/* CSS Variables - Premium Design System */
:root {
    --primary: #2A4736;         /* Deep Forest Green */
    --primary-light: #3E604C;   /* Medium Sage */
    --primary-lightest: #F0F4F2;/* Soft Sage tint */
    --accent: #C5A880;          /* Warm Gold */
    --accent-dark: #A68A62;     /* Darker Gold */
    --bg-app: #FAF8F5;          /* Warm Cream Background */
    --bg-card: #FFFFFF;         /* White Card Background */
    --text-main: #2D3748;       /* Charcoal Text */
    --text-muted: #718096;      /* Muted Gray Text */
    --border: #E2E8F0;          /* Clean Border */
    --success: #3E7A5E;         /* Success/Print Green */
    --danger: #9B2C2C;          /* Danger/Reset Red */
    --font-ui: 'Outfit', sans-serif;
    --font-doc: 'Cormorant Garamond', serif;
    
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.02);
    --shadow-md: 0 10px 20px rgba(42, 71, 54, 0.04), 0 2px 8px rgba(0, 0, 0, 0.02);
    --shadow-lg: 0 20px 40px rgba(42, 71, 54, 0.08), 0 4px 12px rgba(0, 0, 0, 0.03);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-app);
    color: var(--text-main);
    font-family: var(--font-ui);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header Styles */
.app-header {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 1.25rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-container {
    max-width: 1440px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.logo-icon {
    font-size: 2.2rem;
    background-color: var(--primary-lightest);
    padding: 0.5rem;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-area h1 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.1;
}

.logo-area .subtitle {
    font-size: 0.8rem;
    color: var(--accent-dark);
    font-weight: 500;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-top: 0.1rem;
}

/* Mode Selector Tabs */
.mode-selector {
    display: flex;
    background-color: var(--primary-lightest);
    padding: 0.35rem;
    border-radius: var(--radius-md);
    gap: 0.25rem;
}

.tab-button {
    font-family: var(--font-ui);
    background: none;
    border: none;
    padding: 0.6rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
    border-radius: calc(var(--radius-md) - 2px);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.tab-button:hover {
    color: var(--primary);
}

.tab-button.active {
    background-color: var(--primary);
    color: #FFFFFF;
    box-shadow: 0 4px 10px rgba(42, 71, 54, 0.15);
}

.tab-icon {
    font-size: 1rem;
}

/* Main Layout Container */
.app-container {
    flex: 1;
    max-width: 1440px;
    width: 100%;
    margin: 0 auto;
    padding: 2rem;
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 2rem;
    align-items: start;
}

@media (max-width: 1024px) {
    .app-container {
        grid-template-columns: 1fr;
    }
}

/* Form Panel Styles */
.form-panel {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 6rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-height: calc(100vh - 10rem);
    overflow-y: auto;
}

@media (max-width: 1024px) {
    .form-panel {
        position: static;
        max-height: none;
    }
}

.form-section {
    display: none;
    opacity: 0;
    transform: translateY(10px);
    transition: var(--transition);
}

.form-section.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.section-title h2 {
    font-size: 1.25rem;
    color: var(--primary);
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.section-title p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.form-group-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    margin-top: 1.5rem;
}

@media (max-width: 480px) {
    .form-group-grid {
        grid-template-columns: 1fr;
    }
}

.input-wrapper {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.input-wrapper.full-width {
    grid-column: span 2;
}

@media (max-width: 480px) {
    .input-wrapper.full-width {
        grid-column: span 1;
    }
}

.input-wrapper label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-main);
    letter-spacing: 0.2px;
}

.input-wrapper input,
.input-wrapper select {
    font-family: var(--font-ui);
    font-size: 0.95rem;
    padding: 0.75rem 1rem;
    background-color: #FAF8F5;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    transition: var(--transition);
    width: 100%;
}

.input-wrapper input:focus,
.input-wrapper select:focus {
    outline: none;
    border-color: var(--primary);
    background-color: #FFFFFF;
    box-shadow: 0 0 0 3px rgba(42, 71, 54, 0.12);
}

.input-wrapper input::placeholder {
    color: var(--text-muted);
    opacity: 0.6;
}

/* Buttons and Actions */
.admin-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

@media (max-width: 480px) {
    .admin-actions {
        flex-direction: column;
    }
}

.btn-primary, .btn-secondary, .btn-success, .btn-danger, .btn-outline {
    font-family: var(--font-ui);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.8rem 1.5rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary);
    color: #FFFFFF;
    flex: 1;
}

.btn-primary:hover {
    background-color: var(--primary-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(42, 71, 54, 0.15);
}

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

.btn-secondary:hover {
    background-color: #E2ECE6;
    color: var(--primary-light);
}

