/* Base Styles & Reset */
:root {
    /* Color Palette */
    --color-dark: #0D0D0D;
    --color-dark-gray: #262626;
    --color-medium-gray: #595959;
    --color-light-gray: #A6A6A6;
    --color-light: #F2F2F2;
    
    /* App Colors */
    --color-primary: #3498db;
    --color-primary-dark: #2980b9;
    --color-secondary: #2c3e50;
    --color-success: #27ae60;
    --color-danger: #e74c3c;
    --color-warning: #f39c12;
    
    /* Text Colors */
    --text-dark: var(--color-dark);
    --text-medium: var(--color-medium-gray);
    --text-light: var(--color-light);
    
    /* Background Colors */
    --bg-light: var(--color-light);
    --bg-dark: var(--color-dark-gray);
    --bg-card: #ffffff;
    
    /* UI Elements */
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    
    /* Typography */
    --font-family: 'Roboto', sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.5;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Container Max Width */
    --container-max-width: 1200px;
}

/* Dark Mode Variables */
.dark-mode {
    --bg-light: var(--color-dark);
    --bg-dark: var(--color-dark-gray);
    --bg-card: var(--color-dark-gray);
    --text-dark: var(--color-light);
    --text-medium: var(--color-light-gray);
    --border-color: var(--color-medium-gray);
}

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: var(--line-height-base);
    color: var(--text-dark);
    background-color: var(--bg-light);
    transition: var(--transition);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
    margin-bottom: var(--spacing-md);
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--color-primary-dark);
}

img {
    max-width: 100%;
    height: auto;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Layout */
#app {
    flex: 1;
    position: relative;
}

/* Screens */
.screen {
    min-height: calc(100vh - 60px); /* Subtract footer height */
    padding: var(--spacing-xl) 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hidden {
    display: none !important;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    background-color: var(--color-light-gray);
    color: var(--text-dark);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--text-light);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-dark);
}

.btn-secondary {
    background-color: var(--color-secondary);
    color: var(--text-light);
}

.btn-secondary:hover:not(:disabled) {
    background-color: #34495e;
}

.btn-success {
    background-color: var(--color-success);
    color: var(--text-light);
}

.btn-success:hover:not(:disabled) {
    background-color: #219a52;
}

.btn-danger {
    background-color: var(--color-danger);
    color: var(--text-light);
}

.btn-danger:hover:not(:disabled) {
    background-color: #c0392b;
}

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

.btn-outline:hover:not(:disabled) {
    background-color: var(--color-light-gray);
    color: var(--text-dark);
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 50%;
}

/* Navigation Buttons */
.navigation-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-lg);
}

/* Forms */
.form {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: var(--spacing-md);
    width: 100%;
}

.form-group.small {
    flex: 0 0 120px;
}

.form-row {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--text-medium);
}

input, select, textarea {
    width: 100%;
    padding: 0.75rem;
    font-size: 1rem;
    border: 1px solid var(--color-light-gray);
    border-radius: var(--border-radius);
    background-color: var(--bg-card);
    color: var(--text-dark);
    transition: var(--transition);
}

.dark-mode input,
.dark-mode select,
.dark-mode textarea {
    border-color: var(--color-medium-gray);
    background-color: var(--color-dark);
    color: var(--text-light);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

/* Splash Screen */
#splash-screen {
    text-align: center;
}

.logo-container {
    margin-bottom: var(--spacing-lg);
}

.app-logo {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--text-dark);
}

.app-logo span {
    color: var(--color-primary);
}

.app-description {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    color: var(--text-medium);
}

#start-btn {
    margin-bottom: var(--spacing-md);
}

/* Theme Toggle */
.theme-toggle {
    margin-top: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

#theme-toggle-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    width: 40px;
    height: 40px;
}

.icon-light, .icon-dark {
    position: absolute;
    transition: var(--transition);
}

.light-mode .icon-dark {
    opacity: 0;
    transform: translateY(10px);
}

.dark-mode .icon-light {
    opacity: 0;
    transform: translateY(-10px);
}

/* Profession Selection */
.profession-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.profession-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    background-color: var(--bg-card);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.profession-card:hover {
    transform: translateY(-5px);
}

