:root {
    /* Light Mode Colors */
    --background-gradient: linear-gradient(to right, #fef9f9, rgb(180, 224, 241));
    --text-color: #333;
    --container-bg: linear-gradient(145deg, #fdfcfe, #d8f4ff);
    --container-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    --container-shadow-hover: 0 15px 30px rgba(0, 0, 0, 0.2);
    --heading-color: #00a8cc;
    --label-color: #444;
    --input-border: #d8f4ff;
    --input-border-focus: #00a8cc;
    --button-bg: linear-gradient(90deg, #00c9a7, #12d3cf);
    --button-bg-hover: linear-gradient(90deg, #00b49c, #0ec7c3);
    --button-shadow: 0 4px 12px rgba(0, 201, 167, 0.5);
    --button-shadow-hover: 0 6px 15px rgba(0, 201, 167, 0.7);
    --alert-bg: #f8d7da;
    --alert-text: #721c24;
    --link-color: #00a8cc;
    --link-color-hover: #0ec7c3;
    --link-underline: #00a8cc;
}

/* Dark Mode Colors */
body.dark-mode {
    --background-gradient: linear-gradient(to right, #1a1a1a, #2c3e50);
    --text-color: #e0e0e0;
    --container-bg: linear-gradient(145deg, #2c2c2c, #3a3a3a);
    --container-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    --container-shadow-hover: 0 15px 30px rgba(0, 0, 0, 0.5);
    --heading-color: #3498db;
    --label-color: #b0b0b0;
    --input-border: #34495e;
    --input-border-focus: #3498db;
    --button-bg: linear-gradient(90deg, #3498db, #2980b9);
    --button-bg-hover: linear-gradient(90deg, #2980b9, #1f618d);
    --button-shadow: 0 4px 12px rgba(52, 152, 219, 0.5);
    --button-shadow-hover: 0 6px 15px rgba(52, 152, 219, 0.7);
    --alert-bg: #4a2529;
    --alert-text: #f5b7b1;
    --link-color: #3498db;
    --link-color-hover: #5dade2;
    --link-underline: #3498db;
}

body {
    margin: 0;
    font-family: 'Cairo', sans-serif;
    background: var(--background-gradient);
    color: var(--text-color);
    transition: background 0.3s ease, color 0.3s ease;
}

html[dir="rtl"] body {
    text-align: right;
}

/* Toggle Buttons */
.toggle-container {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 15px;
}

html[dir="rtl"] .toggle-container {
    right: unset;
    left: 20px;
}

.dark-mode-toggle, .language-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.dark-mode-toggle i, .language-toggle i {
    font-size: 20px;
    color: var(--text-color);
    transition: color 0.3s ease;
}

.container {
    max-width: 500px;
    margin: 50px auto;
    background: var(--container-bg);
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--container-shadow);
    text-align: center;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.container:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--container-shadow-hover);
}

h2 {
    color: var(--heading-color);
    font-size: 28px;
    margin: 20px 0;
}

.logo {
    width: 100px;
    border-radius: 50%;
    margin-bottom: 20px;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.1);
}

label {
    display: block;
    margin-bottom: 10px;
    font-weight: bold;
    color: var(--label-color);
    text-align: left;
}

html[dir="rtl"] label {
    text-align: right;
}

input, select {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid var(--input-border);
    border-radius: 5px;
    font-size: 16px;
    box-sizing: border-box;
    color: var(--text-color);
    background-color: transparent;
    transition: border-color 0.3s ease;
}

input:focus, select:focus {
    border-color: var(--input-border-focus);
    outline: none;
}

button {
    display: inline-block;
    background: var(--button-bg);
    color: white;
    padding: 12px 30px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: var(--button-shadow);
    transition: all 0.3s ease;
}

button:hover {
    background: var(--button-bg-hover);
    transform: scale(1.1) translateY(-3px);
    box-shadow: var(--button-shadow-hover);
}

.alert {
    background-color: var(--alert-bg);
    color: var(--alert-text);
    padding: 10px;
    margin-bottom: 20px;
    border-radius: 5px;
    text-align: center;
}

.footer {
    margin-top: 15px;
    font-size: 16px;
}

.footer button.login-btn {
    background: var(--button-bg);
    color: white;
    padding: 10px 25px;
    font-size: 14px;
    font-weight: 600;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: var(--button-shadow);
    transition: all 0.3s ease;
    display: inline-block;
    margin-left: 10px;
    visibility: visible !important; /* Ensure button is always visible */
}

html[dir="rtl"] .footer button.login-btn {
    margin-left: 0;
    margin-right: 10px;
}

.footer button.login-btn:hover {
    background: var(--button-bg-hover);
    transform: scale(1.1) translateY(-3px);
    box-shadow: var(--button-shadow-hover);
}

p {
    font-size: 18px;
    color: var(--text-color);
    margin: 10px 0 20px;
}

/* Style for form errors */
.errorlist {
    color: var(--alert-text);
    background-color: var(--alert-bg);
    padding: 5px 10px;
    border-radius: 5px;
    list-style: none;
    text-align: left;
    margin-top: -10px;
    margin-bottom: 10px;
}

html[dir="rtl"] .errorlist {
    text-align: right;
}