/* General Styles */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background: #ffffff;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    color: #333;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Remove min-height on home page */
#home {
    min-height: auto;
    margin-bottom: 0;
}

/* Navigation Styles */
.nav-container {
    background: #ffffff;
    width: 100%;
    position: fixed;
    top: 0;
    z-index: 1000;
    border-bottom: 3px solid #6a0dad;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    box-sizing: border-box;
    height: 5vh;
    min-height: 50px;
}

.nav-header {
    max-width: none;
    margin: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    height: 100%;
    width: 100%;
}

.nav-brand {
    font-size: 20px;
    font-weight: bold;
    color: #6a0dad;
    letter-spacing: 2px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    flex-shrink: 0;
}

.nav-menu {
    display: flex;
    gap: 20px;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
}

.nav-btn {
    background: none;
    border: none;
    color: #6a0dad;
    padding: 8px 16px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    position: relative;
    border-radius: 5px;
}

.nav-btn:after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #6a0dad, #8a2be2);
    transition: width 0.3s ease;
}

.nav-btn:hover {
    color: #4b0082;
    background: none;
    transform: translateY(-2px);
}

.nav-btn:hover:after,
.nav-btn.active:after {
    width: 100%;
}

.nav-btn.active {
    color: #4b0082;
    background: none !important;
}

/* Mobile Navigation */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: #6a0dad;
    font-size: 24px;
    cursor: pointer;
    padding: 10px;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: #6a0dad;
    margin: 5px 0;
    transition: all 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile Menu Overlay */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.98);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-menu.active {
    opacity: 1;
}

.mobile-menu-content {
    position: absolute;
    right: 0;
    top: 80px;
    padding: 40px;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.mobile-menu .nav-btn {
    font-size: 20px;
    text-align: right;
}

/* Page Container */
.container {
    max-width: 900px;
    width: calc(100% - 60px);
    margin: 0 auto;
    padding: 0;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 5vh;
}

/* Hide container on home page */
#home .container {
    display: none;
}

/* Page Management */
.page {
    display: none;
    width: 100%;
    animation: fadeIn 0.3s ease-in-out;
    margin-bottom: 20px;
}

.page.active {
    display: block;
}

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

h1 {
    text-align: center;
    margin-bottom: 40px;
    margin-top: 60px;
    font-size: 2.8em;
    color: #6a0dad;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.2);
    text-transform: uppercase;
    letter-spacing: 3px;
}

/* Hide h1 on home page only */
#home h1 {
    display: none;
}
.hero-section {
    width: 100vw;
    height: 95vh;
    min-height: 400px;
    background-image: url('../images/hero-background.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
    margin-top: 0;
    padding-top: 0;
    box-sizing: border-box;
}

/* Background with blur effect */
.hero-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/hero-background.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    filter: blur(3px);
    z-index: 0;
}

/* Background Overlay */
.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(106, 13, 173, 0.15);
    z-index: 1;
}

.hero-content {
    text-align: center;
    z-index: 2;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    box-sizing: border-box;
}

.hero-logo {
    max-width: 270px;
    width: 70%;
    height: auto;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
    margin: 0;
}

#hero-section-2 {
    border-bottom: 2px solid #6a0dad;
}
#hero-section-2, #hero-section-2::after {
    background-image: url('../images/hero-background2.png');
}

.hero-btn {
    background: linear-gradient(135deg, #6a0dad 0%, #4b0082 100%);
    border: 3px solid #6a0dad;
    color: white;
    padding: 18px 40px;
    border-radius: 35px;
    cursor: pointer;
    font-size: 22px;
    font-weight: bold;
    transition: all 0.3s ease;
    text-decoration: none;
    box-shadow: 0 8px 25px rgba(0,0,0,0.3), inset 0 1px 2px rgba(255,255,255,0.1);
    font-family: inherit;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-btn:hover {
    background: linear-gradient(135deg, #8a2be2 0%, #6a0dad 100%);
    border-color: #8a2be2;
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.4), inset 0 1px 2px rgba(255,255,255,0.1);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.scroll-indicator:hover {
    opacity: 1;
}

.scroll-arrow {
    width: 0;
    height: 0;
    border-left: 12px solid transparent;
    border-right: 12px solid transparent;
    border-top: 16px solid #6a0dad;
    margin: 0 auto;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

/* Contact Form Styles */
.contact-form {
    background: linear-gradient(135deg, #fff 0%, #f8f8f8 100%);
    border: 3px solid #6a0dad;
    border-radius: 20px;
    padding: 30px;
    margin-top: 25px;
    width: 100%;
    box-sizing: border-box;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    position: relative;
    overflow: hidden;
}

