/* Text to Speech Tool Styles */

/* Variables */
:root {
    --primary-color: #6c63ff;
    --primary-hover: #5a52d4;
    --secondary-color: #f8f9fa;
    --text-primary: #333;
    --text-secondary: #6c757d;
    --border-color: #dee2e6;
    --border-radius: 8px;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --input-bg: #fff;
    --hover-bg: #f8f9fa;
    --card-bg: #fff;
}

/* Base Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: #f5f5f5;
    margin: 0;
    padding: 0;
}

/* Header Styles */
.header {
    background-color: #fff;
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo a {
    text-decoration: none;
    display: flex;
    align-items: center;
    color: var(--text-primary);
}

.logo-text {
    font-weight: bold;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.logo-domain {
    font-size: 1rem;
    color: var(--text-secondary);
}

.nav {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
}

.nav-menu li a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu li a:hover {
    color: var(--primary-color);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-primary);
}

.nav-close {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-primary);
}

.menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

/* Main Content */
.main {
    padding: 2rem 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Tool Header */
.tool-header {
    text-align: center;
    margin-bottom: 2rem;
}

.tool-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.tool-header h1 {
    text-align: left;
    margin: 0 0 0.5rem;
    font-size: 2.5rem;
    color: var(--text-primary);
}

.tool-header p {
    margin: 0;
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* Text to Speech Container */
.text-to-speech-container {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Text Input Section */
.text-input-section {
    width: 100%;
}

.input-label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.text-input {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: inherit;
    line-height: 1.5;
    resize: vertical;
    min-height: 150px;
    transition: border-color 0.3s ease;
    box-sizing: border-box;
}

.text-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.text-stats {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
    text-align: right;
}

/* Settings Section */
.settings-section {
    width: 100%;
}

.settings-section h3 {
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: 1.2rem;
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.setting-group label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.voice-select {
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--input-bg);
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    transition: border-color 0.3s ease;
}

.voice-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.slider-container input[type="range"] {
    flex: 1;
    height: 6px;
    border-radius: 3px;
    background: var(--border-color);
    outline: none;
    -webkit-appearance: none;
}

.slider-container input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
}

.slider-container input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: none;
}

.slider-value {
    min-width: 45px;
    text-align: right;
    font-weight: 600;
    color: var(--primary-color);
}

/* Action Buttons */
.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.primary-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.primary-btn:hover:not(:disabled) {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(108, 99, 255, 0.3);
}

.secondary-btn {
    background-color: var(--secondary-color);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.secondary-btn:hover:not(:disabled) {
    background-color: var(--hover-bg);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.primary-btn:disabled,
.secondary-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.primary-btn.large,
.secondary-btn.large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* Audio Player */
.audio-player-container {
    width: 100%;
    display: flex;
    justify-content: center;
    margin-top: 1rem;
}

#audio-player {
    width: 100%;
    max-width: 800px;
    border-radius: var(--border-radius);
}

/* Tips Section */
.tips-section {
    background-color: var(--secondary-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
}

.tips-section h3 {
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
}

.tips-section ul {
    margin: 0;
    padding-left: 1.5rem;
}

.tips-section li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--box-shadow);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 99;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--primary-hover);
    transform: translateY(-3px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 0;
        right: -300px;
        width: 300px;
        height: 100vh;
        background-color: white;
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease;
        z-index: 1001;
        display: flex;
        flex-direction: column;
        padding: 1rem;
    }

    .nav.active {
        right: 0;
    }

    .nav-close {
        display: block;
        align-self: flex-end;
    }

    .nav-menu {
        flex-direction: column;
        gap: 1rem;
        margin-top: 2rem;
    }

    .menu-toggle {
        display: block;
    }

    .menu-overlay.active {
        display: block;
    }

    .tool-header h1 {
        font-size: 2rem;
    }

    .text-to-speech-container {
        padding: 1.5rem;
    }

    .settings-grid {
        grid-template-columns: 1fr;
    }

    .action-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .tool-header h1 {
        font-size: 1.8rem;
    }

    .tool-header p {
        font-size: 1rem;
    }

    .text-to-speech-container {
        padding: 1rem;
    }

    .action-buttons {
        gap: 0.75rem;
    }

    .primary-btn.large,
    .secondary-btn.large {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
}