/* Base styles - Reset, Typography, Core Layout */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: white;
    min-height: 100vh;
    padding: 20px;
    margin: 0;
}

html {
    margin: 0;
    padding: 0;
}

/* .container {
    max-width: 100%;
    margin: 0 auto;
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    overflow: hidden;
}

 Make container full screen when welcome screen is active 
.container:has(.welcome-screen.active) {
    max-width: 100%;
    margin: 0;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
} */



/* Also remove body padding when welcome screen is active */
body:has(.welcome-screen.active) {
    padding: 0;
    background: white;
}

/* Remove body padding and background when assessment info screen is active */
body:has(.assessment-info-screen.active) {
    padding: 0;
    background: white;
}

/* Remove body padding and background when stage1 briefing screen is active */
body:has(.stage1-briefing-screen.active) {
    padding: 0;
    background: white;
}

.header {
    background: linear-gradient(135deg, #0056D6 0%, #003D99 100%);
    color: white;
    padding: 30px;
    text-align: center;
    position: relative;
}

/* Hide header when welcome screen is active */
.container:has(.welcome-screen.active) .header {
    display: none;
}

/* Hide header when assessment info screen is active */
.container:has(.assessment-info-screen.active) .header {
    display: none;
}

/* Hide header when stage1 briefing screen is active */
.container:has(.stage1-briefing-screen.active) .header {
    display: none;
}

.header-logo {
    position: absolute;
    left: 30px;
    top: 50%;
    transform: translateY(-50%);
    height: 60px;
}

.header-content {
    padding-left: 200px;
}

.header h1 {
    font-size: 28px;
    margin-bottom: 10px;
}

.header p {
    opacity: 0.9;
    font-size: 16px;
}

.content {
    padding: 40px;
}

/* Remove content padding when welcome screen is active */
.container:has(.welcome-screen.active) .content {
    padding: 0;
}

/* Remove content padding when assessment info screen is active */
.container:has(.assessment-info-screen.active) .content {
    padding: 0;
}

/* Remove content padding when stage1 briefing screen is active */
.container:has(.stage1-briefing-screen.active) .content {
    padding: 0;
}

/* Screen visibility management */
.welcome-screen, .assessment-info-screen, .stage1-briefing-screen, .stage1-screen, .stage2-briefing-screen, .stage2-screen, .stage3-briefing-screen, .stage3-screen, .results-screen, .admin-screen {
    display: none;
}

.welcome-screen.active, .assessment-info-screen.active, .stage1-briefing-screen.active, .stage1-screen.active, .stage2-briefing-screen.active, .stage2-screen.active, .stage3-briefing-screen.active, .stage3-screen.active, .results-screen.active, .admin-screen.active {
    display: block;
}

/* Welcome Screen - Two Column Layout */
.welcome-content {
    display: flex;
    min-height: 100vh;
    background: white;
    width: 100%;
}

.welcome-left {
    flex: 0 0 50%;
    width: 50%;
    background: white;
    padding: 15vh 42px 0 42px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    box-sizing: border-box;
    min-height: 100vh;
}

.welcome-hero {
    display: flex;
    flex-direction: column;
    gap: 0;
    width: 100%;
    flex-shrink: 0;
}

.welcome-title {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: clamp(32px, 3.5vw, 56px);
    font-weight: 700;
    line-height: 1.2;
    color: #1e54e7;
    text-align: center;
    margin: 0;
    width: 100%;
    position: relative;
}

.welcome-title p {
    margin: 0;
    white-space: nowrap;
}

.welcome-title p:first-child {
    margin-bottom: 4px;
}

.welcome-title p:last-child {
    margin-top: 0;
}

.welcome-subtitle-wrapper {
    width: 100%;
    margin-top: 16px;
}

.welcome-subtitle {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: clamp(16px, 1.5vw, 22px);
    font-style: italic;
    font-weight: 400;
    line-height: 1.5;
    color: rgba(106, 106, 108, 0.5);
    text-align: center;
    margin: 0;
    white-space: nowrap;
}

.welcome-logo {
    margin-top: clamp(32px, 4vh, 64px);
    text-align: center;
    width: 100%;
    max-width: clamp(350px, 35vw, 600px);
    margin-left: auto;
    margin-right: auto;
}

