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

:root {
    --primary-color: #4A90E2;
    --secondary-color: #7B68EE;
    --success-color: #50C878;
    --warning-color: #FFA500;
    --danger-color: #FF6B6B;
    --bg-color: #F5F7FA;
    --card-bg: #FFFFFF;
    --text-primary: #2C3E50;
    --text-secondary: #7F8C8D;
    --border-color: #E1E8ED;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 12px rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: var(--text-primary);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--card-bg);
    border-radius: 20px;
    box-shadow: var(--shadow-hover);
    padding: 40px;
    min-height: calc(100vh - 40px);
    display: flex;
    flex-direction: column;
}

header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.logo-container {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo-img {
    max-width: 200px;
    height: auto;
    object-fit: contain;
}

header h1 {
    font-size: 3em;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-weight: 700;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.2em;
    font-weight: 300;
}

main {
    flex: 1;
}

.question-card {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 15px;
    padding: 40px;
    text-align: center;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
}

.question-card h2 {
    font-size: 2.5em;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.question-subtitle {
    color: var(--text-secondary);
    font-size: 1.1em;
    margin-bottom: 30px;
}

.emoji-container {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-top: 30px;
}

.emoji-btn {
    background: var(--card-bg);
    border: 3px solid var(--border-color);
    border-radius: 20px;
    padding: 30px 40px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    min-width: 150px;
    box-shadow: var(--shadow);
}

.emoji-btn:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.emoji-btn.selected {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.emoji-btn.selected .emoji-label {
    color: white;
}

.emoji {
    font-size: 5em;
    transition: transform 0.3s ease;
}

.emoji-btn:hover .emoji {
    transform: scale(1.2);
}

.emoji-label {
    font-size: 1.3em;
    font-weight: 600;
    color: var(--text-primary);
}

.feedback-message {
    margin-top: 30px;
    padding: 15px;
    border-radius: 10px;
    font-size: 1.2em;
    font-weight: 600;
    display: none;
}

.feedback-message.success {
    background: var(--success-color);
    color: white;
    display: block;
    animation: fadeIn 0.5s ease;
}

.feedback-message.error {
    background: var(--danger-color);
    color: white;
    display: block;
    animation: fadeIn 0.5s ease;
}

/* قسم التعليق */
.comment-section {
    margin-top: 30px;
    padding: 25px;
    background: var(--card-bg);
    border-radius: 15px;
    box-shadow: var(--shadow);
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.comment-label {
    display: block;
    margin-bottom: 15px;
    font-size: 1.2em;
    font-weight: 600;
    color: var(--text-primary);
}

.comment-input {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 1.1em;
    font-family: inherit;
    resize: vertical;
    transition: all 0.3s ease;
}

.comment-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

/* Popup للرسالة التحفيزية */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.popup-overlay.active {
    opacity: 1;
    visibility: visible;
}

.popup-content {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 40px;
    max-width: 500px;
    width: 90%;
    text-align: center;
    position: relative;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    transform: scale(0.7) translateY(-50px);
    transition: transform 0.3s ease;
    animation: popupBounce 0.5s ease forwards;
}

.popup-overlay.active .popup-content {
    transform: scale(1) translateY(0);
}

@keyframes popupBounce {
    0% {
        transform: scale(0.7) translateY(-50px);
        opacity: 0;
    }
    50% {
        transform: scale(1.05) translateY(0);
    }
    100% {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

.popup-close {
    position: absolute;
    top: 15px;
    left: 15px;
    background: transparent;
    border: none;
    font-size: 2.5em;
    color: var(--text-secondary);
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
    line-height: 1;
}

.popup-close:hover {
    background: var(--danger-color);
    color: white;
    transform: rotate(90deg);
}

.popup-icon {
    font-size: 4em;
    margin-bottom: 15px;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.popup-title {
    font-size: 1.8em;
    color: var(--primary-color);
    margin-bottom: 20px;
    font-weight: 700;
}

.popup-text {
    font-size: 1.3em;
    color: var(--text-primary);
    line-height: 1.8;
    margin-bottom: 30px;
    padding: 20px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 15px;
    border-right: 4px solid var(--primary-color);
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.navigation {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 30px;
}

.btn-primary,
.btn-secondary,
.btn-danger {
    padding: 15px 30px;
    border: none;
    border-radius: 10px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.btn-primary:hover,
.btn-secondary:hover,
.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.stat-card {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 15px;
    padding: 30px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

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

.stat-icon {
    font-size: 4em;
}

.stat-info {
    flex: 1;
}

.stat-info h3 {
    font-size: 2.5em;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.stat-info p {
    color: var(--text-secondary);
    font-size: 1.2em;
    margin-bottom: 10px;
}

.stat-percentage {
    font-size: 1.5em;
    font-weight: 700;
    color: var(--primary-color);
}

.chart-container {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
}

.chart-container h2 {
    margin-bottom: 20px;
    color: var(--text-primary);
    text-align: center;
    font-size: 1.8em;
}

.chart-container canvas {
    max-height: 400px;
}

/* قسم التعليقات في لوحة التحكم */
.comments-container {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
}

.comments-container h2 {
    margin-bottom: 20px;
    color: var(--text-primary);
    text-align: center;
    font-size: 1.8em;
}

.comments-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.comment-item {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 12px;
    padding: 20px;
    border-right: 4px solid var(--primary-color);
    transition: transform 0.2s ease;
}

.comment-item:hover {
    transform: translateX(-5px);
}

.comment-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.comment-mood {
    font-size: 1.5em;
}

.comment-time {
    color: var(--text-secondary);
    font-size: 0.9em;
    margin-right: auto;
}

.comment-text {
    color: var(--text-primary);
    font-size: 1.1em;
    line-height: 1.6;
    margin-top: 10px;
    padding: 15px;
    background: var(--card-bg);
    border-radius: 8px;
    border-right: 3px solid var(--primary-color);
}

.no-comments {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.2em;
    padding: 40px;
    font-style: italic;
}

/* محدد التاريخ */
.date-selector-container {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
}

.date-selector-container h2 {
    margin-bottom: 20px;
    color: var(--text-primary);
    text-align: center;
    font-size: 1.8em;
}

.date-selector {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 15px;
}

.date-selector label {
    font-size: 1.2em;
    font-weight: 600;
    color: var(--text-primary);
}

.date-input {
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 1.1em;
    font-family: inherit;
    transition: all 0.3s ease;
    min-width: 200px;
}

.date-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.selected-date-display {
    text-align: center;
    font-size: 1.1em;
    color: var(--primary-color);
    font-weight: 600;
    margin-top: 10px;
}

footer {
    text-align: center;
    padding-top: 20px;
    border-top: 2px solid var(--border-color);
    color: var(--text-secondary);
    margin-top: 40px;
}

/* نموذج تسجيل الدخول */
.login-card {
    max-width: 500px;
    margin: 0 auto;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 15px;
    padding: 40px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-size: 1.2em;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 1.1em;
    transition: all 0.3s ease;
    font-family: inherit;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.btn-block {
    width: 100%;
    margin-top: 10px;
}

.login-footer {
    margin-top: 30px;
    text-align: center;
    padding-top: 20px;
    border-top: 2px solid var(--border-color);
}

@media (max-width: 768px) {
    .container {
        padding: 20px;
    }

    .logo-img {
        max-width: 150px;
    }

    header h1 {
        font-size: 2em;
    }

    .question-card {
        padding: 20px;
    }

    .emoji-container {
        gap: 15px;
    }

    .emoji-btn {
        padding: 20px 30px;
        min-width: 120px;
    }

    .emoji {
        font-size: 4em;
    }

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