/* Basic Reset & Variables */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
    --primary-green: #4CAF50; --dark-green: #388E3C; --light-green: #C8E6C9;
    --text-light: #ffffff; --text-dark: #333333; --background-light: #f4f7f6;
    --background-card: #ffffff; --glow-color: rgba(76, 175, 80, 0.4);
    --shadow-color: rgba(0, 0, 0, 0.1); --border-radius-main: 50px; --border-radius-card: 15px;
}

html { height: 100%; }
body {
    font-family: 'Poppins', sans-serif; background-color: var(--background-light); color: var(--text-dark);
    line-height: 1.6; padding-top: 100px; transition: background-color 0.3s ease;
    display: flex; flex-direction: column; min-height: 100vh; /* Sticky footer */
}
main { max-width: 1100px; width: 100%; margin: 30px auto; padding: 0 20px; flex-grow: 1; /* Sticky footer */ }

/* Header Styling */
#main-header { position: fixed; top: 15px; left: 50%; transform: translateX(-50%); width: 90%; max-width: 1100px; background: linear-gradient(135deg, var(--primary-green), var(--dark-green)); color: var(--text-light); padding: 10px 25px; border-radius: var(--border-radius-main); display: flex; justify-content: space-between; align-items: center; z-index: 1000; box-shadow: 0 5px 20px var(--shadow-color), 0 0 15px var(--glow-color); transition: top 0.3s ease, box-shadow 0.3s ease; }
#main-header h1 { font-size: 1.6em; font-weight: 600; cursor: pointer; text-shadow: 1px 1px 2px rgba(0,0,0,0.2); margin: 0; flex-shrink: 1; min-width: 100px; text-align: center; }
#main-nav { display: flex; align-items: center; flex-grow: 1; justify-content: flex-end; gap: 20px; }
.nav-right { display: flex; align-items: center; gap: 15px; }
#nav-links { list-style: none; display: flex; gap: 20px; margin: 0; padding: 0; }
#nav-links li a { color: var(--text-light); text-decoration: none; font-weight: 400; padding: 5px 10px; border-radius: 5px; transition: background-color 0.3s ease, transform 0.2s ease, font-weight 0.2s; position: relative; white-space: nowrap; }
#nav-links li a::after { content: ''; position: absolute; width: 0; height: 2px; bottom: -2px; left: 50%; transform: translateX(-50%); background-color: var(--light-green); transition: width 0.3s ease; }
#nav-links li a:hover::after { width: 80%; }
#nav-links li a:hover, #nav-links li a.active { transform: translateY(-2px); font-weight: 600; }
#nav-links li a.active::after { width: 80%; }
#language-selector { padding: 6px 10px; border-radius: 5px; border: 1px solid var(--light-green); background-color: rgba(255, 255, 255, 0.9); color: var(--text-dark); cursor: pointer; font-size: 0.9em; transition: box-shadow 0.3s ease; }
#language-selector:focus { outline: none; box-shadow: 0 0 8px var(--glow-color); }
#logout-button { padding: 6px 15px; background-color: #f44336; color: white; border: none; border-radius: 5px; cursor: pointer; font-weight: 500; transition: background-color 0.3s ease, transform 0.2s ease; }
#logout-button:hover { background-color: #d32f2f; transform: translateY(-1px); }

/* Burger Menu */
#burger-menu { display: none; background: none; border: none; cursor: pointer; padding: 5px; margin-right: 10px; z-index: 1001; order: -1; }
#burger-menu span { display: block; width: 25px; height: 3px; background-color: var(--text-light); margin: 5px 0; border-radius: 3px; transition: all 0.3s ease; }
#burger-menu.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
#burger-menu.active span:nth-child(2) { opacity: 0; }
#burger-menu.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* Main Content & Pages */
.page-section { display: none; opacity: 0; animation: fadeIn 0.5s ease-in-out forwards; padding-bottom: 30px; }
.page-section.active { display: block; opacity: 1; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
h2 { color: var(--dark-green); text-align: center; margin-bottom: 30px; font-weight: 600; }
h3 { color: var(--primary-green); margin-bottom: 15px; font-weight: 600; }

