LocalFoodAI_FerRo988/static/style.css

:root {
    --bg-color: #0d1117;
    --panel-bg: rgba(22, 27, 34, 0.7);
    --border-color: rgba(48, 54, 61, 0.8);
    --text-main: #c9d1d9;
    --text-muted: #8b949e;
    --primary-gradient: linear-gradient(135deg, #2ea043 0%, #238636 100%);
    --primary-color: #2ea043;
    --user-msg-bg: linear-gradient(135deg, #1f6feb 0%, #164e63 100%);
    --bot-msg-bg: rgba(33, 38, 45, 0.8);
    --glass-blur: blur(16px);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    background-image: radial-gradient(circle at top right, rgba(46, 160, 67, 0.15), transparent 400px),
                      radial-gradient(circle at bottom left, rgba(31, 111, 235, 0.1), transparent 400px);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    padding: 20px;
    overflow: hidden;
}

.app-container {
    width: 100%;
    max-width: 900px;
    height: 90vh;
    background: var(--panel-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}

.chat-header {
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(13, 17, 23, 0.6);
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    font-size: 28px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    background-clip: text;
}

h1 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #f0f6fc;
}

.status-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    background-color: #2ea043;
    border-radius: 50%;
    margin-right: 6px;
    box-shadow: 0 0 10px #2ea043;
}

.status-text {
    font-size: 0.75rem;
    color: var(--text-muted);
}

#clear-chat {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.2s ease;
    padding: 8px;
    border-radius: 8px;
}

#clear-chat:hover {
    color: #f85149;
    background: rgba(248, 81, 73, 0.1);
}

.chat-container {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
    scroll-behavior: smooth;
}

.chat-container::-webkit-scrollbar {
    width: 6px;
}
.chat-container::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
}

.message {
    display: flex;
    gap: 16px;
    max-width: 85%;
    animation: fadeIn 0.3s ease forwards;
    opacity: 0;
    transform: translateY(10px);
}

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

.message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.avatar {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.1);
}

.message.user .avatar {
    background: var(--user-msg-bg);
}

.message.system .avatar {
    background: var(--bot-msg-bg);
    border: 1px solid var(--border-color);
}

.message-content {
    padding: 14px 18px;
    border-radius: 18px;
    line-height: 1.6;
    font-size: 0.95rem;
    white-space: pre-wrap;
    word-break: break-word;
}

.message.user .message-content {
    background: var(--user-msg-bg);
    color: #fff;
    border-top-right-radius: 4px;
}

.message.system .message-content {
    background: var(--bot-msg-bg);
    border: 1px solid var(--border-color);
    border-top-left-radius: 4px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.chat-input-area {
    padding: 20px 24px;
    background: rgba(13, 17, 23, 0.8);
    border-top: 1px solid var(--border-color);
}

.input-form {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 8px 16px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.input-form:focus-within {
    border-color: rgba(46, 160, 67, 0.5);
    box-shadow: 0 0 0 2px rgba(46, 160, 67, 0.1);
}

textarea {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-main);
    font-family: inherit;
    font-size: 1rem;
    resize: none;
    max-height: 150px;
    padding: 10px 0;
    outline: none;
}

textarea::placeholder {
    color: var(--text-muted);
}

.send-btn {
    background: var(--primary-color);
    border: none;
    border-radius: 12px;
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    cursor: pointer;
    transition: transform 0.2s, background 0.2s;
    flex-shrink: 0;
    margin-bottom: 2px;
}

.send-btn:hover {
    background: #3fb950;
    transform: scale(1.05);
}

.send-btn:active {
    transform: scale(0.95);
}

.send-btn:disabled {
    background: var(--border-color);
    color: var(--text-muted);
    cursor: not-allowed;
    transform: none;
}

.footer-note {
    text-align: center;
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 12px;
}

.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 4px 8px;
    align-items: center;
}

.typing-dot {
    width: 6px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: typing 1.4s infinite ease-in-out both;
}

.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }
.typing-dot:nth-child(3) { animation-delay: 0s; }

@keyframes typing {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}

/* Modal Styles */
.nav-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 6px 12px;
    border-radius: 8px;
    cursor: pointer;
    margin-right: 10px;
    font-size: 0.85rem;
    transition: background 0.2s;
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.modal-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.modal-content {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    width: 350px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    transform: translateY(0);
    transition: transform 0.3s ease;
}

.modal-overlay.hidden .modal-content {
    transform: translateY(-20px);
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 20px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
}

.close-modal:hover {
    color: var(--text-main);
}

.modal-content h2 {
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 1.3rem;
    text-align: center;
}

