@font-face {
    font-family: 'Vazirmatn';
    src: url('../fonts/Vazirmatn-Regular.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
  }
  
  @font-face {
    font-family: 'Vazirmatn';
    src: url('../fonts/Vazirmatn-Bold.woff2') format('woff2');
    font-weight: bold;
    font-style: normal;
    font-display: swap;
  }

/*===== VARIABLES =====*/
:root {
    /* Color Palette */
    --primary-color: #0066cc;
    --primary-dark: #0052a3;
    --secondary-color: #00b4d8;
    --accent-color: #48cae4;
    --light-blue: #90e0ef;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --medium-gray: #e9ecef;
    --dark-gray: #495057;
    --black: #212529;
    
    /* Typography */
    --font-family: 'Vazirmatn', Arial, sans-serif;
    --font-light: 300;
    --font-regular: 400;
    --font-medium: 500;
    --font-semibold: 600;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-circle: 50%;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
    --shadow-primary: 0 4px 12px rgba(0, 102, 204, 0.3);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Font Face for Persian Support */
@font-face {
    font-family: 'Vazirmatn';
    src: url('../fonts/Vazirmatn-Regular.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
  }
  
  @font-face {
    font-family: 'Vazirmatn';
    src: url('../fonts/Vazirmatn-Bold.woff2') format('woff2');
    font-weight: bold;
    font-style: normal;
    font-display: swap;
  }

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

body {
    font-family: var(--font-family);
    background-color: var(--light-gray);
    color: var(--dark-gray);
    line-height: 1.6;
    overflow-x: hidden;
    text-align: right;
    direction: rtl;
}

/*===== WATER BACKGROUND EFFECT =====*/
.water-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.water-drop {
    position: absolute;
    background: rgba(144, 224, 239, 0.2);
    border-radius: 50%;
    animation: float 15s infinite linear;
}

.water-drop:nth-child(1) {
    width: 300px;
    height: 300px;
    top: 20%;
    right: 10%;
    animation-delay: 0s;
}

.water-drop:nth-child(2) {
    width: 200px;
    height: 200px;
    top: 60%;
    right: 70%;
    animation-delay: 3s;
}

.water-drop:nth-child(3) {
    width: 150px;
    height: 150px;
    top: 80%;
    right: 30%;
    animation-delay: 6s;
}

@keyframes float {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 0.4;
    }
    50% {
        opacity: 0.8;
    }
    100% {
        transform: translateY(-100vh) rotate(360deg);
        opacity: 0;
    }
}

/*===== LOGIN CONTAINER =====*/
.login-container {
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl);
}

.login-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-xl);
    width: 100%;
    max-width: 420px;
    z-index: 1;
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 6px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.company-brand {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.company-brand .logo {
    width: 80px;
    height: 80px;
    margin-bottom: var(--space-md);
}

.company-brand h1 {
    color: var(--primary-color);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-xs);
}

.company-brand h2 {
    color: var(--dark-gray);
    font-weight: var(--font-light);
    font-size: 1.2rem;
}

/*===== FORM STYLES =====*/
.form-title {
    text-align: center;
    margin-bottom: var(--space-lg);
    color: var(--black);
    font-weight: var(--font-medium);
    font-size: 1.5rem;
}

.input-group {
    position: relative;
    margin-bottom: var(--space-lg);
}

.input-icon {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--dark-gray);
    z-index: 1;
}

.input-group input {
    width: 100%;
    padding: var(--space-md) var(--space-md) var(--space-md) 40px;
    border: 1px solid var(--medium-gray);
    border-radius: var(--radius-sm);
    font-family: var(--font-family);
    font-size: 0.95rem;
    transition: var(--transition-medium);
    background-color: var(--light-gray);
    position: relative;
    text-align: center;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: var(--shadow-primary);
    background-color: var(--white);
}

.input-group input::placeholder {
    color: var(--dark-gray);
    opacity: 0.6;
}

.input-bar {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: var(--transition-medium);
}

.input-group input:focus ~ .input-bar {
    width: 100%;
}

.password-toggle {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--dark-gray);
    cursor: pointer;
    z-index: 1;
}

.password-toggle:hover {
    color: var(--primary-color);
}

/*===== MESSAGES =====*/
.messages {
    margin-bottom: var(--space-lg);
}

.message {
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-sm);
    display: flex;
    align-items: center;
    font-size: 0.9rem;
}

.message i {
    margin-left: var(--space-sm);
    margin-right: 0;
}

.message.success {
    background-color: rgba(46, 204, 113, 0.1);
    color: var(--success-color);
    border: 1px solid rgba(46, 204, 113, 0.2);
}

.message.error {
    background-color: rgba(231, 76, 60, 0.1);
    color: var(--error-color);
    border: 1px solid rgba(231, 76, 60, 0.2);
}

.message.warning {
    background-color: rgba(243, 156, 18, 0.1);
    color: var(--warning-color);
    border: 1px solid rgba(243, 156, 18, 0.2);
}

/*===== BUTTON =====*/
.login-button {
    width: 100%;
    padding: var(--space-md);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-family);
    font-weight: var(--font-medium);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-medium);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-lg);
    box-shadow: var(--shadow-primary);
}

.login-button i {
    margin-right: var(--space-sm);
    margin-left: 0;
    transition: var(--transition-fast);
}

.login-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 102, 204, 0.4);
}

.login-button:hover i {
    transform: translateX(-3px);
}

.login-button:active {
    transform: translateY(0);
}

/*===== ILLUSTRATION =====*/
.login-illustration {
    display: none;
}

/*===== RESPONSIVE =====*/
@media (min-width: 992px) {
    .login-container {
        justify-content: space-around;
    }
    
    .login-illustration {
        display: block;
        width: 25%;
        max-width: 500px;
        margin-right: var(--space-xl);
        margin-left: 0;
    }
    
    .login-illustration img {
        width: 100%;
        height: auto;
        animation: float-up 2s ease-in-out infinite alternate;
    }
    
    @keyframes float-up {
        0% {
            transform: translateY(0);
        }
        100% {
            transform: translateY(-20px);
        }
    }
}

@media (max-width: 576px) {
    .login-container {
        padding: var(--space-md);
    }
    
    .login-card {
        padding: var(--space-lg);
    }
}