/*
 * EWAAST Premium Stylesheet
 * Based on Google MedGemma Visual Language
 * 
 * Design Tokens:
 * - Primary: #4285F4 (Google Blue)
 * - Secondary: #34A853 (Green), #EA4335 (Red), #FBBC04 (Yellow)
 * - Background: #F8F9FA (Light Gray)
 * - Card: #FFFFFF
 * - Text: #202124 (Primary), #5F6368 (Secondary)
 * - Rounding: 16px (Primary Cards), 8px (Buttons)
 */

:root {
    --color-primary: #4285F4;
    --color-secondary-green: #34A853;
    --color-secondary-red: #EA4335;
    --color-secondary-yellow: #FBBC04;
    --color-bg: #F8F9FA;
    --color-card: #FFFFFF;
    --color-text-primary: #202124;
    --color-text-secondary: #5F6368;
    --color-border: #DADCE0;

    --radius-card: 16px;
    --radius-button: 8px;
    --radius-pill: 24px;

    --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.1), 0 2px 6px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.15);

    --font-display: 'Google Sans', 'Roboto', sans-serif;
    --font-body: 'Roboto', sans-serif;
}

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

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* ===== APP CONTAINER ===== */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ===== HEADER ===== */
.app-header {
    background: var(--color-card);
    border-bottom: 1px solid var(--color-border);
    padding: 12px 24px;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
}

.logo-group {
    display: flex;
    align-items: baseline;
    gap: 12px;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
}

.powered-by {
    font-size: 13px;
    color: var(--color-text-secondary);
}

.medgemma-badge {
    background: linear-gradient(135deg, #EA4335, #FBBC04, #34A853, #4285F4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 500;
}

.back-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.back-link:hover {
    color: var(--color-primary);
}

.details-btn {
    background: var(--color-primary);
    color: white;
    padding: 8px 16px;
    border-radius: var(--radius-pill);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: box-shadow 0.2s;
}

.details-btn:hover {
    box-shadow: var(--shadow-hover);
}

/* ===== HERO SECTION ===== */
.hero-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
}

.hero-card {
    background: var(--color-card);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: 48px;
    max-width: 680px;
    text-align: center;
}

.hero-icon {
    margin-bottom: 24px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 16px;
    line-height: 1.3;
}

.hero-description {
    font-size: 16px;
    color: var(--color-text-secondary);
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-description strong {
    color: var(--color-primary);
}

.feature-grid {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 32px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--color-bg);
    border-radius: var(--radius-button);
    font-size: 14px;
    color: var(--color-text-secondary);
}

.feature-icon {
    font-size: 18px;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--color-primary);
    color: white;
    padding: 16px 32px;
    border-radius: var(--radius-pill);
    text-decoration: none;
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 500;
    transition: all 0.2s;
}

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

.cta-button .arrow {
    transition: transform 0.2s;
}

.cta-button:hover .arrow {
    transform: translateX(4px);
}

.disclaimer {
    margin-top: 24px;
    font-size: 12px;
    color: var(--color-text-secondary);
    background: #FFF3CD;
    padding: 12px;
    border-radius: var(--radius-button);
}

/* ===== ASSESSMENT PAGE ===== */
.assess-container {
    flex: 1;
    padding: 24px;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.three-column-layout {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 24px;
    height: calc(100vh - 180px);
}

.column {
    background: var(--color-card);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: 24px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.column-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 16px;
}

.column-header h2 {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 500;
}

.avatar,
.report-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.agent-info {
    display: flex;
    flex-direction: column;
}

.agent-subtitle {
    font-size: 12px;
    color: var(--color-text-secondary);
}

/* ===== CLINICIAN COLUMN ===== */
.input-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.input-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-primary);
}

.upload-area {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-button);
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    min-height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.upload-area:hover {
    border-color: var(--color-primary);
    background: rgba(66, 133, 244, 0.05);
}

.upload-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--color-text-secondary);
}

.upload-icon {
    font-size: 32px;
}

.preview-image {
    max-width: 100%;
    max-height: 200px;
    border-radius: 8px;
    display: none;
}

.context-input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-button);
    font-family: var(--font-body);
    font-size: 14px;
    resize: vertical;
    min-height: 80px;
}

.context-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(66, 133, 244, 0.2);
}

.assess-button {
    background: var(--color-primary);
    color: white;
    border: none;
    padding: 14px 24px;
    border-radius: var(--radius-button);
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: auto;
}

.assess-button:disabled {
    background: var(--color-border);
    cursor: not-allowed;
}

.assess-button:not(:disabled):hover {
    box-shadow: var(--shadow-hover);
}

/* ===== AGENT COLUMN ===== */
.thinking-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 16px 0;
}

.thinking-step {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-button);
    background: var(--color-bg);
    font-size: 14px;
    transition: all 0.3s;
}

.step-status {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 12px;
}

.step-status.pending {
    color: var(--color-text-secondary);
}

.step-status.active {
    color: var(--color-primary);
    animation: pulse 1.5s infinite;
}

.step-status.done {
    background: var(--color-secondary-green);
    color: white;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.7;
    }
}

/* ===== REPORT COLUMN ===== */
.report-content {
    flex: 1;
    overflow-y: auto;
}

.report-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    gap: 8px;
    color: var(--color-text-secondary);
}

.placeholder-icon {
    font-size: 48px;
    opacity: 0.5;
}

/* ===== REPORT CARDS ===== */
.report-card {
    background: var(--color-bg);
    border-radius: var(--radius-button);
    padding: 16px;
    margin-bottom: 12px;
}

.report-card-header {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.report-card-value {
    font-size: 18px;
    font-weight: 500;
    color: var(--color-text-primary);
}

.report-card.urgent {
    border-left: 4px solid var(--color-secondary-red);
}

.report-card.mst {
    border-left: 4px solid var(--color-primary);
}

.report-card.stage {
    border-left: 4px solid var(--color-secondary-yellow);
}

.report-card.care {
    border-left: 4px solid var(--color-secondary-green);
}

/* ===== FOOTER ===== */
.app-footer {
    background: var(--color-card);
    border-top: 1px solid var(--color-border);
    padding: 16px 24px;
    text-align: center;
    font-size: 13px;
    color: var(--color-text-secondary);
}

.app-footer a {
    color: var(--color-primary);
    text-decoration: none;
}

.app-footer a:hover {
    text-decoration: underline;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .three-column-layout {
        grid-template-columns: 1fr;
        height: auto;
    }

    .column {
        min-height: 400px;
    }

    .feature-grid {
        flex-wrap: wrap;
    }
}