.welcome-logo img {
    width: 100%;
    height: auto;
}

.welcome-right {
    flex: 0 0 50%;
    width: 50%;
    background: #f3f5f6;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    box-sizing: border-box;
    padding: 40px;
}

.registration-card {
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    padding: 48px 40px;
    width: 100%;
    max-width: 480px;
    min-height: 520px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    gap: 32px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
}

.card-header {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.card-header h2 {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 36px;
    font-weight: 700;
    line-height: 1.2;
    color: #111827;
    margin: 0;
}

.card-subtitle {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 14px;
    font-weight: 400;
    line-height: 1.5;
    color: #9ca3af;
    margin: 0;
}

/* ============================================
   RESPONSIVE DESIGN - WELCOME SCREEN
   ============================================ */

/* Large tablets and small desktops (< 1200px) */
@media (max-width: 1200px) {
    .welcome-left {
        padding: 10vh 32px 0 32px;
    }

    .registration-card {
        max-width: 420px;
        padding: 40px 32px;
    }

    .card-header h2 {
        font-size: 32px;
    }
}

/* Tablets (< 1024px) */
@media (max-width: 1024px) {
    .welcome-left {
        padding: 8vh 24px 0 24px;
    }

    .welcome-title {
        font-size: clamp(28px, 4vw, 42px);
    }

    .welcome-subtitle {
        font-size: clamp(15px, 2vw, 20px);
    }

    .welcome-logo {
        max-width: clamp(300px, 40vw, 500px);
    }

    .welcome-right {
        padding: 30px 24px;
    }

    .registration-card {
        max-width: 400px;
        padding: 36px 32px;
    }

    .card-header h2 {
        font-size: 30px;
    }
}

/* Mobile and small tablets (< 768px) - Stacked layout */
@media (max-width: 768px) {
    .welcome-content {
        flex-direction: column;
        min-height: auto;
    }

    .welcome-left {
        flex: none;
        width: 100%;
        padding: 60px 24px 50px;
        min-height: auto;
    }

    .welcome-title {
        font-size: clamp(28px, 6vw, 40px);
    }

    .welcome-title p {
        white-space: normal;
    }

    .welcome-subtitle {
        font-size: clamp(16px, 3vw, 20px);
    }

    .welcome-subtitle-wrapper {
        margin-top: 12px;
    }

    .welcome-logo {
        margin-top: clamp(32px, 5vh, 48px);
        max-width: clamp(280px, 50vw, 400px);
    }

    .welcome-right {
        width: 100%;
        flex: none;
        padding: 40px 24px;
        min-height: auto;
    }

    .registration-card {
        width: 100%;
        max-width: 100%;
        padding: 36px 28px;
    }

    .card-header h2 {
        font-size: 28px;
    }

    .card-subtitle {
        font-size: 13px;
    }
}

/* Small mobile devices (< 480px) */
@media (max-width: 480px) {
    .welcome-left {
        padding: 50px 20px 40px;
    }

    .welcome-title {
        font-size: clamp(24px, 7vw, 32px);
    }

    .welcome-subtitle {
        font-size: clamp(15px, 4vw, 18px);
    }

    .welcome-logo {
        max-width: clamp(240px, 60vw, 320px);
        margin-top: clamp(28px, 5vh, 40px);
    }

    .welcome-right {
        padding: 32px 20px;
    }

    .registration-card {
        padding: 28px 24px;
        border-radius: 12px;
        gap: 24px;
    }

    .card-header h2 {
        font-size: 24px;
    }

    .card-subtitle {
        font-size: 13px;
    }

    .form-group label {
        font-size: 13px;
    }

    .form-group input,
    .form-group select {
        padding: 10px 12px;
        font-size: 14px;
    }

    .btn {
        padding: 12px 20px;
        font-size: 15px;
    }
}

/* ============================================
   RESPONSIVE DESIGN - GENERAL LAYOUT
   ============================================ */

/* Tablet and smaller (< 1024px) */
@media (max-width: 1024px) {
    body {
        padding: 15px;
    }

