:root {
    --black: #1D1D1D;
    --lime: #DCF986;
    --green: #5EA977;
    --graywhite: #F6F6F6;
    --text: #0e0f10;
    --error: #ef4444;
}

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

body {
    font-family: 'Gilroy', -apple-system, BlinkMacSystemFont, 'Inter', sans-serif;
    background: linear-gradient(135deg, var(--green) 0%, var(--lime) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    width: 100%;
    max-width: 420px;
    padding: 48px 40px;
    animation: slideIn 0.4s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    text-align: center;
    margin-bottom: 40px;
}

.login-header h1 {
    font-size: 28px;
    font-weight: 800;
    color: var(--black);
    margin-bottom: 8px;
}

.login-header p {
    color: #6b7280;
    font-size: 14px;
}

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

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 14px;
    color: var(--text);
    margin-bottom: 8px;
}

.input-wrapper {
    position: relative;
}

.input-wrapper i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #9ca3af;
    font-size: 16px;
}

.form-control {
    width: 100%;
    padding: 14px 16px 14px 48px;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    font-size: 15px;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--green);
    box-shadow: 0 0 0 3px rgba(94, 169, 119, 0.1);
}

.form-control.error {
    border-color: var(--error);
}

.error-message {
    color: var(--error);
    font-size: 13px;
    margin-top: 8px;
    display: none;
}

.error-message.show {
    display: block;
}

.password-toggle {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #9ca3af;
    cursor: pointer;
    padding: 4px;
    transition: color 0.3s ease;
}

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

.login-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--green) 0%, var(--lime) 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 8px;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(94, 169, 119, 0.3);
}

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

.login-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.alert {
    padding: 14px 16px;
    border-radius: 10px;
    margin-bottom: 24px;
    font-size: 14px;
    font-weight: 500;
    display: none;
    align-items: center;
    gap: 12px;
}

.alert.show {
    display: flex;
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.alert i {
    font-size: 18px;
}

.back-link {
    text-align: center;
    margin-top: 24px;
}

.back-link a {
    color: var(--green);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: color 0.3s ease;
}

.back-link a:hover {
    color: var(--black);
}

@media (max-width: 480px) {
    .login-container {
        padding: 32px 24px;
    }

    .login-header h1 {
        font-size: 24px;
    }
}