:root {
    --color-primary: #03A62C;
    --color-primary-dark: #025928;
    --color-primary-light: #AAD9A3;
    --color-bg: #F9FAFB;
    --color-surface: #FFFFFF;
    --color-text: #1F2937;
    --color-text-light: #6B7280;
    --color-border: #E5E7EB;
    --color-whatsapp: #25D366;
    --color-danger: #EF4444;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --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);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--color-primary-dark);
}

.page-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.page-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: 2rem;
}

/* Header */
.main-header {
    background-color: var(--color-surface);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    height: 40px;
}

.main-nav {
    display: flex;
    gap: 1rem;
}

.nav-btn {
    background: none;
    border: none;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-light);
    cursor: pointer;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.nav-btn:hover {
    color: var(--color-primary);
    background-color: #f3f4f6;
}

.nav-btn.active {
    color: var(--color-primary-dark);
    background-color: var(--color-primary-light);
}

/* Layout Container */
.app-container {
    max-width: 1280px;
    margin: 2rem auto;
    padding: 0 2rem;
    display: flex;
    gap: 2rem;
}

.form-section {
    flex: 6;
}

.results-section {
    flex: 4;
}

.sticky-results {
    position: sticky;
    top: 6rem;
}

.w-100 {
    width: 100%;
}

/* Cards */
.card {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: 1.5rem;
    overflow: hidden;
    transition: var(--transition);
}

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

.card-header {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    color: white;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.card-header h2 {
    color: white;
    font-size: 1.25rem;
    margin: 0;
}

.card-header i {
    font-size: 1.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: span 2;
}

label {
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--color-text);
    font-size: 0.95rem;
}

input[type="text"],
input[type="number"],
input[type="email"],
input[type="tel"],
select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    outline: none;
}

input:focus, select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.search-wrapper {
    display: flex;
    gap: 0.5rem;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

/* Buttons */
button {
    cursor: pointer;
    font-family: inherit;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
}

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

.btn-secondary {
    background-color: var(--color-border);
    color: var(--color-text);
    border: none;
    padding: 0.75rem 1.5rem;
}

.btn-secondary:hover {
    background-color: #d1d5db;
}

.outline {
    background: transparent;
    border: 1px solid currentColor;
}

.btn-danger {
    color: var(--color-danger);
    background: transparent;
    padding: 0.75rem 1.5rem;
}

.btn-large {
    font-size: 1.125rem;
    padding: 1rem 2rem;
}

.btn-icon {
    background: none;
    border: none;
    color: var(--color-primary);
    font-size: 1.5rem;
    padding: 0.5rem;
}

.btn-icon:hover {
    color: var(--color-primary-dark);
    background: var(--color-primary-light);
}

/* Map specific elements */
.map-container {
    height: 400px;
    width: 100%;
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    border: 1px solid var(--color-border);
    z-index: 10;
}

.draw-controls {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.area-result {
    padding: 1rem;
    background-color: var(--color-primary-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.area-value {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--color-primary-dark);
}

/* Custom Checkbox/Radio */
.radio-group {
    display: flex;
    gap: 1rem;
}

.radio-btn {
    flex: 1;
    border: 2px solid var(--color-border);
    padding: 1rem;
    text-align: center;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

.radio-btn:hover {
    border-color: var(--color-primary-light);
}

.radio-btn.active {
    border-color: var(--color-primary);
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
}

.radio-btn input {
    display: none;
}

/* Toggle Switch */
.toggle-switch {
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: relative;
    width: 50px;
    height: 24px;
    background-color: #ccc;
    transition: .4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--color-primary);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

.toggle-label {
    font-weight: 500;
}

/* Results Content */
.results-card {
    background: var(--color-surface);
}

.placeholder-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
    color: var(--color-text-light);
}

.placeholder-content i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--color-border);
}

.results-header h2 {
    font-size: 1.5rem;
    margin: 0;
}

.result-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    padding: 1.5rem;
}

.result-box {
    background-color: #f3f4f6;
    padding: 1.25rem;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.result-box.highlight {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    color: white;
}
.result-box.highlight .result-icon { color: white; }
.result-box.highlight span { color: rgba(255,255,255,0.8); }
.result-box.highlight h3 { color: white; }

.result-box.success {
    background-color: var(--color-primary-light);
}
.result-box.success span { color: var(--color-primary-dark); }
.result-box.success h3 { color: var(--color-primary-dark); }

.result-box.eco {
    border: 2px solid var(--color-primary-light);
    background-color: transparent;
}

.result-icon {
    font-size: 2rem;
    color: var(--color-primary);
}

.result-info span {
    font-size: 0.85rem;
    color: var(--color-text-light);
    font-weight: 500;
}

.result-info h3 {
    font-size: 1.5rem;
    margin: 0;
    color: var(--color-text);
}

.chart-container {
    padding: 0 1.5rem 1.5rem;
}

/* Quotes Grid */
.quotes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.quote-card {
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
    transition: var(--transition);
    border-top: 4px solid var(--color-primary);
}

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

.quote-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    color: var(--color-text-light);
    font-size: 0.875rem;
}

.quote-amount {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-primary-dark);
    margin-bottom: 0.5rem;
}

.empty-state {
    text-align: center;
    padding: 4rem;
    color: var(--color-text-light);
}
.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* Footer */
.main-footer {
    background-color: var(--color-primary-dark);
    color: white;
    padding: 3rem 2rem 1rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 2rem;
    margin-bottom: 1rem;
}

.footer-logo img {
    height: 50px;
}

.footer-info p {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-bottom {
    text-align: center;
    font-size: 0.875rem;
    opacity: 0.8;
}

/* WhatsApp Button */
.whatsapp-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: var(--color-whatsapp);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    z-index: 9999;
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    text-decoration: none;
    color: white;
}

/* Responsive */
@media (max-width: 1024px) {
    .app-container {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .grid-2 {
        grid-template-columns: 1fr;
    }
    .result-grid {
        grid-template-columns: 1fr;
    }
    .adjustment-grid {
        grid-template-columns: 1fr !important;
    }
}