.profession-card.selected {
    border-color: var(--color-primary);
    background-color: rgba(52, 152, 219, 0.1);
}

.profession-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

/* Company Info */
.logo-upload-container {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.logo-preview {
    width: 100px;
    height: 100px;
    border: 1px dashed var(--color-light-gray);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-color: var(--bg-card);
}

.logo-preview img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.logo-upload-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.color-picker {
    height: 40px;
    border-radius: var(--border-radius);
    overflow: hidden;
}

/* Template Selection */
.template-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.template-card {
    background-color: var(--bg-card);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.template-card:hover {
    transform: translateY(-5px);
}

.template-card.selected {
    border-color: var(--color-primary);
}

.template-preview {
    height: 200px;
    padding: var(--spacing-sm);
    background-color: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-simple, .preview-modern, .preview-classic {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.preview-simple {
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="300" height="180" viewBox="0 0 300 180"><rect x="10" y="10" width="280" height="30" rx="2" fill="%23f0f0f0"/><rect x="10" y="50" width="280" height="10" rx="2" fill="%23e0e0e0"/><rect x="10" y="70" width="280" height="10" rx="2" fill="%23e0e0e0"/><rect x="10" y="90" width="280" height="10" rx="2" fill="%23e0e0e0"/><rect x="10" y="110" width="280" height="10" rx="2" fill="%23e0e0e0"/><rect x="10" y="140" width="130" height="20" rx="2" fill="%23e0e0e0"/></svg>');
}

.preview-modern {
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="300" height="180" viewBox="0 0 300 180"><rect x="10" y="10" width="280" height="40" rx="4" fill="%233498db"/><rect x="20" y="20" width="260" height="20" rx="2" fill="%23ffffff"/><rect x="10" y="60" width="135" height="50" rx="4" fill="%23f0f0f0"/><rect x="155" y="60" width="135" height="50" rx="4" fill="%23f0f0f0"/><rect x="10" y="120" width="280" height="40" rx="4" fill="%23f0f0f0"/></svg>');
}

.preview-classic {
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="300" height="180" viewBox="0 0 300 180"><rect x="10" y="10" width="280" height="160" rx="0" stroke="%23000000" stroke-width="2" fill="none"/><line x1="10" y1="40" x2="290" y2="40" stroke="%23000000" stroke-width="2"/><line x1="10" y1="120" x2="290" y2="120" stroke="%23000000" stroke-width="2"/><rect x="20" y="15" width="260" height="20" rx="0" fill="%23f0f0f0"/><rect x="20" y="50" width="260" height="60" rx="0" fill="%23f9f9f9"/></svg>');
}

.template-info {
    padding: var(--spacing-md);
}

.template-info h3 {
    margin-bottom: var(--spacing-xs);
}

.template-info p {
    color: var(--text-medium);
    margin-bottom: 0;
}

/* Quote Items */
.quote-item {
    background-color: var(--bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.item-total {
    padding: 0.75rem;
    background-color: var(--color-light);
    border-radius: var(--border-radius);
    font-weight: 700;
}

.dark-mode .item-total {
    background-color: var(--color-dark-gray);
}

.quote-summary {
    margin: var(--spacing-lg) 0;
    background-color: var(--bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--box-shadow);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-light-gray);
}

.dark-mode .summary-row {
    border-color: var(--color-medium-gray);
}

.summary-row:last-child {
    border-bottom: none;
    padding-top: var(--spacing-md);
    font-weight: 700;
    font-size: 1.2rem;
}

.quote-total {
    color: var(--color-primary);
}

/* Preview Screen */
.preview-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.quote-preview-container {
    background-color: var(--bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    box-shadow: var(--box-shadow);
    min-height: 500px;
}

/* History Screen */
.history-list {
    margin: var(--spacing-lg) 0;
}

.history-item {
    background-color: var(--bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--box-shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.history-item-info {
    flex: 1;
}

.history-item-title {
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.history-item-date {
    color: var(--text-medium);
    font-size: 0.9rem;
}

.history-item-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.empty-history {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-medium);
}

/* Footer */
.footer {
    background-color: var(--color-dark-gray);
    color: var(--text-light);
    padding: var(--spacing-md) 0;
    text-align: center;
}

