/* ===== MINIMALIST & MODERN CSS ===== */
:root {
    --primary: #14B8A6;
    --primary-dark: #0F766E;
    --primary-light: #A7F3D0;
    --secondary: #64748b;
    --success: #22C55E;
    --warning: #EA580C;
    --info: #0891b2;
    --background: #F8FAFC;
    --surface: #FFFFFF;
    --text: #0F172A;
    --text-light: #64748B;
    --border: #E2E8F0;
    --shadow: 0 8px 24px rgba(20, 184, 166, 0.18);
    --shadow-md: 0 12px 28px rgba(20, 184, 166, 0.22);
    --shadow-lg: 0 16px 40px rgba(20, 184, 166, 0.26);
    --radius: 20px;
    --radius-lg: 28px;
    --glass: rgba(236, 254, 255, 0.75);
    --hero-grad: linear-gradient(180deg, #ECFEFF 0%, #F8FAFC 100%);
}

/* ===== GENEL STİLLER ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--background);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

.wrap, .container {
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    padding-left: 16px;
    padding-right: 16px;
}
@media (min-width: 576px) {
    .wrap, .container { max-width: 540px; }
}
@media (min-width: 768px) {
    .wrap, .container { max-width: 720px; }
}
@media (min-width: 992px) {
    .wrap, .container { max-width: 960px; }
}
@media (min-width: 1200px) {
    .wrap, .container { max-width: 1140px; }
}
@media (min-width: 1400px) {
    .wrap, .container { max-width: 1320px; }
}

.container-sm { width: 100%; max-width: 540px; }
.container-md { width: 100%; max-width: 720px; }
.container-lg { width: 100%; max-width: 960px; }
.container-xl { width: 100%; max-width: 1140px; }

.row { display: flex; flex-wrap: wrap; margin-left: -8px; margin-right: -8px; }
[class^="col"], [class*=" col"] { padding-left: 8px; padding-right: 8px; }
.col-12 { flex: 0 0 100%; max-width: 100%; }
@media (min-width: 768px) {
    .col-md-6 { flex: 0 0 50%; max-width: 50%; }
    .col-md-12 { flex: 0 0 100%; max-width: 100%; }
}


/* Menü overlay ve kaydırma kilidi */
.menu-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.35); opacity: 0; pointer-events: none; transition: opacity 0.2s ease; }
.no-scroll { overflow: hidden; }

/* ===== ANA SAYFA STİLLERİ ===== */
header.hero {
    text-align: center;
    margin-bottom: 48px;
    padding: 48px 16px;
    background: var(--hero-grad);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

header h1 {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
    letter-spacing: -0.025em;
}

header p {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.box {
    background: var(--glass);
    backdrop-filter: blur(12px);
    border-radius: var(--radius-lg);
    padding: 0;
    box-shadow: var(--shadow);
    border: 1px solid rgba(20, 184, 166, 0.18);
    transition: all 0.2s ease;
    overflow: hidden;
}

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

.box-header {
    background: transparent;
    color: var(--text);
    padding: 24px;
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.box-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--primary);
    color: white;
}

.badge-secondary { background: var(--secondary); }
.badge-warning { background: var(--warning); }
.badge-success { background: var(--success); }
.badge-info { background: var(--info); }

.box-content {
    padding: 24px;
}

.result-card {
    background: var(--glass);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(20, 184, 166, 0.18);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow);
    margin: 20px 0;
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
}

.value-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.value-item .label {
    color: var(--text-light);
    font-size: 0.9rem;
}

.value-item .value {
    color: var(--text);
    font-weight: 600;
    font-size: 1rem;
}

.box-content p {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.calculation-form {
    margin-top: 16px;
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

label {
    font-weight: 500;
    color: var(--text);
    margin-bottom: 8px;
    display: block;
    font-size: 0.875rem;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="date"],
.form-group input[type="time"],
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 16px;
    transition: all 0.2s ease;
    background: var(--surface);
    color: var(--text);
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group input[type="password"]:focus,
.form-group input[type="date"]:focus,
.form-group input[type="time"]:focus,
.form-group select:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

input[type="number"] {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 16px;
    transition: all 0.2s ease;
    background: var(--surface);
    color: var(--text);
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type="number"] {
    -moz-appearance: textfield;
}

input[type="number"]:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

small {
    display: block;
    margin-top: 4px;
    color: var(--text-light);
    font-size: 0.75rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
    text-align: center;
}

.btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25);
}

.btn-primary {
    background: linear-gradient(135deg, #2DD4BF 0%, #14B8A6 60%, #0F766E 100%);
    color: white;
}

.btn-primary:hover {
    filter: brightness(1.05);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

