@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&display=swap');

:root {
    --black: #000000;
    --cyan: rgb(22, 186, 222);
    --cyan-hex: #16BAE0;
    --white: #ffffff;
    --light-gray: #f5f5f5;
    --gray: #666666;
    --dark-gray: #333333;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--white);
    color: var(--black);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    cursor: default;
}

.container {
    width: 100%;
    margin: 0;
    padding: 0;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background: black;
    /* background: var(--black); */
    padding: 2rem 2rem;
    margin-bottom: 0;
    text-align: left;
}

.title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0;
    text-transform: uppercase;
    line-height: 1;
}

.title-white {
    color: var(--white);
}

.title-blue {
    color: var(--cyan-hex);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    min-height: 400px;
    padding: 0;
    width: 100%;
}

/* Patient Form Section */
.patient-form-section {
    width: 100%;
    max-width: 600px;
    margin-bottom: 3rem;
    padding: 2rem;
    border: 2px solid var(--black);
    background: var(--white);
}

.form-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-align: center;
}

.patient-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--black);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-input,
.form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--black);
    background: var(--white);
    color: var(--black);
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color 0.3s, background-color 0.3s;
    box-sizing: border-box;
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--cyan-hex);
    background: var(--light-gray);
}

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23000000' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form-select:hover {
    background-color: var(--light-gray);
}

/* Upload Section */
.upload-section {
    width: 100%;
    max-width: 500px; 
    margin: 4.5rem auto;
    margin-top: 7rem;
    margin-bottom: 7rem;
    padding: 0 2rem;
}

.drop-zone {
    border: 3px dashed var(--black);
    border-radius: 0;
    padding: 4rem 2rem;
    text-align: center;
    background: var(--white);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.drop-zone::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(22, 186, 222, 0.1), transparent);
    transition: left 0.5s;
}

.drop-zone:hover::before {
    left: 100%;
}

.drop-zone:hover {
    border-color: var(--cyan-hex);
    background: var(--light-gray);
    transform: translateY(-2px);
}

.drop-zone.drag-over {
    border-color: var(--cyan-hex);
    background: rgba(22, 186, 222, 0.05);
    transform: scale(1.02);
}

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

.drop-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    stroke: var(--black);
    transition: stroke 0.3s;
}

.drop-zone:hover .drop-icon {
    stroke: var(--cyan-hex);
}

.drop-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.drop-text {
    font-size: 1rem;
    color: var(--gray);
    font-weight: 300;
}

/* Steps Section - Always visible at bottom before footer */
.steps-section {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 3rem;
    margin-top: 0;
    padding: 3rem 2rem;
    flex-wrap: nowrap;
    background: #ecebe5;
    width: 100%;
    /* Always visible, not affected by section hiding */
    position: relative;
    z-index: 1;
    /* Ensure it's always displayed */
    visibility: visible !important;
    display: flex !important;
}

.step-item {
    flex: 1;
    min-width: 250px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.step-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    border: 2px solid var(--black);
    border-radius: 50%;
    background: var(--white);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.step-icon svg {
    stroke: var(--black);
    transition: stroke 0.3s;
}

.step-item:hover .step-icon {
    background: var(--black);
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.step-item:hover .step-icon svg {
    stroke: var(--white);
}

.step-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
    line-height: 1.4;
}

.step-description {
    font-size: 0.95rem;
    color: var(--gray);
    font-weight: 300;
    line-height: 1.6;
}

/* Processing Section */
.processing-section {
    width: 100%;
    max-width: 500px;
    text-align: center;
}

.processing-content {
    padding: 2rem;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--light-gray);
    border-top-color: var(--cyan-hex);
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    animation: spin 1s linear infinite;
}

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

.processing-text {
    font-size: 1.1rem;
    color: var(--black);
    margin-bottom: 1.5rem;
    font-weight: 400;
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: var(--light-gray);
    border-radius: 0;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--cyan-hex);
    width: 0%;
    transition: width 0.3s ease;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Result Section */
.result-section {
    width: 100%;
    max-width: 900px;
    text-align: center;
}

.result-content {
    padding: 2rem;
    animation: fadeInUp 0.5s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.success-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 1.5rem;
    stroke: var(--cyan-hex);
    stroke-width: 3;
}

.result-title {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.result-text {
    font-size: 1rem;
    color: var(--gray);
    margin-bottom: 2rem;
    font-weight: 300;
}

/* Comments Section */
.comments-section {
    width: 100%;
    max-width: 600px;
    margin: 2rem auto;
    text-align: left;
}

.comments-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.comments-textarea {
    width: 100%;
    min-height: 120px;
    padding: 1rem;
    border: 2px solid var(--black);
    background: var(--white);
    color: var(--black);
    font-family: inherit;
    font-size: 0.95rem;
    resize: vertical;
    transition: border-color 0.3s;
    box-sizing: border-box;
}

.comments-textarea:focus {
    outline: none;
    border-color: var(--cyan-hex);
}

