:root {
    /* 核心品牌色 */
    --primary: #00d2d3;
    --primary-dark: #01a3a4;
    --accent-profit: #ff9f43;
    --accent-exp: #54a0ff;
    --accent-fast: #ff6b6b;

    /* Liquid Glass 变量 */
    --bg-gradient: radial-gradient(at 0% 0%, hsla(253, 16%, 7%, 1) 0, transparent 50%), radial-gradient(at 50% 0%, hsla(225, 39%, 30%, 1) 0, transparent 50%), radial-gradient(at 100% 0%, hsla(339, 49%, 30%, 1) 0, transparent 50%);
    --bg-color: #1e272e;
    /* Fallback */

    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    --glass-blur: blur(20px);

    --surface-card: rgba(255, 255, 255, 0.05);
    --surface-hover: rgba(255, 255, 255, 0.1);

    --text-main: #ffffff;
    --text-light: rgba(255, 255, 255, 0.7);
    --text-inverse: #2d3436;

    --input-bg: rgba(0, 0, 0, 0.2);
    --input-border: rgba(255, 255, 255, 0.1);

    --radius-lg: 24px;
    --radius-md: 16px;
}

/* Light Mode Override (Default to Dark for "Liquid" feel, but support Light) */
@media (prefers-color-scheme: light) {
    :root {
        --bg-gradient: radial-gradient(at 40% 20%, hsla(28, 100%, 74%, 1) 0px, transparent 50%),
            radial-gradient(at 80% 0%, hsla(189, 100%, 56%, 1) 0px, transparent 50%),
            radial-gradient(at 0% 50%, hsla(355, 100%, 93%, 1) 0px, transparent 50%);
        --bg-color: #f0f2f5;

        --glass-bg: rgba(255, 255, 255, 0.4);
        --glass-border: rgba(255, 255, 255, 0.6);
        --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);

        --surface-card: rgba(255, 255, 255, 0.6);
        --surface-hover: rgba(255, 255, 255, 0.8);

        --text-main: #2d3436;
        --text-light: #636e72;

        --input-bg: rgba(255, 255, 255, 0.5);
        --input-border: rgba(255, 255, 255, 0.4);
    }
}

body {
    font-family: 'Nunito', 'PingFang SC', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    background-image: var(--bg-gradient);
    background-attachment: fixed;
    background-size: cover;
    color: var(--text-main);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* --- Glass Components --- */
.glass-panel,
.dashboard-header,
.rec-card,
.all-crops-section,
.special-crops-section,
.calculator-section {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

/* --- Header --- */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    padding: 15px 30px;
    position: sticky;
    top: 20px;
    z-index: 100;
    transition: all 0.3s ease;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 12px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.logo i {
    color: var(--primary);
    font-size: 1.8rem;
    filter: drop-shadow(0 0 5px rgba(0, 210, 211, 0.5));
}

.user-level-control,
.land-type-control {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--input-bg);
    padding: 6px 15px;
    border-radius: 40px;
    border: 1px solid var(--input-border);
    transition: all 0.3s;
}

.user-level-control:focus-within,
.land-type-control:focus-within {
    box-shadow: 0 0 0 3px rgba(0, 210, 211, 0.3);
    border-color: var(--primary);
}

.user-level-control label,
.land-type-control label {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-light);
    cursor: pointer;
    white-space: nowrap;
}

.user-level-control input {
    width: 60px;
    border: none;
    background: var(--primary);
    color: white;
    font-size: 1.1rem;
    font-weight: 800;
    text-align: center;
    padding: 6px 0;
    border-radius: 30px;
    outline: none;
}

.land-type-control select {
    border: none;
    background: transparent;
    color: var(--text-main);
    font-size: 0.95rem;
    font-weight: 700;
    padding: 6px 25px 6px 5px;
    outline: none;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
}

/* --- Welcome Section --- */
.welcome-section {
    margin-bottom: 30px;
    padding: 0 10px;
    animation: fadeIn 0.6s ease-out;
}

.welcome-section h2 {
    font-size: 2.2rem;
    margin: 0 0 8px 0;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.welcome-section p {
    font-size: 1.1rem;
    color: var(--text-light);
}

.highlight-text {
    color: var(--primary);
    font-weight: 800;
    font-size: 1.4rem;
    text-shadow: 0 0 10px rgba(0, 210, 211, 0.3);
}

/* --- Cards --- */
.recommendations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
    margin-bottom: 50px;
}

.rec-card {
    background: var(--surface-card);
    padding: 25px;
    position: relative;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
    animation: slideUp 0.6s ease-out backwards;
}

.rec-card:hover {
    transform: translateY(-8px) scale(1.02);
    background: var(--surface-hover);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.rec-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
}