    .container {
        border-radius: 12px;
    }

    .content {
        padding: 30px;
    }

    .header {
        padding: 25px;
    }

    .header h1 {
        font-size: 24px;
    }

    .header p {
        font-size: 14px;
    }
}

/* Mobile and small tablets (< 768px) */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    .container {
        border-radius: 8px;
    }

    .content {
        padding: 20px;
    }

    .header {
        padding: 20px;
    }

    .header-logo {
        height: 50px;
        left: 20px;
    }

    .header-content {
        padding-left: 80px;
    }

    .header h1 {
        font-size: 20px;
        margin-bottom: 5px;
    }

    .header p {
        font-size: 13px;
    }
}

/* Small mobile devices (< 480px) */
@media (max-width: 480px) {
    body {
        padding: 0;
    }

    .container {
        border-radius: 0;
    }

    .content {
        padding: 16px;
    }

    .header {
        padding: 16px;
    }

    .header-logo {
        height: 40px;
        left: 16px;
    }

    .header-content {
        padding-left: 60px;
    }

    .header h1 {
        font-size: 18px;
    }

    .header p {
        font-size: 12px;
    }
}

/* ============================================
   ASSESSMENT INFO SCREEN
   ============================================ */

.assessment-info-screen {
    display: none;
    width: 100%;
    min-height: 100vh;
    padding: 28px 111.5px;
    box-sizing: border-box;
}

.assessment-info-screen.active {
    display: block;
}

.assessment-info-container {
    max-width: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

/* Header */
.assessment-info-header {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: center;
    text-align: center;
}

.assessment-info-title {
    font-size: 32px;
    font-weight: 600;
    color: #1e54e7;
    line-height: 48px;
    margin: 0;
}

.assessment-info-subtitle {
    font-size: 14px;
    color: rgba(106, 106, 108, 0.5);
    line-height: 21px;
    margin: 0;
}

/* Main Content Card */
.assessment-info-card {
    background: white;
    border: 1px solid #d0d6dc;
    border-radius: 8px;
    padding: 29px;
    display: flex;
    flex-direction: column;
    gap: 49px;
}

/* Info Sections */
.info-section {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.info-intro {
    font-size: 14px;
    line-height: 22.4px;
    color: rgba(0, 0, 0, 0.87);
    margin: 0;
}

.section-heading {
    font-size: 24px;
    font-weight: 600;
    color: #1e54e7;
    line-height: 36px;
    margin: 0;
}

/* Info Grid - 2 columns */
.info-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

/* Info Cards (for Internship Experience section) */
.info-card {
    background: #f3f5f6;
    border: 1px solid #d0d6dc;
    border-radius: 4px;
    padding: 15px;
    display: flex;
    align-items: flex-start;
    gap: 10.5px;
    min-height: 100px;
}

.info-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    margin-top: 3.5px;
}

.info-card-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.info-card-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: rgba(0, 0, 0, 0.87);
    line-height: 24px;
    margin: 0;
}

.info-card-content p {
    font-size: 14px;
    color: rgba(106, 106, 108, 0.5);
    line-height: 21px;
    margin: 0;
}

/* Info List Items (for Ideal Intern section) */
.info-list-item {
    display: flex;
    align-items: flex-start;
    gap: 7px;
}

.info-check-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    margin-top: 3.5px;
}

.info-list-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.info-list-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: rgba(0, 0, 0, 0.87);
    line-height: 24px;
    margin: 0;
}

.info-list-content p {
    font-size: 14px;
    color: rgba(106, 106, 108, 0.5);
    line-height: 21px;
    margin: 0;
}

/* Assessment Stages */
.assessment-stages {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

.stage-item {
    background: #f3f5f6;
    border: 1px solid #d0d6dc;
    border-radius: 4px;
    padding: 15px;
    display: flex;
    align-items: flex-start;
    gap: 10.5px;
    min-height: 100px;
    box-sizing: border-box;
}

.stage-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    margin-top: 3.5px;
}

.stage-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stage-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: #1e54e7;
    line-height: 24px;
    margin: 0;
}

.stage-content p {
    font-size: 14px;
    color: #1e54e7;
    line-height: 21px;
    margin: 0;
}

