/* ============================================
   IJOHNS Manuscript Management Platform
   Professional Styling & Typography
   ============================================ */

/* Root Variables */
:root {
    /* Colors */
    --primary-blue: #0052CC;
    --primary-dark: #003366;
    --secondary-blue: #0066FF;
    --accent-blue: #1E88E5;
    --light-blue: #E3F2FD;
    --success-green: #27AE60;
    --warning-orange: #F39C12;
    --error-red: #E74C3C;
    --text-dark: #1A1A1A;
    --text-gray: #555555;
    --text-light: #999999;
    --border-gray: #E0E0E0;
    --bg-light: #F8F9FB;
    --bg-white: #FFFFFF;
    --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-heavy: 0 8px 24px rgba(0, 0, 0, 0.15);
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--text-dark);
    background-color: var(--bg-light);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   LAYOUT
   ============================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
}

/* ============================================
   HEADER
   ============================================ */

.header {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: white;
    padding: var(--spacing-xl) 0;
    box-shadow: var(--shadow-medium);
    margin-bottom: var(--spacing-2xl);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.logo-icon {
    font-size: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
}

.logo-text h1 {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin: 0;
}

.logo-text p {
    font-size: 14px;
    opacity: 0.95;
    margin-top: 4px;
}

.header-subtitle {
    text-align: right;
    opacity: 0.95;
}

.header-subtitle p {
    font-size: 14px;
    font-weight: 500;
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }
    
    .header-subtitle {
        text-align: center;
        margin-top: var(--spacing-md);
    }
    
    .logo-icon {
        width: 48px;
        height: 48px;
        font-size: 36px;
    }
    
    .logo-text h1 {
        font-size: 24px;
    }
}

/* ============================================
   PROGRESS INDICATOR
   ============================================ */

.progress-section {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-lg) 0;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-white);
    border: 2px solid var(--border-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--text-gray);
    font-size: 16px;
    transition: var(--transition);
}

.progress-step.active .step-number {
    background: var(--primary-blue);
    color: white;
    border-color: var(--primary-blue);
}

.step-title {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.progress-line {
    width: 60px;
    height: 2px;
    background: var(--border-gray);
    margin: 0 var(--spacing-sm);
}

@media (max-width: 768px) {
    .progress-section {
        gap: var(--spacing-sm);
    }
    
    .progress-line {
        width: 30px;
    }
    
    .step-title {
        font-size: 10px;
    }
}

/* ============================================
   MAIN CONTENT
   ============================================ */

.main-content {
    padding: var(--spacing-xl) 0;
}

/* ============================================
   FORM SECTION
   ============================================ */

.form-section {
    margin-bottom: var(--spacing-2xl);
}

.form-container {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-light);
}

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

.form-header h2 {
    font-size: 28px;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.form-subtitle {
    font-size: 16px;
    color: var(--text-gray);
}

/* ============================================
   FORM ELEMENTS
   ============================================ */

.form {
    width: 100%;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.form-row.full {
    grid-template-columns: 1fr;
}

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

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 4px;
}

.required {
    color: var(--error-red);
    font-weight: 700;
}

.form-input,
.file-input {
    padding: var(--spacing-md);
    border: 2px solid var(--border-gray);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: 14px;
    color: var(--text-dark);
    background: var(--bg-white);
    transition: var(--transition);
    width: 100%;
}

.form-input:focus,
.file-input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.1);
    background: var(--bg-white);
}

.form-input::placeholder {
    color: var(--text-light);
}

.form-help {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 4px;
}

/* ============================================
   FILE UPLOAD
   ============================================ */

.file-upload-wrapper {
    position: relative;
}

.file-input {
    display: none;
}

.file-upload-area {
    border: 2px dashed var(--border-gray);
    border-radius: var(--radius-md);
    padding: var(--spacing-2xl);
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--bg-light);
}

.file-upload-area:hover {
    border-color: var(--primary-blue);
    background: rgba(0, 82, 204, 0.02);
}

.file-upload-area.active {
    border-color: var(--primary-blue);
    background: rgba(0, 82, 204, 0.05);
}

.upload-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
}

.upload-text {
    pointer-events: none;
}

.upload-main {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.upload-sub {
    font-size: 13px;
    color: var(--text-light);
}

.file-name {
    font-size: 13px;
    color: var(--success-green);
    margin-top: var(--spacing-md);
    font-weight: 500;
    display: none;
}

