/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Salesforce Lightning Design System Colors */
    --sf-blue: #0176D3;
    --sf-blue-dark: #032D60;
    --sf-blue-hover: #0B5CAB;
    --sf-cloud-blue: #04E1CB;
    --sf-error: #EA001E;
    --sf-success: #2E844A;
    --sf-warning: #FFA429;
    --sf-border: #DDDBDA;
    --sf-text-primary: #181818;
    --sf-text-secondary: #747474;
    --sf-bg-primary: #FFFFFF;
    --sf-bg-secondary: #F3F2F2;
    --sf-bg-alt: #FAFAF9;
    --sf-shadow: rgba(0, 0, 0, 0.1);

    /* Map to semantic names */
    --primary-color: var(--sf-blue);
    --primary-hover: var(--sf-blue-hover);
    --error-color: var(--sf-error);
    --success-color: var(--sf-success);
    --border-color: var(--sf-border);
    --text-primary: var(--sf-text-primary);
    --text-secondary: var(--sf-text-secondary);
    --bg-primary: var(--sf-bg-primary);
    --bg-secondary: var(--sf-bg-secondary);
}

body {
    font-family: 'Roboto', 'Salesforce Sans', Arial, sans-serif;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    min-height: 100vh;
    font-weight: 400;
}

/* Container */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--sf-blue-dark);
    border-radius: 4px;
    box-shadow: 0 2px 4px var(--sf-shadow);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: #FFFFFF;
    font-weight: 300;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.header-icon {
    font-size: 2.5rem;
}

.subtitle {
    color: var(--sf-cloud-blue);
    font-size: 1.1rem;
    font-weight: 400;
}

/* Main Content */
main {
    flex: 1;
    background: var(--bg-primary);
    border-radius: 4px;
    padding: 2rem;
    box-shadow: 0 2px 4px var(--sf-shadow), 0 0 1px var(--sf-shadow);
    border: 1px solid var(--sf-border);
}

main h2 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--sf-blue-dark);
}

/* Screen Management */
.screen {
    display: block;
}

.screen.hidden {
    display: none;
}

/* Auth Screen */
.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.auth-card {
    max-width: 400px;
    width: 100%;
    padding: 2rem;
    background: var(--sf-bg-alt);
    border: 1px solid var(--sf-border);
    border-radius: 4px;
    box-shadow: 0 4px 8px var(--sf-shadow);
}

.auth-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.auth-icon {
    font-size: 3rem;
    color: var(--sf-blue);
    display: block;
    margin: 0 auto 0.75rem;
}

.auth-card h2 {
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--sf-blue-dark);
    margin: 0;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--sf-text-primary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--sf-border);
    border-radius: 4px;
    font-size: 0.9375rem;
    font-family: 'Roboto', 'Salesforce Sans', Arial, sans-serif;
    transition: border-color 0.15s, box-shadow 0.15s;
    background-color: var(--sf-bg-primary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--sf-blue);
    box-shadow: 0 0 0 3px rgba(1, 118, 211, 0.1);
}

.form-group textarea {
    resize: vertical;
    line-height: 1.5;
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: 1px solid transparent;
    border-radius: 4px;
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease-in-out;
    text-transform: none;
    letter-spacing: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-icon {
    font-size: 1.25rem;
}

.btn-primary {
    background-color: var(--sf-blue);
    color: white;
    border-color: var(--sf-blue);
}

.btn-primary:hover {
    background-color: var(--sf-blue-hover);
    border-color: var(--sf-blue-hover);
    box-shadow: 0 2px 4px var(--sf-shadow);
}

.btn-primary:active {
    background-color: var(--sf-blue-dark);
    border-color: var(--sf-blue-dark);
}

.btn-primary:disabled {
    background-color: var(--sf-border);
    border-color: var(--sf-border);
    cursor: not-allowed;
    opacity: 0.5;
}

/* Error Messages */
.error-message {
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: none;
}

