:root {
    /* AgriGrowth Design Language Tokens */
    --surface: #f7f9fb;
    --surface-dim: #d8dadc;
    --surface-bright: #f7f9fb;
    --surface-container-lowest: #ffffff;
    --surface-container-low: #f2f4f6;
    --surface-container: #eceef0;
    --surface-container-high: #e6e8ea;
    --surface-container-highest: #e0e3e5;
    
    --on-surface: #191c1e;
    --on-surface-variant: #414844;
    --outline: #717973;
    --outline-variant: #c1c8c2;
    
    --primary: #1b4332; /* Deep Emerald */
    --on-primary: #ffffff;
    --primary-container: #c1ecd4;
    --on-primary-container: #002114;
    
    --secondary: #556519;
    --on-secondary: #ffffff;
    --secondary-container: #d8ec91;
    --on-secondary-container: #5b6b1f;
    
    --tertiary: #00452c;
    --on-tertiary: #ffffff;
    --tertiary-container: #92f7c3;
    
    --error: #ba1a1a;
    --on-error: #ffffff;
    --error-container: #ffdad6;
    --on-error-container: #93000a;
    
    --background: #f7f9fb;
    --on-background: #191c1e;

    /* Spacing & Geometry */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    --font-main: 'Inter', system-ui, sans-serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--background);
    color: var(--on-background);
    line-height: 1.6;
    min-height: 100vh;
    overflow: hidden;
}

/* Layout */
.app-container {
    display: flex;
    height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background-color: var(--surface-container-lowest);
    border-right: 1px solid var(--outline-variant);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: all 0.3s ease;
    z-index: 100;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--outline-variant);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.sidebar-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links {
    padding: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    color: var(--on-surface-variant);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s;
    cursor: pointer;
}

.nav-link:hover, .nav-link.active {
    background: var(--secondary-container);
    color: var(--on-secondary-container);
}

/* Nav Groups (Accordion) */
.nav-group { display: flex; flex-direction: column; }
.nav-group-title {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0.75rem 1rem; border-radius: var(--radius-md);
    color: var(--on-surface-variant); font-weight: 600; cursor: pointer;
    background: transparent; border: none; width: 100%; text-align: left;
}
.nav-group-title:hover { background: var(--surface-container-high); }
.nav-group-title span { display: flex; align-items: center; gap: 0.75rem; }
.nav-group .chevron { transition: transform 0.3s; }
.nav-group.open .chevron { transform: rotate(180deg); }
.nav-group-content { display: none; flex-direction: column; padding-left: 2rem; gap: 0.125rem; }
.nav-group.open .nav-group-content { display: flex; }
.nav-group-content .nav-link { font-size: 0.875rem; padding: 0.5rem 1rem; }

.nav-link i {
    width: 20px;
    height: 20px;
}

.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid var(--outline-variant);
}

.user-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.header {
    height: 64px;
    background-color: var(--surface-container-lowest);
    border-bottom: 1px solid var(--outline-variant);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    flex-shrink: 0;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.search-bar {
    position: relative;
    width: 320px;
}

.search-bar i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--on-surface-variant);
    pointer-events: none;
}

.search-bar input {
    width: 100%;
    padding: 0.5rem 1rem 0.5rem 2.5rem;
    border: 1px solid var(--outline-variant);
    border-radius: 20px;
    background-color: var(--surface-container-low);
    font-size: 0.875rem;
    transition: all 0.2s;
}

.search-bar input:focus {
    outline: none;
    border-color: var(--primary);
    background-color: var(--surface-container-lowest);
    box-shadow: 0 0 0 3px var(--primary-container);
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.exchange-rate {
    background-color: var(--surface-container);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    border: 1px solid var(--outline-variant);
    font-size: 0.875rem;
    font-weight: 600;
}

.exchange-rate span {
    color: var(--primary);
    margin-left: 0.5rem;
}

.top-actions {
    display: flex;
    gap: 0.5rem;
}

.icon-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    background: none;
    color: var(--on-surface-variant);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.icon-btn:hover {
    background-color: var(--surface-container);
    color: var(--primary);
}

/* Content Body */
.content-body {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
    background-color: var(--background);
}

.view-header {
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.view-header h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--on-background);
}

.view-header p {
    color: var(--on-surface-variant);
}

/* Cards & Components */
.card {
    background-color: var(--surface-container-lowest);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: var(--surface-container-lowest);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--primary);
}

.stat-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--on-surface-variant);
    text-transform: uppercase;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--on-surface);
}

.stat-trend {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.trend-up { color: var(--primary); }
.trend-down { color: var(--error); }

/* Tables */
.table-container {
    overflow-x: auto;
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-md);
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--surface-container-lowest);
}

th {
    background-color: var(--surface-container-low);
    padding: 1rem;
    text-align: left;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--on-surface-variant);
    border-bottom: 1px solid var(--outline-variant);
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--outline-variant);
    font-size: 0.875rem;
}

tr:hover td {
    background-color: var(--surface-container-low);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

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

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

.btn-secondary {
    background-color: var(--secondary-container);
    color: var(--on-secondary-container);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--outline);
    color: var(--on-surface);
}

.btn-outline:hover {
    background-color: var(--surface-container);
}

.btn-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.75rem;
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease-out;
}

.modal-content {
    background-color: var(--surface-container-lowest);
    width: 90%;
    max-width: 600px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    animation: slideUp 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-header {
    padding: 1.5rem;
    background-color: var(--primary);
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-body {
    padding: 2rem;
}

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

/* Forms */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.field {
    margin-bottom: 1.25rem;
}

.field label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--on-surface);
}

.field input, .field select, .field textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-md);
    background-color: var(--surface-container-lowest);
    font-size: 0.875rem;
    transition: border-color 0.2s;
}

.field input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-container);
}

/* Utilities */
.text-primary { color: var(--primary); }
.text-success { color: var(--primary); }
.text-error { color: var(--error); }
.text-bold { font-weight: 700; }
.text-muted { color: var(--on-surface-variant); }
.grid { display: grid; gap: 1.5rem; }

/* Menu Cards */
.menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.menu-card {
    background: white;
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 1rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
}

.menu-card i {
    color: var(--primary);
    background: var(--primary-container);
    padding: 1rem;
    border-radius: var(--radius-md);
    transition: transform 0.3s;
}

.menu-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin: 0;
    color: var(--on-surface);
}

.menu-card p {
    font-size: 0.875rem;
    color: var(--on-surface-variant);
    margin: 0;
}

.menu-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
    background: var(--surface-container-low);
}

.menu-card:hover i {
    transform: scale(1.1) rotate(5deg);
}

/* Table Inputs */
...
.table-input {
    background: var(--surface-container-lowest);
    border: 1px solid var(--outline-variant);
    border-radius: 4px;
    padding: 6px 10px;
    font-size: 0.875rem;
    color: var(--on-surface);
    width: 100%;
    max-width: 150px;
    transition: all 0.2s;
}

.table-input:focus {
    outline: none;
    border-color: var(--primary);
    background: white;
    box-shadow: 0 0 0 2px var(--primary-container);
}