.btn-success {
    background-color: var(--success);
    color: #FFFFFF;
}

.btn-success:hover {
    background-color: #31614A;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(62, 122, 94, 0.2);
}

.btn-danger {
    background-color: #FAF5F5;
    color: var(--danger);
    border: 1px solid #F3DDDD;
}

.btn-danger:hover {
    background-color: #F8E8E8;
}

.btn-outline {
    background-color: transparent;
    color: var(--text-main);
    border: 1px solid var(--border);
}

.btn-outline:hover {
    background-color: #FAF8F5;
    border-color: var(--text-muted);
}

/* Share URL Box */
.url-share-box {
    margin-top: 1.5rem;
    padding: 1.25rem;
    background-color: var(--primary-lightest);
    border: 1px solid rgba(42, 71, 54, 0.1);
    border-radius: var(--radius-md);
    animation: fadeIn 0.3s ease-out;
}

.share-instructions {
    font-size: 0.8rem;
    color: var(--primary-light);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.share-input-row {
    display: flex;
    gap: 0.5rem;
}

.share-input-row input {
    flex: 1;
    font-family: var(--font-ui);
    font-size: 0.85rem;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background-color: #FFFFFF;
    color: var(--text-muted);
}

.share-input-row button {
    font-family: var(--font-ui);
    font-weight: 600;
    font-size: 0.85rem;
    padding: 0.5rem 1rem;
    background-color: var(--accent);
    color: #FFFFFF;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.share-input-row button:hover {
    background-color: var(--accent-dark);
}

.toast-msg {
    display: block;
    font-size: 0.75rem;
    color: var(--success);
    font-weight: 600;
    margin-top: 0.4rem;
    opacity: 0;
    transition: var(--transition);
}

.toast-msg.show {
    opacity: 1;
}

/* Locked badge for Student Mode */
.aluno-badge-info {
    margin-top: 1.5rem;
    padding: 0.75rem 1rem;
    background-color: #FFFDF5;
    border: 1px solid #FFEAA6;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: #8C6D0F;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Global Actions (Save, Copy, Clear) */
.global-actions {
    margin-top: auto;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 0.75rem;
}

@media (max-width: 600px) {
    .global-actions {
        grid-template-columns: 1fr;
    }
}

/* Toast Clipboard Notification */
.toast-notification {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background-color: var(--primary);
    color: #FFFFFF;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    font-size: 0.9rem;
    font-weight: 500;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.toast-notification.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Preview Panel (Contract Visualization) */
.preview-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.preview-header h3 {
    font-size: 1.1rem;
    color: var(--primary);
    font-weight: 700;
}

.preview-badge {
    background-color: var(--accent);
    color: #FFFFFF;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-sm);
    letter-spacing: 0.5px;
}

.document-wrapper {
    background-color: #E2E8F0;
    border-radius: var(--radius-lg);
    padding: 2rem;
    border: 1px solid var(--border);
    display: flex;
    justify-content: center;
    overflow-x: auto;
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.05);
}

/* A4 Document Simulation */
.document-page {
    background-color: #FFFFFF;
    width: 100%;
    max-width: 800px;
    min-height: 1129px; /* A4 aspect ratio relation */
    padding: 4.5rem 5rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05), 0 2px 10px rgba(0, 0, 0, 0.02);
    font-family: var(--font-doc);
    font-size: 1.15rem;
    color: #1A202C;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    border-radius: 4px;
}

@media (max-width: 768px) {
    .document-wrapper {
        padding: 0.5rem;
    }
    .document-page {
        padding: 2.5rem 2rem;
        font-size: 1rem;
    }
}

.doc-title {
    font-size: 1.35rem;
    font-weight: 700;
    text-align: center;
    color: #000000;
    margin-bottom: 2.5rem;
    letter-spacing: 0.5px;
    font-family: var(--font-doc);
}

.doc-paragraph {
    margin-bottom: 1.25rem;
    text-align: justify;
    word-break: break-word;
}

.doc-clause-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-top: 1.75rem;
    margin-bottom: 0.75rem;
    text-align: left;
    color: #000000;
}

/* Placeholders inside the contract */
.placeholder-span {
    background-color: #FFFBEB;
    border-bottom: 2px dashed var(--accent);
    padding: 0.1rem 0.35rem;
    border-radius: 3px;
    font-weight: 600;
    color: #B27C24;
    transition: var(--transition);
    display: inline-block;
}

.placeholder-span.filled {
    background-color: transparent;
    border-bottom: none;
    padding: 0;
    border-radius: 0;
    font-weight: 700;
    color: #1A202C;
}