.error-message.show {
    display: block;
}

/* Loading State */
.loading {
    text-align: center;
    padding: 2rem;
}

.loading.hidden {
    display: none;
}

.spinner {
    width: 48px;
    height: 48px;
    margin: 0 auto 1rem;
    border: 4px solid var(--sf-border);
    border-top-color: var(--sf-blue);
    border-right-color: var(--sf-cloud-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Results */
.results {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid var(--sf-border);
}

.results.hidden {
    display: none;
}

.results h3 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: var(--sf-blue-dark);
    font-weight: 400;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.results-icon {
    font-size: 1.75rem;
}

.results h4 {
    margin-bottom: 1rem;
    margin-top: 1.5rem;
    font-size: 1.125rem;
    color: var(--sf-blue-dark);
    font-weight: 500;
}

.results-section {
    margin-bottom: 2rem;
}

/* Probable Causes */
.causes-section {
    margin-bottom: 2rem;
}

.cause-item {
    background: var(--sf-bg-alt);
    padding: 1.25rem;
    margin-bottom: 1rem;
    border-radius: 4px;
    border-left: 4px solid var(--sf-blue);
    transition: transform 0.15s, box-shadow 0.15s;
    border: 1px solid var(--sf-border);
    border-left-width: 4px;
}

.cause-item:hover {
    transform: translateX(2px);
    box-shadow: 0 2px 8px var(--sf-shadow);
    background: var(--sf-bg-primary);
}

.cause-item strong {
    font-size: 1.05rem;
    color: var(--sf-blue-dark);
    display: inline-block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.cause-item p {
    color: var(--sf-text-secondary);
    margin-top: 0.5rem;
    line-height: 1.6;
}

.confidence-badge {
    display: inline-block;
    padding: 0.25rem 0.625rem;
    border-radius: 4px;
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-left: 0.5rem;
    letter-spacing: 0.5px;
}

.confidence-high {
    background-color: #C9F0D7;
    color: var(--sf-success);
}

.confidence-medium {
    background-color: #FFE59E;
    color: #A46200;
}

.confidence-low {
    background-color: #FED6D7;
    color: var(--sf-error);
}

/* Suggested Response */
.suggested-response {
    background: var(--sf-bg-alt);
    padding: 1.5rem;
    border-radius: 4px;
    margin-bottom: 2rem;
    position: relative;
    border: 1px solid var(--sf-border);
}

.suggested-response h4 {
    margin-top: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--sf-blue-dark);
    font-weight: 500;
}

.copy-btn {
    background: var(--sf-blue);
    color: white;
    border: 1px solid var(--sf-blue);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.15s ease-in-out;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

.copy-btn:hover {
    background-color: var(--sf-blue-hover);
    border-color: var(--sf-blue-hover);
    box-shadow: 0 2px 4px var(--sf-shadow);
}

.copy-btn:active {
    transform: scale(0.97);
}

.suggested-response-text {
    background: white;
    padding: 1rem;
    border-radius: 4px;
    border: 1px solid var(--sf-border);
    margin-top: 1rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-wrap: break-word;
}

/* Logs Summary */
.logs-summary {
    background: var(--sf-bg-alt);
    padding: 1.25rem;
    border-radius: 4px;
    margin-bottom: 2rem;
    border: 1px solid var(--sf-border);
}

.logs-summary h4 {
    margin-top: 0;
    color: var(--sf-blue-dark);
    font-weight: 500;
}

.logs-summary p {
    color: var(--sf-text-secondary);
    line-height: 1.6;
}

.events-count {
    color: var(--sf-text-secondary);
    font-size: 0.875rem;
    margin-top: 1rem;
    font-style: italic;
}

/* Sentry Links */
.sentry-links {
    margin-bottom: 2rem;
}

.sentry-links h4 {
    margin-top: 0;
    color: var(--sf-blue-dark);
    font-weight: 500;
}

.sentry-links ul {
    list-style: none;
    padding: 0;
}

.sentry-links li {
    margin-bottom: 0.5rem;
}

.sentry-links a {
    color: var(--sf-blue);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--sf-bg-alt);
    border: 1px solid var(--sf-border);
    border-radius: 4px;
    transition: all 0.15s ease-in-out;
    font-weight: 500;
}

