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

body {
    font-family: 'Nunito', sans-serif;
    background-color: #f0f4f8;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    direction: rtl;
    padding: 20px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

body.dark-mode {
    background-color: #121212;
    color: #ffffff;
}

.container {
    background-color: #ffffff;
    padding: 20px;
    max-width: 800px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    border-radius: 12px;
    animation: fadeIn 0.5s ease-in-out;
    transition: background-color 0.3s ease, color 0.3s ease;
    text-align: center;
}

body.dark-mode .container {
    background-color: #1e1e1e;
    color: #ffffff;
}

h1 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}

body.dark-mode h1 {
    color: #ffffff;
}

.top-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    gap: 20px;
}

.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    margin-bottom: 20px;
}

.curved-text-section {
    margin-top: 20px;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

body.dark-mode .curved-text-section {
    background-color: #333;
    color: #ffffff;
}

.form-group {
    flex: 1 1 200px;
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 8px;
    color: #555;
    font-weight: bold;
}

body.dark-mode .form-group label {
    color: #ffffff;
}

.form-group select,
.form-group input,
.form-group input[type="range"] {
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    font-family: 'Cairo', sans-serif;
}

body.dark-mode .form-group select,
body.dark-mode .form-group input,
body.dark-mode .form-group input[type="range"] {
    background-color: #333;
    color: #ffffff;
    border-color: #555;
}

.button-group,
.control-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 20px;
}

button {
    padding: 10px 20px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

button i {
    margin-left: 8px;
}

button:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 6px 10px rgba(0, 0, 0, 0.15);
}

button:active {
    background-color: #004085;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

button:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(2, 136, 209, 0.5);
}

.canvas-container {
    border: 2px solid #007bff;
    border-radius: 10px;
    overflow: hidden;
    margin: 0 auto;
    width: 100%;
    max-width: 794px; /* عرض A4 بالبيكسل */
    height: 1123px; /* ارتفاع A4 بالبيكسل */
    position: relative;
}

.size-display {
    background-color: rgba(0, 0, 0, 0.7);
    color: #fff;
    padding: 10px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: bold;
    z-index: 10;
    min-width: 200px;
    text-align: center;
}

body.dark-mode .size-display {
    background-color: rgba(255, 255, 255, 0.7);
    color: #000;
}

.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
}

.toast {
    background-color: #f44336;
    color: white;
    padding: 15px 20px;
    margin-top: 10px;
    border-radius: 5px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    animation: fadeOut 5s ease forwards;
    display: flex;
    align-items: center;
    gap: 10px;
}

.toast i {
    font-size: 18px;
}

@keyframes fadeOut {
    0% {
        opacity: 1;
    }
    80% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translateY(-20px);
    }
}

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

/* تصميم عصري لزر الوضع الداكن */
.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: 0.4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: #2196F3;
}

input:checked + .slider:before {
    transform: translateX(26px);
}

/* تصميم عصري للأيقونات في زر الوضع الداكن */
.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

.slider:after {
    content: '\1F319'; /* أيقونة القمر */
    position: absolute;
    top: 50%;
    right: 10px;
    transform: translateY(-50%);
    font-size: 18px;
    color: yellow;
}

input:checked + .slider:after {
    content: '\2600'; /* أيقونة الشمس */
    right: auto;
    left: 10px;
    color: yellow;
}

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

.extra-controls > div {
    flex: 1 1 48%;
    display: flex;
    justify-content: space-around;
    gap: 10px;
    margin-bottom: 10px;
}

.usage-guide {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    text-align: right;
    font-size: 18px;
    line-height: 1.6;
    display: none; /* مخفي بشكل افتراضي */
    z-index: 10000;
    max-width: 80%;
}

body.dark-mode .usage-guide {
    background-color: #2a2a2a;
    color: #ffffff;
}

.blur-background .container {
    filter: blur(5px);
    pointer-events: none;
}

@media (max-width: 768px) {
    .controls {
        flex-direction: column;
        align-items: stretch;
    }

    .form-group {
        flex: 1 1 100%;
    }

    .extra-controls > div {
        flex-direction: column;
        align-items: center;
    }
}