:root {
    --primary-color: #2C3E50; /* Deep, cool blue */
    --secondary-color: #1ABC9C; /* Vibrant teal/aqua for accents */
    --accent-color: #E74C3C; /* Contrasting accent for specific highlights if needed */
    --background-color: #F4F7F6; /* Light, clean gray */
    --card-background: #FFFFFF;
    --text-color: #333333;
    --text-light: #555555;
    --text-on-primary: #FFFFFF;
    --text-on-secondary: #FFFFFF;
    --border-color: #DEE2E6; /* Softer border */
    --success-color: #28A745;
    --error-color: #DC3545;
    --info-color: #17A2B8;
    --warning-color: #FFC107;
    --font-family: 'Poppins', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --border-radius: 8px; /* Slightly sharper for a more modern feel */
    --box-shadow: 0 5px 15px rgba(44, 62, 80, 0.07); /* Even more subtle shadow */
    --input-height: 44px;
    --container-max-width: 1140px;
    --warning-bg-subtle: #FFF3CD; /* For API key warning */
    --warning-border-subtle: #FFEEBA;
    --warning-text-subtle: #856404;
}

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

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

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    padding-top: 75px; /* Adjusted for header */
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-header {
    background: var(--primary-color);
    color: var(--text-on-primary);
    padding: 12px 25px;
    position: fixed;
    top: 0; left: 0; width: 100%;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    height: 65px;
}
.main-header .logo {
    font-size: 1.6rem;
    font-weight: 600;
    display: flex;
    align-items: center;
}
.main-header .logo i {
    margin-right: 12px;
    color: var(--secondary-color);
    font-size: 1.8rem;
}
.main-header .app-title {
    font-size: 0.85rem;
    font-weight: 400;
    opacity: 0.8;
    margin-left: 8px;
    align-self: flex-end; /* Aligns with bottom of Vochai */
    padding-bottom: 2px;  /* Fine-tune alignment */
}

.api-key-section {
    display: flex; align-items: center; gap: 10px;
}
.api-key-section input[type="password"],
.api-key-section input[type="text"] {
    padding: 8px 12px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    background-color: rgba(255,255,255,0.9);
    color: var(--text-color);
    min-width: 200px;
    height: 34px;
    font-size: 0.85rem;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.api-key-section input[type="password"].api-key-missing,
.api-key-section input[type="text"].api-key-missing {
    border-color: var(--error-color);
    box-shadow: 0 0 0 2.5px rgba(220, 53, 69, 0.15);
}
.api-key-section button {
    background-color: transparent;
    color: var(--text-on-primary);
    border: 1px solid rgba(255,255,255,0.6);
    padding: 0 12px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.25s ease, border-color 0.25s ease;
    height: 34px;
    font-weight: 500;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
}
.api-key-section button:hover {
    background-color: rgba(255,255,255,0.1);
    border-color: var(--text-on-primary);
}
.api-key-section button i { margin-right: 6px; }

.api-key-message {
    font-size: 0.75rem;
    color: var(--warning-text-subtle);
    background-color: var(--warning-bg-subtle);
    border: 1px solid var(--warning-border-subtle);
    padding: 5px 10px;
    border-radius: var(--border-radius);
    margin-top: 5px; 
    text-align: center;
    display: none; /* Hidden by default */
}
.api-key-message.visible {
    display: block;
}

.btn:disabled,
.btn[disabled] {
    background-color: #B0BEC5; /* Material Design disabled color */
    color: #78909C;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
    opacity: 0.7;
}

.container {
    max-width: var(--container-max-width);
    margin: 25px auto;
    padding: 0 20px;
    width: 100%;
    flex-grow: 1;
}

.page-intro {
    text-align: center; margin-bottom: 30px;
    padding: 15px 0;
}
.page-intro h1 {
    font-size: 1.9rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 4px;
}
.page-intro p {
    font-size: 1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.card {
    background: var(--card-background);
    border-radius: var(--border-radius);
    padding: 25px 30px;
    box-shadow: var(--box-shadow);
    margin-bottom: 25px;
}

.card-header {
    display: flex; align-items: center; margin-bottom: 20px;
    padding-bottom: 12px; border-bottom: 1px solid var(--border-color);
}
.card-header i {
    font-size: 1.5rem; margin-right: 12px;
    color: var(--secondary-color); width: 30px; text-align: center;
}
.card-header h2 {
    font-size: 1.2rem; font-weight: 600; color: var(--primary-color);
}

.form-grid { display: grid; grid-template-columns: 1fr; gap: 18px; }

.form-group label {
    display: block; margin-bottom: 6px; font-weight: 500;
    color: var(--text-light); font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.form-group input, .form-group textarea {
    width: 100%; padding: 0 12px; border: 1px solid var(--border-color);
    border-radius: var(--border-radius); font-size: 0.9rem; font-family: var(--font-family);
    transition: border-color 0.25s ease, box-shadow 0.25s ease; height: var(--input-height);
    background-color: #FCFCFC;
}
.form-group textarea {
    padding-top: 10px; padding-bottom: 10px; resize: vertical; min-height: 90px;
}
.form-group input:focus, .form-group textarea:focus {
    outline: none; border-color: var(--secondary-color);
    box-shadow: 0 0 0 2.5px rgba(26, 188, 156, 0.15);
}

