/* Genel Stiller */
:root {
    --bg-color: #f5f5f5;
    --text-color: #333;
    --card-bg: white;
    --heading-color: #2c3e50;
    --secondary-heading: #34495e;
    --border-color: #ddd;
    --hover-bg: #e9ecef;
    --button-bg: #43b581;
    --button-hover: #37996b;
    --underweight-color: #2e86ab;
    --normal-color: #43b581;
    --overweight-color: #f4b942;
    --obese-color: #e74c3c;
}

[data-theme="dark"] {
    --bg-color: #424242;
    --text-color: #ffffff;
    --card-bg: #525252;
    --heading-color: #ffffff;
    --secondary-heading: #e0e0e0;
    --border-color: #616161;
    --hover-bg: #616161;
    --link-color: #90caf9;
    --button-bg: #43b581;
    --button-hover: #37996b;
    --input-bg: #616161;
    --input-text: #ffffff;
    --input-placeholder: #bdbdbd;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

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

h1 {
    color: var(--heading-color);
    text-align: center;
    margin: 20px 0;
    font-size: 2.5em;
}

h2 {
    color: var(--secondary-heading);
    margin: 15px 0;
    font-size: 1.8em;
}

/* Ana Sayfa Butonları */
.buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-width: 600px;
    margin: 30px auto;
}

button {
    padding: 15px 25px;
    font-size: 1.2em;
    border: none;
    border-radius: 8px;
    background-color: var(--button-bg);
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

button:hover {
    background-color: var(--button-hover);
    transform: translateY(-2px);
}

/* İdeal Kilo Hesaplama Sayfası */
form {
    max-width: 400px;
    margin: 30px auto;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

input {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1.1em;
    background-color: var(--card-bg);
    color: var(--text-color);
}

#sonuc {
    text-align: center;
    margin: 20px;
    padding: 15px;
    font-size: 1.2em;
    background: #e8f4f8;
    border-radius: 5px;
}

/* Sağlıklı Tüyolar Sayfası */
.tip-section {
    background: var(--card-bg);
    margin: 20px 0;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.tip-section ul {
    list-style-position: inside;
    margin: 15px 0;
}

.tip-section li {
    margin: 10px 0;
    padding-left: 20px;
}

/* Spor Planları Sayfası */
.workout-section {
    background: var(--card-bg);
    margin: 25px 0;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.workout-plan {
    margin: 15px 0;
}

.workout-plan h3 {
    color: #e74c3c;
    margin: 10px 0;
}

.workout-plan ul {
    list-style-position: inside;
    margin: 15px 0;
}

.workout-plan li {
    margin: 8px 0;
}

.tips {
    background: #f9e4b7;
    padding: 20px;
    border-radius: 10px;
    margin: 30px 0;
}

.back-button {
    display: block;
    margin: 30px auto;
    background-color: #2ecc71;
}

.back-button:hover {
    background-color: #27ae60;
}

/* Sağlıklı Tüyolar Sayfası - Yeni Stiller */
.content-with-links {
    padding: 10px 0;
}

.content-with-links h3 {
    color: #2c3e50;
    margin: 20px 0 15px 0;
    font-size: 1.4em;
}

.content-with-links ul {
    list-style: none;
}

.content-with-links li {
    margin: 20px 0;
    padding: 15px;
    background: var(--card-bg);
    border-radius: 8px;
    transition: all 0.3s ease;
    color: var(--text-color);
}

.content-with-links li:hover {
    background: var(--hover-bg);
    transform: translateX(5px);
}

.content-with-links strong {
    color: #e74c3c;
    display: block;
    margin-bottom: 8px;
    font-size: 1.1em;
}

.content-with-links p {
    margin: 10px 0;
    line-height: 1.6;
}

.content-with-links a {
    color: #3498db;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
}

.content-with-links a:hover {
    color: #2980b9;
    border-bottom-color: #2980b9;
}

/* Spor Planları Sayfası - Yeni Stiller */
.workout-planner {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.planner-section {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 20px;
    margin: 20px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.planner-section h2 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 1.5em;
}

/* Süre ve Seviye Seçici */
.duration-selector,
.level-selector {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.duration-btn,
.level-btn {
    flex: 1;
    min-width: 100px;
    padding: 10px;
    border: 2px solid #3498db;
    background: white;
    color: #3498db;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.duration-btn:hover,
.level-btn:hover {
    background: #3498db;
    color: white;
    transform: translateY(-2px);
}