/* Info Note */
.info-note {
    background: #f3f5f6;
    border-left: 3px solid #1e54e7;
    border-radius: 4px;
    padding: 10.5px 13.5px;
}

.info-note p {
    font-size: 14px;
    color: rgba(106, 106, 108, 0.5);
    line-height: 21px;
    margin: 0;
    font-style: italic;
}

/* Before You Begin Section */
.before-you-begin {
    background: white;
    border: 1px solid #d0d6dc;
    border-radius: 4px;
    padding: 15px;
}

.before-you-begin h3 {
    font-size: 20px;
    font-weight: 600;
    color: #1e54e7;
    line-height: 30px;
    margin: 0 0 10.5px 0;
}

.checklist {
    list-style: none;
    padding: 0;
    margin: 0 0 10.5px 0;
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.checklist li {
    font-size: 14px;
    color: #1e54e7;
    line-height: 21px;
    padding-left: 15px;
    position: relative;
}

.checklist li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: #1e54e7;
}

.questions-text {
    font-size: 14px;
    color: #1e54e7;
    line-height: 21px;
    margin: 0;
}

/* Acknowledgment Card */
.acknowledgment-card {
    background: white;
    border: 1px solid #d0d6dc;
    border-radius: 8px;
    padding: 22px;
    display: flex;
    flex-direction: column;
    gap: 35px;
}

.checkbox-container {
    display: flex;
    align-items: flex-start;
    gap: 10.5px;
}

.assessment-checkbox {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    margin-top: 2px;
    cursor: pointer;
}

.checkbox-container label {
    font-size: 12px;
    color: rgba(0, 0, 0, 0.87);
    line-height: 18px;
    cursor: pointer;
    flex: 1;
}

/* Accessibility Accommodation Section */
.accommodation-checkbox-container {
    margin-top: 0;
}

.accommodation-helper-text {
    font-size: 11px;
    color: rgba(106, 106, 108, 0.7);
    line-height: 16px;
    margin-top: 8px;
    padding: 12px;
    background: #f8f9fa;
    border-left: 3px solid #818cf8;
    border-radius: 4px;
}

#proceed-to-stage1-btn {
    width: 100%;
    padding: 7px 14px;
    border-radius: 4px;
    font-size: 14px;
    min-height: 31.5px;
}

#proceed-to-stage1-btn:disabled {
    background: #f3f5f6;
    color: rgba(106, 106, 108, 0.5);
    opacity: 0.5;
    cursor: not-allowed;
}

/* Responsive Design for Assessment Info Screen */

/* Tablet and smaller (< 1024px) */
@media (max-width: 1024px) {
    .assessment-info-screen {
        padding: 28px 60px;
    }

    .info-grid-2 {
        gap: 12px;
    }
}

/* Mobile landscape and smaller (< 768px) */
@media (max-width: 768px) {
    .assessment-info-screen {
        padding: 20px 30px;
    }

    .assessment-info-title {
        font-size: 28px;
        line-height: 42px;
    }

    .assessment-info-subtitle {
        font-size: 13px;
    }

    .section-heading {
        font-size: 22px;
        line-height: 32px;
    }

    .info-grid-2 {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .assessment-stages {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .assessment-info-card {
        padding: 20px;
        gap: 35px;
    }

    .acknowledgment-card {
        padding: 18px;
        gap: 25px;
    }
}

/* Mobile portrait (< 480px) */
@media (max-width: 480px) {
    .assessment-info-screen {
        padding: 15px 20px;
    }

    .assessment-info-title {
        font-size: 24px;
        line-height: 36px;
    }

    .assessment-info-subtitle {
        font-size: 12px;
    }

    .section-heading {
        font-size: 20px;
        line-height: 28px;
    }

    .assessment-info-card {
        padding: 15px;
        gap: 30px;
    }

    .info-section {
        gap: 12px;
    }

    .before-you-begin h3 {
        font-size: 18px;
    }

    .acknowledgment-card {
        padding: 15px;
        gap: 20px;
    }

    .checkbox-container label {
        font-size: 11px;
        line-height: 16px;
    }
}

/* ============================================
   STAGE 1 BRIEFING SCREEN
   ============================================ */

