/* ============================================
   Waaha DSS - Premium Design System
   Smart Irrigation Management Platform
   ============================================ */

/* ---- CSS Variables ---- */
:root {
    --primary: #0e918c;
    --primary-dark: #0a6e6a;
    --primary-light: #12b5af;
    --primary-rgb: 14, 145, 140;
    --secondary: #5dbe28;
    --secondary-dark: #4a9820;
    --secondary-light: #7ad44a;
    --accent: #1a5276;
    --accent-light: #2471a3;

    --sidebar-bg: linear-gradient(180deg, #0a3d3b 0%, #0a6e6a 50%, #0e918c 100%);
    --sidebar-width: 260px;

    --bg-body: #f0f7f6;
    --bg-card: #ffffff;
    --bg-sidebar-hover: rgba(255,255,255,0.08);
    --bg-sidebar-active: rgba(255,255,255,0.15);

    --text-primary: #1a2332;
    --text-secondary: #5a6a7e;
    --text-muted: #8a9ab5;
    --text-sidebar: rgba(255,255,255,0.75);
    --text-sidebar-active: #ffffff;

    --border-color: #e2ebe9;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --shadow-card: 0 2px 8px rgba(14,145,140,0.06);

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
}

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

body {
    font-family: 'Inter', 'Segoe UI', sans-serif;
    background: var(--bg-body);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    font-size: 0.9rem;
}

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

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-dark); }

/* ============================================
   SIDEBAR
   ============================================ */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--sidebar-bg);
    z-index: 1050;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    box-shadow: 4px 0 20px rgba(0,0,0,0.15);
}

.sidebar-brand {
    padding: 24px 20px;
    display: flex;
    align-items: center;
    gap: 14px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-brand img {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(255,255,255,0.1);
    padding: 4px;
}

.sidebar-brand .brand-text {
    display: flex;
    flex-direction: column;
}

.sidebar-brand .brand-name {
    font-size: 1.2rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.5px;
}

.sidebar-brand .brand-sub {
    font-size: 0.7rem;
    color: rgba(255,255,255,0.5);
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 16px 0;
}

.sidebar-nav .nav-section {
    padding: 8px 20px 4px;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: rgba(255,255,255,0.35);
    font-weight: 600;
    margin-top: 8px;
}

.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    color: var(--text-sidebar);
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 0;
    margin: 1px 0;
    transition: var(--transition);
    position: relative;
}

.sidebar-nav .nav-link i {
    width: 20px;
    text-align: center;
    font-size: 0.95rem;
}

.sidebar-nav .nav-link:hover {
    background: var(--bg-sidebar-hover);
    color: var(--text-sidebar-active);
}

.sidebar-nav .nav-link.active {
    background: var(--bg-sidebar-active);
    color: var(--text-sidebar-active);
    font-weight: 600;
}

.sidebar-nav .nav-link.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--secondary);
    border-radius: 0 3px 3px 0;
}

.sidebar-nav .nav-link .badge {
    margin-left: auto;
    font-size: 0.65rem;
    padding: 3px 8px;
}

.sidebar-user {
    padding: 16px 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-user .user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 0.85rem;
}

.sidebar-user .user-info {
    flex: 1;
}

.sidebar-user .user-name {
    font-size: 0.8rem;
    font-weight: 600;
    color: #fff;
}

.sidebar-user .user-role {
    font-size: 0.65rem;
    color: rgba(255,255,255,0.5);
    text-transform: capitalize;
}

/* ============================================
   TOP NAVBAR
   ============================================ */
.top-navbar {
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    height: 64px;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1040;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    transition: var(--transition);
}

.top-navbar .page-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.top-navbar .page-title span {
    color: var(--text-muted);
    font-weight: 400;
    font-size: 0.85rem;
    margin-left: 8px;
}

.top-navbar .navbar-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.top-navbar .nav-action-btn {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.top-navbar .nav-action-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.top-navbar .nav-action-btn .notification-dot {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 8px;
    height: 8px;
    background: #e74c3c;
    border-radius: 50%;
    border: 2px solid #fff;
}

.sidebar-toggle {
    display: none;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-secondary);
    margin-right: 12px;
}

/* ============================================
   MAIN CONTENT
   ============================================ */
.main-content {
    margin-left: var(--sidebar-width);
    padding: 88px 28px 28px;
    min-height: 100vh;
    transition: var(--transition);
}

/* ============================================
   CARDS
   ============================================ */
.card {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-card);
    background: var(--bg-card);
    transition: var(--transition);
    overflow: hidden;
}

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

.card-header {
    border-bottom: 1px solid var(--border-color);
    background: transparent;
    padding: 16px 20px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-body {
    padding: 20px;
}

