/* Modern ve Responsive Kullanıcı Arayüzü için CSS */
@import url('https://fonts.googleapis.com/css2?family=Rubik:wght@400;500;700&display=swap');

:root {
    --primary-color: #3a86ff;
    --primary-hover: #2a75ee;
    --secondary-color: #f5f7fb;
    --accent-color: #ff006e;
    --text-color: #333;
    --light-text: #666;
    --border-color: #e0e0e0;
    --success-color: #046c02;
    --error-color: #721c24;
    --container-shadow: 0 8px 30px rgba(0,0,0,0.08);
    --button-shadow: 0 4px 12px rgba(58,134,255,0.2);
    --header-color: #c7d6e0;
    --footer-color: #f2f6f9;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Rubik', sans-serif;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    margin: 0;
    background-color: #f9fafc;
    color: var(--text-color);
    line-height: 1.6;
}

/* Header Stilleri */
.site-header {
    background-color: var(--header-color);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 15px 0;
    width: 100%;
    text-align: center;
}

.logo a {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* Adım Navigasyon Stilleri */
.step-navigation {
    background-color: white;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    padding: 0;
    width: 100%;
}

.step-navigation ul {
    display: flex;
    justify-content: center;
    list-style: none;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0;
}

.step-item {
    flex: 1;
    position: relative;
}

.step-item span, .step-item a {
    display: block;
    padding: 15px 5px;
    color: var(--light-text);
    text-decoration: none;
    text-align: center;
    font-size: 14px;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
    cursor: default;
}

.step-item:after {
    content: "";
    position: absolute;
    top: 50%;
    right: 0;
    width: 1px;
    height: 60%;
    transform: translateY(-50%);
    background-color: var(--border-color);
}

.step-item:last-child:after {
    display: none;
}

.step-item.active span, .step-item.active a {
    color: var(--primary-color);
    font-weight: 500;
    border-bottom-color: var(--primary-color);
}

.step-item.completed span, .step-item.completed a {
    color: var(--success-color);
}

/* Ana İçerik Stilleri */
.main-content {
    flex: 1;
    display: flex;
    justify-content: center;
    padding: 30px 15px;
    background-color: #f9fafc;
}

.content-section {
    display: none;
    width: 100%;
    max-width: 800px;
}

.content-section.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

.content-container {
    background-color: #fff;
    padding: 30px 25px;
    border-radius: 16px;
    box-shadow: var(--container-shadow);
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

/* Header Stilleri */
.header {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 30px;
}

.header i {
    color: var(--primary-color);
    margin-bottom: 15px;
}

h2 {
    margin-bottom: 20px;
    font-weight: 700;
    color: var(--primary-color);
    font-size: 28px;
}

h3 {
    margin-bottom: 16px;
    font-weight: 500;
    color: var(--text-color);
    font-size: 22px;
}

p {
    margin-bottom: 24px;
    color: var(--light-text);
    font-size: 16px;
}

/* Form Öğeleri */
.form-group {
    margin-bottom: 25px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.radio-group {
    display: flex;
    gap: 20px;
}

.radio-option {
    display: flex;
    align-items: center;
}

.radio-option input[type="radio"] {
    margin-right: 8px;
}

input[type="number"] {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

input[type="number"]:focus {
    border-color: var(--primary-color);
    outline: none;
}

/* Form elemanları için ek stil */
input:invalid, 
input[type="radio"]:invalid {
    border-color: var(--border-color) !important;
    box-shadow: none !important;
    outline: none !important;
}

/* Talimat Listesi */
.instruction-list {
    text-align: left;
    margin: 30px 0;
}

.instruction-item {
    background-color: var(--secondary-color);
    padding: 16px;
    margin-bottom: 16px;
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
    transition: transform 0.3s ease;
    display: flex;
    align-items: flex-start;
}

.instruction-item:hover {
    transform: translateY(-3px);
}

.instruction-item i {
    color: var(--primary-color);
    margin-right: 15px;
    margin-top: 3px;
    min-width: 20px;
}

.instruction-item p {
    margin-bottom: 0;
    flex: 1;
}

/* Butonlar */
.navigation-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-top: 30px;
}

.primary-button, .secondary-button {
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 500;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--button-shadow);
    min-width: 180px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.primary-button i, .secondary-button i {
    margin-right: 8px;
}

.primary-button:hover, .secondary-button:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(58,134,255,0.3);
}

.primary-button:active, .secondary-button:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(58,134,255,0.2);
}

.secondary-button {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: none;
}

.secondary-button:hover {
    background-color: var(--secondary-color);
    color: var(--primary-hover);
    border-color: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* Test Talimatları Gösterim Alanı */
.test-explanation {
    background-color: var(--secondary-color);
    border-radius: 16px;
    padding: 20px;
    margin: 20px 0;
    text-align: left;
}