.stage1-briefing-screen {
    display: none;
    background: white;
    width: 100%;
    min-height: 100vh;
    box-sizing: border-box;
}

.stage1-briefing-screen.active {
    display: block;
}

.briefing-container {
    max-width: 100%;
    width: 100%;
    margin: 0 auto;
    padding: 40px 20px;
    display: flex;
    flex-direction: column;
    gap: 32px;
    box-sizing: border-box;
}

/* Horizontal Progress Bar */
.horizontal-stage-progress {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
    margin-bottom: 24px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
}

.stage-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    width: 180px;
}

.stage-item-last {
    width: 120px;
}

.stage-circle-container {
    width: 56px;
    height: 56px;
    border-radius: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
}

.stage-circle-container.stage-active {
    background: #1e54e7;
    border: 3px solid #1e54e7;
    padding: 3px;
}

.stage-circle-container.stage-inactive {
    background: #e8eaee;
}

.stage-circle {
    width: 21px;
    height: 21px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stage-circle img {
    width: 100%;
    height: 100%;
    display: block;
}

.stage-labels {
    text-align: center;
}

.stage-number {
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 600;
    line-height: 21px;
    margin: 0 0 -0.5px 0;
}

.stage-active + .stage-labels .stage-number {
    color: #1e54e7;
}

.stage-inactive + .stage-labels .stage-number {
    color: rgba(106, 106, 108, 0.5);
    font-weight: 500;
}

.stage-name {
    font-family: 'Inter', sans-serif;
    font-size: 11px;
    font-weight: 400;
    line-height: 16.5px;
    color: rgba(106, 106, 108, 0.5);
    margin: 0;
    white-space: nowrap;
}

.stage-connector {
    position: absolute;
    top: 23.75px;
    left: 120px;
    width: 60px;
    height: 3px;
    background: #d0d6dc;
    border-radius: 2px;
}

.stage-item-last .stage-connector {
    display: none;
}

/* Main Card */
.briefing-card {
    background: white;
    border: 1px solid #d0d6dc;
    border-radius: 8px;
    padding: 1px;
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    box-sizing: border-box;
}

/* Card Header */
.briefing-card-header {
    text-align: center;
    padding: 40px 24px 24px 24px;
}

.briefing-card-title {
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    font-weight: 600;
    line-height: 24px;
    color: rgba(0, 0, 0, 0.87);
    margin: 0 0 14px 0;
}

.briefing-card-subtitle {
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 400;
    line-height: 21px;
    color: rgba(106, 106, 108, 0.5);
    margin: 0;
}

/* Card Content */
.briefing-card-content {
    padding: 0 24px 16px 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* Section */
.briefing-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.briefing-section-header {
    display: flex;
    align-items: center;
    gap: 8px;
    height: 24px;
}

.briefing-icon {
    width: 18px;
    height: 18px;
}

.briefing-section-header h3 {
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    font-weight: 600;
    line-height: 24px;
    color: rgba(0, 0, 0, 0.87);
    margin: 0;
}

.briefing-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.briefing-list li {
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 400;
    line-height: 21px;
    color: rgba(0, 0, 0, 0.87);
    padding-left: 16px;
    position: relative;
}

.briefing-list li::before {
    content: '•';
    color: #1e54e7;
    position: absolute;
    left: 0;
    font-size: 14px;
}

/* Bordered Boxes */
.briefing-box {
    border: 2px solid #1e54e7;
    border-radius: 8px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: #f8f9ff;
}

.briefing-box h3 {
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    font-weight: 600;
    line-height: 24px;
    color: #1e54e7;
    margin: 0;
}

.briefing-list-blue li {
    color: #1e54e7;
}

/* Alerts */
.briefing-alerts {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.briefing-alert {
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 8px;
    padding: 12px 16px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    min-height: 44px;
}

.briefing-alert .alert-icon {
    width: 14px;
    height: 14px;
    margin-top: 3px;
    flex-shrink: 0;
}

.briefing-alert span {
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 400;
    line-height: 20px;
    color: rgba(0, 0, 0, 0.87);
}