.contact-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, 
        rgba(106, 13, 173, 0.05) 0%, 
        transparent 25%, 
        transparent 75%, 
        rgba(106, 13, 173, 0.05) 100%);
    pointer-events: none;
}

.form-group {
    margin-bottom: 25px;
    position: relative;
    z-index: 1;
}

/* NEW: Styles for form status messages */
#form-status {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 10px;
    text-align: center;
    font-weight: bold;
    display: none; /* Hidden by default */
}
#form-status.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}
#form-status.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}


.form-label {
    display: block;
    font-size: 1.1em;
    font-weight: bold;
    color: #333;
    margin-bottom: 8px;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    border: 3px solid #6a0dad;
    color: #333;
    padding: 14px 18px;
    border-radius: 15px;
    font-size: 16px;
    outline: none;
    transition: all 0.3s ease;
    font-weight: 500;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
    box-sizing: border-box;
    font-family: inherit;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    background: linear-gradient(135deg, #fff 0%, #f8f8f8 100%);
    border-color: #4b0082;
    box-shadow: 0 0 15px rgba(106, 13, 173, 0.4), inset 0 2px 4px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: #999;
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.submit-btn {
    background: linear-gradient(135deg, #6a0dad 0%, #4b0082 100%);
    border: 3px solid #6a0dad;
    color: white;
    padding: 16px 40px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    min-width: 180px;
    text-align: center;
    box-shadow: 0 6px 20px rgba(0,0,0,0.2), inset 0 1px 2px rgba(255,255,255,0.1);
    font-family: inherit;
}

.submit-btn:hover {
    background: linear-gradient(135deg, #8a2be2 0%, #6a0dad 100%);
    border-color: #8a2be2;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3), inset 0 1px 2px rgba(255,255,255,0.1);
}

.submit-btn:active {
    transform: translateY(-1px);
}

.form-footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 2px solid #e0e0e0;
    position: relative;
    z-index: 1;
}

.form-footer p {
    color: #666;
    font-size: 0.9em;
    margin: 0;
    line-height: 1.5;
}

/* Info Section */
.info-section {
    width: 100vw;
    min-height: 95vh;
    background: #f8f8f8;
    color: #333;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
    text-align: center;
    border-top: 2px solid #6a0dad;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    margin-bottom: 0;
    position: relative;
    padding: 50px 0;
}

.info-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 40px;
    width: 100%;
}

.info-title {
    color: #6a0dad;
    font-size: 2.5em;
    font-weight: bold;
    margin-bottom: 30px;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.2);
    margin-top: 0;
}

.info-text {
    font-size: 1.3em;
    line-height: 1.6;
    margin-bottom: 40px;
    color: #333;
}

.tool-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.tool-btn {
    background: linear-gradient(135deg, #6a0dad 0%, #4b0082 100%);
    border: 3px solid #6a0dad;
    color: white;
    padding: 18px 36px;
    border-radius: 35px;
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    min-width: 200px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.2), inset 0 1px 2px rgba(255,255,255,0.1);
    font-family: inherit;
}
.tool-btn:hover {
    background: linear-gradient(135deg, #8a2be2 0%, #6a0dad 100%);
    border-color: #8a2be2;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3), inset 0 1px 2px rgba(255,255,255,0.1);
}

/* Box Styles */
.tone-generator,
.settings-box {
    background: linear-gradient(135deg, #fff 0%, #f8f8f8 100%);
    border: 3px solid #6a0dad;
    border-radius: 20px;
    padding: 0; /* Remove padding for collapsible structure */
    margin-bottom: 25px;
    width: 100%;
    box-sizing: border-box;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    position: relative;
    overflow: hidden;
}

.tone-generator::before,
.settings-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, 
        rgba(106, 13, 173, 0.05) 0%, 
        transparent 25%, 
        transparent 75%, 
        rgba(106, 13, 173, 0.05) 100%);
    pointer-events: none;
}

/* Collapsible Styles */
.collapsible-header {
    padding: 20px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
    user-select: none;
    gap: 15px;
}

.collapsible-title {
    font-size: 1.4em;
    font-weight: bold;
    color: #333;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
    margin: 0;
    flex-grow: 1;
}

.chevron {
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    border: 3px solid #6a0dad;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    box-shadow: 0 3px 8px rgba(0,0,0,0.2), inset 0 1px 2px rgba(255,255,255,0.3);
    flex-shrink: 0;
}

