/* Root Variables */
:root {
    --primary-color: #03989E;
    --secondary-color: #0277BD;
    --background-light: #FFFFFF;
    --background-gray: #F5F7FA;
    --text-primary: #1A1A1A;
    --text-secondary: #666666;
    --border-color: #E0E0E0;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
    --radius: 12px;
    --transition: all 0.3s ease;
}

.dark-theme {
    --primary-color: #03989E;
    --secondary-color: #4FC3F7;
    --background-light: #1E1E1E;
    --background-gray: #2A2A2A;
    --text-primary: #FFFFFF;
    --text-secondary: #B0B0B0;
    --border-color: #404040;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.4);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-gray);
    transition: var(--transition);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background-color: var(--background-light);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 5px 0;
}

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

.nav-brand h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 700;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

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

.nav-brand .logo {
    width: 200px;
    float: left;
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--text-primary);
    transition: var(--transition);
    border-radius: 50%;
}

.theme-toggle:hover {
    background-color: var(--background-gray);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 4rem 0 3rem;
    text-align: center;
}

.hero-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-content p {
    font-size: 1.25rem;
    opacity: 0.95;
}

/* Translator Section */
.translator-section {
    padding: 3rem 0;
}

.translator-card {
    background-color: var(--background-light);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.translator-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    background-color: var(--background-gray);
    gap: 1rem;
}

.select-group {
    flex: 1;
}

.language-select {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--background-light);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
}

.language-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.swap-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.swap-button:hover {
    transform: rotate(180deg);
    background-color: var(--secondary-color);
}

.translator-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.input-area,
.output-area {
    display: flex;
    flex-direction: column;
}

.input-area {
    border-right: 2px solid var(--background-gray);
}

.textarea-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background-color: var(--background-gray);
    border-bottom: 1px solid var(--border-color);
}

.char-count {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.clear-button,
.copy-button {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.clear-button:hover,
.copy-button:hover {
    color: var(--primary-color);
}

.translator-textarea {
    width: 100%;
    min-height: 300px;
    padding: 1.5rem;
    border: none;
    resize: vertical;
    font-size: 1rem;
    font-family: inherit;
    line-height: 1.6;
    background-color: var(--background-light);
    color: var(--text-primary);
}

.translator-textarea:focus {
    outline: none;
}

.translator-textarea::placeholder {
    color: var(--text-secondary);
}

/* Info Section */
.info-section {
    margin-top: 3rem;
    padding: 2rem;
    background-color: var(--background-light);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.info-section h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.info-section p {
    color: var(--text-secondary);
    line-height: 1.8;
}

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

.feature-card {
    text-align: center;
    padding: 1.5rem;
}

.feature-card svg {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature-card h4 {
    margin-bottom: 0.5rem;
    font-size: 1.125rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* Projects Section */
.projects-section {
    padding: 4rem 0;
    background-color: var(--background-light);
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    color: var(--text-primary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: var(--background-gray);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.project-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.project-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.project-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.project-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1rem 0;
}

.feature-tag {
    background-color: var(--primary-color);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
}

.bot-list {
    list-style: none;
    padding-left: 0;
    margin: 1rem 0;
}

.bot-list li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

.bot-list strong {
    color: var(--primary-color);
    font-family: monospace;
}

.project-link {
    display: inline-block;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    margin-top: 1rem;
    transition: var(--transition);
}

.project-link:hover {
    color: var(--secondary-color);
}

/* Contact Section */
.contact-section {
    padding: 4rem 0;
    background-color: var(--background-gray);
    text-align: center;
}

.contact-description {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.125rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.social-link.telegram {
    background-color: #0088cc;
    color: white;
}

.social-link.linkedin {
    background-color: #0077b5;
    color: white;
}

.social-link.instagram {
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
    color: white;
}

.social-link:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* Footer */
.footer {
    background-color: var(--background-light);
    padding: 2rem 0;
    text-align: center;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
}

.footer-links {
    margin-top: 1rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    margin: 0 0.5rem;
    transition: var(--transition);
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content h2 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    /* Make navbar more compact on mobile */
    .navbar {
        padding: 8px 0;
    }

    .nav-brand .logo {
        width: 160px;
    }

    /* Optimize translator section for mobile */
    .translator-section {
        padding: 1.5rem 0;
    }

    .translator-body {
        grid-template-columns: 1fr;
    }

    .input-area {
        border-right: none;
        border-bottom: 2px solid var(--background-gray);
    }

    /* Make translator controls more compact - KEEP HORIZONTAL */
    .translator-controls {
        flex-direction: row;
        padding: 0.75rem;
        gap: 0.5rem;
    }