/* ---- KPI Cards ---- */
.kpi-card {
    border: none;
    border-radius: var(--border-radius);
    background: var(--bg-card);
    padding: 22px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.kpi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.kpi-card.kpi-primary::before { background: linear-gradient(90deg, var(--primary), var(--primary-light)); }
.kpi-card.kpi-success::before { background: linear-gradient(90deg, var(--secondary), var(--secondary-light)); }
.kpi-card.kpi-warning::before { background: linear-gradient(90deg, #f39c12, #f7dc6f); }
.kpi-card.kpi-danger::before { background: linear-gradient(90deg, #e74c3c, #f1948a); }
.kpi-card.kpi-info::before { background: linear-gradient(90deg, var(--accent), var(--accent-light)); }

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

.kpi-card .kpi-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: #fff;
    margin-bottom: 16px;
}

.kpi-card.kpi-primary .kpi-icon { background: linear-gradient(135deg, var(--primary), var(--primary-light)); }
.kpi-card.kpi-success .kpi-icon { background: linear-gradient(135deg, var(--secondary), var(--secondary-light)); }
.kpi-card.kpi-warning .kpi-icon { background: linear-gradient(135deg, #f39c12, #f7dc6f); }
.kpi-card.kpi-danger .kpi-icon { background: linear-gradient(135deg, #e74c3c, #f1948a); }
.kpi-card.kpi-info .kpi-icon { background: linear-gradient(135deg, var(--accent), var(--accent-light)); }

.kpi-card .kpi-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 4px;
}

.kpi-card .kpi-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 500;
}

.kpi-card .kpi-trend {
    font-size: 0.72rem;
    margin-top: 8px;
    font-weight: 600;
}

.kpi-card .kpi-trend.up { color: var(--secondary); }
.kpi-card .kpi-trend.down { color: #e74c3c; }

/* ============================================
   TABLES
   ============================================ */
.table {
    margin-bottom: 0;
}

.table thead th {
    background: var(--bg-body);
    border-bottom: 2px solid var(--border-color);
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    padding: 12px 16px;
    white-space: nowrap;
}

.table tbody td {
    padding: 12px 16px;
    vertical-align: middle;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.85rem;
}

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

.table tbody tr:hover {
    background: rgba(14,145,140,0.03);
}

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

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 0.85rem;
    padding: 8px 18px;
    transition: var(--transition);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    box-shadow: 0 2px 8px rgba(14,145,140,0.3);
}
.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    box-shadow: 0 4px 14px rgba(14,145,140,0.4);
    transform: translateY(-1px);
    color: #fff;
}

.btn-success {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
    color: #fff;
    box-shadow: 0 2px 8px rgba(93,190,40,0.3);
}
.btn-success:hover {
    background: linear-gradient(135deg, var(--secondary-dark), var(--secondary));
    color: #fff;
}

.btn-outline-primary {
    border: 1.5px solid var(--primary);
    color: var(--primary);
    background: transparent;
}
.btn-outline-primary:hover {
    background: var(--primary);
    color: #fff;
}

.btn-outline-secondary {
    border: 1.5px solid var(--border-color);
    color: var(--text-secondary);
    background: transparent;
}

.btn-sm {
    padding: 5px 12px;
    font-size: 0.78rem;
    border-radius: 6px;
}

.btn-icon {
    width: 32px;
    height: 32px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
}

/* ============================================
   FORMS
   ============================================ */
.form-control, .form-select {
    border: 1.5px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 10px 14px;
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: var(--transition);
    background-color: var(--bg-card);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(14,145,140,0.12);
    outline: none;
}

.form-label {
    font-weight: 600;
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.input-group-text {
    border: 1.5px solid var(--border-color);
    background: var(--bg-body);
    border-radius: var(--border-radius-sm);
    color: var(--text-muted);
}

/* ============================================
   BADGES
   ============================================ */
.badge {
    font-weight: 600;
    font-size: 0.72rem;
    padding: 4px 10px;
    border-radius: 6px;
    letter-spacing: 0.3px;
}

.badge.bg-primary { background: var(--primary) !important; }
.badge.bg-success { background: var(--secondary) !important; }

/* ============================================
   LOGIN PAGE
   ============================================ */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0a3d3b 0%, #0e918c 40%, #5dbe28 100%);
    position: relative;
    overflow: hidden;
}

.login-wrapper::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: rgba(93,190,40,0.08);
    top: -200px;
    right: -200px;
}

.login-wrapper::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(14,145,140,0.1);
    bottom: -150px;
    left: -150px;
}

.login-card {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 48px 40px;
    width: 100%;
    max-width: 440px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
    position: relative;
    z-index: 1;
    animation: slideUp 0.6s ease;
}

.login-logo {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo img {
    width: 72px;
    height: 72px;
    margin-bottom: 12px;
}