.duration-btn.selected,
.level-btn.selected {
    background: #3498db;
    color: white;
    transform: scale(1.05);
}

/* Egzersiz Seçici */
.exercise-selector {
    display: grid;
    gap: 20px;
}

.exercise-category {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
}

.exercise-category h3 {
    color: #e74c3c;
    margin-bottom: 15px;
}

.exercise-list {
    display: grid;
    gap: 10px;
}

.exercise-item {
    display: flex;
    align-items: center;
    padding: 10px;
    background: white;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.exercise-item:hover {
    transform: translateX(5px);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.exercise-item input[type="checkbox"] {
    margin-right: 10px;
    width: 18px;
    height: 18px;
}

.exercise-item label {
    cursor: pointer;
    flex: 1;
}

/* Seçilen Egzersizler */
.selected-exercises {
    margin: 20px 0;
}

.selected-exercise-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 5px;
    margin: 5px 0;
}

.selected-exercise-item button {
    background: #e74c3c;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 3px;
    cursor: pointer;
}

.selected-exercise-item button:hover {
    background: #c0392b;
}

/* Egzersiz Detayları */
.exercise-details {
    margin-top: 30px;
}

.exercise-details.hidden {
    display: none;
}

.exercise-detail {
    background: white;
    padding: 20px;
    border-radius: 10px;
    margin: 20px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.exercise-detail h3 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.exercise-media {
    margin: 15px 0;
    text-align: center;
}

.exercise-media img {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.detail-btn {
    width: 100%;
    padding: 15px;
    background: #2ecc71;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.detail-btn:hover {
    background: #27ae60;
}

.detail-btn:disabled {
    background: #bdc3c7;
    cursor: not-allowed;
}

.info-text {
    color: #7f8c8d;
    margin-bottom: 15px;
    font-style: italic;
}

/* Responsive Tasarım */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    h1 {
        font-size: 2em;
    }

    h2 {
        font-size: 1.5em;
    }

    .buttons {
        padding: 0 10px;
    }

    button {
        padding: 12px 20px;
        font-size: 1.1em;
    }

    .workout-section, .tip-section {
        padding: 15px;
    }

    .workout-planner {
        padding: 10px;
    }

    .duration-selector,
    .level-selector {
        flex-direction: column;
    }

    .duration-btn,
    .level-btn {
        width: 100%;
    }

    .exercise-detail {
        padding: 15px;
    }
}

@media (min-width: 768px) {
    .buttons {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }

    .buttons button {
        flex: 1;
        min-width: 250px;
    }
}

/* Su Tüketimi Hesaplayıcı Sayfası */
.calculator-section {
    max-width: 600px;
    margin: 30px auto;
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 0 15px rgba(0,0,0,0.1);
}

.calculator-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    color: #2c3e50;
}

.form-group input,
.form-group select {
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1.1em;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    border-color: #3498db;
    outline: none;
    box-shadow: 0 0 5px rgba(52, 152, 219, 0.3);
}

.result-section {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 2px dashed #e0e0e0;
}

.water-info {
    text-align: center;
}

.water-info.hidden {
    display: none;
}

.water-amount {
    font-size: 3em;
    color: #3498db;
    margin: 20px 0;
}

.water-amount .unit {
    font-size: 0.5em;
    color: #7f8c8d;
}

.water-visual {
    margin: 20px 0;
}

.bottle {
    font-size: 2em;
    margin: 0 5px;
}

.tips {
    background: #f7f9fc;
    padding: 20px;
    border-radius: 8px;
    margin-top: 30px;
}

.tips h3 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.tips ul {
    list-style: none;
    padding: 0;
}

.tips li {
    margin: 10px 0;
    padding: 10px;
    background: white;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

/* Timer Bölümü */
.timer-section {
    background: white;
    padding: 20px;
    border-radius: 10px;
    margin: 20px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    text-align: center;
}

.timer-section.hidden {
    display: none;
}

.timer-display {
    font-size: 4em;
    font-weight: bold;
    color: #2c3e50;
    margin: 20px 0;
    font-family: monospace;
}

.timer-controls {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin: 20px 0;
}

.timer-btn {
    padding: 10px 20px;
    font-size: 1.1em;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.timer-btn:disabled {
    background: #bdc3c7;
    cursor: not-allowed;
}

