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

:root {
    /* Traditional Chinese Medicine Color Palette */
    --tcm-red: #C8102E;
    --tcm-gold: #D4AF37;
    --tcm-jade: #00A86B;
    --tcm-ink: #1a1a1a;
    --tcm-paper: #F5F1E8;
    --tcm-bamboo: #4A7C59;

    /* Modern Accents */
    --primary: #8B4513;
    --primary-dark: #654321;
    --secondary: #D4AF37;
    --accent: #C8102E;
    --text-dark: #2c2c2c;
    --text-light: #666;
    --bg-light: #fafafa;
    --white: #ffffff;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-chinese: 'Noto Serif SC', serif;
}

body {
    font-family: var(--font-primary);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo img {
    height: 40px;
    width: auto;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    font-family: var(--font-chinese);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--primary);
}

.language-switch {
    padding: 0.5rem 1rem;
    background: rgba(212, 175, 55, 0.1);
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.language-switch:hover {
    background: rgba(212, 175, 55, 0.2);
    color: var(--secondary) !important;
}

/* Sign In button in navigation */
.nav-links .btn-primary {
    padding: 0.625rem 1.5rem;
    background: var(--primary);
    color: var(--white) !important;
    font-weight: 600;
    font-size: 0.95rem;
    box-shadow: 0 2px 8px rgba(139, 69, 19, 0.25);
}

.nav-links .btn-primary:hover {
    background: var(--primary-dark);
    color: var(--white) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(139, 69, 19, 0.35);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #F5F1E8 0%, #E8DCC4 100%);
    padding-top: 80px;
    padding-bottom: 4rem;
    margin-bottom: 0;
}

/* Particle Wave Canvas Background */
.hero-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    background: linear-gradient(135deg, #F5F1E8 0%, #E8DCC4 100%);
    pointer-events: none;
}

#particleWaveCanvas {
    display: block;
    width: 100%;
    height: 100%;
    background: transparent;
}

/* Dynamic Light Effect */
.hero-light-effect {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
            transparent 0%,
            rgba(255, 255, 255, 0.1) 25%,
            rgba(255, 255, 255, 0.3) 50%,
            rgba(255, 255, 255, 0.1) 75%,
            transparent 100%);
    animation: lightSweep 8s ease-in-out infinite;
    pointer-events: none;
    z-index: 2;
}

@keyframes lightSweep {
    0% {
        left: -100%;
        opacity: 0;
    }

    10% {
        opacity: 1;
    }

    50% {
        left: 100%;
        opacity: 1;
    }

    60% {
        opacity: 0;
    }

    100% {
        left: 100%;
        opacity: 0;
    }
}

/* Water Ripple Effect */
.water-ripple {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 30%, rgba(0, 168, 107, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(212, 175, 55, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(200, 16, 46, 0.1) 0%, transparent 60%);
    background-size: 200% 200%, 200% 200%, 200% 200%;
    animation: waterWave 15s ease-in-out infinite;
    pointer-events: none;
    z-index: 1;
}



@keyframes waterWave {
    0% {
        background-position: 0% 0%, 100% 100%, 50% 50%;
    }

    25% {
        background-position: 50% 30%, 80% 70%, 30% 60%;
    }

    50% {
        background-position: 100% 50%, 50% 50%, 70% 40%;
    }

    75% {
        background-position: 50% 70%, 30% 30%, 40% 70%;
    }

    100% {
        background-position: 0% 0%, 100% 100%, 50% 50%;
    }
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 1400px;
    text-align: center;
    margin: 0 auto;
    padding: 2rem 5rem;
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 40px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary);
    line-height: 1.2;
}

.title-separator {
    margin: 0 0.5rem;
    color: var(--secondary);
    font-weight: 400;
}

.chinese-accent {
    font-family: var(--font-chinese);
    color: var(--tcm-red);
    display: inline-block;
    margin-right: 0.5rem;
    font-weight: 700;
}

.hero-subtitle {
    font-size: clamp(1.5rem, 4vw, 2.25rem);
    color: var(--primary);
    margin-bottom: 1.5rem;
    font-weight: 600;
    line-height: 1.4;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-dark);
    margin-bottom: 2.5rem;
    line-height: 1.8;
    font-weight: 500;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

