/* Variables */
:root {
    --color-primary: #E07A5F;
    --color-primary-dark: #c9644a;
    --color-secondary: #F4A261;
    --color-accent: #F2CC8F;
    --color-bg: #FAF3E0;
    --color-bg-card: #FFFFFF;
    --color-text: #3D405B;
    --color-text-light: #6B6E8A;
    --color-border: #E8E1D1;
    --color-success: #81B29A;
    --color-error: #E07A5F;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 2px 8px rgba(61, 64, 91, 0.08);
    --shadow-lg: 0 4px 16px rgba(61, 64, 91, 0.12);
    --transition: 0.2s ease;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Base */
html {
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    min-height: 100vh;
}

/* Container */
.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 1rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
header {
    text-align: center;
    padding: 1.5rem 0;
}

header h1 {
    font-size: 1.75rem;
    color: var(--color-primary);
    font-weight: 700;
}

.subtitle {
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

/* Main */
main {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Cards */
.card {
    background: var(--color-bg-card);
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow);
}

.card h2 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--color-text);
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--color-border);
    padding-bottom: 0.5rem;
}

.tab {
    flex: 1;
    padding: 0.6rem 0.75rem;
    border: none;
    background: transparent;
    color: var(--color-text-light);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.tab:hover {
    background: var(--color-bg);
}

.tab.active {
    background: var(--color-primary);
    color: white;
}

/* Tab panels */
.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

/* Form elements */
label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

input[type="text"],
input[type="url"],
input[type="number"],
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--color-bg-card);
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

.input-group {
    display: flex;
    gap: 0.5rem;
}

.input-group input {
    flex: 1;
}

.hint {
    font-size: 0.8rem;
    color: var(--color-text-light);
    margin-top: 0.5rem;
}

/* Buttons */
.btn {
    padding: 0.75rem 1.25rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

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

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

.btn-primary:active {
    transform: scale(0.98);
}

.btn-secondary {
    background: var(--color-bg);
    color: var(--color-text);
    border: 2px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-border);
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1.25rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-add {
    background: var(--color-success);
    color: white;
}

.btn-add:hover {
    opacity: 0.9;
}

.btn-remove {
    background: var(--color-error);
    color: white;
}

.btn-remove:hover {
    opacity: 0.9;
}

.btn-chip {
    padding: 0.4rem 0.75rem;
    border: 2px solid var(--color-border);
    border-radius: 20px;
    background: var(--color-bg-card);
    color: var(--color-text);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-chip.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

/* Manual form */
.manual-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.manual-row {
    display: grid;
    grid-template-columns: 1fr 1fr 2fr auto;
    gap: 0.5rem;
    align-items: center;
}

.manual-row input {
    padding: 0.6rem 0.75rem;
}

/* Portions row (original → target) */
.portions-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    flex-wrap: wrap;
}

.portions-original,
.portions-target-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.portions-original label,
.portions-target-group label {
    margin-bottom: 0;
    white-space: nowrap;
    font-size: 0.9rem;
}

.portions-original input,
.portions-target-group input {
    width: 60px;
    text-align: center;
    font-weight: 600;
    font-size: 1.1rem;
}

.portions-arrow {
    font-size: 1.5rem;
    color: var(--color-primary);
    font-weight: bold;
}

.portions-hint {
    font-size: 0.75rem;
    color: var(--color-secondary);
    font-style: italic;
    display: none;
}

.portions-original.needs-check .portions-hint {
    display: inline;
}

.portions-original.needs-check input {
    border-color: var(--color-secondary);
    background-color: #FFF8F0;
}

.portions-original.confirmed .portions-hint {
    display: none;
}

/* Collapsible sections */
.collapsible .collapsible-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    padding: 0.5rem 0;
    user-select: none;
}

.collapsible .collapsible-header h2 {
    margin-bottom: 0;
}

.collapsible .collapse-icon {
    font-size: 0.8rem;
    color: var(--color-text-light);
    transition: transform 0.2s ease;
}

.collapsible.collapsed .collapse-icon {
    transform: rotate(-90deg);
}

.collapsible .collapsible-content {
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.collapsible.collapsed .collapsible-content {
    max-height: 0 !important;
    padding-top: 0;
    padding-bottom: 0;
}

.ingredient-count {
    font-size: 0.85rem;
    color: var(--color-text-light);
    font-weight: normal;
}

/* Ingredients list */
.ingredients-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.ingredient-item {
    display: grid;
    grid-template-columns: 1fr 1fr 2fr auto;
    gap: 0.5rem;
    align-items: center;
    padding: 0.5rem;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
}

.ingredient-item input {
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
}

/* Radio buttons */
.calc-mode {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    justify-content: center;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.95rem;
}

.radio-label input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
}

/* Calc input */
.calc-input {
    padding: 1rem;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
}

.calc-input label {
    margin-bottom: 0.5rem;
}

.calc-input input {
    width: 100px;
    text-align: center;
    font-size: 1.25rem;
    font-weight: 600;
}

.quick-multipliers {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
    flex-wrap: wrap;
}

/* Result section */
.result-info {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--color-border);
}

.result-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.result-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
}

.result-item-qty {
    font-weight: 600;
    color: var(--color-primary);
    min-width: 80px;
}

.result-item-name {
    font-weight: 500;
    flex: 1;
}

/* Footer */
footer {
    text-align: center;
    padding: 1.5rem 0;
    color: var(--color-text-light);
    font-size: 0.85rem;
}

/* Loading overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(250, 243, 224, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    z-index: 1000;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Toast notifications */
.toast-container {
    position: fixed;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-sm);
    background: var(--color-text);
    color: white;
    font-size: 0.9rem;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

.toast.success {
    background: var(--color-success);
}

.toast.error {
    background: var(--color-error);
}

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

/* Help details */
.help-details {
    margin-top: 1rem;
    font-size: 0.85rem;
}

.help-details summary {
    cursor: pointer;
    color: var(--color-primary);
    font-weight: 500;
}

.help-details summary:hover {
    text-decoration: underline;
}

.help-content {
    margin-top: 0.75rem;
    padding: 1rem;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    color: var(--color-text-light);
}

.help-content p {
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.help-content ol {
    margin-left: 1.25rem;
    margin-bottom: 1rem;
}

.help-content ol:last-child {
    margin-bottom: 0;
}

.help-content li {
    margin-bottom: 0.25rem;
}

/* Responsive */
@media (max-width: 480px) {
    .manual-row,
    .ingredient-item {
        grid-template-columns: 1fr 1fr;
        gap: 0.5rem;
    }

    /* Nom de l'ingredient sur toute la largeur */
    .manual-row .ingredient-name,
    .ingredient-item input[data-field="name"] {
        grid-column: 1 / -1;
        order: -1;
    }

    .manual-row .btn-icon,
    .ingredient-item .btn-icon {
        grid-column: 2;
        justify-self: end;
    }

    .tabs {
        flex-wrap: wrap;
    }

    .tab {
        font-size: 0.85rem;
        padding: 0.5rem;
    }
}

/* PWA standalone mode */
@media (display-mode: standalone) {
    .container {
        padding-top: env(safe-area-inset-top);
        padding-bottom: env(safe-area-inset-bottom);
    }
}

/* Ad container */
.ad-container {
    margin: 1rem 0;
    min-height: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.ad-container ins {
    max-width: 100%;
}