#startTimer {
    background: #2ecc71;
    color: white;
}

#startTimer:hover:not(:disabled) {
    background: #27ae60;
}

#pauseTimer {
    background: #f1c40f;
    color: white;
}

#pauseTimer:hover:not(:disabled) {
    background: #f39c12;
}

#resetTimer {
    background: #e74c3c;
    color: white;
}

#resetTimer:hover:not(:disabled) {
    background: #c0392b;
}

#nextExercise {
    background: #3498db;
    color: white;
    width: 100%;
    margin-top: 20px;
}

#nextExercise:hover:not(:disabled) {
    background: #2980b9;
}

.current-exercise {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    margin: 20px 0;
}

.current-exercise h3 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.current-exercise p {
    margin: 5px 0;
    font-size: 1.1em;
}

#currentExerciseName {
    color: #e74c3c;
    font-weight: bold;
}

#currentExerciseTime {
    color: #7f8c8d;
}

/* İdeal Kilo Hesaplayıcı Sayfası - Özel Stiller */
.calculate-btn {
    width: 100%;
    padding: 15px;
    background: var(--button-bg);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.2em;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 20px;
}

.calculate-btn:hover {
    background: var(--button-hover);
    transform: translateY(-2px);
}

.result-section {
    margin-top: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
    border-left: 5px solid #3498db;
}

.result-section.hidden {
    display: none;
}

.bmi-display {
    text-align: center;
    margin: 20px 0;
}

#bmiValue {
    font-size: 4em;
    font-weight: bold;
    color: #2c3e50;
    display: block;
}

.bmi-label {
    font-size: 1.5em;
    color: #7f8c8d;
    margin-left: 10px;
}

.bmi-category {
    text-align: center;
    margin: 20px 0;
}

#bmiComment {
    font-size: 1.3em;
    color: #2c3e50;
    margin-bottom: 20px;
    font-weight: 600;
}

.bmi-scale {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin: 20px 0;
}

.scale-item {
    flex: 1;
    padding: 10px;
    border-radius: 8px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.scale-item span {
    display: block;
    font-size: 0.9em;
    margin: 2px 0;
}

.scale-item.underweight {
    background: #e8f4f8;
    color: #3498db;
}

.scale-item.normal {
    background: #e8f8f5;
    color: #27ae60;
}

.scale-item.overweight {
    background: #fef9e7;
    color: #f39c12;
}

.scale-item.obese {
    background: #fdf2f2;
    color: #e74c3c;
}

.scale-item.active {
    transform: scale(1.05);
    border-color: #2c3e50;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.recommendations {
    margin-top: 30px;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.recommendations h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.3em;
}

.recommendations ul {
    list-style: none;
    padding: 0;
}

.recommendations li {
    padding: 10px 0;
    border-bottom: 1px solid #ecf0f1;
    position: relative;
    padding-left: 25px;
}

.recommendations li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #27ae60;
    font-weight: bold;
    font-size: 1.2em;
}

.recommendations li:last-child {
    border-bottom: none;
}

/* Responsive Tasarım */
@media (max-width: 768px) {
    .bmi-scale {
        flex-direction: column;
        gap: 5px;
    }
    
    .scale-item {
        padding: 8px;
    }
    
    #bmiValue {
        font-size: 3em;
    }
    
    .bmi-label {
        font-size: 1.2em;
    }
}

/* Copyright Footer */
.copyright-footer {
    text-align: center;
    padding: 20px;
    color: #666;
    font-size: 0.9em;
    margin-top: 40px;
}

@media (max-width: 768px) {
    .copyright-footer {
        font-size: 0.8em;
        padding: 15px;
    }
}

/* Tema Değiştirici */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 10px 20px;
    border-radius: 20px;
    cursor: pointer;
    background-color: var(--card-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
    z-index: 1000;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.theme-toggle span {
    font-size: 1.2em;
}

/* Dark tema için özel düzenlemeler */
[data-theme="dark"] button {
    background-color: var(--button-bg);
    color: white;
}

[data-theme="dark"] button:hover {
    background-color: var(--button-hover);
}

[data-theme="dark"] input,
[data-theme="dark"] select {
    background-color: var(--input-bg);
    color: var(--input-text);
    border-color: var(--border-color);
}

[data-theme="dark"] input::placeholder {
    color: var(--input-placeholder);
}

[data-theme="dark"] .content-with-links a {
    color: var(--link-color);
}

[data-theme="dark"] .content-with-links strong {
    color: #ff9800;
}

[data-theme="dark"] .exercise-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .exercise-item label {
    color: var(--text-color);
}

