/* Custom Theme for ScuPlan - Professional Diving Application */

:root {
    /* Light Theme Colors */
    --bg-primary: #f0f4f8;
    --bg-secondary: #ffffff;
    --bg-accent: #e8f4f8;
    --text-primary: #1a1a1a;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --color-primary: #0077b6;
    --color-primary-hover: #005f8a;
    --color-secondary: #90e0ef;
    --color-success: #38a169;
    --color-warning: #d69e2e;
    --color-danger: #e53e3e;
    --color-info: #3182ce;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Dark Theme Colors */
[data-theme="dark"] {
    --bg-primary: #1e1e2f;
    --bg-secondary: #2d3748;
    --bg-accent: #374151;
    --text-primary: #f5f5f5;
    --text-secondary: #e2e8f0;
    --text-muted: #a0aec0;
    --color-primary: #90e0ef;
    --color-primary-hover: #7dd3fc;
    --color-secondary: #0077b6;
    --color-success: #68d391;
    --color-warning: #fbb347;
    --color-danger: #fc8181;
    --color-info: #63b3ed;
    --border-color: #4a5568;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
}

/* Global Styles */
body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Navigation */
.navbar {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--border-color);
}

.navbar-brand {
    color: white !important;
    font-weight: 700;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    transition: all 0.3s ease;
    border-radius: 8px;
    margin: 0 4px;
    padding: 8px 16px !important;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: white !important;
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-1px);
}

/* Cards and Containers */
.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    border-bottom: none;
    border-radius: 12px 12px 0 0 !important;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* Buttons */
.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    box-shadow: var(--shadow-sm);
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
    color: white;
}

.btn-secondary {
    background: linear-gradient(135deg, var(--color-secondary) 0%, #7dd3fc 100%);
    color: var(--text-primary);
}

.btn-success {
    background: linear-gradient(135deg, var(--color-success) 0%, #48bb78 100%);
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, var(--color-warning) 0%, #ed8936 100%);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--color-danger) 0%, #f56565 100%);
    color: white;
}

/* Unit Toggle Button */
.unit-toggle {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 1000;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    border: none;
    border-radius: 50px;
    padding: 12px 20px;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
}

.unit-toggle:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 119, 182, 0.3);
}

/* Theme Toggle Button */
.theme-toggle {
    position: fixed;
    top: 140px;
    right: 20px;
    z-index: 1000;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.theme-toggle:hover {
    transform: rotate(180deg);
    background: var(--color-primary);
    color: white;
}

/* Forms */
.form-control, .form-select {
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    background-color: var(--bg-secondary);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 0.2rem rgba(0, 119, 182, 0.25);
    color: var(--text-primary);
}

.form-label {
    color: var(--text-secondary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.input-group-text {
    background-color: var(--bg-accent);
    border: 2px solid var(--border-color);
    color: var(--text-secondary);
    font-weight: 500;
}

/* Alerts */
.alert {
    border: none;
    border-radius: 12px;
    border-left: 4px solid;
    font-weight: 500;
}

.alert-success {
    background-color: rgba(56, 161, 105, 0.1);
    border-left-color: var(--color-success);
    color: var(--color-success);
}

.alert-warning {
    background-color: rgba(214, 158, 46, 0.1);
    border-left-color: var(--color-warning);
    color: var(--color-warning);
}

.alert-danger {
    background-color: rgba(229, 62, 62, 0.1);
    border-left-color: var(--color-danger);
    color: var(--color-danger);
}

.alert-info {
    background-color: rgba(49, 130, 206, 0.1);
    border-left-color: var(--color-info);
    color: var(--color-info);
}

/* Accordion */
.accordion {
    border-radius: 12px;
    overflow: hidden;
}

.accordion-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
}

.accordion-button {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-weight: 600;
    border: none;
    padding: 1rem 1.5rem;
}

.accordion-button:not(.collapsed) {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: 0 0 0 0.25rem rgba(0, 119, 182, 0.25);
}

.accordion-body {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    padding: 1.5rem;
}

/* Tables */
.table {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.table th {
    background-color: var(--bg-accent);
    color: var(--text-secondary);
    font-weight: 600;
    border-bottom: 2px solid var(--border-color);
}

.table td {
    border-bottom: 1px solid var(--border-color);
}

/* Chat Interface */
.chat-container {
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.chat-messages {
    background-color: var(--bg-primary);
    max-height: 400px;
    overflow-y: auto;
    padding: 1rem;
    border-radius: 8px;
}

.message {
    margin-bottom: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 18px;
    max-width: 80%;
    word-wrap: break-word;
}

.user-message {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
    color: white;
    margin-left: auto;
    text-align: right;
}

.bot-message {
    background-color: var(--bg-accent);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

/* Simulator */
.simulator-container {
    background: linear-gradient(180deg, #87ceeb 0%, #4682b4 100%);
    border-radius: 12px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.depth-indicator {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-weight: 600;
    box-shadow: var(--shadow-md);
}

/* Responsive Design */
@media (max-width: 768px) {
    .unit-toggle {
        top: 60px;
        right: 10px;
        padding: 8px 16px;
        font-size: 0.9rem;
    }
    
    .theme-toggle {
        top: 110px;
        right: 10px;
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .message {
        max-width: 90%;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-in {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

/* Utility Classes */
.text-primary-custom { color: var(--color-primary) !important; }
.text-secondary-custom { color: var(--color-secondary) !important; }
.bg-primary-custom { background-color: var(--color-primary) !important; }
.bg-secondary-custom { background-color: var(--color-secondary) !important; }
.border-primary-custom { border-color: var(--color-primary) !important; }
.shadow-custom { box-shadow: var(--shadow-md) !important; }