.chevron:hover {
    background: linear-gradient(135deg, #6a0dad 0%, #4b0082 100%);
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3), inset 0 1px 2px rgba(255,255,255,0.3);
}

.chevron svg {
    width: 16px;
    height: 16px;
    stroke: #333;
    stroke-width: 3;
    transition: stroke 0.3s ease, transform 0.4s ease-out;
    transform: rotate(-180deg);
}

.chevron:hover svg {
    stroke: white;
}

.chevron.expanded svg {
    transform: rotate(0deg);
}

.collapsible-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out;
    position: relative;
    z-index: 1;
}

.collapsible-content.expanded {
    max-height: 1000px; /* Large value to accommodate content */
}

.content-inner {
    padding: 0 30px 30px;
    border-top: 1px solid #e0e0e0;
    margin-top: -1px;
}

/* Original Header Styles (Adapted) */
.generator-header-controls {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: flex-end;
    padding-top: 20px;
    width: 100%;
}

.toggle-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.settings-title {
    font-size: 1.4em;
    font-weight: bold;
    color: #333;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

.frequency-display-container {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.frequency-display {
    font-size: 1.1em;
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    border: 2px solid #6a0dad;
    padding: 10px 18px;
    border-radius: 25px;
    min-width: 90px;
    text-align: center;
    transition: all 0.4s ease;
    color: #333;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
    font-weight: 600;
    flex-grow: 1;
}

#drone-tuning-content .frequency-display {
     background: linear-gradient(135deg, #ccc 0%, #bbb 100%);
}
#drone-tuning-content .frequency-display.indicator-enabled {
     background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
}

.frequency-display.correct {
    background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%) !important;
    color: white;
    box-shadow: 0 0 15px rgba(76, 175, 80, 0.6), inset 0 2px 4px rgba(255,255,255,0.2);
    transform: scale(1.05);
}

.frequency-display.close {
    background: linear-gradient(135deg, #FF9800 0%, #e68900 100%) !important;
    color: white;
    box-shadow: 0 0 15px rgba(255, 152, 0, 0.6), inset 0 2px 4px rgba(255,255,255,0.2);
    transform: scale(1.02);
}

.frequency-display.far {
    background: linear-gradient(135deg, #F44336 0%, #da190b 100%) !important;
    color: white;
    box-shadow: 0 0 15px rgba(244, 67, 54, 0.6), inset 0 2px 4px rgba(255,255,255,0.2);
}

.frequency-display.hz-hidden {
    background: linear-gradient(135deg, #ccc 0%, #bbb 100%);
    color: transparent !important;
    user-select: none;
}

#score-display-drone, #streak-display-drone, #fc-score-display, #fc-streak-display {
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%) !important;
}


.controls {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
    padding-top: 20px;
}

.slider-container {
    flex: 1;
    position: relative;
    min-width: 200px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.slider-wrapper {
    flex: 1;
    position: relative;
}
.text-input-container {
    flex: 1;
    display: flex;
    align-items: center;
}

.freq-input {
    width: 100%;
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    border: 3px solid #6a0dad;
    color: #333;
    padding: 12px 18px;
    border-radius: 30px;
    font-size: 16px;
    text-align: center;
    outline: none;
    transition: all 0.3s ease;
    font-weight: 600;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

.freq-input:focus {
    background: linear-gradient(135deg, #fff 0%, #f8f8f8 100%);
    border-color: #4b0082;
    box-shadow: 0 0 15px rgba(106, 13, 173, 0.4), inset 0 2px 4px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}

.freq-input::placeholder {
    color: #999;
}

.slider {
    width: 100%;
    height: 10px;
    background: linear-gradient(135deg, #ddd 0%, #ccc 100%);
    border-radius: 8px;
    outline: none;
    cursor: pointer;
    transition: all 0.3s ease;
    -webkit-appearance: none;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

.slider:hover {
    background: linear-gradient(135deg, #e0e0e0 0%, #d0d0d0 100%);
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, #6a0dad 0%, #4b0082 100%);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 3px 8px rgba(0,0,0,0.3), inset 0 1px 2px rgba(255,255,255,0.3);
    transition: all 0.2s ease;
}

.slider::-webkit-slider-thumb:hover {
    background: linear-gradient(135deg, #8a2be2 0%, #6a0dad 100%);
    transform: scale(1.15);
    box-shadow: 0 4px 12px rgba(0,0,0,0.4), inset 0 1px 2px rgba(255,255,255,0.3);
}

.slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, #6a0dad 0%, #4b0082 100%);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: 0 3px 8px rgba(0,0,0,0.3);
}

.fine-tune-btn {
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    border: 3px solid #6a0dad;
    color: #333;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    box-shadow: 0 3px 8px rgba(0,0,0,0.2), inset 0 1px 2px rgba(255,255,255,0.3);
}

.fine-tune-btn:hover {
    background: linear-gradient(135deg, #6a0dad 0%, #4b0082 100%);
    color: white;
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3), inset 0 1px 2px rgba(255,255,255,0.3);
}
.fine-tune-btn:active {
    transform: translateY(0) scale(0.95);
}

.play-btn {
    background: linear-gradient(135deg, #f0f0f0 0%, #e0e0e0 100%);
    border: 3px solid #e0e0e0;
    color: #333;
    padding: 14px 24px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s ease;
    min-width: 90px;
    min-height: 52px;
    font-weight: bold;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2), inset 0 1px 2px rgba(0,0,0,0.1);
}

.play-btn:hover {
    background: linear-gradient(135deg, #e0e0e0 0%, #d0d0d0 100%);
    border-color: #d0d0d0;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3), inset 0 1px 2px rgba(0,0,0,0.1);
}

.play-btn.playing {
    background: linear-gradient(135deg, #ff6b6b 0%, #ff5252 100%);
    border-color: #ff5252;
    color: white;
    animation: pulse 2s infinite;
}

.btn-gold { /* Renamed in spirit to btn-purple */
    background: linear-gradient(135deg, #6a0dad 0%, #4b0082 100%);
    border-color: #6a0dad;
    color: white;
}
.btn-gold:hover {
    background: linear-gradient(135deg, #4b0082 0%, #3a0066 100%);
    border-color: #4b0082;
}


.play-btn.solve-individual {
    background: linear-gradient(135deg, #6a0dad 0%, #4b0082 100%);
    border-color: #6a0dad;
    min-width: 80px;
}

.play-btn.solve-individual:hover {
    background: linear-gradient(135deg, #4b0082 0%, #3a0066 100%);
    border-color: #4b0082;
}

.play-btn.solve-individual.restored {
    background: linear-gradient(135deg, #FF9800 0%, #e68900 100%);
    border-color: #FF9800;
}

.play-btn.solve-individual.restored:hover {
    background: linear-gradient(135deg, #e68900 0%, #d68400 100%);
    border-color: #e68900;
}

.play-btn.play-all-green:not(.playing) {
    background: linear-gradient(135deg, #6a0dad 0%, #4b0082 100%);
    border-color: #6a0dad;
}

.play-btn.play-all-green:not(.playing):hover {
    background: linear-gradient(135deg, #4b0082 0%, #3a0066 100%);
    border-color: #4b0082;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(255, 107, 107, 0.7); }
    70% { box-shadow: 0 0 0 15px rgba(255, 107, 107, 0); }
    100% { box-shadow: 0 0 0 0 rgba(255, 107, 107, 0); }
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 55px;
    height: 28px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #ccc 0%, #bbb 100%);
    transition: .4s;
    border-radius: 28px;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background: linear-gradient(135deg, white 0%, #f8f8f8 100%);
    transition: .4s;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.toggle-switch input:checked + .toggle-slider {
    background: linear-gradient(135deg, #6a0dad 0%, #4b0082 100%);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(27px);
}

.toggle-label {
    font-size: 0.9em;
    color: #666;
    font-weight: 600;
}

/* Segmented Control for Difficulty */
.segmented-control {
    display: flex;
    width: 100%;
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    border: 2px solid #6a0dad;
    border-radius: 30px;
    padding: 5px;
    box-sizing: border-box;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 25px;
}

.segmented-control input[type="radio"] {
    display: none;
}

.segmented-control label {
    flex: 1;
    text-align: center;
    padding: 12px 18px;
    cursor: pointer;
    color: #666;
    font-weight: bold;
    font-size: 16px;
    border-radius: 25px;
    transition: all 0.4s ease;
    user-select: none;
    position: relative;
}

.segmented-control label:hover {
    color: #333;
    background: rgba(106, 13, 173, 0.1);
}

.segmented-control input[type="radio"]:checked + label {
    background: linear-gradient(135deg, #6a0dad 0%, #4b0082 100%);
    color: white;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2), inset 0 1px 2px rgba(255,255,255,0.2);
    transform: translateY(-1px);
}

