/* Premium Light Theme Style Sheet - Matching mockup */
:root {
    --bg-main: #f0f4f8;
    --bg-card: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;
    
    --brand-blue: #0f52ba;
    --brand-blue-hover: #0a3d91;
    --brand-blue-light: #eef2ff;
    
    --accent-green: #15803d;
    --accent-green-hover: #166534;
    --accent-green-light: #f0fdf4;
    
    --accent-orange: #d97706;
    --accent-orange-hover: #b45309;
    
    --warning-bg: #fffbeb;
    --warning-border: #fef3c7;
    
    --border-color: #cbd5e1;
    --border-light: #e2e8f0;
    
    --font-jp: 'Noto Sans JP', 'Outfit', sans-serif;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-jp);
    font-size: 15px;
    line-height: 1.6;
    padding: 2rem 0;
}

.app-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header styling */
.app-header {
    text-align: center;
    margin-bottom: 2rem;
}

.app-header h1 {
    font-size: 2.2rem;
    font-weight: 800;
    color: #0f1e36;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}

/* Fruit Selector Pills */
.fruit-selector-box {
    background: #f8fafc;
    border: 1px solid var(--border-light);
    border-radius: 10px;
    padding: 0.85rem;
}

.selector-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.fruit-pills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.fruit-pill {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.5rem 0.75rem;
    background: #ffffff;
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease-in-out;
}

.fruit-pill:hover {
    border-color: var(--brand-blue);
    background: #f1f5f9;
    transform: translateY(-1px);
}

.fruit-pill.active {
    background: var(--brand-blue);
    color: #ffffff;
    border-color: var(--brand-blue);
    box-shadow: 0 2px 8px rgba(15, 82, 186, 0.3);
}

.fruit-pill.active[data-fruit="orange"] {
    background: #ea580c;
    border-color: #ea580c;
    box-shadow: 0 2px 8px rgba(234, 88, 12, 0.3);
}

.fruit-pill.active[data-fruit="blueberry"] {
    background: #4f46e5;
    border-color: #4f46e5;
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.3);
}

.fruit-pill.active[data-fruit="apple"] {
    background: #15803d;
    border-color: #15803d;
    box-shadow: 0 2px 8px rgba(21, 128, 61, 0.3);
}

.pill-icon {
    font-size: 1.1rem;
}

.app-header .subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    font-weight: 400;
}

/* Steps Indicator */
.steps-indicator {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 1.25rem 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
    gap: 1.5rem;
}

.step-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.05rem;
    color: #0f1e36;
}

.step-item i {
    font-size: 1.4rem;
}

.icon-blue {
    color: var(--brand-blue);
}

.step-arrow {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* 3-Column Grid */
.main-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    align-items: start;
    margin-bottom: 2rem;
}

.column-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.column-header {
    margin-bottom: 0.75rem;
}

.column-header h2 {
    font-size: 1.15rem;
    font-weight: 700;
    color: #0f1e36;
}

.glass-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.inner-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
    position: relative;
    padding-left: 0.75rem;
    border-left: 4px solid var(--brand-blue);
}

/* Upload zone */
.upload-zone {
    background-color: #fafbfc;
    border: 2px dashed var(--border-color);
    border-radius: 10px;
    padding: 2.5rem 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
}

.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--brand-blue);
    background-color: #f5f8ff;
}

.upload-icon {
    font-size: 2.5rem;
    color: var(--brand-blue);
    margin-bottom: 0.75rem;
}

.upload-text-main {
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.upload-text-sub {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.upload-hint {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.hidden {
    display: none !important;
}

/* Image preview containers */
.image-preview-box {
    margin-top: 1.25rem;
    display: flex;
    flex-direction: column;
}

.preview-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.image-container {
    width: 100%;
    aspect-ratio: 4/3;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f8fafc;
}

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

.placeholder-bg {
    background-color: #f8fafc;
    border: 1px solid var(--border-light);
}

.placeholder-text {
    text-align: center;
    color: var(--text-muted);
}

.placeholder-text i {
    font-size: 3rem;
    margin-bottom: 0.75rem;
    color: var(--border-color);
}

