/* assets/css/style.css */
:root {
    --bg-primary: #F5F5F7;
    --bg-card: #FFFFFF;
    --bg-hover: #F0F0F5;
    --text-primary: #1D1D1F;
    --text-secondary: #86868B;
    --accent: #007AFF;
    --accent-hover: #0056CC;
    --success: #34C759;
    --danger: #FF3B30;
    --warning: #FF9500;
    --border: #E5E5EA;
    --shadow-card: 0 2px 12px rgba(0,0,0,0.06);
    --font-family: -apple-system, 'SF Pro Display', 'Inter', 'Helvetica Neue', sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s;
}

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

/* Layout */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.container-fluid {
    width: 100%;
    padding: 20px;
}

/* Navigation */
.navbar {
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    padding: 0 20px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-brand {
    font-weight: 600;
    font-size: 18px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.navbar-nav {
    display: flex;
    gap: 20px;
    list-style: none;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 8px;
    transition: all 0.2s;
}

.nav-link:hover, .nav-link.active {
    color: var(--accent);
    background-color: rgba(0, 122, 255, 0.1);
}

.nav-badge {
    background-color: var(--danger);
    color: white;
    border-radius: 50%;
    padding: 2px 6px;
    font-size: 12px;
    margin-left: 4px;
}

/* Cards */
.card {
    background: var(--bg-card);
    border-radius: 12px;
    box-shadow: var(--shadow-card);
    padding: 24px;
    margin-bottom: 24px;
}

.card-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    outline: none;
}

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

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
}

.btn-success { background-color: var(--success); color: white; }
.btn-danger { background-color: var(--danger); color: white; }
.btn-warning { background-color: var(--warning); color: white; }
.btn-outline {
    background-color: transparent;
    border: 1px solid var(--border);
    color: var(--text-primary);
}
.btn-outline:hover {
    background-color: var(--bg-hover);
}
.btn-sm { padding: 6px 12px; font-size: 13px; }

/* Forms */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    font-size: 14px;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-family: var(--font-family);
    font-size: 14px;
    transition: border-color 0.2s, box-shadow 0.2s;
    background-color: #FAFAFA;
}

.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.2);
    outline: none;
    background-color: #FFF;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 40px;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    border-radius: 12px;
    border: 1px solid var(--border);
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    background: var(--bg-card);
}

.table th, .table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.table th {
    background-color: #F9F9FB;
    font-weight: 600;
    color: var(--text-secondary);
    position: sticky;
    top: 0;
    z-index: 10;
}

.table tbody tr {
    transition: background-color 0.15s;
}

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

/* Plan Matrix Specific */
.plan-matrix {
    white-space: nowrap;
}
.plan-matrix th, .plan-matrix td {
    border: 1px solid var(--border);
}
.plan-matrix .sticky-col {
    position: sticky;
    left: 0;
    background: var(--bg-card);
    z-index: 5;
}
.plan-matrix th.sticky-col {
    z-index: 15;
}
.plan-matrix input.edit-cell {
    width: 100px;
    padding: 6px;
    border: 1px solid var(--accent);
    border-radius: 4px;
}

/* Status Rows */
.status-row-green { background-color: rgba(52, 199, 89, 0.05); }
.status-row-yellow { background-color: rgba(255, 149, 0, 0.05); }
.status-row-red { background-color: rgba(255, 59, 48, 0.05); }

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
}
.badge-secondary { background: #E5E5EA; color: #1D1D1F; }
.badge-primary { background: rgba(0, 122, 255, 0.1); color: var(--accent); }
.badge-success { background: rgba(52, 199, 89, 0.1); color: var(--success); }
.badge-danger { background: rgba(255, 59, 48, 0.1); color: var(--danger); }
.badge-warning { background: rgba(255, 149, 0, 0.1); color: var(--warning); }
.badge-info { background: rgba(90, 200, 250, 0.1); color: #007AFF; }

/* Dashboard */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.kpi-card {
    padding: 20px;
    display: flex;
    flex-direction: column;
}

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

.kpi-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.chart-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
}

@media (max-width: 992px) {
    .chart-grid { grid-template-columns: 1fr; }
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(4px);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    border-radius: 16px;
    width: 100%;
    max-width: 500px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    animation: modalIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalIn {
    from { opacity: 0; transform: translateY(20px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

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

.modal-body { padding: 24px; }
.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

.close-btn {
    background: none; border: none; font-size: 24px; cursor: pointer; color: var(--text-secondary);
}

/* Login Specific */
.login-page {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #F5F5F7 0%, #E5E5EA 100%);
}

.login-card {
    width: 100%;
    max-width: 400px;
    padding: 40px;
    text-align: center;
}

.login-logo {
    width: 64px;
    height: 64px;
    background: var(--accent);
    color: white;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: bold;
    margin: 0 auto 24px;
}