[data-theme="dark"] .tips {
    background-color: #4a4a4a;
    color: var(--text-color);
}

[data-theme="dark"] .timer-display {
    color: var(--text-color);
}

[data-theme="dark"] .current-exercise {
    color: var(--text-color);
}

[data-theme="dark"] #bmiValue,
[data-theme="dark"] .bmi-label,
[data-theme="dark"] #bmiComment {
    color: var(--text-color);
}

[data-theme="dark"] .water-amount {
    color: var(--text-color);
}

[data-theme="dark"] .copyright-footer {
    color: #bdbdbd;
}

/* Tema değiştirici butonunu güncelle */
[data-theme="dark"] .theme-toggle {
    background-color: #616161;
    border-color: #757575;
    color: white;
}

[data-theme="dark"] .theme-toggle:hover {
    background-color: #757575;
}

[data-theme="dark"] .workout-plan h3,
[data-theme="dark"] .content-with-links h3,
[data-theme="dark"] .exercise-category h3,
[data-theme="dark"] .exercise-detail h3,
[data-theme="dark"] .planner-section h2,
[data-theme="dark"] .recommendations h3 {
    color: #ffeb3b;
}

[data-theme="dark"] .recommendations li:before {
    color: #4caf50;
}

[data-theme="dark"] #currentExerciseName {
    color: #ff9800;
}

[data-theme="dark"] #currentExerciseTime,
[data-theme="dark"] .bmi-label {
    color: #bdbdbd;
}

[data-theme="dark"] .scale-item.underweight {
    color: #90caf9;
}
[data-theme="dark"] .scale-item.normal {
    color: #81c784;
}
[data-theme="dark"] .scale-item.overweight {
    color: #ffd54f;
}
[data-theme="dark"] .scale-item.obese {
    color: #ff8a65;
}

/* Modern ana sayfa arka planı */
.modern-bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    background: linear-gradient(135deg, #e0f7fa 0%, #fffde4 100%);
    min-height: 100vh;
}
[data-theme="dark"] .modern-bg {
    background: linear-gradient(135deg, #232526 0%, #414345 100%);
}

.home-card {
    background: var(--card-bg);
    border-radius: 24px;
    box-shadow: 0 8px 32px rgba(44,62,80,0.10);
    padding: 40px 32px 24px 32px;
    margin-top: 48px;
    margin-bottom: 48px;
    max-width: 480px;
}

.logo-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    margin-bottom: 32px;
}
.logo-area svg {
    box-shadow: 0 4px 16px rgba(76,175,80,0.10);
    border-radius: 50%;
}
.welcome-text {
    color: var(--secondary-heading);
    font-size: 1.1em;
    text-align: center;
    margin-top: 0;
    margin-bottom: 0;
}
[data-theme="dark"] .welcome-text {
    color: #e0e0e0;
}

.home-card .buttons {
    background: var(--card-bg);
    border-radius: 16px;
    box-shadow: 0 2px 12px rgba(44,62,80,0.06);
    padding: 24px 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 32px;
}
.home-card .buttons button {
    font-size: 1.15em;
    padding: 16px 0;
    border-radius: 10px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.minimal-footer {
    text-align: center;
    color: #bdbdbd;
    font-size: 0.95em;
    margin-top: 16px;
    margin-bottom: 0;
    background: none;
    box-shadow: none;
    padding: 12px 0 0 0;
}
[data-theme="dark"] .minimal-footer {
    color: #757575;
}

@media (max-width: 600px) {
    .container {
        width: 98vw;
        max-width: none;
        padding: 0;
        margin: 0 auto;
    }
    .home-card {
        width: 98vw;
        max-width: none;
        padding: 8px 2vw 8px 2vw;
        margin: 6px 0;
        border-radius: 10px;
        box-sizing: border-box;
    }
    .logo-area h1 {
        font-size: 1.25em;
    }
    .welcome-text {
        font-size: 1.08em;
    }
    .home-card .buttons button {
        font-size: 1.08em;
        padding: 15px 0;
    }
}

@media (max-width: 400px) {
    .logo-area h1 {
        font-size: 0.98em;
    }
    .home-card .buttons button {
        font-size: 0.95em;
        padding: 11px 0;
    }
}

.btn-icon {
    font-size: 1.3em;
    margin-right: 0.6em;
    vertical-align: middle;
    display: inline-block;
}