/* HIPAA Badge */
.hipaa-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: rgba(0, 168, 107, 0.1);
    border: 2px solid var(--tcm-jade);
    border-radius: 50px;
    color: var(--tcm-jade);
    font-weight: 600;
    font-size: 0.95rem;
    margin-top: 1rem;
}

.hipaa-badge svg {
    width: 24px;
    height: 24px;
    stroke: var(--tcm-jade);
}

.hipaa-badge:hover {
    background: rgba(0, 168, 107, 0.15);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 168, 107, 0.2);
    transition: all 0.3s ease;
}

/* Buttons */
.btn-primary,
.btn-hero,
.btn-secondary {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary,
.btn-hero {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(139, 69, 19, 0.3);
}

.btn-primary:hover,
.btn-hero:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 69, 19, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

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

/* Section Styles */
section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Core Value Proposition Section */
.core-value-section {
    background: linear-gradient(135deg, #0f1419 0%, #1a1f2e 50%, #0f1419 100%);
    padding: 8rem 0;
    position: relative;
    overflow: hidden;
    margin-top: 0;
    scroll-margin-top: 80px;
}

.core-value-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(212, 175, 55, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(200, 16, 46, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 50% 0%, rgba(212, 175, 55, 0.05) 0%, transparent 70%);
    pointer-events: none;
    animation: gradientShift 8s ease-in-out infinite;
}

@keyframes gradientShift {

    0%,
    100% {
        opacity: 0.8;
    }

    50% {
        opacity: 1;
    }
}

.core-value-content {
    position: relative;
    z-index: 1;
}

.core-value-header {
    text-align: center;
    margin-bottom: 5rem;
}

.core-value-title {
    font-size: 3.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #D4AF37 0%, #FFE066 50%, #D4AF37 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 2rem;
    font-family: var(--font-chinese);
    line-height: 1.3;
    animation: titleGlow 3s ease-in-out infinite;
}

@keyframes titleGlow {

    0%,
    100% {
        filter: drop-shadow(0 0 10px rgba(212, 175, 55, 0.3));
    }

    50% {
        filter: drop-shadow(0 0 20px rgba(212, 175, 55, 0.6));
    }
}

.core-value-subtitle {
    font-size: 1.75rem;
    color: #B0B8C1;
    font-weight: 500;
    animation: fadeInOut 4s ease-in-out infinite;
}

@keyframes fadeInOut {

    0%,
    100% {
        opacity: 0.7;
    }

    50% {
        opacity: 1;
    }
}

.workflow-diagram {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin: 4rem 0;
    padding: 3rem 2rem;
    background: linear-gradient(135deg, rgba(30, 35, 50, 0.8) 0%, rgba(20, 25, 40, 0.9) 100%);
    border-radius: 20px;
    border: 1px solid rgba(212, 175, 55, 0.2);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(212, 175, 55, 0.1);
    backdrop-filter: blur(10px);
}

.workflow-step {
    flex: 1;
    min-width: 180px;
    max-width: 220px;
    text-align: center;
    padding: 2rem 1.5rem;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.05) 0%, rgba(200, 16, 46, 0.05) 100%);
    border-radius: 15px;
    border: 2px solid rgba(212, 175, 55, 0.3);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    overflow: hidden;
}

.workflow-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.2), transparent);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% {
        left: -100%;
    }

    100% {
        left: 100%;
    }
}

.workflow-step:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 20px 40px rgba(212, 175, 55, 0.3), inset 0 0 20px rgba(212, 175, 55, 0.1);
    border-color: rgba(212, 175, 55, 0.6);
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.15) 0%, rgba(200, 16, 46, 0.1) 100%);
}

.step-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    filter: drop-shadow(0 0 10px rgba(212, 175, 55, 0.4));
    animation: iconPulse 2s ease-in-out infinite;
}

@keyframes iconPulse {

    0%,
    100% {
        transform: scale(1);
        filter: drop-shadow(0 0 10px rgba(212, 175, 55, 0.4));
    }

    50% {
        transform: scale(1.1);
        filter: drop-shadow(0 0 20px rgba(212, 175, 55, 0.8));
    }
}

.workflow-step h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #FFE066;
    margin-bottom: 1rem;
    font-family: var(--font-chinese);
}

