text-muted);
}

.logout-btn {
    color: var(--danger) !important;
}

.logout-btn:hover {
    background: var(--danger-bg) !important;
}

/* Sidebar Overlay (mobile) */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

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

/* ========== MAIN CONTENT ========== */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.top-bar {
    position: sticky;
    top: 0;
    height: var(--topbar-height);
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0 1.5rem;
    background: rgba(10, 14, 26, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 50;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.4rem;
    border-radius: var(--radius-sm);
    line-height: 0;
}

.menu-toggle:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.05);
}

.page-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.top-bar-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.current-date {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.current-date svg {
    width: 16px;
    height: 16px;
}

.content-wrapper {
    padding: 1.5rem;
}

/* ========== CARDS ========== */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    gap: 1rem;
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.15rem;
}

/* KPI Cards */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.kpi-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.kpi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.kpi-card.income::before { background: var(--success); }
.kpi-card.expense::before { background: var(--danger); }
.kpi-card.net::before { background: var(--accent-primary); }
.kpi-card.tax::before { background: var(--warning); }

.kpi-card:hover {
    transform: translateY(-3px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-md);
}

.kpi-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.kpi-icon svg {
    width: 22px;
    height: 22px;
}

.kpi-card.income .kpi-icon { background: var(--success-bg); color: var(--success); }
.kpi-card.expense .kpi-icon { background: var(--danger-bg); color: var(--danger); }
.kpi-card.net .kpi-icon { background: var(--info-bg); color: var(--info); }
.kpi-card.tax .kpi-icon { background: var(--warning-bg); color: var(--warning); }

.kpi-label {
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.35rem;
}

.kpi-value {
    font-size: 1.55rem;
    font-weight: 800;
    line-height: 1.2;
}

.kpi-card.income .kpi-value { color: var(--success); }
.kpi-card.expense .kpi-value { color: var(--danger); }
.kpi-card.net .kpi-value { color: var(--accent-primary); }
.kpi-card.tax .kpi-value { color: var(--warning); }

/* Charts Grid */
.charts-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.chart-container {
    position: relative;
    height: 300px;
}

/* Summary Grid */
.summary-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

/* ========== TABLES ========== */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-md);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

thead th {
    background: rgba(99, 102, 241, 0.08);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.85rem 1rem;
    text-align: left;
    white-space: nowrap;
    border-bottom: 1px solid var(--border-color);
}

tbody tr {
    border-bottom: 1px solid rgba(99, 102, 241, 0.06);
    transition: background var(--transition-fast);
}

tbody tr:hover {
    background: rgba(99, 102, 241, 0.04);
}

tbody td {
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    white-space: nowrap;
}

td .amount-positive { color: var(--success); font-weight: 600; }
td .amount-negative { color: var(--danger); font-weight: 600; }

/* Status badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.65rem;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
    white-space: nowrap;
}

.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-info { background: var(--info-bg); color: var(--info); }
.badge-default { background: rgba(100,116,139,0.12); color: var(--text-secondary); }

/* Action buttons in tables */
.table-actions {
    display: flex;
    gap: 0.4rem;
}

.btn-icon {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    line-height: 0;
}

.btn-icon svg {
    width: 15px;
    height: 15px;
}

.btn-icon:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.btn-icon.btn-delete:hover {
    background: var(--danger-bg);
    border-color: var(--danger);
    color: var(--danger);
}

/* ========== FORMS ========== */
.form-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.form-card-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.form-card-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1.75rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.form-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.span-2 { grid-column: span 2; }
.form-group.span-3 { grid-column: span 3; }
.form-group.span-full { grid-column: 1 / -1; }

.form-group label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

.form-group label .required {
    color: var(--danger);
    margin-left: 2px;
}

.form-control {
    width: 100%;
    padding: 0.7rem 0.9rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: inherit;
    transition: all var(--transition-normal);
    outline: none;
}

.form-control:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-control::placeholder {
    color: var(--text-muted);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 2.5rem;
}

textarea.form-control {
    resize: vertical;
    min-height: 60px;
}

/* Calculated fields */
.calc-field {
    background: rgba(99, 102, 241, 0.06) !important;
    border-style: dashed !important;
    cursor: not-allowed;
}

.calculated-group label {
    color: var(--accent-primary);
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.7rem 1.5rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
    line-height: 1.2;
}