@media (max-width: 480px) {
    .container {
        padding: 4vw 2vw;
        max-width: 100vw;
    }
    .home-card {
        padding: 10px 2vw 8px 2vw;
        margin-top: 8px;
        margin-bottom: 8px;
        max-width: 100vw;
    }
    .logo-area {
        gap: 6px;
        margin-bottom: 12px;
    }
    .logo-area svg {
        width: 48px;
        height: 48px;
    }
    h1 {
        font-size: 1.3em;
        margin: 12px 0;
    }
    h2 {
        font-size: 1.1em;
        margin: 10px 0;
    }
    .buttons, .home-card .buttons {
        gap: 8px;
        padding: 4px 0;
    }
    .home-card .buttons button, .buttons button, .calculate-btn, .detail-btn, .timer-btn, .back-button {
        font-size: 1em;
        padding: 12px 0;
        border-radius: 8px;
    }
    .calculator-section, .workout-planner, .tip-section, .result-section, .planner-section {
        padding: 10px 4vw;
        margin: 10px 0;
        border-radius: 10px;
        box-shadow: 0 2px 8px rgba(44,62,80,0.06);
    }
    .content-with-links li, .tips li, .recommendations, .selected-exercise-item, .exercise-item, .exercise-detail {
        padding: 10px 4vw;
        font-size: 0.98em;
    }
    .bmi-scale {
        flex-direction: column;
        gap: 4px;
    }
    .scale-item {
        padding: 6px;
        font-size: 0.95em;
    }
    .copyright-footer, .minimal-footer {
        font-size: 0.8em;
        padding: 8px 0 0 0;
    }
    .form-group label {
        font-size: 1em;
    }
    .form-group input, .form-group select {
        font-size: 1em;
        padding: 10px;
        border-radius: 6px;
    }
    .water-amount {
        font-size: 2em;
    }
    .theme-toggle {
        top: 8px;
        right: 8px;
        padding: 6px 12px;
        font-size: 0.95em;
    }
}

[data-theme="dark"] .result-section {
    background: #23272e;
    border-left: 5px solid #42a5f5;
    color: #e3f2fd;
}
[data-theme="dark"] .bmi-scale {
    background: #23272e;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(33,150,243,0.08);
}
[data-theme="dark"] .scale-item.underweight {
    background: #263238;
    color: #4fc3f7;
}
[data-theme="dark"] .scale-item.normal {
    background: #1b5e20;
    color: #b9f6ca;
}
[data-theme="dark"] .scale-item.overweight {
    background: #ff8f00;
    color: #fffde7;
}
[data-theme="dark"] .scale-item.obese {
    background: #b71c1c;
    color: #ffcccb;
}
[data-theme="dark"] .scale-item.active {
    border-color: #42a5f5;
    box-shadow: 0 4px 12px rgba(66,165,245,0.15);
}
[data-theme="dark"] .recommendations {
    background: #263238;
    color: #e3f2fd;
    box-shadow: 0 2px 8px rgba(33,150,243,0.08);
}
[data-theme="dark"] .recommendations h3 {
    color: #90caf9;
}
[data-theme="dark"] .recommendations li {
    border-bottom: 1px solid #37474f;
}
[data-theme="dark"] .recommendations li:before {
    color: #66bb6a;
}
[data-theme="dark"] .bmi-category {
    color: #e3f2fd;
}
[data-theme="dark"] .bmi-display {
    color: #e3f2fd;
}
[data-theme="dark"] #bmiValue {
    color: #90caf9;
}
[data-theme="dark"] #bmiComment {
    color: #ffd54f;
}

/* --- PROFESYONEL RESPONSIVE & ANİMASYON --- */
@media (max-width: 540px) {
  .container, .calculator-section, .workout-planner, .tip-section, .result-section, .planner-section {
    padding: 2vw 1vw;
  }
  h1 { font-size: 1.1em; }
  h2 { font-size: 1em; }
  .home-card, .calculator-section, .workout-planner, .tip-section, .result-section, .planner-section {
    border-radius: 8px;
  }
  .logo-area svg { width: 40px; height: 40px; }
}
@media (max-width: 375px) {
  .container, .calculator-section, .workout-planner, .tip-section, .result-section, .planner-section {
    padding: 1vw 0.5vw;
  }
  h1 { font-size: 1em; }
  h2 { font-size: 0.95em; }
  .home-card, .calculator-section, .workout-planner, .tip-section, .result-section, .planner-section {
    border-radius: 6px;
  }
}