.file-name.show {
    display: block;
}

.page-count {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 4px;
    display: none;
}

.page-count.show {
    display: block;
}

/* ============================================
   INFO BOX
   ============================================ */

.info-box {
    background: var(--light-blue);
    border-left: 4px solid var(--accent-blue);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin: var(--spacing-lg) 0;
}

.info-header {
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 8px;
    font-size: 14px;
}

.info-content {
    font-size: 14px;
    color: var(--text-dark);
    line-height: 1.6;
}

.info-content p {
    margin: 0;
}

.info-content strong {
    color: var(--primary-blue);
}

/* ============================================
   CHECKBOX
   ============================================ */

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    cursor: pointer;
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.5;
}

.checkbox-input {
    width: 20px;
    height: 20px;
    min-width: 20px;
    cursor: pointer;
    accent-color: var(--primary-blue);
    margin-top: 2px;
}

.checkbox-text {
    flex: 1;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-family: var(--font-family);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: white;
    box-shadow: var(--shadow-light);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-secondary {
    background: var(--bg-light);
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

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

.btn-spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ============================================
   FORM ACTIONS
   ============================================ */

.form-actions {
    text-align: center;
    margin-top: var(--spacing-xl);
}

.form-note {
    font-size: 12px;
    color: var(--text-light);
    margin-top: var(--spacing-md);
}

/* ============================================
   MESSAGE CONTAINERS
   ============================================ */

.error-container,
.success-container {
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    font-size: 14px;
}

.error-container {
    background: #FADBD8;
    border: 1px solid #F5B7B1;
    color: #922B21;
}

.success-container {
    background: #D5F4E6;
    border: 1px solid #ABEBC6;
    color: #0B5345;
}

.error-item {
    margin: 8px 0;
    padding-left: 24px;
    position: relative;
}

.error-item::before {
    content: "✕";
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* ============================================
   SUCCESS MESSAGE
   ============================================ */

.success-message {
    background: linear-gradient(135deg, rgba(39, 174, 96, 0.05), rgba(46, 204, 113, 0.05));
    border: 2px solid var(--success-green);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
}

.success-icon {
    font-size: 64px;
    margin-bottom: var(--spacing-md);
}

.success-message h3 {
    font-size: 24px;
    color: var(--success-green);
    margin-bottom: var(--spacing-md);
}

.success-message p {
    font-size: 14px;
    color: var(--text-gray);
    margin-bottom: var(--spacing-md);
}

.success-details {
    background: white;
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.detail-label {
    font-size: 12px;
    color: var(--text-light);
    font-weight: 600;
    text-transform: uppercase;
}

.detail-value {
    font-size: 16px;
    color: var(--primary-blue);
    font-weight: 600;
    font-family: var(--font-mono);
}

.success-note {
    font-size: 12px;
    color: var(--text-light);
    margin: var(--spacing-lg) 0;
    line-height: 1.6;
}

/* ============================================
   FAQ SECTION
   ============================================ */

.faq-section {
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.faq-section h2 {
    font-size: 24px;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-xl);
    text-align: center;
    font-weight: 700;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.faq-item {
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-gray);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.faq-item:hover {
    box-shadow: var(--shadow-medium);
    transform: translateY(-2px);
}

.faq-item h4 {
    font-size: 14px;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.faq-item p {
    font-size: 13px;
    color: var(--text-gray);
    line-height: 1.6;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: var(--primary-dark);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-2xl);
    border-top: 3px solid var(--primary-blue);
}

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

.footer-section h4 {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-section p {
    font-size: 13px;
    line-height: 1.6;
    opacity: 0.9;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
    font-size: 12px;
    opacity: 0.8;
}

.footer-bottom a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

.footer-bottom a:hover {
    opacity: 1;
    text-decoration: underline;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .form-container {
        padding: var(--spacing-lg);
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .success-details {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-light: #1F1F1F;
        --bg-white: #2A2A2A;
        --text-dark: #F5F5F5;
        --text-gray: #CCCCCC;
        --text-light: #999999;
        --border-gray: #3F3F3F;
    }
    
    .file-upload-area {
        background: rgba(0, 82, 204, 0.1);
    }
    
    .info-box {
        background: rgba(0, 82, 204, 0.15);
    }
    
    .success-details {
        background: #333333;
    }
}

/* Print styles */
@media print {
    .header,
    .footer,
    .progress-section,
    .form-actions,
    .faq-section {
        display: none;
    }
}