.comments-textarea::placeholder {
    color: var(--gray);
}

.update-btn {
    background: transparent;
    color: var(--black);
    border: 2px solid var(--black);
    padding: 0.75rem 2rem;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 1rem;
}

.update-btn:hover {
    background: var(--black);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    animation: fadeIn 0.3s ease;
}

.modal-overlay.hidden {
    display: none !important;
    visibility: hidden;
    opacity: 0;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal-container {
    width: 95%;
    max-width: 1200px;
    height: 90vh;
    background: var(--white);
    display: flex;
    flex-direction: column;
    animation: slideUp 0.3s ease;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

@keyframes slideUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 2px solid var(--black);
    background: var(--white);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--black);
    margin: 0;
    letter-spacing: -0.01em;
}

.modal-close {
    background: transparent;
    border: 2px solid var(--black);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0;
}

.modal-close:hover {
    background: var(--black);
    color: var(--white);
    transform: rotate(90deg);
}

.modal-close svg {
    stroke: currentColor;
}

.modal-content {
    flex: 1;
    overflow: hidden;
    background: var(--light-gray);
    position: relative;
}

.patient-modal {
    max-width: 500px;
    height: auto;
}

.patient-modal-content {
    padding: 2rem;
    background: var(--white);
}

.form-actions {
    margin-top: 2rem;
    display: flex;
    justify-content: flex-end;
}

.submit-btn {
    background: var(--black);
    color: var(--white);
    border: 2px solid var(--black);
    padding: 0.75rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    overflow: hidden;
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--cyan-hex);
    transition: left 0.3s;
    z-index: -1;
}

.submit-btn:hover {
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.submit-btn:hover::before {
    left: 0;
}

.submit-btn:active {
    transform: translateY(0);
}

.pdf-preview-modal {
    width: 100%;
    height: 100%;
    border: none;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.preview-btn {
    background: var(--cyan-hex);
    color: var(--white);
    border: 2px solid var(--cyan-hex);
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    overflow: hidden;
}

.preview-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--black);
    transition: left 0.3s;
    z-index: -1;
}

.preview-btn:hover {
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(22, 186, 222, 0.3);
}

.preview-btn:hover::before {
    left: 0;
}

.preview-btn:active {
    transform: translateY(0);
}

.download-btn {
    background: var(--black);
    color: var(--white);
    border: 2px solid var(--black);
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    overflow: hidden;
}

.download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--cyan-hex);
    transition: left 0.3s;
    z-index: -1;
}

.download-btn:hover {
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.download-btn:hover::before {
    left: 0;
}

.download-btn:active {
    transform: translateY(0);
}

/* Back Button Container */
.back-button-container {
    display: flex;
    justify-content: center;
    margin-top: 1.5rem;
}

.back-btn {
    background: transparent;
    color: var(--black);
    border: 2px solid var(--black);
    padding: 0.75rem 2rem;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    overflow: hidden;
}

.back-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--black);
    transition: left 0.3s;
    z-index: -1;
}

.back-btn:hover {
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.back-btn:hover::before {
    left: 0;
}

.back-btn:active {
    transform: translateY(0);
}

/* Error Section */
.error-section {
    width: 100%;
    max-width: 500px;
    text-align: center;
}

.error-content {
    padding: 2rem;
    animation: fadeInUp 0.5s ease;
}

.error-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 1.5rem;
    stroke: var(--black);
}

.error-title {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.error-text {
    font-size: 1rem;
    color: var(--gray);
    margin-bottom: 2rem;
    font-weight: 300;
}

.retry-btn {
    background: transparent;
    color: var(--black);
    border: 2px solid var(--black);
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.retry-btn:hover {
    background: var(--black);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.retry-btn:active {
    transform: translateY(0);
}

/* Footer */
.footer {
    text-align: center;
    padding: 5rem 0;
    border-top: 1px solid var(--light-gray);
    margin-top: 4rem;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #282828;
}

.footer-logo {
    height: 40px;
    width: auto;
    max-width: 200px;
    display: block;
    object-fit: contain;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        padding: 2rem 1.5rem;
    }
    
    .title {
        font-size: 2rem;
    }
    
    .footer-logo {
        height: 30px;
    }
    
    .main-content {
        padding: 0;
    }
    
    .upload-section {
        margin: 4.5rem auto;
        padding: 0 1.5rem;
    }
    
    .drop-zone {
        padding: 3rem 1.5rem;
    }
    
    .drop-title {
        font-size: 1.2rem;
    }
    
    .steps-section {
        flex-direction: column;
        gap: 2rem;
        margin-top: 0;
        padding: 2rem 1rem;
    }
    
    .step-item {
        width: 100%;
    }
    
    .step-icon {
        width: 70px;
        height: 70px;
    }
    
    .step-title {
        font-size: 1.1rem;
    }
    
    .step-description {
        font-size: 0.9rem;
    }
}

/* Grain overlay for texture */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='4' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 1000;
}