/* ===== Login Screen ===== */
.login-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    background-image: 
        radial-gradient(ellipse at top, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at bottom right, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
}

.login-screen.hidden {
    display: none;
}

.login-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 60px 50px;
    text-align: center;
    box-shadow: 0 8px 40px rgba(0,0,0,0.5);
    max-width: 400px;
    width: 90%;
}

.login-header h1 {
    font-size: 2rem;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-header p {
    color: #8888a0;
    margin-bottom: 40px;
    font-size: 0.95rem;
}

.login-content {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.login-error {
    color: #ef4444;
    font-size: 0.9rem;
    margin-top: 20px;
    display: none;
    padding: 12px;
    background: rgba(239, 68, 68, 0.1);
    border-radius: 8px;
}

.login-error.show {
    display: block;
}

#appContainer.hidden {
    display: none;
}

/* ===== CSS Variables & Theme ===== */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a24;
    --bg-hover: #22222e;
    --border-color: #2a2a3a;
    --text-primary: #f0f0f5;
    --text-secondary: #8888a0;
    --text-muted: #555566;
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --cost-color: #f87171;
    --profit-color: #34d399;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'JetBrains Mono', monospace;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    text-transform: uppercase;
    background-image: 
        radial-gradient(ellipse at top, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at bottom right, rgba(139, 92, 246, 0.08) 0%, transparent 50%);
}

/* ===== App Container ===== */
.app-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 20px;
}

/* ===== Header ===== */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    margin-bottom: 20px;
    box-shadow: var(--shadow-md);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.header-left h1 {
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
}

.header-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

.live-clock {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    background: var(--bg-secondary);
    padding: 10px 20px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: 1px;
}

.week-indicator {
    background: var(--accent-gradient);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: white;
}

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

/* ===== Buttons ===== */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: var(--bg-hover);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-color);
}

.btn-settings {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

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

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

/* ===== Week Navigation ===== */
.week-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.week-btn {
    padding: 10px 20px;
    background: var(--bg-hover);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.week-btn:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

.week-dates {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===== Stats Cards ===== */
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-primary);
}

.stat-card.profit-share {
    background: linear-gradient(135deg, rgba(52, 211, 153, 0.1) 0%, rgba(16, 185, 129, 0.2) 100%);
    border-color: var(--profit-color);
}

.stat-card.profit-share .stat-value {
    color: var(--profit-color);
}

.stat-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-hover);
    border-radius: var(--radius-md);
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ===== Table ===== */
.table-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.records-table {
    width: 100%;
    border-collapse: collapse;
}

.records-table th {
    background: var(--bg-secondary);
    padding: 16px 12px;
    text-align: left;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
}

.records-table td {
    padding: 16px 12px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
    vertical-align: middle;
}

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

.records-table tbody tr:hover {
    background: var(--bg-hover);
}

.records-table tbody tr:last-child td {
    border-bottom: none;
}

.record-number {
    font-weight: 700;
    color: var(--accent-primary);
    font-size: 1rem;
}

.record-date {
    font-size: 0.85rem;
    color: var(--text-secondary);
    white-space: nowrap;
}

.device-info {
    max-width: 200px;
}

.operations-list {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.operation-tag {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
}

.operation-tag.cost {
    background: rgba(248, 113, 113, 0.2);
    color: var(--cost-color);
}

.operation-tag.profit {
    background: rgba(52, 211, 153, 0.2);
    color: var(--profit-color);
}

.technician-badge {
    display: inline-block;
    padding: 6px 12px;
    background: var(--bg-hover);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-primary);
}

.price-cost {
    color: var(--cost-color);
    font-weight: 600;
}

.price-profit {
    color: var(--profit-color);
    font-weight: 600;
}

.price-total {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.action-btns {
    display: flex;
    gap: 8px;
}

.action-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-hover);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
}

.action-btn:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

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

/* ===== Empty State ===== */
.empty-state {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    text-align: center;
}

.empty-state.show {
    display: flex;
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-state p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

/* ===== Modal ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.show {
    display: flex;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 700px;
    max-height: 95vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

/* Kompakt modal için */
.modal-content.compact .modal-body {
    padding: 16px;
}

