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

:root {
    --primary-color: #2c5aa0;   /* Plava sa hardoffice.rs */
    --secondary-color: #333333; /* Tamno siva */
    --accent-color: #f8a01d;    /* Narandžasta sa hardoffice.rs */
    --light-gray: #f5f7fa;
    --text-dark: #333333;
    --text-light: #666666;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--primary-color) 0%, #1e3a8a 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    background: white;
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    max-width: 1000px;
    width: 100%;
}

.login-header {
    background: var(--primary-color);
    color: white;
    padding: 40px 30px;
    text-align: center;
    position: relative;
}

.logo-container {
    margin-bottom: 20px;
}

.logo {
    max-width: 180px;
    height: auto;
    filter: brightness(0) invert(1); /* Ovo će logo učiniti belim - prilagodi po potrebi */
}

.login-header h1 {
    margin-bottom: 10px;
    font-size: 2.2em;
    font-weight: 600;
}

.login-header p {
    font-size: 1.1em;
    opacity: 0.9;
}

.login-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.login-option {
    padding: 50px 40px;
    text-align: center;
    border-right: 1px solid #eee;
    transition: all 0.3s ease;
}

.login-option:hover {
    background: var(--light-gray);
    transform: translateY(-5px);
}

.login-option:last-child {
    border-right: none;
}

.login-option h2 {
    margin-bottom: 15px;
    color: var(--text-dark);
    font-size: 1.5em;
}

.login-option p {
    color: var(--text-light);
    margin-bottom: 25px;
    line-height: 1.5;
}

.login-form {
    padding: 50px;
    max-width: 450px;
    margin: 0 auto;
}

.login-form h2 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--text-dark);
    font-size: 1.8em;
}

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

label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.95em;
}

input[type="text"],
input[type="password"],
input[type="email"] {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s;
    background: var(--light-gray);
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus {
    outline: none;
    border-color: var(--primary-color);
    background: white;
    box-shadow: 0 0 0 3px rgba(44, 90, 160, 0.1);
}

.btn {
    display: inline-block;
    padding: 14px 30px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    min-width: 200px;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    width: 100%;
}

.btn-primary:hover {
    background: #254a8a;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(44, 90, 160, 0.3);
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background: #2a2a2a;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(58, 58, 58, 0.3);
}

.alert {
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 25px;
    text-align: center;
    font-weight: 500;
}

.alert-error {
    background: #fee;
    color: #c33;
    border: 1px solid #fcc;
}

.login-links {
    text-align: center;
    margin-top: 25px;
}

.login-links a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.login-links a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    .login-options {
        grid-template-columns: 1fr;
    }
    
    .login-option {
        padding: 40px 30px;
        border-right: none;
        border-bottom: 1px solid #eee;
    }
    
    .login-header {
        padding: 30px 20px;
    }
    
    .login-form {
        padding: 40px 30px;
    }
    
    .logo {
        max-width: 140px;
    }
}
.logo-placeholder {
    background: var(--primary-color);
    color: white;
    padding: 15px 25px;
    border-radius: 8px;
    text-align: center;
    display: inline-block;
}

.logo-text {
    font-size: 24px;
    font-weight: bold;
    display: block;
}

.logo-subtitle {
    font-size: 12px;
    opacity: 0.9;
    display: block;
}