:root {
    --primary-dark: #1a5d1a;
    --accent-green: #22c55e;
    --text-muted: #64748b;
}

body {
    font-family: 'Inter', sans-serif;
    background: #f8fafc;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    overflow: hidden;
    position: relative;
}

/* container */
.login-container {
    position: relative;
    z-index: 10;
    animation: fadeIn 0.8s ease-out;
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    background: #ffffff;
    padding: 55px 45px;
    border-radius: 20px;
    border: 1px solid #f1f5f9;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.04);
}

.brand-logo {
    text-align: center;
    margin-bottom: 35px;
}

.login-logo {
    width: 100%;
    max-width: 150px;
    height: auto;
    object-fit: contain;
    margin-bottom: 25px;
}

.brand-logo h2 {
    color: var(--primary-dark);
    font-weight: 700;
    letter-spacing: -0.025em;
    font-size: 1.8rem;
    margin: 0;
}

.brand-logo p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: 8px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--primary-dark);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.input-wrapper {
    position: relative;
}

.form-group input {
    width: 100%;
    padding: 14px 16px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    outline: none;
    transition: all 0.3s ease;
    box-sizing: border-box;
    font-size: 1rem;
    color: var(--primary-dark);
}

.form-group input:focus {
    border-color: var(--accent-green);
    box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.1);
}

.toggle-btn {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: #94a3b8;
    transition: color 0.3s;
}

.toggle-btn:hover {
    color: var(--accent-green);
}

.btn-login {
    width: 100%;
    padding: 15px;
    background: var(--primary-dark);
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.btn-login:hover {
    background: #000;
    transform: translateY(-1px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.error-msg {
    background: #fee2e2;
    color: #ef4444;
    padding: 12px;
    border-radius: 10px;
    margin-bottom: 25px;
    text-align: center;
    font-size: 0.85rem;
    border: 1px solid #fecaca;
    animation: shake 0.4s;
}

/* animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-5px);
    }

    75% {
        transform: translateX(5px);
    }
}

/* footer */
.footer-text {
    text-align: center;
    margin-top: 30px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* checkbox */
.remember-me {
    margin-bottom: 25px;
    display: flex;
    align-items: center;
}

.remember-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-muted);
    user-select: none;
    transition: color 0.3s;
}

.remember-label:hover {
    color: var(--primary-dark);
}

.remember-label input {
    display: none;
}

.checkmark-custom {
    width: 18px;
    height: 18px;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
    margin-right: 12px;
    display: inline-block;
    position: relative;
    transition: all 0.3s;
    background: white;
}

.remember-label input:checked+.checkmark-custom {
    background: var(--accent-green);
    border-color: var(--accent-green);
}

.remember-label input:checked+.checkmark-custom::after {
    content: "\f00c";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: white;
    font-size: 10px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}