/* Actions */
.briefing-actions {
    padding-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.briefing-btn-primary {
    background: #1e54e7;
    color: white;
    border: none;
    border-radius: 8px;
    height: 44px;
    width: 100%;
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: 'Inter', sans-serif;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.5;
    cursor: pointer;
    transition: all 0.2s ease;
    box-sizing: border-box;
}

.briefing-btn-primary:hover {
    background: #1645c7;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(30, 84, 231, 0.3);
}

.briefing-btn-primary .arrow-icon {
    width: 16px;
    height: 16px;
}

.briefing-btn-secondary {
    background: white;
    color: rgba(0, 0, 0, 0.87);
    border: 1px solid #d0d6dc;
    border-radius: 8px;
    height: 44px;
    width: 100%;
    padding: 12px 24px;
    font-family: 'Inter', sans-serif;
    font-size: 15px;
    font-weight: 500;
    line-height: 1.5;
    cursor: pointer;
    transition: all 0.2s ease;
    box-sizing: border-box;
}

.briefing-btn-secondary:hover {
    background: #f5f5f5;
    border-color: #b0b6be;
}

.briefing-helper-text {
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 400;
    line-height: 21px;
    color: rgba(106, 106, 108, 0.5);
    text-align: center;
    margin: 0;
}

/* Responsive Design */
@media (min-width: 1400px) {
    .briefing-container {
        padding: 64px 80px;
    }
}

@media (max-width: 1200px) {
    .briefing-container {
        padding: 40px;
    }
}

@media (max-width: 1024px) {
    .briefing-container {
        padding: 32px;
    }

    .horizontal-stage-progress {
        gap: 0;
    }

    .stage-item {
        width: 160px;
    }

    .stage-item-last {
        width: 100px;
    }
}

@media (max-width: 768px) {
    .briefing-container {
        padding: 24px;
        gap: 24px;
    }

    .horizontal-stage-progress {
        flex-wrap: wrap;
        justify-content: center;
        gap: 20px 12px;
        margin-bottom: 16px;
    }

    .stage-item {
        width: 140px;
    }

    .stage-item-last {
        width: 140px;
    }

    .stage-connector {
        display: none;
    }

    .briefing-card {
        max-width: 100%;
    }

    .briefing-card-header {
        padding: 24px 16px;
    }

    .briefing-card-content {
        padding: 0 16px 16px 16px;
        gap: 20px;
    }

    .briefing-section {
        gap: 8px;
    }

    .briefing-btn-primary,
    .briefing-btn-secondary {
        height: 48px;
        font-size: 15px;
        padding: 14px 24px;
    }
}

@media (max-width: 480px) {
    .briefing-container {
        padding: 20px 16px;
        gap: 20px;
    }

    .briefing-card {
        max-width: 100%;
    }

    .briefing-card-title {
        font-size: 15px;
    }

    .briefing-card-subtitle {
        font-size: 13px;
    }

    .briefing-section-header h3 {
        font-size: 15px;
    }

    .briefing-box h3 {
        font-size: 15px;
    }

    .briefing-list li {
        font-size: 13px;
        line-height: 1.6;
    }

    .briefing-card-content {
        gap: 16px;
    }

    .briefing-section {
        gap: 8px;
    }

    .briefing-alert {
        padding: 12px;
        height: auto;
        min-height: 44px;
    }

    .briefing-alert span {
        font-size: 13px;
        line-height: 1.5;
    }

    .briefing-box {
        padding: 16px 16px 0 16px;
    }

    .briefing-card-header {
        padding: 24px 16px;
    }

    .briefing-card-content {
        padding: 0 16px 16px 16px;
        gap: 16px;
    }

    .briefing-btn-primary,
    .briefing-btn-secondary {
        height: 48px;
        font-size: 14px;
        padding: 14px 20px;
    }

    .horizontal-stage-progress {
        gap: 16px;
    }

    .stage-item {
        width: 120px;
    }

    .stage-item-last {
        width: 120px;
    }

    .stage-circle-container {
        width: 48px;
        height: 48px;
    }

    .stage-circle {
        width: 18px;
        height: 18px;
    }

    .stage-number {
        font-size: 13px;
    }

    .stage-name {
        font-size: 10px;
    }
}