.modal-content.compact .form-group {
    margin-bottom: 12px;
}

.modal-content.compact .form-group label {
    margin-bottom: 4px;
    font-size: 0.8rem;
}

.modal-content.compact .form-group input {
    padding: 10px 12px;
    font-size: 0.9rem;
}

.modal-content.compact .form-section {
    margin: 12px 0;
    padding: 12px;
}

.modal-content.compact .form-section h3 {
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.modal-content.compact .operation-btn {
    padding: 6px 10px;
    font-size: 0.75rem;
}

.modal-content.compact .selected-item {
    padding: 6px 10px;
    font-size: 0.8rem;
}

.modal-content.compact .totals-preview {
    margin-top: 12px;
    padding: 12px;
}

.modal-content.compact .total-item {
    padding: 4px 0;
    font-size: 0.85rem;
}

.modal-content.compact .total-grand {
    font-size: 1rem;
    padding-top: 8px;
}

/* İki sütunlu form */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.form-row .form-group {
    margin-bottom: 0;
}

/* Üç sütunlu form */
.form-row-3 {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 12px;
    margin-bottom: 12px;
}

.form-row-3 .form-group {
    margin-bottom: 0;
}

/* Dört sütunlu form */
.form-row-4 {
    display: grid;
    grid-template-columns: 1fr 1.5fr 1.5fr 1fr;
    gap: 12px;
    margin-bottom: 12px;
}

.form-row-4 .form-group {
    margin-bottom: 0;
}

/* Date input styling */
input[type="date"] {
    padding: 10px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
}

input[type="date"]:focus {
    outline: none;
    border-color: var(--accent-primary);
}

input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(1);
    cursor: pointer;
}

/* Maliyet ve Kar yan yana */
.operations-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.operations-row .form-section {
    margin: 0;
}

/* Kompakt custom entry */
.custom-entry-compact {
    display: grid;
    grid-template-columns: 1fr 80px 80px 60px;
    gap: 6px;
    margin-top: 8px;
}

.custom-entry-compact input {
    padding: 8px 10px;
    font-size: 0.8rem;
}

.custom-entry-compact .btn {
    padding: 8px 10px;
    font-size: 0.8rem;
}

.modal-large {
    max-width: 800px;
}

.modal-xlarge {
    max-width: 1100px;
}

@keyframes slideUp {
    from { 
        opacity: 0;
        transform: translateY(20px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 1.3rem;
    font-weight: 600;
}

.modal-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-hover);
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--danger);
    color: white;
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 20px 24px;
    border-top: 1px solid var(--border-color);
}

/* ===== Form Elements ===== */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input[type="text"],
.form-group input[type="number"] {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

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

.technician-options {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.technician-option {
    display: none;
}

.technician-label {
    display: inline-flex;
    align-items: center;
    padding: 10px 20px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
}

.technician-option:checked + .technician-label {
    background: var(--accent-gradient);
    border-color: var(--accent-primary);
    color: white;
}

.technician-label:hover {
    border-color: var(--accent-primary);
}

/* Kompakt teknisyen seçimi */
.modal-content.compact .technician-options {
    gap: 6px;
}

.modal-content.compact .technician-label {
    padding: 6px 12px;
    font-size: 0.8rem;
}

/* ===== Form Sections ===== */
.form-section {
    margin: 24px 0;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.form-section h3 {
    font-size: 1rem;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.operation-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.operation-btn {
    padding: 10px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.operation-btn:hover {
    border-color: var(--accent-primary);
}

.operation-btn.cost:hover,
.operation-btn.cost.selected {
    background: rgba(248, 113, 113, 0.2);
    border-color: var(--cost-color);
    color: var(--cost-color);
}

.operation-btn.profit:hover,
.operation-btn.profit.selected {
    background: rgba(52, 211, 153, 0.2);
    border-color: var(--profit-color);
    color: var(--profit-color);
}

.selected-operations {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.selected-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}

.selected-item .name {
    flex: 1;
}

.selected-item .price {
    font-weight: 600;
    margin-right: 12px;
}

.selected-item .price.cost {
    color: var(--cost-color);
}

.selected-item .price.profit {
    color: var(--profit-color);
}

.selected-item .remove-btn {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-hover);
    border: none;
    border-radius: 4px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.selected-item .remove-btn:hover {
    background: var(--danger);
    color: white;
}