.info-box {
    background-color: white;
    border-left: 4px solid var(--primary-color);
    padding: 15px;
    margin-top: 15px;
    border-radius: 0 8px 8px 0;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

.info-box h3 {
    margin-bottom: 10px;
    color: var(--primary-color);
}

.info-box p {
    margin-bottom: 0;
}

/* Demo Test Alanı */
.demo-test-area {
    background-color: white;
    padding: 25px 20px;
    border-radius: 14px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    max-width: 500px;
    margin: 0 auto 25px;
}

.demo-input-area {
    max-width: 500px;
    margin: 0 auto;
    position: relative;
}

#demoUserInput {
    font-size: 28px;
    font-weight: 500;
    margin: 20px 0;
    height: 40px;
    min-height: 40px;
    border-bottom: 2px solid var(--border-color);
    padding: 10px 0;
    transition: border-color 0.3s ease;
    letter-spacing: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.demo-hint {
    margin-bottom: 15px;
    font-size: 14px;
    color: var(--light-text);
}

#demoKeyboard {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    max-width: 400px;
    margin: 0 auto;
    position: relative;
    height: auto;
    padding: 5px;
}

.demo-button {
    padding: 0;
    height: 70px;
    font-size: 24px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background-color: white;
    transition: all 0.2s ease;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-color);
}

.demo-button span {
    display: inline-block;
    transition: transform 0.1s ease;
}

.demo-button:hover:not(:disabled) span {
    transform: scale(1.1);
}

.demo-button:hover:not(:disabled) {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.08);
}

.demo-button:active:not(:disabled) {
    transform: translateY(1px);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.demo-button:disabled {
    background-color: #f5f5f5;
    color: #ccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Demo silme butonu için özel stiller */
.demo-backspace {
    color: var(--light-text);
}

.demo-backspace:hover:not(:disabled) {
    color: var(--text-color);
}

/* Test Kuralları */
.test-rules {
    background-color: var(--secondary-color);
    border-radius: 16px;
    padding: 20px;
    margin: 20px 0;
    text-align: left;
}

.test-rules ul {
    margin: 0;
    padding-left: 20px;
}

.test-rules li {
    margin-bottom: 8px;
    line-height: 1.4;
}

.test-rules li:last-child {
    margin-bottom: 0;
}

/* Test Ekranı */
.status-counter {
    padding: 5px 15px;
    border-radius: 8px;
    margin-bottom: 15px;
    text-align: center;
}

#testStatus {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
}

.test-container {
    background-color: white;
    padding: 22px 18px;
    border-radius: 14px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    max-width: 500px;
    margin: 0 auto 25px;
}

/* Test Klavyesi ve Giriş Alanı */
#inputArea {
    margin: 20px auto;
    max-width: 500px;
    position: relative;
}

#userInput {
    font-size: 28px;
    font-weight: 500;
    margin-bottom: 30px;
    height: 40px;
    min-height: 40px;
    border-bottom: 2px solid var(--border-color);
    padding: 10px 0;
    transition: border-color 0.3s ease;
    letter-spacing: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

#userInput:focus {
    border-color: var(--primary-color);
}

#keyboard {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    max-width: 400px;
    margin: 0 auto;
    position: relative;
    height: auto;
    padding: 5px;
}

#keyboard button {
    padding: 0;
    height: 70px;
    font-size: 24px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background-color: white;
    transition: all 0.2s ease;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-color);
}

#keyboard button span {
    display: inline-block;
    transition: transform 0.1s ease;
}

#keyboard button:hover:not(:disabled) span {
    transform: scale(1.1);
}

#keyboard button:hover:not(:disabled) {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.08);
}

#keyboard button:active:not(:disabled) {
    transform: translateY(1px);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

#keyboard button:disabled {
    background-color: #f5f5f5;
    color: #ccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

#startButton {
    grid-column: span 3;
    background-color: var(--primary-color);
    color: white;
    border: none;
    font-size: 22px;
    font-weight: 700;
    box-shadow: var(--button-shadow);
    height: 70px;
    transition: all 0.3s ease;
    border-radius: 12px;
    margin-top: 10px;
    position: relative;
    overflow: hidden;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-transform: uppercase;
    border: none;
}

#startButton:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(255,255,255,0.2), rgba(255,255,255,0));
    pointer-events: none;
    border-radius: 10px;
}

#startButton .start-text {
    color: white !important;
    font-size: 22px;
    letter-spacing: 1px;
    font-weight: 800;
    display: inline-block;
    margin-left: 10px;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.4);
    position: relative;
    z-index: 10;
}