.tester-content-panel {
    display: none;
    width: 100%;
    animation: fadeIn 0.3s ease-in-out;
}
.tester-content-panel.active {
    display: block;
}

.action-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 20px;
    width: 100%;
}
.action-btn {
    background: linear-gradient(135deg, #f0f0f0 0%, #e0e0e0 100%);
    border: 3px solid #e0e0e0;
    color: #333;
    padding: 14px 24px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    transition: all 0.3s ease;
    min-width: 130px;
    min-height: 52px;
    text-align: center;
    box-sizing: border-box;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2), inset 0 1px 2px rgba(0,0,0,0.1);
}

.action-btn:hover {
    background: linear-gradient(135deg, #e0e0e0 0%, #d0d0d0 100%);
    border-color: #d0d0d0;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3), inset 0 1px 2px rgba(0,0,0,0.1);
}

.action-btn.randomise {
    background: linear-gradient(135deg, #f0f0f0 0%, #e0e0e0 100%);
    border-color: #e0e0e0;
}

.action-btn.randomise:hover {
    background: linear-gradient(135deg, #e0e0e0 0%, #d0d0d0 100%);
    border-color: #d0d0d0;
}

.action-btn.hz-toggle,
.action-btn.indicator {
    background: linear-gradient(135deg, #f0f0f0 0%, #e0e0e0 100%);
    border-color: #e0e0e0;
}

.action-btn.hz-toggle:hover,
.action-btn.indicator:hover {
    background: linear-gradient(135deg, #e0e0e0 0%, #d0d0d0 100%);
    border-color: #d0d0d0;
}

.action-btn.hz-toggle.hidden,
.action-btn.indicator.hidden {
    background: linear-gradient(135deg, #FF9800 0%, #e68900 100%);
    border-color: #FF9800;
}

.action-btn.hz-toggle.hidden:hover,
.action-btn.indicator.hidden:hover {
    background: linear-gradient(135deg, #e68900 0%, #d68400 100%);
    border-color: #e68900;
}

.action-btn.solve {
    background: linear-gradient(135deg, #6a0dad 0%, #4b0082 100%);
    border-color: #6a0dad;
    color: white;
}

.action-btn.solve:hover {
    background: linear-gradient(135deg, #4b0082 0%, #3a0066 100%);
    border-color: #4b0082;
}

.action-btn.solve.restored {
    background: linear-gradient(135deg, #FF9800 0%, #e68900 100%);
    border-color: #FF9800;
}

.action-btn.solve.restored:hover {
    background: linear-gradient(135deg, #e68900 0%, #d68400 100%);
    border-color: #e68900;
}

/* Submit button color states */
.action-btn.submit-correct {
    background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
    border-color: #4CAF50;
}
.action-btn.submit-close {
    background: linear-gradient(135deg, #FF9800 0%, #e68900 100%);
    border-color: #FF9800;
}
.action-btn.submit-incorrect {
    background: linear-gradient(135deg, #F44336 0%, #da190b 100%);
    border-color: #F44336;
}
.action-btn:disabled, button:disabled {
    cursor: not-allowed !important;
    opacity: 0.6 !important;
}

/* Keep result buttons fully visible when disabled */
.action-btn.submit-correct:disabled,
.action-btn.submit-close:disabled,
.action-btn.submit-incorrect:disabled,
.test-btn.correct:disabled,
.test-btn.incorrect:disabled {
    opacity: 1 !important;
}

.action-btn:disabled:hover, button:disabled:hover,
.btn-gold:disabled:hover, .play-btn:disabled:hover, .test-btn:disabled:hover {
    transform: none !important;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3), inset 0 1px 2px rgba(255,255,255,0.1) !important;
}


/* Settings Box Styles */
.settings-controls {
    display: flex;
    flex-direction: column;
    gap: 25px;
    align-items: stretch;
    width: 100%;
    position: relative;
    z-index: 1;
    padding-top: 20px;
}

.settings-row {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
    justify-content: center;
    width: 100%;
}

.settings-row.button-row {
    display: flex;
    width: 100%;
}

.settings-row.toggle-row {
    display: flex;
    flex-direction: row;
    gap: 18px;
    align-items: center;
    justify-content: space-between;
}

.difficulty-display {
    font-size: 1.1em;
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    border: 2px solid #6a0dad;
    padding: 14px 22px;
    border-radius: 30px;
    flex: 1;
    text-align: center;
    transition: all 0.3s ease;
    box-sizing: border-box;
    color: #333;
    font-weight: 600;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