.workflow-step p {
    font-size: 1.1rem;
    color: #B0B8C1;
    line-height: 1.7;
}

.workflow-arrow {
    font-size: 2.5rem;
    color: #D4AF37;
    font-weight: bold;
    flex-shrink: 0;
    animation: arrowFlow 2s ease-in-out infinite;
}

@keyframes arrowFlow {

    0%,
    100% {
        transform: translateX(0);
        opacity: 0.6;
    }

    50% {
        transform: translateX(8px);
        opacity: 1;
    }
}

.core-value-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-top: 4rem;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2.5rem;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.08) 0%, rgba(200, 16, 46, 0.05) 100%);
    border-radius: 15px;
    border: 1px solid rgba(212, 175, 55, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(212, 175, 55, 0.1);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    overflow: hidden;
}

.highlight-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 0% 0%, rgba(212, 175, 55, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.highlight-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 50px rgba(212, 175, 55, 0.2), inset 0 1px 0 rgba(212, 175, 55, 0.2);
    border-color: rgba(212, 175, 55, 0.5);
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.15) 0%, rgba(200, 16, 46, 0.1) 100%);
}

.highlight-item:hover::before {
    opacity: 1;
}

.highlight-icon {
    font-size: 3rem;
    flex-shrink: 0;
    filter: drop-shadow(0 0 15px rgba(212, 175, 55, 0.5));
    animation: iconFloat 3s ease-in-out infinite;
}

@keyframes iconFloat {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.highlight-text strong {
    display: block;
    font-size: 1.65rem;
    color: #FFE066;
    margin-bottom: 1rem;
    font-family: var(--font-chinese);
    font-weight: 700;
}

.highlight-text p {
    font-size: 1.15rem;
    color: #B0B8C1;
    line-height: 1.8;
    margin: 0;
}

/* Responsive Design for Core Value Section */
@media (max-width: 1024px) {
    .core-value-section {
        padding: 6rem 0;
    }

    .workflow-diagram {
        flex-direction: column;
        align-items: center;
    }

    .workflow-arrow {
        transform: rotate(90deg);
    }

    .workflow-step {
        max-width: 100%;
        width: 100%;
    }

    .core-value-title {
        font-size: 2.8rem;
    }

    .core-value-subtitle {
        font-size: 1.5rem;
    }

    .workflow-step h3 {
        font-size: 1.4rem;
    }

    .workflow-step p {
        font-size: 1.05rem;
    }
}

@media (max-width: 768px) {
    .core-value-section {
        padding: 5rem 0;
    }

    .core-value-title {
        font-size: 2.2rem;
    }

    .core-value-subtitle {
        font-size: 1.2rem;
    }

    .workflow-diagram {
        padding: 2rem 1rem;
    }

    .workflow-step {
        padding: 1.5rem 1rem;
    }

    .workflow-step h3 {
        font-size: 1.3rem;
    }

    .workflow-step p {
        font-size: 1rem;
    }

    .core-value-highlights {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .highlight-item {
        padding: 2rem;
    }

    .highlight-text strong {
        font-size: 1.4rem;
    }

    .highlight-text p {
        font-size: 1.05rem;
    }
}

/* Features Section */
.features {
    background: linear-gradient(180deg, #f0f8f5 0%, #e0f2ed 50%, #f0f8f5 100%);
    position: relative;
    overflow: hidden;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 30% 30%, rgba(0, 168, 107, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(0, 212, 132, 0.06) 0%, transparent 50%);
    pointer-events: none;
    animation: gradientShift 10s ease-in-out infinite;
}

.features .section-header {
    position: relative;
    z-index: 1;
}

.features .section-title {
    background: linear-gradient(90deg, #00A86B 0%, #00D084 50%, #00A86B 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: titleGlowGreen 3s ease-in-out infinite;
}

@keyframes titleGlowGreen {

    0%,
    100% {
        filter: drop-shadow(0 0 10px rgba(0, 168, 107, 0.3));
    }

    50% {
        filter: drop-shadow(0 0 20px rgba(0, 168, 107, 0.6));
    }
}

.features .section-subtitle {
    color: #666;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.feature-card {
    padding: 2rem;
    background: linear-gradient(135deg, rgba(0, 168, 107, 0.08) 0%, rgba(0, 212, 132, 0.05) 100%);
    border-radius: 15px;
    border: 1px solid rgba(0, 168, 107, 0.3);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 168, 107, 0.15), transparent);
    animation: shimmerGreen 3s infinite;
}