.login-logo h2 {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: 4px;
}

.login-logo p {
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* ============================================
   ALERTS
   ============================================ */
.alert {
    border-radius: var(--border-radius-sm);
    border: none;
    font-size: 0.85rem;
    padding: 12px 16px;
}

.alert-success {
    background: rgba(93,190,40,0.1);
    color: var(--secondary-dark);
}

.alert-danger {
    background: rgba(231,76,60,0.1);
    color: #c0392b;
}

/* ============================================
   CHART CONTAINERS
   ============================================ */
.chart-container {
    position: relative;
    height: 300px;
    padding: 16px;
}

/* ============================================
   EMPTY STATE
   ============================================ */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 16px;
    color: var(--border-color);
}

.empty-state h5 {
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 0.85rem;
}

/* ============================================
   MODAL
   ============================================ */
.modal-content {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
    padding: 18px 24px;
}

.modal-header .modal-title {
    font-weight: 700;
    font-size: 1rem;
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    border-top: 1px solid var(--border-color);
    padding: 14px 24px;
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination .page-link {
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 8px !important;
    margin: 0 2px;
    font-size: 0.82rem;
    font-weight: 600;
    padding: 6px 12px;
}

.pagination .page-item.active .page-link {
    background: var(--primary);
    border-color: var(--primary);
}

/* ============================================
   BREADCRUMB
   ============================================ */
.breadcrumb {
    background: transparent;
    padding: 0;
    margin-bottom: 20px;
    font-size: 0.82rem;
}

.breadcrumb-item a {
    color: var(--text-muted);
}

.breadcrumb-item.active {
    color: var(--primary);
    font-weight: 600;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

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

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.animate-in {
    animation: slideUp 0.4s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* ============================================
   UTILITY
   ============================================ */
.text-primary { color: var(--primary) !important; }
.text-secondary-custom { color: var(--text-secondary); }
.bg-primary-soft { background: rgba(14,145,140,0.08); }
.bg-success-soft { background: rgba(93,190,40,0.08); }
.bg-warning-soft { background: rgba(243,156,18,0.08); }
.bg-danger-soft { background: rgba(231,76,60,0.08); }

.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.fw-800 { font-weight: 800; }

.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.show {
        transform: translateX(0);
    }
    .top-navbar {
        left: 0;
    }
    .main-content {
        margin-left: 0;
    }
    .sidebar-toggle {
        display: flex;
    }
    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0,0,0,0.5);
        z-index: 1045;
    }
    .sidebar-overlay.show {
        display: block;
    }
}

@media (max-width: 575.98px) {
    .main-content {
        padding: 80px 16px 16px;
    }
    .top-navbar {
        padding: 0 16px;
    }
    .login-card {
        margin: 16px;
        padding: 36px 28px;
    }
    .kpi-card .kpi-value {
        font-size: 1.4rem;
    }
}

/* ============================================
   PROFILE PAGE
   ============================================ */
.profile-header {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary), var(--secondary));
    border-radius: var(--border-radius-lg);
    padding: 32px;
    color: #fff;
    position: relative;
    overflow: hidden;
    margin-bottom: 24px;
}

.profile-header::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(255,255,255,0.05);
    top: -100px;
    right: -80px;
}

.user-avatar-sm {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 0.75rem;
    flex-shrink: 0;
}

.profile-avatar {
    width: 80px;
    height: 80px;
    border-radius: 16px;
    background: rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #fff;
    font-weight: 700;
    border: 3px solid rgba(255,255,255,0.3);
}

/* ============================================
   FARM VIEW 
   ============================================ */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.info-item {
    padding: 14px;
    background: var(--bg-body);
    border-radius: var(--border-radius-sm);
}

.info-item .info-label {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.info-item .info-value {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* ============================================
   EFFICIENCY METER
   ============================================ */
.efficiency-bar {
    height: 8px;
    background: var(--bg-body);
    border-radius: 4px;
    overflow: hidden;
}

.efficiency-bar .bar-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 1s ease;
}

.efficiency-bar .bar-fill.excellent { background: linear-gradient(90deg, var(--secondary), var(--secondary-light)); }
.efficiency-bar .bar-fill.good { background: linear-gradient(90deg, var(--primary), var(--primary-light)); }
.efficiency-bar .bar-fill.warning { background: linear-gradient(90deg, #f39c12, #f7dc6f); }
.efficiency-bar .bar-fill.critical { background: linear-gradient(90deg, #e74c3c, #f1948a); }

/* ============================================
   FOOTER
   ============================================ */
.main-footer {
    margin-left: var(--sidebar-width);
    padding: 20px 28px;
    text-align: center;
    font-size: 0.78rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    transition: var(--transition);
}

@media (max-width: 991.98px) {
    .main-footer { margin-left: 0; }
}