.card-badge {
    font-size: 0.8rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 20px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
}

.profit-card .card-badge {
    color: var(--accent-profit);
    border: 1px solid var(--accent-profit);
}

.exp-card .card-badge {
    color: var(--accent-exp);
    border: 1px solid var(--accent-exp);
}

.fast-card .card-badge {
    color: var(--accent-fast);
    border: 1px solid var(--accent-fast);
}

.rec-content {
    display: flex;
    align-items: center;
    gap: 20px;
}

.rec-icon {
    font-size: 3.5rem;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    box-shadow: inset 0 0 20px rgba(255, 255, 255, 0.05);
}

.rec-details h3 {
    margin: 0 0 5px 0;
    font-size: 1.4rem;
    font-weight: 800;
}

.rec-details .main-stat {
    font-size: 1.8rem;
    font-weight: 900;
    display: block;
    line-height: 1.2;
}

.rec-details .sub-stat {
    font-size: 0.85rem;
    color: var(--text-light);
    display: block;
    margin-top: 4px;
}

/* --- Calculator Section --- */
.calculator-section {
    margin-bottom: 40px;
    padding: 30px;
}

.calc-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.calc-rows {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.calc-row-item {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1fr auto;
    /* Crop, Land, Count, Remove */
    gap: 15px;
    align-items: center;
    background: var(--surface-card);
    padding: 15px;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    transition: background 0.3s;
}

.calc-row-item:hover {
    background: var(--surface-hover);
}

.calc-row-item select,
.calc-row-item input {
    width: 100%;
    padding: 10px 15px;
    border-radius: 10px;
    border: 1px solid var(--input-border);
    background: var(--input-bg);
    color: var(--text-main);
    font-size: 0.95rem;
    font-weight: 600;
    outline: none;
    box-sizing: border-box;
}

.btn-icon {
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 8px;
    border-radius: 50%;
    transition: all 0.2s;
}

.btn-icon:hover {
    background: rgba(255, 71, 87, 0.2);
    color: #ff4757;
}

.calc-results {
    background: var(--surface-card);
    padding: 20px;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}

.res-item {
    text-align: center;
}

.res-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-light);
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.res-val {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
}

.suggestion-box {
    margin-top: 20px;
    background: rgba(255, 159, 67, 0.15);
    border: 1px solid rgba(255, 159, 67, 0.3);
    border-radius: 12px;
    padding: 15px;
    font-size: 0.95rem;
    color: var(--accent-profit);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* --- Tables --- */
.all-crops-section,
.special-crops-section {
    padding: 30px;
    margin-bottom: 40px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.section-header h3 {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 800;
}

.search-box {
    background: var(--input-bg);
    padding: 10px 20px;
    border-radius: 30px;
    display: flex;
    align-items: center;
    gap: 12px;
    border: 1px solid var(--input-border);
    width: 250px;
}

.search-box input {
    border: none;
    background: transparent;
    outline: none;
    color: var(--text-main);
    width: 100%;
}

.crops-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 10px;
}

.crops-table th {
    padding: 15px 20px;
    text-align: left;
    font-weight: 700;
    color: var(--text-light);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    cursor: pointer;
}

.crops-table tbody tr {
    background: var(--surface-card);
    transition: all 0.2s ease;
    animation: slideInRight 0.4s ease-out backwards;
}

.crops-table tbody tr:hover {
    transform: scale(1.01);
    background: var(--surface-hover);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.crops-table td {
    padding: 18px 20px;
    border: none;
    color: var(--text-main);
}

.crops-table td:first-child {
    border-radius: 12px 0 0 12px;
}

.crops-table td:last-child {
    border-radius: 0 12px 12px 0;
}

.crop-name-cell {
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: 700;
    font-size: 1.05rem;
}

.crop-icon-sm {
    font-size: 1.8rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

.profit-text {
    color: var(--accent-profit);
}

.exp-text {
    color: var(--accent-exp);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .dashboard-header {
        flex-direction: column;
        gap: 20px;
    }

    .calc-row-item {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .result-grid {
        grid-template-columns: 1fr 1fr;
    }

    .crops-table {
        display: block;
    }

    .crops-table thead {
        display: none;
    }

    .crops-table tbody tr {
        display: flex;
        flex-direction: column;
        padding: 15px;
        margin-bottom: 15px;
        border-radius: 16px;
    }

    .crops-table td {
        padding: 5px 0;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .crops-table td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--text-light);
        font-size: 0.9rem;
    }
}

/* Smart Suggestion Styles */
.suggestion-category {
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.suggestion-category:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.sug-header {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.suggestion-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 6px;
    line-height: 1.4;
}

.sug-row {
    background: rgba(255, 255, 255, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.8rem;
    white-space: nowrap;
    color: var(--text-main);
}