    .language-select {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
    }

    .swap-button {
        width: 40px;
        height: 40px;
        flex-shrink: 0;
    }

    .swap-button:hover {
        transform: rotate(180deg);
    }

    /* Optimize textarea areas */
    .translator-textarea {
        min-height: 200px;
        padding: 1rem;
    }

    .textarea-header {
        padding: 0.5rem 0.75rem;
    }

    .nav-menu {
        gap: 1rem;
    }

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

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

    .social-links {
        flex-direction: column;
        align-items: center;
    }

    .social-link {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .navbar .container {
        flex-wrap: wrap;
    }

    .nav-brand {
        width: 89%;
        text-align: center;
        margin-bottom: 1rem;
    }

    .nav-menu {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    /* Extra compact for very small screens */
    .translator-controls {
        padding: 0.5rem;
        gap: 0.4rem;
    }

    .language-select {
        padding: 0.4rem 0.6rem;
        font-size: 0.85rem;
    }

    .swap-button {
        width: 36px;
        height: 36px;
    }

    .translator-textarea {
        min-height: 180px;
        font-size: 0.95rem;
    }
}

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

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease;
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Print Styles */
@media print {
    .navbar,
    .theme-toggle,
    .translator-controls,
    .copy-button,
    .clear-button,
    .footer {
        display: none;
    }
}

/* Custom Word Mappings Section */
.custom-words-section {
    margin-top: 2rem;
}

.custom-toggle-btn {
    width: 100%;
    padding: 1rem;
    background-color: var(--background-light);
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    transition: var(--transition);
}

.custom-toggle-btn:hover {
    border-color: var(--primary-color);
    background-color: var(--background-gray);
}

.custom-toggle-btn svg {
    color: var(--primary-color);
    flex-shrink: 0;
}

.custom-words-panel {
    margin-top: 1rem;
    padding: 1.5rem;
    background-color: var(--background-light);
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.panel-header h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.panel-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.add-mapping-form {
    background-color: var(--background-gray);
    padding: 1.5rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
}

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

.form-group:last-of-type {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.optional-hint {
    font-weight: 400;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-style: italic;
}

.mapping-input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    background-color: var(--background-light);
    color: var(--text-primary);
    transition: var(--transition);
}

.mapping-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.mapping-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

.add-mapping-btn {
    width: 100%;
    padding: 0.75rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.add-mapping-btn:hover {
    background-color: var(--secondary-color);
}

.examples-hint {
    background-color: #E3F2FD;
    color: #1565C0;
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid #1976D2;
}

.dark-theme .examples-hint {
    background-color: #1E3A5F;
    color: #90CAF9;
    border-left-color: #42A5F5;
}

.examples-hint code {
    background-color: rgba(0,0,0,0.1);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-weight: 600;
}

.custom-words-list {
    max-height: 400px;
    overflow-y: auto;
    margin-bottom: 1rem;
    padding: 0.5rem;
}

.custom-word-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    margin-bottom: 0.5rem;
    background-color: var(--background-gray);
    border-radius: 8px;
    border: 2px solid var(--border-color);
    transition: var(--transition);
}

.custom-word-item:hover {
    border-color: var(--primary-color);
}

.custom-word-item.exclusion {
    border-left: 4px solid #FF9800;
}

.custom-word-item.replacement {
    border-left: 4px solid #4CAF50;
}

.word-mapping {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
}

.original-word {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1.05rem;
    font-family: 'Courier New', monospace;
}

.arrow-icon {
    color: var(--text-secondary);
    flex-shrink: 0;
}

.replacement-text {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.05rem;
    font-family: 'Courier New', monospace;
}

.exclusion-badge {
    background-color: #FF9800;
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.remove-word-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: #f44336;
    transition: var(--transition);
    display: flex;
    align-items: center;
    border-radius: 4px;
}

.remove-word-btn:hover {
    background-color: rgba(244, 67, 54, 0.1);
    transform: scale(1.1);
}

.clear-mappings-btn {
    width: 100%;
    padding: 0.75rem;
    background-color: #f44336;
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.clear-mappings-btn:hover {
    background-color: #d32f2f;
}

@media (max-width: 768px) {
    .add-mapping-form {
        padding: 1rem;
    }

    .word-mapping {
        gap: 0.5rem;
    }

    .original-word,
    .replacement-text {
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    .custom-word-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .word-mapping {
        width: 100%;
    }

    .remove-word-btn {
        align-self: flex-end;
    }
}