:root {
    --primary: #000000;
    --secondary: #ffffff;
    --accent: #111111;
    --gray-bg: #f9f9f9;
    --gray-light: #f1f1f1;
    --gray-border: #eeeeee;
    --gray-text-dim: #888888;
    --gray-text: #444444;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-sans);
    background-color: var(--secondary);
    color: var(--primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    /* Imagem de fundo definida pelo admin (background-css.php) */
}

.container {
    max-width: 500px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Typography */
h1, .logo {
    font-size: 22px;
    font-weight: 300;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    text-align: center;
}

h2 {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 20px;
}

p {
    font-size: 14px;
    color: var(--gray-text);
    font-weight: 400;
}

/* Buttons */
.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 16px 24px;
    background: var(--primary);
    color: var(--secondary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.btn:active {
    transform: scale(0.97);
    opacity: 0.9;
}

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

.btn-ghost {
    background: transparent;
    color: var(--gray-text-dim);
    font-size: 11px;
    border: none;
}

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

label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

input, select {
    width: 100%;
    padding: 16px;
    background: var(--gray-bg);
    border: 1px solid var(--gray-border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    transition: var(--transition);
    outline: none;
}

input:focus {
    border-color: var(--primary);
    background: var(--secondary);
}

/* Dashboard & Cards */
.card {
    background: var(--secondary);
    border: 1px solid var(--gray-border);
    border-radius: var(--radius-md);
    padding: 24px;
    margin-bottom: 16px;
    transition: var(--transition);
}

.balance-hero {
    background: var(--primary);
    color: var(--secondary);
    padding: 32px 24px;
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
}

.balance-hero::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 200px;
    height: 200px;
    background: rgba(255,255,255,0.03);
    border-radius: 50%;
}

.stat-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.7;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 32px;
    font-weight: 300;
    letter-spacing: -0.02em;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 24px;
}

.stat-box {
    background: var(--gray-bg);
    padding: 20px;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-border);
}

.stat-box .stat-value {
    font-size: 20px;
    font-weight: 500;
}

/* Product Vitrine */
.product-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.product-card {
    background: var(--secondary);
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
}

.product-image-container {
    background: var(--gray-bg);
    border-radius: var(--radius-md);
    padding: 20px;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.product-card:active .product-image-container {
    transform: scale(0.98);
    border-color: var(--gray-border);
}

.product-image-container img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
}

.product-info {
    padding: 4px;
}

.product-name {
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.product-price {
    font-size: 15px;
    font-weight: 300;
}

.product-badge {
    display: inline-block;
    font-size: 9px;
    background: var(--primary);
    color: var(--secondary);
    padding: 2px 8px;
    border-radius: 100px;
    margin-top: 6px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Navigation */
.nav-bottom {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 500px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    justify-content: space-around;
    padding: 12px 10px 24px;
    border-top: 1px solid var(--gray-border);
    z-index: 1000;
}

.nav-item {
    text-decoration: none;
    color: var(--gray-text-dim);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: var(--transition);
}

.nav-item i {
    width: 20px;
    height: 20px;
    stroke-width: 1.5;
}

.nav-item.active {
    color: var(--primary);
}

/* Detail Page */
.detail-header {
    margin-top: 10px;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.back-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gray-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    text-decoration: none;
}

.product-hero-img {
    width: 100%;
    aspect-ratio: 1;
    background: var(--gray-bg);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    margin-bottom: 32px;
}

.product-hero-img img {
    max-width: 100%;
    height: auto;
}

.yield-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: var(--primary);
    color: var(--secondary);
    border-radius: var(--radius-md);
    margin-bottom: 24px;
}

.yield-card span {
    font-size: 13px;
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.yield-card strong {
    font-size: 18px;
    font-weight: 600;
}

/* Utils */
.mt-auto { margin-top: auto; }
.mb-40 { margin-bottom: 40px; }
.text-center { text-align: center; }
.fade-in { animation: fadeIn 0.6s ease-out; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}