/* Test Buttons */
.test-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin-top: 18px;
    width: 100%;
}
.test-btn {
    background: linear-gradient(135deg, #f0f0f0 0%, #e0e0e0 100%);
    border: 3px solid #e0e0e0;
    color: #333;
    padding: 14px 24px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    transition: all 0.3s ease;
    text-align: center;
    min-height: 52px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2), inset 0 1px 2px rgba(0,0,0,0.1);
}

.test-btn:hover {
    background: linear-gradient(135deg, #e0e0e0 0%, #d0d0d0 100%);
    border-color: #d0d0d0;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3), inset 0 1px 2px rgba(0,0,0,0.1);
}

.test-btn.correct {
    background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
    border-color: #4CAF50;
    color: white;
    animation: correctPulse 0.8s ease;
}

.test-btn.incorrect {
    background: linear-gradient(135deg, #F44336 0%, #da190b 100%);
    border-color: #F44336;
    color: white;
    animation: incorrectShake 0.6s ease;
}

@keyframes correctPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.08); }
    100% { transform: scale(1); }
}

@keyframes incorrectShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-8px); }
    75% { transform: translateX(8px); }
}

/* Vertical Controls Layout */
.controls-vertical {
    display: flex;
    flex-direction: column;
    gap: 18px;
    width: 100%;
    position: relative;
    z-index: 1;
    padding-top: 20px;
}
.controls-vertical button {
    width: 100%;
    min-height: 52px;
    padding: 14px 24px;
}

.controls-vertical .action-btn {
    width: 100%;
}

/* Stats Panel */
.stats-panel {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 2px solid #6a0dad;
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 25px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.stat-item {
    background: white;
    padding: 10px;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.stat-number {
    font-size: 1.5em;
    font-weight: bold;
    color: #6a0dad;
}

.stat-label {
    font-size: 0.9em;
    color: #666;
    margin-top: 5px;
}

/* Progress Bar */
.progress-container {
    background: #e0e0e0;
    border-radius: 15px;
    height: 8px;
    overflow: hidden;
    margin: 15px 0;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #6a0dad, #4b0082);
    width: 0%;
    transition: width 0.3s ease;
}

/* NEW STYLES FOR CHANTER TUNER */
.carousel-container {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}

.carousel-viewport {
    flex-grow: 1;
    width: 100%;
    overflow: hidden;
    position: relative;
    -webkit-mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
    mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
}

.carousel-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    padding: 20px 0;
    cursor: grab;
}
.carousel-track:active {
    cursor: grabbing;
}

.note-card {
    flex: 0 0 120px;
    height: 80px;
    margin: 0 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2em;
    font-weight: bold;
    color: #333;
    background: linear-gradient(135deg, #f9f9f9 0%, #e9e9e9 100%);
    border: 3px solid #ccc;
    border-radius: 15px;
    cursor: pointer;
    transition: all 0.5s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transform: scale(0.8);
    opacity: 0.6;
    user-select: none;
}

.note-card.active {
    transform: scale(1.1);
    opacity: 1;
    border-color: #8a2be2;
    box-shadow: 0 0 15px rgba(106, 13, 173, 0.4);
}

.note-card.correct {
    background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
    border-color: #4CAF50;
    color: white;
}

.note-card.close {
    background: linear-gradient(135deg, #FF9800 0%, #e68900 100%);
    border-color: #FF9800;
    color: white;
}

.note-card.far {
    background: linear-gradient(135deg, #F44336 0%, #da190b 100%);
    border-color: #F44336;
    color: white;
}

.carousel-arrow {
    flex-shrink: 0;
    background-color: rgba(106, 13, 173, 0.8);
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 24px;
    cursor: pointer;
    z-index: 10;
    margin: 0 15px;
}
.carousel-arrow:hover {
    background-color: #6a0dad;
}

.tuning-dial-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    margin-top: 20px;
}

.wheel-container {
    width: 200px;
    height: 200px;
    position: relative;
}

.wheel {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: linear-gradient(135deg, #e0e0e0, #cccccc);
    position: relative;
    cursor: grab;
    transform: rotate(var(--angle, 0deg));
    box-shadow: 0 8px 25px rgba(0,0,0,0.3), inset 0 0 15px rgba(0,0,0,0.2);
}

.wheel:active {
    cursor: grabbing;
}

.wheel-pointer {
    width: 8px;
    height: 25px;
    background-color: #6a0dad;
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 4px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.5);
}

/* --- NEW TOOL HUB STYLES --- */
#tool-selection-container {
    text-align: center;
    width: 100%;
}