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

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

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

.btn-icon {
    font-size: 1.1em;
}

.quick-access .box-content {
    padding: 20px;
}

.quick-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
}

footer {
    text-align: center;
    color: var(--text-light);
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.footer-content p {
    margin-bottom: 4px;
    font-size: 0.875rem;
}

/* ===== HESAPLAMA SAYFALARI ===== */
.result-header {
    background: var(--surface);
    color: var(--text);
    padding: 24px;
    border-radius: var(--radius-lg);
    margin-bottom: 32px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.result-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
    text-align: center;
}

.result-values {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.value-box {
    background: var(--background);
    padding: 16px;
    border-radius: var(--radius);
    font-weight: 600;
    text-align: center;
    border: 1px solid var(--border);
}

.table-container {
    overflow-x: auto;
    margin: 24px 0;
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.scroll-pane {
    max-height: 80vh;
    overflow: auto;
    -webkit-overflow-scrolling: touch;
}

.pagination {
    display: flex;
    gap: 8px;
    justify-content: center;
    align-items: center;
    margin: 12px 0 4px;
}

.pagination .btn {
    padding: 8px 12px;
    font-size: 14px;
}

.group-section {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin: 12px 0;
}

.group-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--background);
    cursor: pointer;
}

.group-body {
    display: none;
}

.group-section.open .group-body {
    display: block;
}

.loading {
    text-align: center;
    padding: 12px;
    color: var(--text-light);
    font-size: 0.9rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

th {
    background: var(--background);
    color: var(--text);
    padding: 16px;
    text-align: center;
    font-weight: 600;
    border-bottom: 2px solid var(--border);
    font-size: 0.875rem;
    position: sticky;
    top: 0;
    z-index: 2;
}

td {
    padding: 16px;
    border-bottom: 1px solid var(--border);
    text-align: center;
    font-size: 0.875rem;
    transition: background-color 0.2s ease;
}

tr:hover {
    background: var(--background);
}

.highlight-row {
    background: #fef3c7 !important;
    font-weight: 600;
}

.total-row {
    background: #d1fae5 !important;
    font-weight: 600;
}

.cost-row {
    background: #e0f2fe !important;
    font-weight: 600;
}

.action-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin: 32px 0;
}

.calculation-info {
    padding: 16px;
    border-radius: var(--radius);
    margin: 24px 0;
    font-weight: 500;
    background: var(--background);
    border-left: 4px solid var(--primary);
    color: var(--text);
}

/* ===== TİP RENKLERİ ===== */
.type-1s1h { border-left-color: var(--primary); }
.type-2s2h { border-left-color: var(--warning); }
.type-1s2h { border-left-color: var(--success); }
.type-ozel { border-left-color: #8b5cf6; }
.type-panel { border-left-color: var(--info); }

/* ===== ADMIN PANELİ ===== */
.admin-header {
    background: var(--surface);
    color: var(--text);
    padding: 32px;
    border-radius: var(--radius-lg);
    margin-bottom: 32px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    text-align: center;
}

.admin-nav {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.nav-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--border);
    padding-bottom: 16px;
}

.nav-tab {
    padding: 12px 20px;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s ease;
    font-size: 0.875rem;
    border: none;
}

.nav-tab:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25);
}

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

.nav-tab:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.tab-content {
    display: none;
    background: var(--surface);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

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

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.form-section {
    background: var(--background);
    padding: 20px;
    border-radius: var(--radius);
    border-left: 4px solid var(--primary);
}

.form-section h4 {
    margin-top: 0;
    color: var(--text);
    margin-bottom: 16px;
    font-size: 1rem;
}

.admin-form-group {
    margin-bottom: 16px;
}

.admin-form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text);
    font-size: 0.875rem;
}

.admin-form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    background: var(--surface);
}

.admin-form-group input:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.btn-save {
    background: var(--success);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn-save:hover {
    background: #047857;
    transform: translateY(-1px);
}

.status-message {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin: 16px 0;
    display: none;
    font-size: 0.875rem;
}

.status-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.status-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.system-status {
    margin-bottom: 20px;
    padding: 12px 16px;
    border-radius: var(--radius);
    background: #f0f9ff;
    border: 1px solid #bae6fd;
    font-size: 0.875rem;
    text-align: center;
}

.health-status {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.health-healthy {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.health-unhealthy {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.excel-preview {
    background: var(--surface);
    color: var(--text);
    padding: 15px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    max-height: 300px;
    overflow-y: auto;
    margin-top: 20px;
}

/* ===== PANEL ÖNERİ BUTONLARI ===== */
.panel-suggestions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
    margin: 16px 0;
}

.panel-suggestion {
    background: var(--background);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid var(--border);
    color: var(--text);
}

.panel-suggestion:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* ===== ANİMASYONLAR ===== */
@keyframes fadeIn {
    from { 
        opacity: 0; 
        transform: translateY(8px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