/* Landing Page (Login/Signup) */
#landing-page { text-align: center; padding: 40px 0; }
.auth-form { max-width: 450px; margin: 0 auto 20px auto; text-align: left; }
.auth-form .form-container { gap: 18px; }
.auth-form label { font-weight: 500; }
.auth-form input[type="email"], .auth-form input[type="password"] { padding: 12px 15px; border: 1px solid #ccc; border-radius: 8px; font-size: 1.05em; }
.auth-actions { display: flex; gap: 15px; margin-top: 15px; justify-content: center; }
.auth-button { flex: 1; padding: 12px 20px; font-size: 1.05em; cursor: pointer; border: none; border-radius: 8px; background: linear-gradient(135deg, var(--primary-green), var(--dark-green)); color: var(--text-light); transition: transform 0.2s ease, box-shadow 0.3s ease; box-shadow: 0 3px 8px var(--shadow-color); font-weight: 500; }
.auth-button:hover { transform: translateY(-2px); box-shadow: 0 6px 12px var(--shadow-color), 0 0 8px var(--glow-color); }
.auth-button.secondary { background: #f1f1f1; color: var(--text-dark); border: 1px solid #ccc; box-shadow: 0 2px 5px var(--shadow-color); }
.auth-button.secondary:hover { background-color: #e0e0e0; box-shadow: 0 4px 8px var(--shadow-color), 0 0 5px rgba(0,0,0,0.1); }
.error-message { color: #d32f2f; font-size: 0.9em; margin-top: 10px; text-align: center; font-weight: 500; min-height: 1.2em; /* Reserve space */ }
.auth-note { font-size: 0.9em; color: #666; margin-top: 15px; text-align: center; }

/* Role Selection (Post-Login) */
#role-selection-page { text-align: center; padding: 40px 0; }
#role-selection-page h2 { font-size: 1.8em; margin-bottom: 15px; }
#role-selection-page p { margin-bottom: 30px; color: #555; }
.role-selection { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; }
.role-button { padding: 15px 30px; font-size: 1.1em; cursor: pointer; border: none; border-radius: var(--border-radius-card); background: linear-gradient(135deg, var(--primary-green), var(--dark-green)); color: var(--text-light); transition: transform 0.3s ease, box-shadow 0.3s ease; box-shadow: 0 4px 10px var(--shadow-color); }
.role-button:hover { transform: translateY(-3px) scale(1.03); box-shadow: 0 8px 15px var(--shadow-color), 0 0 10px var(--glow-color); }

/* General Card Styling */
.card { background-color: var(--background-card); padding: 25px; margin-bottom: 25px; border-radius: var(--border-radius-card); box-shadow: 0 4px 15px var(--shadow-color); transition: box-shadow 0.3s ease, transform 0.3s ease; }
.card:hover { box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12), 0 0 8px var(--glow-color); }

/* Hub Pages */
.hub-description { text-align: center; margin-bottom: 30px; font-size: 1.1em; color: #555; }
.hub-actions { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; max-width: 800px; margin: 0 auto; }
.hub-button { padding: 20px 15px; font-size: 1.1em; cursor: pointer; border: none; border-radius: var(--border-radius-card); background: linear-gradient(135deg, var(--primary-green), var(--dark-green)); color: var(--text-light); transition: transform 0.3s ease, box-shadow 0.3s ease; box-shadow: 0 4px 10px var(--shadow-color); text-align: center; font-weight: 500; }
.hub-button:hover { transform: translateY(-4px) scale(1.03); box-shadow: 0 8px 18px var(--shadow-color), 0 0 12px var(--glow-color); }

/* Back Buttons */
.back-to-hub { display: inline-block; margin-top: 25px; padding: 8px 18px; background-color: #f1f1f1; color: var(--text-dark); border: 1px solid #ccc; border-radius: 20px; cursor: pointer; font-size: 0.9em; font-weight: 500; transition: background-color 0.3s ease, transform 0.2s ease; }
.back-to-hub:hover { background-color: #e0e0e0; transform: translateX(-3px); }
.back-to-hub[data-user-type="farmer"], .back-to-hub[data-user-type="consumer"] { display: none; }
.back-button { display: inline-block; margin-top: 25px; padding: 8px 18px; background-color: #e0e0e0; color: var(--text-dark); border: 1px solid #bdbdbd; border-radius: 20px; cursor: pointer; font-size: 0.9em; font-weight: 500; transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.2s ease; }
.back-button:hover { background-color: #ccc; transform: translateX(-2px); box-shadow: 1px 1px 3px rgba(0,0,0,0.1); }

/* Forms */
.form-container form { display: flex; flex-direction: column; gap: 15px; }
.form-container label { font-weight: 600; color: var(--dark-green); font-size: 0.95em; }
.form-container input[type="text"], .form-container input[type="number"], .form-container input[type="url"] { padding: 10px 12px; border: 1px solid #ccc; border-radius: 6px; font-size: 1em; transition: border-color 0.3s ease, box-shadow 0.3s ease; }
.form-container input:focus { outline: none; border-color: var(--primary-green); box-shadow: 0 0 5px var(--glow-color); }
.form-container button[type="submit"] { padding: 12px 20px; background-color: var(--primary-green); color: white; border: none; border-radius: 6px; cursor: pointer; font-size: 1em; font-weight: 600; transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease; margin-top: 10px; }
.form-container button[type="submit"]:hover { background-color: var(--dark-green); transform: translateY(-2px); box-shadow: 0 4px 8px var(--shadow-color); }