#tool-selection-container h2 {
    font-size: 2.2em;
    color: #6a0dad;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.2);
    margin-bottom: 10px;
}

#tool-selection-container p {
    font-size: 1.1em;
    color: #555;
    margin-bottom: 40px;
}

.tool-selection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    width: 100%;
}

.tool-card {
    background: linear-gradient(145deg, #ffffff, #f0f0f0);
    border: 3px solid #ddd;
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    transition: all 0.3s ease-in-out;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    text-align: center;
}

.tool-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.2);
    border-color: #6a0dad;
}

.tool-card[data-target="chanter-tuning-content"] {
     border-color: #FFBF00; /* Amber */
}

.tool-card[data-target="chanter-tuning-content"]:hover {
     border-color: #FFBF00; /* Amber */
     box-shadow: 0 15px 40px rgba(255, 191, 0, 0.3);
}

.tool-card h3 {
    font-size: 1.6em;
    color: #6a0dad;
    margin-top: 0;
    margin-bottom: 8px;
}

.tool-card .difficulty-tag {
    display: none;
}

.tool-card .description {
    font-size: 1em;
    color: #555;
    line-height: 1.5;
    flex-grow: 1; /* Pushes the button to the bottom */
    margin-bottom: 20px;
}

.tool-card .action-button {
    background: linear-gradient(135deg, #6a0dad 0%, #4b0082 100%);
    border: none;
    color: white;
    padding: 12px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1em;
    font-weight: bold;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    align-self: center; /* Aligns button to the center */
}

.tool-card .action-button:hover {
    background: linear-gradient(135deg, #8a2be2 0%, #6a0dad 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

.back-btn {
    background: #6a0dad;
    border: 2px solid #6a0dad;
    color: white;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1em;
    font-weight: bold;
    transition: all 0.3s ease;
    margin-bottom: 25px;
    align-self: flex-start;
}

.back-btn:hover {
    background: #4b0082;
    color: white;
}

/* --- MODAL STYLES --- */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.6);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background-color: #fefefe;
    margin: 10% auto;
    padding: 30px 40px;
    border: 3px solid #6a0dad;
    border-radius: 20px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    text-align: left;
}

.modal-content .close-btn {
    background: linear-gradient(135deg, #6a0dad 0%, #4b0082 100%);
    border: none;
    color: white;
    padding: 12px 25px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1em;
    font-weight: bold;
    transition: all 0.3s ease;
    display: block;
    width: fit-content;
    margin: 30px auto 0;
    text-decoration: none;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.modal-content .close-btn:hover {
     background: linear-gradient(135deg, #8a2be2 0%, #6a0dad 100%);
     transform: translateY(-2px);
     box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

/* --- INSTRUCTIONS CONTENT STYLES --- */
.modal-content h3 {
    color: #6a0dad;
    margin-top: 0;
    font-size: 1.8em;
    text-align: center;
    margin-bottom: 20px;
}

.modal-content h4 {
    font-size: 1.3em;
    color: #4b0082;
    margin-top: 25px;
    margin-bottom: 10px;
    border-bottom: 2px solid #eee;
    padding-bottom: 5px;
}

.modal-content p, .modal-content li {
    font-size: 1em;
    line-height: 1.6;
    color: #555;
}

.modal-content strong {
    color: #333;
}

.modal-content code {
    background-color: #eee;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
    color: #6a0dad;
}

.modal-content ol, .modal-content ul {
    padding-left: 20px;
}

.modal-content ol li {
    margin-bottom: 12px;
}

.modal-content ul li {
    margin-bottom: 8px;
}

.tool-header-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin-bottom: 25px;
}

.tool-header-controls .back-btn {
    margin-bottom: 0;
}

.tool-header-controls .instructions-btn {
    background: none;
    border: 2px solid #6a0dad;
    color: #6a0dad;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1em;
    font-weight: bold;
    transition: all 0.3s ease;
}

.tool-header-controls .instructions-btn:hover {
    background: #6a0dad;
    color: white;
}


/* Mobile Optimizations */
@media (max-width: 768px) {
    body {
        padding: 0;
        width: 100%;
    }

    .hero-section, .hero-section::after {
        background-attachment: scroll;
    }
    
    .info-section {
        min-height: auto; /* Let content determine height on mobile */
        padding: 80px 0; /* Add more vertical space for mobile */
    }