/* ===== Custom Entry ===== */
.custom-entry {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr auto;
    gap: 10px;
    margin-top: 12px;
}

.custom-entry input {
    padding: 10px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
}

.custom-entry input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.custom-entry .btn {
    padding: 10px 16px;
}

/* ===== Totals Preview ===== */
.totals-preview {
    margin-top: 24px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.total-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.total-item:not(:last-child) {
    border-bottom: 1px solid var(--border-color);
}

.total-grand {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    padding-top: 12px;
}

.total-grand span:last-child {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Settings Tabs ===== */
.settings-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent-primary);
}

.tab-btn.active {
    background: var(--accent-gradient);
    border-color: var(--accent-primary);
    color: white;
}

.tab-content {
    animation: fadeIn 0.3s ease;
}

.tab-content.hidden {
    display: none;
}

.settings-section {
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.settings-section h3 {
    margin-bottom: 16px;
    font-size: 1rem;
    color: var(--text-primary);
}

.add-item-row {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.add-item-row input {
    flex: 1;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
}

.add-item-row input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.items-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.item-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
}

.item-row .item-name {
    flex: 1;
}

.item-row .item-price {
    font-weight: 600;
    color: var(--accent-primary);
    margin-right: 16px;
}

.item-row .delete-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.item-row .delete-btn:hover {
    background: var(--danger);
    border-color: var(--danger);
    color: white;
}

/* Fiyat düzenleme */
.item-price-edit {
    display: flex;
    align-items: center;
    margin-right: 12px;
}

.price-input {
    width: 80px;
    padding: 6px 10px;
    background: var(--bg-secondary);
    border: 1px solid var(--accent-primary);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    text-align: right;
}

.price-input:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.3);
}

.item-actions {
    display: flex;
    gap: 6px;
}

.edit-btn, .save-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
}

.edit-btn {
    color: var(--text-secondary);
}

.edit-btn:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

.save-btn {
    color: var(--success);
    border-color: var(--success);
}

.save-btn:hover {
    background: var(--success);
    color: white;
}

.hidden {
    display: none !important;
}

.help-text {
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

#connectionStatus {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}

#connectionStatus.success {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

#connectionStatus.error {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

/* ===== Loading Overlay ===== */
.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 20px;
}

.loading-overlay.show {
    display: flex;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== Toast ===== */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 14px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 3000;
    opacity: 0;
    transition: all 0.3s ease;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast.success {
    border-color: var(--success);
    background: rgba(16, 185, 129, 0.1);
}

.toast.error {
    border-color: var(--danger);
    background: rgba(239, 68, 68, 0.1);
}

/* ===== Search Bar ===== */
.search-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.search-input {
    flex: 1;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-select {
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    cursor: pointer;
}

.search-select:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.highlight {
    background: rgba(99, 102, 241, 0.3);
    padding: 1px 3px;
    border-radius: 3px;
}

/* ===== Statistics Modal ===== */
.period-selector {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.period-btn {
    padding: 12px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.period-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent-primary);
}

.period-btn.active {
    background: var(--accent-gradient);
    border-color: var(--accent-primary);
    color: white;
}

.period-info {
    text-align: center;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 1rem;
    color: var(--text-secondary);
}

.stats-table-container {
    overflow-x: auto;
    margin-bottom: 30px;
}

.stats-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.stats-table th {
    background: var(--bg-card);
    padding: 14px 12px;
    text-align: left;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
}

.stats-table td {
    padding: 14px 12px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
}

.stats-table tbody tr:hover {
    background: var(--bg-hover);
}

.stats-table tfoot td {
    background: var(--bg-card);
    font-weight: 700;
    border-top: 2px solid var(--accent-primary);
}

.stats-table .tech-name {
    font-weight: 600;
    color: var(--accent-primary);
}

.stats-table .stat-cost {
    color: var(--cost-color);
}

.stats-table .stat-profit {
    color: var(--profit-color);
}

.stats-table .stat-revenue {
    color: var(--text-primary);
    font-weight: 600;
}