.placeholder-text p {
    font-size: 0.85rem;
    line-height: 1.5;
}

/* Column 2 results */
.count-display {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
}

.count-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--accent-green);
    margin: 0 0.25rem;
    vertical-align: middle;
}

/* Settings Sliders */
.settings-box {
    border-top: 1px solid var(--border-light);
    padding-top: 1.25rem;
}

.settings-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.form-group {
    margin-bottom: 1rem;
}

.label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.4rem;
}

.label-row label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.value-display {
    font-family: monospace;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--brand-blue);
    background-color: var(--brand-blue-light);
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
}

/* Range input styling */
input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    background: #e2e8f0;
    border-radius: 3px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--brand-blue);
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(0,0,0,0.15);
    transition: transform 0.1s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

/* Column 3 Downloads */
.download-buttons-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    font-family: var(--font-jp);
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s ease;
    text-decoration: none;
    outline: none;
}

.btn-full {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary-blue {
    background-color: var(--brand-blue);
    color: #ffffff;
}

.btn-primary-blue:hover:not(:disabled) {
    background-color: var(--brand-blue-hover);
    box-shadow: 0 4px 6px -1px rgba(15, 82, 186, 0.2);
}

.btn-success {
    background-color: var(--accent-green);
    color: #ffffff;
}

.btn-success:hover:not(:disabled) {
    background-color: var(--accent-green-hover);
    box-shadow: 0 4px 6px -1px rgba(21, 128, 61, 0.2);
}

/* Table styling */
.table-wrapper {
    overflow-y: auto;
    max-height: 250px;
    border: 1px solid var(--border-light);
    border-radius: 6px;
    margin-top: 0.5rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    text-align: center;
}

th {
    background-color: #f1f5f9;
    padding: 0.6rem 0.4rem;
    font-weight: 700;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: 0;
    z-index: 5;
}

td {
    padding: 0.6rem 0.4rem;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-secondary);
}

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

.empty-row td {
    padding: 2rem 1rem;
    color: var(--text-muted);
}

.table-footer-summary {
    text-align: right;
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-primary);
    margin-top: 0.5rem;
}

/* Utilities margin-top */
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }

/* Informational Cards Section */
.info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.info-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.info-card.warning-bg {
    background-color: var(--warning-bg);
    border-color: var(--warning-border);
}

.info-card-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.theme-blue { color: var(--brand-blue); }
.theme-green { color: var(--accent-green); }
.theme-orange { color: var(--accent-orange); }

.info-card-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.info-card-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    line-height: 1.4;
}

.info-card-list li i {
    margin-top: 0.15rem;
}

.text-blue-icon { color: var(--brand-blue); }
.text-green-icon { color: var(--accent-green); }

.warning-bg .info-card-list {
    list-style: disc;
    padding-left: 1.2rem;
    color: #92400e;
}

.warning-bg .info-card-list li {
    display: list-item;
}

/* Call-to-action quote banner */
.cta-banner {
    background-color: #0f1e36;
    border-radius: 12px;
    padding: 1.75rem 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #ffffff;
    box-shadow: var(--shadow-lg);
}

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

.cta-icon {
    font-size: 2.2rem;
    color: #ffffff;
}

.cta-text h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.cta-text p {
    font-size: 0.9rem;
    color: #cbd5e1;
}

.cta-button {
    background-color: var(--bg-card);
    color: #0f1e36;
    padding: 0.75rem 1.75rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.2s ease;
    border: 1px solid transparent;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.cta-button:hover {
    background-color: #f1f5f9;
    box-shadow: 0 4px 10px rgba(255,255,255,0.1);
}

/* Footer disclaimer */
.app-footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}

.app-footer p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Responsive grid logic */
@media (max-width: 1024px) {
    .main-grid {
        grid-template-columns: 1fr;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-banner {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
    
    .cta-left {
        flex-direction: column;
        gap: 0.75rem;
    }
}

@media (max-width: 640px) {
    body {
        padding: 1rem 0;
    }
    
    .steps-indicator {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .step-arrow {
        transform: rotate(90deg);
    }
    
    .app-header h1 {
        font-size: 1.6rem;
    }
}