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

:root {
    --orange: #EA580C;
    --green: #16A34A;
    --cream: #FFF7ED;
    --white: #FFFFFF;
    --gray-100: #F5F5F5;
    --gray-200: #E5E5E5;
    --gray-700: #404040;
    --gray-900: #171717;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--cream);
    color: var(--gray-900);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
header {
    background: var(--white);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

header h1 {
    color: var(--orange);
    font-size: 1.75rem;
}

nav {
    display: flex;
    gap: 0.75rem;
}

/* Buttons */
.btn-primary, .btn-secondary, .filter-btn {
    padding: 0.625rem 1.25rem;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: #15803D;
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--white);
    color: var(--gray-700);
    border: 2px solid var(--gray-200);
}

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

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--orange) 0%, #DC2626 100%);
    color: var(--white);
    text-align: center;
    padding: 3rem 1rem;
    margin-bottom: 2rem;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.hero p {
    font-size: 1.15rem;
    opacity: 0.95;
}

/* Filters */
.filters {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.filters h3 {
    color: var(--gray-700);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.filter-buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--gray-100);
    color: var(--gray-700);
    border: 2px solid transparent;
}

.filter-btn:hover {
    background: var(--cream);
    border-color: var(--orange);
}

.filter-btn.active {
    background: var(--orange);
    color: var(--white);
    border-color: var(--orange);
}

/* Meal Grid */
.meal-grid {
    background: var(--white);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    margin-bottom: 2rem;
    overflow-x: auto;
}

.grid-header {
    display: grid;
    grid-template-columns: 100px repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--gray-200);
}

.day-label, .meal-label {
    font-weight: 700;
    color: var(--gray-700);
    text-align: center;
    font-size: 0.9rem;
}

.grid-row {
    display: grid;
    grid-template-columns: 100px repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.day-name {
    font-weight: 700;
    color: var(--orange);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
}

.meal-slot {
    background: var(--cream);
    border: 2px solid var(--gray-200);
    border-radius: 8px;
    padding: 1rem;
    min-height: 80px;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.meal-slot:hover {
    border-color: var(--orange);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(234, 88, 12, 0.15);
}

.meal-slot.empty {
    background: var(--white);
    border-style: dashed;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-700);
    font-size: 0.85rem;
}

.meal-name {
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.25rem;
    font-size: 0.95rem;
}

.meal-tags {
    display: flex;
    gap: 0.25rem;
    flex-wrap: wrap;
    margin-top: 0.5rem;
}

.meal-tag {
    font-size: 0.7rem;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    background: var(--green);
    color: var(--white);
}

.remove-btn {
    position: absolute;
    top: 0.25rem;
    right: 0.25rem;
    background: rgba(0,0,0,0.6);
    color: white;
    border: none;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    font-size: 0.75rem;
    cursor: pointer;
    display: none;
}

.meal-slot:hover .remove-btn {
    display: block;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    animation: fadeIn 0.2s;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--white);
    border-radius: 12px;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    animation: slideUp 0.3s;
}

@keyframes slideUp {
    from { transform: translateY(50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 2px solid var(--gray-200);
}

.modal-header h2 {
    color: var(--orange);
}

.close-btn {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--gray-700);
    cursor: pointer;
    line-height: 1;
}

.close-btn:hover {
    color: var(--orange);
}

#groceryListContent {
    padding: 1.5rem;
    overflow-y: auto;
}

.grocery-category {
    margin-bottom: 1.5rem;
}

.grocery-category h3 {
    color: var(--green);
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

.grocery-category ul {
    list-style: none;
    padding-left: 0;
}

.grocery-category li {
    padding: 0.5rem;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
}

.grocery-category li:before {
    content: "□";
    margin-right: 0.75rem;
    font-size: 1.2rem;
    color: var(--orange);
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 2px solid var(--gray-200);
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
}

/* Footer */
footer {
    background: var(--gray-900);
    color: var(--white);
    text-align: center;
    padding: 2rem 1rem;
    margin-top: 3rem;
}

footer p {
    opacity: 0.9;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h2 {
        font-size: 1.75rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .grid-header, .grid-row {
        grid-template-columns: 80px repeat(3, 1fr);
        gap: 0.5rem;
    }

    .meal-slot {
        padding: 0.75rem;
        min-height: 70px;
    }

    .meal-name {
        font-size: 0.85rem;
    }

    .meal-tag {
        font-size: 0.65rem;
    }

    .filter-buttons {
        flex-direction: column;
    }

    .filter-btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .grid-header, .grid-row {
        display: flex;
        flex-direction: column;
    }

    .day-name {
        background: var(--orange);
        color: var(--white);
        padding: 0.5rem;
        border-radius: 8px;
        margin-bottom: 0.5rem;
    }

    .meal-slot {
        margin-bottom: 0.5rem;
    }
}