/* Listings Display */
.my-listings-container, .listings-view { min-height: 150px; }
.my-listings-container h3, .listings-view h3 { margin-bottom: 20px; padding-bottom: 10px; border-bottom: 1px solid var(--light-green); }
#my-listings-farmer-view > p, #crop-listings-consumer-view > p { color: #777; font-style: italic; text-align: center; padding: 20px; }
.listing-item { border: 1px solid var(--light-green); padding: 15px; margin-bottom: 15px; border-radius: 8px; background-color: #f9fdf9; display: flex; gap: 15px; align-items: flex-start; transition: background-color 0.3s ease; }
.listing-item:hover { background-color: #e8f5e9; }
.listing-item img { width: 80px; height: 80px; border-radius: 5px; object-fit: cover; border: 1px solid #eee; flex-shrink: 0; }
.listing-details { flex-grow: 1; min-width: 0; }
.listing-details h4 { color: var(--dark-green); margin-bottom: 5px; }
.listing-details p { font-size: 0.9em; margin-bottom: 3px; color: #555; word-wrap: break-word; }
.listing-details p strong { color: var(--text-dark); }
.listing-actions { margin-top: 10px; text-align: right; }
.listing-actions button { padding: 6px 12px; margin-left: 10px; font-size: 0.85em; border-radius: 5px; cursor: pointer; transition: background-color 0.3s ease, transform 0.2s ease; }
.delete-btn { background-color: #ef9a9a; color: #c62828; border: 1px solid #e57373; }
.delete-btn:hover { background-color: #e57373; transform: scale(1.05); }
.buy-btn, .rent-btn { background-color: var(--light-green); color: var(--dark-green); border: 1px solid var(--primary-green); font-weight: 500; }
.buy-btn:hover, .rent-btn:hover { background-color: var(--primary-green); color: white; transform: scale(1.05); }

/* Schemes & Weather */
#schemes-page .card a.learn-more, #weather-page .card { margin-top: 15px; }
a.learn-more { display: inline-block; margin-top: 10px; color: var(--primary-green); text-decoration: none; font-weight: 600; transition: color 0.3s ease; }
a.learn-more:hover { color: var(--dark-green); text-decoration: underline; }
#weather-info p { margin-bottom: 8px; font-size: 1.05em; }
#weather-info span { font-weight: normal; }
#weather-error { font-size: 0.95em; }
#weather-info span[data-translate="weather_loading"], #weather-info span[data-translate="weather_unavailable"], #weather-info span[data-translate="weather_permission_denied"] { font-style: italic; color: #666; }

/* Team Page Styles */
#team-page { text-align: center; }
.team-intro { max-width: 600px; margin: 0 auto 30px auto; text-align: center; }
.team-intro h3 { color: var(--dark-green); margin-bottom: 8px; }
.team-members { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 25px; max-width: 1000px; margin: 0 auto 30px auto; }
.team-member { text-align: center; padding: 20px; }
.team-member h4 { margin-bottom: 15px; color: var(--primary-green); }
.linkedin-link { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; color: #0077b5; font-weight: 500; transition: color 0.3s ease, transform 0.2s ease; }
.linkedin-link:hover { color: #005582; transform: translateY(-1px); }
.linkedin-icon { width: 20px; height: 20px; fill: currentColor; }