.stats-table .stat-share {
    color: var(--success);
    font-weight: 700;
}

/* Charts */
.charts-section {
    margin-top: 20px;
}

.charts-section h3 {
    margin-bottom: 16px;
    color: var(--text-primary);
}

.chart-container {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 20px;
    min-height: 200px;
}

.chart-bar-group {
    display: flex;
    align-items: flex-end;
    gap: 30px;
    justify-content: center;
    height: 180px;
    padding: 20px 0;
}

.chart-bar-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.chart-bar {
    width: 60px;
    background: var(--accent-gradient);
    border-radius: 4px 4px 0 0;
    transition: all 0.3s ease;
    position: relative;
    min-height: 10px;
}

.chart-bar:hover {
    opacity: 0.8;
}

.chart-bar-value {
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
}

.chart-bar-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-align: center;
    max-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ===== Responsive ===== */

/* Tablet */
@media (max-width: 1024px) {
    .app-container {
        padding: 10px;
    }
    
    .header {
        padding: 15px 20px;
    }
    
    .header-left h1 {
        font-size: 1.4rem;
    }
    
    .live-clock {
        font-size: 0.9rem;
        padding: 8px 12px;
    }
    
    .stats-container {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }
    
    .stat-card {
        padding: 12px;
    }
    
    .stat-icon {
        width: 45px;
        height: 45px;
        font-size: 1.5rem;
    }
    
    .stat-value {
        font-size: 1.2rem;
    }
}

/* Mobil - Geniş */
@media (max-width: 768px) {
    .app-container {
        padding: 8px;
    }
    
    /* Header Mobil */
    .header {
        flex-direction: column;
        gap: 12px;
        padding: 12px 15px;
        text-align: center;
    }

    .header-left {
        flex-direction: column;
        gap: 8px;
    }
    
    .header-left h1 {
        font-size: 1.2rem;
    }
    
    .header-center {
        order: -1;
        width: 100%;
    }
    
    .live-clock {
        font-size: 0.85rem;
        padding: 6px 12px;
    }

    .header-right {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .header-right .btn {
        padding: 8px 12px;
        font-size: 0.8rem;
    }
    
    .week-indicator {
        font-size: 0.75rem;
        padding: 4px 10px;
    }

    /* Hafta Navigasyonu */
    .week-nav {
        flex-direction: column;
        gap: 10px;
        padding: 12px;
    }
    
    .week-btn {
        width: 100%;
        padding: 10px;
    }
    
    .week-dates {
        font-size: 0.95rem;
        text-align: center;
    }

    /* İstatistik Kartları */
    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    
    .stat-card {
        padding: 10px;
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }
    
    .stat-icon {
        width: 40px;
        height: 40px;
        font-size: 1.3rem;
    }
    
    .stat-value {
        font-size: 1.1rem;
    }
    
    .stat-label {
        font-size: 0.75rem;
    }

    /* Arama Çubuğu */
    .search-bar {
        flex-direction: column;
        gap: 8px;
        padding: 10px;
    }
    
    .search-input {
        width: 100%;
        padding: 10px 12px;
    }
    
    .search-select {
        width: 100%;
        padding: 10px 12px;
    }

    /* Tablo - Mobil Yatay Kaydırma */
    .table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .records-table {
        min-width: 900px;
    }
    
    .records-table th,
    .records-table td {
        padding: 10px 8px;
        font-size: 0.8rem;
        white-space: nowrap;
    }

    /* Modal */
    .modal {
        padding: 10px;
    }
    
    .modal-content {
        margin: 0;
        max-height: calc(100vh - 20px);
        border-radius: var(--radius-md);
    }
    
    .modal-header {
        padding: 15px;
    }
    
    .modal-header h2 {
        font-size: 1.1rem;
    }
    
    .modal-body {
        padding: 15px;
    }
    
    .modal-footer {
        padding: 15px;
        flex-direction: column;
    }
    
    .modal-footer .btn {
        width: 100%;
    }

    .modal-content.compact {
        margin: 0;
        max-height: calc(100vh - 20px);
    }
    