.input-group {
    margin-bottom: 15px;
}

.input-group label {
    display: block;
    margin-bottom: 5px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.input-group input {
    width: 100%;
    padding: 10px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-main);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
}

.input-group input:focus {
    border-color: var(--primary-color);
}

.error-text {
    color: #f85149;
    font-size: 0.85rem;
    margin-bottom: 10px;
    text-align: center;
    min-height: 18px;
}

.success-text {
    color: #3fb950;
    font-size: 0.85rem;
    margin-bottom: 10px;
    text-align: center;
    min-height: 18px;
}

.primary-btn {
    width: 100%;
    padding: 10px;
    background: var(--primary-gradient);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-size: 1rem;
    cursor: pointer;
    transition: opacity 0.2s;
}

.primary-btn:hover {
    opacity: 0.9;
}
/* Authentication Screen Gateway specific styles */
.auth-container {
    width: 100%;
    max-width: 400px;
    background: var(--panel-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-header h2 {
    font-size: 1.5rem;
    color: #f0f6fc;
    margin-bottom: 8px;
}

.auth-header p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.auth-toggle {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 20px;
}

.auth-toggle a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.auth-toggle a:hover {
    color: #3fb950;
    text-decoration: underline;
}

/* Animations for transitioning out the auth screen */
.fade-out {
    opacity: 0;
    transform: scale(0.95);
    pointer-events: none;
}
.fade-in {
    opacity: 1;
    transform: scale(1);
}

/* --------------------------------- */
/* Food Search Component Styles      */
/* --------------------------------- */

.search-module {
    padding: 10px 24px;
    background: rgba(22, 27, 34, 0.4);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    z-index: 10;
}

.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    background: rgba(13, 17, 23, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 8px 16px;
    transition: all 0.3s ease;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

.search-input-wrapper:focus-within {
    border-color: rgba(46, 160, 67, 0.6);
    box-shadow: 0 0 0 3px rgba(46, 160, 67, 0.15), inset 0 2px 4px rgba(0,0,0,0.1);
}

.search-icon {
    color: var(--text-muted);
    margin-right: 12px;
}

#food-search-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-main);
    font-size: 0.95rem;
    outline: none;
    font-family: inherit;
    width: 100%;
}

#clear-search-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 50%;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

#clear-search-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #f85149;
}

.search-results-dropdown {
    position: absolute;
    top: 100%;
    left: 24px;
    right: 24px;
    margin-top: 8px;
    background: rgba(22, 27, 34, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.4);
    max-height: 350px;
    overflow-y: auto;
    z-index: 100;
    opacity: 0;
    transform: translateY(-10px);
    animation: dropdownFadeIn 0.2s forwards;
}

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

.search-results-dropdown::-webkit-scrollbar {
    width: 6px;
}
.search-results-dropdown::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.2);
    border-radius: 10px;
}

.food-item {
    padding: 14px 18px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    cursor: pointer;
    transition: background 0.2s, padding-left 0.2s;
}

.food-item:last-child {
    border-bottom: none;
}

.food-item:hover {
    background: rgba(255,255,255,0.05);
    padding-left: 22px;
}

.food-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.food-name {
    font-weight: 600;
    color: #e6edf3;
    font-size: 1rem;
}

.food-badge {
    background: rgba(46, 160, 67, 0.15);
    color: #3fb950;
    border: 1px solid rgba(46, 160, 67, 0.3);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.food-macros {
    display: flex;
    gap: 15px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.macro-tag span {
    color: #c9d1d9;
    font-weight: 500;
}

/* --- Expandable Details (Task #40) --- */
.food-item-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 10px;
}

.details-btn {
    background: none;
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--primary);
    font-size: 0.75rem;
    padding: 2px 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.details-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary);
}

.details-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, margin-top 0.3s;
}

.details-panel.expanded {
    max-height: 500px; /* Large enough for content */
    margin-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 12px;
}

.nutrient-section {
    margin-bottom: 12px;
}

.nutrient-section-title {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 6px;
    font-weight: 700;
}

.nutrient-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.nutrient-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    padding: 4px 0;
}

.nutrient-label {
    color: var(--text-muted);
}

.nutrient-value {
    font-weight: 500;
    color: var(--text);
}

.search-loading, .search-empty {
    padding: 20px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    background: transparent;
}

/* Mobile Responsiveness */
@media (max-width: 600px) {
    body {
        padding: 0;
    }
    .app-container {
        height: 100vh;
        border-radius: 0;
        border: none;
    }
    .chat-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .actions {
        width: 100%;
        justify-content: space-between;
    }
    .search-module {
        padding: 10px 12px;
    }
    .search-results-dropdown {
        left: 12px;
        right: 12px;
    }
    .message {
        max-width: 95%;
    }
}