.placeholder-span.admin-var {
    background-color: #F0FDF4;
    border-bottom: 2px dashed var(--primary-light);
    color: var(--primary-light);
}

.placeholder-span.admin-var.filled {
    background-color: transparent;
    border-bottom: none;
    padding: 0;
    color: #1A202C;
}

/* Signature Block */
.signature-section {
    display: flex;
    justify-content: space-between;
    margin-top: auto;
    padding-top: 4rem;
    gap: 3rem;
}

@media (max-width: 480px) {
    .signature-section {
        flex-direction: column;
        gap: 2.5rem;
        padding-top: 2rem;
    }
}

.signature-block {
    flex: 1;
    text-align: center;
}

.sig-line {
    border-top: 1px solid #718096;
    margin-bottom: 0.5rem;
    width: 100%;
}

.signature-block p {
    font-size: 0.95rem;
    color: #2D3748;
}

/* Footer Section */
.app-footer {
    background-color: var(--bg-card);
    border-top: 1px solid var(--border);
    padding: 1.5rem;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: auto;
}

/* Keyframe animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* PRINT MEDIA STYLES - CRITICAL FOR PDF GENERATION */
@media print {
    /* Hide everything except the document container */
    body, html {
        background-color: #FFFFFF !important;
        color: #000000 !important;
        margin: 0 !important;
        padding: 0 !important;
        min-height: auto !important;
        width: 100% !important;
    }
    
    .app-header, 
    .form-panel, 
    .preview-header, 
    .app-footer,
    .global-actions {
        display: none !important;
    }
    
    .app-container {
        display: block !important;
        padding: 0 !important;
        margin: 0 !important;
        width: 100% !important;
        max-width: none !important;
    }
    
    .preview-panel {
        display: block !important;
        width: 100% !important;
    }
    
    .document-wrapper {
        background-color: transparent !important;
        padding: 0 !important;
        margin: 0 !important;
        border: none !important;
        box-shadow: none !important;
        display: block !important;
        overflow: visible !important;
    }
    
    .document-page {
        box-shadow: none !important;
        padding: 20mm 20mm 20mm 20mm !important; /* Standard margins */
        margin: 0 auto !important;
        width: 100% !important;
        max-width: none !important;
        min-height: auto !important;
        font-size: 12pt !important;
        line-height: 1.6 !important;
        page-break-after: always;
        background-color: transparent !important;
        border: none !important;
        color: #000000 !important;
    }
    
    /* Placeholders in printed document should look neat */
    .placeholder-span {
        background-color: transparent !important;
        border-bottom: 1px solid #718096 !important;
        color: #000000 !important;
        font-weight: normal !important;
        padding: 0 !important;
    }
    
    .placeholder-span.filled {
        border-bottom: none !important;
        font-weight: bold !important;
    }
    
    /* Force high quality graphic rendering for print */
    * {
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }
}

/* Student Mode Styles (Hiding preview and making form full width) */
body.student-mode-active .app-container {
    grid-template-columns: 1fr;
    max-width: 800px;
}

body.student-mode-active .preview-panel {
    display: none;
}

body.student-mode-active .global-actions {
    display: none;
}

/* Google Drive Integration Instructions styling */
details.integration-instructions {
    grid-column: span 2;
    background-color: var(--primary-lightest);
    padding: 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(42, 71, 54, 0.1);
    font-size: 0.85rem;
    color: var(--text-main);
    transition: var(--transition);
}

details.integration-instructions[open] summary {
    margin-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.5rem;
}

details.integration-instructions summary {
    font-weight: 600;
    cursor: pointer;
    color: var(--primary);
    outline: none;
}

.instructions-content ol {
    margin-left: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.instructions-content pre {
    background-color: #FFFFFF;
    border: 1px solid var(--border);
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    overflow-x: auto;
    font-size: 0.75rem;
    margin-top: 0.25rem;
    max-height: 150px;
}

/* Success Overlay Styles */
.success-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(42, 71, 54, 0.6);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.success-overlay.show {
    opacity: 1;
}

.success-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    max-width: 500px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    transform: scale(0.9);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.success-overlay.show .success-card {
    transform: scale(1);
}

.success-icon-container {
    margin-bottom: 1.5rem;
    color: var(--success);
    display: inline-flex;
    justify-content: center;
    align-items: center;
    background-color: var(--primary-lightest);
    padding: 1rem;
    border-radius: 50%;
}

.success-card h2 {
    font-size: 1.8rem;
    color: var(--primary);
    font-weight: 700;
    margin-bottom: 1rem;
}

.success-card p {
    font-size: 1.05rem;
    color: var(--text-main);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.success-card p.secondary-text {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 1.5rem;
}