.footer a {
    color: var(--color-primary);
}

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

/* Quote Templates */
/* These styles will be applied to the preview and final quote */

/* Simple Template */
.template-simple {
    font-family: inherit;
    color: var(--text-dark);
}

.template-simple .quote-header {
    margin-bottom: var(--spacing-lg);
}

.template-simple .quote-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.template-simple .company-info,
.template-simple .client-info {
    margin-bottom: var(--spacing-md);
}

.template-simple .quote-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-lg) 0;
}

.template-simple .quote-table th {
    background-color: var(--color-light-gray);
    padding: var(--spacing-sm);
    text-align: left;
}

.template-simple .quote-table td {
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--color-light-gray);
}

.template-simple .quote-total-row {
    font-weight: 700;
}

.template-simple .quote-notes {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-light-gray);
}

/* Modern Template */
.template-modern {
    font-family: inherit;
    color: var(--text-dark);
}

.template-modern .quote-header {
    background-color: var(--color-primary);
    color: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    margin-bottom: var(--spacing-lg);
}

.template-modern .quote-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.template-modern .company-info,
.template-modern .client-info {
    background-color: var(--bg-light);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--box-shadow);
}

.template-modern .quote-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 var(--spacing-sm);
    margin: var(--spacing-lg) 0;
}

.template-modern .quote-table th {
    background-color: var(--color-secondary);
    color: white;
    padding: var(--spacing-sm);
    text-align: left;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.template-modern .quote-table td {
    padding: var(--spacing-sm);
    background-color: var(--bg-light);
    border-bottom: 1px solid var(--color-light-gray);
}

.template-modern .quote-table tr:last-child td {
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.template-modern .quote-total-row {
    font-weight: 700;
    background-color: var(--color-primary) !important;
    color: white;
}

.template-modern .quote-notes {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: var(--bg-light);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* Classic Template */
.template-classic {
    font-family: inherit;
    color: var(--text-dark);
    border: 2px solid var(--color-dark);
    padding: var(--spacing-lg);
}

.template-classic .quote-header {
    text-align: center;
    border-bottom: 2px solid var(--color-dark);
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.template-classic .quote-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
}

.template-classic .info-container {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.template-classic .company-info,
.template-classic .client-info {
    width: 48%;
}

.template-classic .quote-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-lg) 0;
    border: 1px solid var(--color-dark);
}

.template-classic .quote-table th {
    background-color: var(--color-dark);
    color: white;
    padding: var(--spacing-sm);
    text-align: left;
    border: 1px solid var(--color-dark);
}

.template-classic .quote-table td {
    padding: var(--spacing-sm);
    border: 1px solid var(--color-dark);
}

.template-classic .quote-total-row {
    font-weight: 700;
}

.template-classic .quote-notes {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 2px solid var(--color-dark);
}

/* Responsive Styles */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .form-row {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .profession-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .template-grid {
        grid-template-columns: 1fr;
    }
    
    .logo-upload-container {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .preview-actions {
        flex-direction: column;
    }
    
    .preview-actions button {
        width: 100%;
    }
    
    .navigation-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .navigation-buttons button {
        width: 100%;
    }
    
    .template-classic .info-container {
        flex-direction: column;
    }
    
    .template-classic .company-info,
    .template-classic .client-info {
        width: 100%;
        margin-bottom: var(--spacing-md);
    }
}

/* Animations */
.animate__animated {
    animation-duration: 0.5s;
}

/* Print Styles */
@media print {
    body {
        background-color: white;
    }
    
    #app > * {
        display: none;
    }
    
    #preview-screen {
        display: block;
        padding: 0;
        min-height: auto;
    }
    
    .preview-actions, .navigation-buttons, .footer {
        display: none;
    }
    
    .quote-preview-container {
        box-shadow: none;
        padding: 0;
        margin: 0;
    }
}

/* Accessibility Focus Styles */
button:focus, a:focus, input:focus, select:focus, textarea:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Skip focus outline for mouse users, but keep it for keyboard navigation */
button:focus:not(:focus-visible),
a:focus:not(:focus-visible),
input:focus:not(:focus-visible),
select:focus:not(:focus-visible),
textarea:focus:not(:focus-visible) {
    outline: none;
}