@keyframes shimmerGreen {
    0% {
        left: -100%;
    }

    100% {
        left: 100%;
    }
}

.feature-card:hover {
    transform: translateY(-8px) scale(1.03);
    box-shadow: 0 20px 40px rgba(0, 168, 107, 0.25), inset 0 0 20px rgba(0, 168, 107, 0.08);
    border-color: rgba(0, 168, 107, 0.6);
    background: linear-gradient(135deg, rgba(0, 168, 107, 0.15) 0%, rgba(0, 212, 132, 0.1) 100%);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(0, 168, 107, 0.15), rgba(0, 212, 132, 0.1));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    padding: 15px;
    transition: all 0.4s ease;
    border: 1px solid rgba(0, 168, 107, 0.3);
    filter: drop-shadow(0 0 10px rgba(0, 168, 107, 0.3));
}

.feature-card:hover .feature-icon {
    transform: scale(1.12) rotate(-5deg);
    background: linear-gradient(135deg, rgba(0, 168, 107, 0.25), rgba(0, 212, 132, 0.15));
    filter: drop-shadow(0 0 20px rgba(0, 168, 107, 0.5));
    border-color: rgba(0, 168, 107, 0.6);
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: brightness(1.15) drop-shadow(0 0 5px rgba(0, 168, 107, 0.3));
}

.feature-icon svg {
    width: 32px;
    height: 32px;
    color: var(--white);
}

.feature-card h3 {
    font-size: 1.5rem;
    color: #00A86B;
    margin-bottom: 1rem;
}

.feature-card p {
    color: #555;
    line-height: 1.7;
}

/* Use Cases Section */
.use-cases {
    background: linear-gradient(180deg, #faf6f1 0%, #f3ede5 50%, #faf6f1 100%);
    position: relative;
    overflow: hidden;
}

.use-cases::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 10% 30%, rgba(234, 88, 12, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 90% 70%, rgba(251, 146, 60, 0.06) 0%, transparent 50%);
    pointer-events: none;
    animation: gradientShift 12s ease-in-out infinite;
}

.use-cases .section-header {
    position: relative;
    z-index: 1;
}

.use-cases .section-title {
    background: linear-gradient(90deg, #EA580C 0%, #FB923C 50%, #EA580C 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: titleGlowOrange 3s ease-in-out infinite;
}

@keyframes titleGlowOrange {

    0%,
    100% {
        filter: drop-shadow(0 0 10px rgba(234, 88, 12, 0.3));
    }

    50% {
        filter: drop-shadow(0 0 20px rgba(234, 88, 12, 0.6));
    }
}

.use-cases .section-subtitle {
    color: #666;
}

.use-cases-container {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    position: relative;
    z-index: 1;
}

.use-case {
    position: relative;
    padding: 2.5rem;
    padding-top: 3.5rem;
    background: linear-gradient(135deg, rgba(234, 88, 12, 0.08) 0%, rgba(251, 146, 60, 0.05) 100%);
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08), inset 0 1px 0 rgba(234, 88, 12, 0.1);
    border: 1px solid rgba(234, 88, 12, 0.3);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    overflow: visible;
}

.use-case::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(234, 88, 12, 0.15), transparent);
    animation: shimmerOrange 4s infinite;
}

@keyframes shimmerOrange {
    0% {
        left: -100%;
    }

    100% {
        left: 100%;
    }
}

.use-case:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 50px rgba(234, 88, 12, 0.25), inset 0 1px 0 rgba(234, 88, 12, 0.2);
    border-color: rgba(234, 88, 12, 0.5);
    background: linear-gradient(135deg, rgba(234, 88, 12, 0.15) 0%, rgba(251, 146, 60, 0.1) 100%);
}

.use-case-number {
    position: absolute;
    top: -25px;
    left: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #EA580C, #FB923C);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    box-shadow: 0 5px 20px rgba(234, 88, 12, 0.4);
    animation: numberBounce 2s ease-in-out infinite;
    z-index: 10;
}

