:root {
  --primary-purple: #4A148C;
  --secondary-purple: #7B1FA2;
  --light-purple-bg: #F5F5F5;
  --light-gray: #F5F5F5;
  --medium-gray: #e5e7eb;
  --text-gray: #4B5563;
  --white: #ffffff;
  --text-dark: #212121;
  --font-body: 'Nunito', sans-serif;
  --star-gold: #ffc107;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--light-gray);
  color: var(--text-dark);
  min-height: 100vh;
  padding: 1rem;
}

.app-container {
  background-color: var(--white);
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: calc(100vh - 2rem);
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1.5rem;
  background-color: var(--primary-purple);
  flex-shrink: 0;
}
.header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.header .logo {
  height: 35px;
  width: auto;
}
.header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  margin: 0;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.header-icon-button {
  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--white);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: background-color 0.2s;
  text-decoration: none;
}
.header-icon-button:hover {
  background-color: rgba(255, 255, 255, 0.2);
}
.header-icon-button svg {
    width: 20px;
    height: 20px;
}

.content-wrapper {
  flex-grow: 1;
  overflow-y: auto;
  padding: 1.5rem;
  position: relative;
}

.view-container {
    display: none;
}
.view-container.active {
    display: block;
    animation: fadeIn 0.4s ease-in-out;
}

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

.view-title {
    font-size: 1.75rem;
    font-weight: 900;
    color: var(--primary-purple);
    text-align: center;
    margin-bottom: 2rem;
}

/* Main Search */
.main-search-container {
    max-width: 600px;
    margin: 0 auto 2rem auto;
    position: relative;
}
#main-search-input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    border-radius: 999px;
    border: 1px solid var(--medium-gray);
    font-size: 1rem;
    font-family: var(--font-body);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%234b5563' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'%3E%3C/circle%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'%3E%3C/line%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: 1rem center;
    -webkit-appearance: none;
}
#main-search-input:focus {
    outline: none;
    border-color: var(--secondary-purple);
    box-shadow: 0 0 0 3px rgba(123, 31, 162, 0.2);
}


/* Main Categories */
.main-categories-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}
.category-card {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    color: var(--white);
    text-decoration: none;
    display: flex;
    align-items: flex-end;
    min-height: 150px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}
.category-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.85) 20%, transparent 80%);
    z-index: 2;
}
.category-card-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}
.category-card-title {
    position: relative;
    z-index: 3;
    padding: 1rem;
    font-size: 1.5rem;
    font-weight: 700;
}

/* Results View */
.results-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.back-button {
    background-color: var(--light-gray);
    border: 1px solid var(--medium-gray);
    color: var(--primary-purple);
    padding: 0.5rem;
    height: 44px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
}
.back-button:hover {
    background-color: var(--medium-gray);
}
.back-button svg {
    width: 24px;
    height: 24px;
}
.back-button span {
    display: none;
    font-weight: 700;
    margin-left: 0.5rem;
}
.search-container {
    flex-grow: 1;
}
#search-input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    border-radius: 999px;
    border: 1px solid var(--medium-gray);
    font-size: 1rem;
    font-family: var(--font-body);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%234b5563' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'%3E%3C/circle%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'%3E%3C/line%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: 1rem center;
    -webkit-appearance: none;
}
#search-input:focus {
    outline: none;
    border-color: var(--secondary-purple);
    box-shadow: 0 0 0 3px rgba(123, 31, 162, 0.2);
}
#results-title {
    margin-bottom: 1.5rem;
}

/* New Filter UI */
.sub-categories-container {
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

#filters-dropdown-container {
    position: relative;
    width: 100%;
    max-width: 300px;
}

.multiselect-button {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--medium-gray);
    background-color: var(--white);
    font-size: 1rem;
    font-family: var(--font-body);
    font-weight: 700;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
}
.multiselect-arrow {
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid var(--text-gray);
    transition: transform 0.2s ease;
}
.multiselect-button[aria-expanded="true"] .multiselect-arrow {
    transform: rotate(180deg);
}

.multiselect-options {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--white);
    border: 1px solid var(--medium-gray);
    border-radius: 8px;
    margin-top: 4px;
    max-height: 250px;
    overflow-y: auto;
    z-index: 10;
}
.multiselect-options.show {
    display: block;
}
.multiselect-options label {
    display: block;
    padding: 0.75rem 1rem;
    cursor: pointer;
    font-weight: 700;
}
.multiselect-options label:hover {
    background-color: var(--light-purple-bg);
}
.multiselect-options input {
    margin-right: 0.75rem;
    accent-color: var(--secondary-purple);
}

#selected-filters-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

.filter-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--secondary-purple);
    color: var(--white);
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.85rem;
    animation: zoomIn 0.2s;
}
.filter-pill.clear-all-pill {
    background-color: #dc2626; /* Danger red */
}
.filter-pill.clear-all-pill .filter-pill-close {
    font-size: 1.2rem;
    font-weight: bold;
}
.filter-pill-close {
    background: none;
    border: none;
    color: var(--white);
    opacity: 0.7;
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    padding: 0;
}
.filter-pill-close:hover {
    opacity: 1;
}