.form-checkbox {
    display: flex; align-items: center; gap: 8px; margin-top: 12px; margin-bottom:18px;
}
.form-checkbox input[type="checkbox"] {
    width: auto; height: auto; accent-color: var(--secondary-color);
    transform: scale(1.05);
    margin-top: -2px; /* Align better with label */
}
.form-checkbox label {
    font-weight: 400; color: var(--text-color); font-size: 0.9rem; margin-bottom:0;
    text-transform: none; letter-spacing: 0;
}

#scheduledDateTimeGroup { display: none; }
#scheduledDateTimeGroup.visible { display: block; margin-top: -10px; margin-bottom: 18px; }

.btn {
    background: var(--secondary-color);
    color: var(--text-on-secondary); border: none; padding: 0 25px; height: var(--input-height);
    border-radius: var(--border-radius); font-size: 0.95rem; font-weight: 500;
    cursor: pointer; transition: all 0.25s ease; display: inline-flex;
    align-items: center; justify-content: center; gap: 8px; text-transform: capitalize;
    letter-spacing: 0.3px;
}
.btn:hover {
    background: #16A085; /* Darken secondary */
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(26, 188, 156, 0.25);
}
.btn:active { transform: translateY(0); box-shadow: none; }
.btn:disabled {
    background: var(--text-light) !important;
    color: var(--card-background) !important;
    cursor: not-allowed !important;
    transform: none !important;
    box-shadow: none !important;
    opacity: 0.6;
}
.btn i { font-size: 1em; }

.btn.btn-primary {
    background: var(--primary-color);
    color: var(--text-on-primary);
}
.btn.btn-primary:hover {
    background: #22303E; /* Darken primary */
    box-shadow: 0 3px 10px rgba(44, 62, 80, 0.25);
}
.btn.btn-danger {
    background: var(--error-color);
    color: var(--text-on-primary);
}
.btn.btn-danger:hover {
    background: #C82333; /* Darken error */
    box-shadow: 0 3px 10px rgba(220, 53, 69, 0.25);
}

.actions-bar {
    margin-top: 20px;
    display: flex;
    justify-content: flex-end;
}

.bot-list { display: grid; gap: 12px; margin-top: 15px; }
.bot-item {
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--secondary-color); /* Accent border */
    border-radius: var(--border-radius);
    padding: 15px 20px;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 15px;
    align-items: center;
    transition: all 0.2s ease-in-out;
}
.bot-item:hover {
    border-left-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(44,62,80,0.06);
    transform: translateY(-2px);
}
.bot-info > div {
    margin-bottom: 4px; display: flex; align-items: center; gap: 10px; font-size: 0.85rem;
    color: var(--text-light);
}
.bot-info i {
    color: var(--secondary-color); width: 16px; text-align: center; opacity: 0.8;
}
.bot-id strong { color: var(--primary-color); font-weight: 600;}
.bot-status-tag {
    padding: 2px 8px; border-radius: 15px;
    font-size: 0.7rem; font-weight: 600; color: white; text-transform: uppercase; letter-spacing: 0.4px;
}
.status-in_call_recording { background-color: var(--success-color); }
.status-other { background-color: var(--text-light); }

.bot-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.bot-actions .btn {
    height: 36px; 
    padding: 0 12px; 
    font-size: 0.8rem;
    white-space: nowrap;
}

.datetime-input { position: relative; }
.datetime-input input[type="datetime-local"] { padding-right: 30px; }
.datetime-input .icon-overlay {
    position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
    color: var(--secondary-color); pointer-events: none; font-size: 0.9em;
}

.alerts-container {
    position: fixed; top: 80px; /* Adjusted for header */
    right: 20px; z-index: 2000;
    width: 340px; display: flex; flex-direction: column; gap: 10px;
}
.alert {
    padding: 10px 15px; border-radius: var(--border-radius);
    box-shadow: 0 4px 10px rgba(0,0,0,0.08);
    color: white; display: flex; align-items: center; gap: 10px;
    opacity: 0; transform: translateX(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    font-size: 0.9rem;
}
.alert.show { opacity: 1; transform: translateX(0); }
.alert-success { background: var(--success-color); }
.alert-error { background: var(--error-color); }
.alert-info { background: var(--info-color); }
.alert i { font-size: 1rem; }

.loading-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(244, 247, 246, 0.75);
    display: flex; justify-content: center; align-items: center; z-index: 3000;
    opacity: 0; visibility: hidden; transition: opacity 0.15s ease, visibility 0.15s ease;
}
.loading-overlay.show { opacity: 1; visibility: visible; }
.spinner {
    border: 3px solid rgba(0,0,0,0.1);
    border-top: 3px solid var(--secondary-color);
    border-radius: 50%; width: 40px; height: 40px; animation: spin 0.7s linear infinite;
}
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