@keyframes numberBounce {

    0%,
    100% {
        transform: translateY(0);
        box-shadow: 0 5px 20px rgba(234, 88, 12, 0.4);
    }

    50% {
        transform: translateY(-5px);
        box-shadow: 0 10px 30px rgba(234, 88, 12, 0.6);
    }
}

.use-case h3 {
    font-size: 1.75rem;
    color: #EA580C;
    margin-bottom: 1rem;
    margin-top: 1rem;
}

.use-case-content p {
    color: #333;
    margin-bottom: 1rem;
}

.use-case-content ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 1.5rem;
}

.use-case-content li {
    padding: 0.5rem 0 0.5rem 2rem;
    position: relative;
    color: #555;
}

.use-case-content li:before {
    content: "→";
    position: absolute;
    left: 0;
    color: #EA580C;
    font-weight: bold;
    font-size: 1.25rem;
}

.use-case-benefit {
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, rgba(234, 88, 12, 0.12), rgba(251, 146, 60, 0.08));
    border-radius: 8px;
    border-left: 3px solid #EA580C;
    border: 1px solid rgba(234, 88, 12, 0.3);
}

.use-case-benefit strong {
    color: #EA580C;
}

/* Benefits Section */
.benefits {
    background: linear-gradient(180deg, #e8f4f8 0%, #d4e9f2 50%, #e8f4f8 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.benefits::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 25% 25%, rgba(100, 200, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(150, 100, 255, 0.08) 0%, transparent 50%);
    pointer-events: none;
    animation: gradientShift 10s ease-in-out infinite;
}

.benefits .section-header {
    position: relative;
    z-index: 1;
}

.benefits .section-title {
    background: linear-gradient(90deg, #0099CC 0%, #0077BB 50%, #0099CC 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: titleGlowBlue 3s ease-in-out infinite;
}

@keyframes titleGlowBlue {

    0%,
    100% {
        filter: drop-shadow(0 0 10px rgba(0, 153, 204, 0.3));
    }

    50% {
        filter: drop-shadow(0 0 20px rgba(0, 153, 204, 0.6));
    }
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.benefit-card {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(0, 153, 204, 0.08) 0%, rgba(0, 119, 187, 0.05) 100%);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 153, 204, 0.3);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    overflow: hidden;
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 153, 204, 0.15), transparent);
    animation: shimmerBlue 3s infinite;
}

@keyframes shimmerBlue {
    0% {
        left: -100%;
    }

    100% {
        left: 100%;
    }
}

.benefit-card:hover {
    background: linear-gradient(135deg, rgba(0, 153, 204, 0.15) 0%, rgba(0, 119, 187, 0.1) 100%);
    transform: translateY(-8px) scale(1.03);
    box-shadow: 0 20px 40px rgba(0, 153, 204, 0.25), inset 0 0 20px rgba(0, 153, 204, 0.08);
    border-color: rgba(0, 153, 204, 0.6);
}

.benefit-stat {
    font-size: 3.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #0099CC, #0077BB);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    animation: statGlowBlue 2s ease-in-out infinite;
}

@keyframes statGlowBlue {

    0%,
    100% {
        filter: drop-shadow(0 0 10px rgba(0, 153, 204, 0.3));
    }

    50% {
        filter: drop-shadow(0 0 20px rgba(0, 153, 204, 0.6));
    }
}

.benefit-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: #0077BB;
}

.benefit-card p {
    color: #555;
}

/* CTA Section */
.cta {
    background: linear-gradient(180deg, #1a1f2e 0%, #0f1419 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 50% 0%, rgba(212, 175, 55, 0.1) 0%, transparent 60%),
        radial-gradient(circle at 0% 100%, rgba(200, 16, 46, 0.08) 0%, transparent 60%),
        radial-gradient(circle at 100% 100%, rgba(0, 168, 107, 0.08) 0%, transparent 60%);
    pointer-events: none;
    animation: gradientShift 12s ease-in-out infinite;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    background: linear-gradient(90deg, #D4AF37 0%, #FFE066 25%, #FF8FB3 50%, #00D084 75%, #D4AF37 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    animation: titleGlowMulti 4s ease-in-out infinite;
}

