/* Buttons */
.btn {
    width: 100%;
    padding: 0.875rem 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    color: var(--white);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(107, 115, 255, 0.3);
}

.btn-secondary {
    background: var(--dark-gray);
    color: var(--white);
    border: 1px solid var(--input-border);
}

.btn-secondary:hover {
    background: var(--input-border);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    width: auto;
}

/* Form Elements */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    color: var(--white);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    background: rgba(26, 26, 26, 0.8);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    color: var(--white);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(107, 115, 255, 0.2);
}

.form-input::placeholder {
    color: var(--light-gray);
}

/* Cards */
.card {
    background: var(--dark-gray);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--input-border);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.card-clickable {
    cursor: pointer;
}

.card-clickable:hover {
    border-color: var(--primary);
}

/* Loading States */
.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(107, 115, 255, 0.3);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Messages */
.error-message {
    background: rgba(255, 107, 107, 0.1);
    border: 1px solid var(--error);
    border-radius: 8px;
    padding: 0.75rem;
    color: var(--error);
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.success-message {
    background: rgba(78, 205, 196, 0.1);
    border: 1px solid var(--success);
    border-radius: 8px;
    padding: 0.75rem;
    color: var(--success);
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.info-message {
    background: rgba(107, 115, 255, 0.1);
    border: 1px solid var(--primary);
    border-radius: 8px;
    padding: 0.75rem;
    color: var(--primary);
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

/* Authentication Toggle */
.auth-toggle {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--light-gray);
}

.auth-toggle button {
    background: none;
    border: none;
    color: var(--primary);
    cursor: pointer;
    text-decoration: underline;
    font-size: inherit;
    padding: 0;
}

.auth-toggle button:hover {
    color: var(--secondary);
}

/* Dashboard Cards */
.dashboard-card {
    background: var(--dark-gray);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--input-border);
    transition: all 0.3s ease;
    cursor: pointer;
}

.dashboard-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border-color: var(--primary);
}

.card-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.card-description {
    color: var(--light-gray);
    font-size: 0.875rem;
    line-height: 1.5;
}

/* Statistics Components */
.stat-card {
    background: var(--dark-gray);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--input-border);
    text-align: center;
}

.stat-emoji {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary);
    margin-bottom: 0.25rem;
}

.stat-label {
    color: var(--light-gray);
    font-size: 0.875rem;
}

/* Filter Buttons */
.filter-btn {
    padding: 0.5rem 1rem;
    background: var(--dark-gray);
    border: 1px solid var(--input-border);
    border-radius: 6px;
    color: var(--white);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.875rem;
}

.filter-btn.active {
    background: var(--primary);
    border-color: var(--primary);
}

.filter-btn:hover {
    border-color: var(--primary);
}

/* Navigation Buttons */
.back-btn {
    background: var(--dark-gray);
    border: none;
    color: var(--white);
    padding: 0.5rem;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.back-btn:hover {
    background: var(--input-border);
}

.logout-btn {
    background: var(--error);
    color: var(--white);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.3s ease;
}

.logout-btn:hover {
    background: #e74c3c;
}

/* Connection Items */
.connection-item {
    background: var(--dark-gray);
    border-radius: 12px;
    padding: 1rem;
    border: 1px solid var(--input-border);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.connection-avatar {
    width: 48px;
    height: 48px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.25rem;
    color: var(--white);
}

.connection-info {
    flex: 1;
}

.connection-name {
    font-weight: 600;
    color: var(--white);
    margin-bottom: 0.25rem;
}

.connection-status {
    color: var(--light-gray);
    font-size: 0.875rem;
}

/* Download Buttons */
.download-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    background: var(--dark-gray);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s ease;
}

.download-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

/* No Data State */
.no-data {
    text-align: center;
    color: var(--light-gray);
    padding: 2rem;
    font-style: italic;
}

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

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}