    .nav-header {
        padding: 0 15px;
    }

    .nav-brand {
        font-size: 18px;
        letter-spacing: 1px;
    }

    .nav-menu {
        gap: 15px;
    }

    .nav-btn {
        padding: 6px 12px;
        font-size: 12px;
    }

    .nav-menu {
        display: none;
    }

    .nav-container {
        height: 5vh;
        min-height: 40px;
    }

    .nav-toggle {
        display: block;
    }

    .mobile-menu {
        display: block;
    }

    .container {
        margin: 100px 20px 0;
        padding: 0;
        width: calc(100% - 40px);
        max-width: 900px;
    }

    .hero-section {
        height: 95vh;
        min-height: 300px;
    }

    #home .hero-section:first-child {
        margin-top: -100px;
        padding-top: 100px;
    }

    .hero-logo {
        max-width: 250px;
        width: 70%;
        margin: 40px 0;
    }

    .hero-content {
        padding: 20px 10px;
    }

    .info-content {
        padding: 0 30px;
    }

    .info-text {
        font-size: 1.1em;
        margin-bottom: 30px;
    }

    .tool-buttons {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }

    .tool-btn {
        padding: 16px 32px;
        font-size: 16px;
        min-width: 180px;
    }

    .collapsible-header {
        padding: 15px 20px;
    }

    .content-inner {
        padding: 0 20px 20px;
    }

    .collapsible-title {
        font-size: 1.2em;
    }

    .controls {
        flex-direction: column;
        gap: 15px;
        align-items: stretch;
    }

    .slider-container {
        min-width: auto;
        width: 100%;
        order: 1;
    }

    .slider-wrapper {
        flex: 1;
    }

    .fine-tune-btn {
        width: 45px;
        height: 45px;
        font-size: 20px;
    }

    .play-btn, .play-btn.solve-individual {
        order: 2;
        min-width: auto;
        width: 100%;
        padding: 16px;
        font-size: 16px;
    }

    .text-input-container {
        width: 100%;
        order: 1;
    }

    .freq-input {
        font-size: 16px;
        padding: 14px 18px;
    }

    .action-buttons {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
        margin-top: 20px;
        max-width: none;
    }

    .action-btn {
        padding: 14px 18px;
        font-size: 16px;
        min-width: auto;
    }

    .frequency-display {
        padding: 8px 15px;
        font-size: 1em;
        min-width: 80px;
    }

    .toggle-label {
        font-size: 0.8em;
    }

    .toggle-switch {
        width: 50px;
        height: 25px;
    }

    .toggle-slider:before {
        height: 19px;
        width: 19px;
        left: 3px;
        bottom: 3px;
    }

    .toggle-switch input:checked + .toggle-slider:before {
        transform: translateX(25px);
    }

    .settings-title {
        text-align: center;
    }

    .settings-controls {
        gap: 18px;
        padding-top: 20px;
    }

    .settings-row {
        gap: 12px;
    }

    .settings-row.button-row {
        width: 100%;
    }

    .settings-row.toggle-row {
        gap: 12px;
    }

    .difficulty-display {
        padding: 12px 18px;
        font-size: 1em;
    }

    .segmented-control label {
        padding: 10px 14px;
        font-size: 16px;
    }

    .test-buttons {
        gap: 12px;
        margin-top: 12px;
    }

    .test-btn {
        padding: 12px 18px;
        font-size: 16px;
    }

    .scroll-indicator {
        bottom: 20px;
    }

    .scroll-arrow {
        border-left-width: 10px;
        border-right-width: 10px;
        border-top-width: 14px;
    }

    .score-displays {
        flex-direction: row !important;
        gap: 10px !important;
    }

    .performance-dot {
        width: 30px;
        height: 30px;
    }

    .performance-dots {
        margin-bottom: 15px;
    }

    .stat-item {
        padding: 8px;
    }

    .stat-number {
        font-size: 1.2em;
    }

    .carousel-arrow { 
        display: none;
    } 
    .carousel-viewport {
         -webkit-mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
         mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
    }
}

@media (max-width: 480px) {
    .generator-header-controls {
        flex-direction: row; /* Fix for mobile */
        align-items: center;
    }

    .action-btn {
        font-size: 16px;
        padding: 12px 15px;
    }

    .nav-brand {
        font-size: 24px;
    }

    .hero-section {
        height: 95vh;
        min-height: 250px;
    }

    .hero-logo {
        max-width: 200px;
        width: 60%;
        margin: 30px 0;
    }

    .info-content {
        padding: 0 20px;
    }

    .info-text {
        font-size: 1em;
    }

    .tool-btn {
        padding: 14px 28px;
        font-size: 16px;
        min-width: 160px;
    }
}