    .modal-content.compact .modal-body {
        padding: 12px;
    }

    /* Form Elemanları */
    .form-row,
    .form-row-3,
    .form-row-4,
    .operations-row {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .form-group input[type="text"],
    .form-group input[type="number"] {
        padding: 12px;
        font-size: 16px; /* iOS zoom engellemek için */
    }
    
    input[type="date"] {
        font-size: 16px;
        padding: 12px;
    }
    
    .technician-options {
        gap: 6px;
    }
    
    .technician-label {
        padding: 8px 14px;
        font-size: 0.85rem;
    }

    .custom-entry {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .custom-entry-compact {
        grid-template-columns: 1fr 1fr;
        gap: 6px;
    }

    /* Ayarlar */
    .settings-tabs {
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .tab-btn {
        flex: 1;
        min-width: 80px;
        padding: 10px;
        font-size: 0.8rem;
        text-align: center;
    }
    
    .add-item-row {
        flex-direction: column;
        gap: 8px;
    }
    
    .item-row {
        flex-wrap: wrap;
        gap: 8px;
    }

    /* İstatistikler Modal */
    .period-selector {
        justify-content: center;
    }
    
    .period-btn {
        padding: 8px 12px;
        font-size: 0.8rem;
    }
    
    .stats-table th,
    .stats-table td {
        padding: 10px 8px;
        font-size: 0.8rem;
    }
    
    .chart-bar-group {
        gap: 15px;
        flex-wrap: wrap;
    }
    
    .chart-bar {
        width: 40px;
    }
}

/* Mobil - Dar */
@media (max-width: 480px) {
    .app-container {
        padding: 5px;
    }
    
    .header {
        padding: 10px;
    }
    
    .header-left h1 {
        font-size: 1rem;
    }
    
    .header-right .btn {
        padding: 6px 10px;
        font-size: 0.75rem;
    }
    
    .stats-container {
        grid-template-columns: 1fr 1fr;
        gap: 6px;
    }
    
    .stat-card {
        padding: 8px;
    }
    
    .stat-icon {
        width: 35px;
        height: 35px;
        font-size: 1.1rem;
    }
    
    .stat-value {
        font-size: 1rem;
    }
    
    .stat-label {
        font-size: 0.7rem;
    }
    
    .week-nav {
        padding: 10px;
    }
    
    .week-dates {
        font-size: 0.85rem;
    }

    .btn {
        padding: 10px 14px;
        font-size: 0.85rem;
    }
    
    .modal-header h2 {
        font-size: 1rem;
    }
    
    .form-section {
        padding: 12px;
    }
    
    .form-section h3 {
        font-size: 0.85rem;
    }
    
    .operation-btn {
        padding: 8px 12px;
        font-size: 0.75rem;
    }
    
    .selected-item {
        padding: 8px 10px;
        font-size: 0.8rem;
    }
    
    .totals-preview {
        padding: 12px;
    }
    
    .total-item {
        font-size: 0.85rem;
    }
    
    .total-grand {
        font-size: 1rem;
    }
    
    /* Tablo */
    .records-table {
        min-width: 900px;
    }
    
    .action-btn {
        width: 32px;
        height: 32px;
    }
}

/* Çok dar ekranlar */
@media (max-width: 360px) {
    .stats-container {
        grid-template-columns: 1fr;
    }
    
    .header-right {
        flex-direction: column;
    }
    
    .header-right .btn {
        width: 100%;
    }
    
    .custom-entry-compact {
        grid-template-columns: 1fr;
    }
}

/* Landscape mobil */
@media (max-height: 500px) and (orientation: landscape) {
    .modal-content {
        max-height: 95vh;
    }
    
    .modal-body {
        max-height: 60vh;
        overflow-y: auto;
    }
}

/* Dokunmatik cihazlar için */
@media (hover: none) and (pointer: coarse) {
    .btn:hover {
        transform: none;
    }
    
    .stat-card:hover {
        transform: none;
    }
    
    .records-table tbody tr:hover {
        background: transparent;
    }
    
    /* Daha büyük dokunma alanları */
    .action-btn {
        min-width: 44px;
        min-height: 44px;
    }
    
    .week-btn {
        min-height: 44px;
    }
    
    .tab-btn {
        min-height: 44px;
    }
}