#startButton:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(58,134,255,0.3);
}

#startButton:active {
    background-color: var(--primary-hover);
    transform: translateY(1px);
    box-shadow: 0 2px 8px rgba(58,134,255,0.2);
}

#startButton i {
    margin-right: 0;
    font-size: 22px;
    color: white !important;
    position: relative;
    z-index: 10;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.4);
}

/* İşitme Durumu */
.hearing-status {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 500;
    margin-top: 10px;
}

.status-pass {
    background-color: #d4edda;
    color: #721c24;
}

.status-fail {
    background-color: #f8d7da;
    color: #721c24;
}

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

.clear-btn:hover:not(:disabled) {
    color: var(--text-color);
}

#finalResults {
    margin-top: 30px;
    background-color: var(--secondary-color);
    padding: 20px;
    border-radius: 10px;
    text-align: left;
    max-height: 400px;
    overflow-y: auto;
}

#finalResults table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

#finalResults table th, #finalResults table td {
    padding: 8px;
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}

#finalResults table th {
    background-color: var(--primary-color);
    color: white;
}

.result-summary {
    background-color: white;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
}

#progressContainer {
    width: 100%;
    height: 12px;
    background-color: #e5e5e5;
    border-radius: 8px;
    margin-bottom: 25px;
    overflow: hidden;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.1);
}

#progressBar {
    height: 100%;
    background-color: var(--primary-color);
    width: 0%;
    transition: width 0.3s ease;
    background-image: linear-gradient(45deg, 
                      rgba(255,255,255,.15) 25%, 
                      transparent 25%, 
                      transparent 50%, 
                      rgba(255,255,255,.15) 50%, 
                      rgba(255,255,255,.15) 75%, 
                      transparent 75%, 
                      transparent);
    background-size: 1rem 1rem;
    animation: progress-bar-stripes 1s linear infinite;
}

@keyframes progress-bar-stripes {
    from {
        background-position: 1rem 0;
    }
    to {
        background-position: 0 0;
    }
}

.volume-icon {
    margin: 40px 0;
    text-align: center;
    color: var(--primary-color);
}

/* Footer */
.site-footer {
    background-color: var(--footer-color);
    padding: 20px 0;
    text-align: center;
    margin-top: auto;
}

.footer-content p {
    margin: 0;
    font-size: 14px;
    color: var(--light-text);
}

/* Animasyonlar */
@keyframes fadeIn {
    0% {opacity: 0;}
    100% {opacity: 1;}
}

@keyframes pulse {
    0% {transform: scale(1);}
    50% {transform: scale(1.1);}
    100% {transform: scale(1);}
}

.pulse {
    animation: pulse 1.5s infinite ease-in-out;
}

/* Responsive Tasarım */
@media (max-width: 768px) {
    .content-container {
        padding: 25px 15px; 
        border-radius: 12px;
    }
    
    .test-container, .demo-test-area {
        padding: 20px 15px;
        margin-bottom: 20px;
    }
    
    h2 {
        font-size: 22px;
        margin-bottom: 15px;
    }
    
    #testStatus {
        font-size: 20px;
    }
    
    .navigation-buttons {
        flex-direction: column;
        gap: 10px;
    }
    
    .primary-button, .secondary-button {
        width: 100%;
        padding: 12px 15px;
    }
    
    .step-item span, .step-item a {
        font-size: 11px;
        padding: 10px 3px;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: 20px 10px;
    }
    
    .content-container {
        padding: 20px 12px;
        border-radius: 10px;
    }
    
    .test-container, .demo-test-area {
        padding: 15px 10px;
    }
    
    #keyboard, #demoKeyboard {
        gap: 8px;
    }
    
    #keyboard button, .demo-button {
        height: 55px;
        font-size: 20px;
    }
    
    #startButton, #demoStartButton {
        font-size: 18px;
        height: 60px;
    }
    
    #testStatus {
        font-size: 18px;
    }
    
    .step-navigation {
        overflow-x: auto;
    }
    
    .step-navigation ul {
        width: 100%;
        min-width: 480px;
    }
    
    #finalResults {
        font-size: 14px;
    }
    
    #finalResults table {
        font-size: 12px;
    }
}

/* Demo ile ilgili ek stiller */
.demo-start:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.demo-start:disabled.demo-completed {
    background-color: var(--success-color);
}

/* Demo silme butonu için özel stiller */
.demo-backspace {
    background-color: #f8f9fa !important;
    color: #495057 !important;
    border: 1px solid #ced4da !important;
}

.demo-backspace:hover:not(:disabled) {
    background-color: #e9ecef !important;
    color: #212529 !important;
}