@keyframes titleGlowMulti {

    0%,
    100% {
        filter: drop-shadow(0 0 10px rgba(212, 175, 55, 0.3));
    }

    25% {
        filter: drop-shadow(0 0 15px rgba(255, 107, 157, 0.4));
    }

    50% {
        filter: drop-shadow(0 0 20px rgba(0, 168, 107, 0.4));
    }

    75% {
        filter: drop-shadow(0 0 15px rgba(100, 200, 255, 0.4));
    }
}

.cta-content p {
    font-size: 1.25rem;
    color: #B0B8C1;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background: var(--tcm-ink);
    color: rgba(255, 255, 255, 0.8);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--secondary);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.footer-section p {
    margin-bottom: 0.5rem;
    line-height: 1.8;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--secondary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        transition: left 0.3s ease;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        left: 0;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero {
        min-height: 80vh;
        padding-top: 100px;
    }

    .hero-content {
        padding: 2rem 1.5rem;
        border-radius: 20px;
        max-width: 100%;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hipaa-badge {
        font-size: 0.85rem;
        padding: 0.6rem 1.2rem;
    }

    .hipaa-badge svg {
        width: 20px;
        height: 20px;
    }

    .btn-primary,
    .btn-hero,
    .btn-secondary {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .use-case {
        padding: 2rem 1.5rem;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .use-case-number {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.feature-card,
.use-case,
.benefit-card {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection Color */
::selection {
    background: var(--secondary);
    color: var(--white);
}

::-moz-selection {
    background: var(--secondary);
    color: var(--white);
}

/* Hero Tabs */
.hero-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.hero-tab {
    background: rgba(255, 255, 255, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.5);
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary);
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.hero-tab:hover {
    background: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

.hero-tab.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    box-shadow: 0 4px 15px rgba(139, 69, 19, 0.3);
}

.tab-content {
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* AI Physician Form */
.ai-physician-form {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.6);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
    position: relative;
}

.form-group {
    margin-bottom: 1rem;
}

.form-row {
    display: flex;
    gap: 1rem;
}

.form-row .form-group {
    flex: 1;
}

.ai-physician-form textarea,
.ai-physician-form input,
.ai-physician-form select {
    width: 100%;
    box-sizing: border-box;
    /* Ensure padding doesn't affect width */
    padding: 1rem;
    border: 1px solid rgba(139, 69, 19, 0.2);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.9);
    font-family: var(--font-primary);
    font-size: 1rem;
    color: var(--text-dark);
    transition: all 0.3s ease;
}

.ai-physician-form textarea:focus,
.ai-physician-form input:focus,
.ai-physician-form select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(139, 69, 19, 0.1);
}

.ai-result {
    margin-top: 2rem;
    text-align: left;
    background: rgba(255, 255, 255, 0.9);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(139, 69, 19, 0.1);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    max-height: 600px;
    overflow-y: auto;
}

.ai-result-content {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-dark);
    white-space: pre-wrap;
}

.ai-result-content h3 {
    color: var(--primary);
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    font-family: var(--font-chinese);
}

.ai-result-content ul {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.ai-result-content li {
    margin-bottom: 0.5rem;
}

/* File Upload Styles */
.file-upload-wrapper {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-upload {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: 1px dashed var(--primary);
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.btn-upload:hover {
    background: rgba(255, 255, 255, 0.8);
    border-style: solid;
}

.file-name {
    font-size: 0.9rem;
    color: var(--text-light);
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Targeted Questions Styles */
.preliminary-assessment {
    background: rgba(212, 175, 55, 0.1);
    padding: 1.5rem;
    border-radius: 10px;
    margin-bottom: 2rem;
    border-left: 4px solid var(--secondary);
    text-align: left;
}

.preliminary-assessment h3 {
    color: var(--primary);
    margin-bottom: 1rem;
    font-family: var(--font-chinese);
}

.question-card {
    background: rgba(255, 255, 255, 0.8);
    padding: 1.5rem;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    text-align: left;
}

.question-text {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.options-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.option-chip {
    padding: 0.5rem 1rem;
    border: 1px solid rgba(139, 69, 19, 0.3);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
    background: white;
}

.option-chip:hover {
    border-color: var(--primary);
    background: rgba(139, 69, 19, 0.05);
}

.option-chip.selected {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}