/* Chatbot Styles */
#open-chatbot-btn { position: fixed; bottom: 20px; right: 20px; background-color: var(--primary-green); color: white; border: none; border-radius: 50%; width: 60px; height: 60px; font-size: 24px; cursor: pointer; box-shadow: 0 4px 15px var(--shadow-color), 0 0 10px var(--glow-color); display: flex; justify-content: center; align-items: center; z-index: 998; transition: transform 0.3s ease, background-color 0.3s ease; }
#open-chatbot-btn:hover { background-color: var(--dark-green); transform: scale(1.1); }
#chatbot-container { position: fixed; bottom: 90px; right: 20px; width: 350px; max-width: 90vw; height: 450px; max-height: 70vh; background-color: var(--background-card); border-radius: var(--border-radius-card); box-shadow: 0 5px 25px rgba(0, 0, 0, 0.15); display: flex; flex-direction: column; overflow: hidden; z-index: 999; transform: scale(0.95) translateY(10px); opacity: 0; transition: transform 0.3s ease, opacity 0.3s ease; border: 1px solid var(--light-green); }
#chatbot-container.active { transform: scale(1) translateY(0); opacity: 1; }
#chatbot-header { background: linear-gradient(135deg, var(--primary-green), var(--dark-green)); color: white; padding: 10px 15px; display: flex; justify-content: space-between; align-items: center; font-weight: 600; }
#close-chatbot { background: none; border: none; color: white; font-size: 24px; cursor: pointer; line-height: 1; opacity: 0.8; transition: opacity 0.3s ease; }
#close-chatbot:hover { opacity: 1; }
#chatbot-messages { flex-grow: 1; padding: 15px; overflow-y: auto; background-color: #fdfdfd; }
.message { margin-bottom: 12px; max-width: 85%; word-wrap: break-word; }
.message p { padding: 10px 14px; border-radius: 18px; font-size: 0.95em; line-height: 1.4; }
.user-message { margin-left: auto; text-align: right; }
.user-message p { background-color: var(--primary-green); color: white; border-bottom-right-radius: 5px; }
.bot-message { margin-right: auto; }
.bot-message p { background-color: #e0e0e0; color: var(--text-dark); border-bottom-left-radius: 5px; }
.bot-message.thinking p { font-style: italic; color: #666; background-color: #f0f0f0; }
#chatbot-input { display: flex; border-top: 1px solid #eee; padding: 10px; background-color: #f9f9f9; }
#chat-input-field { flex-grow: 1; padding: 10px 12px; border: 1px solid #ccc; border-radius: 20px; margin-right: 8px; font-size: 0.95em; transition: border-color 0.3s ease, box-shadow 0.3s ease; }
#chat-input-field:focus { outline: none; border-color: var(--primary-green); box-shadow: 0 0 5px var(--glow-color); }
#chat-input-field:disabled { background-color: #f0f0f0; }
#chat-send-btn { padding: 10px 15px; background-color: var(--primary-green); color: white; border: none; border-radius: 20px; cursor: pointer; font-weight: 500; transition: background-color 0.3s ease; }
#chat-send-btn:hover { background-color: var(--dark-green); }
#chat-send-btn:disabled { background-color: #aaa; cursor: not-allowed; }

/* Footer */
footer { text-align: center; margin-top: auto; padding: 20px; background-color: var(--light-green); color: var(--dark-green); font-size: 0.9em; width: 100%; }
footer p { margin: 0; }
footer a { color: var(--dark-green); font-weight: 600; text-decoration: none; transition: color 0.3s ease; }
footer a:hover { color: var(--primary-green); text-decoration: underline; }

/* Utility Classes */
.hidden { display: none !important; }

/* Responsive Design */
@media (max-width: 1024px) { /* Activate burger earlier */
    #main-header { padding: 10px 15px; width: 95%; justify-content: space-between; }
    #burger-menu { display: block; margin-right: 10px; flex-shrink: 0; }
    #main-header h1 { font-size: 1.3em; flex-grow: 1; text-align: left; margin-left: 0; min-width: auto; }
    #main-nav > ul#nav-links { display: none; position: absolute; top: calc(100% + 10px); left: 0; background-color: white; flex-direction: column; width: 200px; padding: 10px 0; border-radius: 10px; box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15); border: 1px solid #eee; gap: 0; z-index: 999; }
    #main-nav > ul#nav-links.show { display: flex; animation: slideDown 0.3s ease-out forwards; }
    @keyframes slideDown { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }
    #nav-links li { width: 100%; }
    #nav-links li a { display: block; padding: 12px 20px; color: var(--text-dark); border-radius: 0; }
    #nav-links li a:hover, #nav-links li a.active { background-color: var(--light-green); color: var(--dark-green); transform: none; }
    #nav-links li a::after { display: none; }
    #main-nav { justify-content: flex-end; flex-grow: 0; flex-shrink: 0; }
    .nav-right { gap: 10px; }
    .hub-actions { grid-template-columns: 1fr; }
    .team-members { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
    #chatbot-container { width: 90vw; height: 70vh; bottom: 70px; right: 5vw; }
    #open-chatbot-btn { width: 55px; height: 55px; bottom: 15px; right: 15px; }
}
@media (max-width: 576px) { /* Fine-tune for very small screens */
    .team-members { grid-template-columns: 1fr; }
    #main-header h1 { font-size: 1.2em; }
    .nav-right { gap: 5px;}
    #language-selector { font-size: 0.8em; padding: 4px 6px;}
    #logout-button { font-size: 0.8em; padding: 4px 8px;}
    footer p { font-size: 0.85em;}
    .auth-form { max-width: 90%; }
    .auth-actions { flex-direction: column; }
}