.btn svg {
    width: 18px;
    height: 18px;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 2px 12px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.45);
}

.btn-secondary {
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(99, 102, 241, 0.18);
    border-color: var(--accent-primary);
}

.btn-danger {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: var(--danger);
}

.btn-success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.btn-success:hover {
    background: rgba(16, 185, 129, 0.2);
    border-color: var(--success);
}

.form-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

/* ========== FILTERS ========== */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: end;
    margin-bottom: 1.25rem;
    padding: 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.filter-bar .form-group {
    min-width: 150px;
    flex: 1;
}

.filter-bar .form-group label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filter-bar .form-control {
    padding: 0.55rem 0.75rem;
    font-size: 0.85rem;
}

.filter-bar .btn {
    padding: 0.55rem 1.25rem;
    align-self: flex-end;
}

/* ========== MODAL ========== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(6px);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    padding: 1rem;
}

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

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 2rem;
    transform: scale(0.95) translateY(20px);
    transition: transform var(--transition-slow);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.modal-title {
    font-size: 1.15rem;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.4rem;
    border-radius: var(--radius-sm);
    line-height: 0;
}

.modal-close:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.05);
}

/* ========== EMPTY STATE ========== */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

.empty-state svg {
    width: 48px;
    height: 48px;
    margin-bottom: 1rem;
    color: var(--text-muted);
    opacity: 0.5;
}

.empty-state p {
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.empty-state .hint {
    font-size: 0.8rem;
}

/* ========== TOAST NOTIFICATIONS ========== */
.toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1.25rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 280px;
    max-width: 400px;
    animation: slideInRight 0.3s ease;
    font-size: 0.88rem;
}

.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--danger); }
.toast.warning { border-left: 3px solid var(--warning); }

.toast svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.toast.success svg { color: var(--success); }
.toast.error svg { color: var(--danger); }
.toast.warning svg { color: var(--warning); }

@keyframes slideInRight {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

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

.fade-in {
    animation: fadeInUp 0.4s ease-out;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1200px) {
    .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .charts-grid {
        grid-template-columns: 1fr;
    }
    .form-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-close {
        display: block;
    }

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

    .menu-toggle {
        display: block;
    }

    .kpi-grid {
        grid-template-columns: 1fr 1fr;
    }

    .form-grid,
    .form-grid-4 {
        grid-template-columns: 1fr;
    }

    .form-group.span-2,
    .form-group.span-3 {
        grid-column: span 1;
    }

    .summary-grid {
        grid-template-columns: 1fr;
    }

    .content-wrapper {
        padding: 1rem;
    }

    .filter-bar {
        flex-direction: column;
    }

    .filter-bar .form-group {
        width: 100%;
    }

    .form-card {
        padding: 1.25rem;
    }

    .form-actions {
        flex-direction: column;
    }

    .top-bar {
        padding: 0 1rem;
    }

    .page-title {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .kpi-grid {
        grid-template-columns: 1fr;
    }

    .login-card {
        padding: 2rem 1.5rem;
    }

    table {
        font-size: 0.78rem;
    }

    thead th,
    tbody td {
        padding: 0.6rem 0.6rem;
    }
}

/* ========== UTILITY ========== */
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-info { color: var(--info); }
.text-muted { color: var(--text-muted); }
.text-right { text-align: right; }
.text-center { text-align: center; }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.mt-1 { margin-top: 1rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 1.5rem; }
.gap-1 { gap: 1rem; }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: rgba(99, 102, 241, 0.2);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(99, 102, 241, 0.4);
}

/* Category type indicators */
.category-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 0.4rem;
}

.category-indicator.sirkete_giren { background: var(--success); }
.category-indicator.sirket_masraflari { background: var(--danger); }
.category-indicator.sirketten_cikan { background: var(--warning); }
.category-indicator.ortaklara_cikan { background: var(--info); }
.category-indicator.ozel_is_gelirleri { background: var(--accent-secondary); }

/* Print styles */
@media print {
    .sidebar,
    .top-bar,
    .sidebar-overlay,
    .form-card,
    .filter-bar .btn,
    .table-actions,
    .toast-container {
        display: none !important;
    }

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

    body {
        background: white;
        color: #333;
    }

    .card {
        background: white;
        border: 1px solid #ddd;
        box-shadow: none;
    }

    table {
        color: #333;
    }

    thead th {
        background: #f5f5f5;
        color: #333;
    }
}