@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;700&display=swap');
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --sidebar-width: 70px;
    --sidebar-expanded: 250px;
    --primary: #3b82f6;
    --primary-dark: #1d4ed8;
    --secondary: #6b7280;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --bg: #ffffff;
    --bg-secondary: #f9fafb;
    --text: #111827;
    --text-secondary: #6b7280;
    --border: #e5e7eb;
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --radius: 8px;
    --transition: all 0.3s ease;

    --shadow: 0 4px 20px rgba(9, 8, 8, 0.08);
    --transition: all 0.3s ease;
    --accent-color: #00aaff;
    --light-gray: #f5f7fa;
    --medium-gray: #e1e5eb;
    --dark-gray: #6c757d;
    --error-color: #dc3545;
    --success-color: #28a745;
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --sidebar-bg: #1e293b;
    --sidebar-text: #cbd5e1;
    --sidebar-active: #3b82f6;
    --content-bg: #ffffff;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --card-shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --bg-color: #f4f7f6;
    --sidebar-link-color: #bdc3c7;
    --sidebar-hover-bg: #34495e;
    --header-border: #e0e0e0;
    --active-tab-bg: #1abc9c;
    --long-content-bg: #f9f9f9;
    --stroke: #2c3e50;
}

body {
    font-family: 'Poppins', sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.system_title {
    background: linear-gradient(135deg, var(--sidebar-active) 0%, var(--stroke) 70%, var(--text-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
    font-size: 35px;
    font-weight: bold;
    display: inline-block;
    text-transform: capitalize;
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    margin-bottom: 30px;
}

.container {
    width: 100%;
    max-width: 400px;
}

.card {
    background: white;
    border-radius: 20px;
    padding: 40px;
}

.logo {
    text-align: center;
    margin-bottom: 30px;
}

.logo h1 {
    color: #FF6B35;
    font-size: 28px;
    margin-bottom: 5px;
}

.logo p {
    color: #666;
    font-size: 14px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
    font-size: 14px;
}

.form-group input {
    width: 100%;
    padding: 15px;
    border: 2px solid #ddd;
    font-size: 16px;
    transition: all 0.3s;
}

.form-group input:focus {
    border-color: #FF6B35;
    box-shadow: 0 0 0 3px rgba(255,107,53,0.1);
    outline: none;
}

.otp-container {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-bottom: 25px;
}

.otp-input {
    width: 50px;
    height: 60px;
    text-align: center;
    font-size: 24px;
    font-weight: bold;
    border: 2px solid #ddd;
    border-radius: 10px;
    transition: all 0.3s;
    background: white;
}

.otp-input:focus {
    border-color: #FF6B35;
    box-shadow: 0 0 0 3px rgba(255,107,53,0.1);
    outline: none;
}

.btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--sidebar-active) 0%, var(--stroke) 70%, var(--text-primary) 100%);
    color: white;
    border: none;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255,107,53,0.3);
}

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

.message {
    text-align: center;
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 10px;
    font-size: 14px;
}

.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

.nav-link {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: #666;
}

.nav-link a {
    color: #FF6B35;
    text-decoration: none;
    font-weight: 500;
}

.nav-link a:hover {
    text-decoration: underline;
}

@media (max-width: 480px) {
    .card {
        padding: 30px 20px;
    }
    
    .logo h1 {
        font-size: 24px;
    }
    
    .otp-input {
        width: 40px;
        height: 50px;
        font-size: 20px;
    }
}

@media (max-width: 380px) {
    .otp-input {
        width: 35px;
        height: 45px;
        font-size: 18px;
    }
}

.logo img {
    width: 140px;
    height: auto;
}