.sentry-links a:hover {
    background-color: var(--sf-bg-secondary);
    text-decoration: underline;
    box-shadow: 0 2px 4px var(--sf-shadow);
}

.sentry-links a::before {
    content: "";
    width: 20px;
    height: 20px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%230176D3'%3E%3Cpath d='M3.9 12c0-1.71 1.39-3.1 3.1-3.1h4V7H7c-2.76 0-5 2.24-5 5s2.24 5 5 5h4v-1.9H7c-1.71 0-3.1-1.39-3.1-3.1zM8 13h8v-2H8v2zm9-6h-4v1.9h4c1.71 0 3.1 1.39 3.1 3.1s-1.39 3.1-3.1 3.1h-4V17h4c2.76 0 5-2.24 5-5s-2.24-5-5-5z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--sf-success);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 4px;
    box-shadow: 0 4px 12px var(--sf-shadow);
    animation: slideIn 0.3s ease-out;
    z-index: 1000;
    font-weight: 500;
}

.toast.hidden {
    display: none;
}

@keyframes slideIn {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Error State */
.error-state {
    text-align: center;
    padding: 3rem 2rem;
    background: #FED6D7;
    border: 2px solid var(--sf-error);
    border-radius: 4px;
    margin-top: 2rem;
}

.error-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: shake 0.5s;
    color: var(--sf-error);
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.error-state h3 {
    color: var(--sf-error);
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 500;
}

.error-text {
    color: var(--sf-text-primary);
    font-size: 1.125rem;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.error-suggestion {
    color: var(--sf-text-secondary);
    background: white;
    padding: 1rem;
    border-radius: 4px;
    margin: 1.5rem auto;
    max-width: 600px;
    text-align: left;
    line-height: 1.6;
    border: 1px solid var(--sf-border);
}

.error-suggestion strong {
    color: var(--sf-text-primary);
}

.retry-btn {
    margin-top: 1.5rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 2rem;
    background: var(--sf-bg-alt);
    border: 2px dashed var(--sf-border);
    border-radius: 4px;
    margin-top: 2rem;
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
    color: var(--sf-text-secondary);
}

.empty-state h3 {
    color: var(--sf-blue-dark);
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 400;
}

.empty-text {
    color: var(--sf-text-secondary);
    font-size: 1.125rem;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.empty-suggestions {
    background: white;
    padding: 1.5rem;
    border-radius: 4px;
    margin: 1.5rem auto;
    max-width: 600px;
    text-align: left;
    border: 1px solid var(--sf-border);
}

.empty-suggestions p {
    color: var(--sf-text-primary);
    margin-bottom: 1rem;
    font-weight: 500;
}

.empty-suggestions ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.empty-suggestions li {
    color: var(--sf-text-secondary);
    padding: 0.5rem 0;
    line-height: 1.6;
}

/* Footer */
footer {
    text-align: center;
    margin-top: 2rem;
    padding: 1rem;
    color: var(--sf-text-secondary);
    font-size: 0.875rem;
    background: var(--sf-bg-alt);
    border-radius: 4px;
}

/* Responsive Design */
@media (max-width: 640px) {
    .container {
        padding: 1rem 0.5rem;
    }

    main {
        padding: 1.5rem;
    }

    header h1 {
        font-size: 2rem;
        flex-direction: column;
        gap: 0.5rem;
    }

    .auth-card {
        padding: 1.5rem;
    }

    .form-group input,
    .form-group textarea {
        font-size: 16px; /* Prevent zoom on iOS */
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .suggested-response h4 {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .copy-btn {
        width: 100%;
        justify-content: center;
    }

    .cause-item {
        padding: 1rem;
    }

    .toast {
        bottom: 1rem;
        right: 1rem;
        left: 1rem;
        width: auto;
    }

    .results h3 {
        font-size: 1.25rem;
    }

    .error-state,
    .empty-state {
        padding: 2rem 1rem;
    }
}

/* Tablet optimization */
@media (min-width: 641px) and (max-width: 1024px) {
    .container {
        max-width: 90%;
    }

    header h1 {
        font-size: 2.25rem;
    }
}