.restaurants-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}
.restaurant-group-title {
    grid-column: 1 / -1;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--secondary-purple);
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--light-purple-bg);
    margin-bottom: 0;
    margin-top: 1rem;
}
.restaurant-group-title:first-of-type {
    margin-top: 0;
}
.restaurant-group-description {
    grid-column: 1 / -1;
    font-size: 0.9rem;
    color: var(--text-gray);
    margin: 0.5rem 0 1.5rem 0;
    padding-left: 0.5rem;
}

.restaurant-card {
    background: var(--white);
    border: 1px solid var(--medium-gray);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}
.restaurant-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
}
.restaurant-image-container {
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: var(--light-gray);
    position: relative;
}
.restaurant-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.restaurant-card-tag {
    position: absolute;
    top: 10px;
    right: 10px;
    padding: 0.3rem 0.8rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    z-index: 2;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}
.restaurant-details {
    padding: 1rem;
    flex-grow: 1;
}
.restaurant-name {
    font-size: 1.2rem;
    font-weight: 900;
    color: var(--primary-purple);
    margin-bottom: 0.5rem;
}
.restaurant-location {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-gray);
    margin-top: -0.25rem;
    margin-bottom: 0.75rem;
}
.restaurant-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.tag {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    background-color: var(--light-purple-bg);
}
.tag.cuisine-tag {
    color: var(--secondary-purple);
    border: 1px solid var(--secondary-purple);
}
.tag.experience-tag {
    color: var(--star-gold);
    border: 1px solid var(--star-gold);
    background-color: #fffbeb;
}

.no-results {
    padding: 2rem;
    background-color: var(--light-purple-bg);
    border-radius: 10px;
    text-align: center;
}

.footer {
    padding: 1.5rem;
    border-top: 1px solid var(--medium-gray);
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-gray);
    flex-shrink: 0;
}
.footer a {
    color: var(--primary-purple);
    font-weight: 700;
    text-decoration: none;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0,0,0,0.6);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
}
.modal-overlay.show {
    display: flex;
    animation: fadeIn 0.3s forwards;
}
.modal-content {
    background-color: var(--white);
    padding: 0;
    border-radius: 15px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    position: relative;
    max-height: 85vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    animation: zoomIn 0.3s forwards;
}

.modal-close-button {
    position: absolute;
    top: 10px;
    right: 15px;
    background: rgba(0,0,0,0.4);
    border: none;
    font-size: 1.5rem;
    color: var(--white);
    cursor: pointer;
    line-height: 1;
    z-index: 10;
    width: 32px;
    height: 32px;
    border-radius: 50%;
}
#details-modal-content {
    display: flex;
    flex-direction: column;
}
.modal-header-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 15px 15px 0 0;
}
.modal-body {
    padding: 1.5rem;
}
.modal-title {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--primary-purple);
    margin: 0 0 1rem 0;
}
.modal-description {
    color: var(--text-gray);
    line-height: 1.6;
    margin-bottom: 1rem;
}
.modal-description p { margin-bottom: 1em; }
.modal-description b { color: var(--text-dark); }

.modal-location {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--secondary-purple);
    margin-bottom: 1.5rem;
}
.modal-footer {
    padding: 1rem 1.5rem 1.5rem;
    border-top: 1px solid var(--medium-gray);
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.modal-cta-button {
    display: block;
    width: 100%;
    padding: 0.75rem;
    color: var(--white);
    text-align: center;
    font-weight: 700;
    text-decoration: none;
    border-radius: 8px;
    transition: background-color 0.2s;
    border: none;
    font-family: var(--font-body);
    font-size: 1rem;
    cursor: pointer;
}
.modal-cta-button.primary {
    background-color: var(--secondary-purple);
}
.modal-cta-button.primary:hover {
    background-color: var(--primary-purple);
}
.modal-cta-button.secondary {
    background-color: var(--white);
    color: var(--secondary-purple);
    border: 1px solid var(--secondary-purple);
}
.modal-cta-button.secondary:hover {
    background-color: var(--light-purple-bg);
}

/* How to Use Modal Specifics */
#how-to-use-modal-overlay .modal-content {
    padding: 2rem;
}
.instructions-container {
    text-align: left;
    font-size: 0.95rem;
    line-height: 1.6;
}
.instructions-section {
    margin-bottom: 1.5rem;
}
.instructions-section:last-child {
    margin-bottom: 0;
}
.instructions-section h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--secondary-purple);
    margin: 0 0 0.75rem 0;
    padding-bottom: 0.25rem;
    border-bottom: 2px solid var(--light-purple-bg);
    text-align: left;
}
.instructions-section ul {
    list-style-position: inside;
    padding-left: 0.5rem;
}
.instructions-section strong {
    color: var(--primary-purple);
    font-weight: 700;
}
.modal-options-footer {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--medium-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}


@keyframes zoomIn {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

@media (min-width: 640px) {
    .main-categories-grid {
        grid-template-columns: repeat(3, 1fr);
        min-height: 200px;
    }
    .back-button {
        padding: 0.5rem 1rem;
        border-radius: 8px;
    }
    .back-button span {
        display: inline;
    }
    .modal-footer {
        flex-direction: row;
    }
}