.empty-state {
    text-align: center; color: var(--text-light); padding: 25px 20px;
    border: 1.5px dashed var(--border-color); border-radius: var(--border-radius); margin-top: 15px;
    background-color: var(--card-background);
}
.empty-state i {
    font-size: 2.2rem; margin-bottom: 10px; opacity: 0.5; color: var(--secondary-color);
}
.empty-state p { font-size: 0.9rem; line-height: 1.5; }

.main-footer {
    text-align: center;
    padding: 20px;
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: auto; /* Pushes footer to bottom if content is short */
    border-top: 1px solid var(--border-color);
    background-color: var(--card-background);
}

/* PDF Upload Styles */
.form-help {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-top: 4px;
    line-height: 1.4;
}

.file-upload-area {
    position: relative;
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    text-align: center;
    background-color: var(--background-color);
    transition: all 0.3s ease;
    cursor: pointer;
}

.file-upload-area:hover {
    border-color: var(--secondary-color);
    background-color: rgba(26, 188, 156, 0.05);
}

.file-upload-area.drag-over {
    border-color: var(--secondary-color);
    background-color: rgba(26, 188, 156, 0.1);
    transform: scale(1.02);
}

.file-upload-area input[type="file"] {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.upload-placeholder {
    color: var(--text-light);
}

.upload-placeholder i {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 10px;
    opacity: 0.7;
}

.upload-placeholder p {
    margin: 0 0 5px 0;
    font-weight: 500;
    color: var(--text-color);
}

.upload-placeholder small {
    font-size: 0.8rem;
    opacity: 0.8;
}

.selected-files {
    margin-top: 15px;
    text-align: left;
}

.files-header {
    margin-bottom: 10px;
    color: var(--primary-color);
    font-size: 0.9rem;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 5px;
    font-size: 0.85rem;
    position: relative;
}

.file-item i {
    color: var(--error-color);
    font-size: 1.1rem;
}

.file-name {
    flex: 1;
    color: var(--text-color);
    font-weight: 500;
}

.file-size {
    color: var(--text-light);
    font-size: 0.8rem;
}

.remove-file-btn {
    background: var(--error-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.7rem;
    margin-left: auto;
    transition: all 0.2s ease;
}

.remove-file-btn:hover {
    background: #C82333;
    transform: scale(1.1);
}

.remove-file-btn i {
    color: white !important;
    font-size: 0.7rem;
}

.btn.btn-secondary {
    background: var(--text-light);
    color: var(--text-on-primary);
}

.btn.btn-secondary:hover {
    background: #495057;
    box-shadow: 0 3px 10px rgba(85, 85, 85, 0.25);
}

/* Form grid adjustments for upload form */
.upload-pdfs-card .form-grid {
    grid-template-columns: 1fr;
}

.upload-pdfs-card .actions-bar {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    align-items: center;
}

@media (max-width: 992px) {
    .container {
        margin-top: 20px;
        margin-bottom: 20px;
    }
}

@media (max-width: 768px) {
    body { padding-top: 105px; /* Adjusted for taller responsive header */ }
    .main-header {
        flex-direction: column; align-items: flex-start; padding-bottom: 10px; height: auto;
    }
    .main-header .logo { margin-bottom: 8px; font-size: 1.4rem;}
    .main-header .app-title { font-size: 0.75rem; }
    .api-key-section { width: 100%; gap: 8px; }
    .api-key-section input[type="password"],
    .api-key-section input[type="text"] { flex-grow: 1; min-width: 120px; }
    .api-key-section button { padding: 0 10px; }

    .page-intro h1 { font-size: 1.6rem; }
    .page-intro p { font-size: 0.9rem; }
    
    .card { padding: 20px; }
    .card-header h2 { font-size: 1.1rem; }
    .card-header i { font-size: 1.3rem; margin-right: 10px; }

    .bot-item { grid-template-columns: 1fr; gap:12px; padding: 15px; }
    .bot-actions { 
        justify-self: flex-start; 
        margin-top: 8px; 
        flex-wrap: wrap;
        width: 100%;
    }

    /* PDF Upload responsive styles */
    .upload-pdfs-card .actions-bar {
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
    }
    
    .upload-pdfs-card .actions-bar .btn {
        width: 100%;
        justify-content: center;
    }
    
    .file-upload-area {
        padding: 15px;
    }
    
    .upload-placeholder i {
        font-size: 1.5rem;
    }
    .bot-actions .btn { 
        flex: 1;
        min-width: 120px;
    }

    .alerts-container { width: calc(100% - 30px); left: 15px; right: 15px; top: 115px; }
}

@media (max-width: 480px) {
    .api-key-section {
        flex-wrap: wrap;
    }
    .api-key-section input[type="password"],
    .api-key-section input[type="text"] {
        width: 100%;
        margin-bottom: 8px;
    }
    .api-key-section button {
        flex-grow: 1;
    }
    body { padding-top: 145px; } /* Adjust for even taller header */
    .alerts-container { top: 155px; }
}