:root {
    --primary-color: #31C2DD;
    --primary-dark: #28a8c0;
    --primary-light: #5dd4e8;
    --gradient-primary: #31C2DD;
    --gradient-primary-hover: #28a8c0;
    --shadow-sm: 0 2px 8px rgba(49, 194, 221, 0.15);
    --shadow-md: 0 4px 16px rgba(49, 194, 221, 0.2);
    --shadow-lg: 0 8px 32px rgba(49, 194, 221, 0.3);
}

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

body {
    font-family: 'Vazirmatn', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #31C2DD;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

/* Animated Background */
body::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
    top: -50%;
    left: -50%;
}

body::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
    animation: moveGrid 20s linear infinite;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes moveGrid {
    0% { transform: translate(0, 0); }
    100% { transform: translate(100px, 100px); }
}

/* Auth Container */
.auth-container {
    width: 100%;
    max-width: 450px;
    position: relative;
    z-index: 1;
}

.auth-card {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-radius: 30px;
    padding: 3rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.5);
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Logo Section */
.logo-section {
    text-align: center;
    margin-bottom: 2.5rem;
}

.logo-section img {
    height: 70px;
    width: auto;
    object-fit: contain;
    margin-bottom: 1rem;
    filter: drop-shadow(0 4px 8px rgba(49, 194, 221, 0.2));
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

.logo-section h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.logo-section p {
    font-size: 0.9rem;
    color: #6c757d;
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-weight: 600;
    color: #2d3436;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-control {
    width: 100%;
    padding: 0.875rem 1.25rem;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    background: white;
    box-shadow: 0 0 0 4px rgba(49, 194, 221, 0.1);
}

.form-control-wrap {
    position: relative;
}

.password-toggle {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #6c757d;
    cursor: pointer;
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

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

/* Button Styles */
        .btn-primary {
            width: 100%;
            padding: 1rem;
            background: #31C2DD;
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 1.1rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-md);
            position: relative;
            overflow: hidden;
        }

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::before {
    width: 300px;
    height: 300px;
}

        .btn-primary:hover {
            background: #28a8c0;
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

.btn-primary:active {
    transform: translateY(0);
}

.btn-danger {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
    color: white;
    border: none;
    padding: 0.875rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(220, 53, 69, 0.3);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(220, 53, 69, 0.4);
}

.btn-secondary {
    background: #6c757d;
    color: white;
    border: none;
    padding: 0.875rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: #5a6268;
    color: white;
    transform: translateY(-2px);
}

/* Alert Styles */
.alert {
    padding: 1rem 1.25rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    border: none;
    animation: slideDown 0.4s ease-out;
}

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

.alert-danger {
    background: linear-gradient(135deg, #fee 0%, #fdd 100%);
    color: #721c24;
    border-right: 4px solid #dc3545;
}

.alert-warning {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    color: #856404;
    border-right: 4px solid #ffc107;
}

.alert-info {
    background: linear-gradient(135deg, #d1ecf1 0%, #bee5eb 100%);
    color: #0c5460;
    border-right: 4px solid var(--primary-color);
}

.alert-icon {
    margin-left: 0.5rem;
}

/* Footer */
.auth-footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #e9ecef;
}

.auth-footer p {
    color: #6c757d;
    font-size: 0.85rem;
    margin: 0;
}

/* Icon Container */
.icon-container {
    text-align: center;
    margin-bottom: 2rem;
}

        .icon-wrapper {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 80px;
            height: 80px;
            background: #31C2DD;
            border-radius: 50%;
            box-shadow: var(--shadow-md);
            animation: pulse 2s ease-in-out infinite;
        }

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: var(--shadow-md);
    }
    50% {
        transform: scale(1.05);
        box-shadow: var(--shadow-lg);
    }
}

.icon-wrapper i {
    font-size: 2.5rem;
    color: white;
}

/* Responsive */
@media (max-width: 768px) {
    .auth-card {
        padding: 2rem 1.5rem;
        border-radius: 20px;
    }

    .logo-section img {
        height: 60px;
    }

    .logo-section h1 {
        font-size: 1.5rem;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}