.box {
    animation: fadeIn 0.4s ease-out;
}

/* ===== MOBILE FIRST TASARIM ===== */
@media (min-width: 640px) {
    .wrap {
        padding: 24px;
    }
    
    .form-row {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }
    
    .quick-buttons {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
        gap: 12px;
    }
    
    .action-buttons {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }
    
    .btn {
        width: auto;
    }
}

@media (min-width: 768px) {
    header h1 {
        font-size: 2.5rem;
    }
    
    .container {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
        gap: 32px;
    }
    
    .result-values {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }
    
    .result-header h1 {
        font-size: 1.75rem;
    }
}

@media (min-width: 1024px) {
    .wrap {
        padding: 32px;
    }
    
    .container {
        grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    }
}

/* ===== YAZDIRMA STİLLERİ ===== */
@media print {
    body {
        background: white !important;
        color: black !important;
    }
    
    .result-header {
        background: white !important;
        color: black !important;
        box-shadow: none !important;
        border: 1px solid #ccc !important;
    }
    
    .action-buttons,
    .calculation-info,
    footer {
        display: none !important;
    }
    
    .table-container {
        box-shadow: none !important;
        border: 1px solid #ccc !important;
    }
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }
.p-20 { padding: 20px; }
.hidden { display: none; }
.visible { display: block; }

/* ===== NOTIFICATION ===== */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 16px 20px;
    border-radius: var(--radius);
    color: white;
    font-weight: 500;
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease-out;
    max-width: 400px;
}

.notification button {
    background: none;
    border: none;
    color: white;
    font-size: 18px;
    cursor: pointer;
    padding: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}
.input-with-icon {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 8px 12px;
}

.input-with-icon .icon {
    font-size: 1.1rem;
    color: var(--primary-dark);
}

.input-with-icon input[type="number"],
.input-with-icon input[type="text"] {
    border: none;
    padding: 10px 8px;
    width: 100%;
    font-size: 16px;
    background: transparent;
}

.input-with-icon input:focus {
    outline: none;
}
/* Header & Mobile Menu */
.app-header{position:sticky;top:0;z-index:1000;display:flex;align-items:center;justify-content:space-between;height:48px;padding:0 12px;background:var(--surface);border-bottom:1px solid var(--border);}
.brand{display:inline-flex;flex-direction:row;align-items:center;gap:8px;font-weight:700;color:var(--text);text-decoration:none}
.brand-logo{height:24px;width:auto;margin-right:8px;margin-bottom:0;vertical-align:middle}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:6px 10px;border-radius:var(--radius);background:var(--background);color:var(--text);border:1px solid var(--border);text-decoration:none}
.nav-links a:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.nav-links summary{padding:6px 10px;border-radius:var(--radius);background:var(--background);color:var(--text);border:1px solid var(--border);cursor:pointer;list-style:none}
.nav-links summary:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.nav-dropdown summary::-webkit-details-marker{display:none}
.nav-dropdown summary::after{content:'▾';margin-left:6px;font-size:12px}
.nav-dropdown{position:relative}
.nav-dropdown .dropdown-menu{position:absolute;top:calc(100% + 6px);left:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:8px;display:none;box-shadow:var(--shadow);min-width:180px}
.nav-dropdown[open] .dropdown-menu{display:block}
.nav-dropdown .dropdown-menu a{display:block;margin:2px 0;padding:6px 8px;border-radius:6px}
.nav-dropdown .dropdown-menu a:hover{background:var(--background)}
.hamburger{display:none;background:var(--background);border:1px solid var(--border);border-radius:var(--radius);padding:8px 12px;font-size:20px;cursor:pointer}
.menu-overlay.open{opacity:1;pointer-events:auto}
@media (max-width:768px){
  .nav-links{position:fixed;top:0;left:0;height:100vh;width:80vw;max-width:320px;background:var(--surface);border-right:1px solid var(--border);transform:translateX(-100%);transition:transform .3s ease;z-index:1300;display:flex;flex-direction:column;padding:16px;box-shadow:8px 0 24px rgba(0,0,0,.12)}
  .nav-links.open{transform:translateX(0)}
  .nav-links a{display:block;width:100%;margin-bottom:8px}
  .nav-links summary{display:block;width:100%;margin-bottom:8px}
  .nav-dropdown .dropdown-menu{position:static;box-shadow:none;padding:0;border:none;min-width:0}
  .hamburger{display:inline-block}
}

@media (min-width:769px){
  .nav-links a, .nav-links summary{background:transparent;border-color:transparent}
  .nav-links a:hover, .nav-links summary:hover{background:var(--background);border-color:var(--border)}
}
.table-container .col-sku{white-space:nowrap;font-family:ui-monospace,Consolas,monospace;font-size:13px;max-width:160px;overflow:hidden;text-overflow:ellipsis}