/* =============================================
   Macro Dashboard (US-07 Task #38)
   ============================================= */
.macro-dashboard {
    display: flex;
    gap: 12px;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
    animation: fadeIn 0.4s ease;
}

.macro-card {
    flex: 1;
    min-width: 100px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px 16px;
    text-align: center;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.macro-card:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.25);
}

.macro-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.2px;
    margin-bottom: 6px;
    font-weight: 600;
}

.macro-value {
    font-size: 1.4rem;
    font-weight: 700;
    transition: opacity 0.3s ease;
}

/* Color-coded per macro type */
#macro-calories .macro-value, #macro-calories { --macro-color: #facc15; }
#macro-protein  .macro-value, #macro-protein  { --macro-color: #ef4444; }
#macro-carbs    .macro-value, #macro-carbs    { --macro-color: #3b82f6; }
#macro-fat      .macro-value, #macro-fat      { --macro-color: #22c55e; }

#macro-calories .macro-value { color: #facc15; }
#macro-protein  .macro-value { color: #ef4444; }
#macro-carbs    .macro-value { color: #3b82f6; }
#macro-fat      .macro-value { color: #22c55e; }

#macro-calories { border-color: rgba(250, 204, 21,  0.2); }
#macro-protein  { border-color: rgba(239,  68, 68,  0.2); }
#macro-carbs    { border-color: rgba(59,  130, 246,  0.2); }
#macro-fat      { border-color: rgba(34,  197,  94,  0.2); }

@media (max-width: 768px) {
    .macro-dashboard {
        gap: 8px;
        padding: 10px 12px;
    }
    .macro-card {
        min-width: 70px;
        padding: 10px 10px;
    }
    .macro-value {
        font-size: 1.1rem;
    }
}

/* =============================================
   Meal Builder (US-10 Task #46)
   ============================================= */
.meal-builder-tray {
    margin: 0 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: 12px;
}

.meal-builder-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    background: rgba(255, 255, 255, 0.05);
    cursor: pointer;
}

.tray-title {
    display: flex;
    align-items: center;
    gap: 10px;
}

.tray-title h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin: 0;
}

.tray-title .item-count {
    font-size: 0.75rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.1);
    padding: 2px 8px;
    border-radius: 10px;
}

.meal-content {
    max-height: 500px;
    overflow: hidden;
    transition: max-height 0.3s ease-out, opacity 0.3s ease;
    opacity: 1;
}

.meal-content.collapsed {
    max-height: 0;
    opacity: 0;
}

.meal-items-list {
    padding: 12px;
    max-height: 250px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Custom Scrollbar for Meal List */
.meal-items-list::-webkit-scrollbar {
    width: 4px;
}
.meal-items-list::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

.meal-item-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    animation: slideInLeft 0.3s ease-out;
}

.meal-item-name {
    flex: 1;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.meal-item-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.weight-input-wrapper {
    display: flex;
    align-items: center;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 6px;
    padding: 2px 6px;
    border: 1px solid var(--border);
}

.weight-input-wrapper input {
    background: transparent;
    border: none;
    color: var(--text);
    width: 45px;
    font-size: 0.85rem;
    text-align: right;
    padding: 2px;
    outline: none;
}

.weight-unit {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-left: 2px;
}

.remove-item-btn {
    background: transparent;
    border: none;
    color: #ef4444;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.7;
    transition: opacity 0.2s, background 0.2s;
}

.remove-item-btn:hover {
    opacity: 1;
    background: rgba(239, 68, 68, 0.1);
}

.empty-meal-msg {
    text-align: center;
    padding: 20px;
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
}

#toggle-meal-btn {
    transition: transform 0.3s ease;
}

.meal-content:not(.collapsed) + .meal-builder-header #toggle-meal-btn {
    transform: rotate(180deg);
}

/* Add-to-meal button in search results */
.add-meal-btn {
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 6px;
    padding: 4px 10px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    font-weight: 600;
}

.add-meal-btn:hover {
    background: var(--primary-hover);
    transform: scale(1.05);
}

.add-meal-btn:active {
    transform: scale(0.95);
}

.food-item-footer {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-10px); }
    to { opacity: 1; transform: translateX(0); }
}

@media (max-width: 600px) {
    .meal-builder-tray {
        margin: 0 12px 10px 12px;
    }
    .meal-item-name {
        font-size: 0.8rem;
    }
}

.meal-builder-footer {
    padding: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: center;
    background: rgba(255, 255, 255, 0.02);
}

.primary-btn-sm {
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 8px 16px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
}

.primary-btn-sm:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.primary-btn-sm:active {
    transform: translateY(0);
}