/* Micro-interaction ve focus stilleri */
button, .detail-btn, .calculate-btn, .timer-btn, .back-button, .duration-btn, .level-btn {
  outline: none;
  box-shadow: 0 2px 8px rgba(67,181,129,0.08);
  transition: background 0.2s, color 0.2s, box-shadow 0.2s, transform 0.1s;
}
button:focus, .detail-btn:focus, .calculate-btn:focus, .timer-btn:focus, .back-button:focus, .duration-btn:focus, .level-btn:focus {
  box-shadow: 0 0 0 3px #b2f7ef, 0 2px 8px rgba(67,181,129,0.12);
  outline: none;
}
button:active, .detail-btn:active, .calculate-btn:active, .timer-btn:active, .back-button:active, .duration-btn:active, .level-btn:active {
  transform: scale(0.97);
}

.home-card, .calculator-section, .workout-planner, .tip-section, .result-section, .planner-section {
  box-shadow: 0 4px 24px rgba(44,62,80,0.10);
  border: 1.5px solid #e0e0e0;
  transition: box-shadow 0.2s, border 0.2s;
}
[data-theme="dark"] .home-card, [data-theme="dark"] .calculator-section, [data-theme="dark"] .workout-planner, [data-theme="dark"] .tip-section, [data-theme="dark"] .result-section, [data-theme="dark"] .planner-section {
  box-shadow: 0 4px 24px rgba(33,150,243,0.10);
  border: 1.5px solid #333a;
}

input, select {
  border: 1.5px solid #bdbdbd;
  transition: border 0.2s, box-shadow 0.2s;
}
input:focus, select:focus {
  border: 1.5px solid #43b581;
  box-shadow: 0 0 0 2px #b2f7ef;
  outline: none;
}
[data-theme="dark"] input, [data-theme="dark"] select {
  border: 1.5px solid #616161;
}
[data-theme="dark"] input:focus, [data-theme="dark"] select:focus {
  border: 1.5px solid #43b581;
  box-shadow: 0 0 0 2px #43b58144;
}

/* Tipografi güçlendirme */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  letter-spacing: 0.01em;
}
body, p, li, label, input, select, button {
  font-weight: 400;
  letter-spacing: 0.01em;
}

/* Renk körlüğü dostu ve kontrast artırımı */
:root {
  --underweight-color: #2e86ab;
  --normal-color: #43b581;
  --overweight-color: #f4b942;
  --obese-color: #e74c3c;
}
.scale-item.underweight { color: var(--underweight-color); }
.scale-item.normal { color: var(--normal-color); }
.scale-item.overweight { color: var(--overweight-color); }
.scale-item.obese { color: var(--obese-color); }
[data-theme="dark"] .scale-item.underweight { color: #4fc3f7; }
[data-theme="dark"] .scale-item.normal { color: #b9f6ca; }
[data-theme="dark"] .scale-item.overweight { color: #ffe082; }
[data-theme="dark"] .scale-item.obese { color: #ffcccb; }

/* SVG ve ikon animasyonları */
.logo-area svg, .btn-icon {
  transition: transform 0.18s cubic-bezier(.4,2,.6,1), box-shadow 0.18s;
}
.logo-area svg:hover, .btn-icon:hover {
  transform: scale(1.08) rotate(-2deg);
  box-shadow: 0 2px 12px #43b58133;
}

.dev-info {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 32px 0 0 0;
  padding: 0;
  background: none;
  box-shadow: none;
  border-radius: 0;
  max-width: 100%;
}
.dev-site-link {
  color: #43b581;
  font-weight: 600;
  text-decoration: none;
  font-size: 1.08em;
  padding: 4px 12px;
  border-radius: 6px;
  border: none;
  background: none;
  transition: color 0.18s, text-decoration 0.18s;
  text-align: center;
  display: inline-block;
}
.dev-site-link:hover, .dev-site-link:focus {
  color: #37996b;
  text-decoration: underline;
  outline: none;
}
[data-theme="dark"] .dev-site-link {
  color: #b9f6ca;
}
[data-theme="dark"] .dev-site-link:hover, [data-theme="dark"] .dev-site-link:focus {
  color: #43b581;
}
@media (max-width: 600px) {
  .dev-info {
    margin: 18px 0 0 0;
  }
  .dev-site-link {
    font-size: 1em;
    padding: 4px 6px;
  }
}